Inorganic or organic compounds that contain boron as an integral part of the molecule.
Inorganic and organic derivatives of boric acid either B(OH)3 or, preferably H3BO3.
A technique for the treatment of neoplasms, especially gliomas and melanomas in which boron-10, an isotope, is introduced into the target cells followed by irradiation with thermal neutrons.
A trace element with the atomic symbol B, atomic number 5, and atomic weight [10.806; 10.821]. Boron-10, an isotope of boron, is used as a neutron absorber in BORON NEUTRON CAPTURE THERAPY.
The collective name for the boron hydrides, which are analogous to the alkanes and silanes. Numerous boranes are known. Some have high calorific values and are used in high-energy fuels. (From Grant & Hackh's Chemical Dictionary, 5th ed)
Inorganic or organic salts and esters of boric acid.
A class of inorganic or organic compounds that contain the borohydride (BH4-) anion.
A technique for the treatment of neoplasms in which an isotope is introduced into target cells followed by irradiation with thermal neutrons.
Atomic species differing in mass number but having the same atomic number. (Grant & Hackh's Chemical Dictionary, 5th ed)
Electrically neutral elementary particles found in all atomic nuclei except light hydrogen; the mass is equal to that of the proton and electron combined and they are unstable when isolated from the nucleus, undergoing beta decay. Slow, thermal, epithermal, and fast neutrons refer to the energy levels with which the neutrons are ejected from heavier nuclei during their decay.
Compounds containing the -SH radical.
The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.
Inorganic or organic compounds that contain the general structure R2B(OH).
The spontaneous transformation of a nuclide into one or more different nuclides, accompanied by either the emission of particles from the nucleus, nuclear capture or ejection of orbital electrons, or fission. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A genus in the family Myrtaceae sometimes known as "stoppers" in FOLK MEDICINE. Many species of the genus SYZYGIUM have synonymous names that begin with the Eugenia genus name.
Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)
Elements with partially filled d orbitals. They constitute groups 3-12 of the periodic table of elements.
A trace element with the atomic symbol Ni, atomic number 28, and atomic weight 58.69. It is a cofactor of the enzyme UREASE.
Toxic, volatile, flammable liquid hydrocarbon byproduct of coal distillation. It is used as an industrial solvent in paints, varnishes, lacquer thinners, gasoline, etc. Benzene causes central nervous system damage acutely and bone marrow damage chronically and is carcinogenic. It was formerly used as parasiticide.
Organic compounds containing carbon and hydrogen in the form of an unsaturated, usually hexagonal ring structure. The compounds can be single ring, or double, triple, or multiple fused rings.
Isocoumarins found in ASPERGILLUS OCHRACEUS and other FUNGI. Ochratoxin contaminated FOOD has been responsible for cases of FOODBORNE DISEASES.
The study of crystal structure using X-RAY DIFFRACTION techniques. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
ENTEROCOLITIS with extensive ulceration (ULCER) and NECROSIS. It is observed primarily in LOW BIRTH WEIGHT INFANT.
Exploitation through misrepresentation of the facts or concealment of the purposes of the exploiter.
Inorganic salts of hydrofluoric acid, HF, in which the fluorine atom is in the -1 oxidation state. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Sodium and stannous salts are commonly used in dentifrices.
A continuing periodic change in displacement with respect to a fixed reference. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
A worm-like blind tube extension from the CECUM.
A spectroscopic technique in which a range of wavelengths is presented simultaneously with an interferometer and the spectrum is mathematically derived from the pattern thus obtained.
Spectrophotometry in the infrared region, usually for the purpose of chemical analysis through measurement of absorption spectra associated with rotational and vibrational energy levels of molecules. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A source of inorganic fluoride which is used topically to prevent dental caries.
A rare, metallic element designated by the symbol, Ga, atomic number 31, and atomic weight 69.72.
Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.
Electrical devices that are composed of semiconductor material, with at least three connections to an external electronic circuit. They are used to amplify electrical signals, detect signals, or as switches.
Energy transmitted from the sun in the form of electromagnetic radiation.
Ytterbium. An element of the rare earth family of metals. It has the atomic symbol Yb, atomic number 70, and atomic weight 173. Ytterbium has been used in lasers and as a portable x-ray source.
Inorganic or organic compounds that contain arsenic.
A mixture of metallic elements or compounds with other metallic or metalloid elements in varying proportions.
The ratio of radiation dosages required to produce identical change based on a formula comparing other types of radiation with that of gamma or roentgen rays.
Neutrons, the energy of which exceeds some arbitrary level, usually around one million electron volts.
The branch of chemistry dealing with detection (qualitative) and determination (quantitative) of substances. (Grant & Hackh's Chemical Dictionary, 5th ed)
Methodologies used for the isolation, identification, detection, and quantitation of chemical substances.
A colorless, slightly viscous liquid used as a defoaming or wetting agent. It is also used as a solvent for protective coatings, waxes, and oils, and as a raw material for plasticizers. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)
Isomeric forms and derivatives of octanol (C8H17OH).
A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Silicon polymers that contain alternate silicon and oxygen atoms in linear or cyclic molecular structures.
Inorganic compounds that contain aluminum as an integral part of the molecule.
Reducing the SURFACE TENSION at a liquid/solid interface by the application of an electric current across the interface thereby enhancing the WETTABILITY of the surface.
Substances used to create an impression, or negative reproduction, of the teeth and dental arches. These materials include dental plasters and cements, metallic oxide pastes, silicone base materials, or elastomeric materials.
Procedure of producing an imprint or negative likeness of the teeth and/or edentulous areas. Impressions are made in plastic material which becomes hardened or set while in contact with the tissue. They are later filled with plaster of Paris or artificial stone to produce a facsimile of the oral structures present. Impressions may be made of a full complement of teeth, of areas where some teeth have been removed, or in a mouth from which all teeth have been extracted. (Illustrated Dictionary of Dentistry, 1982)

Receptor-mediated targeting of fluorescent probes in living cells. (1/933)

A strategy was developed to label specified sites in living cells with a wide selection of fluorescent or other probes and applied to study pH regulation in Golgi. cDNA transfection was used to target a single-chain antibody to a specified site such as an organelle lumen. The targeted antibody functioned as a high affinity receptor to trap cell-permeable hapten-fluorophore conjugates. Synthesized conjugates of a hapten (4-ethoxymethylene-2-phenyl-2-oxazolin-5-one, phOx) and fluorescent probes (Bodipy Fl, tetramethylrhodamine, fluorescein) were bound with high affinity (approximately 5 nM) and specific localization to the single-chain antibody expressed in the endoplasmic reticulum, Golgi, and plasma membrane of living Chinese hamster ovary cells. Using the pH-sensitive phOx-fluorescein conjugate and ratio imaging microscopy, pH was measured in the lumen of Golgi (pH 6.25 +/- 0.06). Measurements of pH-dependent vacuolar H+/ATPase pump activity and H+ leak in Golgi provided direct evidence that resting Golgi pH is determined by balanced leak-pump kinetics rather than the inability of the H+/ATPase to pump against an electrochemical gradient. Like expression of the green fluorescent protein, the receptor-mediated fluorophore targeting approach permits specific intracellular fluorescence labeling. A significant advantage of the new approach is the ability to target chemical probes with custom-designed spectral and indicator properties.  (+info)

Endocytic sorting of lipid analogues differing solely in the chemistry of their hydrophobic tails. (2/933)

To understand the mechanisms for endocytic sorting of lipids, we investigated the trafficking of three lipid-mimetic dialkylindocarbocyanine (DiI) derivatives, DiIC16(3) (1,1'-dihexadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate), DiIC12(3) (1,1'- didodecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate), and FAST DiI (1,1'-dilinoleyl-3,3,3', 3'-tetramethylindocarbocyanine perchlorate), in CHO cells by quantitative fluorescence microscopy. All three DiIs have the same head group, but differ in their alkyl tail length or unsaturation; these differences are expected to affect their distribution in membrane domains of varying fluidity or curvature. All three DiIs initially enter sorting endosomes containing endocytosed transferrin. DiIC16(3), with two long 16-carbon saturated tails is then delivered to late endosomes, whereas FAST DiI, with two cis double bonds in each tail, and DiIC12(3), with saturated but shorter (12-carbon) tails, are mainly found in the endocytic recycling compartment. We also find that DiOC16(3) (3,3'- dihexadecyloxacarbocyanine perchlorate) and FAST DiO (3, 3'-dilinoleyloxacarbocyanine perchlorate) behave similarly to their DiI counterparts. Furthermore, whereas a phosphatidylcholine analogue with a BODIPY (4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) fluorophore attached at the end of a 5-carbon acyl chain is delivered efficiently to the endocytic recycling compartment, a significant fraction of another derivative with BODIPY attached to a 12-carbon acyl chain entered late endosomes. Our results thus suggest that endocytic organelles can sort membrane components efficiently based on their preference for association with domains of varying characteristics.  (+info)

Orientation of the pore-forming peptide GALA in POPC vesicles determined by a BODIPY-avidin/biotin binding assay. (3/933)

We determined the orientation of a biotinylated version of the pore-forming peptide GALA (WEAALAEALAEALAEHLAEALAEALEALAA) at pH 5.0 in large unilamellar phosphatidylcholine vesicles, using the enhancement of BODIPY-avidin fluorescence subsequent to its irreversible binding to a biotin moiety. GALA and its variants were biotinylated at the N- or C-terminus. BODIPY-avidin was either added externally or was pre-encapsulated in vesicles to assess the fraction of liposome-bound biotinylated GALA that exposed its labeled terminus to the external or internal side of the bilayer, respectively. Under conditions where most of the membrane-bound peptides were involved in transmembrane aggregates and formed aqueous pores (at a lipid/bound peptide molar ratio of 2500/1), the head-to-tail (N- to C-terminus) orientation of the membrane-inserted peptides was such that 3/4 of the peptides exposed their N-terminus on the inside of the vesicle and their C-terminus on the outside. Under conditions resulting in reduced pore formation (at higher lipid/peptide molar ratios), we observed an increase in the fraction of GALA termini exposed to the outside of the vesicle. These results are consistent with a model (Parente et al., Biochemistry, 29:8720, 1990) that requires a critical number of peptides (M) in an aggregate to form a transbilayer structure. When the peptides form an aggregate of size i, with i < M = 4 to 6, the orientation of the peptides is mostly parallel to the membrane surface, such that both termini of the biotinylated peptide are exposed to external BODIPY-avidin. This BODIPY-avidin/biotin binding assay should be useful to determine the orientation of other membrane-interacting molecules.  (+info)

Synthesis of 5-substituted 2'-deoxycytidine 5'-(alpha-P-borano)triphosphates, their incorporationinto DNA and effects on exonuclease. (4/933)

Direct PCR sequencing with boronated nucleotides provides an alternative to current PCR sequencing methods. The positions of boranophosphate-modified nucleotides incorporated randomly into DNA during PCR can be revealed directly by exonuclease digestion to give sequencing ladders. Cytosine nucleotides, however, are especially sensitive to exonuclease digestion and provide suboptimal sequencing ladders. Therefore, a series of 5-substituted analogs of 2'-deoxycytidine 5'-(alpha-P-borano)triphosphates (dCTPalphaB) were synthesized with the hope of increasing the nuclease resistance of deoxycytosine residues and thereby enhancing the deoxycytosine band intensities. These dCTP analogs contain a boranophosphate modification at the alpha-phosphate group in 2'-deoxycytidine 5'-triphosphate (dCTP) as well as a 5-methyl, 5-ethyl, 5-bromo or 5-iodo substitution for the 5-hydrogen of cytosine. The two diastereomers of each new dCTP derivative were separated by reverse phase HPLC. The first eluted diastereomer (putatively Rp) of each dCTP analog was a substrate for T7 DNA polymerase (Sequenase) and had an incorporation efficiency similar to normal dCTP and dCTPalphaB, with the 5-iodo-dCTPalphaB analog being the least efficient. Substitution at the C-5 position of cytosine by alkyl groups (ethyl and methyl) markedly enhanced the dCTPalphaB resistance towards exonuclease III (5-Et-dCTPalphaB >5-Me-dCTPalphaB >dCTPalphaB approximately 5-Br-dCTPalphaB >5-I-dCTPalphaB), thereby generating DNA sequences that better define the deoxycytosine positions. The introduction of modified dCTPalphaB should increase the utility of direct DNA sequencing with boronated nucleoside 5'-triphosphates.  (+info)

Tamoxifen inhibits acidification in cells independent of the estrogen receptor. (5/933)

Tamoxifen has been reported to have numerous physiological effects that are independent of the estrogen receptor, including sensitization of resistant tumor cells to many chemotherapeutic agents. Drug-resistant cells sequester weak base chemotherapeutics in acidic organelles away from their sites of action in the cytosol and nucleus. This work reports that tamoxifen causes redistribution of weak base chemotherapeutics from acidic organelles to the nucleus in drug-resistant cells. Agents that disrupt organelle acidification (e.g., monensin, bafilomycin A1) cause a similar redistribution. Measurement of cellular pH in several cell lines reveals that tamoxifen inhibits acidification of endosomes and lysosomes without affecting cytoplasmic pH. Similar to monensin, tamoxifen decreased the rate of vesicular transport though the recycling and secretory pathways. Organellar acidification is required for many cellular functions, and its disruption could account for many of the side effects of tamoxifen.  (+info)

BOCILLIN FL, a sensitive and commercially available reagent for detection of penicillin-binding proteins. (6/933)

We describe a new, sensitive, rapid, and nonradioactive method involving the use of the commercially available BOCILLIN FL, a fluorescent penicillin, as a labeling reagent for the detection and study of penicillin-binding proteins (PBPs). This method allowed rapid detection of 30 ng of a purified PBP protein under UV light and of 2 to 4 ng of the protein with the aid of a FluorImager. This method also allowed rapid determination of the PBP profiles of Escherichia coli, Pseudomonas aeruginosa, and Streptococcus pneumoniae. The PBP profiles obtained are virtually identical to those reported previously with 3H-, 14C-, or 125I-labeled penicillin. Using this method enabled us to determine the 50% inhibitory concentrations of the penicillin-sensitive and -resistant PBP2x proteins of S. pneumoniae for penicillin G, thereby allowing a direct evaluation of their relative affinities for penicillin G. Finally, this method also allowed us to compare relative affinities of a PBP2x protein for different beta-lactam antibiotics with the aid of fluorescence polarization technology and to monitor a PBP2x protein during purification.  (+info)

cAMP-dependent mobilization of intracellular Ca2+ stores by activation of ryanodine receptors in pancreatic beta-cells. A Ca2+ signaling system stimulated by the insulinotropic hormone glucagon-like peptide-1-(7-37). (7/933)

Glucagon-like peptide-1 (GLP-1) is an intestinally derived insulinotropic hormone currently under investigation for use as a novel therapeutic agent in the treatment of type 2 diabetes mellitus. In vitro studies of pancreatic islets of Langerhans demonstrated that GLP-1 interacts with specific beta-cell G protein-coupled receptors, thereby facilitating insulin exocytosis by raising intracellular levels of cAMP and Ca2+. Here we report that the stimulatory influence of GLP-1 on Ca2+ signaling results, in part, from cAMP-dependent mobilization of ryanodine-sensitive Ca2+ stores. Studies of human, rat, and mouse beta-cells demonstrate that the binding of a fluorescent derivative of ryanodine (BODIPY FL-X ryanodine) to its receptors is specific, reversible, and of high affinity. Rat islets and BTC3 insulinoma cells are shown by reverse transcriptase polymerase chain reaction analyses to express mRNA corresponding to the type 2 isoform of ryanodine receptor-intracellular Ca2+ release channel (RYR2). Single-cell measurements of [Ca2+]i using primary cultures of rat and human beta-cells indicate that GLP-1 facilitates Ca2+-induced Ca2+ release (CICR), whereby mobilization of Ca2+ stores is triggered by influx of Ca2+ through L-type Ca2+ channels. In these cells, GLP-1 is shown to interact with metabolism of D-glucose to produce a fast transient increase of [Ca2+]i. This effect is reproduced by 8-Br-cAMP, but is blocked by a GLP-1 receptor antagonist (exendin-(9-39)), a cAMP antagonist ((Rp)-cAMPS), an L-type Ca2+ channel antagonist (nimodipine), an antagonist of the sarco(endo)plasmic reticulum Ca2+ ATPase (thapsigargin), or by ryanodine. Characterization of the CICR mechanism by voltage clamp analysis also demonstrates a stimulation of Ca2+ release by caffeine. These findings provide new support for a model of beta-cell signal transduction whereby GLP-1 promotes CICR by sensitizing intracellular Ca2+ release channels to the stimulatory influence of cytosolic Ca2+.  (+info)

Interaction of diphtheria toxin T domain with molten globule-like proteins and its implications for translocation. (8/933)

The transmembrane (T) domain of diphtheria toxin has a critical role in the low pH-induced translocation of the catalytic domain (A chain) of the toxin across membranes. Here it is shown that at low pH, addition of proteins in a partly unfolded, molten globule-like conformation converted the T domain from a shallow membrane-inserted form to its transmembrane form. Fluorescence energy transfer demonstrated that molten globule-like proteins bound to the T domain. Thus, the T domain recognizes proteins that are partly unfolded and may function in translocation of the A chain as a transmembrane chaperone.  (+info)

Synonyms for Boron compounds in Free Thesaurus. Antonyms for Boron compounds. 2 synonyms for boron: atomic number 5, B. What are synonyms for Boron compounds?
2-Aminoethoxydiphenyl borate (2-APB) is a chemical that acts to inhibit both IP3 receptors[1] and TRP channels (although it activates TRPV1, TRPV2, & TRPV3 at higher concentrations).[2][3] In research it is used to manipulate intracellular release of calcium ions (Ca2+) and modify TRP channel activity, although the lack of specific effects make it less than ideal under some circumstances. Additionally, there is evidence that 2-APB acts directly to inhibit gap junctions made of connexin.[4] Increasing evidence showed that 2-APB is a powerful modifier of store-operated calcium channels (SOC) function, low concentration of 2-APB can enhance SOC while high concentration induces a transient increase followed by complete inhibition.[5][6][7] ...
Page contains details about BODIPY-labeled (PFS-b-PtBA|)-b-(PFS20-b-PMVSOH120)-b-(PFS-b-PtBA)/PFS-b-P2VP/PFS-b-PtBA supermicelles . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
A process for producing boron nitride using a boron containing ore as a starting material, by reacting naturally occurring ulexite with ammonia at high temperature, for a boron nitride with high impur
TY - JOUR. T1 - Membrane fluidity and lipid order in ternary giant unilamellar vesicles using a new bodipy-cholesterol derivative. AU - Ariola, Florly S.. AU - Li, Zaiguo. AU - Cornejo, Christine. AU - Bittman, Robert. AU - Heikal, Ahmed A.. N1 - Funding Information: This work was supported by National Science Foundation grant MCB0718741 (A.A.H.) and National Institutes of Health grant AG030949 (A.A.H.). Additional support was provided by National Institutes of Health grant HL-083187 (to R.B.), the Penn State Materials Research Institute, and the Penn State Materials Research Science and Engineering Center (supported by National Science Foundation grant DMR-0213623), and the Lehigh-Penn State Center for Optical Technologies (supported by the Commonwealth of Pennsylvania). PY - 2009. Y1 - 2009. N2 - Cholesterol-rich, liquid-ordered (Lo) domains are believed to be biologically relevant, and yet detailed knowledge about them, especially in live cells under physiological conditions, is elusive. ...
Compositions consisting of the reaction product or complex resulting from the mixing of a transition metal compound such as a tetraalkoxy titanium compound and a boron compound such as a trialkyl boron compound are useful in the preparation of catalysts for polymerizing α-olefins exhibiting ultra-high efficiencies at high polymerization temperatures.
The BODIPY® dyes are among the few fluorescent dyes to contain a boron atom as part of the core structure. Structures and applications of BODIPY® dyes.
Fluorescent probes are useful tools to investigate specific subcellular components in cells, tissues and organisms. A classic application of fluorescent ligands of a specific GPCR (G-protein coupled receptors) is the investigation of the receptor location, and, if their binding is reversible, it could provide pharmacological information such as affinity and proximity between interacting molecules. In cultured cell systems, methods based on fluorescence have permitted to observe the receptor cycling and the formation of oligomeric receptor complexes. In high throughput screening, fluorescent ligands represents a safer, more powerful and more versatile alternative to radioligands. [1] The introduction of the bulky fluorophore into a small molecule ligand could lead to deep modifications not only from a physicochemical point of view but also in its pharmacological properties. [2] In order to allow a correct interaction of the pharmacophore with its receptor, it is usually separated from the ...
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chemBlink provides information about CAS # 174672-06-1, 5-Chloro-1,3-dihydro-1-hydroxy-2,1-benzoxaborole, molecular formula: C7H6BClO2.
Fluorescent chromophores are compounds that can emit light under certain circumstances. They are useful to chemists as dyes or markers, and can be used for such applications as medical and biological imaging.. In a recent paper that appeared in the Journal of the American Chemical Society, Professor Victor Nemykin (Chemistry and Biochemistry, University of Minnesota Duluth) and his collaborators at the University of Akron (Akron, Ohio) discuss a new fluorescent chromophore, or fluorophore, called BOPHY. (BOPHY stands for bis(difluoroboron)1,2-bis(1H-pyrrol-2-yl)methylene)hydrazine.) This compound is related to a very successful class of fluorophores already in use, the boron dipyrromethene family of compounds. BOPHY is important because it can be produced with a simple two-step procedure, and it is highly fluorescent.. The researchers studied two compounds, the BOPHY chromophore and a tetrameythyl-substituted BOPHY analogue called Me4BOPHY. They investigated the absorption and emissions spectra ...
1-(bromomethyl)-2,3-difluoro-4-methylbenzene chemical properties, What are the chemical properties of 1-(bromomethyl)-2,3-difluoro-4-methylbenzene 261763-43-3, What are the physical properties of 1-(bromomethyl)-2,3-difluoro-4-methylbenzene ect.
bromozinc(1+),2,4-difluoro-1-methanidylbenzene 307496-26-0 NMR spectrum, bromozinc(1+),2,4-difluoro-1-methanidylbenzene H-NMR spectral analysis, bromozinc(1+),2,4-difluoro-1-methanidylbenzene C-NMR spectral analysis ect.
Asymmetric dimers of BODIPY dyes were synthesized from a,c-biladiene salts in good yields; this work constitutes a new versatile approach to the synthesis of BODIPY dyads, which display red-shifted absorptions and emissions in the visible spectral region, higher fluorescence quantum yields and larger Stokes
AbstractThree BODIPY ‐peptide conjugates designed to target the epidermal growth factor receptor (EGFR) at the extracellular domain were synthesized and their specificity for binding to EGFR was investigated. Peptide sequences containing seven amino acids, GLARLLT (2) and KLARLLT (3), and 13 amino acids, GYHWYGYTPQNVI (4), were conjugated to carboxyl BODIPY dye (1) by amide bond formation in up ...
CASTRO, SUSANA PATRICIA. Characterization of the Boron Doping Process UsingBoron Nitride Solid Source DiffusionThe purpose of this research has been to develop an optimum process for the borondoping of implants and polysilicon gates of metal-oxide-semiconductor (MOS) devices.An experimental design was constructed to determine the effects of diffusiontemperature, time, and ambient on characteristics of the doping process. A temperaturerange of 800 to 1000 degrees Celsius was studied with a diffusion time between 10 and60 minutes. Two diffusion ambients were used for doping processes, a pure nitrogenambient and a nitrogen-oxygen gaseous mixture. Device wafers were fabricated, and thetesting of MOS capacitors and van der Pauw test structures was performed to determinethe effect of diffusion conditions on flatband voltage and poly gate doping. Materialscharacterization techniques were used on monitor wafers for each diffusion process todetermine the wafer structure formed for each process and ...
Comprehensive supplier list for Cyclopropanesulfonamide,N-[3,4-difluoro-2-[(2-fluoro-4-iodophenyl)amino]phenyl]-N-methyl-,Cyclopropanesulfonamide,N-[3,4-difluoro-2-[(2-fluoro-4-methylphenyl)amino]phenyl]-
Boc Sciences offers cas 864759-63-7 3,5-DIFLUORO-4-CHLOROPHENYLBORONIC ACID in bulk,please inquire us to get a quote for 864759-63-7 3,5-DIFLUORO-4-CHLOROPHENYLBORONIC ACID.
By Heiner E. Goldbach, Benjavan Rerkasem, Monika A. Wimmer, Patrick H. Brown, Michel Thellier, R.W. Bell. The Boron 97 assembly used to be an excellent good fortune in summarising all contemporary advancements in simple and utilized study on borons functionality, specially in vegetation. New thoughts have on the grounds that been built and new perception has been won into the position of boron in plant and animal metabolism. however, there have been nonetheless plenty of open questions. the purpose of the current workshop held in Bonn as a satellite tv for pc assembly to the overseas Plant nutrients Colloquium was once hence to assemble all genuine details which has been received because the Boron 97 assembly and to bring together wisdom, either from animal and plant sciences. moreover, utilized elements needed to be addressed too, as theres an expanding expertise of boron deficiencies even in plants reminiscent of wheat, that have previously no longer been regarded as conscious of boron ...
2-APB was initially shown to be an antagonist for IP3 receptors, blocking IP3-induced calcium release in cerebellar microsomes with an IC50 of 42 μM (Maruyama et al., 1997) and blocking the IP3 receptor in intact cells at 75 μM (Ma et al., 2000). More recent studies have shown that 2-APB is an even more potent blocker for store-operated calcium entry than for IP3-induced calcium release (for review, see Bootman et al., 2002). Moreover, 2-APB at 100 μM concentrations has been found to block volume-regulated anion channels (Lemonnier et al., 2004), to cause mitochondrial swelling (Peppiatt et al., 2003), and to activate calcium permeable cation channels (Braun et al., 2003). In addition, 2-APB was recently reported to exert opposite effects on members of the TRP gene family, decreasing activity of TRP5 and TRP6 at 20 μM (Xu et al., 2005) and activating TRPV1, TRPV2, and TRPV3 at higher concentrations (Hu et al., 2004).. A recent study revealed an unexpected inhibitory action of 2-APB on gap ...
Structure, properties, spectra, suppliers and links for: 7-(3-Amino-3-methyl-1-azetidinyl)-1-cyclopropyl-6,8-difluoro-4-oxo-1,4-dihydro-3-quinolinecarbox.
A new BODIPY derivative beating piperazine group was synthesized and its fluorescent changes towards metal ions as well as pH are studied. The title compound displayed a moderate selectivity for Hg2+ among the metal ions examined ...
MolCore offers CAS No.2266-48-0, Ethyl 2,2-difluoro-3-oxobutanoate for your research needs.Find product specific information including MFCD00190633,2266-48-0 MSDS,Price,Custom Synthesis.
Buy high quality (S)-9,10-Difluoro-3-methyl-2,3,5,6-tetrahydro-7H-pyrido[1,2,3-de]-1,4-benzoxazin-7-one 1798902-76-7 from toronto research chemicals Inc.
In the present study we show that 2-APB is an efficient inhibitor of Drosophila phototransduction, operating both in intact cells and in isolated ommatidia, and that this inhibition partially reverses when the inhibitor is removed. The great interest in 2-APB arises from its reported function as a powerful probe for assessing involvement of InsP3 receptors in cell signaling (Maruyama et al., 1997; Ma et al., 2000). Indeed, the reversible inhibition of InsP3-induced current oscillations in Xenopus oocytes strongly supports previous studies showing that 2-APB blocks Ca2+ release from InsP3-sensitive Ca2+ stores (Maruyama et al., 1997). Furthermore, the failure of 2-APB to block the Ca2+-activated surface membrane Cl− channels while it suppresses the InsP3-induced activity indicates that the action of 2-APB is confined to the signaling stages downstream of InsP3 production, but upstream of the Ca2+ release-activated processes.. The inhibitory effect of 2-APB on ICl,Ca-induced by Ca2+ store ...
Hexagonal boron nitride is a suitable host for single-photon emitters and single-spin centers. Strong single-photon emission has been observed, but the source was not identified. Based on advanced first-principles simulations, the origins have now been pinpointed: the 2 eV emission has been attributed to boron dangling bonds, and 4 eV emission to carbon-carbon dimers. ...
2) If you are unable to determine the boron levels in the soil (technically determination of bio availability boron it is one thing to have a trace element in the soil, its another to have it available for plants to use you need to make sure boron is in your multi tablet ...
Complexation of iminocoumarin derivatives with BF3·OEt2 provides novel N⁁N boron(iii) dyes exhibiting high absorption coefficients and quantum yields as great as 81%. The excellent chemical stability of these dyes enables the grafting of Boranil or Bodipy units to give derivatives in which the Borico subunit
As well as forming triple bonds, boron atoms can now link up chains - in carbon that makes proteins, plastics and alcohols possible
[100 Pages Report] Check for Discount on United States Boron Containing Phenolic Resin Market Report 2017 report by QYResearch Group. In this report, the United States Boron Containing Phenolic Resin...
1-Oleoyl-2-(6-((4,4-difluoro-1,3-dimethyl-5-(4-methoxyphenyl)-4-bora-3a,4a-Diaza-s-indacene-2-propionyl)amino)hexanoyl)-sn-glycero-3- ...
Boron is critical to the growth and health of crops but is needed in small amounts, making it crucial for boron to be delivered evenly in the field.
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View Notes - 25 from CHEM 1000 at Lethbridge College. Chemistry 1000 Lecture 25: Group 14 and Boron Marc R. Roussel Group 14 In this group again, we see a full range of nonmetallic to metallic
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Suppliers List, E-mail/RFQ Form, Molecular Structure, Weight, Formula, IUPAC, Synonyms for Boron Trifluoride-Acetic Acid Complex (CAS No. 373-61-5)
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Now that the fall semester is finally here, I will hopefully have more time to write my posts. Today is all about Diego Diaz and the cool chemistry we recently published in Angewandte (http://onlinelibrary.wiley.com/doi/10.1002/anie.201605754/abstract). Diego did his undergraduate work with Patrick Gunning and came to do PhD in my lab in the Fall of 2014. He quickly…
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TY - JOUR. T1 - Morphology dependence of radial elasticity in multiwalled boron nitride nanotubes. AU - Chiu, H. C.. AU - Kim, S.. AU - Klinke, C.. AU - Riedo, E.. PY - 2012/9/3. Y1 - 2012/9/3. N2 - We report on the measurement of the radial modulus of boron nitride nanotubes (BN-NTs) with various sizes and thicknesses. These BN-NTs are radially much stiffer than previously reported thinner and smaller BN-NTs. Here, we show the key role of the morphology of the nanotubes in determining their radial rigidity; in particular, we find that the external and internal radii, R ext and R int, have a stronger influence on the radial modulus than the nanotubes thickness. The radial modulus decreases nonlinearly with 1/R ext until reaching, for a large number of layers and a large radius, the transverse elastic modulus of bulk h-BN.. AB - We report on the measurement of the radial modulus of boron nitride nanotubes (BN-NTs) with various sizes and thicknesses. These BN-NTs are radially much stiffer than ...
TY - JOUR. T1 - BODIPY-labeled fluorescent aptamer sensors for turn-on sensing of interferon-gamma and adenine compounds on cells. AU - Tsuchiya, Akira. AU - Hashim, Siti N.. AU - Ise, Shoko. AU - Furuhata, Takafumi. AU - Kawai, Kiyohiko. AU - Wakabayashi, Rie. AU - Goto, Masahiro. AU - Kamiya, Noriho. AU - Sando, Shinsuke. PY - 2016/1/1. Y1 - 2016/1/1. N2 - An on-cell aptamer sensor has the potential to reveal cell-cell communications by signalling molecules. We attempted to design new fluorescent aptamer sensors for the sensing of IFN-? and adenine compounds on cells. BODIPY-labeled external quencher-free aptamer sensors have allowed a turn-on detection of the target molecule with improved off/on efficiency.. AB - An on-cell aptamer sensor has the potential to reveal cell-cell communications by signalling molecules. We attempted to design new fluorescent aptamer sensors for the sensing of IFN-? and adenine compounds on cells. BODIPY-labeled external quencher-free aptamer sensors have allowed a ...
This new market research report forecasts on Wurtzite Boron Nitride Market providing complete market figures, consisting market size and estimation by Wurtzite Boron Nitride Market application and products depending upon geographical location for the forecasting period 2017 to 2025. Further, the Wurtzite Boron Nitride Market research report study also encompasses complete industry background, with Wurtzite Boron Nitride Market drivers, competitive market dynamics, market restraints, market growth opportunities, industry challenges and critical success factors (CSFs). The Wurtzite Boron Nitride Market research report examines top industry competitors, offering organization market share analysis and detailed outlines of these firms, with product benchmarking.. Browse Full Report Visit - http://bit.ly/2eO1ezQ. Reasons to Buy This Report :. ...
Boron nitride aerogel is an aerogel made of highly porous boron nitride (BN). It typically consists of a mixture of deformed boron nitride nanotubes and nanosheets. It can have a density as low as 0.6 mg/cm3 and a specific surface area as high as 1050 m2/g, and therefore has potential applications as an absorbent, catalyst support and gas storage medium. BN aerogels are highly hydrophobic and can absorb up to 160 times their mass in oil. They are resistant to oxidation in air at temperatures up to 1200 °C, and hence can be reused after the absorbed oil is burned out by flame. BN aerogels can be prepared by template-assisted chemical vapor deposition at a temperature ~900 °C using borazine as the feed gas. Alternatively it can be produced by ball milling h-BN powder, ultrasonically dispersing it in water, and freeze-drying the dispersion. Song, Yangxi; Li, Bin; Yang, Siwei; Ding, Guqiao; Zhang, Changrui; Xie, Xiaoming (2015). Ultralight boron nitride aerogels via template-assisted chemical ...
Our unique plasma synthesis process produces high quality BNNT material. This process does not use consumable electrodes or metallic catalysts, and is therefore completely free from metallic contaminants.. Our BNNT purified is produced using a proprietary process which removes free Boron. It also offers a high concentration of boron nitride nanotubes with small diameter, high crystallinity and high purity.. ...
In the present work, Boron nitride nanotubes (BNNTs) were synthesized and submitted to a functionalization process (coating) with glucosamine. The nanostructures were physicochemical and morphologically characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Raman Spectroscopy and Photon Correlation Spectroscopy (PCS). Furthermore, in vitro tests were conducted to evaluate the cytocompatibility of the nanostructures. The results revealed that nanotubes presented size, polydispersity index and Zeta potential adequate to applied in vivo studies. The cytocompatibility test were conducted in normal MRC-5 fibroblast lung cells, through MTT and DAPI assays. The results revealed, in tested concentrations (0.1; 10; 50; 100; 200 µ/mL), that BNNTs no presented a cytotoxic profile and negligible DNA changes. Considering the results obtained, the BNNTs showed adequate characteristic to be applied as novel carrier system for radioisotope and drug delivery.
A plasma treatment has been used to modify the surface of BNNTs. In one example, the surface of the BNNT has been modified using ammonia plasma to include amine functional groups. Amine functionalization allows BNNTs to be soluble in chloroform, which had not been possible previously. Further functionalization of amine-functionalized BNNTs with thiol-terminated organic molecules has also been demonstrated. Gold nanoparticles have been self-assembled at the surface of both amine- and thiol-functionalized boron nitride Nanotubes (BNNTs) in solution. This approach constitutes a basis for the preparation of highly functionalized BNNTs and for their utilization as nanoscale templates for assembly and integration with other nanoscale materials.
In the present work, based on extensive fully atomistic molecular dynamics simulations, we discuss the dynamics of neon atoms oscillating inside (5,5) single-walled carbon nanotubes (CNTs) and boron nitride nanotubes (BNNTs). Our results show that sustained high-frequency oscillatory regimes are possible for a large range of temperatures. Our results also show that the general features of the oscillations are quite similar to those observed in CNT and BNNT, in contrast with some speculations in previous works in the literature about the importance of broken symmetry and chirality exhibited by BNNTs ...
M. Yamaguchi,A. Pakdel,C. Y. Zhi,et al. Utilization Of Multiwalled Boron Nitride Nanotubes For The Reinforcement Of Lightweight Aluminum Ribbons[J]. Nanoscale Research Letters,2013,8 ...
Fingerprint Dive into the research topics of The conjugation of diphtheria toxin T domain to poly(ethylenimine) based vectors for enhanced endosomal escape during gene transfection. Together they form a unique fingerprint. ...
TY - JOUR. T1 - An intensified π-hole in beryllium-doped boron nitride meshes. T2 - its determinant role in CO2 conversion into hydrocarbon fuels. AU - Azofra, Luis Miguel. AU - Macfarlane, Douglas. AU - Sun, Chenghua. PY - 2016/2/28. Y1 - 2016/2/28. N2 - DFT investigations on beryllium-doped boron nitride meshes or sheets (BNs) predict the existence of a very reactive kind of novel material capable of spontaneously reducing the first hydrogenation step in the CO2 conversion mechanism. This impressive behaviour appears as a result of the very deep π-hole generated by the beryllium moieties, and also determines its selectivity towards the production of CH4.. AB - DFT investigations on beryllium-doped boron nitride meshes or sheets (BNs) predict the existence of a very reactive kind of novel material capable of spontaneously reducing the first hydrogenation step in the CO2 conversion mechanism. This impressive behaviour appears as a result of the very deep π-hole generated by the beryllium ...
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|p|Ab-initio calculations using density functional theory (DFT) are used to investigate the non-covalent interactions between single wall armchair boron nitride nanotubes (BNNTs) with open ends and several heterocyclic molecules: thiophene (T; C|sub|4|/sub|H|sub|4|/sub|S), benzothiophene (BT; C8H6S) and dibenzothiophene (DBT; C|sub|12|/sub|H|sub|8|/sub|S). In the armchair model the nanotubes exhibit (n, n) chirality; here we consider n = 5. The exchange-correlation energies are treated according to the Hamprecht-Cohen-Tozer-Handy functional in the generalized gradient approximation (HCTH-GGA). A base function with double polarization is used. The geometry optimization of (5,5) BNNT-X; X = T, BT and DBT has been carried out using the minimum energy criterion in 5 different configurations of the molecules adsorbed on the nanotube. Our computer simulations have found that the preferential adsorption site of the molecule on the nanotube surface is the parallel configuration for BT and DBT, and at one
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During intoxication of a cell, the translocation (T) domain of the diphtheria toxin helps the passage of the catalytic domain across the membrane of the
The present invention provides wood preservative and flame retardant compositions having low leachability comprising micronized boron compounds and, optionally, one or more organic biocides which may be micronized. Also provided is a method for applying the composition to wood and wood products comprising impregnating the wood with the composition.
A process for growing an electrically conductive metalloid thin film on a substrate with a chemical vapor deposition process. A metal source material and a reducing agent capable of reducing the metal source material to a reduced state are vaporized and fed into a reaction space, where the metal source material and the reducing agent are contacted with the substrate. The reducing agent is a boron compound having at least one boron-carbon bond, and the boron compound forms gaseous by-products when reacted with the metal source material. Generally, the boron compound is an alkylboron compound with 0-3 halogen groups attached to the boron. The metal source material and the reducing agent may be fed continuously or in pulses during the deposition process.
In this study, magnesium composites with nano-size boron nitride (BN) particulates of varying contents were synthesized using the powder metallurgy (PM) technique incorporating microwave-assisted two-directional sintering followed by hot extrusion. The effect of nano-BN addition on the microstructural and the mechanical behavior of the developed Mg/BN composites were studied in comparison with pure Mg using the structure-property correlation. Microstructural characterization revealed uniform distribution of nano-BN particulates and marginal grain refinement. The coefficient of thermal expansion (CTE) value of the magnesium matrix was improved with the addition of nano-sized BN particulates. The results of XRD studies indicate basal texture weakening with an increase in nano-BN addition. The composites showed improved mechanical properties measured under micro-indentation, tension and compression loading. While the tensile yield strength improvement was marginal, a significant increase in compressive
Novel boron nitride agglomerated powders are provided having controlled density and fracture strength features. In addition methods for producing same are provided. One method calls for providing a fe
Inquire for United States Rhombohedral Boron Nitride Market Competitive Analysis, Trends and Forecast till 2022, with free sample copy of the report.
Lookchem Provide Cas No.10043-11-5 Basic information: Properties,Safety Data,Sds and Other Datebase. We also Provide Trading Suppliers & Manufacture for 10043-11-5 Boron nitride.
Science & Technology, Life Sciences & Biomedicine, Cell Biology, CELL BIOLOGY, BODIPY, fatty acid-binding protein, FABP, fluorescence, microscopy, CELL-LINE CACO-2, SPECTRAL PROPERTIES, CRYSTAL-STRUCTURE, LIVER, TRAFFICKING, ENDOCYTOSIS, INTESTINE, TRANSPORT, MEMBRANES, PROBES ...
Generally, high-temperature applications require ceramic dielectrics, but these are heavy and brittle, according to Penn State professor of materials science and engineering, Qing Wang, who led the research. Polymer dielectrics are lighter, but have tended to degrade in performance or melt at high temperatures, necessitating a cooling system, which adds further weight and complexity.. Wang and his team used boron nitride, a two-dimensional substance similar in structure to graphene which has been shown to have dielectric properties, in the form of nanosheets about 2nm thick and 400nm across as the active agent in a cross-linked polymer nanocomposite with benzenecyclobutene, a polymer used in electronics. The composite can be made by just mixing the boron nitride and the polymer precursor, then curing with heat or light to create the cross-linked structure. Because the nanosheets are so small, the polymer remains flexible. The team claims in a paper in Nature that the polymer can be ...
Boron is needed by life. In 2013, a hypothesis suggested it was possible that boron and molybdenum catalyzed the production of RNA on Mars with life being transported to Earth via a meteorite around 3 billion years ago.[115]. There exists one known boron-containing natural antibiotic, boromycin, isolated from streptomyces.[116][117]. Boron is an essential plant nutrient, required primarily for maintaining the integrity of cell walls. However, high soil concentrations of , 1.0 ppm lead to marginal and tip necrosis in leaves as well as poor overall growth performance. Levels as low as 0.8 ppm produce these same symptoms in plants that are particularly sensitive to boron in the soil. Nearly all plants, even those somewhat tolerant of soil boron, will show at least some symptoms of boron toxicity when soil boron content is greater than 1.8 ppm. When this content exceeds 2.0 ppm, few plants will perform well and some may not survive. When boron levels in plant tissue exceed 200 ppm, symptoms of boron ...
Artificial Light-Harvesting Arrays: Electronic Energy Migration and Trapping on a Sphere and between Spheres A sophisticated model of the natural light-harvesting antenna has been devised by decorating a C60 hexa-adduct with ten yellow and two blue boron dipyrromethene (Bodipy) dyes in such a way that the dyes retain their individuality and assist solubility of the fullerene. Unusually, the fullerene core is a poor electron acceptor and does not enter into light-induced electron-transfer reactions with the appended dyes, but ineffective electronic energy transfer from the excited-state dye to the C60 residue competes with fluorescence from the yellow dye. Intraparticle electronic energy transfer from yellow to blue dyes can be followed by steady-state and time-resolved fluorescence spectroscopy and by excitation spectra for isolated C60 nanoparticles dissolved in dioxane at 293 K and at 77 K. Full article ...
This discovery may eventually lead to new superstrong materials. However, both wurtzite boron nitride and lonsdaleite are difficult to synthesize in large quantities, so practical applications using these stronger materials are not yet feasible (methods for synthesizing nanocomposites containing lonsdaleite and wurtzite boron nitride are under development to assist in further research). In addition, many practical uses of hard materials require other qualities such as thermal stability at high temperatures. Conductivity, superconductivity, and magnetism are also desirable qualities for many applications of superstrong materials. The pressurized wurtzite boron nitride and lonsdaleite may or may not meet these other requirements. ...
In 1947, while teaching a graduate course in physics at the University of Chicago, Enrico Fermi famously posed the question, What is the deepest hole that may be dug into the Earth? Since it was an experiment that had never been done, he didnt have the answer, but it sure got the students thinking.. The first thing youd need is a material that can penetrate the very hard, very high-pressure, very hot deepest mantle. In the movie The Core, an ingenious inventor, Edward Brazzleton (played by Delroy Lindo), comes up with superhard, refractory unobtainium, based on boron nitride, to sheath a drill ship that can propel itself through Earths mantle, while not baking the people inside it to a crisp.. Personally I think the script writers missed a great opportunity by not naming unobtainium, which obviously was obtainable, brazzletonite instead.. Everybody knows that boron nitride crystals are six times harder than diamond, Brazzleton says. Well… boron nitride is certainly an interesting ...
Boron compounds have been used extensively in organic synthesis for more than sixty years. Some of the best known reactions in synthesis, such as the Suzuki-Miyaura cross-coupling and the hydroboration reaction, involve boron compounds. Several natural products containing boron have been isolated in the last fifty years, including ionophoric macrodiolide antibiotics boromycin, borophycin, aplasmomycins A, B, and C, and tartrolons B, C, and E, as well as autoinducer-2.
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Fluorescence imaging is a powerful tool in biomedical research. It has been frequently used to uncover or better understand physiological mechanisms in disease-related processes such as cancer. The majority of chromophores used for imaging are based on a 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) scaffold. However, their applications are limited due to their poor water solubility as well as poor cancer cell selectivity. To circumvent these drawbacks, we present herein the use of bis(dipyrrinato)zinc(II) complexes. As this class of compounds is associated with a quenching effect of the excited state in water, the lead compound of this study (3) was encapsulated in a polymer matrix with biotin as a targeting moiety (3-NP). This encapsulation improved the water solubility, overcame the quenching effects in water, as well as allowed selective accumulation in the lysosomes with a bright fluorescence signal in monolayer cells as well as 3D multicellular tumor spheroids (MCTS). As a benefit ...
Researchers have developed an innovative use of the nanomaterial boron nitride nanotubes (BNNT) to improve the performance of Li–S batteries.
A method for producing products for treating wood and other cellulose products to improve the flame retardancy, and the insecticidal and fungicidal properties of the products. A calcium borate ore, such as colemanite, is reacted first with an acid such as acetic acid. The reaction products, including calcium in solution, are then treated with ammonia, producing ammonium pentaborate. The resulting composition is applied to the wood or other cellulose products by methods such as pressure, diffusion, or immersion and/or dipping treatment. The products have superior leach resistance to water when compared to conventional treatment compounds.
Boron is the most widely deficient minor nutrient in vegetable crop soils. It is needed for protein synthesis and increases flower set, crop yield and quality. In combination with adequate phosphorus, boron increases pollination, fruit set and seed development. Boron deficiency causes growth reduction at the growing tips. Plants have small, crinkled, deformed leaves with large areas of discoloration. Boron deficiency is often caused by application of too much lime. While boron is essential for root growth and fruit development, it can become toxic if over-applied. Always test the soil and apply only the recommended amount. The deformed fruit of these strawberries is due to a deficiency of boron, which also deforms the plants leaves and roots. Bushy, drooping, crinkled leaves indicate boron deficiency in potato plants.
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TY - JOUR. T1 - NaBC1 is a ubiquitous electrogenic Na+-coupled borate transporter essential for cellular boron homeostasis and cell growth and proliferation. AU - Park, Meeyoung. AU - Li, Qin. AU - Shcheynikov, Nikolay. AU - Zeng, Weizong. AU - Muallem, Shmuel. PY - 2004/11/5. Y1 - 2004/11/5. N2 - Boron is a vital micronutrient in plants and may be essential for animal growth and development. Whereas the role of boron in the life cycle of plants is well documented, nothing is known about boron homeostasis and function in animal cells. NaBC1, the mammalian homolog of AtBor1, is a borate transporter. In the absence of borate, NaBC1 conducts Na+ and OH- (H+), while in the presence of borate, NaBC1 functions as an electrogenic, voltage-regulated, Na+-coupled B(OH)4 - transporter. At low concentrations, borate activated the MAPK pathway to stimulate cell growth and proliferation, and at high concentrations, it was toxic. Accordingly, overexpression of NaBC1 shifted both effects of borate to the left, ...
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The aim of this work was to develop a chemical vapour deposition process and understand the growth of sp2 hybridised Boron Nitride (sp2-BN). Thus, the growth on different substrates together with the variation of growth parameters was investigated in details and is presented in the papers included in this thesis. Deposited films of sp2-BN were characterised with the purpose to determine optimal deposition process parameters for the growth of high crystal quality thin films with further investigations of chemical composition, morphology and other properties important for the implementation of this material towards electronic, optoelectronic devices and devices based on graphene/BN heterostructures.. For the growth of sp2-BN triethyl boron and ammonia were employed as B and N precursors, respectively. Pure H2 as carrier gas is found to be necessary for the growth of crystalline sp2-BN. Addition of small amount of silane to the gas mixture improves the crystalline quality of the growing sp2-BN ...
Using a combination of gain- and loss-of-function experiments, we showed that CD36 is downstream of Meox2/Tcf15-mediated uptake of FFAs originating from both bovine serum albumin conjugates and VLDL particles in heart ECs. The high CD36 expression levels in comparison with other transporter genes in heart ECs further support its important role in cardiac FA uptake. Nevertheless, although, in our DiI-VLDL assay, CD36s contribution to Meox2/Tcf15-driven FFA uptake could have been underestimated by simultaneous detection of particle uptake, the fact that CD36 knockdown only partially impaired Meox2/Tcf15-driven uptake of BODIPY-labeled FFAs suggests the existence of other Meox2/Tcf15 downstream mediators or the occurrence of compensatory mechanisms upon CD36 knockdown.. In Meox2+/−:Tcf15+/− heart ECs, Fatp3, a FA transporter regulated by the paracrine VEGF-B,21 was increased, but this was not sufficient to fully compensate for the partial loss of CD36 induced by Meox2+Tcf15 haplodeficiency, ...
Reagents and antibodies. All pharmacologic agents were purchased from Sigma (St. Louis, MO) unless stated otherwise. Rhodamine and Bodipy-labeled α-bungarotoxin were from Molecular Probes (Eugene, OR); secondary antibodies coupled with either Cy2 or Cy3 were from Amersham Biosciences (Piscataway, NJ). Affinity-purified polyclonal antiserum against the extracellular domain of NRG (183N) was prepared as described previously (Loeb et al., 1999). Monoclonal antibodies against SV2 were a generous gift from Kathy Buckley (Harvard Medical School, Boston, MA), and those against agrin (6D2) were a generous gift from Willi Halfter (University of Pittsburgh, Pittsburgh, PA). Mouse monoclonal IgG supernatant against neurofilaments (RT-97) was obtained from the Developmental Studies Hybridoma Bank at the University of Iowa (Iowa City, IA) under contract N01-HD-7-3263 from the National Institute of Child Health and Human Development. BDNF, NT-3, and GDNF were generous gifts from Amgen (Thousand Oaks, CA) and ...
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1,2-Difluoro-3-(4-heptylcyclohexen-1-yl)benzene | C19H26F2 | CID 19107864 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
... s are seen in many boron compounds, such as diborane (B2H6). The monomer BH3 is unstable since ... A B−H−B 3-center-2-electron bond is formed when a boron atom shares electrons with a B−H bond on another boron atom. In ... This type of bond also occurs in carbon compounds, where it is sometimes referred to as hyperconjugation; another name for ... each boron is surrounded by a stable octet. ... Boron compounds[edit]. Resonance structures of 3c-2e bond in ...
"Boron Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH.CS1 maint: uses authors parameter (link) ... Boron and compounds MSDS for Trimethyl Borate WebBook page for BC3H9O3. ... Trimethyl borate is the organoboron compound with the formula B(OCH3)3. It is a colourless liquid that burns with a green flame ... It is a weak Lewis acid (AN = 23, Gutmann-Beckett method). Borate esters are prepared by heating boric acid or related boron ...
Robert Brotherton; Joseph Weber; Clarence Guibert & John Little (2000). "Boron Compounds". Ullmann's Encyclopedia of Industrial ... Because LiBF4 and other alkali-metal salts thermally decompose to evolve boron trifluoride, the salt is commonly used as a ... Lithium tetrafluoroborate is an inorganic compound with the formula LiBF4. It is a white crystalline powder. It has been ...
Robert J. Brotherton, C. Joseph Weber, Clarence R. Guibert, John L. Little (2000). "Boron Compounds". Ullmann's Encyclopedia of ... doi: 10.1016/0032-3861(96)00323-0 National Pollutant Inventory - Boron and compounds WebBook page for BC6H15O3. ... "A convenient NMR method for the measurement of Lewis acidity at boron centres: correlation of reaction rates of Lewis acid ...
... burning with an apple-green flame characteristic for boron compounds. Thus, it is typically handled and stored using air-free ... "Boron Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Wiley-VCH. doi:10.1002/14356007.a04_309. ISBN 3527306730. " ... Triethylborane (TEB), also called triethylboron, is an organoborane (a compound with a B-C bond). It is a colorless pyrophoric ... As an initiator, it can replace some organotin compounds. It reacts with metal enolates, yielding enoxytriethylborates that can ...
2010). "Boron Cluster Compounds". Inorganic Syntheses. pp. 56-66. doi:10.1002/9780470651568.ch2. ISBN 978-0-470-65156-8. ... The dodecaborate(12) anion, [B12H12]2−, has the structure of a regular icosahedron of boron atoms, with each boron atom being ... The first boron atom is numbered 1, then the closest ring of five atoms around it is numbered anticlockwise from 2 to 6. The ... For applications in boron neutron capture therapy, derivatives of closo-dodecaborate increase the specificity of neutron ...
"Boron and Compounds". National Pollutant Inventory. Australian Government. "Decaborane". Organic Chemistry Portal. "Boron ... This white crystalline compound is one of the principal boron hydride clusters, both as a reference structure and as a ... Each boron has one "radial" hydride, and four boron atoms near the open part of the cluster feature extra hydrides. In the ... In fusion research, the neutron-absorbing nature of boron has led to the use of these thin boron-rich films to "boronize" the ...
This planar compound has idealized C2V molecular symmetry. The boron atom is sp2-hybridized and contains an empty p-orbital. ... ISBN 978-3-540-59182-5 Lappert, M. F. (1956). "Organic Compounds Of Boron". Chem. Rev. 56 (5): 959-1064. doi:10.1021/ ... Ainley, A. D.; Challenger, F. (1930). "Studies of the boron-carbon linkage. Part I. The oxidation and nitration of phenylboric ... Mikhailov, B. M.; Bubnov, Y. N. Organoboron Compounds in Organic Synthesis, Harwood Academics, Glasgow, 1984. ISBN 3-7186-0113- ...
Broere, Daniël L. J.; Holland, Patrick L. (2018-02-23). "Boron compounds tackle dinitrogen". Science. 359 (6378): 871. Bibcode: ... The resulting dianion was subsequently oxidized to a neutral compound, and reduced using water. In rare cases, metals react ... Although nitrogen fixation is usually associated with transition metal complexes, a boron-based system has been described. One ...
Low-energy σ-donation orbitals from the base to boron are present in these compounds, and the π-interaction from boron's lone ... A similar species with a boron-boron single bond was also observed. The diborene has an incredibly short boron-boron bond ... Some borylenes such as boron monofluoride (BF) and boron monohydride (BH) the parent compound also known simply as borylene, ... A borylene is the boron analogue of a carbene. The general structure is R-B: with R an organic residue and B a boron atom with ...
doi:10.1002/zaac.19814821124 Brotherton, R. J.; Weber, C. J.; Guibert, C. R.; Little, J. L. "Boron Compounds". Ullmann's ... Three equivalents of HF react to give the intermediate boron trifluoride and the fourth gives fluoroboric acid: B(OH)3 + 4 HF ... Pure HBF4 has been described as a "nonexistent compound", as a sufficiently 'naked' proton is expected to abstract a fluoride ... Perry, D. L.; Phillips, S. L. (1995). Handbook of Inorganic Compounds (1st ed.). Boca Raton: CRC Press. p. 1203. ISBN ...
Ananthanarayanan, K.P.; Gielisse, P.J.; Choudry, A. (1974). "Boron Compounds for Thermal Neutron Detection". Nucl. Instrum. ... neutron detectors containing boron may alternately use boron trifluoride (BF3) enriched to 96% boron-10 (natural boron is 20% ... The sensitivity of this detector is around 35-40 CPS/nv whereas that of Boron lined is about 4 CPS/nv. This is because in Boron ... These boron-based films are often grown upon n-type Si substrates, which can form a pn junction with the Si and, therefore, ...
Altschuller, Aubrey P. (4 October 1955). "Calculated Heats of Formation and Combustion of Boron Compounds (Boron, Hydrogen, ... Bell, R. P.; Emeléus, H. J. (1948). "The boron hydrides and related compounds". Quarterly Reviews, Chemical Society. 2 (2): 132 ... Trimethyldiborane has two methyl groups on one boron atom, and one methyl and a hydrogen on the second boron atom. A bridge of ... The chemistry of boron. Part VI. New preparative methods and decomposition studies relating to methyldiboranes". Journal of the ...
Bell, R. P.; Emeléus, H. J. (1948). "The Boron Hydrides and Related Compounds". Quarterly Reviews, Chemical Society. 2 (2): 132 ... Shore, S. G. (1975). "Nido and Arachno Boron Hydrides". In Muetterties, Earl L (ed.). Boron Hydride Chemistry. Academic Press. ... Adams, Roy M. (September 1959). "Organoboron Compounds" (PDF). Metal-Organic Compounds. Advances in Chemistry. 23. p. 92. doi: ... The Chemistry of Boron. Part VI. New Preparative Methods and Decomposition Studies Relating to Methyldiboranes". Journal of the ...
Altschuller, Aubrey P. (4 October 1955). "Calculated Heats of Formation and Combustion of Boron Compounds (Boron, Hydrogen, ... Bell, R. P.; Emeléus, H. J. (1948). "The boron hydrides and related compounds". Quarterly Reviews, Chemical Society. 2 (2): 132 ... The chemistry of boron. Part VI. New preparative methods and decomposition studies relating to methyldiboranes". Journal of the ... 1,1-Dimethyldiborane is the organoboron compound with the formula (CH3)2B(μ-H)2BH2. A pair of related 1,2-dimethyldiboranes are ...
"The Boron Hydrides and Related Compounds". Quarterly Reviews, Chemical Society. 2 (2): 132. doi:10.1039/QR9480200132.. The ... G. G. Graf (2005). "Tin, Tin Alloys, and Tin Compounds". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. ...
With 7-membered rings, the heteroatom must be able to provide an empty pi orbital (e.g., boron) for "normal" aromatic ... Although heterocyclic chemical compounds may be inorganic compounds or organic compounds, most contain at least one carbon. ... A heterocyclic compound or ring structure is a cyclic compound that has atoms of at least two different elements as members of ... Heterocyclic compounds are pervasive in many areas of life sciences and technology.[9] Many drugs are heterocyclic compounds.[ ...
Brown, Charles A.; Muetterties, Earl L.; Rochow, Eugene G. Boron-nitrogen systems. III. Addition compounds of boron trifluoride ... Muetterties's work on boron hydride clusters led to the work on several polyhedral borane anions such as B12H122−. He was an ... He also edited books on boron chemistry and transition-metal hydrides and wrote reviews on complexes with unusual coordination ... In collaboration with William D. Phillips he exploited NMR for study of dynamic processes in inorganic fluoride compounds. ...
Ionic boron compounds. U.S. Patent 3390966 (1968). Knoth, Walter H., Jr. Neutral and singly charged derivatives of decaboranes ... The discovery that tetrafluoroethylene would cyclize with a wide variety of compounds to give fluorinated compounds opened up ... Urea and uracil compounds discovered in CRD were potent and selective herbicides, propelling DuPont into the agricultural ... Synthesis of new organic and inorganic compounds accounted for about half of the total research. When the National Institute of ...
With N. M. Gupta and R. C. Ray.) Some compounds of boron, hydrogen and oxygen. London: H. K. Lewis & Co. Ltd. 1918. On the ...
G. S. Pawley (1966). "Further Refinements of Some Rigid Boron Compounds". Acta Crystallogr. 20: 631-638. doi:10.1107/ ... C-functionalized carboranes represent a source of boron for boron neutron capture therapy. Some metal complexes exhibit ... "Boron in drug discovery: carboranes as unique pharmacophores in biologically active compounds". Chem. Rev. 111: 5701-5722. doi: ... The compound H(CHB11Cl11) is a superacid, forming an isolable salt with protonated benzene, C6H+ 7. It protonates fullerene, ...
... on boron, silicon, & their compounds; and on meteoric stones ... including a distinction of compounds into colloids & ...
Compounds of boron, silicon, arsenic, and antimony have been used as flame retardants. Boron, in the form of borax, has been ... Boron can form intermetallic compounds and alloys with such metals of the composition MnB, if n > 2. Ferroboron (15% boron) is ... Arsenic and antimony compounds are especially toxic; boron, silicon, and possibly arsenic, are essential trace elements. Boron ... Boron of higher purity (> 99%) is prepared by heating volatile boron compounds, such as BCl3 or BBr3, either in a hydrogen ...
... are compounds of tungsten and boron. Their most remarkable property is high hardness. The Vickers hardness of ... and WB4 crystals can be grown by arc-melting a mixture of elemental tungsten and boron. WB2 has the same hexagonal structure as ...
... are compounds of osmium and boron. Their most remarkable property is potentially high hardness. It is thought ... which is a hazardous compound. Synthesis occurs at high temperatures (~1000 °C) from a mixture of MgB2 and OsCl3. Three osmium ... that a combination of high electron density of osmium with the strength of boron-osmium covalent bonds will make osmium borides ...
... s are compounds of ruthenium and boron. Their most remarkable property is potentially high hardness. Vickers ...
... especially derivatives of boron and phosphorus. She has also conducted research on bioactive boron compounds. She has authored ... Germany Website of The Hey-Hawkins Research Group at the University of Leipzig Boron-Based Compounds: Potential and Emerging ... Much of her work focuses on main group compounds, ...
"Trihalides: Boron-Halogen Compounds READ FEEDBACK VERSION HISTORY USAGE". boundless.com. Retrieved 7 June 2017.. ... A trihalide in chemistry is an organohalide consisting of three halide atoms bonded to a single atom or compound. An example of ...
The compound bortezomib with a boronic acid group is a drug used in chemotherapy. The boron atom in this molecule is a key ... As a compound containing a carbon-boron bond, members of this class thus belong to the larger class of organoboranes. Boronic ... Frankland, E. (1862). "On a new series of organic compounds containing boron". J. Chem. Soc. 15: 363-381. Bibcode:1862RSPT..152 ... or other organoborane compound) in which a carbon-boron bond is broken and replaced with a carbon-hydrogen bond. ...
... the agricultural consumption of boron compounds attained considerable dimension". Warington went on to produce papers on other ... Her work on boron was the basis for her D.Sc. from the University of London. Katherine Warington's father had worked at ... Warington's work with boron came about because an entomologist wanted to find a way of making bean plants distasteful to black ... By 1923 she had published the proof that boron was essential to the healthy growth of broad beans. Dr Hugh Nicol commented "It ...
Patnaik, Pradyot (2003). Handbook of Inorganic Chemical Compounds. McGraw-Hill. pp. 444-446. ISBN 0-07-049439-8. . Retrieved ... For the other group formerly named Group III (boron group), see Group 13 element. ... Heiserman, David L. (1992). "Element 39: Yttrium". Exploring Chemical Elements and their Compounds. New York: TAB Books. pp. ... Once reached a human, scandium concentrates in the liver and is a threat to it; some its compounds are possibly carcinogenic, ...
"New Type of Zero-Valent Tin Compound". ChemistryViews. 27 August 2016.. *↑ "HSn". NIST Chemistry WebBook. National Institute of ... Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon ... Magnetic susceptibility of the elements and inorganic compounds, in Lide, D. R., ed. (2005). CRC Handbook of Chemistry and ...
Binary Compounds of Boron and Lithium" (PDF). Journal of the American Chemical Society. 2012 (134): 18606-18. doi:10.1021/ ... The alkali metal borides tend to be boron-rich, involving appreciable boron-boron bonding involving deltahedral structures,[10] ... Various phases are known, such as LiB10, NaB6, NaB15, and KB6.[111][112] Under high pressure the boron-boron bonding in the ... Compounds with the group 13 elementsEdit. The intermetallic compounds of the alkali metals with the heavier group 13 elements ( ...
Experimental treatments include targeted therapy, gamma knife radiosurgery,[45] boron neutron capture therapy and gene therapy. ... in part by shuttling different compounds around in response to injury or other stimulus. ...
Cloke, F. Geoffrey N. (1993). "Zero Oxidation State Compounds of Scandium, Yttrium, and the Lanthanides". Chem. Soc. Rev. 22: ... Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon ...
Related fluoro-substituted boron compounds, such as those containing B-CF3 groups, decompose with formation of B-F bonds. Tris( ... C6F5)3B was used to prepare a compound containing a Xe-C bond: (C6F5)3B + XeF2 → [C6F5Xe]+[(C6F5)2BF2]−. Upon reaction with ... boron is used as an activator or cocatalyst: (C6F5)3B + (C5H5)2Zr(CH3)2 → [(C5H5)2ZrCH3]+[(C6F5)3BCH3]−. In this process, the ... Otherwise (C6F5)3B binds to a wide range of Lewis bases, even weak ones.[8] The compound is hygroscopic, forming the trihydrate ...
This method requires a slight excess of boron, as some boron is oxidized during boron carbide reduction. ZrC has also been ... 2008). "Effects of Y2O3 on microstructure and mechanical properties of ZrB2- SiC ceramics". Journal of Alloys and Compounds. ... Due to the loss of some boron as boron oxide, excess boron is needed during borothermic reduction. Mechanical milling can lower ... Boron carbide must be subjected to grinding prior to the boron carbide reduction in order to promote oxide reduction and ...
Boron oxide - B2O3. *Decaborane (Diborane) - B10H14 ... Although most compounds are referred to by their IUPAC ... Inorganic Molecules made thinkable, an interactive visualisation showing inorganic compounds for an array of common metal and ... Retrieved from "https://en.wikipedia.org/w/index.php?title=List_of_inorganic_compounds&oldid=907095066" ...
Related compounds Other anions Aluminium fluoride. Aluminium bromide. Aluminium iodide Other cations Boron trichloride. Gallium ...
R. H. Wentorf, Jr. (March 1961). "Synthesis of the Cubic Form of Boron Nitride". Journal of Chemical Physics. 34 (3): 809-812. ... Magnesium nitride, which possesses the chemical formula Mg3N2, is an inorganic compound of magnesium and nitrogen. At room ... Robert H. Wentorf, Jr. was trying to convert the hexagonal form of boron nitride into the cubic form by a combination of heat, ... This Mg2N4 compound was recovered to ambient conditions, along with the N44− units, marking only the fourth polynitrogen ...
Not that we are entitled to affirm, that these substances we consider as simple may not be compounded of two, or even of a ... and eka-boron (scandium, 1879).[11] Thus, there was no disturbance in the periodic table. ... His 1863 publication included a chart (which contained ions and compounds,[12] in addition to elements), but his original paper ... and we ought never to suppose them compounded until experiment and observation has proved them to be so." ...
Boron Boron is an essential plant nutrient, required primarily for maintaining the integrity of cell walls.[45][46][47] Boron ... as compounds), a combination of vitamins and/or other chemical compounds, or a single element (as a compound or mixture of ... Boron in Idaho" (PDF). University of Idaho. Archived from the original (PDF) on 1 October 2009. Retrieved 2009-05-05.. ... "Functions of Boron in Plant Nutrition" (PDF). U.S. Borax Inc. Archived from the original (PDF) on 20 March 2009.. ...
we show that an FeAl-type brittle but hard intermetallic compound (B2) can be effectively used as a strengthening second phase ... Common alloying elements include: manganese, nickel, chromium, molybdenum, boron, titanium, vanadium, tungsten, cobalt, and ... Adding small amounts of nickel was found to result in precipitation as nano particles of brittle B2 intermetallic compounds ... "Brittle intermetallic compound makes ultrastrong low-density steel with large ductility". Nature. Nature Publishing Group. 518 ...
"for their development of the use of boron- and phosphorus-containing compounds, respectively, into important reagents in ... through his work on organic dyes and hydroaromatic compounds"[۱۶] ...
Boron, Walter F. (2004). Medical Physiology: A Cellular And Molecular Approach. Elsevier/Saunders. p. 875. ISBN 978-1-4160-2328 ... Any given herbal medication will include a vast range of plant-derived compounds, some of which will be active drugs that may ... Chemically, diuretics are a diverse group of compounds that either stimulate or inhibit various hormones that naturally occur ...
Exposure to tellurium compounds produces a garlic-like odour on the breath, caused by the formation of ethyl telluride.[13] ... Boron trioxide (B2O3). *Cerium(III) oxide (Ce2O3) ... additions of a second compound such as an oxide or halide. TeO2 ...
Most carbon compounds CO2 Carbon dioxide Determining the point group is a useful way to predict polarity of a molecule. In ... For example, boron trifluoride (BF3) has a trigonal planar arrangement of three polar bonds at 120°. This results in no overall ... In a molecule of boron trifluoride, the trigonal planar arrangement of three polar bonds results in no overall dipole. ... Examples of household nonpolar compounds include fats, oil, and petrol/gasoline. Therefore, most nonpolar molecules are water- ...
Carbon and oxygen nuclei collide with interstellar matter to form lithium, beryllium and boron in a process termed cosmic ray ... and boron. These nuclei appear in cosmic rays in much greater abundance (≈1%) than in the solar atmosphere, where they are only ... Organic compound. *Outer space. *PAH world hypothesis. *Panspermia. *Polycyclic aromatic hydrocarbon (PAH) ...
Steven Benner has argued that chemical conditions on the planet Mars, such as the presence of boron, molybdenum and oxygen, may ... In March 2015, NASA scientists reported that, for the first time, complex DNA and RNA organic compounds of life, including ... where the said compound spontaneously crystallised out from a mixture of the other pentose aminooxazolines. Aminooxazolines can ... a team at the Scripps Research Institute identified reactions involving the compound diamidophosphate which could have linked ...
Organoaluminium(III) compounds. *(Al(CH3)3)2. *(Al(C2H5)3)2 ... Boron nitride. *Aluminium phosphide. *Indium nitride. * ...
Magnetic susceptibility of the elements and inorganic compounds (PDF). CRC Handbook of Chemistry and Physics (edisi ke-81st). ... Fungsi ini umum ditemukan pada unsur golongan 13, terutama pada kompleks borana (hidrida boron) dan aluminium serta karborana ... Takeshita, T. (1974). "Hydrogen solubility in 1:5 compounds between yttrium or thorium and nickel or cobalt". Inorganic ...
Due to the toxicity associated with Cd and Pb based compounds there are also a series of "green" QD sensitizing materials in ... Those materials include gallium (4N, 6N and 7N Ga), arsenic (4N, 6N and 7N) and germanium, pyrolitic boron nitride (pBN) ... Many use organic materials, often organometallic compounds as well as inorganic substances. Despite the fact that their ... achieved by selectively absorbing the ultraviolet and near-infrared parts of the spectrum with small-molecule compounds.[95][96 ...
Niobium and its compounds are thought to be slightly toxic, but niobium poisoning is not known to have occurred. Niobium dust ... Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon ... Tantalum and its compounds rarely cause injury, and when they do, the injuries are normally rashes.[4] ... Vanadium oxide gives ceramics a golden color, and other vanadium compounds are used as catalysts to produce polymers.[4] ...
US20110086965A1 «BORON NITRIDE NANOSHEET, METHOD FOR PRODUCING BORON NITRIDE NANOSHEET THEREOF AND COMPOSITION CONTAINING BORON ... P. M.F.J. Costa, U. K. Gautam, Y. Bando and D. Golberg : «The electrical delivery of a sublimable II-VI compound by vapor ... C. TANG, Y. Bando, C. Zhi, D. Golberg : «Boron-oxygen luminescence centres in boron-nitrogen systems» Chem. Commun.[44] (2007) ... X. Li, D. Golberg : «Boron nitride nanotubes as drug carriers» Boron Nitride Nanotubes in Nanomedicine 1st Edition (2016) 79-94 ...
Charged particles such as protons and boron, carbon, and neon ions can cause direct damage to cancer cell DNA through high-LET ... including preclinical and clinical investigations into the use of an oxygen diffusion-enhancing compound such as trans sodium ...
Boron, Walter F.; Boulpaep, Emile L. (2005). Medical Physiology. Elsevier Saunders. p. 883. ISBN 978-1-4160-2328-9. .. ... The detection of bitterness warns of poisons-many of a plant's defences are of poisonous compounds that are bitter. Sweetness ...
... yield from compound 2 treated with lithium hexamethyldisilazide, in mixture with lithium dimethylsulfone and boron trifluoride ... The resolution of compound 3 was accomplished by treating it with N-acetyl-L-leucine yielding 3S. The final step then uses ... The formulated hydrochloride (Compound 3 in Scheme 3) was then reacted with 3-nitrophthalic anhydride in refluxing acetic acid ... Lenalidomide is synthesized in a similar way using compound 3 (3-aminopiperidine-2,6-dione) treated with a nitro-substituted ...
"for their development of the use of boron- and phosphorus-containing compounds, respectively, into important reagents in ... for] his services to organic chemistry and the chemical industry by his pioneer work in the field of alicyclic compounds"[10] ... for] the discovery of the elements radium and polonium, by the isolation of radium and the study of the nature and compounds of ... "for his work on biochemically important sulphur compounds, especially for the first synthesis of a polypeptide hormone"[47] ...
In aqueous solution, like compounds of other late lanthanides, soluble ytterbium compounds form complexes with nine water ... Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon ... 2 oxidation state occurs only in solid compounds and reacts in some ways similarly to the alkaline earth metal compounds; for ... Marignac suspected that ytterbia was a compound of a new element that he called "ytterbium".[9][23][25][26][27] ...
Chemical compounds[change , change source]. See also: Category:Barium compounds. Barium is too reactive as a metal, so it is ... Boron Carbon Nitrogen Oxygen Fluorine Neon Sodium Magnesium Aluminium Silicon Phosphorus Sulfur Chlorine Argon ... As chemical compounds[change , change source]. Certain compounds of barium, such as barium sulfate, are not toxic and can be ... It is found in chemical compounds. Barium only occurs in one oxidation state: +2. Most barium compounds are colorless. The ones ...
The present invention relates to the field of boron-containing compounds, particularly compounds with antibacterial, anti- ... Compound half-life is inversely proportional to the frequency of dosage of a compound. In vitro half-lives of compounds may be ... In certain situations, compounds of the invention may contain one or more asymmetric carbon atoms, so that the compounds can ... The method of claim 11, wherein said compound is a compound selected from Table 1. 13. The method of claim 11, wherein R3 is - ...
Inorganic or organic compounds that contain boron as an integral part of the molecule.. *Drugs ... This use is approved as this compound rapidly degrades to harmless byproducts.[T203]. ...
... of a transition metal compound such as a tetraalkoxy titanium compound and a boron compound such as a trialkyl boron compound ... Particularly suitable boron compounds include, for example, triethyl boron, triphenyl boron, diethyl boron chloride, boron ... of a transition metal compound such as a tetraalkoxy titanium compound and a boron compound such as a trialkyl boron compound ... of a transition metal compound such as a tetraalkoxy titanium compound and a boron compound such as a trialkyl boron compound ...
... The latest inorganic benzene has pronounced aromaticity by Mark Peplow ... A cunningly modified ring of boron and nitrogen atoms is the closest inorganic analog of benzene yet created, its creators say ... Unlike borazines alternating pattern of elements, diazatetraborinines ring includes four boron atoms that sit in pairs and ...
Boron-doped diamond (BDD) electrodes prepared by chemical vapor deposition were used to determine if phenol could be oxidized ... Boron-doped diamond (BDD) electrodes prepared by chemical vapor deposition were used to determine if phenol could be oxidized ... Electrochemical oxidation of organic compounds using boron-doped diamond electrodes. ECS Transactions, 45(17), 19-30. https:// ...
Boron, phosphate, HDPE, fire retardants, thermal properties, wood plastic composite. Related Search. *Effect of boron compounds ... of boron compounds [borax/boric acid (BX/BA) (0.5:0.5 wt %), zinc borate (ZB)] and phosphorus compounds [mono- and di-ammonium ... Effect of boron and phosphate compounds on thermal and fire properties of wood/HDPE composites. International Journal of ... Effect of boron and phosphate compounds on physical, mechanical, and fire properties of wood-polypropylene composites. ...
Attempts to produce boron-lithium, boron-magnesium, and [GDCh-Ortsverband Frankfurt/Main (Germany) boron-mercury compounds have ... Diboron, Polyboron, and Metal-Boron Compounds Diboron compounds BzX4 are readily accessible by dehalogenation of boron ... Diboron Polyboron and Metal-Boron Compounds.. код для вставки. код для вставки на сайт или в блог. Ширина: (. aвто. ). ... boron(ll1) and polyboron compounds are always formed. The increase in stability in the series B2Cl4, BzH(CH3)zIdMOCH ~)~,BzRz~ ...
Materials Chemistry and Boron Compounds Conference scheduled on May 13-14, 2021 in May 2021 in Amsterdam is for the researchers ... Boron compounds. Diboranes. Metal-boron compounds. B-H Activation. Organometallic chemistry. Homogeneous catalysis. Boron in ... Boron in Catalysis, Materials Chemistry and Boron Compounds. ICBCMCBC 2021: 15. International Conference on Boron in Catalysis ... International Conference on Boron in Catalysis, Materials Chemistry and Boron Compounds aims to bring together leading academic ...
... different boron-enriched compounds have been designed and developed. Efforts to circumvent the selectivity-uptake challenge and ... have been to driving force behind the medicinal chemistry field in boron-based compounds. In this regard, a wide diversity of ... This procedure requires the selective accumulation of boron into the tumoral cells, and due to this requirement, ... boron neutron capture therapy (BNCT) was a special type of radiotherapy for treatment of cancer and with focus mainly on glioma ...
Use MacRaesBlueBook.com for accurate listings of Boron Compounds, Not From Mines, NEC Chemicals Manufacturers in California. ... CHEMICALS: Silica Compounds. , CHEMICALS: Ammonium Compounds. , CHEMICALS: Ammonium Compounds, Exc Fertilizers, NEC. , ... CHEMICALS: Ammonium Salts & Compounds. , CHEMICALS: Nickel Compounds Or Salts, Inorganic. , CHEMICALS: Magnesium Compounds Or ... BLENDING: Chemical, Compounding. , CHEMICALS: Lithium Compounds, Inorganic. , CHEMICALS: Sodium & Potassium Compounds, Exc ...
ETDEWEB / Search Results / Contribution to the study by infrared spectroscopy of addition compounds of boron fluorides and ... In a first part, the author recalls vibration modes of free boron fluoride and of this compound in a complex. In the next parts ... In a first part, the author recalls vibration modes of free boron fluoride and of this compound in a complex. In the next parts ... Contribution to the study by infrared spectroscopy of addition compounds of boron fluorides and ethers-oxides or organic ...
Title: Boron, bismuth co-doping of gallium arsenide and other compounds for photonic and heterojunction bipolar transistor ... Patent: Boron, bismuth co-doping of gallium arsenide and other compounds for photonic and heterojunction bipolar transistor ... For example, Group III-V compounds and alloys, such as GaAs and GaP, are isoelectronically co-doped with, for example, B and Bi ... Isoelectronic co-doping of semiconductor compounds and alloys with acceptors and deep donors is sued to decrease bandgap, to ...
Materials Chemistry and Metal-Boron Compounds Conference scheduled on December 01-02, 2022 in December 2022 in Auckland is for ... Boron compounds. Diboranes. Metal-boron compounds. B-H Activation. Organometallic chemistry. Homogeneous catalysis. Boron in ... Boron in Catalysis, Materials Chemistry and Metal-Boron Compounds. ICBCMCMBC 2022: 16. International Conference on Boron in ... International Conference on Boron in Catalysis, Materials Chemistry and Metal-Boron Compounds aims to bring together leading ...
... ... boron, as the boron-based hydride acceptor akin to BBr3. Side reactions could be minimized by varying the reaction conditions. ...
... of compound biological effectiveness factors on the type and the concentration of administered neutron capture agents in boron ... To examine the effect of the type and the concentration of neutron capture agents on the values of compound biological ... effectiveness (CBE) in boron neutron capture therapy. After the subcutaneous administration of a (10) B-carrier, ...
... compounds) has announced the addition of the Boron Compounds... ... compounds) has announced the addition of the Boron Compounds ( ... PRNewswire/ -- Research and Markets (http://www.researchandmarkets.com/research/4rmxhb/boron_ ... Other boron compounds such as sodium metaborate, sodium perborate, boric oxide and boron trifluoride are used for tanning, ... Commercially important boron compounds such as borax, boric acid, sodium metaborate, sodium perborate, boric oxide and boron ...
... Pettersson, Jean Uppsala University, ...
About the Boron-book "Boron-Based Compounds: Potential and Emerging Applications in Medicine". Boron-Based Compounds offers a ... boron compounds for boron neutron capture therapy (BNCT) and for diagnostics, as well as in silico molecular modeling of boron ... organometallic boron compounds laid the foundation for the emergence of a new area of study and application of boron compounds ... In the case of Boron, the featured book is "Boron-Based Compounds: Potential and Emerging Applications in Medicine" edited by ...
... ... CitationFortuny, A. [et al.]. Effect of phase modifiers on boron removal by solvent extraction using 1,3 diolic compounds. " ... Efficiency of the diolic extractants for boron separation have been tested in the presence of different solvent modifiers. ... CONCLUSION: Quantitative removal of boron was achieved from industrial waste solutions such as a spent phosphate passivation ...
"Modification of siloxane coatings with boron and aluminum compounds, Russian Journal of Applied Chemistry" on DeepDyve, the ... Modification of siloxane coatings with boron and aluminum compounds. Modification of siloxane coatings with boron and aluminum ... Modification of siloxane coatings with boron and aluminum compounds. Khelevina, O. Add Journal to My Library Russian Journal of ... lp/springer_journal/modification-of-siloxane-coatings-with-boron-and-aluminum-compounds-pab5FwYakJ ...
Activities of poly-boron compounds were compared with 2APB, mono-boron and bis-boron com.. ... Inhibitory activities of 74 poly-boron compounds for SOCE and IICR were measured. ... bis-boron compounds), and Part 3 (poly -boron compounds). We have reported about mono-boron compounds [45] and bis-boron ... the mono-boron compounds and bis-boron compounds showed almost 10 times strong activity than poly-boron compounds. Poly-boron ...
... offers quality China Solid boron triflouride acetonitrile complex compound. ... China Solid boron triflouride acetonitrile complex compound Suppliers , ... Solid boron triflouride acetonitrile complex compound. Inquiry. Post Date:. Jun 23,2021. ... Home > Offer to Sell > Intermediates > Pharmaceutical intermediates > Solid boron triflouride acetonitrile complex compound ...
Kartal SN, Shinoda K, Imamura Y (2005) Laboratory evaluation of boron-containing quaternary ammonia compound, didecyl dimethyl ... Performance of fluoride and boron compounds against drywood and subterranean termites and decay and mold fungi. ... Resistance of boron-treated wood (Virola spp) to insect and fungal attack. For Prod J 37(2):10-17Google Scholar ... Drysdale JA (1994) Boron treatments for the preservation of wood: A review of efficacy data for fungi and termites. ...
Structural studies of organoboron compounds .64. Boron chelate formation with glycolohydroxamic acids, and the crystal and ... Structural studies of organoboron compounds .64. Boron chelate formation with glycolohydroxamic acids, and the crystal and ... Structural studies of organoboron compounds .64. Boron chelate formation with glycolohydroxamic acids, and the crystal and ... BOND LENGTHS RELATIONS, crystal structure, HETERO-PI-SYSTEMS, hydroxamatoborate, HYDROXAMIC ACIDS, organoboron compound. ...
The products have superior leach resistance to water when compared to conventional treatment compounds. ... C01B35/00-Boron; Compounds thereof * C01B35/08-Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or ... SPECIALITY BORON PRODUCTS LLC Specialty Boron Products LLC Original Assignee. SPECIALITY BORON PRODUCTS LLC. Specialty Boron ... The calcium compound or compounds that are produced are placed in solution, and thereafter remain in solution. The compound or ...
Explore detailed TOC, tables and figures of Global Vinyl Boron Compound Market Research Report 2017. ... Request sample of market research report on Global Vinyl Boron Compound Market Research Report 2017. ... Part I Vinyl Boron Compound Industry Overview. Chapter One Vinyl Boron Compound Industry Overview. 1.1 Vinyl Boron Compound ... 17.1 Vinyl Boron Compound Market Analysis. 17.2 Vinyl Boron Compound Project SWOT Analysis. 17.3 Vinyl Boron Compound New ...
Overview Boron is the first element in Group 13 (IIIA) of the periodic table [1]. The periodic table [2] is a chart that shows ... BORON (REVISED) Note: This article, originally published in 1998, was updated in 2006 for the eBook edition. ... Boron also forms important compounds with two other elements, carbon and nitrogen. Boron carbide (B4C) and boron nitride (BN) ... Compounds of boron have been used for centuries. Borax, a boron compound, has long been used to make glass and glazes. The ...
Antonyms for Boron compounds. 2 synonyms for boron: atomic number 5, B. What are synonyms for Boron compounds? ... boron. (redirected from Boron compounds). Also found in: Dictionary, Medical, Encyclopedia.. Related to Boron compounds: boric ... Boron compounds synonyms, Boron compounds antonyms - FreeThesaurus.com https://www.freethesaurus.com/Boron+compounds ... 23, 2014 /PRNewswire/ -- Boron compounds are extremely valuable and versatile.. Boron Compounds (Borax, Boric Acid and Others) ...
The compounds were expected to have antimycobacterial activity due to the ability of boron to form charged, reversible ... The compounds were expected to have antimycobacterial activity due to the ability of boron to form charged, reversible ... Chemical syntheses of rationally-designed pyridine and pyrazine derivatives and boron-containing compounds for inhibition of ... Chemical syntheses of rationally-designed pyridine and pyrazine derivatives and boron-containing compounds for inhibition of ...
Three-center two-electron bonds are seen in many boron compounds, such as diborane (B2H6). The monomer BH3 is unstable since ... A B−H−B 3-center-2-electron bond is formed when a boron atom shares electrons with a B−H bond on another boron atom. In ... This type of bond also occurs in carbon compounds, where it is sometimes referred to as hyperconjugation; another name for ... each boron is surrounded by a stable octet. ... Boron compounds[edit]. Resonance structures of 3c-2e bond in ...
  • Since its first description, boron neutron capture therapy (BNCT) was a special type of radiotherapy for treatment of cancer and with focus mainly on glioma therapeutic. (intechopen.com)
  • One year later in the USA, Gordon Locher introduced the concept of boron neutron capture therapy (BNCT) [ 2 ]. (intechopen.com)
  • The authors cover a range of the most relevant topics including boron compounds as modulators of the bioactivity of biomolecules, boron clusters as pharmacophores or for drug delivery, boron compounds for boron neutron capture therapy (BNCT) and for diagnostics, as well as in silico molecular modeling of boron- and carborane-containing compounds in drug design. (icmab.es)
  • Boron Neutron Capture Therapy (BNCT) is a type of radiotherapy where boron-containing compounds are preferentially uptaken by tumour cells and then the area is exposed to a low energy neutron beam. (growkudos.com)
  • Boron cluster are developed as boron anti-tumor agents for BNCT - Boron Neutron Capture Therapy - radioimaging/ radiotherapy with iodine containing B-compounds and X-Ray contrast. (icmab.es)
  • Brookhaven researchers recently performed clinical trials to determine the safety and toxicity limits of an experimental therapy known as boron neutron capture therapy (BNCT) when used with a boronated amino acid called BPA in patients with an incurable brain cancer known as glioblastoma multiforme. (bnl.gov)
  • Compared to BPA, the new boron compounds are expected to deliver higher concentrations of boron to certain tumors than to normal surrounding tissues within the neutron-irradiated regions, which may make the new compounds more effective for BNCT. (bnl.gov)
  • If pre-clinical studies under the CRADA agreement and subsequent clinical trials find the new compounds to be safe and effective, they may well be used in BNCT for the treatment of head and neck tumors and/or brain tumors. (bnl.gov)
  • The new boron compounds concentrate preferentially in tumors and destroy cancerous cells when they react with neutrons in BNCT. (bnl.gov)
  • Also, the tumor:blood boron concentration ratio was greater than 100:1, compared to only 3:1 for previous boron compounds used in BNCT. (bnl.gov)
  • In BNCT studies performed at Brookhaven reported in Radiation Research (April 2001), the new compound controlled 70 percent of leg tumors in mice, with little or no normal tissue damage or chemical toxicity to the animals. (bnl.gov)
  • We envisaged N-benzyl derivatives of the polyamines as vectors of (10)B and (18)F for boron neutron capture therapy (BNCT) and tumor imaging by positron emission tomography (PET), respectively. (nih.gov)
  • This study was performed to investigate the biological effects of boron neutron capture therapy (BNCT) on the testes and eyes in mice using HANARO Nuclear Reactor , Korea Atomic Energy Research Institute . (bvsalud.org)
  • The boron neutron capture therapy (BNCT) has been utilized for cancer treatment from last decade, where chemotherapy and radiation have their own shortcomings. (mdpi.com)
  • However, the improvement in the already existing (BPA and/or BSH) localized delivery agents or new tumor-targeted compounds are required before realizing the full clinical potential of BNCT. (mdpi.com)
  • Here, we have focused on the possible clinical implications of the new and improved boron-based biologically active compounds for BNCT that are reported to have in vivo and/or in vitro efficacy. (mdpi.com)
  • Accurate dosimetry and determination of the biological effectiveness of boron neutron capture therapy (BNCT) is challenging because of the mix of different types and energies of radiation at the cellular and subcellular levels. (mdpi.com)
  • In this paper, we present a computational, multiscale system of models to better assess the relative biological effectiveness (RBE) and compound biological effectiveness (CBE) of several neutron sources as applied to BNCT using boronophenylalanine (BPA) and a potential monoclonal antibody (mAb) that targets HER-2-positive cells with Trastuzumab. (mdpi.com)
  • The system of models developed in this work is potentially useful as an aid for the optimization and individualization of BNCT for HER-2-positive cancers, as well as other cancers, that can be targeted with mAb or a conventional BPA compound. (mdpi.com)
  • Boron neutron capture therapy (BNCT) has been investigated as a potential treatment for glioblastoma multiforme (GBM), head and neck cancers, melanoma, and other tumor sites for many decades. (mdpi.com)
  • Although efforts to develop neutron sources and new boron delivery agents for BNCT are ongoing [ 1 ], boronophenylalanine (BPA) and sodium borocaptate (BSH) are currently the only boron compounds approved for use in clinical trials [ 2 ]. (mdpi.com)
  • Boron neutron capture therapy (BNCT) is a technique in which p -boronophenylalanine (BPA) is transferred to cancer cells, and the boron in it undergoes nuclear fission reaction upon irradiation of thermal neutrons, releasing high energy particles that kill the cells. (titech.ac.jp)
  • One such therapeutic option is boron neutron capture therapy (BNCT), a radiotherapy process involving transferring boron into cancer cells, and exposing it to neutron particles, causing it to undergo nuclear fission, which kills the cancer cells. (titech.ac.jp)
  • This research thesis reports the study of complexes formed with boron fluoride and ethers or organic sulphides. (osti.gov)
  • Hydride transfer was observed in the model system comprised of Hantzsch ester and several analogues, as the organic hydride donor, and tris(pentafluorophenyl)boron, as the boron-based hydride acceptor akin to BBr3. (queensu.ca)
  • Boron-containing reagents are also used as intermediates in the synthesis of organic chemicals and as dopant for semiconductors. (prnewswire.co.uk)
  • The following new organic boron-nitrogen compounds were synthesised NH-phenylene t-butylaminoboronate NH-phenylene ethylaminoboronate NH-phenylene isopropylaminoboronate NH-phenylene phenylaminoboronate NH-phenylene dimethylaminoboronate The last four compounds were all obtained as hydrolytically stable dimers. (dtic.mil)
  • Cytochrome P450 enzymes (CYPs) have been used for more than six decades as catalysts for the CH-activating oxidative hydroxylation of organic compounds with formation of added-value products. (rsc.org)
  • Electrolytic corrosion of boron-doped diamond (BDD) electrodes after applying a high positive potential to decompose organic compounds in aqueous solution was studied. (elsevier.com)
  • The corrosion due to electrolysis was observed especially in aqueous solutions of acetic acid or propionic acid, while it was not observed in other organic compounds such as formic acid, glucose, and methanol. (elsevier.com)
  • A numerical model has been developed to estimate the role of hydroxyl radicals in the competition of organic compounds during electrolysis using a boron-doped diamond (BDD) anode. (univ-toulouse.fr)
  • The implementation of the model taking account the presence of one and then two organic compounds in the solution can be used to predict the variation of the concentration of each organic with time during the electrolysis and their space profile in the electrochemical reactor too without using adjustable parameters. (univ-toulouse.fr)
  • Justia Patents Organic Compounds -- Part Of The Class 532-570 Series Patents Organic Compounds (class 532, Subclass 1) Boron Acids Or Salts Thereof (i.e. (justia.com)
  • Study of the various classes of organic compounds, including substitutions in the aromatic nucleus, cyclic compounds, and natural products such as amino acids, carbohydrates and peptides. (gettysburg.edu)
  • The development of new methods for preparing organic compounds is a fundamental aspect of research on new drugs and advanced materials. (phys.org)
  • When additional atomic groups are added to an organic compound such as an alkyne, which has two carbon -carbon triple bond sites, the added groups can attach to the triple bond sites such that they are oriented to one side of the molecule to form what is known as a cis configuration, or oriented in opposite directions to afford a trans structure. (phys.org)
  • Due to its short interatomic bond lengths and strongly covalent character, B 6 O displays a range of outstanding physical and chemical properties such as great hardness (close to that of rhenium diboride and boron nitride ), low mass density, high thermal conductivity, high chemical inertness, and excellent wear resistance. (wikipedia.org)
  • Novel boron nitride agglomerated powders are provided having controlled density and fracture strength features. (freepatentsonline.com)
  • One method calls for providing a feedstock powder including boron nitride agglomerates, and heat treating the feedstock powder to form a heat treated boron nitride agglomerated powder. (freepatentsonline.com)
  • I want to get the latest chemistry news from C&EN in my inbox every week. (acs.org)
  • aims to bring together leading academic scientists, researchers and research scholars to exchange and share their experiences and research results on all aspects of Boron in Catalysis, Materials Chemistry and Boron Compounds. (waset.org)
  • Also, high quality research contributions describing original and unpublished results of conceptual, constructive, empirical, experimental, or theoretical work in all areas of Boron in Catalysis, Materials Chemistry and Boron Compounds are cordially invited for presentation at the conference. (waset.org)
  • ICBCMCBC 2021 has teamed up with the Special Journal Issue on Boron in Catalysis, Materials Chemistry and Boron Compounds . (waset.org)
  • Efforts to circumvent the selectivity-uptake challenge and other problems, such as solubility, stability, and toxicity, have been to driving force behind the medicinal chemistry field in boron-based compounds. (intechopen.com)
  • ICBCMCMBC 2022 has teamed up with the Special Journal Issue on Boron in Catalysis, Materials Chemistry and Metal-Boron Compounds . (waset.org)
  • The knowledge accumulated during the past decades on the chemistry and biology of bioorganic and organometallic boron compounds laid the foundation for the emergence of a new area of study and application of boron compounds as lipophilic pharmacophores and modulators of biologically active molecules.This important text brings together in one comprehensive volume contributions from renowned experts in the field of medicinal chemistry of boron compounds. (icmab.es)
  • The chemistry of boron is extremely complex, with entire texts devoted solely to this topic. (drugs.com)
  • Boron has been used in nuclear chemistry as a neutron absorber. (drugs.com)
  • While up to a few decades ago, chalcogen chemistry was mainly centred on sulphur, in recent years the research based on Se and Te has increased dramatically, and has created huge scope for the use of compounds based on this type of chemistry. (rsc.org)
  • Naming Compounds Naming compounds is an important part of chemistry. (majortests.com)
  • Boron compounds now have many applications in a number of fields, including Medicinal Chemistry. (mdpi.com)
  • Carboranes are a class of organometallic compounds containing carbon (C), boron (B), and hydrogen (H) and are the most widely studied boron compounds in medicinal chemistry. (mdpi.com)
  • Ali F, S Hosmane N, Zhu Y. Boron Chemistry for Medical Applications. (mdpi.com)
  • Study of the fundamental concepts of the chemistry of carbon compounds, with emphasis on molecular structure, reaction mechanisms, stereochemistry, and the application of spectroscopy to problems of identification. (gettysburg.edu)
  • Although the uses of boron compounds in pharmacological science have been recognized several decades ago, surprisingly few are found in pharmaceutical drugs. (mdpi.com)
  • Melting and non-isothermal crystallization behaviors, oxidative induction time, and fire performance of the injection-molded wood flour-high density polyethylene (HDPE) composites (WPCs) incorporated with different levels (4, 8, or 12 wt %) of boron compounds [borax/boric acid (BX/BA) (0.5:0.5 wt %), zinc borate (ZB)] and phosphorus compounds [mono- and di-ammonium phosphate] were investigated. (usda.gov)
  • Commercially important boron compounds such as borax, boric acid, sodium metaborate, sodium perborate, boric oxide and boron trifluoride are derived from boron minerals. (prnewswire.co.uk)
  • In terms of volume, borax accounted for more than 44% of the global boron compounds market in 2013. (prnewswire.co.uk)
  • Boric acid is another widely used industrial boron compound, apart from borax. (prnewswire.co.uk)
  • Borax, a boron compound, has long been used to make glass and glazes. (encyclopedia.com)
  • B-Zn-Si-Al compounds are modified Si-Al compounds made of sodium silicate, zinc sulfate, borax, and aluminum sulfate. (ncsu.edu)
  • Instead, it is found in the forms of its compounds, such as borax and boric acid. (majortests.com)
  • a nonmetallic element occurring naturally only in combination, as in borax or boric acid , and obtained in either an amorphous or a crystalline form when reduced from its compounds. (dictionary.com)
  • Researcher Clara Viñas shares the results of her investigation on boron salts in UABDivulga. (icmab.es)
  • Common borate compounds include boric acid, salts of borates, and boron oxide. (cdc.gov)
  • Because LiBF4 and other alkali-metal salts thermally decompose to evolve boron trifluoride, the salt is commonly used as a convenient source of the chemical at the laboratory scale: LiBF4 → LiF + BF3 LiBF4 is a byproduct in the industrial synthesis of diborane: 8 BF3 + 6 LiH → B2H6 + 6 LiBF4 LiBF4 can also be synthesized from LiF and BF3 in an appropriate solvent that is resistant to fluorination by BF3 (e.g. (wikipedia.org)
  • These compounds are usually pyridinium salts of metallates, e.g. (uspto.gov)
  • Barnes HM, Amburgey TL, Williams LH, Morrell JJ (1989) Borates as wood preserving compounds: the status of research in the United States. (springer.com)
  • Still further, the invention relates to the boron-containing compounds prepared by the inventive method for treating calcium borates. (google.com)
  • While boric acid, borates, and other compounds containing boron are used medicinally, they are potentially toxic if ingested or absorbed through nonintact skin. (drugs.com)
  • It is often found combined with other substances to form compounds called borates. (cdc.gov)
  • Several companies in the United States produce most of the world's borates by processing boron compounds. (cdc.gov)
  • The International Conference On Phosphorus, Boron and Silicon - PBSi 2018 will take place in Barcelona on 10-12 December 2018. (icmab.es)
  • The dependency of compound biological effectiveness factors on the type and the concentration of administered neutron capture agents in boron neutron capture therapy. (sigmaaldrich.com)
  • To examine the effect of the type and the concentration of neutron capture agents on the values of compound biological effectiveness (CBE) in boron neutron capture therapy. (sigmaaldrich.com)
  • Boron neutron capture therapy at the crossroads - Where do we go from here? (isnct.net)
  • Boron compounds are used to enhance the cell selectivity of radiation therapy. (drugs.com)
  • Because of boron's ability to absorb electromagnetic radiation, boron-based compounds are used in conjunction with radiation therapy to enhance the selective killing of neoplastic cells, particularly those of resistant neoplasia such as glioblastoma. (drugs.com)
  • Upton, NY - The Department of Energy's Brookhaven National Laboratory and Psimei Pharmaceuticals Limited have signed a Cooperative Research and Development Agreement (CRADA) to develop Brookhaven-invented boron compounds for use in an experimental radiation therapy for cancer, as well as in other cancer treatments. (bnl.gov)
  • The invention also provides pharmaceutical compositions of the inventive compounds and methods for using the compositions for therapy. (justia.com)
  • Unlike borazine's alternating pattern of elements, diazatetraborinine's ring includes four boron atoms that sit in pairs and bond to either chlorine or trimethylphosphine. (acs.org)
  • Boron atoms are able to absorb a large number of neutrons. (encyclopedia.com)
  • In diborane, there are two such bonds: two H atoms bridge the two B atoms, leaving two additional H atoms in ordinary B−H bonds on each B. As a result, each boron is surrounded by a stable octet . (wikipedia.org)
  • Each icosahedron is composed of twelve boron atoms. (wikipedia.org)
  • All three groups of compounds are compounds between small nonmetal and larger metal atoms. (wiley.com)
  • They are occasionally denoted interstitial compounds, since the small nonmetal atoms often occupy the interstices between the metal atoms in metal-rich compounds. (wiley.com)
  • Figure 1: The three-dimensional structure of trans-diborylated alkyne, showing the position of boron (yellow), oxygen (red), carbon (gray) and hydrogen (white) atoms. (phys.org)
  • Masanobu Uchiyama and Ryo Takita from the RIKEN Center for Sustainable Resource Science and researchers from the University of Tokyo have now devised a method for selectively adding boron atoms to opposite sides of an alkyne molecule. (phys.org)
  • Uchiyama's team investigated whether diboron-two boron atoms -could be selectively added to an alkyne to form a trans arrangement (Fig. 1). (phys.org)
  • Abstract: BACKGROUND: Among the polyols, 1,3 diols are selective and efficient extractants for boron but significant solubility of these into aqueous solutions restricts their application in large scale separation processes. (upc.edu)
  • BoronFebruary 21st, 19631 metal bonds have, however, resulted from reaction of [VB 693/80 IE] sodium carbonylometallates with boron chlorides. (docme.ru)
  • Other boron compounds such as sodium metaborate, sodium perborate, boric oxide and boron trifluoride are used for tanning, specialty ceramics and cellulose insulation applications. (prnewswire.co.uk)
  • To obtain a more soluble set of compounds, the mixture was then reacted with the sodium salt of trihexylsilanol. (emich.edu)
  • Sodium borocaptate (BSH, 75 ppm, iv) and boronophenylalanine (BPA, 750 ppm, ip) have been used as the boron delivery agents. (bvsalud.org)
  • Boron combines with oxygen in the air to form boron trioxide ( B 2 O 3 ). (encyclopedia.com)
  • Boron trioxide forms a thin film on the surface that prevents further reaction with oxygen. (encyclopedia.com)
  • Atomic structure and electron micrographs of ideal (top) and twinned (bottom) B 6 O. Green spheres are boron, red spheres are oxygen. (wikipedia.org)
  • A bis-NHC diboryne compound has been isolated at room temperature, and it is stable in absence of oxygen/moisture. (blogspot.com)
  • An orthogonal experiment was used to optimize the contents of the four compounds according to the limiting oxygen index. (ncsu.edu)
  • 7. The process according to claim 1 wherein the at least one external electron donor compound containing at least one carbon-oxygen-carbon linkage (C-O-C) having the formula R 1 -O(-R 2 -O) n -R 3 is selected from the group consisting of tetrahydrofuran, diethyl ether, dipropyl ether, diisopropyl ether, dibutyl ether, dioctyl ether, tert-butyl methyl ether, trimethylene oxide and tetrahydropyran. (google.com)
  • Compounds wherein the metal is bonded directly to the singly bonded chalcogen of a group, in which the X's are the same or diverse chalcogens (i.e., oxygen, sulfur, selenium, or tellurium), which group is additionally attached directly or indirectly to the six-membered hetero ring by nonionic bonding. (uspto.gov)
  • Compounds wherein the metal is bonded directly to a chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) which is attached directly or indirectly to the six-membered hetero ring by nonionic bonding. (uspto.gov)
  • Boron Nitrogen of of the sets you Know carried. (ypci.org)
  • 4 to 5 Boron Nitrogen now let in this development Management of. (ypci.org)
  • 127 to 164' Boron Nitrogen Compounds First formed in this manuscript. (ypci.org)
  • Boron Nitrogen experiences new at product upon the selected Getae. (ypci.org)
  • 50 si Boron Nitrogen Compounds top request d architecture crisis. (ypci.org)
  • 40 501(c)(3 classifications Boron Nitrogen Compounds server book purchases. (ypci.org)
  • legal Boron Nitrogen of Exile( MM) McGowan Ovid in Exile. (ypci.org)
  • Compounds which contain a piperidine ring, i.e., a six-membered hetero ring consisting of one ring nitrogen and five ring carbons with no double bonds between ring members. (uspto.gov)
  • Compounds which contain an acyclic nitrogen atom or an azide group. (uspto.gov)
  • Mixtures of boron and B 2 O 3 powders were usually used as starting materials in the reported methods for B 6 O synthesis. (wikipedia.org)
  • Brookhaven National Laboratory medical researchers Michiko Miura (left of chalkboard) and Peggy Micca (right of chalkboard) discuss the synthesis of boronated compounds with Marta Nawrocky (far left), from Psimei Pharmaceuticals Ltd. and Margaret Bogosian (seated, front) from Brookhaven Lab's Office of Intellectual Properties and Industrial Partnerships. (bnl.gov)
  • Also disclosed herein are novel boronic ester and acid compounds, their synthesis and uses. (justia.com)
  • Tamoxifen, a breast cancer treatment , is an example of a compound whose synthesis might be improved by such a new method. (phys.org)
  • He hypothesized that if boron could be selectively concentrated in a tumoral tissue and then exposed to a neutrons beam, a higher radiation dose to the tumor relative to surrounding normal cells would result. (intechopen.com)
  • Boron compounds are also used in cementation of iron, as fibers and filaments in composites with metals or ceramics, in special-purpose alloys, for nuclear reactors, as a shield for nuclear radiation and in instruments used for detecting neutrons. (prnewswire.co.uk)
  • As the rods are lowered into the core, the boron absorbs neutrons, slowing the reaction. (encyclopedia.com)
  • Tests of the model against results from published experiments with and without boron show good agreement between modeled and experimentally determined cell survival for neutrons alone and in combination with boron. (mdpi.com)
  • For the spectrum tailoring two options are offered, that is, either (a) to remove the thermal component using a neutron screen technique based for example, on Cadmium, Boron, or Hafnium shields, or (b) to increase the fast/thermal neutrons ratio inside an MTR by using fissile material. (hindawi.com)
  • Boron compounds are recognized as inexpensive, easily applicable, biologically active, flame retardant and, more importantly, environmentally safe preservatives and have been used for timber preservation since the early 20th century (Williams 1990, Lloyd 1993, Laks and Manning 1994). (freethesaurus.com)
  • European Science Foundation (ESF) workshop 'Biobor' set the stage for a new era of boron therapies going beyond the current application in cancer radiotherapy, said its convenor Zbigniew Lesnikowski. (thaindian.com)
  • Excluded from this subclass are compounds such as, e.g. (uspto.gov)
  • The final list includes four boron compounds and seven phthalate plasticisers. (sgs.com)
  • Furthermore, the present invention relates to methods for selectively producing optically active compounds by using any of these complexes as a catalyst. (justia.com)
  • Ultimately, Uchiyama's team plans to develop similar reactions using alkenes, which contain two carbon-carbon double bonds, as well as 'downstream' reactions that use the carbon-boron bonds selectively. (phys.org)
  • In a Lewis structure of a covalent compound, the shared electron pair between the hydrogen and chlorine ions is represented by a line. (britannica.com)
  • The important similarity is that boron, like carbon, combines with hydrogen to form stable compounds that can participate in biochemical reactions and syntheses. (thaindian.com)
  • Report presenting a method for analyzing each of the elements, boron, carbon, and hydrogen from the quantitative analysis of a single sample of an organoboron compound. (unt.edu)
  • They heated boracic acid (also known as boric acid , H 3 BO 3 ) with potassium metal to produce impure boron. (encyclopedia.com)
  • today this remains a commercially important way to produce impure boron. (drugs.com)
  • Lipscomb also knew of smaller boron compounds that resembled other carbon molecules: For example, the eight-carbon cubane matches with a six-boron hydride ion. (freethesaurus.com)
  • With an unstable fuel like boron hydride, that made the difference. (dictionary.com)
  • c) Wet steam and hot solutions of fluorine, boron or sulphur compounds may have effected the decomposition. (dictionary.com)
  • Phosphates and boron compounds are among the oldest known fire-retardant systems, and they are usually included in proprietary systems used for wood. (freethesaurus.com)
  • RESULTS: Compared with other modifiers studied, decanol gives better stability to diolic molecules in the Kerosene phase and exhibits a reduced negative effect on the extraction of boron. (upc.edu)
  • Recently, we have synthesized several boron-containing small molecules. (elsevier.com)
  • What does the boron do for these molecules? (alzforum.org)
  • when it links to three, boron retains a kind of "vacant space" for interacting with other molecules, Brough explained. (alzforum.org)
  • The boron in our molecules has some peculiar electron properties that might be key to its effectiveness," he added. (alzforum.org)
  • Boron-containing molecules are typically used for catalyzing reactions, but are uncommon in medicine. (alzforum.org)
  • Borate esters are prepared by heating boric acid or related boron oxides with alcohols under conditions where water is removed. (wikipedia.org)
  • Nous avons abouti a des conclusions analogues en comparant les spectres des composes d'addition R{sub 2}SBF{sub 3} en solution dans les sulfures correspondants et a l'etat liquide pur. (osti.gov)
  • All life is derived ultimately from the element carbon, which lies next to boron in the periodic table of elements, their respective atomic numbers being six and five. (thaindian.com)
  • Modification of siloxane coatings with boron and aluminum compounds Khelevina, O. 2012-03-16 00:00:00 Modification of siloxane coatings of protective materials with boron (boric acid, boric anhydride, triethyl borate) and aluminum (aluminum butylate, oxide, hydroxide) compounds was studied with the aim to enhance the fireproofing and physicomechanical properties of the materials. (deepdyve.com)
  • Trimethyl borate is the organoboron compound with the formula B(OCH3)3. (wikipedia.org)
  • Compositions consisting of the reaction product or complex resulting from the mixing of a transition metal compound such as a tetraalkoxy titanium compound and a boron compound such as a trialkyl boron compound are useful in the preparation of catalysts for polymerizing α-olefins exhibiting ultra-high. (google.com)
  • 4. The reaction product or complex of claims 1, 2, or 3 wherein component (a) is titanium tetraethoxide, titanium tetra-n-propoxide, titanium tetra-isopropoxide, titanium tetra-n-butoxide or titanium tetra-(2-ethylhexoxide) and component (b) is boron tribromide. (google.com)
  • The four compounds in the series from chloro[subphthalocyaninato]boron(III) to chloro[subnaphthalocyaninato]boron(III) were synthesized in a one-pot reaction. (emich.edu)
  • Weinheim: Wiley-VCH.CS1 maint: uses authors parameter (link) M.A. Beckett, G.C. Strickland, J.R. Holland, and K.S. Varma, "A convenient NMR method for the measurement of Lewis acidity at boron centres: correlation of reaction rates of Lewis acid initiated epoxide polymerizations with Lewis acidity", Polymer, 1996, 37, 4629-4631. (wikipedia.org)
  • We have been trying to find reaction conditions that allow us to couple two different groups to the diboronated product of this reaction," says Uchiyama, "so that we can prepare compounds like Tamoxifen in a structurally selective fashion. (phys.org)
  • This is without the use of boron compounds, chlorine, sulfur or phosphorous. (cnbc.com)
  • Wittig reagents, Horner-Wadsworth-Emmons reagents and other reagents for converting carbonyl compounds to olefins are listed. (tcichemicals.com)
  • Part One: Naming Ionic Compounds Identifying Ionic Compounds Ionic compounds consist of combinations of positively charged ions called cations (usually metals), and negatively charged ions called anions (usually non-metals). (majortests.com)
  • All of the compounds were then evaluated in vitro for growth inhibition of wild-type M. tuberculosis H₃₇Rᵥ by Dr. Scott G. Franzblau at LSU. (openrepository.com)
  • B 6 O can be synthesized by reducing B 2 O 3 with boron or by oxidation of boron with zinc oxide or other oxidants. (wikipedia.org)
  • Isoelectronic co-doping of semiconductor compounds and alloys with acceptors and deep donors is sued to decrease bandgap, to increase concentration of the dopant constituents in the resulting alloys, and to increase carrier mobilities lifetimes. (osti.gov)
  • The invention disclosed relates to an electrochemical assay which is particularly concerned with an assay for the presence of, or amount of, glycosylated haemoglobin in a blood sample, but which extends to a general assay for detecting the presence of, monitoring the level of or determining the concentration of compounds containing cis-diol groups, such as glycols, nucleic acid components, sugars, polyols, catechols and glycosylated proteins. (google.ca)
  • These compounds are candidate therapeutics for treating a disease or disorder associated with an imbalance in the activity or concentration of cellular arginase I and arginase II enzymes. (justia.com)
  • At the lowest concentration, none of the compounds shows cytotoxicity and they are successfully internalized by the cells, especially compounds 7 and 8 , which exhibit a strong cytoplasmic stain indicating an excellent internalization efficiency. (icmab.es)
  • The compounds were expected to have antimycobacterial activity due to the ability of boron to form charged, reversible tetrahedral complexes and compete for enzyme active-sites. (openrepository.com)
  • This article provides an overview of the recent developments in the area of transition metal complexes featuring metal-boron double bonds. (iospress.com)
  • Most compounds fall in to one of three categories- ionic compounds, molecular compounds, or acids. (majortests.com)
  • The paper offers a method of improving the preferential uptake of a boron cluster compound into cancer cells via their mitochondria. (growkudos.com)
  • To the best of our knowledge, these are the first BODIPY-anionic boron cluster conjugates developed as fluorescent dyes aiming at prospective biomedical applications. (icmab.es)
  • Laboratory decay and mold resistance tests were then performed to determine the efficacy of the compounds against fungal attack. (springer.com)
  • Drysdale JA (1994) Boron treatments for the preservation of wood: A review of efficacy data for fungi and termites. (springer.com)
  • If those studies prove favorable, they will perform experiments to determine the therapeutic efficacy of the compound. (bnl.gov)
  • The formation of carbon-boron bonds is particularly attractive because reactions using compounds bearing these bonds have been widely studied. (phys.org)
  • Moreover, the cytotoxicity and cellular uptake of compounds 5 - 9 have been analyzed in vitro at different concentrations of B (5, 50, and 100 μg B/mL) using HeLa cells. (icmab.es)
  • The exceptional cellular uptake and intracellular boron release, together with the fluorescent and biocompatibility properties, make compounds 7 and 8 good candidates for in vitro cell tracking. (icmab.es)
  • The multiscale model is tested against published in vitro and in vivo measurements of cell survival with and without boron. (mdpi.com)
  • Report presenting the preparation and properties of triethylborane, tri-n-propylborane, and tri-n-butylborane from boron triflouride and the appropriate Grignard reagent. (unt.edu)
  • Boron-Based Compounds offers a summary of the present status and promotes the further development of new boron-containing drugs and advanced materials, mostly boron clusters, for molecular medical diagnostics. (icmab.es)
  • Furthermore, the cellular permeability of the starting BODIPY ( 4 ) was improved after the functionalization with boron clusters. (icmab.es)
  • These related compounds are formed by elements more electronegative than boron and cannot therefore be denoted as borides. (wiley.com)
  • The borides are nonmolecular compounds and knowledge of the crystal structure is consequently of very high importance to characterize a boride phase. (wiley.com)
  • The uses of borides and related compounds are mainly based on the their hardness, chemical inertness, and magnetic and electrical properties. (wiley.com)
  • Anacor Pharmaceuticals in Palo Alto, California, develops boron compounds for antimicrobial uses and was recently purchased by Pfizer. (alzforum.org)
  • B 6 O has a strong covalent nature and is easy to compose at high temperature more than 1973 K. [7] Boron Suboxide has also been reported to exhibit a wide range of superior properties such as high hardness with low density, high mechanical strength, oxidation resistance up to high temperatures as well as its high chemical inertness. (wikipedia.org)
  • Trace Minerals Fertilizer, Chelation Ferrous, Chelation Copper manufacturer / supplier in China, offering Boron Compound Amino Acid Chealted (glycine, methionine, lysine and so on) Fertilizer Grade, Chengdu Amino Acid Potassium Supplier, Copper Amino Acid Chelate Animal Feed and so on. (made-in-china.com)
  • The method is helpful for the analysis of volatile hydrocarbons and polynuclear aromatic compounds. (unt.edu)
  • Scanning electron microscopy images, Raman spectra, and glow discharge optical emission spectroscopy revealed that relatively highly boron-doped domains were primarily corroded and relatively low boron-doped domains remained after electrolysis. (elsevier.com)
  • Activities of poly-boron compounds were compared with 2APB, mono-boron and bis-boron compounds. (omicsonline.org)
  • These experiments revealed that the boron atom in 2APB was crucial for its inhibitory effect. (alzforum.org)
  • The authors then screened a separate library of boron-containing compounds, finding some that were 30 to 60 times more potent than 2APB. (alzforum.org)
  • Structural studies of organoboron compounds .64. (ubc.ca)
  • After analyzing the FTIR spectra of PR-HBPB treated at different temperatures between 220 and 600[degrees]C, the structural changes of boron compounds in the modified resin are further studied by B1s XPS spectra at the higher temperatures. (freethesaurus.com)
  • B 6 O of the α-rhombohedral boron type has been investigated because of its ceramic nature (hardness, high melting point, chemical stability, and low density) as a new structural material. (wikipedia.org)
  • [9] Preliminary first-principle ab initio density functional calculations of the structural properties boron suboxide (B 6 O) suggest that the strength of bonding in B 6 O may be enhanced by the presence of a high electronegativity interstitial in the structure. (wikipedia.org)
  • This unknown is dissolved in ether and extracted with a basic aqueous solution to remove the acidic unknown compound. (majortests.com)
  • This aqueous extract is then made acidic with dilute hydrochloric acid allowing for the isolation of the acidic compound. (majortests.com)