Quaternary Ammonium Compounds: Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with hydrocarbyl groups. These are distinguished from IMINES which are RN=CR2.Benzalkonium Compounds: A mixture of alkylbenzyldimethylammonium compounds. It is a bactericidal quaternary ammonium detergent used topically in medicaments, deodorants, mouthwashes, as a surgical antiseptic, and as a as preservative and emulsifier in drugs and cosmetics.Disinfectants: Substances used on inanimate objects that destroy harmful microorganisms or inhibit their activity. Disinfectants are classed as complete, destroying SPORES as well as vegetative forms of microorganisms, or incomplete, destroying only vegetative forms of the organisms. They are distinguished from ANTISEPTICS, which are local anti-infective agents used on humans and other animals. (From Hawley's Condensed Chemical Dictionary, 11th ed)Trimethyl Ammonium Compounds: QUATERNARY AMMONIUM COMPOUNDS containing three methyl groups, having the general formula of (CH3)3N+R.Iodine Compounds: Inorganic compounds that contain iodine as an integral part of the molecule.Ammonium Compounds: Inorganic compounds that include a positively charged tetrahedral nitrogen (ammonium ion) as part of their structure. This class of compounds includes a broad variety of simple ammonium salts and derivatives.Cetylpyridinium: Cationic bactericidal surfactant used as a topical antiseptic for skin, wounds, mucous membranes, instruments, etc.; and also as a component in mouthwash and lozenges.Cetrimonium Compounds: Cetyltrimethylammonium compounds that have cationic detergent, antiseptic, and disinfectant activities. They are used in pharmaceuticals, foods, and cosmetics as preservatives; on skin, mucous membranes, etc., as antiseptics or cleansers, and also as emulsifiers. These compounds are toxic when used orally due to neuromuscular blockade.Anti-Infective Agents, Local: Substances used on humans and other animals that destroy harmful microorganisms or inhibit their activity. They are distinguished from DISINFECTANTS, which are used on inanimate objects.Glutaral: One of the protein CROSS-LINKING REAGENTS that is used as a disinfectant for sterilization of heat-sensitive equipment and as a laboratory reagent, especially as a fixative.Chlorhexidine: A disinfectant and topical anti-infective agent used also as mouthwash to prevent oral plaque.Drug Resistance, Bacterial: The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).Microbial Sensitivity Tests: Any tests that demonstrate the relative efficacy of different chemotherapeutic agents against specific microorganisms (i.e., bacteria, fungi, viruses).Ammonium Sulfate: Sulfuric acid diammonium salt. It is used in CHEMICAL FRACTIONATION of proteins.Choline: A basic constituent of lecithin that is found in many plants and animal organs. It is important as a precursor of acetylcholine, as a methyl donor in various metabolic processes, and in lipid metabolism.Staphylococcus: A genus of gram-positive, facultatively anaerobic, coccoid bacteria. Its organisms occur singly, in pairs, and in tetrads and characteristically divide in more than one plane to form irregular clusters. Natural populations of Staphylococcus are found on the skin and mucous membranes of warm-blooded animals. Some species are opportunistic pathogens of humans and animals.Drug Resistance, Microbial: The ability of microorganisms, especially bacteria, to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).Ammonium Chloride: An acidifying agent that has expectorant and diuretic effects. Also used in etching and batteries and as a flux in electroplating.Anti-Bacterial Agents: Substances that reduce the growth or reproduction of BACTERIA.Staphylococcus aureus: Potentially pathogenic bacteria found in nasal membranes, skin, hair follicles, and perineum of warm-blooded animals. They may cause a wide range of infections and intoxications.Bacterial Proteins: Proteins found in any species of bacterium.Escherichia coli: A species of gram-negative, facultatively anaerobic, rod-shaped bacteria (GRAM-NEGATIVE FACULTATIVELY ANAEROBIC RODS) commonly found in the lower part of the intestine of warm-blooded animals. It is usually nonpathogenic, but some strains are known to produce DIARRHEA and pyogenic infections. Pathogenic strains (virotypes) are classified by their specific pathogenic mechanisms such as toxins (ENTEROTOXIGENIC ESCHERICHIA COLI), etc.Ammonium Hydroxide: The hydroxy salt of ammonium ion. It is formed when AMMONIA reacts with water molecules in solution.Ammonia: A colorless alkaline gas. It is formed in the body during decomposition of organic materials during a large number of metabolically important reactions. Note that the aqueous form of ammonia is referred to as AMMONIUM HYDROXIDE.Molecular Structure: 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.Nitrogen: An element with the atomic symbol N, atomic number 7, and atomic weight [14.00643; 14.00728]. Nitrogen exists as a diatomic gas and makes up about 78% of the earth's atmosphere by volume. It is a constituent of proteins and nucleic acids and found in all living cells.Cyanates: Organic salts of cyanic acid containing the -OCN radical.Silicon Dioxide: Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.Carbon-Nitrogen Lyases: Enzymes that catalyze the cleavage of a carbon-nitrogen bond by means other than hydrolysis or oxidation. Subclasses are the AMMONIA-LYASES, the AMIDINE-LYASES, the amine-lyases, and other carbon-nitrogen lyases. EC 4.3.Receptor, Cannabinoid, CB1: A subclass of cannabinoid receptor found primarily on central and peripheral NEURONS where it may play a role modulating NEUROTRANSMITTER release.Urea: A compound formed in the liver from ammonia produced by the deamination of amino acids. It is the principal end product of protein catabolism and constitutes about one half of the total urinary solids.Carbon Dioxide: A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.Stevens-Johnson Syndrome: Rare cutaneous eruption characterized by extensive KERATINOCYTE apoptosis resulting in skin detachment with mucosal involvement. It is often provoked by the use of drugs (e.g., antibiotics and anticonvulsants) or associated with PNEUMONIA, MYCOPLASMA. It is considered a continuum of Toxic Epidermal Necrolysis.Silanes: Compounds similar to hydrocarbons in which a tetravalent silicon atom replaces the carbon atom. They are very reactive, ignite in air, and form useful derivatives.Vegetables: A food group comprised of EDIBLE PLANTS or their parts.Plant Oils: Oils derived from plants or plant products.Safflower Oil: An oily liquid extracted from the seeds of the safflower, Carthamus tinctorius. It is used as a dietary supplement in the management of HYPERCHOLESTEROLEMIA. It is used also in cooking, as a salad oil, and as a vehicle for medicines, paints, varnishes, etc. (Dorland, 28th ed & Random House Unabridged Dictionary, 2d ed)Product Packaging: Form in which product is processed or wrapped and labeled. PRODUCT LABELING is also available.Surface Tension: The force acting on the surface of a liquid, tending to minimize the area of the surface. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Micelles: Particles consisting of aggregates of molecules held loosely together by secondary bonds. The surface of micelles are usually comprised of amphiphatic compounds that are oriented in a way that minimizes the energy of interaction between the micelle and its environment. Liquids that contain large numbers of suspended micelles are referred to as EMULSIONS.Surface-Active Agents: Agents that modify interfacial tension of water; usually substances that have one lipophilic and one hydrophilic group in the molecule; includes soaps, detergents, emulsifiers, dispersing and wetting agents, and several groups of antiseptics.Propantheline: A muscarinic antagonist used as an antispasmodic, in rhinitis, in urinary incontinence, and in the treatment of ulcers. At high doses it has nicotinic effects resulting in neuromuscular blocking.Starch Phosphorylase: An enzyme of the PHOSPHORYLASES family that catalyzes the degradation of starch, a mixture of unbranched AMYLOSE and branched AMYLOPECTIN compounds. This phosphorylase from plants is the counterpart of GLYCOGEN PHOSPHORYLASE in animals that catalyzes the reaction of inorganic phosphate on the terminal alpha-1,4-glycosidic bond at the non-reducing end of glucans resulting in the release of glucose-1-phosphate.Ipratropium: A muscarinic antagonist structurally related to ATROPINE but often considered safer and more effective for inhalation use. It is used for various bronchial disorders, in rhinitis, and as an antiarrhythmic.Chromatography, Liquid: Chromatographic techniques in which the mobile phase is a liquid.Mass Spectrometry: An analytical method used in determining the identity of a chemical based on its mass using mass analyzers/mass spectrometers.FloridaInternet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Pseudomonas aeruginosa: A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection.Pseudomonas Infections: Infections with bacteria of the genus PSEUDOMONAS.Pseudomonas: A genus of gram-negative, aerobic, rod-shaped bacteria widely distributed in nature. Some species are pathogenic for humans, animals, and plants.

Deposition of ammonium and nitrate in the roots of maize seedlings supplied with different nitrogen salts. (1/48)

 (+info)

Inhibition of glutamine synthetase by phosphinothricin leads to transcriptome reprograming in root nodules of Medicago truncatula. (2/48)

 (+info)

Seasonal dynamics of ammonia/ammonium-oxidizing prokaryotes in oxic and anoxic wetland sediments of subtropical coastal mangrove. (3/48)

 (+info)

Effects of non-indigenous oysters on microbial diversity and ecosystem functioning. (4/48)

 (+info)

Novel dental adhesive containing antibacterial agents and calcium phosphate nanoparticles. (5/48)

 (+info)

Effects of antibacterial primers with quaternary ammonium and nano-silver on Streptococcus mutans impregnated in human dentin blocks. (6/48)

 (+info)

Comparison of quaternary ammonium-containing with nano-silver-containing adhesive in antibacterial properties and cytotoxicity. (7/48)

 (+info)

Regulatory role of indeterminate domain 10 (IDD10) in ammonium-dependent gene expression in rice roots. (8/48)

 (+info)

A critical issue of bulk heterojunction (BHJ) solar cells is the instability of the morphology of the polymer:fullerene blend over long operation times. We report the synthesis of crosslinkable derivatives of the low bandgap polymer PFDTBT, poly(2,7-(9,9-dialkylfluorene)-alt-(5,5-(4′,7′-di-2-thienyl-2′,1′,3′
Embodiments of the present invention include systems and methods for generating a curvature compensated bandgap voltage reference. In an embodiment, a curvature compensated bandgap reference voltage is achieved by injecting a temperature dependent current at different points in the bandgap reference voltage circuit. In an embodiment, the temperature dependent current is injected in the proportional to absolute temperature (PTAT) and complementary to absolute temperature (CTAT) current generation block of the bandgap circuit. Alternatively, or additionally, the temperature dependent current is injected at the output stage of the bandgap circuit. In an embodiment, the temperature dependent current is a linear piecewise continuous function of temperature. In another embodiment, the temperature dependent current has opposite dependence on temperature to that of the bandgap voltage reference before curvature compensation.
Phylogenetically diverse anammox bacteria have been detected in most of anoxic natural and engineered ecosystems and thus regarded as key players in the global nitrogen cycle. However, ecological niche differentiation of anammox bacteria remains unresolved despite its ecological and practical importance. In this study, the microbial competitions for a common substrate (nitrite) among three anammox species (i.e. "Candidatus Brocadia sinica", "Candidatus Jettenia caeni" and "Candidatus Kuenenia stuttgartiensis") were systematically investigated in nitrite-limited gel-immobilized column reactors (GICR) and membrane bioreactors (MBRs) under different nitrogen loading rates (NLRs). 16 S rRNA gene-based population dynamics revealed that "Ca. J. caeni" could proliferate only at low NLRs, whereas "Ca. B. sinica" outcompeted other two species at higher NLRs in both types of reactors. Furthermore, FISH analysis revealed that "Ca. J. caeni" was mainly present as spherical microclusters at the inner part ...
Metal halide perovskites such as methylammonium lead iodide (CH3NH3PbI3) are generating great excitement due to their outstanding optoelectronic properties, which lend them to application in high-efficiency solar cells and light-emission devices. However, there is currently debate over what drives the second-order electron-hole recombination in these materials. Here, we propose that the bandgap in CH3NH3PbI3 has a direct-indirect character. Time-resolved photo-conductance measurements show that generation of free mobile charges is maximized for excitation energies just above the indirect bandgap. Furthermore, we find that second-order electron-hole recombination of photo-excited charges is retarded at lower temperature. These observations are consistent with a slow phonon-assisted recombination pathway via the indirect bandgap. Interestingly, in the low-temperature orthorhombic phase, fast quenching of mobile charges occurs independent of the temperature and photon excitation energy. Our work ...
Sigma-Aldrich offers abstracts and full-text articles by [Christoph Knuf, Intawat Nookaew, Stephen H Brown, Michael McCulloch, Alan Berry, Jens Nielsen].
Anaerobic ammonium-oxidizing (anammox) bacteria perform an important step in the global nitrogen cycle: oxidizing ammonium and reducing nitrite to form dinitrogen gas in the absence of oxygen. Anammox bacteria from the Planctomycetes phylum have been identified in a variety of natural environments but their role in groundwater ammonium oxidation has been unclear. Recent isotope studies have suggested that anammox bacteria are likely active in ammonium attenuation at contaminated groundwater sites; however, only limited biomarker-based data confirmed their presence prior to this study. I used complimentary molecular and isotope-based methods to assess the communities of anammox performing organisms at three ammonium contaminated groundwater sites in Canada: quantitative real-time PCR (qPCR), denaturing gradient gel electrophoresis (DGGE), DNA sequencing of 16S rRNA genes (with both Sanger and Illumina technologies), and ¹⁵N-tracer incubations. DNA sequencing and qPCR results demonstrated that ...
This paper presents a bandgap reference circuit, which provides a temperature-independent reference voltage with the nominal value adjustable. The design of the adjustable bandgap reference circuit is based on the method of
We here report a simple and efficient method to grow single-layer bismuth nanoparticles (BiNPs) with various sizes on glass substrates. Optimal conditions were found to be 200°C and 0.12 W/cm2 at a growth rate of 6 Å/s, with the deposition time around 40 s. Scanning electron microscope (SEM) images were used to calculate the particle size distribution statistics, and high-resolution X-ray diffraction (XRD) patterns were used to examine the chemical interactions between BiNPs and the substrates. By measuring the transmission spectra within the range of 300 to 1,000 nm, we found that the optical bandgap can be modulated from 0.45 to 2.63 eV by controlling the size of these BiNPs. These interesting discoveries offer an insight to explore the dynamic nature of nanoparticles.
We here report a simple and efficient method to grow single-layer bismuth nanoparticles (BiNPs) with various sizes on glass substrates. Optimal conditions were found to be 200°C and 0.12 W/cm2 at a growth rate of 6 Å/s, with the deposition time around 40 s. Scanning electron microscope (SEM) images were used to calculate the particle size distribution statistics, and high-resolution X-ray diffraction (XRD) patterns were used to examine the chemical interactions between BiNPs and the substrates. By measuring the transmission spectra within the range of 300 to 1,000 nm, we found that the optical bandgap can be modulated from 0.45 to 2.63 eV by controlling the size of these BiNPs. These interesting discoveries offer an insight to explore the dynamic nature of nanoparticles.
Surface Bloch modes induced on three-dimensional dielectric photonic crystals with a complete photonic bandgap are evanescently decaying states at surfaces and have large field overlap with low-index media, resulting in narrow spectrum linewidth and simultaneously a large resonance shift due to a perturbation of the refractive index in the background media. Surface Bloch resonance states are analyzed for ...
An effective description is developed for a metalodielectric photonic bandgap (PBG) material far beyond the quasi-static limit of traditional effective-medium theories. An analytic approach, recently presented by the authors, is further advanced to provide the complete effective permittivity and permeability functions. Reflection and transmission coefficients are presented for both TM and TE oblique plane-wave incidence, based on the determination of the equivalent impedance for each lattice plane in the crystal and the transfer-matrix method for reconstructing the effect of successive lattice planes. An analysis of the semi-infinite and slab observables yields the anisotropic effective refractive index, effective permittivity, and effective permeability, thus completing the macroscopic description of the interaction of electromagnetic waves with the medium. Among the novel aspects of the analysis is the equivalence of our PBG system with a physically dispersive system at ultraviolet frequencies ...
Photoluminescence data are used to obtain the concentration and temperature dependence of the bandgap energies of epitaxial layers of quaternary alloy In Ga Al As for Al concentrations less than 0.6. The samples were grown by MBE without an intervening buffer layer. For an In concentration of 0.1, the transition from a direct to an indirect bandgap material occurs at Al concentration of about 0.5. Coefficients of the temperature dependence of the bandgap energy are also presented ...
An n-type layer of the opposite conduction type composed of n-GaN is formed between a light emitting layer and a p-type cladding layer composed of p-AlGaN. The bandgap of the n-type layer of the opposite conduction type is larger than the bandgap of the light emitting layer and is smaller than the bandgap of the p-type cladding layer.
We then carefully discussed the mechanism of enhanced light absorption ability and photothermal effect of PDA by doping of TEMPO unit via the detailed structural analysis. In general, to improve the light absorption ability of polymeric materials, mainly replied on the decrease in energy bandgap and the increase in electron delocalization, which could be achieved by the construction of donor-acceptor pair structures. In TEMPO-doped PDA system, the spontaneous formation of donor-acceptor microstructures based on the chemical conjugates between TEMPO and DHI, IQ, and their oligomers was established during the polymerization process, which could contribute to lower the energy bandgap and result in the enhancement of light absorption (31-33). To verify this point, we calculated the optical bandgap (Egopt) value of PDA-0 to be ~0.96 eV, and those of PDA-i (i = 1 to 3) were all around ~0.81 eV from the absorption edge of their aqueous solutions in Fig. 2C. Then, we carried out electrochemical cyclic ...
Anammox﻽: Traditionally, all nitrification was thought to be carried out under aerobic conditions, but recently a new type of ammonia oxidation occurring under anoxic conditions was discovered (Strous et al. 1999). Anammox (anaerobic ammonia oxidation) is carried out by prokaryotes belonging to the Planctomycetes phylum of Bacteria. The first described anammox bacterium was Brocadia anammoxidans. Anammox bacteria oxidize ammonia by using nitrite as the electron acceptor to produce gaseous nitrogen (Figure 6). Anammox bacteria were first discovered in anoxic bioreactors of wasterwater treatment plants but have since been found in a variety of aquatic systems, including low-oxygen zones of the ocean, coastal and estuarine sediments, mangroves, and freshwater lakes. In some areas of the ocean, the anammox process is considered to be responsible for a significant loss of nitrogen (Kuypers et al. 2005). However, Ward et al. (2009) argue that denitrification rather than anammox is responsible for ...
Investigation of Proposed Ladderane Biosynthetic Genes from Anammox Bacteria by Heterologous Expression in E. coli. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
KTiOPO4 (KTP) is a classic commercial nonlinear optical (NLO) crystal, but its narrow bandgap (3.52 eV) prevents its practical application in the ultraviolet (UV) region. Many trials to widen the narrow bandgap of KTP have failed in the past few decades. A chemical cosubstitution strategy was implemented to design
98) Synthesis, FT-IR, Bandgap Offset, Polarizability and Hyperpolarizability of 3,4-diamino-6-ehtyl-6H-pyrano[3,2-c]quinoline-2,5-dione (DAPQ) and Cu-2DAPQ as a Promising Organometallic Material: Experimental and Theoretical Studies ...
Although single layers of MoS(2) have a large intrinsic bandgap of 1.8 eV (ref. 16), previously reported mobilities in the 0.5-3 cm(2) V(-1) s(-1 ...
As a part of the field assistance, Dehydration Experts can provide on-site monitoring of all key start-up activities including data collection and review, water dew point testing of outlet gas to ensure product spec is met and glycol sampling/observation for any signs of contamination that may cause severe problems to the facility during operation.. ...
Eventbrite - Prospects presents Childminder Pre Registration Start-up Course (Kent CMS16) - Maidstone - Saturday, 17 February 2018 at Hilton Maidstone, Maidstone, Kent. Find event and ticket information.
AutomotiveNL bevordert een bloeiende Nederlandse automotive sector door zowel nationaal als internationaal de sector te profileren en te representeren bij OEMs, automotive toeleveranciers, koepelorganisaties, clusterorganisaties en overheden. Missie De inhoudelijke focusgebieden zijn Smart Mobility, Green Mobility, Manufacturing en Materials. AutomotiveNL richt zich op innovatie, onderwijs en kennistransfer, validatie en internationalisering. Daarnaast stimuleert ze op de Automotive Campus de komst van nieuwe bedrijven én onderwijsactiviteiten.
Insights from the Worlds Best Medical Minds.Connect With Us to Connect With Them. We are a Digital Health Google LaunchPad Start-up.
Browsing all the available projects from the past years is becoming a big task. A categorized list of the projects will hopefully provide a better overview making this task easier. This is just a start-up, so please add projects and categories to complete this list. ...
Browsing all the available projects from the past years is becoming a big task. A categorized list of the projects will hopefully provide a better overview making this task easier. This is just a start-up, so please add projects and categories to complete this list. ...
TAKAKI Keita ,p,固定床型アナモックスプロセスは,国土交通省B-DASHプロジェクトの平成24年度採択技術の一つである。下水道施設における本技術の導入推進を目的として,熊本市東部浄化センター内に実規模実証施設を建設し,返流水(嫌気性消化汚泥脱水ろ液)からの窒素除去に係る各種データ採取を行なった。本研究成果を基に,国土交通省国土技術政策総合研究所(国総研)にて技術導入に係るガイドラインが策定され,国 … Nihon Enerugii Gakkai Kikanshi Enermix 99(1), 48-52, 2020 J-STAGE ...
The large surplus of crude glycerol, as main low-value waste stream in biodiesel production, has led to the investigation of new possibilities for the production of value-added chemicals from this feedstock. New and efficient (bio-) catalysts are needed that are able to convert glycerol to versatile chemical building blocks. This would contribute to further develop away from a mainly petroleum based, to a sustainable, bio-based industry. One promising group of discussed building block chemicals are dicarbonic acids. Here, we report the efficient synthesis of malate from glycerol using Ustilago trichophora RK089, which was identified in a screening of 74 Ustilaginaceae. For economically feasible production that can compete with existing processes, a high productivity is required. By adaptive laboratory evolution, the growth and production rate were increased by 2.5- and 6.6-fold, respectively. Further medium optimization increased the final titer, yield, and overall production rate to 196 g L−1, 0.82
Objectives: This study was undertaken to examine the influence of partial demineralization of xenogenous dentin on bone formation in an osteoconductive environment. Materials and methods: Sixty dentin blocks, 2-3 mm thick and 4 mm in diameter, were prepared from developing teeth of young pigs. Forty blocks were demineralized in 24% ethylenediaminetetraacetic acid (pH 7.0) for 1, 2, 6 or 12 h. Forty adult rats divided into eight groups with five rats in each group were used. A sagittal midcranial incision was made from the occipital to the frontal region. Through a subperiostal dissection, a pocket was created on each side of the skull. One demineralized block was placed on one side, and a non-demineralized block was placed on the contralateral side, or the pocket was left empty as controls. Thus, eight experimental groups with five rats in each were formed. Results: Resorption increased significantly with increasing degree of demineralization while bone formation increased significantly with ...
Because the TA signal results from combined Pauli blocking and bandgap renormalization effects (44, 49), there are two possible reasons for the increased TA intensities at strong-coupling locations: (i) The absorption above the bandgap is increased by the interlayer CT transitions and an increased TA intensity is due to Pauli blocking and (ii) photoexcitation of CT transitions leads to larger bandgap renormalization effects than excitons. Note that transient bandgap renormalization observed here is due to further modifications of the exciton energy upon photoexcitation beyond the static effect (49, 50). To directly measure the interlayer coupling-dependent absorption at 3.14 eV, we imaged correlated reflection and transmission of 1L-WS2/G on a transparent sapphire substrate (fig. S9). The linear absorption is deduced using approaches described in Materials and Methods. The linear absorption and correlated TAM image are shown in Fig. 4 (C and D). Both linear absorption and transient absorption ...
Bandgap is the term used for the amount of energy needed to release electrons in semiconductor materials so that the electrons can move freely, enabling the flow of electricity.
Malic Acid is a natural derivative of apple pomace. In human physiology and nutrition, malic acid is a co-factor in the Krebs cycle. Research has shown that Malic Acid is a most potent aluminum detoxifier and assists in the removal of aluminum from brain tissue. Each capsule contains: 600 mg Malic Acid Contains no corn, soy, yeast, wheat, dairy or other common food or chemical allergens. Suggested Use: Take 1 or 2 capsules daily, or as directed by a health care professional.
Silicon technologyhas been seekingfor a monolithic solution for a chip where data processing and data communication is performed in the CMOS part and the photonic component, respectively. Traditionally, silicon has been widely considered for electronic applications but not for photonic applications due to its indirect bandgap nature. However, band structure engineering and manipulation through alloying Si with Ge and Sn has opened new possibilities. Theoretical calculations show that it is possible to achieve direct transitions from Ge ifit is alloyed with Sn. Therefore, a GeSn system is a choice to get a direct bandgap. Extending to ternary GeSnSi and quaternary GeSnSiCstructures grown on Si wafers not only makes the bandgap engineering possible but also allowsgrowing lattice matched systems with different strain and bandgaps located in the infrared region. Different heterostructures can be designed and fabricated for detecting lightas photonic sensing oremitting the light as lasers. Alloying ...
UV light.. Major efforts have been made to improve titanias absorption of visible light or develop visible-light sensitive materials in general.. Methods used for titania, including metal ion doping, carbon doping, nitrogen doping and hydrogenation usually require stringent conditions to obtain the modified TiO2 such as elevated temperature or high pressure.. In their innovative paper published in Chemical Communications, a Royal Society of Chemistry journal, the researchers observed that when TiO2 particles are mixed with graphene quantum dots, the resulting composite absorbs visible light by a quantum-confined bandgap narrowing mechanism.. "We were really excited to discover this: when two UV absorbing materials, namely TiO2 and graphene quantum dots, were mixed together, they started to absorb in the visible range, more significantly, the bandgap can be tuned by the size of graphene quantum dots," says Dr Li.. "We named the phenomenon quantum-confined bandgap narrowing and this mechanism ...
Hugestone is a professional leader China Malic acid Supplier, Malic acid Manufacturer in China, Malic acid Wholesale manufacturer with high quality and reasonable price. Welcome to contact us - Hugestone Enterprise Co., Ltd.
Definition of malic acid in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is malic acid? Meaning of malic acid as a legal term. What does malic acid mean in law?
A series of TaOxNy photoelectrodes were deposited on F:SnO2 (FTO) substrates by DC reactive sputtering at room temperature, under a mixture of Ar, N-2 and O-2. The effects of the O-2 partial pressure during deposition (Po-2) on the films crystallinity, their chemical composition, their morphology as well as their absorption and photoelectrochemical properties have been investigated. The increase of PO2 led to the modification of film crystallinity, which evolved from a semicrystalline Ta3N5 structure to an amorphous state. The increase of the Po-2 also led to the increases of the oxygen content, of the bandgap energy and of the films roughness. Preliminary photoelectrochemical (PEC) investigations have been performed through current-voiltage measurements. An optimal Po-2 has been highlighted, corresponding to a tradeoff between, on the one hand, the amorphization of the films -which degrades PEC performances - and on the other, the tuning of the chemical composition as well as of the bandgap energy. (C)
A semiconductive conjugated copolymer comprises at least two chemically different monomer units which, when existing in their individual homopolymer forms, have different semiconductor bandgaps. The proportion of said at least two chemically different monomer units in the copolymer is selected to control the semiconductor bandgap of the copolymer so as to control the optical properties of the copolymer. The copolymer is formed in a manner enabling it to be laid down as a film without substantially affecting the luminescent characteristics of the copolymer and is stable at operational temperature. The semiconductor bandgap may be spatially modulated so as to increase the quantum efficiency of the copolymer when excited to luminesce, to select the wavelength of radiation emitted during luminescence or to select the refractive index of the copolymer.
On the basis of the cross-case analysis, we identified four factors that facilitated program start-up and four factors that challenged program start-up. Facilitating factors included 1) pre-existing program infrastructure, 2) partnerships, 3) clinical expertise, and 4) program champions. Factors challenging program start-up included 1) contracts with endoscopists, 2) resources for treating medical complications of screening and for cancer treatment, 3) administrative barriers, and 4) resource limitations. Additionally, preplanning was critical, allowing programs to efficiently initiate activities once funds became available ...
ProHealths Fibro Complete Multi with Malic Acid is specially formulated to promote energy and vitality, and to maintain a healthy immune system.
Press release - GlobeMetrix - Global Malic Acid Market 2017 - Isegen South Africa, Jinhu Lile, Miles Chemical - published on openPR.com
Eventbrite - Markham Small Business Centre presents Markham Business Start-Up Requirements Infosession @ Job Skills - Thursday, 20 July 2017 at Job Skills , Markham, ON. Find event and registration information.
Before a new food comes to market, the idea of that new food must be planted and pruned. How to fashion that idea so that it has the best chance of success? Thats were the data machine of Bulu Box comes in.
Bionomic Industries, Inc., a leading manufacturer of scrubbing equipment and ìprepackagedî scrubber systems, has recently designed, manufactured, ...
Kanav Kahol noted that despite the similarities between most medical devices in their computer displays and circuits, their packaging made them unduly co...
To protect your privacy, your account will be locked after 6 failed attempts. After that, you will need to contact Customer Service to unlock your account.. You have 4 remaining attempts.. You have 3 remaining attempts.. You have 2 remaining attempts.. You have 1 remaining attempt.. Contact Customer Service ...
To protect your privacy, your account will be locked after 6 failed attempts. After that, you will need to contact Customer Service to unlock your account.. You have 4 remaining attempts.. You have 3 remaining attempts.. You have 2 remaining attempts.. You have 1 remaining attempt.. Contact Customer Service ...
Before starting an art business, either in the field of art, crafts or design, it is essential that you sit down and ask yourself some really searching business questions. You need to be honest with your answers because not doing so will only result in failure - yours.
In deze masterthesis werd het mechanisme achter de start van celgroei bestudeerd in gist via fundamenteel biologisch onderzoek. Kinasen, een bepaald type eiwitten, lijken betrokken te zijn bij het linken van celgroei met de beschikbaarheid van voeding.
The Italian start-up has developed and patented a new dog waste bag, made up of a fully compostable material and characterized by a novel closable sys... See more ...
A Brussels-based start-up active in the community car sharing services is currently testing a new concept to deliver energy and soft mobility as a ser... See more ...
Quaternary ammonium compoundsEdit. Quaternary ammonium compounds ("quats"), such as benzalkonium chloride, are a large group of ... Alcohol and alcohol plus Quaternary ammonium cation based compounds comprise a class of proven surface sanitizers and ... "In vitro Antifungal Efficacy of Biguanides and Quaternary Ammonium Compounds against Cleanroom Fungal Isolates". PDA J Pharm ... Inorganic compoundsEdit. ChlorineEdit. This group comprises aqueous solution of chlorine, hypochlorite, or hypochlorous acid. ...
This removed ammonia and ammonium compounds. The water often contained dissolved lime to aid the removal of ammonia. The water ...
Neef, C.; Oosting, R.; Meijer, D. K. F (1984). "Structure-pharmacokinetics relationship of quaternary ammonium compounds". ... Banus, M. D.; Bragdon, R. W.; Gibb, T. R. P. (1952). "Preparation of quaternary ammonium borohydrides from sodium and lithium ... TMA salts do possess some of the phase-transfer catalytic properties that are characteristic of quaternary ammonium compounds, ... Burn, J. H.; Dale, H. H. (1915). "The action of certain quaternary ammonium bases". J. Pharmacol. Exp. Ther. 6: 417-438. ...
amine derivatives: ammonia and ammonium salts, urea. Containing reduced nitrogen, these compounds are components of fertilizers ... All of these compounds enter into the nitrogen cycle. As a consequence, an excess of Nr can affect the environment relatively ... Reactive nitrogen ("Nr") is a term used for a variety of nitrogen compounds that support growth directly or indirectly. ... In the environmental context, reactive nitrogen compounds include the following classes: oxide gases: nitric oxide, nitrogen ...
The quaternary ammonium compound Dimethyloctadecyl (3-trimethoxysilyl propyl) ammonium chloride (Si-QAC) has been found to have ... Many other quaternary ammonium compounds are known to have antimicrobial properties (e.g. alkyldimethylbenzylammonium chloride ... Ioannou, C.; Hanlon, G.; Denyer, S. (2007). "Action of Disinfectant Quaternary Ammonium Compounds against Staphylococcus aureus ... Silver compounds and silver ions also have been known to show antimicrobial properties and have been used in a wide range of ...
In compound semiconductor processing, phosphoric acid is a common wet etching agent: for example, in combination with hydrogen ... Thomas, W. P. and Lawton, W. S. "Stable ammonium polyphosphate liquid fertilizer from merchant grade phosphoric acid" U.S. ... Orthophosphoric acid refers to phosphoric acid, which is the IUPAC name for this compound. The prefix ortho- is used to ... Store away from all incompatible chemicals and compounds. Keep away from food and foodstuffs. Ensure any solid material is kept ...
Typically salts of ammonium compounds exhibit the following order of solubility in water: primary ammonium (RNH+. 3) , ... substituted-ammonium. carboxylate salt. →. d. e. h. y. d. r. a. t. i. o. n. h. e. a. t. N. ,. R. 2. R. 1. ,. −. C. O. ‖. −. R. ... Reduction of nitro compounds Nitro compounds Can be accomplished with elemental zinc, tin or iron with an acid. ... ˈæmiːn/,[1][2] UK also /ˈeɪmiːn/)[3] are compounds and functional groups that contain a basic nitrogen atom with a lone pair. ...
Examples of such compounds include: ammonium perchlorate, ammonium nitrate, formamide, dinitrogen tetroxide, alprazolam, ... whereas ammonium chloride (sal ammoniac), and ammonium sulfate are found in volcanic districts; crystals of ammonium ... A storage vessel capable of 250 psi (1.7 MPa) is suitable to contain the liquid.[95] Ammonium compounds should never be allowed ... The salts produced by the action of ammonia on acids are known as the ammonium salts and all contain the ammonium ion (NH4+).[ ...
Related compounds. Ammonium carbonate Except where otherwise noted, data are given for materials in their standard state (at 25 ... Potassium carbonate is the inorganic compound with the formula K2CO3. It is a white salt, which is soluble in water. It is ... It is not suitable for acidic compounds, but can be useful for drying an organic phase if one has a small amount of acidic ... H. Schultz, G. Bauer, E. Schachl, F. Hagedorn, P. Schmittinger (2005). "Potassium Compounds". Ullmann's Encyclopedia of ...
The fish provide it with ammonium, nitrates, and phosphorus compounds. Coral heads with resting grunts experience significantly ...
A related compound is ceric ammonium sulfate. The solubility of Ce(IV) in methanesulfonic acid is approximately 10 times the ... When ceric compounds are reduced, so-called cerous compounds are formed. The reaction taking place is: Ce4+ + e− → Ce3+ The ... Cerium(IV) sulfate, also called ceric sulfate, is an inorganic compound. It exists as the anhydrous salt Ce(SO4)2 as well as a ... ISBN 0-8493-0487-3. Mariappan Periasamy, Ukkiramapandian Radhakrishnan "Cerium(IV) Ammonium Sulfate" Encyclopedia of Reagents ...
Quaternary ammonium compounds. *Alcohols. Hidden categories: *CS1 maint: Uses authors parameter. *Articles without KEGG source ... In foodstuffs the compound is often present as phosphatidylcholine. References[edit]. *^ "Chemical Safety Information from ... Choline chloride is an organic compound with the formula (CH3)3NCH2CH2OH]Cl. It is bifunctional, containing both quaternary ... It forms a deep eutectic solvent with urea, ethylene glycol, glycerol, and many other compounds. ...
The ammonium and sulphur compounds were especially damaging to the environment. In 1820, Accum began demanding legal measures ... Experiments and Observations on the Compound of Sulphur and Phosphorus and the dangerous Explosions it makes when exposed to ... which included tar and sulphur compounds. These were typically buried or dumped into nearby waterways. ...
... and the related compounds isolane, pirimicarb and triazamate. The quaternary ammonium compounds neostigmine finds ...
... is a compound with formula NH4C5H8NO4. It is an ammonium acid salt of glutamic acid. It has the E number ...
... is a choline carbamate and a positively charged quaternary ammonium compound.[2] It is not well absorbed in the ... "PubChem Compound. Retrieved 6 March 2014.. *^ Sanders KM, Zhu MH, Britton F, Koh SD, Ward SM (February 2012). "Anoctamins and ...
Chemical compounds[change , change source]. Sulfur compounds are chemical compounds containing sulfur ions. Sulfur comes in ... Ammonium sulfate, used in fertilizers. *Barium sulfate, used to take X-rays of digestive system ... Other sulfur compounds[change , change source]. Sulfur(I) compounds. *Sulfur(I) chloride, yellow liquid ... Sulfur(IV) compounds. *Sulfur tetrafluoride, colorless toxic gas. Sulfur(V) compounds. *Disulfur decafluoride, colorless toxic ...
"Distribution of new quaternary ammonium compounds, solorinine and peltigerine, in the peltigerales". Bryologist. 102 (2): 196- ... Peltigera leucophlebia contains the compounds tenuiorin and methyl orsellinate, which are inhibitory to the enzyme 15- ...
... because most of crops are nitrate-phylic but not ammonium-philic. It is easy to generate ammonium from organic fertilizer by ... and Nitrospira spp., is particularly inhibited by the presence of organic compounds (Jensen 1950; Quastel and Scholefield 1951 ... Conventional hydroponics cannot use organic fertilizers because organic compounds contained in hydroponic solution inhibit the ...
Various nitrates have been used (nitre, potassium nitrate, barium nitrate, ammonium nitrate). The explosive was patented by ... so additional oxygen is provided by mixing a nitrate compound with the guncotton. ...
The use of the alternative names imonium compounds and immonium compounds is discouraged. Aza-Cope rearrangement Beckmann ... Ammonium IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: (2006-) " ... "iminium compounds". IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). Online corrected version: ( ...
It can be prepared by adding ammonium carbonate to rubidium hydroxide. It is used in some kinds of glass-making by enhancing ... Rubidium carbonate, Rb2CO3, is a convenient compound of rubidium; it is stable, not particularly reactive, and readily soluble ...
... is a compound with formula NH4(C2H4(OH)COO). It is the ammonium salt of lactic acid. It has mild anti- ... Ammonium lactate is the chemical combination of lactic acid and ammonium hydroxide. It is used as a skin moisturizer lotion to ... Lac-Hydrin specially formulates 12% lactic acid, neutralized with ammonium hydroxide, as ammonium lactate to provide a lotion ... This article about an organic compound is a stub. You can help Wikipedia by expanding it.. *v ...
... is also the archaic name for the chemical compound ammonium chloride. The Romans called the ammonium chloride ... In any case, that salt ultimately gave ammonia and ammonium compounds their name. It typically forms as encrustations formed by ... Sal ammoniac (ammonium chloride) was the electrolyte in Leclanche cells, a forerunner of the dry battery; a carbon rod and a ... Sal ammoniac is a rare mineral composed of ammonium chloride, NH4Cl. It forms colorless, white, or yellow-brown crystals in the ...
... , also known as hyamine is a synthetic quaternary ammonium salt. This compound is an odorless white solid ... Being a quaternary ammonium salt, it is more toxic than negatively charged surfactants. However, in a two-year study on rats, ...
Ammonium nitrogen was shown to foster arginine and amides and lead to a large increase of free guanidine compounds, whereas in ... Ammonium and nitrate as nitrogen sources for Pinus radiata and Picea glauca. Soil Sci. Soc. Amer. Proc. 32(6):879-884. ... Conifer is a Latin word, a compound of conus (cone) and ferre (to bear), meaning "the one that bears (a) cone(s)". ... Conifers can absorb nitrogen in either the ammonium (NH4+) or nitrate (NO3−) form, but the forms are not physiologically ...
... quaternary ammonium compound meaning. quaternary ammonium compound sense. quaternary ammonium compound FAQ. quaternary ammonium ... Explain quaternary ammonium compound. What is quaternary ammonium compound? ... quaternary ammonium compound. Search Dictionary: quaternary ammonium compound Definition. *(n) a compound derived from ammonium ... quaternary ammonium compound. English Dictionary -> Letter Q -> ... quaternary ammonium compound Synonyms. *quaternary ammonium ...
Browse fuzing.com to find Cetyl Trimethyl Ammonium Bromide(,99%) sellers, suppliers, wholesalers, companies, manufacturers, ... hexadecyl trimethyl ammonium bromide. Classification: Quaternary Ammonium Compound Cas No. : 57-09-0 Molecular Formula: C16H33( ... cetyl trimethyl ammonium cetyl trimethyl ammonium bromide quaternary ammonium Cetyl Trimethyl Ammonium Bromide Synonym: ... Cetyl Trimethyl Ammonium Bromide(,99%). You May Also Be Interested In: ammonium bromide bromide ...
Alfa Aesar 1kg Ammonium Hydroxide, ACS, 28.0-30.0%NH™, Alfa Aesar General Purpose Concentrated Ammonium Hydroxide ...
... is a cationic quaternary ammonium compound used in some types of mouthwashes , toothpastes , lozenges , throat sprays, breath ...
... from ammonium cyanate in 1828 was the first generally accepted laboratory synthesis of a naturally occurring organic compound ... Other articles where Ammonium cyanate is discussed: urea: …German chemist Friedrich Wöhler ... In chemical compound: Historical developments. …to make the inorganic substance ammonium cyanate. To his complete surprise, he ... obtained a product that had the same molecular formula as ammonium cyanate but was instead the well-known organic compound urea ...
... sensitized with a mixture of ferric ammonium citrate and potassium ferricyanide, which is then exposed to light. In the areas ... Other articles where Ferric ammonium citrate is discussed: blueprint: … ... sensitized with a mixture of ferric ammonium citrate and potassium ferricyanide, which is then exposed to light. In the areas ...
Ammonium phosphate refers to three different chemical compounds, all of which are formed by the reaction of ammonia with ... phosphoric acid and have the general formula [NH4]x[H3−xPO4], where 1 ≤ x ≤ 3: Ammonium dihydrogenphosphate, [NH4][H2PO4] ... Diammonium phosphate, [NH4]2[HPO4] Ammonium phosphate, [NH4]3[PO4]. ...
Trimethyl ammonium compounds are a type of quaternary ammonium compound with three methyl groups at the nitrogen, with a more ... Carnitine and its derivatives Choline and its derivatives Methacholine Muscarine Trimethylglycine Trimethyl ammonium compounds ...
Quaternary ammonium compounds 1 and 3 (see mono- and bifunctional quaternary ammonium salts tested in this study, Figure 1) ... Antimicrobial Polyethylene through Melt Compounding with Quaternary Ammonium Salts. Fernanda F. Rossetti,1 Konstantin Siegmann, ... The quaternary ammonium group is at the surface. (b) Biquat entangled with a polyethylene chain. Both quaternary ammonium ... Quaternary ammonium compounds (quats) can have biocidal properties and attempts to immobilize quats onto surfaces have been ...
Quaternary ammonium compounds, benzyl-C20-22-alkyldimethyl, chlorides * Quaternary ammonium compounds, benzyl-C20-22- ... Quaternary ammonium compounds, benzyl-C20-22-alkyldimethyl, chlorides ↓Other names: Regulatory process names [2] ...
The two supporting studies are performed with quaternary ammonium compound C12 and quaternary ammonium compound C14 (both ... Three algae toxicity studies are available for various Quaternary ammonium compounds, alkylbis(hydroxyethyl)methyl, chlorides. ... with Quaternary ammonium compounds, C12-18-alkylbis(hydroxyethyl)methyl, chlorides using river water. Effect concentrations are ... The concentrations of Quaternary ammonium compounds, C12 -18 -alkylbis(hydroxyethyl)methyl, chlorides were analysed and the ...
Stable aqueous compositions of silane quaternary ammonium compounds are provided by diluting an alkanol solution of the silane ... quaternary ammonium compound in water with at least one nonionic surfacta ... of silane quaternary ammonium compounds are provided by diluting an alkanol solution of the silane quaternary ammonium compound ... propyloctadecyldimethyl ammonium chloride. 16. The composition of claim 11, wherein said silane quaternary ammonium compound is ...
Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with ... Typically employed as the cetylpyridinium chloride salt, this compound is commonly used as an active ingredient in various over ...
QUATERNARY AMMONIUM COMPOUNDS, BENZYL-C8-18-ALKYLDIMETHYL, CHLORIDES can be found in 3 products. ... A peer-reviewed publication reports some quaternary ammonium compounds cause reproductive toxicity in animals. ... A peer-reviewed publication reports some quaternary ammonium compounds cause reproductive toxicity in animals. ... Quaternary Ammonium Disinfectants Cause Subfertility in Mice by Targeting both Male and Female Reproductive Processes. ...
The paper products contain a vegetable oil based quaternary ammonium chemical softening compound. Examples of preferred ... vegetable oil based quaternary ammonium chemical softening compounds include diester di(oleyl)dimethyl ammonium chloride ( ... and the di-substituted versus mono-substituted long chain hydrocarbyl substituent ratio in the quaternary ammonium compounds. ... DEDODMAC) (i.e., di(octadec-z-9-eneoyloxyethyl)dimethyl ammonium chloride) derived from canola oil and/or high oleic safflower ...
Quaternary ammonium compounds, di-C16-18-alkyldimethyl, chlorides. EC / List no: 295-835-2 CAS no: 92129-33-4 ...
... 26.04.2017 ... Ammonium »Arabidopsis thaliana »Metabolism »ammonia »anticarcinogenic »glucosinolates »greenhouse »nitrate »nitrogen »nitrous ... Further reports about: , Ammonium , Arabidopsis thaliana , Metabolism , ammonia , anticarcinogenic , glucosinolates , ... A researcher at the UPV/EHU-University of the Basque Country has studied the properties produced due to feeding with ammonium ...
Name of test material (as cited in study report): Quaternary ammonium compounds, (C16-18 and C18-unsatd. alkyl) trimethyl, ... C16-C18 and C18 unsaturated alkyl trimethyl ammonium chloride and SDA Reporting Number: 11-045-00. ...
... Paula A. ... "Physiological changes induced by the quaternary ammonium compound benzyldimethyldodecylammonium chloride on Pseudomonas ... T. E. Cloete, "Resistance mechanisms of bacteria to antimicrobial compounds," International Biodeterioration & Biodegradation, ...
Get Quaternary Ammonium Compounds Spectrum Chemical. SpectrumChemical.com carries a full line of fine chemicals, lab appliances ... Quaternary Ammonium Compounds Quaternary Ammonium Compounds Find a wide selection of quaternary ammonium compounds at Spectrum ... Spectrum specializes in providing the top quarternary ammonium compounds but if you do not see the product, grade or form of ...
... with German, Dutch, French, Italian, and Spanish translations and search. ... Sponsor an extended definition for quaternary ammonium compound for as little as $10 per month. quaternary ammonium compound. ... quaternary ammonium compound. noun *(chemistry) An amine derivative, containing four radicals, of general formula R1R2R3R4-N+X- ...
Quaternary ammonium compounds. These quarternary ammonium compounds (QACs) were identified for action under the Chemicals ... For general inquiries, please contact us and use the subject line "Quaternary ammonium compounds s.46 inquiry". ... refer to the Guidance manual for completing the Notice with respect to certain quaternary ammonium compounds in Canadian ...
US3497482A - Polymers of quaternary ammonium compounds - Google Patents. Polymers of quaternary ammonium compounds Download PDF ... US3497482A 1963-10-14 1963-10-14 Polymers of quaternary ammonium compounds Expired - Lifetime US3497482A (en) Priority ... United States Patent 3,497,482 POLYMERS 0F QUATERNARY AMMONIUM COMPOUNDS Jesse C. H. Hwa, Stamford, Conn., assignor to Rohm & ... Examples of comonomers that may be polymerized with the quaternary ammonium sulfo monomer include the vinyl aromatic compounds ...
A] 0.1% ammonium acetate in water (pH unadjusted): [B] 0.1% ammonium acetate in acetontrile; (10:90, A:B). ...
  • Ammonium sulfide , also known as the " stink bomb " is made up of a solution of ammonium sulfide in water , sealed inside a glass ampoule (a small bottle-like container used to store a liquid securely). (wikipedia.org)
  • The cuticle of the thistle plant controls its degree of elasticity by regulating the degree of hydration of constituent trihydroxy fatty acids compounds. (asknature.org)
  • Now that we know the structure of an atom, we can explore how atoms combine to form either molecular or ionic compounds. (coursera.org)
  • However, the biocidal polymer used was based on amino substituted methacrylate and did not contain quaternary ammonium moieties [ 14 ]. (hindawi.com)
  • The objective of this study was to synthesize low viscosity ionic dimethacrylate monomers (IDMAs) that contain quaternary ammoniums groups (antimicrobial functionalities) and are compatible with existing dental dimethacrylate-based monomers. (reedforiowa.com)
  • Disineer Disinfection is one of the most reliable Object Surface Disinfectant manufacturers and suppliers in China, welcome to wholesale compound double-chain quaternary ammonium salt disinfectant at a good price from our factory, and get free sample through our website. (disineers.com)
  • The tissue softness is further enhanced by controlling the purity of the fatty acyl groups and the di-substituted versus mono-substituted long chain hydrocarbyl substituent ratio in the quaternary ammonium compounds. (google.co.uk)
  • wherein the R 2 portion of the softening compound is derived from C 14 -C 24 fatty acyl groups having an Iodine Value of from 105 to about 180, wherein said fatty acyl groups have a cis/trans isomer weight ratio greater than about 80:20, and wherein the majority of said fatty acyl groups are derived from vegetable oil sources. (google.co.uk)