Azides: Organic or inorganic compounds that contain the -N3 group.Anions: Negatively charged atoms, radicals or groups of atoms which travel to the anode or positive pole during electrolysis.Sodium Azide: A cytochrome oxidase inhibitor which is a nitridizing agent and an inhibitor of terminal oxidation. (From Merck Index, 12th ed)Anion Transport Proteins: Membrane proteins whose primary function is to facilitate the transport of negatively charged molecules (anions) across a biological membrane.Organic Anion Transporters: Proteins involved in the transport of organic anions. They play an important role in the elimination of a variety of endogenous substances, xenobiotics and their metabolites from the body.Click Chemistry: Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.Organic Anion Transporters, Sodium-Independent: A subclass of ORGANIC ANION TRANSPORTERS that do not rely directly or indirectly upon sodium ion gradients for the transport of organic ions.Voltage-Dependent Anion Channels: A family of voltage-gated eukaryotic porins that form aqueous channels. They play an essential role in mitochondrial CELL MEMBRANE PERMEABILITY, are often regulated by BCL-2 PROTO-ONCOGENE PROTEINS, and have been implicated in APOPTOSIS.Superoxides: Highly reactive compounds produced when oxygen is reduced by a single electron. In biological systems, they may be generated during the normal catalytic function of a number of enzymes and during the oxidation of hemoglobin to METHEMOGLOBIN. In living organisms, SUPEROXIDE DISMUTASE protects the cell from the deleterious effects of superoxides.Alkynes: Hydrocarbons with at least one triple bond in the linear portion, of the general formula Cn-H2n-2.Chlorides: Inorganic compounds derived from hydrochloric acid that contain the Cl- ion.Voltage-Dependent Anion Channel 1: Voltage-dependent anion channel 1 is the major pore-forming protein of the mitochondrial outer membrane. It also functions as a ferricyanide reductase in the PLASMA MEMBRANE.Cyanides: Inorganic salts of HYDROGEN CYANIDE containing the -CN radical. The concept also includes isocyanides. It is distinguished from NITRILES, which denotes organic compounds containing the -CN radical.Bromides: Salts of hydrobromic acid, HBr, with the bromine atom in the 1- oxidation state. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)Anion Exchange Resins: High-molecular-weight insoluble polymers that contain functional cationic groups capable of undergoing exchange reactions with anions.Hydrogen-Ion Concentration: The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH = log 1/2[1/(H+)], where (H+) is the hydrogen ion concentration in gram equivalents per liter of solution. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Kinetics: The rate dynamics in chemical or physical systems.Voltage-Dependent Anion Channel 2: Voltage-dependent anion channel 2 is a low abundance mammalian isoform of VDAC that interacts with the inactive form of BAK PROTEIN.4,4'-Diisothiocyanostilbene-2,2'-Disulfonic Acid: An inhibitor of anion conductance including band 3-mediated anion transport.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.Biological Transport: The movement of materials (including biochemical substances and drugs) through a biological system at the cellular level. The transport can be across cell membranes and epithelial layers. It also can occur within intracellular compartments and extracellular compartments.Iodides: Inorganic binary compounds of iodine or the I- ion.p-Aminohippuric Acid: The glycine amide of 4-aminobenzoic acid. Its sodium salt is used as a diagnostic aid to measure effective renal plasma flow (ERPF) and excretory capacity.4-Acetamido-4'-isothiocyanatostilbene-2,2'-disulfonic Acid: A non-penetrating amino reagent (commonly called SITS) which acts as an inhibitor of anion transport in erythrocytes and other cells.Bicarbonates: Inorganic salts that contain the -HCO3 radical. They are an important factor in determining the pH of the blood and the concentration of bicarbonate ions is regulated by the kidney. Levels in the blood are an index of the alkali reserve or buffering capacity.Cyclization: Changing an open-chain hydrocarbon to a closed ring. (McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Sulfates: Inorganic salts of sulfuric acid.Hydrogen Peroxide: A strong oxidizing agent used in aqueous solution as a ripening agent, bleach, and topical anti-infective. It is relatively unstable and solutions deteriorate over time unless stabilized by the addition of acetanilide or similar organic materials.Oxidation-Reduction: A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471).Superoxide Dismutase: An oxidoreductase that catalyzes the reaction between superoxide anions and hydrogen to yield molecular oxygen and hydrogen peroxide. The enzyme protects the cell against dangerous levels of superoxide. EC 1.15.1.1.Dinitrophenols: Organic compounds that contain two nitro groups attached to a phenol.SLC4A Proteins: Bicarbonate transporters that move BICARBONATE IONS in exchange of CHLORIDE IONS or SODIUM IONS across membranes. They regulate acid-base HOMEOSTASIS, cell volume and intracellular pH. Members include CHLORIDE-BICARBONATE ANTIPORTERS (SLC4A1, 2, 3, and 9); SODIUM-COUPLED BICARBONATE TRANSPORTERS (SLC4A4 and 5, 7, 8 and 10); and a sodium borate cotransporter (SLC4A11 protein).PhotochemistryAscorbate Oxidase: An enzyme that converts ascorbic acid to dehydroascorbic acid. EC 1.10.3.3.Biological Transport, Active: The movement of materials across cell membranes and epithelial layers against an electrochemical gradient, requiring the expenditure of metabolic energy.Fluorides: 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.Sulfobromophthalein: A phenolphthalein that is used as a diagnostic aid in hepatic function determination.Adenosine Triphosphate: An adenine nucleotide containing three phosphate groups esterified to the sugar moiety. In addition to its crucial roles in metabolism adenosine triphosphate is a neurotransmitter.Catalase: An oxidoreductase that catalyzes the conversion of HYDROGEN PEROXIDE to water and oxygen. It is present in many animal cells. A deficiency of this enzyme results in ACATALASIA.Probenecid: The prototypical uricosuric agent. It inhibits the renal excretion of organic anions and reduces tubular reabsorption of urate. Probenecid has also been used to treat patients with renal impairment, and, because it reduces the renal tubular excretion of other drugs, has been used as an adjunct to antibacterial therapy.Chloride Channels: Cell membrane glycoproteins that form channels to selectively pass chloride ions. Nonselective blockers include FENAMATES; ETHACRYNIC ACID; and TAMOXIFEN.PeroxidasesElectron Spin Resonance Spectroscopy: A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.Spectrophotometry: The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.Free Radicals: Highly reactive molecules with an unsatisfied electron valence pair. Free radicals are produced in both normal and pathological processes. They are proven or suspected agents of tissue damage in a wide variety of circumstances including radiation, damage from environment chemicals, and aging. Natural and pharmacological prevention of free radical damage is being actively investigated.Organic Anion Transport Polypeptide C: An organic anion transporter found in human liver. It is capable of transporting a variety organic anions and mediates sodium-independent uptake of bile in the liver.Copper: A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.Catalysis: The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.Nitrates: Inorganic or organic salts and esters of nitric acid. These compounds contain the NO3- radical.Formates: Derivatives of formic acids. Included under this heading are a broad variety of acid forms, salts, esters, and amides that are formed with a single carbon carboxy group.Thiocyanates: Organic derivatives of thiocyanic acid which contain the general formula R-SCN.Cations: Positively charged atoms, radicals or groups of atoms which travel to the cathode or negative pole during electrolysis.Ion Channels: Gated, ion-selective glycoproteins that traverse membranes. The stimulus for ION CHANNEL GATING can be due to a variety of stimuli such as LIGANDS, a TRANSMEMBRANE POTENTIAL DIFFERENCE, mechanical deformation or through INTRACELLULAR SIGNALING PEPTIDES AND PROTEINS.Binding Sites: The parts of a macromolecule that directly participate in its specific combination with another molecule.Cell Membrane: The lipid- and protein-containing, selectively permeable membrane that surrounds the cytoplasm in prokaryotic and eukaryotic cells.Temperature: The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.Calixarenes: Phenolic metacyclophanes derived from condensation of PHENOLS and ALDEHYDES. The name derives from the vase-like molecular structures. A bracketed [n] indicates the number of aromatic rings.Stereoisomerism: The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)Oxygen: An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration.Neutrophils: Granular leukocytes having a nucleus with three to five lobes connected by slender threads of chromatin, and cytoplasm containing fine inconspicuous granules and stainable by neutral dyes.Hydroxides: Inorganic compounds that contain the OH- group.Peroxidase: A hemeprotein from leukocytes. Deficiency of this enzyme leads to a hereditary disorder coupled with disseminated moniliasis. It catalyzes the conversion of a donor and peroxide to an oxidized donor and water. EC 1.11.1.7.Cycloaddition Reaction: Synthetic organic reactions that use reactions between unsaturated molecules to form cyclical products.Membrane Potentials: The voltage differences across a membrane. For cellular membranes they are computed by subtracting the voltage measured outside the membrane from the voltage measured inside the membrane. They result from differences of inside versus outside concentration of potassium, sodium, chloride, and other ions across cells' or ORGANELLES membranes. For excitable cells, the resting membrane potentials range between -30 and -100 millivolts. Physical, chemical, or electrical stimuli can make a membrane potential more negative (hyperpolarization), or less negative (depolarization).Potassium Cyanide: A highly poisonous compound that is an inhibitor of many metabolic processes, but has been shown to be an especially potent inhibitor of heme enzymes and hemeproteins. It is used in many industrial processes.Protons: Stable elementary particles having the smallest known positive charge, found in the nuclei of all elements. The proton mass is less than that of a neutron. A proton is the nucleus of the light hydrogen atom, i.e., the hydrogen ion.Phosphines: Inorganic or organic compounds derived from phosphine (PH3) by the replacement of H atoms. (From Grant & Hackh's Chemical Dictionary, 5th ed)Cell Membrane Permeability: A quality of cell membranes which permits the passage of solvents and solutes into and out of cells.Ion Exchange: Reversible chemical reaction between a solid, often one of the ION EXCHANGE RESINS, and a fluid whereby ions may be exchanged from one substance to another. This technique is used in water purification, in research, and in industry.Ions: An atom or group of atoms that have a positive or negative electric charge due to a gain (negative charge) or loss (positive charge) of one or more electrons. Atoms with a positive charge are known as CATIONS; those with a negative charge are ANIONS.MethemoglobinCarbonyl Cyanide m-Chlorophenyl Hydrazone: A proton ionophore. It is commonly used as an uncoupling agent and inhibitor of photosynthesis because of its effects on mitochondrial and chloroplast membranes.Carboxylic Acids: Organic compounds containing the carboxy group (-COOH). This group of compounds includes amino acids and fatty acids. Carboxylic acids can be saturated, unsaturated, or aromatic.
  • The purpose of this document is to help health care workers and public health officials to recognize an unknown or suspected exposure to sodium azide. (cdc.gov)
  • Sodium azide is a rapidly acting, potentially lethal chemical that exists as an odorless, white crystalline solid. (cdc.gov)
  • after deployment, sodium azide is converted to nitrogen gas. (cdc.gov)
  • Sodium azide is converted rapidly into hydrazoic acid vapor upon contact with water or an acid. (cdc.gov)
  • Like sodium azide, hydrozoic acid is highly explosive. (cdc.gov)
  • Similar to cyanide, sodium azide and hydrozoic acid also interfere with cellular respiration and aerobic metabolism, preventing the cells from using oxygen. (cdc.gov)
  • The central nervous system and the cardiovascular system are most sensitive to acute sodium azide poisoning. (cdc.gov)
  • The amount and route of the exposure to sodium azide and the premorbid condition of the exposed person will contribute to the time of onset, duration, and the severity of illness. (cdc.gov)
  • Following is a list of signs and symptoms that may be encountered in a person exposed to sodium azide. (cdc.gov)
  • The actual clinical manifestations of an exposure to sodium azide may be more variable than the syndrome described in this document. (cdc.gov)
  • Sodium azide is made industrially by the reaction of nitrous oxide, N2O with sodium amide in liquid ammonia as solvent: N2O + 2 NaNH2 → NaN3 + NaOH + NH3 Many inorganic azides can be prepared directly or indirectly from sodium azide. (wikipedia.org)
  • For example, lead azide, used in detonators, may be prepared from the metathesis reaction between lead nitrate and sodium azide. (wikipedia.org)
  • The principal source of the azide moiety is sodium azide. (wikipedia.org)
  • As a pseudohalogen compound, sodium azide generally displaces an appropriate leaving group (e.g. (wikipedia.org)
  • Appropriately functionalized aliphatic compounds undergo nucleophilic substitution with sodium azide. (wikipedia.org)
  • Hydrazines may also form azides by reaction with sodium nitrite: PhNHNH2 → PhN3 Alkyl or aryl acyl chlorides react with sodium azide in aqueous solution to give acyl azides, which give isocyanates in the Curtius rearrangement. (wikipedia.org)
  • The azo-transfer compounds, trifluoromethanesulfonyl azide and imidazole-1-sulfonyl azide, are prepared from sodium azide as well. (wikipedia.org)
  • Protonation of azide salts gives toxic hydrazoic acid in the presence of strong acids: H+ + N− 3 → HN3 Azide salts may react with heavy metals or heavy metal compounds to give the corresponding azides, which are more shock sensitive than sodium azide alone. (wikipedia.org)
  • Another azide regular is tosyl azide here in reaction with norbornadiene in a nitrogen insertion reaction: About 250 tons of azide-containing compounds are produced annually, the main product being sodium azide. (wikipedia.org)
  • Sodium azide is the propellant in automobile airbags. (wikipedia.org)
  • Energy dependence of AA uptake was investigated with ouabain and sodium azide in rPCEC. (biomedsearch.com)
  • Ouabain and sodium azide significantly diminished the uptake process. (biomedsearch.com)
  • The aim is to study deviations of signals obtained by 14 N NMR spectroscopy to detect the binding interaction between sodium azide and hydrated fullerene. (mdpi.com)
  • Sodium azide is an example of an azide for which the environmental exposure limits have been reasonably well characterized. (mdpi.com)
  • The Organization for Economic Co-operation and Development (OCDE) [ 10 ] has included sodium azide in the list of 5235 High Production Volume Chemicals (HPV) with a production or import greater than 1000 tons per year [ 10 ]. (mdpi.com)
  • Environmentalists and atmospheric scientists are concerned about the safety of the use of sodium azide. (mdpi.com)
  • Despite the widespread opinion of proponents of sodium azide use in water and soil, who argue that this chemical undergoes rapid hydrolysis and degradation [ 11 , 12 ], their opponents [ 13 ] claim that this is not exactly what can be anticipated, since they have discovered water and soil samples containing residual amounts of sodium azide. (mdpi.com)
  • Sodium azide (NaN 3 ) is widely used as starting molecule in the synthesis of Sartans, a group of drugs that have been used for the treatment of hypertension since the 1990s [ 14 ]. (mdpi.com)
  • Transport of the angiotensin converting enzyme inhibitor enalapril (1-750 μM with [ 3 H]enalapril), a substrate of Oatp1, the sodium-independent organic anion transporting polypeptide 1 cloned from rat liver, was studied in rat hepatocytes isolated from all zones of the liver (homogeneous) and from enriched periportal (PP) and perivenous (PV) hepatocytes prepared by collagenase perfusion and zone-selective destruction with digitonin, respectively. (aspetjournals.org)
  • The role of individual reactive oxygen species was determined by the protective effects of superoxide dismutase, catalase, and sodium azide. (arvojournals.org)
  • The transport was inhibited by metabolic inhibitors (rotenone and sodium azide) but was insensitive to extracellular sodium and membrane potential for both substrates. (diva-portal.org)
  • The acid is usually formed by acidification of an azide salt like sodium azide . (chemeurope.com)
  • Normally solutions of sodium azide in water contain trace quantities of hydrazoic acid in equilibrium with the azide salt, but introduction of a stronger acid can convert the primary species in solution to hydrazoic acid. (chemeurope.com)
  • This cation is usually found in partnership with other more interesting anions - think, sodium bicarbonate (baking soda), sodium stearate (soap), and sodium azide (used to inflate airbags in cars). (rnz.co.nz)
  • Killing of H. capsulatum by activated macrophages in 2-h assays could be inhibited by superoxide dismutase but not by sodium azide. (microbiologyresearch.org)
  • PBS with 0.02% sodium azide and 50% glycerol pH 7.3. (ptglab.com)
  • The singlet oxygen quencher, sodium azide, was tested for its ability to reduce DNA damage, and cell viability was quantified. (arvojournals.org)
  • The extent of damage, measured as tail moment, was proportional to exposure duration and was reduced by preincubation with sodium azide. (arvojournals.org)
  • In his theory, he said what the portions of molecules were like that moved to anions or cations. (wikipedia.org)
  • Iron oxidation in response to pH ( 1 , 28 ), organic acids ( 40 ), anions ( 2 , 17 ), and cations ( 21 , 38 ) has been extensively studied. (asm.org)
  • The present study is a branch of the main work concerned with the complex formation between several metal cations and azide anion in aqueous media. (usp.br)
  • In conclusion, the effective hepatic uptake of quinolone antibiotics are via carrier-mediated active transport, which is distinct from that involved in the transport of bile acids, organic anions, organic cations or neutral steroids. (aspetjournals.org)
  • The aryl amine radical cations were detected by pulsed laser spectroscopy and the highly reactive aroyl azide radical anions were identified by the results of steady-state photolysis. (illinois.edu)
  • Transport of both substrates was inhibited by type II cations (quinidine, verapamil, and amantadine), but not by classic organic cation transporter (OCT) substrates and/or inhibitors (tetraethylammonium, 1-methyl-4-phenylpyridinium, and corticosterone), substrates of OCTN1 (ergothioneine) and OCTN2 (L-carnitine), or organic anions. (diva-portal.org)
  • Because of deir opposite ewectric charges, cations and anions attract each oder and readiwy form ionic compounds . (appspot.com)
  • Basic values for the volume increments are calculated for pseudohalide anions such as N₃⁻, CN⁻, OCN⁻, SCN⁻ and C(CN)₃⁻ using Biltz's methods and Biltz volumes for monoatomic cations. (usda.gov)
  • Cobalt dinitrate consists of cobalt cation and nitrate anions which can all be considered as "inert" in the context of explosivity. (europa.eu)
  • and (b) a crosslinking catalyst which is selected from a compound having the formula Z + A − and its hydrate, where Z is a cation selected from triarylsubstituted sulfonium, trialkylsubstituted sulfonium and a sulfonium which is substituted with a mixture of aryl and alkyl groups, and A is an anion containing a group selected from monocarboxylate and dicarboxylate. (google.com)
  • 13. The composition of claim 1 where the crosslinking catalyst which is selected from a compound having the formula Z + A − and its hydrate, where Z is a cation selected from triphenylsulfonium, (4-t-butylphenyl)diphenylsulfonium, and A is an anion containing a group selected from monocarboxylate and dicarboxylate. (google.com)
  • GPFX inhibited the uptake of taurocholic acid, pravastatin (organic anion), cimetidine (organic cation) and ouabain (neutral steroid). (aspetjournals.org)
  • A cation is a positivewy charged ion, wif fewer ewectrons dan protons, whiwe an anion is negativewy charged, wif more ewectrons dan protons. (appspot.com)
  • In correspondence wif Faraday, Wheweww awso coined de words anode and cadode , as weww as anion and cation as ions dat are attracted to de respective ewectrodes. (appspot.com)
  • Removaw of de ewectron gives a cation (weft), whereas addition of an ewectron gives an anion (right). (appspot.com)
  • The hydrogen anion, wif its woosewy hewd two-ewectron cwoud, has a warger radius dan de neutraw atom, which in turn is much warger dan de bare proton of de cation . (appspot.com)
  • Cation" and "Anion" redirect here. (appspot.com)
  • A pulse radiolysis study was carried out to investigate the radical anion and radical cation of sparfloxacin (SPAX). (sinap.ac.cn)
  • The transient absorption spectra of SPAX radical anion and SPAX radical cation were obtained. (sinap.ac.cn)
  • b) adding globin to said nucleic acid to neutralize said polymerase inhibitor in the presence of a cofactor selected from the group consisting of bicarbonate ion, azide ion, thiocyanate ion, cyanate ion, oxalate ion, malonate ion, glycinate ion, thioglycolate ion and salts thereof. (google.ca)
  • Iron oxidation was more sensitive than sulfur oxidation to inhibition by chloride, phosphate, and nitrate at low concentrations (below 0.1 M) and also to inhibition by azide and cyanide. (asm.org)
  • Growth experiments with ferrous iron or sulfur as an oxidizable substrate confirmed the higher sensitivity of iron oxidation to inhibition by phosphate, chloride, azide, and cyanide. (asm.org)
  • Enzymes inhibited by azide respond differently upon addition of fluoride or chloride ions to the sample solution inhibited by azide. (springer.com)
  • Fluoride ions compete with azide for binding at one of the T2/T3 Cu ions, whereas competition from chloride ions is much less evident. (springer.com)
  • Upon binding an anion such as a chloride, the shorter oligoindoles la and b lead to negligible change in the emission spectra, where-as the longer ones 1c and d result in dramatic changes, that is, large hypochromic and bathochromic shifts (Δλ = 65 and 70 nm) of the emission band, confirming the helical folding. (elsevier.com)
  • On the cytoplasmic side, mutations do not change anion binding properties of the unphotolyzed protein, but slow down anion release thereby reducing the chloride transport activity and the photocycling rate. (embopress.org)
  • More specifically, the present invention relates to the quinoline based ionic liquids having fluoride counter anion and their applications in click chemistry, Knoevenagel condensation to 1,2,5,6-tetrahydronicotinonitrile (12), and pyrazol (15) formation. (patents.com)
  • The present invention relates to the preparation of quinoline based ionic liquids having fluoride counter anion (QuFs) to use as catalysts in organic reaction which include click chemistry, Knoevenagel condensation and pyrazole formation. (patents.com)
  • The human multidrug resistance protein MRP1 and its homolog, MRP2, are both suggested as being involved in cancer drug resistance and the transport of organic anions. (aspetjournals.org)
  • ATP-dependent NEM-GS transport by MRP1 and MRP2 was variably modulated by organic anions. (aspetjournals.org)
  • Our data suggest that MRP2 may be responsible for the active secretion of pharmacologically relevant organic anions, such as diuretics and antibiotics, and indicate different modulation possibilities for MRP1 or MRP2 in drug-resistant tumor cells. (aspetjournals.org)
  • It is concluded that the nitrate-reducing azide-sensitive site of nitrate reductase is located on the outer aspect of the cytoplasmic membrane. (biochemj.org)
  • The oxidation of either ferrous iron or sulfur by Thiobacillus ferrooxidans was selectively inhibited or controlled by various anions, inhibitors, and osmotic pressure. (asm.org)
  • We propose to show that the iron and sulfur oxidation activities of T. ferrooxidans can be differentially controlled through the use of specific anions and inhibitors. (asm.org)
  • Carbonic anhydrase inhibitors: inhibition of the membrane-bound human isozyme IV with anions. (nih.gov)
  • The membrane-associated human isozyme of carbonic anhydrase, hCA IV, has been investigated for its interaction with anion inhibitors, for the CO(2) hydration reaction catalyzed by this enzyme. (nih.gov)
  • Electron photodetachment spectroscopy of polyene anions. (nist.gov)
  • A series of oligoindole foldamers 1a-d that are highly fluorescent were prepared by using a biindole derivative as the repeating unit, and their folding and anion-binding properties were revealed by 1 H NMR and fluorescence spectroscopy. (elsevier.com)
  • Changes of conserved arginine and threonine residues in the transmembrane regions could be classified in two categories: in the extracellular half of the molecule, mutations influence anion uptake and binding. (embopress.org)
  • In the photochemical cycles of the mutants T111V and Q105E, a red‐shifted absorbing intermediate is enriched indicating retarded anion uptake. (embopress.org)
  • Thus, in the symmetrically arranged pairs R108/T111 and T203/R200, threonine and arginine play different roles, reflecting high affinity anion uptake by the former and effective anion release catalyzed by the latter residues. (embopress.org)
  • An iron and a copper atoms of the dioxygen reduction center were bridged by an peroxide anion at the oxidized state of the enzyme. (go.jp)
  • An infrared spectroelectrochemical study of Trametes hirsuta laccase and Magnaporthe oryzae bilirubin oxidase has been performed using azide, an inhibitor of multicopper oxidases, as an active infrared probe incorporated into the T2/T3 copper cluster of the enzymes. (springer.com)
  • Similar to cyanide (CN-), carbon monoxide (CO), and azide (NN-) the bisulfide anion (HS-) attaches to the copper of cytochrome a3 as a ligand. (mysite.com)
  • The interaction of halide anions, which also inhibit multicopper oxidases, with the active site of the enzymes was studied by measuring the changes in the azide FTIR bands. (springer.com)
  • Question 8.4 (8 marks) ptically pure (S)-2-odobutane is reacted with - (the iodide anion) in a nucleophilic substitution reaction a.) raw a mechanism for this reaction using arrows to show electron movement and accurately draw the product of the forward reaction. (docplayer.net)
  • Pseudohalides are the univalent anions (or functional groups) which form hydracids with hydrogen and form insoluble salts with Ag(Silver) such as cyanides, cyanates, isocyanates, rhodanides (i.e. thiocyanates and isothiocyanates), selenocyanogens, tellurorhodanides and azides. (wikipedia.org)
  • the azido functions carried by glycidyl azide which are successfully incorporated into the backbones of polyethers and polycarbonates based on cyclohexene oxide and propylene oxide subsequently served to introduce other functions by click chemistry. (nature.com)
  • Inhibition studies were performed in the presence of D-glucose a substrate for GLUT and also para amino hippuric acid (PAHA) a substrate for organic anion transporter. (biomedsearch.com)
  • Inhibition of MPO by azide increased the magnitude, but not the duration, of .OH formation. (biochemj.org)
  • Indium (III) was selected, in analogy to iron (III), because forms complexes with azide in aqueous media. (usp.br)
  • The salt [Rh(III)(phpy)₂(dtoxa)]Cl with phpy = 2-(2-pyridyl)phenyl anion and dtoxa = dithiooxamide has been characterized by its crystal structure and its electronic spectra. (usda.gov)
  • This gene encodes a voltage-dependent anion channel protein that is a major component of the outer mitochondrial membrane. (thermofisher.com)
  • T his substance is void of any chemical structures commonly associated with explosive properties, such as metal peroxides, peroxo-acid-anions, azides, and halogen oxides. (europa.eu)
  • It is soluble in water, and the solution dissolves many metals (e.g. zinc , iron ) with liberation of hydrogen and formation of salts (azides, formerly also called azoimides or hydrazoates). (chemeurope.com)
  • Here we report that glycidyl azide can be directly homopolymerized through anionic ring-opening polymerization to access poly(glycidyl azide) using onium salts as initiator and triethyl borane as activator. (nature.com)