(n.) One of a series of complex double cyanides of ferrous iron and some other base.
Example Sentences:
(1) Ferric ion and ferrocyanide are bound to nodes as colloidal precipitates, and may migrate away from their sites of formation.
(2) Glutaraldehyde-fixed testes were stained "en bloc" with the Ur-Pb-Cu technique of Thiéry and Rambourg ('76) or post-fixed and stained with the osmium tetroxide-potassium ferrocyanide method of Karnovsky ('71).
(3) The two-step method uses cationic cacodylate iron colloid which is substituted with Tween 20 at an OD460 nm = 0.5, followed by Perls' reaction with acid potassium ferrocyanide.
(4) Postfixation with unbuffered ferrocyanide-reduced osmiumtetroxide contributes to a better localization of microperoxisomes in both celltypes.
(5) It was recently reported that sequential block staining of tissue with ferrocyanide-reduced osmium tetroxide and lead aspartate produced excellent contrast for EM autoradiography, with sections relatively free of lead precipitate.
(6) In in vitro experiments ferrocyanide did not penetrate into erythrocytes, nor did it adhere to the red cell membrane.
(7) Ferrocyanide solutions absorb light energy in a photochemical reaction that causes cyanide radicals to be lost from the iron complex.
(8) A system consisting of an interlacunar network and thick fibrils was demonstrated in the matrix of human fetal and neonatal hyaline cartilage, using an osmium-ferrocyanide mixture as a second fixative.
(9) In particular the kinetics of the reaction of cytochrome cr and cytochrome cn (native) with ascorbate, ferrocyanide-ferricyanide, O2 and cytochrome c oxidase were investigated in considerable detail.
(10) In this pH range ferricyanide-oxidized cytochrome b-559 exists in a form not reducible by ferrocyanide.
(11) This rate also decreased at higher pH, with a pK of 7.4, indicating that ferrocyanide also was most reactive with a protonated form of the reaction center.
(12) Neutrophil iron-binding reactivity (NFeBR) visualized using the iron nitrilotriacetate-acid ferrocyanide technique was rated 0 to 5+ in 100 segmented cells; the ratings were totaled to yield a score (NFeBRS).
(13) A final precipitate of copper ferrocyanide is observed in the immediate vicinity of the tubules of the smooth endoplasmic reticulum, or in contact with their external faces.
(14) In intact dogs continuously infused with indicator, ferrocyanide also reached its ultimate distribution volume in 2 hrs and remained constant thereafter for up to 7 hrs after the start of the infusion.
(15) Accordingly, stable electron transfer dependent membrane potentials require cytochrome c, oxygen, and ferrocyanide.
(16) To evaluate the ultrastructural distribution of transferrin on the surface of L1210 ascites tumor cells, we used ferrocyanide to stain ferric iron (Prussian blue reaction) in transferrin, as well as in ferritin conjugated to antibody that was immunologically attached to the transferrin.
(17) The pattern of esterase activity in the thyroid of the guinea-pig is constant, irrespective of whether ferri-ferrocyanide (FFC) or certain copper compounds are used as oxidizing agents in the incubation medium.
(18) Ferric ion-ferrocyanide staining and safranin-0-counterstaining of neocortical tissue from cats with GM1 gangliosidosis have established that pyramidal neuron meganeurites occur proximal to axonal initial segments and that they are distinct from axonal spheroids.
(19) The rate of reaction of ferro- and ferricytochrome c (C(II) and C(III) with ferri- and ferrocyanide and of C(III) with 02- and CO2- was determined in H2O and in 2H2O in the temperature range 5-35 degrees C. No isotope effect was evident in any of the reductions of C(III); the apparent energy of activation was identical in H2O and 2H2O.
(20) The binuclear Cu2+ complex was found to accept only one electron from ferrocyanide.
Ferrous
Definition:
(a.) Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower valence; as, ferrous sulphate.
Example Sentences:
(1) The free radical scavengers mannitol, thiourea, benzoate, and 4-methylmercapto-2-oxobutyrate protected either native cells exposed to H2O2 or pretreated hepatocytes exposed to H2O2 and given ferric or ferrous iron.
(2) The pH dependence of this spectral change gave a sigmoidal curve fitted well to a theoretical curve of a cooperative release of two protons with a pK value of 7.5, indicating the existence of the acidic and alkaline forms of the ferrous CO enzyme.
(3) Iron presented as inorganic ferric or ferrous salts may also be absorbed, though the more soluble ferrous salts are adsorbed much more rapidly.
(4) The oxygen-free radical scavengers thiourea, mannitol and catalase prevented toxicity mediated by ferrous ammoniumsulphate but not by ferrous ascorbate (molar ratio of 1:20).
(5) One was identified as viridomycin A, the ferrous chelate of 4-hydroxy-3-nitrosobenzaldehyde; the second (actinoviridin A) was the corresponding carboxylic acid chelate and the third (viridomycin E) was a hybrid chelate containing both the aldehyde and acid ligands.
(6) The ferrous iron chelator, bipyridyl, enhanced the production of chemiluminescence catalyzed by FeSO4 and ferritin but had little effect on the K3Fe(CN)6-catalyzed reaction.
(7) Under aerobic conditions, adriamycin-Fe3+ caused a reduction of cytochrome c and ferrous iron formed spontaneously.
(8) EPR studies of intact cells grown photoheterotrophically reveal that in situ cytochrome c' exists largely in the ferrous state.
(9) Ferric ammonium citrate, ferrous sulfate and ferrous gluconate were all found effective in preventing rat anemia when added to their drinking water.
(10) Of several heavy metal ions, such as Fe3+, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+, tested for supplementation of the alkaline growth deficiency, only iron, either added in the ferrous or ferric form, was able to restore cellular growth.
(11) Prolonged continuous cultivation on tetrathionate or thiosulfate did not affect the ability of the organism to grow subsequently in ferrous iron medium.
(12) Fatale haemoptysis occurred as a result of circumferential caustic erosion to the right intermediate bronchus caused by a tablet of ferrous sulphate which remained in contact for 4 days.
(13) Ferrous ions stimulate NAD(P)H oxidation, which is again inhibited by SOD and catalase.
(14) Bio-availability and therapeutic efficacy of two oral ferrous preparations in the form of effervescent tablets (A and A*) were compared.
(15) The reaction of ferrous bleomycin with dioxygen is reexamined to clarify whether radical species derived from molecular oxygen are generated.
(16) The hydroxylase was a monomer with a Mr of 35,000-38,000. alpha-Ketoglutarate, ferrous iron, and molecular oxygen were required for the enzyme activity.
(17) The spontaneous activity of 24 cells was reduced by ferrous ions.
(18) It was classified as a metallo-protease by virtue of its inactivation by metal-ion chelators and reactivation by ferrous ions.
(19) Regulation by iron occurs at the transcriptional level and is mediated by a ferrous iron binding protein designated Fur (ferric uptake regulation).
(20) The anticonvulsant effects of D-alpha-tocopherol (vitamin E) were studied in 4 animal seizure models: the Metrazol threshold model (MET), the maximal electroshock model (MES), the kindling model (well-established seizures), and the ferrous chloride model.