(n.) Any one of a large series of aniline dyes, colored blue or violet, and represented by aniline violet.
(n.) A dark green amorphous dyestuff, produced by the oxidation of aniline in the presence of copper or vanadium salts; -- called also aniline black.
Example Sentences:
(1) Candida albicans utilized 14C (ring) labelled dehydropolymer of coniferyl alcohol, 14C-teakwood lignin and indulin and released p-hydroxybenzoic acid, vanillic acid, 3,4-dihydroxybenzoic acid and catechol as by products from lignin.
(2) Eight experiments were conducted to determine effects of a phenolic polymer (Kraft wood lignin, Indulin), phenolic glycosides (cane molasses and wood molasses), and phenolic monomers (vanillin, vanillic acid, ferulic acid, and p-coumaric acid) on liver cytochromes P-450, cytochrome b5, and NADPH cytochrome c reductase in chicks and rats.
(3) Addition of any one of these fibers, or indulin or glucuronic acid to the diet increased the tissue retention of one or both of the metals.
(4) Candida albicans produced catechol 1,2-dioxygenase, protocatechuate 3,4-dioxygenase, intra- and extracellular polyphenol oxidase and peroxidase during indulin degradation.
Nigrosine
Definition:
(n.) A dark blue dyestuff, of the induline group; -- called also azodiphenyl blue.
Example Sentences:
(1) (1) Various estimations of motility (subjective appreciation, count on video record, Doppler laser apparatus and optic-microcomputer analyser) or percentage of live spermatozoa (eosin-nigrosin staining) showed a higher repeatability for measurements of a same sample than for straws of a same ejaculate: the values were high (respectively greater than 0.78 and greater than 0.69) except for the optical analyser and staining.
(2) Then, the cells were stained with nigrosine and Sudan IV to demonstrate dead or damaged cells and fatty granules, respectively.
(3) Triple-barrelled microelectrodes filled with solutions each containing one of three different dyes (Fast Green FCF, Pontamine Sky Blue and Nigrosine) were used for recording and stimulation.
(4) Concerning the small methodical range of error and the little expenditure of work microzone electrophoresis of the non-concentrated CSF after staining with nigrosine and after evaluation on non-transparent acetate film should have priority to microzone electrophoresis of concentrated CSF.
(5) By a quantitative approach the influence of various parameters (pO2,glucose, enzymes, temperature, buffers, [Ca++]0, mechanical isolation) was evaluated on number and state of viability of the isolated cells using the nigrosine exclusion test and considering the neurons' morphological features.
(6) Nigrosin base in an acid alcohol solution and Gomori's aldehyde fuchsin gave excellent staining of the elastic fibers in the arteries and skin regardless of age.
(7) While nonoxynol-9 has a dramatic effect on the bioelectric activity of the vaginal epithelium, both the electrical and dye data show that the pro-oestrus vaginal epithelium presents a significant diffusion barrier to the passage of nonoxynol-9 and nigrosin.
(8) Solutions of acridine orange, alcian blue 8GX, alizarin red S, azure A, azure B, Congo red, cresyl violet acetate, crystal violet, eosin B, erythrosin B, ethidium bromide, Janus green B, methylene blue, neutral red, nigrosin, orcein, propidium iodide, rose Bengal, safranine O, toluidine blue O, and trypan blue could be completely decontaminated to the limit of detection and solutions of eosin Y and Giemsa stain were decontaminated to very low levels (less than 0.02 ppm) using Amberlite XAD-16.
(9) The accuracy of fluorometry for estimating percentages of dead chicken spermatozoa was investigated by comparing this technique with the eosin-nigrosin differential staining procedure and with glutamic oxaloacetic transaminase (GOT) concentration in seminal plasma.
(10) At this time (22 h) the Schwann cells associated with some demyelinating internodes appeared vital upon ultrastructural examination: the cells also excluded the nuclear dye nigrosin.
(11) Viability by fluorescence microscopy was compared to conventional eosin nigrosin staining.
(12) Anoxia was induced by incubation of cultures in normal medium for 45 min at 25 degrees C in an atmosphere of nitrogen (N2), and cell death was measured by nigrosine dye uptake.
(13) No significant difference in cell loss, as determined by means of staining with nigrosin vital dye, was found at any cell concentration between the vitrectomized and control specimens.
(14) Two commonly used live-dead stains (eosin-nigrosin (EN) and eosin-opal blue (EOB)) were compared with the estimated active spermatozoa in semen samples from patients attending an infertility service.
(15) Results of microzone electrophoresis of non-concentrated CSF after staining with nigrosine and after evaluation on non-transparent acetate film are compared with those of isotope cisternography (111In-DTPA).
(16) The dye Nigrosin (0.5%), when instilled alone, did not stain untreated vaginas of anaesthetized rats at any stage of the oestrous cycle, but in the presence of 2% nonoxynol-9 heavily stained those in metoestrus and dioestrus.
(17) Sperm vitality assessed with any of these two fluorescent dyes correlated well with that determined by eosin-nigrosin counterstain.
(18) Supra-vital staining with eosin-nigrosin indicated death of the treated sperm.
(19) Neutral hydroalcoholic stains with spirit soluble nigrosin (C.I.
(20) Cytotoxicity was assessed according to the uptake of neutral red and dye exclusion with nigrosin.