Loading...
*  Indicator bacteria
These chromogenic compounds are modified to change color or fluorescence by the addition of either enzymes or specific ... One technique for detecting indicator organisms is the use of chromogenic compounds, which are added to conventional or newly ...
*  List of MeSH codes (D16)
... chromogenic compounds MeSH D27.720.233.348 --- fluorescent dyes MeSH D27.720.233.674 --- food coloring agents MeSH D27.720. ... chromogenic compounds MeSH D27.720.470.410.210 --- cross-linking reagents MeSH D27.720.470.410.360 --- intercalating agents ...
*  Madeleine M. Joullié
Joullié's lab has developed compounds with enhanced chromogenic and fluorogenic properties, useful in fingerprinting and ... Early in her career, her Ph.D. advisor, Allan R. Day, interested her in heterocyclic compounds, and she did early work with ... Joullié's specialized compounds made Folkman's original treatments 100 to 1000 times more potent. Beta-cyclodextrin sulfate is ... Joullié, with students Olga Petrovskaia and Diane Hauze, developed and patented a class of compounds called indanediones. Like ...
*  Spectrophotometry
... biochemicals can often be converted to colored compounds suitable for chromogenic color-forming reactions to yield compounds ... Scientists use this instrument to measure the amount of compounds in a sample. If the compound is more concentrated more light ... The spectrophotometer is used to measure colored compounds in the visible region of light (between 350 nm and 800 nm), thus it ... Because a spectrophotometer measures the wavelength of a compound through its color, a dye binding substance can be added so ...
*  3-Amino-9-ethylcarbazole
... (AEC) is a chemical compound commonly used as a chromogenic substrate in immunohistochemistry, ... After the chromogenic oxidation reaction catalyzed by HRP, a red water-insoluble precipitate is formed in situ, visualizing the ...
*  Chromogenic
... the main hazardous waste product of chromogenic processing consists of silver compounds dissolved in the used fixer. This waste ... The most common chromogenic processes are C-41 for color (and chromogenic black-and-white) negative film, RA-4 for color ... Most films and papers used for color photography today are chromogenic. Chromogenic film or paper contains one or many layers ... Chromogenic refers to photographic processes that work by forming a conventional silver image and then replacing it with a dye ...
*  Chromogenic print
The remaining silver and silver compounds are then bleached out, leaving a color image composed of dyes in three layers. The ... A digital chromogenic print, sometimes known as a digital Type-C print, a Lambda print, or a LightJet print, is a chromogenic ... Chromogenic prints made from negatives became obsolete with the release of chromogenic digital prints, which have become the ... The print's name is derived from the chromogenic reaction between the dye coupler and the oxidized color developer. Chromogenic ...
*  Julolidine
This compound and its derivatives have found recent interest as photoconductive materials, chemiluminescence substances, ... chromogenic substrates in analytical redox reactions, dye intermediates, potential antidepressants and tranquilizers, nonlinear ... Julolidine is a heterocyclic aromatic organic compound. It has the formula C12H15N. The first synthesis of julolidine was first ...
*  Fecal coliform
Since the colour of the detection compound is of no consequence, this allows detection in deeply coloured matrices. The 1989 ... as opposed to the more usual chromogenic format, allowing faecal indicator bacteria such as E. coli and E. faecalis to be ... More recently, the chemistry behind enzymatic detection compounds has been updated so that the indicating component is redox ...
*  Cellulase
These compounds do not react in reducing sugar assays but their hydrolysis products do. This makes borohydride reduced cello- ... Soluble chromogenic substrates: A cellulase sample is incubated with a water-soluble substrate such as azo-CM-cellulose, the ... McCleary, BV (Nov 1980). "New chromogenic substrates for the assay of alpha-amylase and (1 leads to 4)-beta-D-glucanase". ... These substrates can be subdivided into two classes- Insoluble chromogenic substrates: An insoluble cellulase substrate such as ...
*  Yttrium hydride
... is a compound of hydrogen and yttrium. It is considered to be a part of the class of rare-earth metal hydrides ... This report spurred a wave of research on metal hydride-based chromogenic materials and smart windows; gasochromic windows ... It exists in several forms, the most common being a metallic compound with formula YH2. YH2 has a face centred cubic structure ... and is a metallic compound. Under great pressure, extra hydrogen can combine to yield an insulator with a hexagonal structure, ...
*  Jerome Horwitz
Also during 1964, he published the first production and demonstration of X-gal as a chromogenic substrate. After synthesizing ... Horwitz synthesized a compound that was to become known as zidovudine (AZT) - an antiviral drug used to treat HIV patients; ...
*  Smart material
Magnetocaloric materials are compounds that undergo a reversible change in temperature upon exposure to a changing magnetic ... Chromogenic systems change colour in response to electrical, optical or thermal changes. These include electrochromic materials ...
*  Nitrocefin
... is a chromogenic cephalosporin substrate routinely used to detect the presence of beta-lactamase enzymes produced by ... Once hydrolyzed, the degraded nitrocefin compound rapidly changes color from yellow to red. Although nitrocefin is considered a ... "Novel Method for Detection of B-Lactamases by Using a Chromogenic Cephalosporin Substrate." Antimicrobial Agents and ... "Novel Method for Detection of B-Lactamases by Using a Chromogenic Cephalosporin Substrate." Antimicrobial Agents and ...
*  Tooth whitening
Metallic compounds. Exposure to such metallic compounds may be in the form of medication or other environmental exposure. ... plaque may become stained by chromogenic bacteria such as Actinomyces species. Calculus: neglected plaque will eventually ...
*  Tooth discoloration
Metallic compounds. Exposure to such metallic compounds may be in the form of medication or other environmental exposure. ... Dental plaque: Although usually virtually invisible on the tooth surface, plaque may become stained by chromogenic bacteria ...
*  Nitro blue tetrazolium chloride
Nitro blue tetrazolium is a chemical compound composed of two tetrazole moieties. It is used in immunology for sensitive ... "Fluorescent in situ hybridization employing the conventional NBT/BCIP chromogenic stain". BioTechniques. 42 (6): 756-9. doi: ...
*  Claviceps purpurea
The compound of alkaloids is also used to differentiate the strains. Agrostis canina, Alopecurus myosuroides (G2), Alopecurus ... Sunlight has a chromogenic effect on the mycelium with intense coloration. The disease cycle of the ergot fungus was first ...
*  Horseradish peroxidase
HRP catalyzes the conversion of chromogenic substrates (e.g., TMB, DAB, ABTS) into colored products, and produces light when ... This enzyme is suitable for the removal of hydroxylated aromatic compounds (HACs) that are considered to be primary pollutants ... Detection by chemiluminescent substrates has several advantages over chromogenic substrates. The sensitivity is 10- to 100-fold ...
*  Taraxacum officinale
Rudenskaya et al (1998) found that taraxalisin hydrolyzes a chromogenic peptide substrate Glp-Ala-Ala-Leu-pNA optimally at pH ... It contains a wide number of pharmacologically active compounds. Dandelion contains flavonoids including luteolin, apigenin, ... isoquercitrin (a quercetin-like compound), caffeic acid, and chlorogenic acid. Dandelion also contains terpenoids, triterpenes ...
*  3,3',5,5'-Tetramethylbenzidine
On that evidence, it has been used as a replacement for carcinogenic compounds such as benzidine and o-phenylenediamine. Sigma ... 3,3',5,5'-Tetramethylbenzidine or TMB is a chromogenic substrate used in staining procedures in immunohistochemistry as well as ...
*  Depyrogenation
The FDA has approved four variations of the LAL test: gel-clot, turbidimetric, colorimetric, and chromogenic assay. The ... Typical examples of endotoxin binding ligands include histamine, nitrogen-containing heterocyclic compounds, and polymyxin B. ...
*  Schiff test
NMR data that allowed visualization of intermediates does not support this mechanism or the sulfonamides as the chromogenic ... Schiff reagent with aldehydes is complex with several research groups reporting multiple reaction products with model compounds ...
*  Ehrlich's reagent
A very common Ehrlich test is a simple spot test to identify possible psychoactive compounds such as tryptamines (e.g. DMT) and ... Ehmann, A. (1977). "The van URK-Salkowski reagent - a sensitive and specific chromogenic reagent for silica gel thin-layer ... reagent works by binding to the C2 position of two indole moieties to form a resonance stabilised carbenium ion compound. Pill ...
*  Para-Dimethylaminobenzaldehyde
... is an organic compound containing amine and aldehyde moieties which is used in Ehrlich's reagent ... a sensitive and specific chromogenic reagent for silica gel thin-layer chromatographic detection and identification of indole ...