phenol red


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Related to phenol red: phenolphthalein

phenol red

n.
A red, water-soluble dye, C19H14O5S, used as an acid-base indicator and in medicine to test kidney function.
References in periodicals archive ?
phenol red, sterile, liquid, intended for use in cultures
Media components like phenol red and FBS can also be subject to this.
Phenol red is a common pH indicator that is present in most commercially available media.
IMDM containing phenol red (Corning) was supplemented with 10% FBS (Gemini Bio-Products, West Sacramento, California), 100 units/mL penicillin, 100 [micro]g/mL streptomycin, 50 [micro]g/mL gentamicin, 55 [micro]M 2-ME (Life Technologies, Grand Island, NY), and 2 millimolar L-glutamine (Corning) for standard condition complete IMDM.
Tear production quantification using the phenol red thread test (PRTT), fluorescein staining, and intraocular pressure (IOP) evaluation were performed.
LAMP positive amplicons have been confirmed by adding a number of fluorescent dsDNA intercalating dye including ethidium bromide and SYBR[R] Premix Ex Taq[TM] II after the reaction is completed or metal indicators such as magnesium sulphate (MgSO4), calcium chloride (Ca[Cl.sub.2]), SYBR Green I, propidium iodide, GeneFinder[TM], calcein, hydroxynaphthol blue (HNB), phenol red and GelRed[TM] prior to the reaction, allowing observation with the naked eye (37-40).
Thirty minutes later, a liquid meal containing phenol red (50 mg) suspended in CMC (100 mL) was also administered orally in a volume of 0.3 mL.
U87 and U251 (ATCC, VA, USA) cells derived from human glioblastomas were cultured in Dulbecco's modified eagle medium (DMEM) with phenol red, supplemented with fetal bovine serum (FBS) (10%), pyruvate (1 mM), glutamine (2 mM), and nonessential amino acids (0.1 nM) (Biowest, Nuaille, FRA); the culture was maintained at 37[degrees]C, under 95% humidity/5% C[O.sub.2] atmosphere.
In an effort to understand the extent of impurities in these dyes and the potential impact on the expanded uncertainty of spectrophotometric pH measurements, we have examined seven commercially available sulfonephthalein pH indicators using liquid chromatography-mass spectrometry (LC-MS): bromocresol green (BCG), bromocresol purple (BCP), bromothymol blue (BTB), cresol red (CR), meta-cresol purple (MCP), phenol red (PR), and thymol blue (TB).
Other than that, from their study, phenol red contained in media, which is used as pH indicator, is estrogenic.
Phenol red thread (PRT): A minimally invasive measure of tear quantity, the phenol red thread has been used as an alternative to Schirmer.
The MDA assay indicates that sucrose and phenol red uptake into RBCs has a higher correlation with incubation time under peroxidative stress.