neutral red


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neu·tral red

(nū'trăl red), [C.I. 50040]
Used as an indicator (red at pH 6.8, yellow at 8), as a vital dye to stain granules and vacuoles in living cells, in testing the secretion of acid by the stomach (given with a test meal), and in general histologic staining.
Synonym(s): toluylene red
References in periodicals archive ?
At 10 g/ml concentration cells were totally round and they also didn't uptake neutral red and they were appearing transparent in color instead of red (Fig.
The Neutral red retention (NRR) assay used in this study was modified from the methods used by Lowe et al.
After exposure time, the extracts from particulate matter were decanted and a neutral red dye solution of 100 [micro]g/mL was added to all wells, with the exception of the blanks.
In their stable form (no stress response), lysosomes will accumulate and retain the neutral red dye for an extended period of time.
Tryptone, Neutral red C15H17CIN4, yeast extract (Oxoid), Sodium hydrogen phosphate Na2HPO4, potassium phosphate KH2PO4, sodium chloride NaCl, and glucose C6H12O6 (Merck) H2SO4 (sigma) were used as received.
Neutral red was also identified by Salih and Logan (1990) as the most promising of 30 dyes listed as markers for Microtermes lepidus Sjostedt.
The method is based on the assessment of cell viability in vitro after exposure to the AE, measuring the lysosome's uptake of neutral red dye.
Add 100 [micro]l Neutral Red medium Incubate (37[degrees] [+ or -] 1[degrees]C/5.
Light microscopy and neutral red staining confirmed the presence of plaque formation with a central clearing surrounded by live (red) cells (Fig.
KEY WORDS: abalone, fishing stress, morbidity, hemolymph, Haliotis iris, sodiurmpotassium ratio, heart rate, neutral red retention assay
Briefly after measurement of NO production, the supernatant was removed from each well and replaced with neutral red working solution, following incubation for 30 min.