A diazo dye used as a biological stain due to its absorption by macrophages of the reticuloendothelial system.
- Differential cell counts and trypan blue staining revealed a purity and viability of isolated macrophages of greater than 95% in all groups.
- BAL cells were stained with trypan blue, and viable cells were counted using a hemocytometer.
- At the end of ultrasound exposure, cells were stained with trypan blue.
Early 20th century: trypan from trypanosome.
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