[Histonet] stain living cells - what dye doesn't kill the cells?

[Moran Elishmereni]

Dear Histonetters,

Does anyone know of a dye/stain (fluorescent or non-fluorescent) that does
not kill cells? I want to do some live-imaging of live primary mast cells,
but be able to distinguish them from other cells in a certain mix. So I need
to stain them- but not affect there viability/function.
I know that this isnt exactly the forum for this question, but I'm hoping to
get some suggestions anyway.
Many thanks,
Moran

-- 
Moran Elishmereni

Department of Pharmacology and Experimental Therapeutics
School of Pharmacy, Faculty of Medicine
The Hebrew University of Jerusalem
POB 12065
Jerusalem 91120, ISRAEL
Tel: 972-2-675-8746
Fax: 972-2-675-8144
Email: moran.elish <@t> gmail.com