By repeating this process two or three times, the fluorescein may be obtained in a very pure condition.
"Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 5" by Various
Are you familiar with fluorescein?
"Astounding Stories of Super-Science January 1930" by Victor Rousseau
Fluorescein may stain damaged cells.
We did a study showing that lissamine green staining typically will stain one grade lower compared to fluorescein staining on the conjunctiva (Hom, ARVO 2008 #5298/D740).
With fluorescein stain , we can use a yellow filter to enhance our viewing.
Feenstra and Tseng (1992) showed that fluorescein doesn't stain healthy cells, has no intrinsic toxicity and shows increased staining in dead cells.
Noncovalent functionalization of carbon nanotubes by fluorescein-polyethylene glycol: Supramolecular conjugates with pH-dependent absorbance and fluorescence. J.
Carbon Nanotubes in Biology and Medicine: in vitro and in vivo Detection, Imaging and Drug Delivery