Commonly used fluorescent dyes for cell nuclei PEGreviews 07/22/2022 Acridine Orange (AO), Ethidium Bromide (EB) and Propidium Iodide (PI), DAPI, Hoechst dye, EthD III, 7-AAD, RedDot1, 2, etc. Dyes that penetrate the membrane:AO: It Read More »