Prompt detection of endogenous hypochlorite (ClO-) in murine macrophages and zebrafish embryos facilitated by a distinctive chemodosimetric mode

An innovative fluorescein appended naphthalene diimide based probe (FANDI) has been prepared and characterized to selectively recognize hypochlorite or ClO(-)ions in the presence of other reactive oxygen species (ROS) and biorelevant ions, using a unique chemodosimetric method. Hypochlorite induced oxidation can efficiently alter the initial photophysical properties ofFANDIand shows an easily detectable turn on green fluorescence. The chemodosimeterFANDIcan efficiently detect exogenous as well as endogenous ClO(-)ions in RAW 264.7 cells (macrophages) and zebrafish embryos (Danio rerio) which further ensures the high potential, easy cell permeability and photostability ofFANDIand makes it worth exploring in the future.