A novel two-photon fluorescent probe for hydrogen sulfide in living cells using an acedan–NBD amine dyad based on FRET process with high selectivity and sensitivity

The first NBD amine based two-photon fluorescence probe L using a FRET strategy was developed for the H 2 S detecting in vitro and in vivo . The probe L not only afforded high selectivity and sensitivity for H 2 S detecting, but also dispalyed a linear response to H 2 S with a low detection limit 24 nM.