A mitochondria-targeted colorimetric and ratiometric fluorescent probe for biological SO2 derivatives in living cells†
Abstract
A ratiometric fluorescent probe for SO2 derivatives based on the conjugate of carbazole and indolium was presented, which could selectively respond to HSO3− over other thiol compounds. More importantly, CZ-Id is a novel mitochondria-targeted ratiometric fluorescent probe to image exogenous SO2 derivatives.