Abstract
Glyoxal (GL) is a physiological reactive α-oxoaldehyde metabolite, produced by lipid peroxidation and autoxidation of glucose. In this work, a specific mitochondria-targeting fluorescent probe Z-GL for glyoxal has been developed by an introducing isopropyl group on the recognition site to tune the selectivity toward glyoxal. The probe showed high selectivity and sensitivity for glyoxal in an aqueous system. Importantly, the probe was able to visualize exogenous and endogenous glyoxal in living cells. Furthermore, the probe was mitochondria-targetable, and could be used for monitoring the level of intracellular glyoxal.
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