Abstract
A novel 1,8 - naphthalimide - ebselen fluorescent probe BPHN was synthesized. BPHN has great fluorescence properties: high quantum yield (0.5932), large Stokes shift (125 nm) and remarkable stability at wide pH range (5–11). The results of fluorescence spectroscopy experiments show that BPHN can recognize H2S selectively and sensitively. BPHN exhibits low LOD (0.129 μM) and fast response (90 s). The potential of BPHN as a biosensor for H2S was demonstrated by imaging of exogenous H2S in living cells. BPHN can also detect H2S qualitatively and quantitatively in actual water samples.
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