Journal
RSC ADVANCES
Volume 5, Issue 89, Pages 73040-73045Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra14118d
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Funding
- base and cutting-edge technology research project of Henan province [142300410369]
- natural science research project of Henan province education department [2014A610013]
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A highly selective and sensitive boron-dipyrromethene (BODIPY) based fluorescent probe (Bodipy-Hy) for the detection of hypochlorous acid (HOCl) was designed and easily synthesized by the condensation reaction (C=N) of BODIPY aldehyde (BODIPY-AL) and hydrazine hydrate, which contain a newer group compared with other similar probes. With the specific HOCl-promoted oxidation grade of the C=N bond increasing, the fluorescence intensity of Bodipy-Hy gradually increased more than 11-fold. And the fluorescent quantum yield enhances from 0.06 to 0.62. A linear increase of fluorescence intensity could be observed under the optimum conditions with increasing HOCl concentration over a wide linear range 0-22.5 mu M, then a lower detection limit of 56 nM based on 3 x delta(blank)/k was obtained. Moreover, the probe can also be successfully applied to imaging HOCl in living cells with low cytotoxicity.
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