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<p>Two novel water-soluble A-D-A fluorescent probes (<b>H01</b> and <b>H02</b>), composed of a phenol moiety that functions as a latent donor in conjugation with two picoliniums, were designed and synthesized for selective detection of hypochlorite. Both probes show rapid response to hypochlorite and a favorable linear correlation between hypochlorite concentration and fluorescent intensity. And the detection limit is calculated as 3.39 µM for <b>H01</b> and 4.95 µM for <b>H02</b>, respectively. These probes also exhibit high selectivity, rapid response (3 s) and large Stokes shift. Both exhibit good biocompatibility, allowing effective monitoring of the exogenous hypochlorite fluctuations in living cells.</p>

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Water-soluble A-D-A Fluorescent Probes with Large Stokes Shift for Hypochlorite Detection

  • 期刊论文

  • 发表日期：

    2026年7月9日

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  • Huanhuan Du,
  • Shirui Zhao,
  • Xiaohai Tang,
  • Zhiai Xu,
  • Yongmei Cui

摘要

Two novel water-soluble A-D-A fluorescent probes (H01 and H02), composed of a phenol moiety that functions as a latent donor in conjugation with two picoliniums, were designed and synthesized for selective detection of hypochlorite. Both probes show rapid response to hypochlorite and a favorable linear correlation between hypochlorite concentration and fluorescent intensity. And the detection limit is calculated as 3.39 µM for H01 and 4.95 µM for H02, respectively. These probes also exhibit high selectivity, rapid response (3 s) and large Stokes shift. Both exhibit good biocompatibility, allowing effective monitoring of the exogenous hypochlorite fluctuations in living cells.