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<p>Excessive aluminum ions (Al<sup>3+</sup>) contaminate environmental water bodies, and once they remain in the human body, they will pose a threat to human health. In this paper, a benzothiazole-based fluorescent sensor named <b>BHMH</b> for detecting Al<sup>3+</sup> was successfully synthesized and comprehensively characterized. It exhibited remarkable selectivity and sensitivity, manifested by a substantial fluorescence augmentation and a discernible color alteration in the presence of Al<sup>3+</sup>. The job plot, <sup>1</sup>H NMR titration and HRMS demonstrated that the <b>BHMH</b> and Al<sup>3+</sup> complex exhibited a 1:1 stoichiometric binding affinity. Furthermore, the limit of detection (LOD) for Al<sup>3+</sup> was calculated as 4 × 10<sup>−8</sup> M. Additionally, <b>BHMH</b> demonstrated successful application in the precise detection of Al<sup>3+</sup> across diverse aqueous samples, test papers and cell imaging within living HSC cells.</p>

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A Benzothiazole Derived Fluorescent Sensor for Real-time Detection of Aluminums Ion and Application in Real Samples and Living Cells

  • 期刊论文

  • 发表日期：

    2025年9月6日

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  • Liangping Li,
  • Guiying Hu,
  • Wen Qin,
  • Zhiqian Liang,
  • Xuerong Yang,
  • Zhiyong Xing

摘要

Excessive aluminum ions (Al3+) contaminate environmental water bodies, and once they remain in the human body, they will pose a threat to human health. In this paper, a benzothiazole-based fluorescent sensor named BHMH for detecting Al3+ was successfully synthesized and comprehensively characterized. It exhibited remarkable selectivity and sensitivity, manifested by a substantial fluorescence augmentation and a discernible color alteration in the presence of Al3+. The job plot, 1H NMR titration and HRMS demonstrated that the BHMH and Al3+ complex exhibited a 1:1 stoichiometric binding affinity. Furthermore, the limit of detection (LOD) for Al3+ was calculated as 4 × 10−8 M. Additionally, BHMH demonstrated successful application in the precise detection of Al3+ across diverse aqueous samples, test papers and cell imaging within living HSC cells.