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Alizarin red S-zinc(II) fluorescent ensemble for selective detection of hydrogen sulphide and assay with an H2S donor

机译:茜素红S-ZINC(II)荧光集合用于选择性检测硫化氢和H2S供体的测定

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摘要

A new Alizarin Red S based fluorescent probe ARS-Zn(II) has been reported for the detection of H2S in aqueous buffer solution. In the presence of zinc ions, ARS displayed an increase in fluorescence intensity through the formation of an ARS-Zn(II) ensemble. The addition of H2S to the ensemble caused the disassembly of the metal and ARS, which restored the fluorescence intensity of ARS. This sensing ensemble exhibited H2S-selectivity over other biothiols and biologically relevant analytes. The calculated detection limit of ARS-Zn(II) with H2S was 92 nM. ARS-Zn(II) also detected H2S in serum under physiological conditions. Moreover, as a practical application, it could be used for the real time monitoring of H2S released from the H2S-donor molecule benzoic (methyl carbonic) dithioperoxyanhydride and also applied to live cell imaging. The reported ensemble ARS-Zn(II) has advantages like ready availability, high selectivity with good sensitivity, fast response time, higher excitation (520 nm) and emission (625 nm) wavelengths and real time fluorescence assay with H2S donors.
机译:据报道,据报道了一种新的茜素红S荧光探针ARS-ZN(II)用于检测水性缓冲溶液中的H2。在存在锌离子的存在下,通过形成Ars-Zn(II)合奏显示荧光强度的增加。将H2S加入整体引起金属和AR的拆卸,其恢复了ARS的荧光强度。该感测集合体在其他生物醇和生物学相关分析物中表现出H2S选择性。用H2S的Ars-Zn(II)的计算限制为92nm。 ARS-Zn(II)在生理条件下也检测到血清中的H2S。此外,作为一种实际应用,它可用于从H2S-供体分子苯甲酸(甲基碳碳)二硫代苯甲酸酐中释放的H2S的实时监测,并应用于活细胞成像。报告的集合ARS-Zn(II)具有易于可用性,具有良好的灵敏度,快速响应时间,更高激发(520nm)和发射(625nm)波长和具有H 2 S供体的实时荧光测定的优点。

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  • 来源
    《RSC Advances》 |2015年第97期|共8页
  • 作者单位

    NIT Kurukshetra Dept Chem Kurukshetra 136119 Haryana India;

    NIT Kurukshetra Dept Chem Kurukshetra 136119 Haryana India;

    NIT Kurukshetra Dept Chem Kurukshetra 136119 Haryana India;

    Guru Nanak Dev Univ Dept Chem Amritsar Punjab India;

    Guru Nanak Dev Univ Dept Bot &

    Environm Sci Amritsar Punjab India;

    Guru Nanak Dev Univ Dept Bot &

    Environm Sci Amritsar Punjab India;

    NIT Kurukshetra Dept Chem Kurukshetra 136119 Haryana India;

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  • 正文语种 eng
  • 中图分类 化学;
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