A highly efficient and selective turn‐on fluorescent sensor for Hg<sup>2+</sup>, Ag<sup>+</sup> and Ag nanoparticles based on a coumarin dithioate derivative

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書誌事項

公開日
2013-05-22
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/bio.2521
公開者
Wiley

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説明

<jats:title>ABSTRACT</jats:title><jats:p>Based on chelation‐enhanced fluorescence, a new fluorescent coumarin derivative probe 3(1‐(7‐hydroxy‐4‐methylcoumarin)ethylidene)hydrazinecarbodithioate for Hg<jats:sup>2+</jats:sup>, Ag<jats:sup>+</jats:sup> and Ag nanoparticles is reported. Fluorescent probe acts as a rapid and highly selective “off–on” fluorescent probe and fluorescence enhancement by factors 5 to12 times was observed upon selective complexation with Hg<jats:sup>2+</jats:sup>, Ag<jats:sup>+</jats:sup> and Ag nanoparticles. The molar ratio plots indicated the formation of 1:1 complexes between Hg<jats:sup>2+</jats:sup> and Ag<jats:sup>+</jats:sup> with the probe. The linear response range covers a concentration range 0.1 × 10<jats:sup>–5</jats:sup>–1.9 × 10<jats:sup>–5</jats:sup> mol/L, 0.1 × 10<jats:sup>–5</jats:sup>–2.3 × 10<jats:sup>–5</jats:sup> mol/L and 0.146 × 10<jats:sup>–12</jats:sup>–2.63 × 10<jats:sup>–12</jats:sup> mol/L for Hg<jats:sup>2+</jats:sup>, Ag<jats:sup>+</jats:sup> and Ag nanoparticles, respectively. The interference effect of some anions and cations was also tested. Copyright © 2013 John Wiley & Sons, Ltd.</jats:p>

収録刊行物

  • Luminescence

    Luminescence 29 (2), 158-167, 2013-05-22

    Wiley

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