4.7 Article

A reusable biosensor for detecting mercury(II) at the subpicomolar level based on turn-on resonance light scattering

Journal

CHEMICAL COMMUNICATIONS
Volume 49, Issue 17, Pages 1750-1752

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cc38488h

Keywords

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Funding

  1. Natural Science Foundation of China [21005036, 20875042, 21075058, 21127006]
  2. Natural Science Foundation [ZR2010BZ004, JQ201106]
  3. Tai-Shan Scholar Research Fund of Shandong Province

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A reusable sensing strategy employing magnetic nanoparticles and thymine-containing aptamers was developed to detect Hg2+ in real water samples based on turn-on'' resonance light scattering. The LOD was as low as 500 fM (S/N=3), and the present sensor can be repeatedly used for at least seven cycles.

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