4.7 Article

Reversible and Sensitive Hg2+ Detection by a Cell-Permeable Ytterbium Complex

Journal

INORGANIC CHEMISTRY
Volume 57, Issue 1, Pages 120-128

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.7b02243

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Funding

  1. Hong Kong Research Grants Council (HKBU) [22301615]
  2. Hong Kong Baptist University [FRG 1/16-17/016, SDF 15-0324-P03]

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A cell-permeable ytterbium complex shows reversible binding with Hg2+ in aqueous solution and in vitroby off-on visible and NIR emission. The fast response and 150 nM sensitivity of Hg2+ detection is based upon FRET and the lanthanide antenna effect. The reversible Hg2+ detection can be performed in vitro, and the binding mechanism is suggested by NMR employing the motif structure in a La complex and by DFT calculations.

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