4.7 Article

Selective picomolar detection of mercury(II) using optical sensors

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 6, Pages 1842-1844

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc04860g

Keywords

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Funding

  1. Direccion General de Investigacion (Spain) [CTQ2006-06333/BQU, CTQ2008-01402]
  2. Generalitat de Catalunya [2009 SGR-00516, XERMAE]
  3. Fundacion Seneca (CARM) [04509/GERM/06]
  4. CIBER-BBN, ISCIII
  5. MEC

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The rational design of a mercury(II) ligand consisting in a 1-(4 '-oxyphenyl)-4(1 '-pyrenyl)-2,3-diaza-1,3-butadiene receptor unit, optimizes the sensitivity and reliability of a SPR sensor by the formation of a well packed SAM over the gold surface. SPR analysis allows detecting mercury(II) concentrations in aqueous systems in the picomolar range, meliorating on three orders of magnitude the EU mercury(II) detection limit in drinkable water.

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