4.6 Article

SERS and OWGS detection of dynamic trapping molecular TNT based on a functional self-assembly Au monolayer film

Journal

ANALYST
Volume 138, Issue 6, Pages 1858-1864

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c3an36683a

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Funding

  1. National Basic Research Program of China [2011CB933700]
  2. Major national scientific instrument and equipment development project [2011YQ0301241001, 2011YQ0301241101]
  3. State Key Laboratory of Physical Chemistry of Solid Surfaces [200911]

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A gold monolayer film and cysteine layer-by-layer self-assemble onto modified glasses, and through the use of optical waveguide spectroscopy (OWGS) and a dynamic SERS technique for the first time to study the dynamic generation process of the Meisenheimer complex between TNT and cysteine. This strategy can detect TNT down to 1 nM with high sensitivity and selectivity.

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