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Molecularly imprinted polymeric film on semiconductor nanoparticles:Analyte detection by quantum dot photoluminescence

Authors
Journal
Journal of Chromatography A
0021-9673
Publisher
Elsevier
Publication Date
Volume
1027
Identifiers
DOI: 10.1016/j.chroma.2003.10.037
Keywords
  • Molecular Imprinting
  • Quantum Dot Photoluminescence Detection
  • Photoluminescence Detection
  • Detection
  • Lc
Disciplines
  • Physics

Abstract

Abstract Incorporation of semiconductor nanoparticles into molecularly imprinted polymer provides a sensor material which can be easily shaped and with better selectivity because the bound template would quench the photoluminescence (PL) emission of quantum dots significantly. In this work, artificial receptors of various templates were synthesized with functional monomers such as methacrylic acid (MAA), semiconductor like CdSe/ZnS core–shell derivatized with 4-vinylpyridine and ethylene glycol dimethacrylic acid as the cross-linker. The quenching of photoluminescence emissions is presumably due to the fluorescence resonance energy transfer between quantum dots and template molecules. The photoluminescence emission is unaffected upon incubation of analyte with the blank control polymer.

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