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Issue 20, 2012
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Functionalized shell-isolated nanoparticle-enhanced Raman spectroscopy for selective detection of trinitrotoluene

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Abstract

Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS), which acts as the next generation of advanced spectroscopy, expands the versatility of surface-enhanced Raman spectroscopy (SERS). Here we present a facile one-step method to prepare functionalized core–shell nanoparticles for selective detection of trinitrotoluene (TNT) through the formation of Meisenheimer complexes. A well-designed type of tunable poly(2-aminothiophenol) (PAT) shells on gold nanoparticles was prepared for the first time and the shell thickness of 2 nm could be controlled by only adjusting the molar ratio of sodium dodecylsulfate (SDS) to 2-aminothiophenol. The polymer shells shows prominent advantages, including uniformity, better chemical stability, being free of pin-holes and amino-functionalized.

Graphical abstract: Functionalized shell-isolated nanoparticle-enhanced Raman spectroscopy for selective detection of trinitrotoluene

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Publication details

The article was received on 11 Jul 2012, accepted on 08 Aug 2012 and first published on 09 Aug 2012


Article type: Communication
DOI: 10.1039/C2AN35947B
Citation: Analyst, 2012,137, 4644-4646
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    Functionalized shell-isolated nanoparticle-enhanced Raman spectroscopy for selective detection of trinitrotoluene

    K. Qian, H. Liu, L. Yang and J. Liu, Analyst, 2012, 137, 4644
    DOI: 10.1039/C2AN35947B

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