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The physicochemical properties of metallic substrates are affected by the environment in different ways. It is generally difficult to determine these effects because the molecules in the environment interact weakly with metallic substrates. In this work, we demonstrate that even the effect of volatile organic compounds (VOCs) can be identified by utilizing the surface-enhanced Raman scattering of...
We demonstrate that the NC stretching band of 2,6-dimethylphenylisocyanide (2,6-DMPI) adsorbed on poly(ethylenimine)-capped Au film is very susceptible to the kind of biogenic volatile organic compounds (VOCs) exposed, suggesting that the isocyanide-adsorbed noble metal nanostructures can be used as a platform for a biogenic VOC sensor operating via surface-enhanced Raman scattering (SERS). Specifically,...
A nanogap formed by a metal nanoparticle and a flat metal substrate is one kind of “hot site” for surface-enhanced Raman scattering (SERS). In this sense, the characteristics of 1,4-phenylenediisocyanide (1,4-PDI) trapped in a nanogap formed by a flat Au or Ag substrate and 60nm-sized Au or Ag nanoparticles have been examined by means of Raman scattering spectroscopy. It is noteworthy that the NC...
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