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SURFACE ENHANCED RAMAN SPECTROSCOPY USING SHAPED GOLD NANOPARTICLES
SURFACE ENHANCED RAMAN SPECTROSCOPY USING SHAPED GOLD NANOPARTICLES
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机译:异形金纳米粒子的表面增强拉曼光谱
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摘要
In one aspect, the invention relates to methods for enhancing a Raman signal comprising the steps of providing a sample comprising a metal surface, an analyte adhered to the surface, and a metallic nanoparticle coupled to the surface, wherein the nanoparticle has a plasmon resonance band; exposing the sample to incident energy of an excitation wavelength; and detecting the Raman signal of the analyte. In a further aspect, the invention relates to a composition comprising a metal surface, a functionalized self-assembled monolayer adhered to the surface, wherein the self-assembled monolayer comprises an analyte, and a cetyltrialkylammonium halide-capped metallic nanoparticle coupled to the surface. In a further aspect, the invention relates to a cetyltrimethylammonium bromide-capped gold nanoparticle and a method for preparing same. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
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