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用混合硫醇对 Ag 纳米粒子进行修饰以提高对吸附性差的目标分子的 SERS 检测:检测 MDMA。

Modification of Ag nanoparticles with mixed thiols for improved SERS detection of poorly adsorbing target molecules: detection of MDMA.

机构信息

Queen's University Belfast, Belfast BT9 5AG, UK.

出版信息

Chem Commun (Camb). 2011 Apr 21;47(15):4523-5. doi: 10.1039/c0cc05312k. Epub 2011 Mar 9.

DOI:10.1039/c0cc05312k
PMID:21387053
Abstract

Here we report an example of a mixed thiol monolayer on the surface of Ag nanoparticles which promotes adsorption and quantitative SERS detection of 3,4-methylenedioxymethamphetamine (MDMA, "Ecstasy"); the thiols in the mixed monolayers act synergistically since MDMA does not adsorb onto colloids modified with either of the thiols separately.

摘要

在这里,我们报告了一个在 Ag 纳米粒子表面上的混合硫醇单层的例子,该单层促进了 3,4-亚甲二氧基甲基苯丙胺(MDMA,“摇头丸”)的吸附和定量 SERS 检测;由于 MDMA 不会吸附到分别用两种硫醇修饰的胶体上,所以混合单层中的硫醇具有协同作用。

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