Dendrimer‐Based Gold Nanostructures for SERS Detection of Pesticides in Water,European Journal of Inorganic Chemistry

当前位置： X-MOL 学术 › Eur. J. Inorg. Chem. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Dendrimer‐Based Gold Nanostructures for SERS Detection of Pesticides in Water
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-01-14 , DOI: 10.1002/ejic.201901134
Tiago Fernandes ₁ , Sara Fateixa ₁ , Helena I. S. Nogueira ₁ , Ana L. Daniel-da-Silva ₁ , Tito Trindade ₁

Affiliation

Dendrimers are polymers with well‐defined architectures and tunable chemistry, which make them useful in a number of applications. Herein, the chemistry of poly(amido)amine (PAMAM) dendrimers with different functional groups was explored to produce a variety of plasmonic systems based on Au colloidal nanoparticles. The resulting systems present long‐term colloidal stability and were investigated as sensitive platforms for surface‐enhanced Raman scattering (SERS). The application of these SERS platforms for the detection of water trace pollutants, was explored through the analysis of selected pesticides. Noteworthy, dendrimer coated Au nanoparticles with tunable properties such as size, shape and surface chemistry, were obtained by varying the dendrimer chemical properties. The surface chemistry of PAMAM capped Au colloids was explored in order to produce target selective SERS substrates for pesticide detection, that allowed to reach detection limits down to 10 nm.

中文翻译：

基于树状聚合物的金纳米结构，用于水中SERS的农药检测

树枝状聚合物是具有定义明确的结构和可调化学性质的聚合物，这使其在许多应用中有用。在本文中，探索了具有不同官能团的聚（氨基）胺（PAMAM）树状大分子的化学反应，以产生基于金胶体纳米粒子的各种等离子体系统。所得的系统具有长期的胶体稳定性，并已作为表面增强拉曼散射（SERS）的敏感平台进行了研究。通过对选定农药的分析，探索了这些SERS平台在检测水中痕量污染物中的应用。值得注意的是，通过改变树枝状大分子的化学性质，获得了具有可调性质如大小，形状和表面化学性质的树枝状大分子包覆的Au纳米粒子。米。

更新日期：2020-01-14

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11