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论文类型： 期刊论文

发表时间： 2014-09-10

发表刊物： SMALL

收录刊物： SCIE、EI、PubMed、Scopus

卷号： 10

期号： 17,SI

页面范围： 3461-3479

ISSN号： 1613-6810

关键字： aqueous media,contaminants,enviromental safety,gold nanoparticles,optical reading

摘要： With increasing trends of global population growth, urbanization, pollution over-exploitation, and climate change, the safe water supply has become a global issue and is threatening our society in terms of sustainable development. Therefore, there is a growing need for a water-monitoring platform with the capability of rapidness, specifi city, low-cost, and robustness. This review summarizes the recent developments in the design and application of gold nanoparticles (AuNPs) based optical assays to detect contaminants in aqueous media with a high performance. First, a brief discussion on the correlation between the optical reading strategy and the optical properties of AuNPs is presented. Then, we summarize the principle behind AuNP-based optical assays to detect different contaminants, such as toxic metal ion, anion, and pesticides, according to different optical reading strategies: colorimetry, scattering, and fluorescence. Finally, the comparison of these assays and the outlook of AuNP-based optical detection are discussed.