期刊
SMALL
卷 10, 期 17, 页码 3461-3479出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201303256
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资金
- National Research Foundation of Singapore (CREATE Programme of Nanomaterials for Energy and Water Management)
- National Research Foundation of Singapore [NRF-RF2009-04]
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.
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