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Title: Colorimetric detection of mercury ions based on plasmonic nanoparticles
Authors: Du, Jianjun
Jiang, Lin
Shao, Qi
Liu, Xiaogang
Marks, Robert S.
Ma, Jan
Chen, Xiaodong
Keywords: DRNTU::Engineering::Materials::Nanostructured materials
Issue Date: 2013
Source: Du, J., Jiang, L., Shao, Q., Liu, X., Marks, R. S., Ma, J., et al. (2013). Colorimetric Detection of Mercury Ions Based on Plasmonic Nanoparticles. Small, 9(9-10), 1467-1481.
Series/Report no.: Small
Abstract: The development of rapid, specific, cost-effective, and robust tools in monitoring Hg2+ levels in both environmental and biological samples is of utmost importance due to the severe mercury toxicity to humans. A number of techniques exist, but the colorimetric assay, which is reviewed herein, is shown to be a possible tool in monitoring the level of mercury. These assays allow transforming target sensing events into color changes, which have applicable potential for in-the-field application through naked-eye detection. Specifically, plasmonic nanoparticle-based colorimetric assay exhibits a much better propensity for identifying various targets in terms of sensitivity, solubility, and stability compared to commonly used organic chromophores. In this review, recent progress in the development of gold nanoparticle-based colorimetric assays for Hg2+ is summarized, with a particular emphasis on examples of functionalized gold nanoparticle systems with oligonucleotides, oligopeptides, and functional molecules. Besides highlighting the current design principle for plasmonic nanoparticle-based colorimetric probes, the discussions on challenges and the prospect of next-generation probes for in-the-field applications are also presented.
ISSN: 1613-6810
DOI: 10.1002/smll.201200811
Rights: © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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