Optical reading of contaminants in aqueous media based on gold nanoparticles by Du, Jianjun, Zhu, Bowen, Peng, Xiaojun, Chen, Xiaodong

“…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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Plasmonic liquid marbles : a miniature substrate-less SERS platform for quantitative and multiplex ultratrace molecular detection by Lee, Hiang Kwee, Lee, Yih Hong, Phang, In Yee, Wei, Jiaqi, Miao, Yue-E, Liu, Tianxi, Ling, Xing Yi

“…However, current liquid-marble-based sensing methodologies are limited to qualitative colorimetry-based detection. Herein we describe the fabrication of a plasmonic liquid marble as a substrate-less analytical platform which, when coupled with ultrasensitive SERS, enables simultaneous multiplex quantification and the identification of ultratrace analytes across separate phases. …”
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