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https://hdl.handle.net/10356/99946
Title: | Plasmonic liquid marbles : a miniature substrate-less SERS platform for quantitative and multiplex ultratrace molecular detection | Authors: | Lee, Hiang Kwee Lee, Yih Hong Phang, In Yee Wei, Jiaqi Miao, Yue-E Liu, Tianxi Ling, Xing Yi |
Keywords: | DRNTU::Science::Chemistry | Issue Date: | 2014 | Source: | Lee, H. K., Lee, Y. H., Phang, I. Y., Wei, J., Miao, Y.-E., Liu, T., et al. (2014). Plasmonic Liquid Marbles: A Miniature Substrate-less SERS Platform for Quantitative and Multiplex Ultratrace Molecular Detection. Angewandte Chemie, 126(20), 5154-5158. | Series/Report no.: | Angewandte chemie | Abstract: | Inspired by aphids, liquid marbles have been studied extensively and have found application as isolated microreactors, as micropumps, and in sensing. 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. Our plasmonic liquid marble demonstrates excellent mechanical stability and is suitable for the quantitative examination of ultratrace analytes, with detection limits as low as 0.3 fmol, which corresponds to an analytical enhancement factor of 5×108. The results of our simultaneous detection scheme based on plasmonic liquid marbles and an aqueous–solid–organic interface quantitatively tally with those found for the individual detection of methylene blue and coumarin. | URI: | https://hdl.handle.net/10356/99946 http://hdl.handle.net/10220/19804 |
ISSN: | 0044-8249 | DOI: | 10.1002/ange.201401026 | Rights: | © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | SPMS Journal Articles |
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