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https://hdl.handle.net/10356/82702
Title: | A coordination and ligand replacement based three-input colorimetric logic gate sensing platform for melamine, mercury ions, and cysteine | Authors: | Zhang, Lulu Yuan, Yanwen Wen, Xinglin Li, Yue Cao, Cuong Xiong, Qihua |
Keywords: | Biosensors | Issue Date: | 2015 | Source: | Zhang, L., Yuan, Y., Wen, X., Li, Y., Cao, C., & Xiong, Q. (2015). A coordination and ligand replacement based three-input colorimetric logic gate sensing platform for melamine, mercury ions, and cysteine. RSC Advances, 5(73), 59106-59113. | Series/Report no.: | RSC Advances | Abstract: | Discrimination of different species in various target scopes within a single sensing platform can provide many advantages such as simplicity, rapidness, and cost effectiveness. Here we design a three-input colorimetric logic gate, based on the aggregation and anti-aggregation of gold nanoparticles (Au NPs), for the sensing of melamine, cysteine, and Hg2+. The concept makes use of the advantages of the highly specific coordination and ligand replacement reactions between melamine, cysteine, Hg2+, and Au NPs. Different outputs are obtained with the combinational inputs in the logic gates, which can serve as a reference to discriminate different analytes within a single sensing platform. Furthermore, besides the intrinsic sensitivity and selectivity of Au NPs to melamine-like compounds, the “INH” gates of melamine/cysteine and melamine/Hg2+ in this logic system can be employed for sensitive and selective detections of cysteine and Hg2+, respectively. | URI: | https://hdl.handle.net/10356/82702 http://hdl.handle.net/10220/40292 |
ISSN: | 2046-2069 | DOI: | 10.1039/C5RA09570K | Schools: | School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences |
Rights: | © 2015 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | EEE Journal Articles SPMS Journal Articles |
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