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dc.contributor.authorZhang, Luluen
dc.contributor.authorYuan, Yanwenen
dc.contributor.authorWen, Xinglinen
dc.contributor.authorLi, Yueen
dc.contributor.authorCao, Cuongen
dc.contributor.authorXiong, Qihuaen
dc.identifier.citationZhang, 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.en
dc.description.abstractDiscrimination 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.en
dc.description.sponsorshipNRF (Natl Research Foundation, S’pore)en
dc.description.sponsorshipMOE (Min. of Education, S’pore)en
dc.format.extent8 p.en
dc.relation.ispartofseriesRSC Advancesen
dc.rights© 2015 The Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.en
dc.titleA coordination and ligand replacement based three-input colorimetric logic gate sensing platform for melamine, mercury ions, and cysteineen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Electrical and Electronic Engineeringen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.description.versionPublished versionen
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