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A reversible fluorescence nanoswitch based on bifunctional reduced graphene oxide: use for detection of Hg2+ and
Wei Tao Huang1, Yan Shi, Wan Yi Xie
1Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
Chemical Communications (Cambridge, England)
|June 3, 2011
Abstract:
Herein, we demonstrate the first use of a reduced graphene oxide (rGO)-organic dye nanoswitch for the label-free, sensitive and selective detection of Hg(2+) using bifunctional rGO as an effective nanoquencher and highly selective nanosorbent. Moreover, a reversible on-off INHIBIT rGO logic gate based on a cysteine-Hg(2+) system has also been designed.
