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基于双功能还原氧化石墨烯的可逆荧光纳米开关:用于 Hg2+ 的检测和分子逻辑门操作。

A reversible fluorescence nanoswitch based on bifunctional reduced graphene oxide: use for detection of Hg2+ and molecular logic gate operation.

机构信息

Key Laboratory of Eco-environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.

出版信息

Chem Commun (Camb). 2011 Jul 21;47(27):7800-2. doi: 10.1039/c1cc11631b. Epub 2011 Jun 1.

DOI:10.1039/c1cc11631b
PMID:21633746
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.

摘要

在这里,我们展示了还原氧化石墨烯 (rGO)-有机染料纳米开关在无标记、灵敏和选择性检测 Hg(2+)方面的首次应用,使用双功能 rGO 作为有效的纳米猝灭剂和高选择性纳米吸附剂。此外,还设计了基于半胱氨酸-Hg(2+)体系的可逆 ON-OFF rGO 逻辑门。

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