Photoluminescent Graphene Oxide Microarray for Multiplex Heavy Metal Ion Analysis
Photoluminescent Graphene Oxide Microarray for Multiplex Heavy Metal Ion Analysis
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DOI:
10.1002/smll.201300499
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发表时间:
2013-10-25
期刊:
影响因子:
13.3
通讯作者:
Seo, Tae Seok
中科院分区:
文献类型:
--
作者:
Liu, Fei;Ha, Hyun Dong;Seo, Tae Seok
An aptamer-linked graphene oxide (GO) microarray is synthesized for multiplex heavy metal ion detection. Fluorescent nanosized GO sheets are micropatterned, and specific aptamers targeting Ag (+) and Hg (2+) are immobilized on the GO array. Upon capture of the target heavy metal ions, electron transfer occurs between the GO (donors) and the heavy metal ions (acceptors), leading to fluorescence quenching of the GO.