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
Seo, Tae Seok
中科院分区:
材料科学1区
文献类型:
--
作者:
Liu, Fei;Ha, Hyun Dong;Seo, Tae Seok

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合成了适配体连接的氧化石墨烯(GO)微阵列,用于多重重金属离子检测。荧光纳米级 GO 片具有微图案,针对 Ag (+) 和 Hg (2+) 的特定适体固定在 GO 阵列上。捕获目标重金属离子后,GO(供体)和重金属离子(受体)之间发生电子转移,导致 GO 的荧光猝灭。
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.