A Graphene Oxide–Organic Dye Ionic Complex with DNA‐Sensing and Optical‐Limiting Properties

作者：Janardhan Balapanuru, Jiaxiang Yang, Si Xiao, Qiaoliang Bao, Maryam Jahan, Lakshminarayana Polavarapu, Ji Wei, Qing‐Hua Xu, Kian Ping Loh · 发表于：Angewandte Chemie International Edition · 年份：2010 · DOI：10.1002/anie.201001004 · 被引用次数：345 · 研究领域：Luminescence and Fluorescent Materials、Graphene and Nanomaterials Applications、Nonlinear Optical Materials Studies

A charge-transfer complex between graphene oxide (GO) and pyrene dye PNPB has been synthesized by a simple ion-exchange process. Its highly specific interactions with DNA compared to other biomolecules (see scheme) allows selective and rapid detection of DNA in biological mixtures. It also exhibits broadband optical limiting.