MoS2 nanosheet-based fluorescent biosensor for protein detection via terminal protection of small-molecule-linked DNA and exonuclease III-aided DNA recycling amplification

文献类型： 外文期刊

第一作者： Xiang, Xia

作者： Xiang, Xia;Huang, Fenghong;Zheng, Mingming;Deng, Qianchun;Xu, Jiqu;Shi, Jianbin

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关键词： MoS2 nanosheet;Fluorescent biosensor;Protein detection;Terminal protection of small-molecule-linked DNA;Exonuclease III

期刊名称：BIOSENSORS & BIOELECTRONICS （ 影响因子：10.618； 五年影响因子：9.323 ）

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收录情况： SCI

摘要： A new MOS2 nanosheet-based fluorescent biosensor for protein detection is developed. This method combines the terminal protection of small-molecule-linked DNA (TPSMLD) and exonuclease III (Exo III)aided DNA recycling amplification to convert protein assay into the highly sensitive detection of DNA. Taking the streptavidin (SA)-biotin system as a model, a detection limit of 0.67 ng mL(-1) SA is obtained with a good selectivity. The study demonstrated here not only offers simple, sensitive and selective detection method for protein assay, but also will expand the application of the emerging 2D nanomaterials into biological assay. (C) 2015 Elsevier B.V. All rights reserved.

分类号： Q

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