Amplified Aptamer-Based Assay through Catalytic Recycling of the Analyte

被引:228
作者
Lu, Chun-Hua [1 ]
Li, Juan [1 ]
Lin, Mei-Hua [1 ]
Wang, Yi-Wei [1 ]
Yang, Huang-Hao [1 ]
Chen, Xi [1 ]
Chen, Guo-Nan [1 ]
机构
[1] Fuzhou Univ, Key Lab Anal & Detect Technol Food Safety, MOE, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Fuzhou 350002, Peoples R China
基金
中国国家自然科学基金;
关键词
aptamers; biological assays; graphene; nanomaterials; nucleases; GENE-REGULATION; NANOPARTICLES; GRAPHENE; PROBES; DELIVERY; COCAINE; SENSORS; BIOLOGY; PROTEIN; CELLS;
D O I
10.1002/anie.201002822
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Turn up the volume: In a simple and highly sensitive aptamer-based assay that relies on the ability of nanomaterials to protect DNA from nuclease cleavage, the aptamer is released from the nanomaterial when challenged with a target. The nuclease then cleaves the free aptamer and releases the target, which can initiate a new cycle. Recycling of the target in this way leads to significant signal amplification (see diagram). © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:8454 / 8457
页数:4
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