Digital quantitative detection of serum circulating miRNAs using dual-enhanced magnetobiosensors based on cascaded nucleic acid circuits
2019
Liu, Chunxue | An, Yayun | Zhang, Yuanfu | Li, Xia | Xue, Qingwang | Wang, Huaisheng
The tough challenges for the convenient and quantitative determination of circulating miRNAs (cmiRNAs) in the peripheral blood are low abundance, high interference and lack of direct digital readout. Here, we developed dual-enhanced magnetobiosensors based on cascaded nucleic acid circuits, which integrate catalyzed hairpin assembly (CHA) with the hybridization chain reaction (HCR), for sensitive, portable and digital quantitative detection of circulating miRNAs in serum by a personal glucose meter (PGM).
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