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Analysis with biological nanopore: On-pore, off-pore strategies and application in biological fluids
Talanta ( IF 6.1 ) Pub Date : 2020-09-28 , DOI: 10.1016/j.talanta.2020.121684
Yunjiao Wang , Youwen Zhang , Xiaohan Chen , Xiyun Guan , Liang Wang

Inspired from ion channels in biology, nanopores have been developed as promising analytical tools. In principle, nanopores provide crucial information from the observation and analysis of ionic current modulations caused by the interaction between target analytes and fluidic pores. In this respect, the biological, chemical and physical parameters of the nanopore regime need to be well-understood and regulated for intermolecular interaction. Because of well-defined molecular structures, biological nanopores consequently are of a focal point, allowing precise interaction analysis at single-molecule level. In this overview, two analytical strategies are summarized and discussed accordingly, upon the challenges arising in case-dependent analysis using biological nanopores. One kind of strategies relies on modification, functionalization and engineering on nanopore confined interface to improve molecular recognition sites (on-pore strategies); The other kind of highlighted strategies concerns to measurement of various chemistry/biochemistry based interactions triggered by employed molecular agents or probes (off-pore strategies). In particularly, a few recent paradigms using these strategies for practical application of accurate analysis of biomarkers in biological fluids are illustrated. To end, the challenging and future outlook of using analytical tools by means of biological nanopores are depicted.



中文翻译:

使用生物纳米孔进行分析:孔内,孔外策略及其在生物流体中的应用

受生物学中离子通道的启发,纳米孔已被开发为有前途的分析工具。原则上,纳米孔从观察和分析由目标分析物和流体孔之间的相互作用引起的离子电流调制中提供关键信息。在这方面,需要充分理解和调节纳米孔机制的生物学,化学和物理参数以进行分子间相互作用。由于分子结构的明确定义,生物纳米孔因此成为焦点,可在单分子水平上进行精确的相互作用分析。在本概述中,针对使用生物纳米孔进行病例依赖性分析带来的挑战,总结并讨论了两种分析策略。一种策略依赖于修改,在纳米孔受限界面上进行功能化和工程化,以改善分子识别位点(孔内策略);另一种突出的策略涉及由所采用的分子试剂或探针触发的各种基于化学/生物化学的相互作用的测量(孔隙策略)。特别地,示出了使用这些策略的一些最近的范例,用于在生物流体中精确分析生物标志物的实际应用。最后,描绘了通过生物纳米孔使用分析工具的挑战性和未来前景。另一种突出的策略涉及测量由所采用的分子试剂或探针触发的各种基于化学/生物化学的相互作用(孔隙策略)。特别地,示出了使用这些策略的一些最近的范例,用于在生物流体中精确分析生物标志物的实际应用。最后,描绘了通过生物纳米孔使用分析工具的挑战性和未来前景。另一种突出的策略涉及由所采用的分子试剂或探针触发的各种基于化学/生物化学的相互作用的测量(孔隙策略)。特别地,示出了使用这些策略的一些最近的范例,用于在生物流体中精确分析生物标志物的实际应用。最后,描绘了通过生物纳米孔使用分析工具的挑战性和未来前景。

更新日期:2020-10-07
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