压力对带有pH值可调聚电解质刷的仿生纳米孔中离子选择性的影响

CORC > 厦门大学 > 2017年第23卷

	压力对带有pH值可调聚电解质刷的仿生纳米孔中离子选择性的影响; Effect of Pressure on Ion Selectivity in Biomimetic Nanopores with pH-Tunable Polyelectrolyte Brushes
	单惠霞 ; 曾振平 ; 叶礼贤 ; 束峰 ; SHAN Hui-xia ; ZENG Zhen-ping ; YE Li-xian ; SHU Feng
刊名	http://electrochem.xmu.edu.cn/CN/abstract/abstract10256.shtml
	2017-02-28
关键词	pH值可调聚电解质层合成纳米孔离子传输离子选择性 pH-tunable polyelectrolyte layer synthetic nanopore ion transport ion selectivity
英文摘要	具有pH值可调聚电解质（Polyelectrolyte，PE）刷的合成纳米孔的仿生离子通道在纳米尺度下离子、流体和生物粒子的主动运输控制方面具有重大应用潜力. 离子选择性是纳流体设备中离子传输的重要现象，具有很大的现实意义和实用价值. 本文提出了施加压力控制纳米孔中离子选择度的方法，综合研究了溶液pH值、浓度、外加电压和压力对离子选择度的影响. 仿真结果表明，离子选择度对压力的刺激是敏感的，且不像电压对离子选择度的影响会受到溶液pH值和浓度的制约，且方向不定，速度不可控；压力对离子选择度的影响不受溶液性质制约，并且灵活可控. 该结果对设计带pH值可调聚电解质刷的纳米孔有重要的启发作用.; Biomimetic ionic channels of synthetic nanopores functionalized with pH-tunable polyelectrolyte (PE) brushes have significant application potentials for active transport control of ions, fluids, and bioparticles on the nanoscale. Ion selectivity is an important phenomenon of ion transport in nanofluidic devices, which has great theoretical significance and practical values. We propose a pressure control scheme to control the ion selectivity in biomimetic nano-systems with pH-tunable PE brushes. Effects of the solution properties (i.e., pH and background salt concentration), the applied voltage and pressure on ion selectivity are comprehensively investigated. The results show that ion selectivity is sensitive to pressure. Unlike the influence of voltage on ion selectivity which is subject to pH and background salt concentration with uncertain directions and uncontrollable speeds, the influence of pressure on ion selectivity is not restricted by the properties of the solution, and has fixed directions and flexible and controllable speeds. The obtained result is a good inspiration for the design of synthetic nanopores functionalized with pH-tunable PE brushes.; 国家自然科学基金项目（No. 61271230, No. 61472190）资助; 作者联系地址：1. 南京理工大学电子工程与光电技术学院，南京 210094；2. 国立云林科技大学化学工程与材料工程系，云林 64002，台湾；3. 中国电波传播研究所，青岛 266107; Author's Address: 1.School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China; 2. Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Yunlin 64002, Taiwan; 3. China Research Institute of Radiowave Propagation，Qingdao 266107，P. R. China; 通讯作者E-mail：zengzhenping@njust.edu.cn
语种	中文
出版者	厦门大学《电化学》编辑部
内容类型	期刊论文
源URL	[http://dx.doi.org/10.13208/j.electrochem.160104]
专题	2017年第23卷
推荐引用方式 GB/T 7714	单惠霞,曾振平,叶礼贤,等. 压力对带有pH值可调聚电解质刷的仿生纳米孔中离子选择性的影响, Effect of Pressure on Ion Selectivity in Biomimetic Nanopores with pH-Tunable Polyelectrolyte Brushes[J]. http://electrochem.xmu.edu.cn/CN/abstract/abstract10256.shtml,2017.
APA	单惠霞.,曾振平.,叶礼贤.,束峰.,SHAN Hui-xia.,...&SHU Feng.(2017).压力对带有pH值可调聚电解质刷的仿生纳米孔中离子选择性的影响.http://electrochem.xmu.edu.cn/CN/abstract/abstract10256.shtml.
MLA	单惠霞,et al."压力对带有pH值可调聚电解质刷的仿生纳米孔中离子选择性的影响".http://electrochem.xmu.edu.cn/CN/abstract/abstract10256.shtml (2017).