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题名: Biomimetic Nanofluidic Diode Composed of Dual Amphoteric Channels Maintains Rectification Direction over a Wide pH Range
作者: Sui, Xin1; Zhang, Zhen2; Zhang, Zhenyu3; Wang, Zhiwei1; Li, Chao1; Yuan, Hao4; Gao, Longcheng1; Wen, Liping2; Fan, Xia1; Yang, Lijun5; Zhang, Xinru4; Jiang, Lei1, 2
关键词: amphoteric nanochannels ; block copolymers ; ion transport ; nanofluidic diodes ; ph-gating
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2016-10-10
卷: 55, 期:42, 页:13056-13060
收录类别: SCI
英文摘要: pH-gated ion channels in cell membranes play important roles in the cell's physiological activities. Many artificial nanochannels have been fabricated to mimic the natural phenomenon of pH-gated ion transport. However, these nanochannels show pH sensitivity only within certain pH ranges. Wide-range pH sensitivity has not yet been achieved. Herein, for the first time, we provide a versatile strategy to increase the pH-sensitive range by using dual amphoteric nanochannels. In particular, amphoteric polymeric nanochannels with carboxyl groups derived from a block copolymer (BCP) precursor and nanochannels with hydroxyl groups made from anodic alumina oxide (AAO) were used. Due to a synergistic effect, the hybrid nanochannels exhibit nanofluidic diode properties with single rectification direction over awide pH range. The novel strategy presented here is a scalable, low-cost, and robust alternative for the construction of large-area membranes for nanofluidic applications, such as the separation of biomolecules.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35500
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Beihang Univ, Lab Bioinspired Smart Interfacial Sci & Technol, Minist Educ, Key Lab Beijing Energy,Sch Chem & Environm, Beijing 100191, Peoples R China
2.Chinese Acad Sci, Key Lab Bioinspired Mat & Interfacial Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China
3.Peking Univ, Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys, Minist Educ,Coll Chem & Mol Engn, Beijing 100871, Peoples R China
4.Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
5.Beihang Univ, Sch Astronaut, Beijing 100191, Peoples R China
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