Integrating Ionic Gate and Rectifier Within One Solid-State Nanopore via Modification with Dual-Responsive Copolymer Brushes

Wei Guo; Hongwei Xia; Liuxuan CaoFan XiaShutao WangGuangzhao ZhangYanlin SongYugang WangLei JiangDaoben Zhu

首页> 外文期刊>Advanced functional materials >Integrating Ionic Gate and Rectifier Within One Solid-State Nanopore via Modification with Dual-Responsive Copolymer Brushes

【24h】

Integrating Ionic Gate and Rectifier Within One Solid-State Nanopore via Modification with Dual-Responsive Copolymer Brushes

机译：Integrating Ionic Gate and Rectifier Within One Solid-State Nanopore via Modification with Dual-Responsive Copolymer Brushes

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

A dual-functional nanofluidic device is demonstrated that integrates the ionic gate and the ionic rectifier within one solid-state nanopore. The functionalities are realized by fabricating temperature- and pH-responsive poly(N-isopropyl aery lamide-co-acry lie acid) brushes onto the wall of a cone-shaped nanopore. At ca. 25℃, the nanopore works on a low ion conducting state. When the temperature is raised to ca. 40℃, the nanopore switches to a high ion conducting state. The closing/opening of the nanopore results from the temperature-triggered conformational transition of the attached copolymer brushes. Independently, in neutral and basic solutions, the conical nanopore rectifies the ionic current. While in acid solutions, no ion rectifying properties can be found. The charge properties of the copolymer brushes, combined with the asymmetrical pore geometry, render the nanopore a pH-tunable ionic rectifier. The chemical modification strategy could be applied to incorporate other stimuli-responsive materials for designing smart multi-functional nanofluidic systems resembling the "live" creatures in nature.

著录项

来源
《Advanced functional materials》 |2010年第20期|3561-3567|共7页
作者
Wei Guo; Hongwei Xia; Liuxuan CaoFan XiaShutao WangGuangzhao ZhangYanlin SongYugang WangLei JiangDaoben Zhu;
展开▼
作者单位

Beijing National Laboratory for Molecular Sciences (BNLMS)Key Laboratory of Organic Solids, Institute of Chemistry Chinese Academy of Sciences Beijing 100190, P. R. China;

Hefei National Laboratory for Physical Sciences at Microscale Department of Chemical Physics University of Science and Technology of China Hefei, Anhui 230026, China;

State Key Laboratory of Nuclear Physics and Technology Center for Applied Physics and Technology Peking University Beijing, 100871, P. R. China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类无线电电子学、电信技术;
关键词

Integrating Ionic Gate and Rectifier Within One Solid-State Nanopore via Modification with Dual-Responsive Copolymer Brushes

摘要

著录项

相关主题

期刊订阅