Micrometer-Scale Ion Current Rectification at Polyelectrolyte Brush-Modified Micropipets
文献类型：期刊论文
| 作者 | He, Xiulan1,2; Zhang, Kailin1; Li, Ting1,2; Jiang, Yanan1; Yu, Ping1,2; Mao, Lanqun1,2 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 139期号:4页码:1396-1399 |
| 英文摘要 | Here we report for the first time that ion current rectification (ICR) can be observed at the micrometer scale in symmetric electrolyte solution with polyimidazolium brush (PimB)-modified micropipets, which we call micrometer-scale ion current rectification (MICR). To qualitatively understand MICR, a three-layer model including a charged layer, an electrical double layer, and a bulk layer is proposed, which could also be extended to understanding ICR at the nanoscale. Based on this model, we propose that when charges in the charged layer are comparable with those in the bulk layer, ICR would occur regardless of whether the electrical double layers are overlapped. Finite element simulations based on the solution of Poisson and Nernst-Planck equations and in situ confocal laser scanning microscopy results qualitatively validate the experimental observations and the proposed three-layer model. Moreover, possible factors influencing MICR, including the length of PimB, electrolyte concentration, and the radius of the pipet, are investigated and discussed. This study successfully extends ICR to the micrometer scale and thus opens a new door to the development of ICR-based devices by taking advantage of ease-in-manipulation and designable surface chemistry of micropipets. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38071]  |
| 专题 | 化学研究所_活体分析化学实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Xiulan,Zhang, Kailin,Li, Ting,et al. Micrometer-Scale Ion Current Rectification at Polyelectrolyte Brush-Modified Micropipets[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017,139(4):1396-1399. |
| APA | He, Xiulan,Zhang, Kailin,Li, Ting,Jiang, Yanan,Yu, Ping,&Mao, Lanqun.(2017).Micrometer-Scale Ion Current Rectification at Polyelectrolyte Brush-Modified Micropipets.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(4),1396-1399. |
| MLA | He, Xiulan,et al."Micrometer-Scale Ion Current Rectification at Polyelectrolyte Brush-Modified Micropipets".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.4(2017):1396-1399. |
入库方式： OAI收割
来源：化学研究所
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