Guided motion of short carbon nanotube driven by non-uniform electric field

被引：3
|
作者：
Xu, Zhen [1 ,2 ,3 ]
Hu, Guo-hui [1 ,2 ,3 ]
Wang, Zhi-liang [1 ,2 ,3 ]
Zhou, Zhe-wei [1 ,2 ,3 ]
机构：
[1] Shanghai Univ, Shanghai Inst Appl Math & Mech, Shanghai 200072, Peoples R China
[2] E Inst Shanghai Univ, Modern Mech Div, Shanghai 200072, Peoples R China
[3] Shanghai Univ, Shanghai Key Lab Mech Energy & Environm Engn, Shanghai 200072, Peoples R China
来源：
APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION | 2014年 / 35卷 / 05期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
guided motion; carbon nanotube (CNT); electric field with linear gradient; potential of mean force (PMF); WATER; NANOSCALE; BIOMOLECULES; SIMULATIONS; FLUID; LOAD;
D O I：
10.1007/s10483-014-1810-x
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The molecular dynamics simulations are performed to show that in aqueous environments, a short single-walled carbon nanotube (SWCNT) guided by a long SWCNT, either inside or outside the longer tube, is capable of moving along the nanotube axis unidirectionally in an electric field perpendicular to the carbon nanotube (CNT) axis with the linear gradient. The design suggests a new way of molecule transportation or mass delivery. To reveal the mechanism behind this phenomenon, the free energy profiles of the system are calculated by the method of the potential of mean force (PMF).
引用
收藏
页码：535 / 540
页数：6
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