What caliber pore is like a pipe?: Nanotubes as modulators of ionic gradients

被引:9
作者
Fernández, A [1 ]
机构
[1] Univ Chicago, Dept Comp Sci, Inst Biophys Dynam, Chicago, IL 60637 USA
[2] Indiana Univ, Sch Med, Dept Biochem & Mol Biol, Indianapolis, IN 46202 USA
[3] Indiana Univ, Sch Informat, Ctr Computat Biol & Bioinformat, Indianapolis, IN 46202 USA
关键词
D O I
10.1063/1.1606439
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Carbon nanotubes are shown to be modulators of ionic gradients possibly impacting artificial nanophysiology. In contrast with wider nanotubes, the ion traffic inside narrow nanotubes (similar to9.45 Angstrom diameter) eventually reaches steady stoichiometries which may be dramatically different from bulk ratios. The narrow nanotube reduces the polarizability of confined water so that charge imbalances inside cannot be sustained. (C) 2003 American Institute of Physics.
引用
收藏
页码:5315 / 5319
页数:5
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