Lipid Nanotube Formation Using Space-Regulated Electric Field above Interdigitated Electrodes

被引：42

作者：

Bi, Hongmei ^{[1
]}

Fu, Dingguo ^{[1
]}

Wang, Lei ^{[1
]}

Han, Xiaojun ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem Engn & Technol, State Key Lab Urban Water Resource & Environm, Harbin 150001, Peoples R China

来源：

ACS NANO | 2014年 / 8卷 / 04期

基金：

中国国家自然科学基金;

关键词：

lipid nanotube; Interdigitated electrodes; AC electric field; finite element analysis; FRAP; BILAYER-MEMBRANES; GIANT VESICLES; TUBULES; ELECTROFORMATION; MICROSTRUCTURES; FABRICATION; TEMPLATES; CYLINDERS; NANOWIRES; EXTRUSION;

D O I：

10.1021/nn500876z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lipid nanotubes have great potential in biology and nanotechnology. Here we demonstrate a method to form lipid nanotubes using space-regulated AC electric fields above coplanar interdigitated electrodes. The AC electric field distribution can be regulated by solution height above the electrodes. The ratio of field component in x axis (Ex) to field component in z axis (Ez) increases dramatically at solution height below 50 mu m; therefore, at lower solution height, the force from Ex predominantly drives lipids to form lipid nanotubes along with the electric field direction. The forces exerted on the lipid nanotube during its formation were analyzed in detail, and an equation was obtained to describe the relationship among nanotube length and field frequency, amplitude, and time. We believe that the presented approach opens a way to design and prepare nanoscale materials with unique structural and functional properties using space-regulated electric fields.

引用

页码：3961 / 3969

页数：9

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