Directed Self-Assembly of Lipid Nanotubes from Inverted Hexagonal Structures

被引：22
|
作者：
Sugihara, Kaori [1 ]
Chami, Mohamed [2 ]
Derenyi, Imre [3 ,4 ]
Voeroes, Janos [1 ]
Zambelli, Tomaso [1 ]
机构：
[1] ETH, Inst Biomed Engn, Lab Biosensors & Bioelect, CH-8092 Zurich, Switzerland
[2] Univ Basel, Biozentrum, Ctr Cellular Imaging & Nanoanalyt, Basel, Switzerland
[3] Eotvos Lorand Univ, Dept Biol Phys, H-1117 Budapest, Hungary
[4] ELTE MTA Lendulet Biophys Res Grp, H-1117 Budapest, Hungary
来源：
ACS NANO | 2012年 / 6卷 / 08期
基金：
瑞士国家科学基金会;
关键词：
1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE); inverted hexagonal structure; directed self-assembly; lipid nanotubes; polyelectrolytes; microfluidic systems; cryo-electron microscopy; PHASE-TRANSITIONS; MEMBRANE CURVATURE; VESICLES; TUBULES; CELLS; NETWORKS; PHOSPHOLIPIDS; EXTRUSION; SUPERSTRUCTURES; CHOLESTEROL;
D O I：
10.1021/nn300557s
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Conventional lipid-tube formation is based on either a tube phase of certain lipids or the shape transformation of lamellar structures by applying a point load. In the present study, lipid blocks in Inverted hexagonal phase made of 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) were shown to protrude lipid nanotubes upon a fluid-dynamic flow on polyelectrolyte-functionalized surfaces in physiological buffer solution. The outer diameter of the tubes is 19.1 +/- 4.5 nm and their lengths are up to several hundred micrometers. The method described enables the alignment and patterning of lipid nanotubes into various (including curvy) shapes with a microfluidic system.
引用
收藏
页码：6626 / 6632
页数：7
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