Amphiphilic block copolymer nanotubes and vesicles stabilized by photopolymerization

被引：26
|
作者：
Jofre, A.
Hutchison, J. B.
Kishore, R.
Locascio, L. E.
Helmerson, K.
机构：
[1] Natl Inst Stand & Technol, Phys Lab, Gaithersburg, MD 20899 USA
[2] Natl Inst Stand & Technol, Chem Sci & Technol Lab, Gaithersburg, MD 20899 USA
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2007年 / 111卷 / 19期
关键词：
D O I：
10.1021/jp071503v
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：
We report on a new method to stabilize nanotube and vesicle structures created from amphiphilic diblock copolymers by means of photopolymerization. Cross-linking with UV light exposure minimizes fluid disruption during stabilization. Additionally, the spatial control afforded by focusing or masking the initiating light source enables stabilization of distinct segments of individual nanostructures. This contribution demonstrates (1) that vesicles and nanotubes formed from poly(ethylene oxide)-block-polybutadiene are stabilized by exposure to UV light in the presence of a water-soluble photoinitiator and (2) that new nanotube geometries can be constructed by means of spot-curing, and (3) it reveals an application for photopolymerized nanotubes by showing electrophoresis of DNA through a UV-stabilized nanotube.
引用
收藏
页码：5162 / 5166
页数：5
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