Polymersome stomatocytes: controlled shape transformation in polymer vesicles.

Autor: Kim KT; School of Nano-Biotechnology and Chemical Engineering, Ulsan National Institute of Science and Technology, Ulsan 689-798, Korea., Zhu J, Meeuwissen SA, Cornelissen JJ, Pochan DJ, Nolte RJ, van Hest JC
Jazyk: angličtina
Zdroj: Journal of the American Chemical Society [J Am Chem Soc] 2010 Sep 15; Vol. 132 (36), pp. 12522-4.
DOI: 10.1021/ja104154t
Abstrakt: We report here a controllable shape transformation of polymer vesicles (polymersomes) constructed from block copolymers of which the hydrophobic part is a high-molecular-weight glassy segment. Control over the shape transformation is obtained by kinetic manipulation of the phase behavior of this glassy hydrophobic segment. Kinetic manipulation of the phase behavior of polymer membranes allows for different shapes of polymersomes to be captured at specific times, which directly translates into physically robust nanostructures that are otherwise unobtainable. Combining the morphological diversity of giant liposomes and the physical robustness of polymersomes, our finding can be a general way to realize unusual nanostructures in a predictable manner.
Databáze: MEDLINE