Bottom-Up Evolution of Vesicles from Disks to High-Genus Polymersomes.
Bottom-Up Evolution of Vesicles from Disks to High-Genus Polymersomes.
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DOI:
10.1016/j.isci.2018.08.018
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发表时间:
2018-09-28
期刊:
影响因子:
5.8
通讯作者:
Battaglia G
中科院分区:
文献类型:
--
作者:
Contini C;Pearson R;Wang L;Messager L;Gaitzsch J;Rizzello L;Ruiz-Perez L;Battaglia G
Polymersomes are vesicles formed by the self-assembly of amphiphilic copolymers in water. They represent one of the most promising alternatives of natural vesicles as they add new possibilities in the amphiphiles' molecular engineering of aqueous compartments. Here we report the design of polymersomes using a bottom-up approach wherein self-assembly of amphiphilic copolymers poly(2-(methacryloyloxy) ethyl phosphorylcholine)-poly(2-(diisopropylamino) ethyl methacrylate) (PMPC-PDPA) into membranes is tuned using pH and temperature. We report evolution from disk micelles, to vesicles, to high-genus vesicles (vesicles with many holes), where each passage is controlled by pH switch or temperature. We show that the process can be rationalized, adapting membrane physics theories to disclose scaling principles that allow the estimation of minimal radius of vesiculation as well as chain entanglement and coupling. This approach allows us to generate nanoscale vesicles with genus from 0 to 70, which have been very elusive and difficult to control so far. Membrane-confined compartments are the most exquisite examples of self-assembly We mimic compartmentalization using self-assembling polymers We show that bottom-up assembly evolves from disk to vesicles to high-genus vesicles We combine experiments and theory to fully elucidate vesiculation Polymer Chemistry; Materials Chemistry; Colloids
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影响因子:
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通讯作者:
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