Macromolecular Rapid Communications 2015-02-01

The effect of stabilizer on the mechanical response of double-emulsion-templated polymersomes.

Woo-Sik Jang, Seung Chul Park, Miju Kim, Junsang Doh, Daeyeon Lee, Daniel A Hammer

文献索引：Macromol. Rapid Commun. 36(4) , 378-84, (2015)

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摘要

Recent studies have shown that polymersomes templated by microfluidic double-emulsion possess several advantages such as high monodispersity and encapsulation efficiency compared with those generated based on thin-film rehydration and electroformation. Stabilizers, including bovine serum albumin (BSA) and polyvinyl alcohol (PVA), have been used to enhance the formation and stability of double emulsions that are used as templates for the generation of polymersomes. In this work, the effect of stabilizers on the mechanical response of double-emulsion-templated polymersomes using micropipette aspiration is investigated. It is demonstrated that the existence of stabilizers results in the inelastic response in poly-mersomes in the early stage of solvent removal. However, aged polymersomes that have little residual solvent show elastic behavior. Polymersomes prepared from PVA-stabilized double emulsions have noticeably lower area expansion moduli than polymersomes prepared from stabilizer-free and BSA-stabilized double emulsions, suggesting that PVA is incorporated in the bilayer membrane of polymersomes. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

相关化合物

  • 氯仿
  • 蔗糖
  • 正己烷
  • 丁二烯

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