NDLI: PH response behavior of giant vesicles comprised of amphiphilic poly(methacrylic acid)-block-poly(methyl methacrylate-random-mathacrylic acid)

Content Provider	Springer Nature Link
Author	Yoshida, Eri
Copyright Year	2014
Abstract	The pH-dependent transformation of micro-sized giant vesicles comprised of amphiphilic poly(methacrylic acid)-block-poly(methyl methacrylate-random-methacrylic acid) was investigated in order to explore the possibility of using the giant vesicles as artificial models of biomembranes. The vesicles prepared by the photopolymerization-induced self-assembly in an aqueous methanol solution retained their spherical shape and size when placed in water at pH 7.1. The vesicles were disrupted by a pH increase and finally dissociated into micelles at pH 12.8. The vesicles were reconstructed by decreasing the pH to 7.5; however, they had a film-like morphology due to the interaggregation by the salt generated during the neutralization process. The film-like morphology was transformed into spherical vesicles when placed in an aqueous methanol solution. The reconstructed spherical vesicles included budding and hand-shaped vesicles, indicating that spherical vesicles were formed by the budding separation and by way of a bilayer-rod transition.
Starting Page	649
Ending Page	653
Page Count	5
File Format	PDF
ISSN	0303402X
Journal	Colloid and Polymer Science
Volume Number	293
Issue Number	2
e-ISSN	14351536
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-12-09
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PH response Giant vesicles Amphiphilic random block copolymer Poly(methacrylic acid)-block-poly(methyl methacrylate-random-methacrylic acid) Spherical vesicles Film-like morphology Budding separation Bilayer-rod transition Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry Food Science Nanotechnology and Microengineering
Content Type	Text
Resource Type	Article
Subject	Colloid and Surface Chemistry Materials Chemistry Physical and Theoretical Chemistry Polymers and Plastics

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