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Citation
Tags
HERO ID
2850417
Reference Type
Journal Article
Title
Self-organization of amphiphilic polymer in vesicle bilayers composed of surfactant mixtures
Author(s)
Kang, SY; Seong, BS; Han, YS; Jung, HT
Year
2003
Is Peer Reviewed?
Yes
Journal
Biomacromolecules
ISSN:
1525-7797
Volume
4
Issue
2
Page Numbers
360-365
Language
English
PMID
12625732
DOI
10.1021/bm025704a
Web of Science Id
WOS:000181496300022
Abstract
Cryogenic transmission electron microscopy (cryo-TEM) and small angle neutron scattering (SANS) are used to investigate the association of amphiphilic polymers consisting of a double-chain hydrophobic tail attached onto poly(ethylene glycol) (PEG) polymer chains into two different systems of equilibrium vesicles. For cetyltrimethylammonium bromide (CTAB)/sodium perfluorohexanoate (FC(5)) vesicle bilayers, the size distribution of the vesicles slightly becomes narrow in the presence of the polymers, suggesting that the wedge-shaped polymers increase the spontaneous curvature of the vesicles. In contrast, the confinement of polymer molecules inside the CTAB/sodium perfluorooctanoate (FC(7)) vesicles that are stabilized by spontaneous curvature causes an abrupt decrease in the bilayer rigidity. By an analysis of vesicle size distribution, it is found that the membrane elasticity of CTAB/FC(7) vesicles is varied considerably from 6k(B)T to 0.3k(B)T, implying the transition of stabilization mechanism from spontaneous curvature to thermal fluctuation in the presence of polymer. The polymer incorporation mechanism into the bilayers is understood, in the comparison of the vesicle radius and size distribution before and after adding polymer, as that the polymer is anchored into the vesicle bilayer owing to hydrophobic property after the adsorption on the surface of the bilayer.
Tags
PFAS
•
Additional PFAS (formerly XAgency)
•
Expanded PFAS SEM (formerly PFAS 430)
Litsearch: September 2019
PubMed
Not prioritized for screening
Sodium perfluorooctanoate
•
^Per- and Polyfluoroalkyl Substances (PFAS)
PFHxA (307-24-4)
Literature Search
Pubmed
WOS
•
PFAS 150
Literature Search Update December 2020
PubMed
Literature Search August 2019
PubMed
Not prioritized for screening
Perfluorohexanoic acid
•
PFBA
Protocol References
•
PFHxA
Literature Search
Pubmed
WOS
LitSearch Update: February 2018
Term Set 2: Initial Search
PubMed
WoS
Literature Search
Pubmed
WOS
Scopus: April 2021
Screening Results
Excluded/Not on Topic
Title and Abstract Screening
Excluded
Not relevant to PECO
HAWC
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