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rdf:type |
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lifeskim:mentions |
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pubmed:issue |
1
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pubmed:dateCreated |
2005-3-8
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pubmed:abstractText |
We present a temperature-induced sedimentation/dispersion transition of ionic vesicles in the system of alkyldimethylamine oxide hemihydrochloride (CnDMAO.1/2HCl) with a hydrocarbon chain length of 12-16 (n = 12, 14, and 16) and sodium 2-naphthalenesulfonate (NaNphS). The temperature-sensitive sedimentation/dispersion of ionic vesicles took place around a temperature of 50 degrees C, which was weakly dependent on the alkyl chain length. The combined effect of the thermally induced dissociation of the counterions from the vesicle and a hydrogen bonding between the nonionic and the cationic head groups is likely to be responsible for this unique behavior.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0021-9797
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pubmed:author |
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pubmed:issnType |
Print
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pubmed:day |
1
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pubmed:volume |
284
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
349-53
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:15752823-Chemical Precipitation,
pubmed-meshheading:15752823-Cryoelectron Microscopy,
pubmed-meshheading:15752823-Dimethylamines,
pubmed-meshheading:15752823-Electrophoresis,
pubmed-meshheading:15752823-Liposomes,
pubmed-meshheading:15752823-Microscopy, Polarization,
pubmed-meshheading:15752823-Naphthalenesulfonates,
pubmed-meshheading:15752823-Nephelometry and Turbidimetry,
pubmed-meshheading:15752823-Oxides,
pubmed-meshheading:15752823-Static Electricity,
pubmed-meshheading:15752823-Surface Properties,
pubmed-meshheading:15752823-Surface-Active Agents,
pubmed-meshheading:15752823-Transition Temperature
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pubmed:year |
2005
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pubmed:articleTitle |
Temperature-induced sedimentation to dispersion of ionic vesicles.
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pubmed:affiliation |
Department of Chemistry, Faculty of Science, Kyushu University 33, Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. hkawascc@mbox.nc.kyushu-u.ac.jp
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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