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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b01143
|2 doi
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|a pubmed24n0866.xml
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|a (NLM)27142706
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
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|a Tanasescu, Radu
|e verfasserin
|4 aut
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| 245 |
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|a Vesicle Origami and the Influence of Cholesterol on Lipid Packing
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 29.05.2018
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|a Date Revised 29.05.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The artificial phospholipid Pad-PC-Pad was analyzed in 2D (monolayers at the air/water interface) and 3D (aqueous lipid dispersions) systems. In the gel phase, the two leaflets of a Pad-PC-Pad bilayer interdigitate completely, and the hydrophobic bilayer region has a thickness comparable to the length of a single phospholipid acyl chain. This leads to a stiff membrane with no spontaneous curvature. Forced into a vesicular structure, Pad-PC-Pad has faceted geometry, and in its extreme form, tetrahedral vesicles were found as predicted a decade ago. Above the main transition temperature, a noninterdigitated Lα phase with fluid chains has been observed. The addition of cholesterol leads to a slight decrease of the main transition temperature and a gradual decrease in the transition enthalpy until the transition vanishes at 40 mol % cholesterol in the mixture. Additionally, cholesterol pulls the chains apart, and a noninterdigitated gel phase is observed. In monolayers, cholesterol has an ordering effect on liquid-expanded phases and disorders condensed phases. The wavenumbers of the methylene stretching vibration indicate the formation of a liquid-ordered phase in mixtures with 40 mol % cholesterol
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Water
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|a 059QF0KO0R
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|a Cholesterol
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|2 NLM
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| 700 |
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|a Lanz, Martin A
|e verfasserin
|4 aut
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|a Mueller, Dennis
|e verfasserin
|4 aut
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|a Tassler, Stephanie
|e verfasserin
|4 aut
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| 700 |
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|a Ishikawa, Takashi
|e verfasserin
|4 aut
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| 700 |
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|a Reiter, Renate
|e verfasserin
|4 aut
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|a Brezesinski, Gerald
|e verfasserin
|4 aut
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| 700 |
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|a Zumbuehl, Andreas
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 32(2016), 19 vom: 17. Mai, Seite 4896-903
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:32
|g year:2016
|g number:19
|g day:17
|g month:05
|g pages:4896-903
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|u http://dx.doi.org/10.1021/acs.langmuir.6b01143
|3 Volltext
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