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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.5b00229
|2 doi
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|a pubmed24n0823.xml
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Catapano, Elisa R
|e verfasserin
|4 aut
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| 245 |
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|a Thermomechanical transitions of egg-ceramide monolayers
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|c 2015
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 04.01.2016
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|a Date Revised 07.04.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Ceramides have unique biophysical properties. Their high melting temperature and their ability to form lateral domains have converted ceramides into the paradigm of rigid lipids. Here, using shear surface rheology of egg-ceramide Langmuir monolayers, a solid to fluid transition was evidenced as a vanishing shear rigidity at lower temperatures than the lipid melting temperature. Such a mechanical transition, which depends on the lipid lateral pressure, was found in a broad range temperature (40-50 °C). The solid to fluid transition was correlated to a LC to LC+LE phase transition, as confirmed by BAM experiments. Interestingly, together with the softening transition, a supercooling process compatible with a glassy behavior was found upon freezing. A new phase scenario is then depicted that broadens the mechanical behavior of natural ceramides. The phase diversity of ceramides might have important implications in their physiological roles
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Ceramides
|2 NLM
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|a Lipid Bilayers
|2 NLM
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|a Lillo, M P
|e verfasserin
|4 aut
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|a García Rodríguez, C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Natale, P
|e verfasserin
|4 aut
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1 |
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|a Langevin, D
|e verfasserin
|4 aut
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|a Monroy, F
|e verfasserin
|4 aut
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|a López-Montero, I
|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 31(2015), 13 vom: 07. Apr., Seite 3912-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:31
|g year:2015
|g number:13
|g day:07
|g month:04
|g pages:3912-8
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|u http://dx.doi.org/10.1021/acs.langmuir.5b00229
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