dorsal/arxiv
View SchemaAn approximate cooperativity analysis by DSC of phase transitions of DPPC-DOCNa dispersions
| Authors | Stefan Hobai |
|---|---|
| Categories | |
| ArXiv ID | physics/0101022 |
| URL | https://arxiv.org/abs/physics/0101022 |
Abstract
The effect of solute, sodium deoxycholate bile salt (DOCNa), on the cooperativity of ordered-fluid, fosfolipid phase transition has been investigated by determining of the transition widths in multibilayer dispersions of the dipalmitoylphosphatidylcholine (DPPC)-DOCNa mixtures. The DT1/2 values were determined by differential scanning calorimetry. The van't Hoff values of the main transition enthalpies were calculated using an approximative expression, deduced from Zimm and Bragg theory [Sturtevant,J.M.(1982), Proc.Natl.Acad.Sci.USA,79:3963-3967]. The bile salt decreases the cooperativity (size of cooperative unit) of DPPC bilayers.
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"abstract": "The effect of solute, sodium deoxycholate bile salt (DOCNa), on the\ncooperativity of ordered-fluid, fosfolipid phase transition has been\ninvestigated by determining of the transition widths in multibilayer\ndispersions of the dipalmitoylphosphatidylcholine (DPPC)-DOCNa mixtures. The\nDT1/2 values were determined by differential scanning calorimetry. The van\u0027t\nHoff values of the main transition enthalpies were calculated using an\napproximative expression, deduced from Zimm and Bragg theory\n[Sturtevant,J.M.(1982), Proc.Natl.Acad.Sci.USA,79:3963-3967]. The bile salt\ndecreases the cooperativity (size of cooperative unit) of DPPC bilayers.",
"arxiv_id": "physics/0101022",
"authors": [
"Stefan Hobai"
],
"categories": [
"physics.chem-ph"
],
"title": "An approximate cooperativity analysis by DSC of phase transitions of DPPC-DOCNa dispersions",
"url": "https://arxiv.org/abs/physics/0101022"
},
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