On the stability of the ripple phase in the DPPC/PLPC/water ternary system

Title

On the stability of the ripple phase in the DPPC/PLPC/water ternary system

Creator

Checchetti A; Chidichimo G; Golemme A; Grasso D; Imbardelli D; LaRosa C; Nicoletta F P; Westerman P W

Publisher

Chemistry and Physics of Lipids

Date

1997
1997-11

Description

The effect of incorporation of 1-palmitoyl-sn-glycero-3-phosphocholine (PLPC) on the structure of the P-beta' ripple mesophase in aqueous dispersions of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) has been studied by differential scanning calorimetry (DSC) and scanning dilatometry (SD). For samples containing 34 wt. % (H2O)-H-2 and 0-15 wt. % PLPC, a pretransition was observed by DSC. The pretransition disappears at 15 wt. % PLPC. The behavior of thermodynamic functions at the pretransition and main transition gives new insights on the structural changes produced by PLPC on bilayers of DPPC. (C) 1997 Elsevier Science Ireland Ltd.

Subject

Biophysics; Biochemistry & Molecular Biology; gel; cholesterol; lysolecithin; membranes; nuclear-magnetic-resonance; water; transition; lipid bilayers; phospholipid-bilayers; Lipids; differential scanning calorimetry (DSC); lecithin; phosphatidylcholine; phosphatidylcholine bilayers; pretransition; scanning dilatometry (SD)

Format

Journal Article or Conference Abstract Publication

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Rights

Article information provided for research and reference use only. All rights are retained by the journal listed under publisher and/or the creator(s).

Pages

109-115

Issue

1

Volume

90

Citation

Checchetti A; Chidichimo G; Golemme A; Grasso D; Imbardelli D; LaRosa C; Nicoletta F P; Westerman P W, “On the stability of the ripple phase in the DPPC/PLPC/water ternary system,” NEOMED Bibliography Database, accessed September 24, 2021, https://neomed.omeka.net/items/show/8859.

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