Novel structural features of the ripple phase of phospholipids

K. Sengupta; V. A. Raghunathan; J. Katsaras

doi:10.1209/epl/i2000-00210-x

Novel structural features of the ripple phase of phospholipids

K. Sengupta, V. A. Raghunathan, J. Katsaras

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23 Scopus citations

Abstract

We have calculated, from X-ray diffraction data, the electron density maps of the ripple phase of dimyristoylphosphatidylcholine (DMPC) and palmitoyl-oleoyl phosphatidylcholine (POPC) multibilayers at different temperatures and fixed relative humidity. Our analysis of the maps establishes the existence of an average tilt of the hydrocarbon chains of the lipid molecules along the direction of the ripple wave vector, which we believe is responsible for the occurrence of asymmetric ripples in these systems.

Original language	English
Pages (from-to)	722-728
Number of pages	7
Journal	EPL
Volume	49
Issue number	6
DOIs	https://doi.org/10.1209/epl/i2000-00210-x
State	Published - Mar 11 2000
Externally published	Yes

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title = "Novel structural features of the ripple phase of phospholipids",

abstract = "We have calculated, from X-ray diffraction data, the electron density maps of the ripple phase of dimyristoylphosphatidylcholine (DMPC) and palmitoyl-oleoyl phosphatidylcholine (POPC) multibilayers at different temperatures and fixed relative humidity. Our analysis of the maps establishes the existence of an average tilt of the hydrocarbon chains of the lipid molecules along the direction of the ripple wave vector, which we believe is responsible for the occurrence of asymmetric ripples in these systems.",

author = "K. Sengupta and Raghunathan, {V. A.} and J. Katsaras",

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AU - Raghunathan, V. A.

AU - Katsaras, J.

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Y1 - 2000/3/11

N2 - We have calculated, from X-ray diffraction data, the electron density maps of the ripple phase of dimyristoylphosphatidylcholine (DMPC) and palmitoyl-oleoyl phosphatidylcholine (POPC) multibilayers at different temperatures and fixed relative humidity. Our analysis of the maps establishes the existence of an average tilt of the hydrocarbon chains of the lipid molecules along the direction of the ripple wave vector, which we believe is responsible for the occurrence of asymmetric ripples in these systems.

AB - We have calculated, from X-ray diffraction data, the electron density maps of the ripple phase of dimyristoylphosphatidylcholine (DMPC) and palmitoyl-oleoyl phosphatidylcholine (POPC) multibilayers at different temperatures and fixed relative humidity. Our analysis of the maps establishes the existence of an average tilt of the hydrocarbon chains of the lipid molecules along the direction of the ripple wave vector, which we believe is responsible for the occurrence of asymmetric ripples in these systems.

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Novel structural features of the ripple phase of phospholipids

Abstract

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