The gel phase of dipalmitoyl phosphatidylcholine. An infrared characterization of the acyl chain packing

Biochim Biophys Acta. 1980 Mar 13;596(3):463-7. doi: 10.1016/0005-2736(80)90135-2.

Abstract

It is shown, by infrared spectroscopy, that the packing in the gel phase of fully-hydrated dipalmitoyl phosphatidylcholine is not uniform over a large temperature range. With decreasing temperature, starting at that of the pretransition, there is a gradual change in the molecular packing of the acyl chains, from near hexagonal to orthorhombic of monoclinic.

MeSH terms

  • Gels
  • Lipid Bilayers*
  • Molecular Conformation
  • Pulmonary Surfactants*
  • Spectrophotometry, Infrared
  • Spectrum Analysis, Raman
  • Temperature

Substances

  • Gels
  • Lipid Bilayers
  • Pulmonary Surfactants