Rhodopsin in a new model bilayer membrane

Christophe N. Kossi, Roger M. Leblanc

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

In search of a planar and uniform model membrane presenting a wide interaction-surface for the study of photobiological processes, we have succeeded in depositing lipid bilayer on a single face of a porous disc. Using a method that combines the Langmuir-Blodgett dipping and the touching procedures, a symmetrical or asymmetrical bilayer membrane has been obtained. The illumination of rhodopsin-containing membranes appears to increase the permeability to K+, Na+, and Ca2+ with a high selectivity for Ca2+. The bilayer adsorption on the porous disc is discussed and an attempt is made to explain the failure of the dipping method in our experimental conditions for preparing an artificial membrane. A comparative look at model membranes is also presented.

Original languageEnglish (US)
Pages (from-to)426-436
Number of pages11
JournalJournal of Colloid And Interface Science
Volume80
Issue number2
DOIs
StatePublished - Apr 1981
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Surfaces, Coatings and Films
  • Colloid and Surface Chemistry

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