Main phase transition depression by incorporation of alkanols in DPPC vesicles in the gel state: Influence of the solute topology

LUIS FELIPE AGUILAR CAVALLO, C. P. Sotomayor, E. A. Lissi

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Diphenylhexatriene is employed to sense the changes elicited in dipalmitoylphosphatidylcholine large unilamellar vesicles by the incorporation of several alkanols. From the dependence of the observed anisotropy values upon the surfactant concentration, pseudo partition constants of alkanols are obtained under conditions in which the vesicles are intermediate between the gel and liquid crystalline states. These data, together with previous data obtained at lower alkanol concentrations, allow an evaluation of the dependence of the alkanol incorporation on the solute concentration. The effect of the solute topology is investigated by employing linear and highly branched alkanols.

Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume108
Issue number2-3
DOIs
StatePublished - 20 Mar 1996

Keywords

  • alkanols
  • DPPC vesicles
  • gel
  • phase transition
  • solute topology

Fingerprint Dive into the research topics of 'Main phase transition depression by incorporation of alkanols in DPPC vesicles in the gel state: Influence of the solute topology'. Together they form a unique fingerprint.

Cite this