Document Detail

Matrix effect in oleate micelles-vesicles transformation.
MedLine Citation:
PMID:  14979657     Owner:  NLM     Status:  MEDLINE    
It is accepted by many authors that the formation of closed molecular structures is a key step in the evolution of life. Oleate vesicles represent a good model system in this framework due to the fact that they self-assemble spontaneously and that fatty acids are considered as possible prebiotic structures. In this contribution, we will focus the attention on the transition from oleate micelles to oleic acid/oleate vesicles induced by a pH change. This transformation is strongly influenced by the presence of pre-formed vesicles. We called this phenomenon the matrix effect. The influence of pre-added POPC liposomes (POPC = 1-palmitoyl-2-oleoyl-sn-glycerol-3-phosphocholine) and oleic acid/oleate vesicles on the process rate and on the final size distribution will be discussed elucidating the main differences between these two systems.
Silvia Rasi; Fabio Mavelli; Pier Luigi Luisi
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life     Volume:  34     ISSN:  0169-6149     ISO Abbreviation:  Orig Life Evol Biosph     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-02-24     Completed Date:  2004-09-23     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8610391     Medline TA:  Orig Life Evol Biosph     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  215-24     Citation Subset:  IM; S    
Institute of Polymers Swiss Federal Institute of Technology (ETH-Z) Zürich, Switzerland.
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MeSH Terms
Oleic Acid / chemistry*
Scattering, Radiation
Reg. No./Substance:
0/Micelles; 112-80-1/Oleic Acid

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