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Effect of bilayer phase transitions on vesicle structure and its influence on the kinetics of viologen reduction.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry.
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry.
1995 (English)In: Journal of physical chemistry, ISSN 0022-3654, Vol. 99, no 39, 14531-14538 p.Article in journal (Other academic) Published
Abstract [en]

Vesicles were prepared from pure phosphatidylcholines (PC), phosphatidic acids (PA), or dioctadecyldimethylamonium bromide (DODAB). The aggregate structure was examined above and below the gel-to-liquid crystalline transition temperature (T-m) by means of cryo-transmission electron microscopy. The redox reaction between a membrane bound viologen and dithionite was studied in the different lipid systems. It was found that the presence of faceted vesicles or open bilayer fragments, below T-m, lead to double-exponential reduction kinetics.

Place, publisher, year, edition, pages
1995. Vol. 99, no 39, 14531-14538 p.
Keyword [en]
DIOCTADECYLDIMETHYLAMMONIUM BROMIDE, UNILAMELLAR VESICLES, DITHIONITE ION, MEMBRANE, CALORIMETRY, PROBES, SYSTEM, FUSION, ACID
Identifiers
URN: urn:nbn:se:uu:diva-75814ISI: A1995RX87500047OAI: oai:DiVA.org:uu-75814DiVA: diva2:103725
Note
Addresses: UNIV UPPSALA, DEPT PHYS CHEM, S-75121 UPPSALA, SWEDEN.Available from: 2006-12-19 Created: 2006-12-19 Last updated: 2011-03-21Bibliographically approved

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