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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/18697

Title: Phase Transitions of Binary Lipid Mixtures: A Combined Study by Adiabatic Scanning Calorimetry and Quartz Crystal Microbalance with Dissipation Monitoring
Authors: LOSADA-PEREZ, Patricia
Mertens, Nadja
de Medio-Vasconcelos, B.
Leys, J.
PEETERS, Marloes
Gruber, J.
Glorieux, C.
Pfeiffer, H.
WAGNER, Patrick
Thoen, J.
Issue Date: 2015
Citation: Advances in Condensed Matter Physics, 2015
Abstract: The phase transitions of binary lipid mixtures are studied by a combination of Peltier-element-based adiabatic scanning calorimetry (pASC) and quartz crystal microbalance with dissipation monitoring (QCM-D). pASC, a novel type of calorimeter, provides valuable and unambiguous information on the heat capacity and the enthalpy, whereas QCM-D is proposed as a genuine way of determining phase diagrams by analysing the temperature dependence of the viscosity. Two binary mixtures of phospholipids with the same polar head and differing in the alkyl chain length, DMPC + DPPC and DMPC + DSPC, are discussed. Both techniques give consistent phase diagrams, which compare well with literature results, showing their capability to map the phase behaviour of pure lipids as well as lipid mixtures. This work can be considered as a departure point for further investigations on more complex lipid mixtures displaying relevant phases such as the liquid-ordered phase and solid-lipid interfaces with biologically functional importance.
Notes: Losada-Perez, P (reprint author), Losada-Perez, P (reprint author) patricia.losadaperez@uhasselt.be
URI: http://hdl.handle.net/1942/18697
DOI: 10.1155/2015/479318
ISI #: 000349113400001
ISSN: 1687-8108
Category: A1
Type: Journal Contribution
Validation: ecoom, 2016
Appears in Collections: Research publications

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