We have investigated DMPC: butanol and DPPC: hexanol systems with a high alcohol concentration (two molecules per phospholipid) by means of X-ray diffraction, differential scanning calorimetry and density measurements. A lowering of the main transition temperature for the membrane/alcohol systems has been observed. The phospholipid bilayer/alcohol systems are characterized by a higher density value than the pure membrane as determined by volumetric measurements. The analysis of diffraction patterns has shown the existence of a more packed structure in both systems due to the presence of alcohol. The area of polar head has also been estimated for both samples.
Titolo: | Effects of medium-chain alcohols on the structure of phospholipid bilayers |
Autori: | |
Data di pubblicazione: | 2012 |
Abstract: | We have investigated DMPC: butanol and DPPC: hexanol systems with a high alcohol concentration (two molecules per phospholipid) by means of X-ray diffraction, differential scanning calorimetry and density measurements. A lowering of the main transition temperature for the membrane/alcohol systems has been observed. The phospholipid bilayer/alcohol systems are characterized by a higher density value than the pure membrane as determined by volumetric measurements. The analysis of diffraction patterns has shown the existence of a more packed structure in both systems due to the presence of alcohol. The area of polar head has also been estimated for both samples. |
Handle: | http://hdl.handle.net/11570/3108716 |
ISBN: | 978-1-61499-070-3 |
Appare nelle tipologie: | 14.b.1 Contributo in volume (Capitolo o Saggio) |