Sunday, 11 May 2014
Mechanics of lipid membranes
Researchers describe a method for investigating the viscosity of lipid membranes. Tracers consisting of two microspheres coupled to a specific lipid allowed measurements of translational and rotational diffusion co-efficient and thus viscosity. The method showed that adding vesicle trafficking protein Sar1p to membranes resulted in dramatic increase in membrane viscosity.
Measuring Lipid Membrane Viscosity Using Rotational and Translational Probe Diffusion; T.T. Hormel et al; Physical Review Letters; 112, 188101 (2014)