Self-Diffusion of Rodlike Viruses through Smectic Layers

M. Paul Lettinga, Eric Grelet
2007 Physical Review Letters  
We report the direct visualization at the scale of single particles of mass transport between smectic layers, also called permeation, in a suspension of rod-like viruses. Self-diffusion takes place preferentially in the direction normal to the smectic layers, and occurs by quasi-quantized steps of one rod length. The diffusion rate corresponds with the rate calculated from the diffusion in the nematic state with a lamellar periodic ordering potential that is obtained experimentally.
doi:10.1103/physrevlett.99.197802 pmid:18233117 fatcat:6xw7yavcl5hczgjody3p5lxu6y