Volume 71, Number 4, August 2005
|Page(s)||692 - 698|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||22 July 2005|
Self-diffusion of rod-like viruses in the nematic phase
IFF, Institut Weiche Materie, Forschungszentrum Jülich - D-52425 Jülich, Germany
2 Rowland Institute at Harvard, Harvard University - Cambridge, MA 02142, USA
Accepted: 17 June 2005
We measure the self-diffusion of colloidal rod-like virus fd in an isotropic and nematic phase. A low-volume fraction of viruses are labelled with a fluorescent dye and dissolved in a background of unlabelled rods. The trajectories of individual rods are visualized using fluorescence microscopy from which the diffusion constant is extracted. The diffusion parallel () and perpendicular () to the nematic director is measured. The ratio () increases monotonically with increasing virus concentration. Crossing the isotropic-nematic phase boundary results in increase of and decrease of when compared to the diffusion in the isotropic phase ().
PACS: 82.70.-y – Disperse systems; complex fluids / 61.30.-v – Liquid crystals / 66.10.-x – Diffusion and ionic conduction in liquids
© EDP Sciences, 2005
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.