This title appears in the Scientific Report :
2005
Please use the identifier:
http://hdl.handle.net/2128/22929 in citations.
Please use the identifier: http://dx.doi.org/10.1209/epl/i2005-10127-x in citations.
Self-diffusion of rod-like viruses in the nematic phase
Self-diffusion of rod-like viruses in the nematic phase
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...
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Personal Name(s): | Lettinga, M. P. |
---|---|
Barry, E. / Dogic, Z. | |
Contributing Institute: |
Weiche Materie; IFF-IWM |
Published in: | epl, 71 (2005) S. 692 - 698 |
Imprint: |
Les Ulis
EDP Sciences
2005
|
Physical Description: |
692 - 698 |
DOI: |
10.1209/epl/i2005-10127-x |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Europhysics Letters
71 |
Subject (ZB): | |
Link: |
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Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1209/epl/i2005-10127-x in citations.
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 (D-parallel to) and perpendicular (D-perpendicular to) to the nematic director is measured. The ratio (D-parallel to/D-perpendicular to) increases monotonically with increasing virus concentration. Crossing the isotropic-nematic phase boundary results in increase of D-parallel to and decrease of D-perpendicular to when compared to the diffusion in the isotropic phase (D-iso). |