Electrical birefringence study of monodisperse collagen solutions
β Scribed by J. C. Bernengo; B. Roux; D. Herbage
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1974
- Tongue
- English
- Weight
- 300 KB
- Volume
- 13
- Category
- Article
- ISSN
- 0006-3525
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β¦ Synopsis
Abstract
Acidβsoluble collagen solution in 0.1 M acetic acid are studied by electrical birefringence. Specific birefringence is independant of concentration (for c < 100 mg/l.) and follows Kerr's law at low fields. Birefringence decays present a single relaxation time, and reversing pulse experiments show a very low contribution of induced moment compared to permanent dipole orientation. This result is also confirmed by birefringence rise measurements.
π SIMILAR VOLUMES
The electric birefringence of collagen solutions has been measured over a wide range of field strength with the pulse technique. The soluble collagen was from rat tail tendon. The solvent used was dilute acetic acid. Very pronounced saturation of the electric birefringence was observed, permitting c
## Abstract A tentative and phenomenological analysis of negative electric birefringence, which has often been observed as an anomalous birefringence phenomenon in a concentrated solution of rodlike macromolecules, is presented. Tobacco mosaic virus (TMV) was used as a typical example for the inves
## Abstract Transient electric birefringence measurements on poly(Lβlysine hydrobromide) in methanolβwater mixtures have been carried out at various solvent compositions in the vicinity of the helixβcoil transition region (from 87 to 98 vol % methanol). Anomalous birefringence transients were obser
Optical rotation, viscosity, and density studies are reported on solutions of a-gelatin in solvent mixtures of water and various monohydric alcohols. Reversion to the collagen fold by the protein is shown to be first order in all cases, but changes in magnitude as a function of concentration of the