Lentinan is an antitumor homoglucan' isolated from Lentinus edodes, an edible mushroom popular in Japan, and it has a backbone constituted mainly of a chain of P-D-( 1+3)-linked D-glucopyranosyl residues2\*3. Its molecular weight was recently reported4 to be 3 x 10' to 8 x 105. Its hydrodynamic char
Rigidity of fibrin gels as measured by quasielastic light scattering
β Scribed by R. A. Gelman; J. A. Gladner; R. Nossal
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1980
- Tongue
- English
- Weight
- 729 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0006-3525
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β¦ Synopsis
Abstract
The strength of fibrin gels has been investigated by a recently developed laser light scattering technique for determining the shear modulus of soft gels. By this method, changes in the modulus were monitored as a function of time without perturbing the material. Fibrin gels were crosslinked with blood coagulation factor XIII. Rigidity measurements and SDSβpolyacrylamide gel electrophoresis were used to correlate gel strength with the number of covalently bonded subunit chains. The modulus was found to vary linearly with the number of crosslinks until maximum rigidity was achieved.
π SIMILAR VOLUMES
## Abstract The normal modes for a mixture of charged macromolecules and electrolyte solution are calculated. We derive a generalized Debye relaxation time and the apparent diffusion coefficient of the macroion, which is shown to increase from its Stokes value, obtained in excess of added salt, wit
Quasielastic light scattering methods were used to study calf thymus DNA in solutions of LiCl, NaCl, NHdAc, and NH4Cl. Plots of the reciprocal relaxation time (1/7) vs sinz(O/2), where 6 is the scattering angle, exhibit two linear regions, in accordance with theories for semiflexible polymers based
## Quasielastic neutron scattering has been used to study the motion of protons in two solutions of poly(y-benzyl L-glutamate) (PBLG) and deuterated benzyl alcohol (DBA) as they are brought from the high temperature (cholesteric and isotropic) phase towards the gel. Quasielastic neutron scattering
## Abstract The polymerization of fibrin induced by the enzyme thrombin was investigated in the pregelation phase by combining measurements of the release of the fibrinopeptides A with static and dynamic lightβscattering at scattering angles ranging from 5Β°β150Β°. Without making any assumptions abou