## Abstract We consider the behaviour of single molecules on surfaces and, more generally, in confined environments. These are loosely split into three sections: single molecules in biology, the physics of single molecules on surfaces and controlled (directed) diffusion. With recent advances in sin
Distinct Diffusion in Macromolecule-Solvent Mixtures
β Scribed by Alessandro Vergara
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 108 KB
- Volume
- 14
- Category
- Article
- ISSN
- 1022-1344
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## Abstract Diffusivities of fluoresceinβlabeled macromolecules were measured in dilute aqueous solution (D~β~), agarose gels (D~a~), and agaroseβdextran composite gels (D) using fluorescence recovery after photobleaching. Macromolecules with StokesβEinstein radii (r~s~) ranging from 2.7 to 5.9 nm
The effect on the ordinary coefficient of diffusion of the mobilities of two interdiffusing, non-ionic components is evaluated by a straightforward application of the equations of irreversible thermodynamics along the lines suggested by DE GROOT [l]. The form of the resultant equations for the diffu