We report an experimental study of rotational and translational diffusion and sedimentation of colloidal tracer spheres in semidilute solutions of the nonadsorbing semiflexible polymer xanthan. The tracers are optically anisotropic, permitting depolarized dynamic light scattering measurements without interference from the polymer background. The xanthan solutions behave rheologically like model semidilute polymeric solutions with long-lived entanglements. On the time scale of tracer motion the xanthan solutions are predominantly elastic. The generalized Stokes-Einstein relation describing the polymer solution as a continuous viscous fluid therefore severely overestimates the tracer hindrance. Instead, effective medium theory, describing the...
© 2000 American Chemical SocietyThe diffusion coefficients of polystyrene latex spheres in both Newt...
We present analytical solutions of the hydrodynamic resistance force a spherical particle experience...
Soft matter is a subfield of condensed matter physics including systems, such as polymers, colloidal...
We report an experimental study of rotational and translational diffusion and sedimentation of collo...
The rotational and translational diffusion and sedimentation of colloidal tracer spheres in semidilu...
We introduce the time-resolved phosphorescence anisotropy (TPA) method to study rotational diffusion...
Translational tracer diffusion of spherical macromolecules in crowded suspensions of rodlike colloid...
Long-time self-diffusion and sedimentation of fluorescent tracer spheres in electrostatically stabil...
According to the Stokes-Einstein-Debye (SED) relation, the rotational diffusion coefficient of a col...
We demonstrate that tracer/host size asymmetry and electrostatic interactions strongly affect rotati...
According to the Stokes–Einstein–Debye (SED) relation, the rotational diffusion coefficient of a col...
We studied the rotational and translational diffusion of optically anisotropic liquid crystal partic...
We calculate the short time and the long time diffusion coefficients of a spherical tracer particle ...
Depolarized dynamic light scattering was used to measure the translational and rotational diffusion ...
We present an asymptotic and scaling analysis of the long-time self-diffusivity of a Brownian spheri...
© 2000 American Chemical SocietyThe diffusion coefficients of polystyrene latex spheres in both Newt...
We present analytical solutions of the hydrodynamic resistance force a spherical particle experience...
Soft matter is a subfield of condensed matter physics including systems, such as polymers, colloidal...
We report an experimental study of rotational and translational diffusion and sedimentation of collo...
The rotational and translational diffusion and sedimentation of colloidal tracer spheres in semidilu...
We introduce the time-resolved phosphorescence anisotropy (TPA) method to study rotational diffusion...
Translational tracer diffusion of spherical macromolecules in crowded suspensions of rodlike colloid...
Long-time self-diffusion and sedimentation of fluorescent tracer spheres in electrostatically stabil...
According to the Stokes-Einstein-Debye (SED) relation, the rotational diffusion coefficient of a col...
We demonstrate that tracer/host size asymmetry and electrostatic interactions strongly affect rotati...
According to the Stokes–Einstein–Debye (SED) relation, the rotational diffusion coefficient of a col...
We studied the rotational and translational diffusion of optically anisotropic liquid crystal partic...
We calculate the short time and the long time diffusion coefficients of a spherical tracer particle ...
Depolarized dynamic light scattering was used to measure the translational and rotational diffusion ...
We present an asymptotic and scaling analysis of the long-time self-diffusivity of a Brownian spheri...
© 2000 American Chemical SocietyThe diffusion coefficients of polystyrene latex spheres in both Newt...
We present analytical solutions of the hydrodynamic resistance force a spherical particle experience...
Soft matter is a subfield of condensed matter physics including systems, such as polymers, colloidal...