Biomedical subjects

Dzina Kleshchanok

Publications and source records attributed to Dzina Kleshchanok.

2 recordsLinked to original sources

PubMed2006

Depletion interaction mediated by a polydisperse polymer studied with total internal reflection microscopy.

Total internal reflection microscopy (TIRM) was applied to measure depletion forces between a charged colloidal sphere and a charged solid wall induced by dextran, a nonionic nonadsorbing polydisperse polysaccharide. The polymer size polydispersity is shown to greatly influence the depletion potential. Using the theory for the depletion interaction due to ideal polydisperse polymer chains, we could accurately describe the experimental data with a single adjustable parameter.

Journal Article↗

PubMed2005

Interactions and two-phase coexistence in nonionic micellar solutions as determined by static light scattering.

We suggest semi-phenomenological approaches for the pair interaction potential in aqueous C(m)E(n) solutions. These expressions are non-linear least squares fitted to static light scattering data from solutions of C(m)E4 and C(m)E8 surfactants in the long wavelength limit. From the resulting interaction parameters we calculate the location of the liquid/liquid two phase coexistence curves, which are in very good agreement with experimental data reported by others.

Journal Article↗