Surface charge properties have a significant influence on membrane retention and fouling performance. As a key parameter describing the surface charge of membranes used in aqueous applications, zeta potential measurements on membranes of various types have attracted great attention. During the zeta potential characterization of a series of ion-conductive sulfonated poly(sulfone) membranes, it was found that the measured streaming current varied with the thickness of the sample, which is not predicted by the classical Smoluchowski equation. Moreover, for higher conductivity membranes with an increased concentration of sulfonate groups, the zeta potential tended toward zero. It was determined that the influence of membrane bulk conductance on the measured streaming current must be taken into account in order to correctly interpret the streaming current data for ion-conductive polymers and understand the relationship between membrane chemical composition and zeta potential. Extrapolating the measured streaming current to a membrane thickness of zero has proven to be a feasible method of eliminating the error associated with measuring the zeta potential on ion conductive polymer membranes. A linear resistance model is proposed to account for the observed streaming currents where the electrolyte channel is in parallel with the ion-conductive membranes.

Removal of the Impurity in Bovine Serum Albumin and Its Effect on Zinc Binding

Zeta Potential of Ion-Conductive Membranes by Streaming Current Measurements

Systematic enterprise that builds and organizes knowledge

https://science.sciencemag.org/content/sci/118/3058/167.2.full.pdf

A rapid method for the determination of citric acid.

Preparation and Properties of Serum and Plasma Proteins. XXXII. The Interaction of Human Serum Albumin with Zinc Ions1a,b,c,d,

The Effect of pH on the Combination of Serum Albumin with Metals1

https://science.sciencemag.org/content/sci/116/3025/691.full.pdf

Removal of the Impurity in Bovine Serum Albumin and Its Effect on Zinc Binding

Citations

Zeta Potential of Ion-Conductive Membranes by Streaming Current Measurements

References

A rapid method for the determination of citric acid.

Preparation and Properties of Serum and Plasma Proteins. XXXII. The Interaction of Human Serum Albumin with Zinc Ions1a,b,c,d,

The Effect of pH on the Combination of Serum Albumin with Metals1

Concerning the presence of citrate in commercial crystallized bovine serum albumin

Related Papers (5)

The structure of bovine serum albumin at low pH.

The Interaction of Copper(II) with Bovine Serum Albumin1

Crystal Structure of Bovine Serum Albumin

A stoichiometric analysis of bovine serum albumin-gossypol interactions: a fluorescence quenching study.

Further observations on the N-terminal amino acids of bovine serum albumin.