Abstract Layered silicates (LS, clays) are a composite group of minerals whose industrial interest and technological applications progressively expanding, spanning from catalysis to biomedicine. However, the compatibility LS with biological systems is not clear, mechanistic data about biophysicochemical interactions at interface biomembranes scarce. Here, cell membrane damage, assessed using re...

The physisorption of negatively charged single-stranded DNA (ssDNA) of different lengths onto the surface of anion-exchange membranes is sensitively shown to alter the anion flux through the membrane. At low surface concentrations, the physisorbed DNAs act to suppress an electroconvection vortex instability that drives the anion flux into the membrane and hence reduce the overlimiting current t...

The substrate specificity of the avian renal organic cation exchanger was examined in isolated renal brush-border membrane vesicles. Endobiotic and xenobiotic organic cations (OCs) were tested at a concentration of 100 microM for cis-inhibition of 14C-tetraethylammonium (TEA)/H+ exchange and at 1 mM for trans-stimulation of 14C-TEA efflux. The xenobiotic cations amiloride, cimetidine, mepiperph...

The effective ion-exchange capacities of ion-exchange materials were determined by measuring the change in the equilibrium conductivity of a column packed with analyte. The developed instrumental method can provide effective ion-exchange capacities for both cation and anion exchangers with simple operations. The cation-exchange capacity of a weak-acid cation-exchange resin (TSKgel SuperIC-Catio...

Understanding multi-component transport behavior in membranes with varied internal structures and functionalities is critical for the rational design of that will be challenged separation of, or come contact with, solutions. One interesting application ion exchange CO2 reduction cells as these interact multiple products (e.g. methanol acetate) whose permeation must controlled, they readily oxid...