Influence of cationic and anionic additives on the electrical properties of ionophore-based ion-selective membranes
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We report about the development of a planar support for biological samples. The aim is to combine AFM and patch-clamp measurements, in order to perform simultaneous measurements of topography and electrical properties of biological membranes. Sub-micromete ...
In order to predict metal bioavailability by microorganisms in natural waters, analytical speciation techniques such as the permeation liquid membrane (PLM) are required. A planar sheet PLM has been characterized by measuring Pb fluxes in the absence and p ...
Lipophilicity of compounds with therapeutic interest represents one of the most important physicochemical parameters in predicting and interpreting transport processes across biological barriers. This property is commonly measured as a drug | membrane part ...
From electrochemical measurements at the interface of two immiscible electrolytes, the current at controlled potential is usually a linear function of the ion concentration in the aqueous phase. Surprisingly, a linear relationship between the current and t ...
The influence of external currents on the potential response of polymeric membrane ion-selective electrodes (ISEs) is analyzed theoretically. The treatment is based on the well-established potential model of ISE membranes, extended by contributions from cu ...
Methods are provided for producing microcapsules based on two oppositely charged polymers, in particular to optimise the permeability and mechanical stability of microcapsules. The capsules are formed by introducing liquid droplets from an aqueous solution ...
The aim of this thesis work is to study the spin-dependent transport in multiwalled carbon nanotubes (MWNT). To do so, the electrical resistance of MWNT contacted between ferromagnetic electrodes has been measured, as a function of the contacts magnetic co ...
Changes in sample concentrations of CO2 or organic acids cause potential instabilities when polymer membranes are directly applied to the surface of ion-selective field-effect transistors (ISFETs). Currently used designs avoid this well-documented effect b ...