Voltammetry of proteins at liquid–liquid interfaces

Freestanding Ultrathin Nanoparticle Membranes Assembled at Transient LiquidLiquid Interfaces

(please note that in this context, we defi ne as membrane any freestanding thin layer, regardless of selective mass-transport properties). These approaches rely on the possibility of NPs to adsorb and pack into a dense network at an interface. This can occur if the free energy of the nanoparticles bound at the interface is lower than that of the NPs in either of the two phases. [ 38–40 ] The su...

Behaviour of proteins at interfaces.

The adsorption and conformational changes of three plasma proteins, (bovine) serum albumin, .y-globulin and fibrinogen, on several (bio)polymer surfaces are reported. A theory is developed which invokes reversible adsorption of the proteins in the initial stages and a time dependent conformational change of adsorbed protein leading to essentially irreversible long-term adsorption. In each case ...

Cyclic voltammetry at micropipet electrodes for the study of ion-transfer kinetics at liquid/liquid interfaces.

Cyclic voltammetry at micropipet electrodes is applied to the kinetic study of ion transfer at liquid/liquid interfaces. Simple and facilitated transfer of an ion that is initially present outside a tapered pipet was simulated by the finite element method, enabling complete analysis of the resulting transient cyclic voltammogram (CV) with a sigmoidal forward wave followed by a peak-shaped rever...

Adsorption of Proteins at Solid-Liquid Interfaces

This paper concisely rev iews the general principles underlying protein adsorption from aqueous so lution onto a solid surface. The discussion includes the various stages of the adsorption process, i. e., transport o f the protein molecules towards the su rface, the absorbed amount under equilibrium conditions, desorption andreadsorption. Among the interactions that determine the overall protei...

Water at interfaces: from proteins to devices