Adsorption–desorption mechanism of a cationic polyelectrolyte based on dimethylaminoethyl polymethacrylates at the water/1,2-dichloroethane interface

Interaction of chitosan and self‐assembled distearoylphosphatidic acid molecules at liquid/liquid and air/water interfaces. Effect of temperature

“…Electrochemical methods applied to an interface formed by two immiscible electrolyte solutions (aqueous phase/organic phase) modified by different films have been used in the last decades with the aim of developing new biomimetic membrane models. Therefore, the adsorption of lipid monolayer, proteins, or polyelectrolyte at liquid‐liquid interfaces has been studied by cyclic voltammetry, electrochemical impedance spectroscopy, and surface tension measurements. An area of special interest has been the study of the interaction between phospholipid monolayers and different cations, or peptides, as well as between polyelectrolytes with different ions and DNA .…”

Decorating soft electrified interfaces: From molecular assemblies to nano-objects

“…Interfacial behaviour of these species gives very characteristic voltammetric fingerprints: (i) peak to peak separation deviates from 59/z mV; (ii) reverse peaks are terminated by the abrupt drop in current; (iii) charge transfer peak current at macroscopic liquidliquid interface do not follow ∝ √ ( being scan rate) dependency and (iv) shift of the peak position towards higher ∆ for increasing concentration of interfacially active speciesindicating higher resistance to the charge transfer reaction. These indications were observed for electrochemically driven interfacial adsorption of few class of macromolecular species including polyelectrolytes [30][31][32][33][34][35][36][37][38][39], polyamidoamide [40][41][42][43], polypropylenimine [44] and poly-L-lysine [45] dendrimers among others [46,47] peptides [48,49] and proteins [28,[50][51][52][53]. The interfacial adsorption of biological macromolecules brings exciting applications towards the field which are still not sufficiently studied.…”

Detection of Perfluorooctane Sulfonate by Ion-Transfer Stripping Voltammetry at an Array of Microinterfaces Between Two Immiscible Electrolyte Solutions

“…These limitations can be overcome by miniaturization of the ITIES to microscale (𝜇𝜇ITIES), 29,30,31 which enhances mass transport to the interface and improves the detection capabilities, while the mechanical stability can be improved by the use of a porous membrane to support the ITIES. 32,33 There are a number of reports of the electrochemical characterisation and detection of pollutants, 34 proteins, 35,36,37 ionizable drugs, 38,39,40 macromolecules, 41,42 and inorganic species 43,44 at the 𝜇𝜇ITIES.…”