Electrochemistry of Biosystems
Linking Glucose Oxidation to Luminol-based Electrochemiluminescence using bipolar Electrochemistry
Asymmetric Modification of TiO2 Nanofibers with Gold by Electric-Field-Assisted Photochemistry
Stimuli-responsive microgels for electrochemiluminescence amplification

T. D. Le, L. Zhang, S. Reculusa, G.Vignoles, N. Mano, A. Kuhn, D. Lasseux

ChemElectroChem 6 (2018) 173

This article reports on a procedure to predict the optimal thickness of cylindrical porous electrodes operating a single redox reaction. This is obtained from a macroscopic model for the coupled diff usion-reaction process that is first validated with voltammetry experiments of H2O2/H2O reduction reaction carried out with a series of porous electrodes elaborated in this work. An analytical solution to this model is developed in the steady regime and for electrodes featuring a thickness to mean radius ratio small enough compared to unity. An analytical expression of the optimal electrode thickness is derived corresponding to the crossover value of two asymptotic regimes characterizing the dependence of the volume current density produced by the electrode upon its thickness. The predictive tool of the optimal thickness is general, regardless the porous microsctructure. The case of the electrodes used in the reported experiments illustrates that the optimal thickness is not intrinsic to the microsctructure characterized by the size of the representative volume, its speci c area and eff ective diff usion coefficient. It also depends on the operating conditions reflected in the kinetic number, Ki, and the thickness of the di ffusion layer surrounding the electrode. The dependence of the optimal thickness on these two parameters is quite signicant in a range of very small values of Ki but remains quasi constant beyond a threshold value.

2018 12

Self-coacervation of ampholyte polymer chains as an efficient encapsulation strategy.


Thursday, 02 May 2019
A. Perro, L. Giraud, N. Coudon, S. Shanmugathasan, B. Goudeau, J.-P. Douliez and V. Ravaine Journal of Colloid and Interface Science 2019 548, 275-283. Coacervation is a phase separation process involving two aqueous phases, one solute-phase... Read More...

Kinetics of spontaneous microgels adsorption and stabilization of emulsions produced using microfluidics


Thursday, 02 May 2019
M.-C. Tatry, E. Laurichesse, A. Perro, V. Ravaine and V. Schmitt Journal of Colloid and Interface Science 2019, 548, 1-11. The aim of the paper is to examine the adsorption kinetics of soft microgels and to understand the role off undamental... Read More...

Adsorption of Proteins on Dual Loaded Silica Nanocapsules


Thursday, 02 May 2019
S. Ramalingam, G. Le Bourdon, E. Pouget, A. Scalabre, J. Raghava Rao and A. Perro J. Phys. Chem B 2019, 123 (7), 1708-1717. The design of nanocarriers containing hydrophobic and hydrophilic compounds represents a powerful tool for cocktail... Read More...