The Physiology of Vasodilatation

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68237/2/10.1177_000331976101200602.pd

POLYPYRROLE ELECTRODES, CHARGE TRANSFER TO AQUEOUS AND SOLID POLYMER ELECTROLYTES

Nous avons étudié l'interface entre le polypyrrole conducteur et des polymères électrolytes solides ou aqueux. Le polypyrrole est poreux pour le solvant et les ions de l'électrolyte mais pas pour des polymères électrolytes solides. Les deux types d'interfaces montrent sans ambiguité que la porosité, et donc la surface spécifique réelle, est responsable du rapide taux de transfert de charge vers les ions en solution qui est observé.We have studied interfaces between conducting polypyrrole and aqueous and solid polymer electrolytes. Polypyrrole is porous to solvent and electrolyte ions but not to solid polymer electrolytes. Contrasting the two interfaces shows unambiguously that the porosity, and consequently large actual surface area, is responsible for the observed rapid rate of charge transfer to ionic species in solution

Resistance‚ Capacitance and Electrode Kinetic Effects in Fourier Transformed Large Amplitude Sinusoidal Voltammetry: The Emergence of Powerful and Intuitively Obvious Tools for Recognition of Patterns of Behaviour

Large-amplitude sinusoidal ac voltammetric techniques, when analyzed in the frequency domain using the Fourier transform-inverse Fourier transform sequence, produce the expected dc and fundamental harmonic ac responses in addition to very substantial second, third, and higher ac harmonics that arise from the presence of significant nonlinearity. A full numerical simulation of the process, Red reversi