Encontrados 3 documentos, a visualizar página 1 de 1
Preparation and characterisation of poly(3,4-ethylenedioxythiophene) and poly(3...
Gonçalves, A. Ricardo; Ghica, M. Emilia; Brett, Christopher M. A.Poly(3,4-ethylenedioxythiophene) (PEDOT) films have been prepared for the first time on carbon-film electrodes (CFE) in aqueous solution using electropolymerisation by potential cycling, potentiostatically and galavanostatically. Characterisation of the modified electrodes was done by cyclic voltammetry and electrochemical impedance spectroscopy and the stability of the polymer films was probed. The coated elec...
Enzyme immobilisation on electroactive nanostructured membranes (ENM): Optimise...
Crespilho, Frank N.; Ghica, M. Emilia; Gouveia-Caridade, Carla; Oliveira Jr., Osvaldo N.; Brett, Christopher M.A.Electroactive nanostructured membranes have been produced by the layer-by-layer (LbL) technique, and used to make electrochemical enzyme biosensors for glucose by modification with cobalt hexacyanoferrate redox mediator and immobilisation of glucose oxidase enzyme. Indium tin oxide (ITO) glass electrodes were modified with up to three bilayers of polyamidoamine (PAMAM) dendrimers containing gold nanoparticles a...
Electroactive Nanostructured Membranes (ENM): Synthesis and Electrochemical Pro...
Crespilho, Frank N.; Ghica, M. Emilia; Zucolotto, Valtencir; Nart, Francisco C.; Oliveira Jr., Osvaldo N.; Brett, Christopher M. A.The layer-by-layer (LbL) self-assembly process has become an important tool in the fabrication of nanostructured devices for electrochemical applications, especially in those cases where control at the molecular level is required. In this paper we present a system based on electroactive nanostructured membranes (ENM) with ITO-PVS/PAMAM-Au LbL electrodes, in which a redox mediator (Me) is electrodeposited around...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||