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Development and characterization of a new conducting carbon composite electrode
Barsan, Madalina M.; Pinto, Edilson M.; Florescu, Monica; Brett, Christopher M. A.A new conducting composite flexible material prepared from cellulose acetate (CA) polymer and graphite has been developed and used for the fabrication of electrodes, which were then characterized by cyclic voltammetry and electrochemical impedance spectroscopy. Scanning electron microscopy (SEM) was used to provide information concerning the morphology of the composite electrode surface. The potential window, b...
Development and Application of Oxysilane Sol-Gel Electrochemical Glucose Biosen...
Florescu, Monica; Barsan, Madalina; Pauliukaite, Rasa; Brett, Christopher M. A.The evaluation and characterization of a new glucose oxidase (GOx) electrochemical enzyme biosensors on a carbon film electrode support and using two types of sol-gel precursor mixture for enzyme immobilization was carried out in order to be employed as a short-time-use or as a disposable sensor. Carbon film electrodes were modified with films of CoHCF mediator by potential cycling. The sol-gel was prepared usi...
Development and evaluation of electrochemical glucose enzyme biosensors based o...
Florescu, Monica; Brett, Christopher M. A.Electrochemical glucose enzyme biosensors have been prepared on carbon film electrodes made from carbon film electrical resistors. Evaluation and characterisation of these electrodes in phosphate buffer saline solution has been carried out with and without pretreatment by cycling in perchloric acid or at fixed applied potential. Both pretreatments led to a reduction in the carbon surface oxidation peak and enab...
Characterization of cobalt- and copper hexacyanoferrate-modified carbon film el...
Pauliukaite, Rasa; Florescu, Monica; Brett, Christopher M. A.Cobalt and copper hexacyanoferrate films (CoHCF and CuHCF) were formed at carbon film electrodes by three different one-step processes: cycling the applied potential, application of a constant current, and chemically. All hexacyanoferrate films obtained were characterized electrochemically by cyclic voltammetry and electrochemical impedance spectroscopy. To evaluate their possible use as redox mediators for bio...
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