Development of electrochemical nano-biosensors with distributed metal particles
PublisherAffiliation: Faculty of Electrical Engineering and Applied Informatics, Technical University, Iasi, Romania
Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprus
Correspondence Address: Faculty of Electrical Engineering and Applied Informatics, Technical University, Iasi, Romania
Source19th IMEKO TC4 Symposium - Measurements of Electrical Quantities 2013 and 17th International Workshop on ADC and DAC Modelling and Testing
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A new concept of hybrid nano-biosensors was developed based on well-defined methacrylic diblock copolymers and metal nanoparticles (Au and Pd). The nano-composite systems were used as surfactant for modified carbon electrodes. The electrochemical characterization (Potentiostat/Galvanostat method) was performed by using reference redox molecules in order to test the sensors sensitivity and reproducibility at different concentrations of dopamine in acid medium (0.1 M HCl). It was shown that the functionalization of carbon electrodes with well-defined electrically active diblock copolymers and metal nanoparticles offer superior metrological performance for neurotransmitters analyze, comparing to conventional electrodes.