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Nanohybrid materials as transducer surfaces for electrochemical sensing applications
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Orientador(es)
Resumo(s)
A nanohybrid electrochemical transducer surface was developed using carbon and gold nanomaterials. The strategy
relayed on casting multiwalled carbon nanotubes or carbon nanofibers onto a screen-printed carbon electrode surface,
followed by in situ generation of gold nanoparticles by electrochemical deposition of ionic gold, in a reproducible
manner. These transducers, so fabricated, were characterized using both electrochemical and microscopic techniques.
Biofunctionality was evaluated using the streptavidin-biotin interaction system as the biological reaction
model. These platforms allow to achieve low detection limits (in the order of pmoles), are reproducible and stable
at least for a month after their preparation, being a perfect candidate to be used as transducer of different sensor
devices.
Descrição
Palavras-chave
Carbon nanofibers Carbon nanotubes Electrochemical transducer surfaces Gold nanoparticles Hybrid materials
Contexto Educativo
Citação
Editora
Wiley-VCH Verlag GmbH&Co.