INFIQC   05475
INSTITUTO DE INVESTIGACIONES EN FISICO- QUIMICA DE CORDOBA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Analytical applications of electrochemical sensors based on carbon nanostructures
Autor/es:
G. A. RIVAS; N. F. FERREYRA; M. C. RODRÍGUEZ; M. D. RUBIANES; , M. L. PEDANO; F. A. GUTIERREZ; P. DALMASSO; A. GASNIER; E. PRIMO; G. LUQUE; M. EGUILAZ-RUBIO
Reunión:
Congreso; 15th International Meeting on Chemical Sensors; 2014
Institución organizadora:
15th International Meeting on Chemical Sensors
Resumen:
Summary Carbon nanotubes (CNT) dispersed in different polymers were used to develop electrochemical (bio)sensors by drop-coating at glassy carbon electrodes (GCE). GCEs modified with CNT-polyhistidine were used for the sensitive and selective quantification of Cu(II). GCEs modified with CNT-dsDNA were used in two directions, as a platform for detecting promethazine through the intercalation of the drug, and as a platform to build supramolecular architectures for glucose biosensing. The simultaneous dispersion of copper microparticles and CNT in polyethylenimine made possible the development of stable and robust electrochemical sensors for the quantification of aminoacids, albumin and glucose through the complex formation. Graphene composite electrodes were successfully used for the quantification of NADH and for the construction of enzymatic electrodes for phenols and ethanol. Carbon nanotubes (CNTs) and graphene (Gr) have received enormous attention in the last years for the development of electrochemical (bio)sensors due to their outstanding mechanical, electronic and structural properties [1-2]. Here, we proposed two types of electrochemical (bio)sensors based on carbon nanostructures, one of them obtained by modification of glassy carbon electrodes (GCE) with CNT dispersed in different polymers and the other one prepared by dispersing graphene in mineral oil.