15th International Meeting on Chemical Sensors (IMCS)

GUSTAVO A. RIVAS; NANCY F. FERREYRA; MARCELA C. RODRIGUEZ; MARÍA D. RUBIANES; MARÍA L. PEDANO; FABIANA A. GUTIERREZ; PABLO R. DALMASSO; AURELIÉN GASSNIER; EMILIANO N. PRIMO; GUILLERMINA L. LUQUE; MARCOS EGUILAZ RUBIO

Buenos Aires

Encuentro; 15th International Meeting on Chemical Sensors (IMCS); 2014

15th International Meeting on Chemical Sensors (IMCS)

Carbon nanotubes (CNT) dispersed in different polymers were used to develop electrochemical (bio)sensors bydrop-coating at glassy carbon electrodes (GCE). GCEs modified with CNT-polyhistidine were used for the sensitiveand selective quantification of Cu(II). GCEs modified with CNT-dsDNA were used in two directions, as a platform fordetecting promethazine through the intercalation of the drug, and as a platform to build supramolecular architecturesfor glucose biosensing. The simultaneous dispersion of copper microparticles and CNT in polyethylenimine madepossible the development of stable and robust electrochemical sensors for the quantification of aminoacids, albuminand glucose through the complex formation. Graphene composite electrodes were successfully used for thequantification of NADH and for the construction of enzymatic electrodes for phenols and ethanol.