3.1.4 New Electrochemical (Bio)sensing Strategies Based on the Use of Dispersed Carbon Nanotubes

G. A. Rivas, N. F. Ferreyra, M. C. Rodriguez, M. D. Rubianes, M. L. Pedano, G. L. Luque, F. A. Gutierrez, P. R. Dalmasso, A. Gasnier, E. N. Primo, Y. Jalit, F. N. Comba & M. V. Bracamonte
Multi-walled carbon nanotubes (MWCNTs) dispersed in different polyelectrolytes were used to develop electrochemical (bio)sensors by drop-coating of glassy carbon electrodes (GCEs). MWCNTs dispersed in polyhistidine were used for the quantification of uric acid or dopamine in the presence of large excess of ascorbic acid, and as platform to build glucose biosensors by self-assembling of glucose oxidase (GOx). The strong interaction of calf thymus-double stranded DNA (dsDNA) with the walls of bamboo-MWCNTs allowed us to obtain...