Biological molecules, nanomaterials and electrochemical transducers...a successful blend for the development of new (bio)sensing strategies

G. A. RIVAS, N. F. FERREYRA, M. C. RODRÍGUEZ, M. D. RUBIANES, M. L PEDANO, G. L. LUQUE, F. GUTIERREZ, A. GASNIER, P. DALMASSO, E. PRIMO, Y. JALIT, F. COMBA, V. BRACAMONTE, M. EGUILAZ RUBIO

Congreso; 64th Meeting of the International Society of Electrochemistry; 2013

This lecture will be focused on the presentation of new avenues for the development of electroanalytical platforms devoted to the sensitive and selective quantification of biomarkers based on the use of nanomaterials and biomolecules. Special attention will be given to the critical selection of dispersing agents for different carbon nanotubes, not only to disperse them but also, an even more important, to give them biorecognition, preconcentration, or electrical properties that make possible the highly sensitive and selective sensing of important bioanalytes. The advantages of the incorporation of graphene in the electrochemical sensors for the quantification of biomarkers will be also discussed. The proposed (bio)sensors demonstrate that the judicious and intimate coupling of a suitable (bio)molecule and an electrochemical transducer efficiently modified with nanomaterials makes possible the highly successful conversion of the selective (bio)recognition event into a useful electrical signal, and opens the doors to the development of highly sensitive and selective bioanalytical devices.