ELECTROCHEMICAL TRANSDUCERS BASED ON GRAPHENE MATERIALS

The use of sensors in the field of clinical analysis has encouraged the development of new technologies and more suitable methodologies. One of the most promising techniques is based on the use of screen printed electrochemical sensors (electrochemical transducers) which incorpore graphene-based materials as sensing element. Screen-printing technology allows mass production of low cost thick film electrodes with good electrochemical properties The graphene materials using as sensing element have been obtained from graphene oxides prepared from coke and reduced, in the working electrode, via electrochemical process. The coke,which has not been subjected to graphitization treatment, is prepared using pitches of anthraceneoil as raw material1. The use of these raw materials derives in high purity, free from impurities graphenes. Besides, allows the modification of the crystalline structure of the materials obtained.The control of the crystalline structures, together with the reduction process selected, results insensing elements with different electrochemical behaviours. This work is supported by Spanish agency IDEPA and European Regional Development Fund programs, aimed at the implementation of I+D+i tractor projects in the Principality of Asturias