New Materials for Electrochemical Sensing: Glucose Biosensors Based on Rigid Carbon-Polymer Biocomosites

Francisco Céspedes¹ and Salvador Alegrer<sup>2

1</sup>Grup de Sensors i Biosensors, Escola Universitària Politàcnica del Medi Ambient, 08100 Monet del Vallès,
²Departament de Quimica, Universitat Autònoma de Barcelona, 08193 Bellaterra, Catalonia, Spain

Article history:
Received  July 31, 1996 
Accepted  August 14, 1996

Key words:
antioxidants, betacyanins, betaxanthins, food colourants, pigments, reactors, red beet

Summary:
The development of composites based on conductive phases dispersed in polymeric matrices has permitted important advances in analytical electrochemistry particularly in sensor devices. The present work reviews the use of biocomposite materials in the construction of glucose amperometric biosensors. These composites are bulk-modified biologically (adding enzymes and cofactors) and chemically (blending mediators and catalysts). The review covers all references found in literature up to 1996.