Sahere Khazaei - Thin Layer and Nanotechnology Laboratory, Department of Chemical Technology, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535-111, Tehran. Iran
Sayed Ahmad Mozaffari - Thin Layer and Nanotechnology Laboratory, Department of Chemical Technology, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535-111, Tehran. Iran

Electrochemical deposition as a reliable, cost-effective, mild physicochemical method has been an important issue for preparation of nanostructured hybrid metal oxides [1]. In this study,electrochemical deposition method was chosen for ZnO thin film deposition onto fluorinated thinoxide (FTO) layer as a biosensor transducer [2,3]. Surface characterization of the nanostructured ZnO film by scanning electron microscopy (SEM) exhibited porous surface areas as an excellent platform for enzyme immobilization. Monitoring of biosensor fabrication was performed usingcyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. The results were explained the ZnO metal oxide as an efficient transducer for electrochemical biosensing.

Electrochemical deposition, ZnO–polymer nanostructured hybrid film, Polyvinyl alcohol, Impedimetric sensing