TY  - JOUR
AU  - Yuqing, Miao 
AU  - Jianrong, Chen 
AU  - Xiaohua, Wu 
PY  - 2006
TI  - Construction of a Glucose Biosensor by Immobilizing Glucose Oxidase within a Poly(o-phenylenediamine) Covered Screen-printed Electrode
JF  - OnLine Journal of Biological Sciences
VL  - 6
IS  - 1
DO  - 10.3844/ojbsci.2006.18.22
UR  - https://thescipub.com/abstract/ojbsci.2006.18.22
AB  - The glucose biosensors were prepared by the electropolymerization of the non-conductive polymer, Poly(o-phenylenediamine), onto a planar screen-printed electrode. A fabrication procedure was performed to decrease the waste of expensive enzyme. The amperometric glucose response was measured by the potensiostating of the prepared glucose biosensors at a potential of 0.3 V with ferrocene as mediator. Results show that the obtained biosensors have a linear range up to 25 mM glucose, fast response time (100s) and high sensitivities (16.6 nA/mM). Also, the effects of applied potential and sweeping number of Cyclic voltammograms for electropolymerization were systematically investigated and optimal values were recorded.