Amperometric enzyme sensor for glucose based on graphite paste-modified electrodes

Applied Biochemistry and Biotechnology
P C PandeyV Pandey


Amperometric enzyme electrode for glucose is described based on the incorporation of glucose oxidase (GOD) into graphite paste modified with tetracyanoquinodimethane (TCNQ). The incorporated enzyme exhibits high activity and long-term stability over the earlier TCNQ-based glucose sensor (1). The sensor provides a linear response to glucose over a wide concentration range. The response time of the sensor is 15-50 sec, and the detection limit is 0.5 mM. Stable response to the substrate was obtained during a period of 35 d. Application of the sensor in the plasma analysis is reported.


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Feb 14, 2004·Letters in Applied Microbiology·V PulciF Federici
Apr 9, 2004·Journal of Biomaterials Applications·Sibel SungurYasemin Numanoğlu
Feb 14, 2009·Journal of Experimental Botany·Filipa QueirósFernanda Fidalgo

Related Concepts

Blood Glucose
Glucose Oxidase
Biosensing Techniques

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