Abstract
A novel composite material for the encapsulation of redox enzymes was prepared. Reduced graphene oxide film with adsorbed phenothiazone was used as a highly efficient composite for electron transfer between flavin adenine dinucleotide (FAD)-dependent glucose dehydrogenase and electrodes. Measured redox potential for glucose oxidation was lower than 0 V vs Ag/AgCl electrode. The fabricated biosensor showed high sensitivity of 42 mA M-1 cm-2, a linear range of glucose detection of 0.5-12 mM, and good reproducibility and stability as well as high selectivity for different interfering compounds. In a semibiofuel cell configuration, the hybrid film generated high power output of 345 μW cm-2. These results demonstrate a promising potential for this composition in various bioelectronic applications.
Original language | American English |
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Pages (from-to) | 9567-9571 |
Number of pages | 5 |
Journal | Analytical Chemistry |
Volume | 87 |
Issue number | 19 |
DOIs | |
State | Published - 3 Sep 2015 |
Bibliographical note
Publisher Copyright:© 2015 American Chemical Society.