A novel wireless glucose sensor employing direct electron transfer principle based enzyme fuel cell.
In this paper we present a novel wireless glucose biosensing system employing direct electron transfer principle based enzyme fuel cell. Using the glucose dehydrogenase complex, which is composed of a catalytic subunit containing FAD, the cytochrome c subunit that harbors heme c as the electron transfer subunit, and chaperone-like subunit, a direct electron transfer-type glucose enzyme fuel cell was constructed. The enzyme glucose fuel cell generated electric power, and the open-circuit voltage showed glucose concentration dependence, which suggests potential applications for this glucose-sensing system. We constructed a miniaturized "all-in-one" glucose enzyme fuel cell, which represents a compartmentless fuel that is based on the direct electron transfer principle. This involved the combination of a wireless transmitter system and a simple and miniaturized continuous glucose monitoring system, which operated continuously for about 3 days with stable response. This is the first demonstration of an enzyme-based direct electron transfer-type enzyme fuel cell and fuel cell-type glucose sensor which can be utilized as a subcutaneously implantable system for continuous glucose monitoring.
Kakehi
Noriko
N
Department of Biotechnology, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16 Nakamachi, Koganei, Tokyo 184-8588, Japan.
Yamazaki
Tomohiko
T
Tsugawa
Wakako
W
Sode
Koji
K
D000818:Animals; D015374:Biosensing Techniques / Q000295:instrumentation*; D016956:Burkholderia cepacia / Q000201:enzymology; D002417:Cattle; D005947:Glucose / Q000032:analysis*; D042843:Glucose 1-Dehydrogenase
D042843:Glucose 1-Dehydrogenase; D005947:Glucose