NDLI: An enzymatic glucose biofuel cell based on Au nano-electrode array

Content Provider	IEEE Xplore Digital Library
Author	Kulkarni, T. Gupta, D. Slaughter, G.
Copyright Year	2015
Description	Author affiliation: Dept. of Comput. Sci. & Electr. Eng., Univ. of Maryland Baltimore County, Baltimore, MD, USA (Kulkarni, T.; Gupta, D.; Slaughter, G.)
Abstract	Herein a glucose biofuel cell capable of producing micro-watts power has been presented. The bioanode and the biocathode were fabricated using glucose oxidase and oxygen reducing laccase, respectively immobilized on a 4 × 4 Au nanotip pyramidal electrode array having a tip diameter of ~62 nm with an electroactive surface area of 0.04 $cm^{2}.$ The power generating capability of the glucose biofuel cell was characterized in the presence of 5 mM, 10 mM and 20 mM glucose solution (pH 7) at 37° C to mimic the physiologic conditions. An open circuit voltage of 562.1 mV with a maximum power density of 112.21 μW $cm^{-2}$ at a cell voltage of 270.4 mV was delivered by the glucose biofuel cell operating in 20 mM glucose. The use for the 4 × 4 Au nanotip pyramidal electrode array provides a novel approach to improve the electroactive surface area for enzyme immobilization, in addition to enabling the electrochemical energy generation via direct electron transfer. The as-fabricated glucose biofuel cell has a great potential to be employed in powering low-power implantable bioelectronic devices.
Sponsorship	IEEE
Starting Page	1
Ending Page	4
File Size	1046141
Page Count	4
File Format	PDF
e-ISBN	9781479982035
DOI	10.1109/ICSENS.2015.7370101
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-01
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sugar Electrodes Biofuels Gold Arrays Biochemistry Substrates nanotip pyramidal electrode array biofuel cell buckypaper
Content Type	Text
Resource Type	Article

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