Abstract
One of the major areas of study associated with enzyme fuel cells (EFCs) has been identification of redox enzymes with high electron transfer rates that lead to a high power output. The effects of a method of enzyme immobilization by actively turning over glucose on the electrical properties of a fuel cell were evaluated under ambient conditions in attempt to increase the power of an EFC modified with DNA-wrapped single walled carbon nanotubes (SWNTs). The anode cyclic voltammetry (CV cycle) electrical properties increased as a result of glucose oxidase (GOD) immobilization by actively turning over glucose. Furthermore, an EFC that employed DNA-wrapped SWNTs and GOD immobilization in conjunction with protection of the active site increased the stability of the cell, which enabled maintenance of a high level of power production (ca. 730-760μWcm-2) for 1 week.
| Original language | English |
|---|---|
| Pages (from-to) | 2685-2688 |
| Number of pages | 4 |
| Journal | Biosensors and Bioelectronics |
| Volume | 26 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2011 Jan 15 |
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Keywords
- Carbon nanotubes
- Enzyme activity
- Enzyme immobilization
- Enzyme stability
- Enzyme-based biofuel cell
- Glucose oxidase
ASJC Scopus subject areas
- Biophysics
- Biotechnology
- Electrochemistry
- Biomedical Engineering
Cite this
Improvement of electrical properties via glucose oxidase-immobilization by actively turning over glucose for an enzyme-based biofuel cell modified with DNA-wrapped single walled nanotubes. / Lee, Jin Young; Shin, Hyun Yong; Kang, Seong Woo; Park, Chulhwan; Kim, Seung Wook.
In: Biosensors and Bioelectronics, Vol. 26, No. 5, 15.01.2011, p. 2685-2688.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Improvement of electrical properties via glucose oxidase-immobilization by actively turning over glucose for an enzyme-based biofuel cell modified with DNA-wrapped single walled nanotubes
AU - Lee, Jin Young
AU - Shin, Hyun Yong
AU - Kang, Seong Woo
AU - Park, Chulhwan
AU - Kim, Seung Wook
PY - 2011/1/15
Y1 - 2011/1/15
N2 - One of the major areas of study associated with enzyme fuel cells (EFCs) has been identification of redox enzymes with high electron transfer rates that lead to a high power output. The effects of a method of enzyme immobilization by actively turning over glucose on the electrical properties of a fuel cell were evaluated under ambient conditions in attempt to increase the power of an EFC modified with DNA-wrapped single walled carbon nanotubes (SWNTs). The anode cyclic voltammetry (CV cycle) electrical properties increased as a result of glucose oxidase (GOD) immobilization by actively turning over glucose. Furthermore, an EFC that employed DNA-wrapped SWNTs and GOD immobilization in conjunction with protection of the active site increased the stability of the cell, which enabled maintenance of a high level of power production (ca. 730-760μWcm-2) for 1 week.
AB - One of the major areas of study associated with enzyme fuel cells (EFCs) has been identification of redox enzymes with high electron transfer rates that lead to a high power output. The effects of a method of enzyme immobilization by actively turning over glucose on the electrical properties of a fuel cell were evaluated under ambient conditions in attempt to increase the power of an EFC modified with DNA-wrapped single walled carbon nanotubes (SWNTs). The anode cyclic voltammetry (CV cycle) electrical properties increased as a result of glucose oxidase (GOD) immobilization by actively turning over glucose. Furthermore, an EFC that employed DNA-wrapped SWNTs and GOD immobilization in conjunction with protection of the active site increased the stability of the cell, which enabled maintenance of a high level of power production (ca. 730-760μWcm-2) for 1 week.
KW - Carbon nanotubes
KW - Enzyme activity
KW - Enzyme immobilization
KW - Enzyme stability
KW - Enzyme-based biofuel cell
KW - Glucose oxidase
UR - http://www.scopus.com/inward/record.url?scp=78650604126&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=78650604126&partnerID=8YFLogxK
U2 - 10.1016/j.bios.2010.07.020
DO - 10.1016/j.bios.2010.07.020
M3 - Article
C2 - 20696563
AN - SCOPUS:78650604126
VL - 26
SP - 2685
EP - 2688
JO - Biosensors
JF - Biosensors
SN - 0956-5663
IS - 5
ER -