| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 봄 (04/24 ~ 04/26, 광주 김대중컨벤션센터) |
| 권호 |
19권 1호, p.784 |
| 발표분야 |
재료 |
| 제목 |
Needle-structured ZnO NRs on Ag electrode for Highly Efficient Glucose Sensor |
| 초록 |
Needle-structured ZnO nanorods (n-ZNRs) were grown directly on Si/Ag electrode in solution at 90 oC and used to fabricate an enzyme-based glucose biosensor through immobilizing glucose oxidase (GOx). The present n-ZNRs based biosensor exhibits a reproducible sensitivity of 81.71 µA/mMcm2 at an applied potential of +0.58 V with a detection limit of 3 µM (S/N = 3), wide linear range 0.01-31.5 mM, response time ~2 s and the Michaelis-Menten constant ( KMapp) is calculated to be 0.0137 mM. Moreover, the anti-interference ability and long-term stability of the biosensor were also assessed. These results are well-consistent with the fact that more GOx is immobilized on n-ZNRs, which have higher specific surface area and provide direct electron communication path between the enzyme’s active sites and the electrode. |
| 저자 |
Ahmad Rafiq, Nirmalya Tripathy, 김진환, 한윤봉
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| 소속 |
전북대 |
| 키워드 |
Needle-structured ZnO nanorods; Solution Process; Glucose Oxidase; Cyclic voltammetry
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| E-Mail |
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| 원문파일 |
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