글루코스산화효소와 금나노로드 입자의 다층막으로 구성된 촉매를 이용하여 측정한 글루코스 센싱에 대한 연구

정용진; 현규환; 한상원; 민지홍; 천승규; 고원건; 권용재

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자료유형: 학술저널

저자정보: 정용진 현규환 한상원 민지홍 천승규 고원건 권용재

저널정보: 한국수소및신에너지학회 한국수소및신에너지학회논문집 한국수소 및 신에너지학회 논문집 제26권 제2호

발행연도: 2015.4

수록면: 179 - 183 (5page)

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In this study, we propose a catalyst structure including enzyme and metal nano rod for glucose sensing. In the catalyst structure, glucose oxidase (GOx) and gold nano rod (GNR) are alternatingly immobilized on the surface of carbon nanotube (CNT), while poly(ethyleneimine) (PEI) is inserted in between the GOx and GNR to fortify their bonding and give them opposite polarization ([GOx/GNR]nPEI/CNT). To investigate the impact of [GOx/GNR]nPEI/CNT on glucose sensing, some electrochemical measurements are carried out. Initially, their optimal layer is determined by using cyclic voltammogram and as a result of that, it is proved that [GOx/GNR/ PEI]2/CNT is the best layer. Its glucose sensitivity is 13.315 μAmM-1cm-2. When it comes to the redox reaction mechanism of flavin adenine dinucleotide (FAD) within [GOx/GNR/PEI]2/CNT, (i) oxygen plays a mediator role in moving electrons and protons generated by glucose oxidation reaction to those for the reduction reaction of FAD and (ii) glucose does not affect the redox reaction of FAD. It is also recognized that the [GOx/GNR/PEI]3/CNT is limited to the surface reaction and the reaction is quasi-reversible.

#글루코스 산화효소 #글루코스 센싱 #글루코스 탐지 민감도 #글루코스산화반응 #나노크기의 금 막대기 입자 #Glucose oxidase #Glucose oxidation reaction #glucose sensing #Glucose sensitivity #Gold nano rod

참고문헌 (10)

참고문헌 신청

S.W. Kim / 2011 / Fabrication and characterization of glucose sensor using oxidation reaction on the carbon paste electrode

M.K Chung / 2011 / Ion Sensitive Field Effect Transistor based glucose sensor with Palladium gate

Q. Li / 2012 / Preparation and Characterization of Gold Nanorods / Nanorods 09:159

K. Hyun / 2013 / The Effect of Platinum Based Bimetallic Electrocatalysts on Oxygen Reduction Reaction of Proton Exchange Membrane Fuel Cells / Int. J. Electrochem. Sci 8:11752

K. Hyun / 2015 / Direct electrochemistry of glucose oxidase immobilized on carbon nanotube for improving glucose sensing / Int. J. Hydrogen Energy 40:2199

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