| 학회 |
한국화학공학회 |
| 학술대회 |
2008년 가을 (10/23 ~ 10/24, 부산 BEXCO) |
| 권호 |
14권 2호, p.3418 |
| 발표분야 |
재료 |
| 제목 |
Carbon Nanotube/Ionic Liquid Bucky Gel Electrodes for an Application into Biosensor |
| 초록 |
Herein, we report the immobilization of organophosphorus hydrolase (OPH) on multi-walled carbon nanotube (MWNT)/ionic liquid (IL) bucky gel electrodes for the application into biosensors. The MWNT/IL bucky gels were fabricated by grinding the mixture of MWNTsand 1-butyl-3-methylimidazolium tetrafluoroborate (BMimBF4) ILs. After the immobilization of MWNT/IL gels on the cleaned gold surfaces, MWNT/IL/OPH electrodes were obtained by immersing the modified gold electrode into OPH-containing phosphate-buffered saline solution. The as-obtained MWNT/IL/OPH electrodes showed smooth and dense surface consisting of MWNT networks, as shown in SEM imaging. The electrochemical properties of pristine MWNT, MWNT/IL, MWNT/OPH, and MWNT/IL/OPH electrodes were characterized by cyclic voltammetry. The composite electrodesdisplayed the excellent electron transfer ratedue to the synergistic promotion of MWNTs and ILs to electron transfer. Furthermore, these good interfacial characteristics of MWNT/IL/OPH electrodes lead to better electrochemical properties. Therefore, MWNT/IL/OPH electrodes with good electrocatalytic activity provide a useful platform for the development of biosensors. |
| 저자 |
김동현, 최봉길, 박호석, 박태정, 홍원희, 이상엽
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| 소속 |
한국과학기술원 |
| 키워드 |
bucky gel; electrochemical biosensor; carbon nanotube; ionic liquid; organophosphorous hydrolase
|
| E-Mail |
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| 원문파일 |
초록 보기 |
