| 학회 |
한국화학공학회 |
| 학술대회 |
2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
| 권호 |
12권 1호, p.373 |
| 발표분야 |
생물화공 |
| 제목 |
Characterization of a Carbon Composite Electrode for an Electrochemical Immunosensor |
| 초록 |
A label-free electrochemical immunosensor with a carbon composite electrode was developed for rapid detection of Escherichia coli O157:H7. Bioactive platform with a porous carbon composite electrode was prepared using a sol-gel method with a mixture of graphite powder and TEOS/EtOH, and antibody against E.coli O157:H7 antibodies were physically adsorbed onto the carbon composite electrode. Direct measurement by cyclic voltammetry (CV) and electrochemical impecance spectroscopy (EIS) in presence of [Fe(CN)6]3-/4- as a redox probe showed that the immobilization of antibodies onto the carbon composite electrode surface and the binding of E.coli cells with antibodies systematically increased the electron-transfer resistance. |
| 저자 |
장병옥1, 조은찬2, 구기갑1
|
| 소속 |
1서강대, 2바이오융합기술 협동과정 |
| 키워드 |
immunosensor; AFM; CV; EIS
|
| E-Mail |
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| 원문파일 |
초록 보기 |
