| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
나노_포스터 |
| 제목 |
FET-Type Bisphenol A Sensor Based on Aptamer-Functionalized Porous Carbon Nanofibers |
| 초록 |
We fabricated aptamer-functionalized porous carbon nanofibers for use as a FET sensor to detect bisphenol A (BPA). Porous carbon nanofibers (PCNF) were fabricated by single-nozzle electrospinning two immiscible polymer solutions followed by thermal treatment in inert atmosphere. PCNF were oxidized with a HNO3/H2SO4 mixture to introduce carboxyl groups on the surface of fibers. By forming a covalent bond with amide, carboxylated PCNF (C_PCNF) were immobilized on an amine functionalized electrode substrate. And then, amine-functionalized BPA-binding aptamer was introduced to the C_PCNF. The A_C_PCNF-based FET sensors exhibited ultrahigh sensitivity and selectivity to BPA at an unprecedentedly low concentration (1 fM) and indicated a longer lifetime for the FET sensor proposed. |
| 저자 |
김성근, 장정식
|
| 소속 |
서울대 |
| 키워드 |
bisphenol a; sensor; carbon nanofiber
|
| E-Mail |
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