| 학회 |
한국공업화학회 |
| 학술대회 |
2015년 봄 (04/29 ~ 05/01, BEXCO (부산)) |
| 권호 |
19권 1호 |
| 발표분야 |
나노_포스터 |
| 제목 |
Highly sensitive and selective FET-type Hg2+ sensor based on reduced graphene oxide – polyfuran nanocomposites |
| 초록 |
We developed the liquid-ion gated field-effect transistor (FET) sensor, based on reduced graphene oxide (rGO)-polyfuran (PF) nanocomposites. This FET sensor showed the hole transporting behavior that is called p-type sensor. The conductivity of the rGO-PF NT hybrid was higher than that of rGO and PF NTs. The real-time responses of the FET-type Hg2+ sensor were so rapid that is less than 1 sec. Immediate signal changes were observed in the wide range of Hg2+ ion concentrations from 10 pM to 100 nM that means the detection limit of Hg2+ was approximately 10 pM. Moreover, these nanocomposites have also highly selectivity of the rGO-PF hybrids toward Hg2+. Remarkable detection of Hg2+ was monitored in the metal ions mixture that very low concentrations of Hg2+ ions were mixed with in the analyte. |
| 저자 |
나원주, 박진욱, 장정식
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| 소속 |
서울대 |
| 키워드 |
FET biosensor; nanocomposites; Hg2+ biosensor; reduced graphene oxide; polyfuran
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| E-Mail |
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