| 학회 |
한국고분자학회 |
| 학술대회 |
2018년 봄 (04/04 ~ 04/06, 대전컨벤션센터) |
| 권호 |
43권 1호 |
| 발표분야 |
기능성 고분자 |
| 제목 |
Ultrasensitive and selective organic FET-type non-enzymatic dopamine sensor using platinum nanoparticles-decorated reduced graphene oxide |
| 초록 |
In this study, we developed an organic field-effect-transistor-type (OFET) non-enzyme biosensor using platinum nanoparticles decorated reduced graphene oxide (Pt_rGO) for ultrasensitive and selective dopamine (DA) detection. The Pt_rGOs were fabricated by reducing GO aqueous solution containing Pt precursors (PtCl4) with a chemical reducing agent. The Pt_rGOs and conducting-polymer source–drain electrode pattern were immobilized on graphene substrate by π–π interactions to form the DA sensor. The resulting OFET sensor showed a high sensitivity to remarkably low DA concentrations (100 × 10–18 M) and selectivity among interfering molecules. Good stability was expected for the OFET sensor, because it was fabricated without an enzymatic receptor. Furthermore, the OFET sensors have possibility of flexible device and offer the possibility of wide application as wearable and portable sensors. |
| 저자 |
오정균, 장정식
|
| 소속 |
서울대 |
| 키워드 |
organic materials; sensor; FET; dopamine; graphene; platinum
|
| E-Mail |
|
