Title :

Electrochemical dopamine biosensor using over-oxidized polypyrrole with assistance of graphene

Author(s) :

Zhang, Jian [Auteur]
State Key Laboratory of ASIC and System
Zhou, Jia [Auteur]
State Key Laboratory of ASIC and System
Yu, Yuhua [Auteur]
Fudan University [Shanghai]
Chen, Jianfeng [Auteur]
State Key Laboratory of ASIC and System
Xu, Wei-Jiang [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Transduction, Propagation et Imagerie Acoustique - IEMN [TPIA - IEMN]

Conference title :

2016 13th IEEE International Conference on Solid-State and Integrated Circuit Technology (ICSICT)

City :

Hangzhou

Country :

Chine

Start date of the conference :

2016-10-25

Publisher :

IEEE

English keyword(s) :

"Sensitivity"
"Gold"
"Biosensors"
"Electric potential"
"Microelectrodes"
"Oxidation"

HAL domain(s) :

Sciences de l'ingénieur [physics]
Physique [physics]
Informatique [cs]

English abstract : [en]

This paper described a disposable overoxidized polypyrrole/graphene/gold (OPPy/GE/Au) microelectrode by two-step electrooxidation at a three-electrode-integrated electrochemical sensor, and its application for selective ...
Show more >This paper described a disposable overoxidized polypyrrole/graphene/gold (OPPy/GE/Au) microelectrode by two-step electrooxidation at a three-electrode-integrated electrochemical sensor, and its application for selective determination of dopamine (DA) without the interference of ascorbic acid (AA). Compared with the bare Au electrode, OPPy/GE/Au electrode exhibits much stronger electroactivity for DA, as well as intense electrostatic inhibition towards the oxidation of AA at the same time. Such a compatible with mass production and low-cost fabrication of on-chip DA sensor presented a sensitivity of 1.1 μA/μM with a correlation coefficient of 0.99. These properties make the prepared biosensor suitable for the analysis of trace detection of DA in most clinical preparations with a high sensitivityShow less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Popular science :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL