A planar microelectrode array electrodeposited by polypyrrole graphene oxide

作者：Wang Li; Jiang Ting Jun; Shi Wen Tao; Song Yi Lin; Xu Sheng Wei; Cai Xin Xia

来源：Journal of University of Electronic Science and Technology of China, 2015, 44(4): 623-626.

DOI：10.3969/j.issn.1001-0548.2015.04.025

• Electrochemical impedance
• ELectrochemical methods
• Electrodeposition process
• Graphene oxides
• Long-term recording
• Low signal-to-noise ratio
• Microelectrode array
• Planar microelectrode arrays

An efficient and reliable electrochemical method for preparing Polypyrrole Graphene oxide (PPy/GO) nanocomposites by electrodeposition on a planar microelectrode array (MEA) is reported. The electrodeposition process is carried out by chronopotentimetry measurement and the optimal condition is found. MEA is a practical tool for real-time electrophysiological evaluation of cultures and isolated tissues, especially suitable for stable long-term recording. Although MEA has these advantages, the low sensitivity and low signal-to-noise ratio still exist. The MEA electrodeposited by PPy/GO can reduce the electrochemical impedance by 92.1% and the increased response to dopamine has been observed, which is very significant for the neuro detection of electrophysiology and electrochemistry.

• 出版日期2015-7-30
• 单位中国科学院大学