Multilayered Polypyrrole-Coated Carbon Nanotubes To Improve Functional Stability and Electrical Properties of Neural Electrodes

作者：Chen Hailan; Guo Longhua; Ferhan Abdul R; Kim Dong Hwan^*

来源：Journal of Physical Chemistry C, 2011, 115(13): 5492-5499.

DOI：10.1021/jp111498e

The surface of neural electrodes was modified with rnultilayered, polypyrrole (PPy)-coated, multiwalled carbon nanotubes (MWCNTs) via the layer-by-layer fabrication method. The modified electrode with PPy-coated MWCNTs exhibited a significant improvement over conventional Au electrodes and PPy-coated electrodes with respect to the electrical properties based on charge storage capacity (660 times larger), impedance (5 times lower), and electrochemical stability (3 times more stable). Positive results from the biocompatibility tests conducted on PC12 cells and RAW 264.7 further suggested that our multilayered, PPy-coated MWCNT was an excellent candidate for the surface modification of neural electrodes.

• 出版日期2011-4-7
• 单位南阳理工学院