Study on the effect of electrodeposited gold and palladium nanoparticles to the electrochemical properties of carbon fiber paper electrode

• Main Authors: Lin, Chen-Han, 林辰翰
• Other Authors: Yuan, Chiun-Jye
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/04253140826679065059

碩士 === 國立交通大學 === 分子醫學與生物工程研究所 === 102 === Carbon fiber paper (CFP) has been shown to be suitable for the construction of biosensors due to its low cost, good electrochemical activity and mechanical resistance. Previously, we have shown that its electrochemical properties can be improved by the oxygen plasma treatment. However, the life time of the enhancing effect of the plasma treatment is short. In this study the effect of metallic nanoparticles modification is explored to improve the enhancing effect of plasma treatment of CFP. Interestingly, the electrodeposition of gold (Au) and palladium (Pd) on the CFP was found to not only maintain the enhancing effect of plasma treatment, but also increase the electron transfer efficiency of CFP. The electrochemical properties of the electrodeposited Au and Pd nanoparticles were studied and analyzed in terms of their electrochemical responses, electron transfer efficiency, reproducibility and stability. It is our hope to establish an optimal surface modification procedure to improve the electrochemical properties of CFP electrode for future biosensor design and development.