The optimum functionalization of carbon nanotube/ferritin composites
2008-07-14 10:34:17 조회수639
Ji Won Lee, Kwang Min Shin, Carol Lynam, Geoffrey M. Spinks, Gordon G. Wallace, Seon Jeong Kim 1 Center for Bio-Artificial Muscle, and Department of Biomedical Engineering, Hanyang University, Seoul 133-791, Korea 2 ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Northfields Avenue,Wollongong, NSW 2522, Australia 원문 링크 :


We fabricated a covalently linked composite composed of functionalized single-walled carbon
nanotubes (f-SWNT) and ferritin protein as nanoparticles. The various f-SWNTs were prepared
using an acid treatment of purified SWNT for different functionalization times (30, 60, 120 and
180 min), and ferritin was immobilized on each of the f-SWNT by covalent immobilization.
The specific capacitance of the f-SWNT and the electrochemical activity of the f-SWNT/ferritin
composites showed a Gaussian distribution. From the electrochemical analysis, the ferritin
composite with functionalized SWNT for 60 min showed the highest capacitance and
electrochemical activity than other f-SWNT/ferritin composites. This result suggests the
optimum value for the best performance of the electrochemical properties of f-SWNT/ferritin
composites was found for a potential bioapplication.

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