DNA-coated MWNT microfibers for electrochemical actuator
2012-02-20 11:28:39 조회수734
Su Ryon Shin a, Chang Kee Lee a, Tae Won Eom a, Sung-Ho Lee a, Cheong Hoon Kwon a, Insuk So b, Seon Jeong Kim a a Center for Bio-Artificial Muscle and Department of Biomedical Engineering, Hanyang University, b Department of Physiology, Seoul National University 원문 링크 :


The deoxyribonucleic acid (DNA)-coated multi-walled carbon nanotube (MWNT) hybrid fibers were fabricated by wet-spinning method. The fibers were made up with entangled nanowire networks of DNA-coated MWNTs, and it shows a strain of ∼0.15% as electrochemical actuators under low potential cycling between 0 and −0.9 V versus Ag/AgCl in 2 M NaCl solution. The fibers also show good electric conductivity (∼60 S/cm) and capacitance (50 ± 5 F/g) behaviors. Based on the appropriation of its electro-chemo-mechanical systems, the DNA/MWNT fiber can be one of the new intelligent materials for biomedical application.

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