DNA-coated MWNT microfibers for electrochemical actuator

Su Ryon Shin, Chang Kee Lee, Tae Won Eom, Sung Ho Lee, Cheong Hoon Kwon, Insuk So, Seon Jeong Kim

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)173-177
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume162
Issue number1
DOIs
StatePublished - 20 Feb 2012

Keywords

  • DNA
  • Electrochemical actuation
  • Multi-walled carbon nanotube

Cite this

Shin, S. R., Lee, C. K., Eom, T. W., Lee, S. H., Kwon, C. H., So, I., & Kim, S. J. (2012). DNA-coated MWNT microfibers for electrochemical actuator. Sensors and Actuators, B: Chemical, 162(1), 173-177. https://doi.org/10.1016/j.snb.2011.12.063