caa a22 4500 445881380 CHVBK 20180317145544.0 cr unu---uuuuu 170323e20110901xx s 000 0 eng 10.1007/s00604-011-0605-4 doi (NATIONALLICENCE)springer-10.1007/s00604-011-0605-4 Surface activation of plasma-patterned carbon nanotube based DNA sensing electrodes [Elektronische Daten] [Eun Park, Joon-Hyung Jin, Joon Kim, Nam Min] We have studied the effect of treatment of multiwalled carbon nanotubes (MWCNTs) for use in DNA-based biosensors with oxygen plasma. Well-patterned MWCNT electrodes were photolithographically fabricated on glass substrates. Pure oxygen was used for etching and functionalization of the MWCNT film in a lab-made plasma chamber. The resulting electrodes exhibited a dramatic change in the morphology of their surface, the chemical composition, and the electrochemical properties in terms of peak current and peak potential separation. The electrodes also showed increased DNA immobilization efficiency and much higher sensitivity in the detection of target DNA as compared to non-treated MWCNT electrodes. Plasma treatment was optimized and electrodes were characterized by atomic force microscopy, X-ray photoelectron spectroscopy, cyclic voltammetry, and differential pulse voltammetry. Figure Well-patterned MWCNT electrodes were photolithographically fabricated on glass substrates. Pure oxygen was used for etching and functionalization of the MWCNT film. The electrodes showed increased DNA immobilization efficiency and much higher sensitivity in the detection of target DNA as compared to non-treated MWCNT electrodes Springer-Verlag, 2011 MWCNT nationallicence O2 plasma treatment nationallicence Electrochemical analysis nationallicence DNA sensor nationallicence Park Eun Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut Jin Joon-Hyung Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut Kim Joon Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut Min Nam Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 231-238 0026-3672 174:3-4<231 2011 174 604 https://doi.org/10.1007/s00604-011-0605-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00604-011-0605-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Park Eun Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 700 1- Jin Joon-Hyung Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 700 1- Kim Joon Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 700 1- Min Nam Department of Biomicrosystem Technology, Korea University, 136-701, Seoul, Korea aut NATIONALLICENCE 773 0- Microchimica Acta Springer Vienna 174/3-4(2011-09-01), 231-238 0026-3672 174:3-4<231 2011 174 604 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer