Flexible electrochemical biosensors based on O-2 plasma functionalized MWCNT
- Authors
- Lee, Jun-Yong; Park, Eun-Jin; Lee, Cheol-Jin; Kim, Soo-Won; Pak, James Jungho; Min, Nam Ki
- Issue Date
- 29-May-2009
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- MWCNTs; Plasma-treatment; Flexible biosensors
- Citation
- THIN SOLID FILMS, v.517, no.14, pp.3883 - 3887
- Indexed
- SCIE
SCOPUS
- Journal Title
- THIN SOLID FILMS
- Volume
- 517
- Number
- 14
- Start Page
- 3883
- End Page
- 3887
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/120021
- DOI
- 10.1016/j.tsf.2009.01.130
- ISSN
- 0040-6090
- Abstract
- A flexible glucose sensor is fabricated using O-2 plasma-functionalized multiwalled carbon nanotube (MWCNT) films on polydimethylsiloxane (PDMS) substrates and its performance is electrochemically characterized. After enzyme immobilization, the GOD/MWCNT/Au/PDMS electrode exhibits a sensitivity of 18.15 mu A mm(-2)mM(-1) and a detection limit of 0.01 mM (signal to noise ratio was about 3). This high sensitivity may be attributed to a large enzyme loading and a higher electrocatalytic activity and electron transfer exhibited by O-2 plasma-functionalized CNTs than the pristine CNT, due to some oxygen-contained groups present on the O-2 plasma-functionalized CNT surface, which has been verified by XPS spectrum. (C) 2009 Elsevier B.V. All rights reserved.
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- Appears in
Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
- College of Science and Technology > Department of Electro-Mechanical Systems Engineering > 1. Journal Articles
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