Published May 29, 2009 | Version v1
Journal article Metadata-only

Flexible electrochemical biosensors based on O2 plasma functionalized MWCNT

Creators

  • 1. Department of Biomicrosystem Technology, Korea University, Seoul (Korea, Republic of)
  • 2. School of Electrical Engineering, Korea University, Seoul (Korea, Republic of)
  • 3. Department of Control and Instrumentation Engineering, Korea University, Jochiwon (Korea, Republic of)

Description

A flexible glucose sensor is fabricated using O2 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 μA mm-2mM-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 O2 plasma-functionalized CNTs than the pristine CNT, due to some oxygen-contained groups present on the O2 plasma-functionalized CNT surface, which has been verified by XPS spectrum.

Availability note (English)

Available from http://dx.doi.org/10.1016/j.tsf.2009.01.130

Additional details

Identifiers

DOI
10.1016/j.tsf.2009.01.130;
PII
S0040-6090(09)00163-1;

Publishing Information

Journal Title
Thin Solid Films
Journal Volume
517
Journal Issue
14
Journal Page Range
p. 3883-3887
ISSN
0040-6090
CODEN
THSFAP

Conference

Title
1. international conference on microelectronics and plasma technology
Acronym
ICMAP 2008
Dates
18-20 Aug 2008
Place
Jeju (Korea, Republic of)

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42042850
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CARBON; ELECTROCHEMISTRY; ELECTRODES; ELECTRON TRANSFER; EMISSION SPECTRA; ENZYMES; GLUCOSE; NANOTUBES; ORGANIC POLYMERS; PERFORMANCE; PLASMA; SENSITIVITY; SENSORS; SIGNAL-TO-NOISE RATIO; SILOXANES; SURFACES; THIN FILMS; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ALDEHYDES; CARBOHYDRATES; CHEMISTRY; DIMENSIONLESS NUMBERS; ELECTRON SPECTROSCOPY; ELEMENTS; FILMS; HEXOSES; MONOSACCHARIDES; NANOSTRUCTURES; NONMETALS; ORGANIC COMPOUNDS; ORGANIC SILICON COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; POLYMERS; PROTEINS; SACCHARIDES; SPECTRA; SPECTROSCOPY

Optional Information

Copyright
Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.