TY - JOUR
T1 - Amperometric biosensor based on glassy carbon electrode modified with long-length carbon nanotube and enzyme
AU - Furutaka, Hajime
AU - Nemoto, Kentaro
AU - Inoue, Yuki
AU - Hidaka, Hiroki
AU - Muguruma, Hitoshi
AU - Inoue, Hitoshi
AU - Ohsawa, Tatsuya
N1 - Publisher Copyright:
© 2016 The Japan Society of Applied Physics.
PY - 2016/5
Y1 - 2016/5
N2 - An amperometric biosensor based on a glassy carbon electrode modified with long-length multiwalled carbon nanotubes (MWCNTs) and enzyme nicotinamide-adenine-dinucleotide-dependent glucose dehydrogenase (GDH) is presented. We demonstrate the effect of the MWCNT length on the amperometric response of the enzyme biosensor. The long length of MWCNT is 200μm (average), whereas the normal length of MWCNT is 1 μm (average). The response of the long MWCNT-GDH electrode is 2 times more sensitive than that of the normal-length MWCNT-GDH electrode in the concentration range from 0.25-35 mM. The result of electrochemical impedance spectroscopy measurements suggest that the long-length MWCNT-GDH electrode formed a better electron transfer network than the normal-length one.
AB - An amperometric biosensor based on a glassy carbon electrode modified with long-length multiwalled carbon nanotubes (MWCNTs) and enzyme nicotinamide-adenine-dinucleotide-dependent glucose dehydrogenase (GDH) is presented. We demonstrate the effect of the MWCNT length on the amperometric response of the enzyme biosensor. The long length of MWCNT is 200μm (average), whereas the normal length of MWCNT is 1 μm (average). The response of the long MWCNT-GDH electrode is 2 times more sensitive than that of the normal-length MWCNT-GDH electrode in the concentration range from 0.25-35 mM. The result of electrochemical impedance spectroscopy measurements suggest that the long-length MWCNT-GDH electrode formed a better electron transfer network than the normal-length one.
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U2 - 10.7567/JJAP.55.058001
DO - 10.7567/JJAP.55.058001
M3 - Article
AN - SCOPUS:84964922350
SN - 0021-4922
VL - 55
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
IS - 5
M1 - 58001
ER -