Amperometric biosensor based on glassy carbon electrode modified with long-length carbon nanotube and enzyme

Hajime Furutaka, Kentaro Nemoto, Yuki Inoue, Hiroki Hidaka, Hitoshi Muguruma, Hitoshi Inoue, Tatsuya Ohsawa

研究成果: Article査読

3 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号58001
ジャーナルJapanese Journal of Applied Physics
55
5
DOI
出版ステータスPublished - 2016 5

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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