Selective determination of nicotinamide adenine dinucleotide in the presence of ascorbic acid and uric acid at a long-length carbon nanotube electrode

Atsushi Hikichi, Hitoshi Muguruma, Hitoshi Inoue, Tatsuya Ohsawa

Research output: Research - peer-reviewArticle

Abstract

Selective electrochemical determination of nicotinamide adenine dinucleotide (NADH) in the presence of ascorbic acid (AA) and uric acid (UA) at a long-length multi-walled carbon nanotube (CNT) electrode is presented. We demonstrate the effectiveness of CNT length toward the electrochemical response due to oxidation of NADH. The long-length CNT is 200μm (average), whereas normal-length CNT as a comparison is 1μm (average). In differential pulse voltammetry, the current peaks due to NADH, AA, and UA at long-length CNT electrodes were more distinct than those at normal-length electrode. Electrochemical impedance spectroscopy measurements suggested that the long-length CNT electrode formed a better electron transfer network than the normal-length electrode. The performance of selective determination of NADH are concentration range of 0.030-2.0mM in the presence of 1.2mM AA, and 0.059-2.0mM in the presence of 0.12mM UA.

LanguageEnglish
Pages13-16
Number of pages4
JournalElectrochemistry
Volume85
Issue number1
DOIs
StatePublished - 2017

Fingerprint

Carbon Nanotubes
Uric Acid
NAD
Ascorbic Acid
Electrodes
Ascorbic acid
Carbon nanotubes
Acids
Voltammetry
Electrochemical impedance spectroscopy
Oxidation
Electrons

Keywords

  • Differential Pulse Voltammetry
  • Long-Length Carbon Nanotube
  • Nicotinamide Adenine Dinucleotide

ASJC Scopus subject areas

  • Electrochemistry

Cite this

Selective determination of nicotinamide adenine dinucleotide in the presence of ascorbic acid and uric acid at a long-length carbon nanotube electrode. / Hikichi, Atsushi; Muguruma, Hitoshi; Inoue, Hitoshi; Ohsawa, Tatsuya.

In: Electrochemistry, Vol. 85, No. 1, 2017, p. 13-16.

Research output: Research - peer-reviewArticle

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N2 - Selective electrochemical determination of nicotinamide adenine dinucleotide (NADH) in the presence of ascorbic acid (AA) and uric acid (UA) at a long-length multi-walled carbon nanotube (CNT) electrode is presented. We demonstrate the effectiveness of CNT length toward the electrochemical response due to oxidation of NADH. The long-length CNT is 200μm (average), whereas normal-length CNT as a comparison is 1μm (average). In differential pulse voltammetry, the current peaks due to NADH, AA, and UA at long-length CNT electrodes were more distinct than those at normal-length electrode. Electrochemical impedance spectroscopy measurements suggested that the long-length CNT electrode formed a better electron transfer network than the normal-length electrode. The performance of selective determination of NADH are concentration range of 0.030-2.0mM in the presence of 1.2mM AA, and 0.059-2.0mM in the presence of 0.12mM UA.

AB - Selective electrochemical determination of nicotinamide adenine dinucleotide (NADH) in the presence of ascorbic acid (AA) and uric acid (UA) at a long-length multi-walled carbon nanotube (CNT) electrode is presented. We demonstrate the effectiveness of CNT length toward the electrochemical response due to oxidation of NADH. The long-length CNT is 200μm (average), whereas normal-length CNT as a comparison is 1μm (average). In differential pulse voltammetry, the current peaks due to NADH, AA, and UA at long-length CNT electrodes were more distinct than those at normal-length electrode. Electrochemical impedance spectroscopy measurements suggested that the long-length CNT electrode formed a better electron transfer network than the normal-length electrode. The performance of selective determination of NADH are concentration range of 0.030-2.0mM in the presence of 1.2mM AA, and 0.059-2.0mM in the presence of 0.12mM UA.

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