A Novel Hydrogen Peroxide Amperometric Sensor based on Thionin Incorporated onto a Mo6S9-xIx Nanowire Modified Glassy Carbon Electrode

H Lin, H Cheng, XP Miao, P Papakonstantinou, D Mihailovic, MX Li

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A simple and enzymeless amperometric sensor for the detection of H2O2 based on a new kind of nanomaterial Mo-6 S9-xIx (MoSI) nanowires (NWs) was developed. The construction of the sensing platform was based on strong electrostatic interactions between negatively charged MoSI NWs and positively charged thionin molecules. MoSI NWs act as not only a good substrate for the immobilization of redox mediator thionin, but also a promoter for electrocatalysis of H2O2. The fabricated sensor showed a wide linear range over the concentration of H2O2 from 5 mu M to 2.8 mM with a measurable lowest detection of 0.8 mu M; furthermore, it exhibited good stability and reproducibility.
LanguageEnglish
Pages2602-2606
JournalElectroanalysis
Volume21
Issue number23
DOIs
Publication statusPublished - Dec 2009

Fingerprint

Thionins
Amperometric sensors
Glassy carbon
Hydrogen peroxide
Hydrogen Peroxide
Nanowires
Electrodes
Electrocatalysis
Coulomb interactions
Nanostructured materials
Molecules
Sensors
Substrates

Keywords

  • Hydrogen peroxide
  • MoSI nanowires
  • Thionin
  • Electrocatalysis
  • Amperometric sensors
  • Sensors

Cite this

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title = "A Novel Hydrogen Peroxide Amperometric Sensor based on Thionin Incorporated onto a Mo6S9-xIx Nanowire Modified Glassy Carbon Electrode",
abstract = "A simple and enzymeless amperometric sensor for the detection of H2O2 based on a new kind of nanomaterial Mo-6 S9-xIx (MoSI) nanowires (NWs) was developed. The construction of the sensing platform was based on strong electrostatic interactions between negatively charged MoSI NWs and positively charged thionin molecules. MoSI NWs act as not only a good substrate for the immobilization of redox mediator thionin, but also a promoter for electrocatalysis of H2O2. The fabricated sensor showed a wide linear range over the concentration of H2O2 from 5 mu M to 2.8 mM with a measurable lowest detection of 0.8 mu M; furthermore, it exhibited good stability and reproducibility.",
keywords = "Hydrogen peroxide, MoSI nanowires, Thionin, Electrocatalysis, Amperometric sensors, Sensors",
author = "H Lin and H Cheng and XP Miao and P Papakonstantinou and D Mihailovic and MX Li",
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A Novel Hydrogen Peroxide Amperometric Sensor based on Thionin Incorporated onto a Mo6S9-xIx Nanowire Modified Glassy Carbon Electrode. / Lin, H; Cheng, H; Miao, XP; Papakonstantinou, P; Mihailovic, D; Li, MX.

In: Electroanalysis, Vol. 21, No. 23, 12.2009, p. 2602-2606.

Research output: Contribution to journalArticle

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AU - Li, MX

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