Direct electrocatalytic sensing of myoglobin using an annealed Au-implanted electrode

Ion implantation is a versatile and green material surface modification technology that modifies the structure of target-neat surface by bombardment of non-metal or heavy metal ions. A new Au nanoparticle loaded ITO (AuNPs/ITO) electrodes was prepared by ion implantation and thermal annealing method...

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Bibliographic Details
Published in:International journal of electrochemical science 2024-08, Vol.19 (8), p.100681, Article 100681
Main Authors: Liang, Fenfen, Zhang, Yanhong, Zhao, Mingxia, Jiang, Junbing
Format: Article
Language:English
Subjects:
Ion beam technology
Nanosize
Particles
Sensors
Thermal annealing
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Summary:Ion implantation is a versatile and green material surface modification technology that modifies the structure of target-neat surface by bombardment of non-metal or heavy metal ions. A new Au nanoparticle loaded ITO (AuNPs/ITO) electrodes was prepared by ion implantation and thermal annealing method in this work. The obtained nanoparticles were characterized by Scanning electron microscope (SEM), X-ray photoelectron spectroscopy (XPS) and electrochemical methods. The direct electrocatalysis of Myoglobin (MB) was reported. It was found that after annealing at 500 °C for 2 h, the damage part of the implanted sample was eliminated. The surface coverage of MB on the MB/AuNPs/ITO electrode and the MB/annealed-AuNPs/ITO electrode was 4.35× 10−11 mol·cm−2 and 1.23 × 10−10 mol·cm−2, respectively. The results show that this composite method can be used to fabricate an electrocatalytic biosensor. [Display omitted]
ISSN:1452-3981
1452-3981
DOI:10.1016/j.ijoes.2024.100681