Development and characterisation of electroplating silver/silver chloride modified microelectrode arrays

Bufeng Bao; Bowen Ji; Minghao Wang; Kunpeng Gao; Bin Yang; Xiang Chen; Xiaolin Wang; Jingquan Liu

doi:10.1049/mnl.2018.5113

Development and characterisation of electroplating silver/silver chloride modified microelectrode arrays

Bufeng Bao, Bowen Ji, Minghao Wang, Kunpeng Gao, Bin Yang, Xiang Chen, Xiaolin Wang, Jingquan Liu

Shanghai Jiao Tong University

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

This work proposes an electroplating Ag/AgCl method to modify microelectrode arrays for the application of neural prosthesis. The conventional Ag/AgCl electrode is considered as a reference electrode due to its excellent long-term stability. However, the Ag/AgCl modified microelectrode is chosen as a working electrode in this work. The electrode with the surface area of 3.14 × 10-4 cm2 was fabricated individually by electroplating silver. The surface of the electroplated silver was chemically chloridised to form the Ag/AgCl microelectrode. The experimental results show that the fabricated Ag/AgCl microelectrode exhibits higher charge storage capacity than the unmodified microelectrode. The impedance of the Ag/AgCl modified microelectrode at 0.1 Hz is 7447 O, which decreases with two orders of magnitude compared to the unmodified one. What is more, the Ag/AgCl modified microelectrode shows clearly enhanced transduction in ionic media and improved stability based on impedance spectroscopy results. Therefore, this functionalised Ag/AgCl can be deployed as a significant electrochemical modification material.

Original language	English
Pages (from-to)	299-303
Number of pages	5
Journal	Micro and Nano Letters
Volume	14
Issue number	3
DOIs	https://doi.org/10.1049/mnl.2018.5113
State	Published - 6 Mar 2019
Externally published	Yes

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title = "Development and characterisation of electroplating silver/silver chloride modified microelectrode arrays",

abstract = "This work proposes an electroplating Ag/AgCl method to modify microelectrode arrays for the application of neural prosthesis. The conventional Ag/AgCl electrode is considered as a reference electrode due to its excellent long-term stability. However, the Ag/AgCl modified microelectrode is chosen as a working electrode in this work. The electrode with the surface area of 3.14 × 10-4 cm2 was fabricated individually by electroplating silver. The surface of the electroplated silver was chemically chloridised to form the Ag/AgCl microelectrode. The experimental results show that the fabricated Ag/AgCl microelectrode exhibits higher charge storage capacity than the unmodified microelectrode. The impedance of the Ag/AgCl modified microelectrode at 0.1 Hz is 7447 O, which decreases with two orders of magnitude compared to the unmodified one. What is more, the Ag/AgCl modified microelectrode shows clearly enhanced transduction in ionic media and improved stability based on impedance spectroscopy results. Therefore, this functionalised Ag/AgCl can be deployed as a significant electrochemical modification material.",

author = "Bufeng Bao and Bowen Ji and Minghao Wang and Kunpeng Gao and Bin Yang and Xiang Chen and Xiaolin Wang and Jingquan Liu",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering and Technology 2018Acknowledgment: The authors thank part financial support from the National Natural Science Foundation of China (grant no. 51475307), the 973 Program (grant no. 2013CB329401), and the SRFDP (grant no. 20130073110087). The authors thank Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences.",

year = "2019",

month = mar,

day = "6",

doi = "10.1049/mnl.2018.5113",

language = "英语",

volume = "14",

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journal = "Micro and Nano Letters",

issn = "1750-0443",

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TY - JOUR

T1 - Development and characterisation of electroplating silver/silver chloride modified microelectrode arrays

AU - Bao, Bufeng

AU - Ji, Bowen

AU - Wang, Minghao

AU - Gao, Kunpeng

AU - Yang, Bin

AU - Chen, Xiang

AU - Wang, Xiaolin

AU - Liu, Jingquan

N1 - Publisher Copyright: © The Institution of Engineering and Technology 2018Acknowledgment: The authors thank part financial support from the National Natural Science Foundation of China (grant no. 51475307), the 973 Program (grant no. 2013CB329401), and the SRFDP (grant no. 20130073110087). The authors thank Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences.

PY - 2019/3/6

Y1 - 2019/3/6

N2 - This work proposes an electroplating Ag/AgCl method to modify microelectrode arrays for the application of neural prosthesis. The conventional Ag/AgCl electrode is considered as a reference electrode due to its excellent long-term stability. However, the Ag/AgCl modified microelectrode is chosen as a working electrode in this work. The electrode with the surface area of 3.14 × 10-4 cm2 was fabricated individually by electroplating silver. The surface of the electroplated silver was chemically chloridised to form the Ag/AgCl microelectrode. The experimental results show that the fabricated Ag/AgCl microelectrode exhibits higher charge storage capacity than the unmodified microelectrode. The impedance of the Ag/AgCl modified microelectrode at 0.1 Hz is 7447 O, which decreases with two orders of magnitude compared to the unmodified one. What is more, the Ag/AgCl modified microelectrode shows clearly enhanced transduction in ionic media and improved stability based on impedance spectroscopy results. Therefore, this functionalised Ag/AgCl can be deployed as a significant electrochemical modification material.

AB - This work proposes an electroplating Ag/AgCl method to modify microelectrode arrays for the application of neural prosthesis. The conventional Ag/AgCl electrode is considered as a reference electrode due to its excellent long-term stability. However, the Ag/AgCl modified microelectrode is chosen as a working electrode in this work. The electrode with the surface area of 3.14 × 10-4 cm2 was fabricated individually by electroplating silver. The surface of the electroplated silver was chemically chloridised to form the Ag/AgCl microelectrode. The experimental results show that the fabricated Ag/AgCl microelectrode exhibits higher charge storage capacity than the unmodified microelectrode. The impedance of the Ag/AgCl modified microelectrode at 0.1 Hz is 7447 O, which decreases with two orders of magnitude compared to the unmodified one. What is more, the Ag/AgCl modified microelectrode shows clearly enhanced transduction in ionic media and improved stability based on impedance spectroscopy results. Therefore, this functionalised Ag/AgCl can be deployed as a significant electrochemical modification material.

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U2 - 10.1049/mnl.2018.5113

DO - 10.1049/mnl.2018.5113

M3 - 文章

AN - SCOPUS:85062499943

SN - 1750-0443

VL - 14

SP - 299

EP - 303

JO - Micro and Nano Letters

JF - Micro and Nano Letters

IS - 3

ER -

Development and characterisation of electroplating silver/silver chloride modified microelectrode arrays

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