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Development of a Microelectrode Array Sensing Platform for Combination Electrochemical and Spectrochemical Aqueous
Robert D Gardner1, Anhong Zhou, Nephi A Zufelt
1Department of Biological and Irrigation Engineering, Utah State University, 4105 Old Main Hill, Logan, Utah 84322-4105, U.S.A.
Sensors and Actuators. B, Chemical
|February 5, 2010
Summary
A novel microelectrode array sensor platform with 18 addressable electrodes was developed. This versatile platform enables simultaneous electrochemical and spectrochemical analysis for diverse applications.
Area of Science:
- Electrochemistry
- Sensor Technology
- Spectrochemistry
Background:
- Traditional sensor platforms lack diversity and flexibility.
- Need for versatile sensor platforms for simultaneous analysis.
Purpose of the Study:
- Design and fabricate a novel microelectrode array sensor platform.
- Enhance testing capabilities through increased diversity, flexibility, and versatility.
- Enable simultaneous electrochemical and spectrochemical analysis.
Main Methods:
- Fabrication of a microelectrode array sensor using photolithography on a glass substrate.
- Utilizing 18 individually addressable microelectrodes with a resist polymer insulating layer.
- Performing electrochemical tests with potassium ferricyanide and differential pulse anodic stripping voltammetry.
- Conducting spectrochemical analysis enabled by the optically transparent substrate.
Main Results:
- Demonstrated electrochemical characteristics and spectrochemical use with potassium ferricyanide.
- Compared electrochemical measurements against a commercial electrode.
- Successfully detected copper and lead ions in aqueous solution using differential pulse anodic stripping voltammetry.
- Validated the platform's capability for simultaneous electrochemical and spectrochemical analysis.
Conclusions:
- The novel microelectrode array sensor platform offers enhanced versatility for electrochemical and spectrochemical analyses.
- The platform is suitable for environmental testing, biotechnology, and industrial process control.
- The design allows for integrated electrochemical and spectrochemical measurements in a single device.
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