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Screen printed electrochemical platforms for pH sensing.

Dimitrios K Kampouris¹, Rashid O Kadara¹, Norman Jenkinson¹

¹Faculty of Science and Engineering, School of Biology, Chemistry and Health Science, Division of Chemistry and Materials, Manchester Metropolitan University, Chester Street, Manchester, UKM1 5GD. c.banks@mmu.ac.uk.

Analytical Methods : Advancing Methods and Applications

|September 17, 2020

Summary

This summary is machine-generated.

Screen printing enables disposable electrochemical pH sensors using phenanthraquinone and dimethylferrocene. This calibration-less technology offers reproducible, portable pH measurements with miniaturization potential.

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Area of Science:

Electrochemistry
Materials Science
Sensor Technology

Background:

Electrochemical sensors are vital for real-time monitoring.
Developing portable and calibration-less sensing platforms remains a challenge.
Screen printing offers a scalable and cost-effective fabrication method.

Purpose of the Study:

To investigate screen printing for disposable electrochemical pH sensor fabrication.
To develop a calibration-less sensing platform for portable pH measurements.
To assess the potential of phenanthraquinone-based sensors with an internal reference.

Main Methods:

Fabrication of screen-printed electrodes.
Incorporation of pH-sensitive phenanthraquinone and pH-insensitive dimethylferrocene.
Electrochemical characterization and Nernstian analysis.

Main Results:

Demonstrated successful fabrication of screen-printed electrochemical pH sensors.
Achieved Nernstian potential shift with pH using phenanthraquinone.
Utilized dimethylferrocene as a stable internal reference for calibration-less measurements.
Highlighted reproducibility and potential for miniaturization.

Conclusions:

Screen printing is a viable technology for disposable electrochemical pH sensors.
The developed sensor offers a calibration-less, reproducible, and portable solution for pH monitoring.
The generic approach has broad applicability for miniaturized sensing devices.