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Recent Progress in Electrochemical pH-Sensing Materials and Configurations for Biomedical Applications.

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    Electrochemical pH sensors show significant advancements for biomedical use, driven by new materials and configurations. Future research will integrate these sensors with electronics for disease diagnostics and prevention.

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    Area of Science:

    • Electrochemistry
    • Materials Science
    • Biomedical Engineering

    Background:

    • pH-sensing materials and configurations are rapidly evolving, particularly for biomedical applications.
    • Electrochemical pH sensors have seen significant advances, especially in biomedical fields.

    Purpose of the Study:

    • To review progress in electrochemical pH sensors from 2008-2018.
    • To emphasize materials selection, system configurations, and testing protocols.
    • To discuss the role of standards in advancing pH sensor technology.

    Main Methods:

    • Review of recent literature on electrochemical and optical pH sensors.
    • Focus on electromechanical pH sensors and their biomedical applications.
    • Summary of material chemistries (metal oxides, polymers) and geometrical features (thin films, quantum dots).

    Main Results:

    • Electrochemical pH sensors with optimized materials and geometries are suitable for biomedical applications.
    • Development of necessary sensing standards and protocols is crucial for consistent benchmarking.
    • Comparison of human body pH regulation with state-of-the-art sensors for biomedical suitability.

    Conclusions:

    • Challenges in electrochemical pH sensing need to be addressed.
    • Integration of pH sensors with advanced electronics offers a platform for novel disease diagnostics and prevention technologies.
    • Future research should focus on developing robust and reliable pH sensing systems for in vivo applications.