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Developing pressure sensitive adhesive electrodes: preliminary results.

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    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |January 9, 2015
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    Summary

    New pressure-sensitive adhesive (PSA) electrodes, made with carbon black, offer an infinite shelf life and collect bio potentials. These electrodes show ECG signal quality comparable to traditional Ag-AgCl, making them a cost-effective alternative.

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    Area of Science:

    • Biomedical Engineering
    • Materials Science

    Background:

    • Traditional electrocardiogram (ECG) electrodes often suffer from dehydration, limiting their shelf life.
    • Developing long-lasting, reliable electrodes is crucial for continuous patient monitoring and remote healthcare applications.

    Purpose of the Study:

    • To evaluate a novel pressure-sensitive adhesive (PSA) electrode for collecting skin bio-potentials, specifically ECG signals.
    • To assess the performance and shelf life of PSA electrodes compared to conventional Ag-AgCl electrodes.

    Main Methods:

    • Fabrication of PSA electrodes using a mixture of carbon black powder, polar organo salt, and PSA.
    • Electrical activation of PSA electrodes via electrophoresis.
    • Simultaneous collection of ECG data from five healthy subjects using both PSA and Ag-AgCl electrodes.

    Main Results:

    • The novel PSA electrodes successfully collected skin bio-potentials and ECG signals.
    • PSA electrodes demonstrated no dehydration after prolonged storage, indicating a theoretically infinite shelf life.
    • ECG morphology recorded with PSA electrodes was nearly identical to that obtained with Ag-AgCl electrodes.

    Conclusions:

    • PSA electrodes offer a viable, long-shelf-life alternative for ECG measurements.
    • The comparable signal quality and potential cost-effectiveness make PSA electrodes an attractive option for future diagnostic applications.