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Polymers02:34

Polymers

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Carbonized Polymer for Joule Heating Processing Towards Biosensor Development.

Mohammad Aminul Haque, Nickolay V Lavrik, Dale Hensley

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |December 11, 2021
    PubMed
    Summary

    Researchers developed novel carbonized microelectrodes using Joule heating compatible with CMOS technology. These low-cost electrodes are promising for integrated biosensor platforms in medical diagnostics.

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    Area of Science:

    • Materials Science
    • Electrical Engineering
    • Biomedical Engineering

    Background:

    • Developing cost-effective and integrated biosensors is crucial for medical diagnostics.
    • Current biosensor platforms often lack monolithic integration with microelectronic systems.
    • Carbon-based materials offer potential for low-cost, conductive electrodes.

    Purpose of the Study:

    • To develop carbonized microelectrodes using a CMOS-compatible Joule heating process.
    • To investigate the feasibility of using 3D-printed polymer structures for electrode fabrication.
    • To assess the electrical conductivity and carbonization degree of the fabricated electrodes.

    Main Methods:

    • 3D printing of bridge-on-pillars polymer structures using two-photon polymerization (2PP).
    • Annealing of polymer structures under various conditions to induce carbonization and enhance conductivity.
    • Joule heating process utilized for electrode fabrication within a CMOS-compatible temperature range.
    • Raman spectroscopy employed to evaluate the degree of carbonization.

    Main Results:

    • Successfully fabricated carbonized microelectrodes with appreciable electrical conductivity.
    • Demonstrated a Joule heating process compatible with CMOS fabrication temperatures.
    • Raman spectroscopy confirmed successful carbonization of the polymer precursor.
    • Achieved electrodes suitable for driving current for integrated biosensor applications.

    Conclusions:

    • The developed carbonized polymer electrodes are suitable for low-cost, monolithic biosensor development.
    • The CMOS-compatible fabrication process enables integration with existing microelectronic platforms.
    • These electrodes hold significant potential for advancing medical diagnosis and treatment through integrated biosensing.