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Related Experiment Video

Updated: Oct 10, 2025

Planar and Three-Dimensional Printing of Conductive Inks
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Femtosecond Laser 3D-printing of Conductive Microelectronics for Potential Biomedical Applications.

Omid Dadras-Toussi, Milad Khorrami, Mohammad Reza Abidian

    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 a novel conductive resin for 3D printing soft microdevices. This poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) based material significantly enhances electrical conductivity for bioelectronic applications.

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    Direct Laser 3D Printing of Organic Semiconductor Microdevices for Bioelectronics and Biosensors.

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2022

    Area of Science:

    • Materials Science
    • Biomedical Engineering
    • Organic Electronics

    Background:

    • Soft and conductive microdevices are crucial for organic bioelectronics and biomedical applications.
    • Two-photon polymerization (2PP) is a key 3D printing technique for fabricating submicron structures.

    Purpose of the Study:

    • To develop a novel conductive photosensitive resin for 3D printing.
    • To fabricate 3D conductive polymeric microstructures using two-photon polymerization.

    Main Methods:

    • Formulation of a novel resin using poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) and poly(ethylene glycol) diacrylate.
    • Fabrication of 3D microstructures using two-photon polymerization (2PP).

    Main Results:

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    • The developed resin incorporates PEDOT:PSS to enhance electrical conductivity.
    • Electrical conductivity of the fabricated microstructures is increased by approximately 10 orders of magnitude.

    Conclusions:

    • The novel PEDOT:PSS-doped resin enables the fabrication of highly conductive 3D polymeric microstructures via 2PP.
    • These conductive microdevices hold promise for advanced biomedical research, including neural interfaces and biosensors.