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  • Organic Electrochemical Transistors for In Vivo Bioelectronics

    Author(s)
    Nawaz, Ali
    Liu, Qian
    Leong, Wei Lin
    Fairfull-Smith, Kathryn E
    Sonar, Prashant
    Griffith University Author(s)
    Sonar, Prashant
    Year published
    2021
    Metadata
    Show full item record
    Abstract
    Organic electrochemical transistors (OECTs) are presently a focus of intense research and hold great potential in expanding the horizons of the bioelectronics industry. The notable characteristics of OECTs, including their electrolyte-gating, which offers intimate interfacing with biological environments, and aqueous stability, make them particularly suitable to be operated within a living organism (in vivo). Unlike the existing in vivo bioelectronic devices, mostly based on rigid metal electrodes, OECTs form a soft mechanical contact with the biological milieu and ensure a high signal-to-noise ratio because of their powerful ...
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    Organic electrochemical transistors (OECTs) are presently a focus of intense research and hold great potential in expanding the horizons of the bioelectronics industry. The notable characteristics of OECTs, including their electrolyte-gating, which offers intimate interfacing with biological environments, and aqueous stability, make them particularly suitable to be operated within a living organism (in vivo). Unlike the existing in vivo bioelectronic devices, mostly based on rigid metal electrodes, OECTs form a soft mechanical contact with the biological milieu and ensure a high signal-to-noise ratio because of their powerful amplification capability. Such features make OECTs particularly desirable for a wide range of in vivo applications, including electrophysiological recordings, neuron stimulation, and neurotransmitter detection, and regulation of plant processes in vivo. In this review, a systematic compilation of the in vivo applications is presented that are addressed by the OECT technology. First, the operating mechanisms, and the device design and materials design principles of OECTs are examined, and then multiple examples are provided from the literature while identifying the unique device properties that enable the application progress. Finally, one critically looks at the future of the OECT technology for in vivo bioelectronic applications.
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    Journal Title
    Advanced Materials
    DOI
    https://doi.org/10.1002/adma.202101874
    Note
    This publication has been entered in Griffith Research Online as an advanced online version.
    Subject
    Biomedical and clinical sciences
    Physical sciences
    Chemical sciences
    Engineering
    OECTs
    electrophysiology
    in vivo bioelectronics
    neural interfacing
    organic transistors
    Publication URI
    http://hdl.handle.net/10072/408913
    Collection
    • Journal articles

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