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    Low-voltage, Dual-gate Organic Transistors with High-sensitivity and Stability towards Electrostatic Biosensing

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    low_low voltage.pdf
    Size:
    1.539Mb
    Format:
    PDF
    Description:
    Accepted Article
    Embargo End Date:
    2021-08-03
    Download
    Type
    Article
    Authors
    Nikolka, Mark
    Simatos, Dimitrios
    Foudeh, Amir
    Pfattner, Raphael
    McCulloch, Iain cc
    Bao, Zhenan
    KAUST Department
    Chemical Science Program
    KAUST Solar Center (KSC)
    Physical Science and Engineering (PSE) Division
    Date
    2020-08-03
    Online Publication Date
    2020-08-03
    Print Publication Date
    2020-09-09
    Embargo End Date
    2021-08-03
    Permanent link to this record
    http://hdl.handle.net/10754/664569
    
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    Abstract
    High levels of performance and stability have been demonstrated for conjugated polymer thin-film transistors in recent years making them promising materials for flexible electronic circuits and displays. For sensing applica-tions, however, most research efforts have been focusing on electrochemical sensing devices. Here we demonstrate a highly stable bio-sensing platform using polymer transistors based on the dual-gate mechanism. In this architec-ture a sensing signal is transduced and amplified by the capacitive coupling between a low-k bottom-dielectric and a high-k ionic elastomer top-dielectric that is in contact with an analyte solution. The new design exhibits a high signal amplification, high stability under bias-stress in various aqueous environments and low signal drift. Our platform furthermore, while responding expectedly to charged analytes such as the protein BSA, is insensitive to changes of salt concentration of the analyte solution. These features make this platform a potentially suitable tool for a variety of biosensing applications.
    Citation
    Nikolka, M., Simatos, D., Foudeh, A., Pfattner, R., McCulloch, I., & Bao, Z. (2020). Low-voltage, Dual-gate Organic Transistors with High-sensitivity and Stability towards Electrostatic Biosensing. ACS Applied Materials & Interfaces. doi:10.1021/acsami.0c10201
    Sponsors
    M.N. acknowledges financial support from the European Commission through a Marie-Curie Individual Fellowship (EC Grant Agreement Number: 747461). A.F. and Z.B. acknowledge support from the Stanford Catalyst Program for Collaborative Research and a seed grant from the Stanford Precision Health and Integrated Diagnosis (PHIND) program. D. S. acknowledges support by the Engineering and Physical Sciences Research Council (grant number EP/L015889/1).
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Applied Materials & Interfaces
    DOI
    10.1021/acsami.0c10201
    Additional Links
    https://pubs.acs.org/doi/10.1021/acsami.0c10201
    ae974a485f413a2113503eed53cd6c53
    10.1021/acsami.0c10201
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Chemical Science Program; KAUST Solar Center (KSC)

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