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3D carbon nanofiber microelectrode arrays fabricated by plasma-assisted pyrolysis to enhance sensitivity and stability of real-time dopamine detection

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Abstract

In this paper, we have fabricated 3D carbon nanofiber microelectrode arrays (MEAs) with highly reproducible and rich chemical surface areas for fast scan cyclic voltammetry (FSCV). Carbon nanofibers are created from negative photoresist by a new process called dual O2 plasma-assisted pyrolysis. The proposed approach significantly improves film adhesion and increases surface reactivity. We showcase our sensor’s compatibility with FSCV analysis by demonstrating highly sensitive and stable FSCV dopamine measurements on a prototype 4-channel array. We envision with proper surface fuctionalization the 3D carbon nanofiber MEA enable sensitive and reliable detection of multiple neurotransmitters simultaneously.

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Acknowledgments

The device was fabricated using Nano Fabrication Core (nFab) at Wayne State University. We acknowledge the staff support during the device fabrication. This work was supported by NSF CAREER Award (1055932).

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI, 48202, USA

    Wenwen Yi & Mark Ming-Cheng Cheng

  2. Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, MI, 48202, USA

    Yuanyuan Yang

  3. Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC, 29208, USA

    Parastoo Hashemi

Authors
  1. Wenwen Yi
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  2. Yuanyuan Yang
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  3. Parastoo Hashemi
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  4. Mark Ming-Cheng Cheng
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Corresponding author

Correspondence to Mark Ming-Cheng Cheng.

Additional information

Wenwen Yi and Yuanyuan Yang contributed equally to this work.

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Yi, W., Yang, Y., Hashemi, P. et al. 3D carbon nanofiber microelectrode arrays fabricated by plasma-assisted pyrolysis to enhance sensitivity and stability of real-time dopamine detection. Biomed Microdevices 18, 112 (2016). https://doi.org/10.1007/s10544-016-0136-1

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  • DOI: https://doi.org/10.1007/s10544-016-0136-1

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