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Analog programing of conducting-polymer dendritic interconnections and control of their morphology

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  • Kamila Janzakova

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN)

  • Ankush Kumar

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN)

  • Mahdi Ghazal

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN)

  • Anna Susloparova

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN)

  • Yannick Coffinier

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN)

  • Fabien Alibart

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN
    Université de Sherbrooke)

  • Sébastien Pecqueur

    (Univ. Lille, CNRS, Centrale Lille, Univ. Polytechnique Hauts-de-France, UMR 8520—IEMN)

Abstract

Although materials and processes are different from biological cells’, brain mimicries led to tremendous achievements in parallel information processing via neuromorphic engineering. Inexistent in electronics, we emulate dendritic morphogenesis by electropolymerization in water, aiming in operando material modification for hardware learning. Systematic study of applied voltage-pulse parameters details on tuning independently morphological aspects of micrometric dendrites’: fractal number, branching degree, asymmetry, density or length. Growths time-lapse image processing shows spatial features to be dynamically dependent, and expand distinctively before and after conductive bridging with two electro-generated dendrites. Circuit-element analysis and impedance spectroscopy confirms their morphological control in temporal windows where growth kinetics is finely perturbed by the input frequency and duty cycle. By the emulation of one’s most preponderant mechanisms for brain’s long-term memory, its implementation in vicinity of sensing arrays, neural probes or biochips shall greatly optimize computational costs and recognition required to classify high-dimensional patterns from complex environments.

Suggested Citation

  • Kamila Janzakova & Ankush Kumar & Mahdi Ghazal & Anna Susloparova & Yannick Coffinier & Fabien Alibart & Sébastien Pecqueur, 2021. "Analog programing of conducting-polymer dendritic interconnections and control of their morphology," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
  • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-27274-9
    DOI: 10.1038/s41467-021-27274-9
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    References listed on IDEAS

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    1. Jonathan Rivnay & Sahika Inal & Brian A. Collins & Michele Sessolo & Eleni Stavrinidou & Xenofon Strakosas & Christopher Tassone & Dean M. Delongchamp & George G. Malliaras, 2016. "Structural control of mixed ionic and electronic transport in conducting polymers," Nature Communications, Nature, vol. 7(1), pages 1-9, September.
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