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Peer-reviewedCC BYMRS communications

Microelectrode array measurements of fungal mycelium reveal growth-associated electrical activity.

  • Mark Ablonczy1
  • Sourav Patranabish1,2
  • Sarah Schyck1
  • Saurav Sharma1
  • Hande Aydoğmus-Sasse2
  • Vasso Giagka3
  • Clementine Boutry2
  • Kunal Masania1
  1. 1Shaping Matter Lab, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, Netherlands.
  2. 2Electronic Components, Technology and Materials (ECTM), Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, Netherlands.
  3. 3Bioelectronics, Department of Microelectronics, Faculty of Electrical Engineering, Mathematics and Computer Science, Delft University of Technology, Mekelweg 4, 2628 CD Delft, Netherlands.
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Abstract

Fungal bioelectricity has promising potential for biosensing in engineered living materials, but its nature remains unclear. We use a custom microelectrode array to record the extracellular electrical activity of mycelium, along with optical tracking and impedance measurements. Measurements across three mycelial growth experiments, along with a sterile control and biocide treatment, show that spontaneous signals coincide with mycelial growth. The signals contained transient spikes with rate and amplitude distributions dependent on growth. The measurements revealed distinct rise-and-fall patterns of electrical activity as mycelium overgrew the electrodes. These results establish an initial basis for future studies and living-material applications. The online version contains supplementary material available at https://doi.org/10.1557/s43579-026-01041-7.

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Cite

BibTeXRIS
BibTeX
@article{ablonczy2026microelectrode,
  title = {{Microelectrode array measurements of fungal mycelium reveal growth-associated electrical activity.}},
  author = {Mark Ablonczy and Sourav Patranabish and Sarah Schyck and Saurav Sharma and Hande Aydoğmus-Sasse and Vasso Giagka and Clementine Boutry and Kunal Masania},
  journal = {MRS communications},
  year = {2026},
  month = sep,
  doi = {10.1557/s43579-026-01041-7},
  url = {https://europepmc.org/article/MED/42999662},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Microelectrode array measurements of fungal mycelium reveal growth-associated electrical activity.
AU  - Mark Ablonczy
AU  - Sourav Patranabish
AU  - Sarah Schyck
AU  - Saurav Sharma
AU  - Hande Aydoğmus-Sasse
AU  - Vasso Giagka
AU  - Clementine Boutry
AU  - Kunal Masania
PY  - 2026
DA  - 2026/09/28
JO  - MRS communications
DO  - 10.1557/s43579-026-01041-7
UR  - https://europepmc.org/article/MED/42999662
AB  - Fungal bioelectricity has promising potential for biosensing in engineered living materials, but its nature remains unclear. We use a custom microelectrode array to record the extracellular electrical activity of mycelium, along with optical tracking and impedance measurements. Measurements across three mycelial growth experiments, along with a sterile control and biocide treatment, show that spontaneous signals coincide with mycelial growth. The signals contained transient spikes with rate and amplitude distributions dependent on growth. The measurements revealed distinct rise-and-fall patterns of electrical activity as mycelium overgrew the electrodes. These results establish an initial basis for future studies and living-material applications. The online version contains supplementary material available at https://doi.org/10.1557/s43579-026-01041-7.
SN  - 2159-6859
SN  - 2159-6867
ER  -