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Proteinoid-myelin hybrid systems exhibit complex electrical behaviors and Boolean logic capabilities. These biomolecular structures offer potential for biocompatible computing and bioelectronic interfaces.

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Area of Science:

  • Biomimetic neural systems
  • Neuroscience
  • Materials Science

Background:

  • Proteinoids, formed from heated amino acids, create self-signaling microspheres.
  • Myelin acts as a crucial insulator and conductor in natural nerve signaling.

Purpose of the Study:

  • To investigate the electrochemical properties and computing capabilities of proteinoid-myelin hybrid systems.
  • To explore the potential of these biomolecular assemblies in neuromorphic engineering.

Main Methods:

  • Scanning electron microscopy (SEM) for structural analysis.
  • Electrochemical impedance spectroscopy (EIS) to assess electrical properties.
  • Extracellular potential recordings over extended periods (180,000 s).

Main Results:

  • Hybrid structures demonstrated complex electrical behaviors, including spontaneous spike generation, phase transitions, and oscillations.
  • Membrane potentials ranged from -90 mV to +70 mV.
  • Hybrid systems showed higher capacitance (159.3 nF) and lower impedance (3.934 kΩ) compared to proteinoid microspheres alone.
  • Boolean logic operations were successfully performed using threshold-based signal processing on bioelectrical activity.

Conclusions:

  • Simple biomolecular components can self-assemble into functional structures capable of complex computation.
  • These findings suggest promising applications in biocompatible computing, neuromorphic engineering, and bioelectronic interfaces.