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A bioinspired optoelectronically engineered artificial neurorobotics device with sensorimotor functionalities.

Mohammad Karbalaei Akbari1,2, Serge Zhuiykov3,4

  • 1Centre for Environmental & Energy Research, Ghent University, Global Campus, Incheon, South Korea. Mohammad.akbari@ugent.be.

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|August 29, 2019
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Researchers developed a novel bioinspired optoelectronic sensorimotor system mimicking biological neurons. This low-energy device integrates an inorganic optical synapse with a liquid metal actuator for advanced neurorobotics and bioelectronics.

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Area of Science:

  • Bioinspired engineering
  • Neurobotics
  • Optoelectronics

Background:

  • Advancements in bio- and nano-electronics rely on emulating biological sensorimotor systems.
  • Artificial neurobotics requires innovative approaches to replicate biological functions.

Purpose of the Study:

  • To develop a novel artificial bioinspired optoelectronic sensorimotor system.
  • To create a controllable imitation of optogenetically engineered neurons.

Main Methods:

  • Fabrication of an inorganic optical synapse using In-doped TiO2 nanofilm.
  • Integration of the optical synapse with a liquid metal (galinstan) actuator.
  • Generation of polarized excitatory and inhibitory postsynaptic potentials to actuate liquid metal.

Main Results:

  • The device successfully mimics the expansion and contraction of biological muscle fibers.
  • Demonstrated low-energy consumption and precise modulation of electrical and mechanical outputs.
  • The system imitates optogenetically engineered neurons in biological motor systems.

Conclusions:

  • This work represents a significant step towards next-generation low-energy Internet of Things devices.
  • The developed system is foundational for future bioinspired neurorobotic and bioelectronic applications.
  • The artificial sensorimotor system offers controllable imitation of biological neural functions.