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OptoBrain: A Wireless Sensory Interface for Optogenetics

Author

Listed:
  • Rodrigo de Albuquerque Pacheco Andrade

    (Department of Electrical Engineering and Computer Science, University of Sao Paulo, Av. Trab. São Carlense, 400—Parque Arnold Schimidt, São Carlos 13566-590, SP, Brazil
    Current address: Av. Bruno Ruggiero Filho, 971—Parque Santa Felicia Jardim, Sao Carlos 13562-420, SP, Brazil.)

  • Helder Eiki Oshiro

    (Department of Electrical Engineering and Computer Science, University of Sao Paulo, Av. Trab. São Carlense, 400—Parque Arnold Schimidt, São Carlos 13566-590, SP, Brazil)

  • Gabriel Augusto Ginja

    (Department of Electrical Engineering and Computer Science, University of Sao Paulo, Av. Trab. São Carlense, 400—Parque Arnold Schimidt, São Carlos 13566-590, SP, Brazil)

  • Eduardo Colombari

    (Department of Physiology and Pathology, State University of São Paulo (UNESP), Rua Humaitá, 1680 Centro, Araraquara 14801-903, SP, Brazil)

  • Maria Celeste Dias

    (Faculty of Medicine, University of Porto, Alameda Prof. Hernâni Monteiro, 4200-319 Porto, Portugal)

  • José A. Afonso

    (Center for Microelectromechanical Systems (CMEMS), University of Minho, Campus de Azurém, 4800-058 Guimarães, Portugal
    LABBELS—Associate Laboratory, Campus de Gualtar, 4710-057 Braga, Portugal)

  • João Paulo Pereira do Carmo

    (Department of Electrical Engineering and Computer Science, University of Sao Paulo, Av. Trab. São Carlense, 400—Parque Arnold Schimidt, São Carlos 13566-590, SP, Brazil)

Abstract

Optogenetics leverages light to control neural circuits, but traditional systems are often bulky and tethered, limiting their use. This work introduces OptoBrain, a novel, portable wireless system for optogenetics designed to overcome these challenges. The system integrates modules for multichannel data acquisition, smart neurostimulation, and continuous processing, with a focus on low-power and low-voltage operation. OptoBrain features up to eight neuronal acquisition channels with a low input-referred noise (e.g., 0.99 µVRMS at 250 sps with 1 V/V gain), and reliably streams data via a Bluetooth 5.0 link at a measured throughput of up to 400 kbps. Experimental results demonstrate robust performance, highlighting its potential as a simple, practical, and low-cost solution for emerging optogenetics research centers and enabling new avenues in neuroscience.

Suggested Citation

  • Rodrigo de Albuquerque Pacheco Andrade & Helder Eiki Oshiro & Gabriel Augusto Ginja & Eduardo Colombari & Maria Celeste Dias & José A. Afonso & João Paulo Pereira do Carmo, 2025. "OptoBrain: A Wireless Sensory Interface for Optogenetics," Future Internet, MDPI, vol. 17(10), pages 1-28, October.
    • Handle: RePEc:gam:jftint:v:17:y:2025:i:10:p:465-:d:1767601
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