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Three-dimensional, multifunctional neural interfaces for cortical spheroids and engineered assembloids.

Yoonseok Park1,2, Colin K Franz3,4,5, Hanjun Ryu1,6

  • 1Querrey Simpson Institute for Bioelectronics, Northwestern University, Evanston, IL 60208, USA.

Science Advances
|March 18, 2021
PubMed
Summary
This summary is machine-generated.

Researchers developed novel 3D frameworks for neural interfaces, enabling advanced study of brain organoids (cortical spheroids) and their complex functions in vitro. These platforms offer new avenues for neuroscience research.

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Area of Science:

  • Neuroscience
  • Biotechnology
  • Materials Science

Background:

  • Three-dimensional (3D) cortical spheroids are vital in vitro models for studying brain development and neurological diseases.
  • Conventional methods struggle to effectively interface with these complex 3D neural constructs for neuromodulation, sensing, and manipulation.

Purpose of the Study:

  • To introduce microfabricated 3D frameworks designed as compliant, multifunctional neural interfaces for cortical spheroids and assembloids.
  • To demonstrate the versatility and capabilities of these novel neural interface platforms.

Main Methods:

  • Development of microfabricated 3D frameworks with complex architectures and high-resolution features.
  • Integration of electrical, optical, chemical, and thermal interfaces with cortical spheroids.

Main Results:

  • Demonstrated successful electrical, optical, chemical, and thermal interfacing with cortical spheroids.
  • Showcased the design versatility of the 3D frameworks for various applications.
  • Enabled detailed studies of coordinated bursting events and tissue regrowth in spheroid models.

Conclusions:

  • The developed 3D frameworks provide a versatile platform for advanced neuromodulation, sensing, and manipulation of neural spheroids.
  • These novel neural interfaces open new opportunities for fundamental neuroscience research, including neurodevelopment and disease modeling.