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Related Experiment Video

Updated: Mar 6, 2026

Microfluidic Chip for Axonal Injury Models Construction and Enabling Multi-Omics Analysis
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A Microfluidic Cell Culture Platform for Modeling Aligned Peripheral Nerve Bundle, Connection, and Myelination.

Ailian Jin1, Sang Wook Shim2, Mikang Shim3

  • 1Institute of Bioengineering Seoul National University, Seoul, Republic of Korea.

Advanced Healthcare Materials
|March 4, 2026
PubMed
Summary

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This summary is machine-generated.

A novel 3D-printed organ-on-a-chip platform enables precise study of sensory neuron (SN) and Schwann cell (SC) interactions, advancing peripheral nervous system research and applications in pain and regenerative medicine.

Area of Science:

  • Biomedical Engineering
  • Neuroscience
  • Regenerative Medicine

Background:

  • Traditional polydimethylsiloxane (PDMS) microfluidic platforms for peripheral nervous system research face limitations in scalability and physiological relevance.
  • There is a need for advanced organ-on-a-chip systems that allow for precise control over neuronal organization and myelination.
  • Current models often fail to recapitulate the complex in vivo microenvironment of nerve bundles.

Purpose of the Study:

  • To develop and validate a novel 3D-printed organ-on-a-chip platform for studying sensory neurite alignment and myelination.
  • To create a standardized, high-throughput system that overcomes the limitations of traditional PDMS platforms.
  • To investigate the effects of neurite alignment on neuronal growth and Schwann cell-mediated myelination.
Keywords:
3D printingmyelinationorgan‐on‐a‐chipperipheral neuropathyperipheral sensory neuron

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Last Updated: Mar 6, 2026

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Main Methods:

  • Utilized 3D printing to fabricate a microfluidic chip integrating open and closed systems for stable fluid dynamics.
  • Developed a co-culture system of primary sensory neurons (SN) and Schwann cells (SCs) to mimic in vivo nerve bundle organization.
  • Employed finite element modeling and fluid dynamics simulations to optimize chip design for nutrient distribution and biomechanical forces.
  • Quantified neurite growth and myelination using microscopy and analyzed g-ratios and nodes of Ranvier.

Main Results:

  • Neurite alignment significantly enhanced neuronal growth, with aligned neurites showing up to a 2-fold increase in area and length compared to random controls.
  • The structured environment facilitated efficient Schwann cell-mediated myelination, forming compact myelin sheaths with physiologically relevant g-ratios (∼0.6) and nodes of Ranvier.
  • The platform successfully recapitulated both myelinated and non-myelinated Remak bundles, mirroring native sensory nerve structures.

Conclusions:

  • The 3D-printed organ-on-a-chip platform provides a cost-effective, resource-efficient, and high-throughput solution for studying peripheral nerve biology.
  • This versatile tool enables precise investigation of neurite alignment, myelination, and nerve bundle formation.
  • The platform holds significant potential for advancing research in pain, neurological disease modeling, and regenerative medicine applications.