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A customizable, low-cost 3D-printed device for live cell confinement imaging.

Hunter Richman1, Jin Ou1, Manpreet Khera1

  • 1Department of Chemistry, Indiana University, Bloomington, IN 47405, USA.

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|March 24, 2026
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Summary
This summary is machine-generated.

Researchers developed an affordable, customizable 3D-printed cell confinement platform. This tool enables studying how physical constraints impact cell behavior, like migration and cancer invasiveness, with high cell viability.

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Area of Science:

  • Biophysics
  • Cell Biology
  • Biomedical Engineering

Background:

  • Physical confinement significantly influences cellular functions, including migration and cancer invasiveness.
  • Existing in vitro confinement platforms often face limitations such as specialized fabrication, limited design flexibility, and high costs, hindering widespread adoption.
  • There is a need for accessible and versatile tools to study the effects of physical constraints on cell behavior.

Purpose of the Study:

  • To introduce an inexpensive, customizable, and accessible cell confinement platform fabricated using 3D printing.
  • To demonstrate the platform's ability to precisely control physical confinement heights for cell studies.
  • To enable broader exploration of how mechanical restriction modulates cell function.

Main Methods:

  • Fabrication of a customizable confinement device using standard 3D printers and readily available materials.
  • Utilizing a PDMS pillar to compress coverslips against polystyrene spacer beads, defining confinement heights of 3, 7, or 12 μm.
  • Validation of the platform's performance with both adherent and suspension cells under live-cell imaging conditions for at least 24 hours.

Main Results:

  • The 3D-printed platform reliably confines both adherent and suspension cells.
  • The device generates graded morphological changes in cells based on confinement height.
  • High cell viability was maintained for at least 24 hours under live-cell imaging, demonstrating the platform's suitability for dynamic studies.

Conclusions:

  • The developed 3D-printed platform offers a cost-effective, tunable, and reproducible solution for cell confinement studies.
  • This accessible device overcomes limitations of existing platforms, promoting wider adoption in biological research.
  • The platform facilitates the investigation of mechanical restriction's role in cell function across various physiological and pathological contexts.