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Fabrication of Bioengineered Skin by Injection Molding: A Feasibility Study on Automation.

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  • 1Product Development Group Zurich pd|z, Department of Mechanical and Process Engineering, ETH Zürich, Zürich, Switzerland.

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Summary

We developed an automated injection molding technique to create bioengineered skin. This method offers a faster, more cost-effective way to produce standardized living tissues for research.

Keywords:
3D cultureautomationbiofabricationin vitro skin modeltissue engineering

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Area of Science:

  • Tissue Engineering
  • Biomaterials Science
  • Regenerative Medicine

Background:

  • Bioengineered skin is crucial for studying cell-matrix interactions.
  • Manual fabrication limits quality, standardization, and production volume.
  • Laboratory automation is needed to increase accessibility for researchers.

Purpose of the Study:

  • To develop an automated injection molding technique for fabricating bilayered skin equivalents.
  • To assess the biocompatibility and morphology of the injection-molded skin.
  • To explore automation for rapid, low-cost, standardized bioengineered tissue production.

Main Methods:

  • Developed a customized mold for injection molding.
  • Utilized two separate injections to form dermal and epidermal layers.
  • Confirmed tissue morphology and biocompatibility via histology and immunohistochemistry.

Main Results:

  • Successfully fabricated bilayered skin equivalents using injection molding.
  • Demonstrated the biocompatibility of the automated fabrication process.
  • Confirmed the distinct dermal and epidermal layers in the engineered tissue.

Conclusions:

  • Injection molding is a viable automated method for producing bioengineered skin.
  • This technique has the potential for rapid, low-cost, and standardized tissue fabrication.
  • Further investigation into this automation method could significantly advance tissue engineering research.