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Related Experiment Video

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Design and Validation of a Volumetric-extrusion Bioprinter for Bioprinting of Soluble Basement Membrane Extract for Translational Research
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Embedded Multimaterial Extrusion Bioprinting.

Marco Rocca1, Alessio Fragasso1,2, Wanjun Liu1,3

  • 11 Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA.

SLAS Technology
|November 15, 2017
PubMed
Summary
This summary is machine-generated.

Embedded extrusion bioprinting overcomes gravity limitations to create complex 3D structures using multiple bioinks. This automated process efficiently transforms digital models into physical constructs for tissue engineering and drug testing.

Keywords:
bioprintingembeddedextrusionfreeformmultimaterial

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Area of Science:

  • Biotechnology
  • Materials Science
  • 3D Printing

Background:

  • Conventional layer-by-layer 3D bioprinting faces limitations due to gravitational forces, restricting the fabrication of complex structures.
  • Embedded extrusion bioprinting utilizes a sacrificial hydrogel bath to support freeform bioink extrusion, overcoming gravity-induced limitations.

Purpose of the Study:

  • To optimize the experimental setup for embedded extrusion bioprinting.
  • To develop an automated workflow for efficient conversion of 3D models into physical structures.
  • To enable the fabrication of complex, multi-material volumetric structures.

Main Methods:

  • Utilized a hydrogel bath as a sacrificial printing environment for freeform extrusion.
  • Employed a multimaterial extrusion printhead setup for fabricating structures from multiple bioinks.
  • Focused on optimizing the experimental setup and automating the bioprinting process.

Main Results:

  • Successfully demonstrated the fabrication of complex freeform structures using embedded extrusion bioprinting.
  • Achieved a fast and efficient conversion of virtual 3D models into physical, extruded structures.
  • Enabled the creation of multi-material volumetric constructs.

Conclusions:

  • Embedded extrusion bioprinting is a powerful technique for generating complex 3D structures, overcoming limitations of traditional methods.
  • Automation of the process enhances efficiency and speed in creating physical constructs from digital models.
  • This technology holds significant potential for applications in tissue engineering, pharmaceutical testing, and organs-on-chips.