Issue 18, 2024

Design considerations and biomaterials selection in embedded extrusion 3D bioprinting

Abstract

In embedded extrusion 3D bioprinting, a temporary matrix preserves a paste-like filament ejecting from a narrow nozzle. For granular sacrificial matrices, the methodology is known as the freeform reversible embedding of suspended hydrogels (FRESH). Embedded extrusion 3D bioprinting methods result in more rapid and controlled manufacturing of cell-laden tissue constructs, particularly vascular and multi-component structures. This report focuses on the working principles and bioink design criteria for implementing conventional embedded extrusion and FRESH 3D bioprinting strategies. We also present a set of experimental data as a guideline for selecting the support bath or matrix. We discuss the advantages of embedded extrusion methods over conventional biomanufacturing methods. This work provides a short recipe for selecting inks and printing parameters for desired shapes in embedded extrusion and FRESH 3D bioprinting methods.

Graphical abstract: Design considerations and biomaterials selection in embedded extrusion 3D bioprinting

Supplementary files

Article information

Article type
Review Article
Submitted
21 abr 2024
Accepted
11 jul 2024
First published
15 jul 2024

Biomater. Sci., 2024,12, 4506-4518

Design considerations and biomaterials selection in embedded extrusion 3D bioprinting

S. Yogeshwaran, H. Goodarzi Hosseinabadi, D. E. Gendy and A. K. Miri, Biomater. Sci., 2024, 12, 4506 DOI: 10.1039/D4BM00550C

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