Chapter 5

Bioscaffolding: A New Innovative Fabrication Process

Rania Abdelgaber

Rania Abdelgaber

Technische Universität Dresden, Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty Carl Gustav Carus, Fetscherstrasse 74, 01307, Dresden, Germany

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David Kilian

David Kilian

Technische Universität Dresden, Centre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty Carl Gustav Carus, Fetscherstrasse 74, 01307, Dresden, Germany

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Hendrik Fiehn

Hendrik Fiehn

GeSiM mbH, Radeberg, Germany

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First published: 14 December 2018

Summary

Biofabrication refers to the automated generation of constructs that can closely mimic the complex heterogenous nature and geometry of tissues and organs more than the current regenerative therapies do. This chapter presents an overview about the possibilities of mainly extrusion-based manufacturing technologies to create scaffolds for three-dimensional (3D) tissue models and techniques to approach a simulated natively heterogenous tissue structure. Scaffolds are designed with the aim of mimicking the in vivo microenvironment of the cells where cell-cell and cell-extracellular matrix (ECM) interactions occur, triggering cellular behavior and tissue function. Macroarchitecture describes the three-dimensional geometry of the scaffolds that has the ability to promote cell proliferation and differentiation, designed to mimic the native ECM of the cells in an optimal way. Currently, 3D bioscaffolds are mostly printed to study the cell growth or for performing the basic material and viability tests. Multimaterial printing describes the capability to print 3D objects from materials with very different properties.

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