Photopolymerizable Biomaterials and Light-Based 3D Printing Strategies for Biomedical Applications
Top Cited Papers
- 22 April 2020
- journal article
- review article
- Published by American Chemical Society (ACS) in Chemical Reviews
- Vol. 120 (19), 10748-10796
- https://doi.org/10.1021/acs.chemrev.9b00810
Abstract
Since the advent of additive manufacturing, known commonly as 3D printing, this technology has revolutionized the biofabrication landscape and driven numerous pivotal advancements in tissue engineering and regenerative medicine. Many 3D printing methods were developed in short course after Charles Hull first introduced the power of stereolithography to the world. However, materials development was not met with the same enthusiasm and remained the bottleneck in the field for some time. Only in the past decade has there been deliberate development to expand the materials toolbox for 3D printing applications to meet the true potential of 3D printing technologies. Herein, we review the development of biomaterials suited for light-based 3D printing modalities with an emphasis on bioprinting applications. We discuss the chemical mechanisms that govern photopolymerization and highlight the application of natural, synthetic, and composite biomaterials as 3D printed hydrogels. Because the quality of a 3D printed construct is highly dependent on both the material properties and processing technique, we included a final section on the theoretical and practical aspects behind light-based 3D printing as well as ways to employ that knowledge to troubleshoot and standardize the optimization of printing parameters.Funding Information
- National Institute of Child Health and Human Development (R21HD100132, R33HD090662)
- Division of Graduate Education (DGE-1650112)
- National Institute of Biomedical Imaging and Bioengineering (R01EB021857)
- Division of Civil, Mechanical and Manufacturing Innovation (1907434, 1937653)
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (R21AR074763)
- Division of Chemical, Bioengineering, Environmental, and Transport Systems (1903933)
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