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Aperta - TÜBİTAK Açık Arşivi
Other literature type . 2017
License: CC BY
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Advanced Healthcare Materials
Article . 2017 . Peer-reviewed
License: Wiley Online Library User Agreement
Data sources: Crossref
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Extrusion Bioprinting of Shear‐Thinning Gelatin Methacryloyl Bioinks

Authors: Wanjun Liu; Marcel A. Heinrich; Yixiao Zhou; Ali Akpek; Ning Hu; Xiao Liu; Xiaofei Guan; +4 Authors

Extrusion Bioprinting of Shear‐Thinning Gelatin Methacryloyl Bioinks

Abstract

Bioprinting is an emerging technique for the fabrication of 3D cell‐laden constructs. However, the progress for generating a 3D complex physiological microenvironment has been hampered by a lack of advanced cell‐responsive bioinks that enable bioprinting with high structural fidelity, particularly in the case of extrusion‐based bioprinting. Herein, this paper reports a novel strategy to directly bioprint cell‐laden gelatin methacryloyl (GelMA) constructs using bioinks of GelMA physical gels (GPGs) achieved through a simple cooling process. Attributed to their shear‐thinning and self‐healing properties, the GPG bioinks can retain the shape and form integral structures after deposition, allowing for subsequent UV crosslinking for permanent stabilization. This paper shows the structural fidelity by bioprinting various 3D structures that are typically challenging to fabricate using conventional bioinks under extrusion modes. Moreover, the use of the GPG bioinks enables direct bioprinting of highly porous and soft constructs at relatively low concentrations (down to 3%) of GelMA. It is also demonstrated that the bioprinted constructs not only permit cell survival but also enhance cell proliferation as well as spreading at lower concentrations of the GPG bioinks. It is believed that such a strategy of bioprinting will provide many opportunities in convenient fabrication of 3D cell‐laden constructs for applications in tissue engineering, regenerative medicine, and pharmaceutical screening.

Countries
Turkey, Netherlands
Keywords

Cell Survival, Bioprinting, 2023 OA procedure, Printing, Three-Dimensional, Human Umbilical Vein Endothelial Cells, Gelatin, Humans, Methacrylates, Ink, Shear Strength, Gels

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
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