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6 February 2019 Biocompatible three-dimensional hydrogel microstructures fabricated by two-photon polymerization
Hong Yu, Mei-Ling Zheng, Jie Liu, Yuan-Yuan Zhao, Feng Jin, Xian-Zi Dong
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Proceedings Volume 10842, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Subdiffraction-limited Plasmonic Lithography and Innovative Manufacturing Technology; 108420C (2019) https://doi.org/10.1117/12.2506104
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China
Abstract
Poly(ethylene) glycol diacrylate(PEGDA)-based hydrogel materials with the excellent biocompatibility are widely used not only for cell culturing and tissue engineering but also for damaged bone repairing. In order to guarantee the stability of PEGDA as cell scaffolds and the compatibility with the host tissue, a further knowledge of interaction between PEGDA micronanostructure and cells is indispensable. In this study, two kinds of three-dimensional PEGDA micronanostructures have been designed and fabricated by two-photon polymerization for fibroblasts culturing. The PEGDA (average molecular weight 700) used in our study can preferably reconcile with a quantitative crosslinker to enhance the mechanical strength of structures. The polymerized line width as a function of the experimental conditions such as laser power and scanning speed during the two-photon polymerization has been investigated. Through investigating the adhesion, proliferation, and spread of fibroblasts on PEGDA micronanostructures in vitro, a response between micro-structures and fibroblast has been investigated. This study would provide the potential application of PEGDA hydrogel in biophotonics and tissue engineering.
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Hong Yu, Mei-Ling Zheng, Jie Liu, Yuan-Yuan Zhao, Feng Jin, and Xian-Zi Dong "Biocompatible three-dimensional hydrogel microstructures fabricated by two-photon polymerization", Proc. SPIE 10842, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Subdiffraction-limited Plasmonic Lithography and Innovative Manufacturing Technology, 108420C (6 February 2019); https://doi.org/10.1117/12.2506104
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KEYWORDS
Scanning electron microscopy
Two photon polymerization
Laser scanners
Tissue engineering
Biomedical optics
Tissues
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