Abstract
Films and microstructured scaffolds have been fabricated using direct laser writing out of different polymers: hybrid organic-inorganic ORMOCORE b59, acrylate-based AKRE23, novel organic-inorganic Zr containing hybrid SZ2080, and biodegradable PEG-DA-258. Adult myogenic stem cells were grown on these surfaces in vitro. Their adhesion, growth, and viability test results suggest good potential applicability of the materials in biomedical practice. Pieces of these polymers were implanted in rat’s paravertebral back tissue. Histological examination of the implants and surrounding tissue ex vivo after 3 weeks of implantation was conducted and results show the materials to be at least as biocompatible as surgical clips or sutures. The applied direct laser writing technique seems to offer good future prospects in a polymeric 3D scaffold design for artificial tissue engineering with autologous stem cells.
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This work was supported by the Lithuanian Science Council grant MIP-10344 (Creation of Artificial Tissues for Regenerative Medicine). Domas Paipulas and Gabija Bickauskaite (VU LRC) are acknowledged for image digital processing and proofreading.
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Malinauskas, M., Baltriukiene, D., Kraniauskas, A. et al. In vitro and in vivo biocompatibility study on laser 3D microstructurable polymers. Appl. Phys. A 108, 751–759 (2012). https://doi.org/10.1007/s00339-012-6965-8
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DOI: https://doi.org/10.1007/s00339-012-6965-8