Brussels Photonics (B-PHOT) - Department of Applied Physics and Photonics, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium and Polymer Chemistry & Biomaterials Group - Centre of Macromolecular Chemistry (CMaC) - Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-Bis, 9000 Ghent, Belgium.
Institute of Materials Science and Technology, TU Wien, Getreidemarkt 9, 1060 Vienna, Austria.
J Mater Chem B. 2019 May 15;7(19):3100-3108. doi: 10.1039/c8tb03308k.
Gelatin is frequently used in various biomedical applications. However, gelatin is generally extracted from an animal source, which can result in issues with reproducibility as well as pathogen transmittance. Therefore, we have investigated the potential of a recombinant peptide based on collagen I (RCPhC1) for tissue engineering applications and more specifically for adipose tissue regeneration. In the current paper, RCPhC1 was functionalized with photo-crosslinkable methacrylamide moieties to enable subsequent UV-induced crosslinking in the presence of a photo-initiator. The resulting biomaterial (RCPhC1-MA) was characterized by evaluating the crosslinking behaviour, the mechanical properties, the gel fraction, the swelling properties and the biocompatibility. The obtained results were compared with the data obtained for methacrylamide-modified gelatin (Gel-MA). The results indicated that the properties of RCPhC1-MA networks are comparable to those of animal-derived Gel-MA. RCPhC1-MA is thus an attractive synthetic alternative for animal-derived Gel-MA and is envisioned to be applicable for a wide range of tissue engineering purposes.
明胶常用于各种生物医学应用。然而,明胶通常是从动物来源提取的,这可能导致可重复性以及病原体传播的问题。因此,我们研究了基于胶原蛋白 I 的重组肽(RCPhC1)在组织工程应用中的潜力,特别是在脂肪组织再生方面。在目前的研究中,RCPhC1 被功能化,接上了可光交联的丙烯酰胺部分,以在光引发剂存在下实现随后的 UV 诱导交联。通过评估交联行为、机械性能、凝胶分数、溶胀性能和生物相容性,对得到的生物材料(RCPhC1-MA)进行了表征。并将所得结果与从动物来源的明胶(Gel-MA)得到的数据进行了比较。结果表明,RCPhC1-MA 网络的性能与动物来源的 Gel-MA 相当。因此,RCPhC1-MA 是动物来源的 Gel-MA 的一种有吸引力的合成替代品,预计可适用于广泛的组织工程用途。
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