Student Research Committee, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran.
Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Int J Biol Macromol. 2021 Apr 30;177:485-494. doi: 10.1016/j.ijbiomac.2021.02.113. Epub 2021 Feb 20.
The goal of tissue engineering is to assemble functional constructs that restore, maintain, or improve damaged tissues or organs. Hydrogels formed with natural polymers display high potential in artificial scaffolds for tissue repair as they can resemble the extracellular matrices. Thus, the aim of this study was to design nanocomposite hydrogels of chitosan/oxidized-modified quince seed gum/curcumin-loaded in halloysite nanotubes (CS/OX-QSG/CUR-HNTs) for tissue engineering applications. The produced hydrogels were analyzed for thermal stability, degradation, swelling ratio, gelling time and mechanical properties. The results showed that with increasing content of OX-QSG, thermal stability, swelling ratio, and degradation rate of hydrogels were improved. Notably, the optimal CS/OX-QSG hydrogel with ratio of 25:75 exhibited rapid gelation behavior (<50 s) and improved compressive strength (3.96 ± 0.64 MPa), representing the suitable hydrogel for application in tissue engineering. The MTT test showed that these hydrogels were non-toxic and any reduction or stop of NIH-3 T3 cells growth wasn't observed over time. In addition, CS/OX-QSG 25:75 hydrogels containing CUR-HNTs with 10 and 30% content was significantly (P < 0.05) enhanced cell growth and proliferation (around 150%). Obtained results illustrated that CS/OX-QSG hydrogels with ratio of 25:75 and the content of 30% CUR-HNTs can be an effective scaffold for application in tissue engineering.
组织工程的目标是组装具有功能的构建体,以恢复、维持或改善受损的组织或器官。由天然聚合物形成的水凝胶在用于组织修复的人工支架中具有很大的潜力,因为它们可以类似于细胞外基质。因此,本研究的目的是设计壳聚糖/氧化改性榅桲胶/姜黄素负载在埃洛石纳米管中的纳米复合水凝胶(CS/OX-QSG/CUR-HNTs),用于组织工程应用。对所制备的水凝胶进行热稳定性、降解、溶胀比、凝胶时间和机械性能分析。结果表明,随着 OX-QSG 含量的增加,水凝胶的热稳定性、溶胀比和降解率得到提高。值得注意的是,具有 25:75 比例的最佳 CS/OX-QSG 水凝胶表现出快速凝胶化行为(<50 s)和提高的压缩强度(3.96±0.64 MPa),这代表了适用于组织工程应用的合适水凝胶。MTT 试验表明,这些水凝胶无毒,并且 NIH-3T3 细胞的生长没有随着时间的推移而减少或停止。此外,含有 10%和 30%含量 CUR-HNTs 的 CS/OX-QSG 25:75 水凝胶显著(P<0.05)增强了细胞生长和增殖(约 150%)。获得的结果表明,比例为 25:75 的 CS/OX-QSG 水凝胶和 30%CUR-HNTs 的含量可以成为组织工程应用的有效支架。