Kouser Sabia, Prabhu Ashwini, Sheik Sareen, Prashantha Kalappa, Nagaraja G K, D'souza Josline Neetha, Navada K Meghana, Manasa D J
Department of Chemistry, Mangalore University, Mangalagangothri-574199, Karnataka, India.
Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalor-575018, Karnataka, India.
Int J Pharm. 2021 Sep 25;607:121048. doi: 10.1016/j.ijpharm.2021.121048. Epub 2021 Aug 25.
In this study, halloysite nanotubes (HNTs) were subjected to surface functionalization using sodium alginate and incorporated into poly(caprolactone) (PCL) to fabricate nanocomposites for potential wound healing applications. The nanocomposite films were fabricated through the solution casting technique and characterized using various instrumental methods. The films exhibited enhanced thermal and mechanical properties. FE-SEM and AFM analyses confirmed the uniform dispersion of the HNTs and increased roughness of the films, respectively. The swelling properties, in-vitro enzymatic degradation, and anti-inflammatory activity of the films were also analyzed. The MTT assay performed using NIH3T3 cell lines revealed enhanced cell proliferation (126 ± 1.38) of 5 wt% film. Besides, the cell adhesion tests of the films revealed their cytocompatibility. The scratch assay tests conducted for observing the effectiveness of the films for wound closure showed that the 5 wt% film offered a higher rate of fibroblast cell migration (32.24 ± 0.49) than the pristine PCL film. The HRBCMS assay demonstrated the hemocompatibility of these films. The biological test results indicated the delayed enzymatic degradability and haemocompatiblity of nanocomposites with enhanced cell adhesion, cell proliferation, and cell migration capabilities with respect to fibroblast cells. In summary, the synthesized nanocomposite films can be effectively used in wound healing applications after further clinical trials.
在本研究中,对埃洛石纳米管(HNTs)进行了海藻酸钠表面功能化处理,并将其掺入聚己内酯(PCL)中以制备用于潜在伤口愈合应用的纳米复合材料。通过溶液浇铸技术制备了纳米复合薄膜,并使用各种仪器方法对其进行了表征。这些薄膜表现出增强的热性能和机械性能。场发射扫描电子显微镜(FE-SEM)和原子力显微镜(AFM)分析分别证实了HNTs的均匀分散和薄膜粗糙度的增加。还分析了薄膜的溶胀性能、体外酶降解性能和抗炎活性。使用NIH3T3细胞系进行的MTT试验显示,5 wt%薄膜的细胞增殖增强(126±1.38)。此外,薄膜的细胞粘附试验显示了它们的细胞相容性。为观察薄膜伤口闭合效果而进行的划痕试验表明,5 wt%薄膜的成纤维细胞迁移率(32.24±0.49)高于原始PCL薄膜。红细胞膜稳定性试验(HRBCMS)证明了这些薄膜的血液相容性。生物学测试结果表明,纳米复合材料具有延迟酶降解性和血液相容性,对成纤维细胞具有增强的细胞粘附、细胞增殖和细胞迁移能力。总之,合成的纳米复合薄膜在进一步的临床试验后可有效地用于伤口愈合应用。
Int J Biol Macromol. 2012-6-26