Tripathi Satyavrat, Singh Bhisham Narayan, Singh Divakar, Kumar Gaurav, Srivastava Pradeep
School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005 India.
School of Biomedical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, 221005 India.
3 Biotech. 2021 Apr;11(4):160. doi: 10.1007/s13205-020-02567-w. Epub 2021 Mar 7.
A novel ciprofloxacin-loaded collagen-chitosan scaffold was developed for the treatment of wound using freeze drying method. The average pore size and porosity of developed scaffold was found to be around 125 µm and 91 ± 0.56%. Moreover, swelling, degradation and mechanical tests profile supported the suitability of scaffold for wound healing process. The scaffold has high degree of hemocompatibility towards the blood and promotes the growth, migration and proliferation of fibroblast. The developed scaffold exhibits antibacterial properties and was found to be efficient against the Gram-negative () and Gram-positive () bacteria hence can be used for wound healing applications. In vivo study demonstrated that the scaffold not only escalated the tissue regeneration time but also accelerated the wound healing process compared to control. The histological studies revealed better granulation, vascularization, and remodeling of extracellular matrix along with regeneration of epidermal and dermal layer of skin. Overall, the obtained results suggested that the developed skin tissue constructs possess the enormous potential for tissue regeneration and might be a suitable biomaterial for skin tissue engineering applications.
采用冷冻干燥法制备了一种新型载环丙沙星的胶原-壳聚糖支架用于伤口治疗。所制备支架的平均孔径和孔隙率分别约为125 µm和91±0.56%。此外,膨胀、降解和力学测试结果表明该支架适用于伤口愈合过程。该支架对血液具有高度的血液相容性,可促进成纤维细胞的生长、迁移和增殖。所制备的支架具有抗菌性能,对革兰氏阴性菌和革兰氏阳性菌均有效,因此可用于伤口愈合应用。体内研究表明,与对照组相比,该支架不仅缩短了组织再生时间,还加速了伤口愈合过程。组织学研究显示,细胞外基质的肉芽形成、血管化和重塑更好,同时皮肤的表皮和真皮层也得到了再生。总体而言,所得结果表明所制备的皮肤组织构建体具有巨大的组织再生潜力,可能是皮肤组织工程应用的合适生物材料。