Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Nasr City, Cairo, 11884, Egypt.
Department of Botany and Microbiology, Faculty of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
Appl Biochem Biotechnol. 2023 Oct;195(10):6421-6439. doi: 10.1007/s12010-023-04665-w. Epub 2023 Jul 14.
Today, the search for solutions to reduce wound infection and restore wound receptivity also reduces its side effects which are a difficult problem in medical science research. The greatest options for this purpose are hydrogel dressings since they are compatible with tissue and have an antibacterial effect on wound healing. Chronic wounds represent a significant burden on people and healthcare systems worldwide. Bacteria often enter such skin wounds, causing irritation and complicating the healing process. In addition, bacteria cause infection, which inhibits rejuvenation and the production of collagen. This study is aimed at developing novel chitosan (CS)-hydrolyzed starch nanocomposite (HS/Ch-NC) loaded with ciprofloxacin to enhance its skin retention and wound healing efficacy and anti-biofilm efficacy. Drug-loading on the (HS/Ch-NC) and encapsulation efficiency was 55.2% and 97.2%, respectively. The activity of HS-NC loaded with ciprofloxacin as anti-biofilm activity by 72% and 63% against Enterobacter aerogenes and Pseudomonas aeruginosa, respectively. The obtained (HS/Ch-NC) loaded with ciprofloxacin is a promising candidate for the development of improved bandage materials, as cell viability and proliferation was assessed using an SRB assay with half-maximal inhibitory concentrations (IC) at 119.1 µg/ml. In vitro scratch wound healing assay revealed significant (p ≤ 0.05) acceleration in wound closure at 24 h enhanced by 56.04% 24-h and 100% 72-h post-exposure to (HS/Ch-NC) loaded ciprofloxacin, compared to the negative control. In vivo skin retention study revealed that (HS/Ch-NC)-loaded ciprofloxacin showed 3.65-fold higher retention, respectively, than ciprofloxacin. Thus, our study assumes that ciprofloxacin-loaded HS-NC is a potential delivery system for enhancing ciprofloxacin skin retention and wound healing activity.
如今,寻找减少伤口感染和恢复伤口接受能力的方法也减少了其副作用,这是医学科学研究中的一个难题。为此,水凝胶敷料是最大的选择,因为它们与组织相容,对伤口愈合具有抗菌作用。慢性伤口给全世界的人们和医疗保健系统带来了巨大的负担。细菌经常进入这种皮肤伤口,引起刺激并使愈合过程复杂化。此外,细菌会引起感染,抑制皮肤再生和胶原蛋白的产生。本研究旨在开发新型壳聚糖(CS)-水解淀粉纳米复合材料(HS/Ch-NC)负载环丙沙星,以提高其皮肤保留和伤口愈合效果以及抗生物膜效果。药物在(HS/Ch-NC)上的负载和包封效率分别为 55.2%和 97.2%。载有环丙沙星的 HS-NC 的抗生物膜活性分别为 72%和 63%,对抗 Aerogenes 和 Pseudomonas aeruginosa。载有环丙沙星的 HS-NC 是开发改良绷带材料的有前途的候选物,因为通过 SRB 测定法评估细胞活力和增殖,半最大抑制浓度(IC)为 119.1μg/ml。体外划痕伤口愈合试验显示,与阴性对照组相比,暴露于载有环丙沙星的 HS-NC 24 小时后,伤口闭合在 24 小时内显著(p≤0.05)加速,增强了 56.04%,在 72 小时后增强了 100%。体内皮肤保留研究表明,载有环丙沙星的 HS-NC 的保留率分别比环丙沙星高 3.65 倍。因此,我们的研究假设载有环丙沙星的 HS-NC 是增强环丙沙星皮肤保留和伤口愈合活性的潜在给药系统。