El-Attar Aalaa A, El-Wakil Hamdy B, Hassanin Ahmed H, Bakr Basant A, Almutairi Tahani M, Hagar Mohamed, Elwakil Bassma H, Olama Zakia A
Microbiology and Botany Department, Faculty of Science, Alexandria University, Alexandria 21544, Egypt.
Faculty of Applied Health Sciences Technology, Pharos University in Alexandria, Alexandria 21500, Egypt.
Membranes (Basel). 2022 May 20;12(5):536. doi: 10.3390/membranes12050536.
Healthcare textiles are gaining great attention in the textile industry. Electrospun nanofibers are considered the golden soldiers due to their strength, flexibility, and eco-friendly properties. The present study aimed to evaluate the potency of polyvinyl alcohol (PVA) nanofibers loaded with newly biosynthesized silver nanoparticles (Ag-NPs) as a wound healing dressing. Chocolate-band snail () mucus (which is part of the Mollusca defense system) was used as a novel reducing and stabilizing agent. Data indicated the effectiveness of 's mucus in silver nanoparticle synthesis after a 24 h incubation time. The biosynthesized AgNPs-SM showed a 13.15 nm particle size, -22.5 mV ζ potential, and 0.37 PDI, which proved the stability of the synthesized nanoparticles. mucus and AgNPs-SM showed potent antibacterial activity, especially against . The electrospinning technique was applied in the fabrication of PVA/AgNPs-SM nanofibers, which were homogenous with a fine diameter of about 100-170 nm and showed a significantly high antimicrobial activity. In vitro and in vivo studies revealed that PVA/AgNPs-SM nanofibers were safe and efficiently enhanced the wound healing process (typical histological picture of the proliferative phase with compact and well aligned collagen fibers in the dermal tissue after 12 days) together with bacterial growth inhibition in the infected skin area.
医疗用纺织品在纺织行业正受到极大关注。由于其强度、柔韧性和环保特性,电纺纳米纤维被视为黄金战士。本研究旨在评估负载新生物合成银纳米颗粒(Ag-NPs)的聚乙烯醇(PVA)纳米纤维作为伤口愈合敷料的效力。巧克力带蜗牛( )的黏液(它是软体动物防御系统的一部分)被用作一种新型还原剂和稳定剂。数据表明,在孵育24小时后, 的黏液在银纳米颗粒合成中具有有效性。生物合成的AgNPs-SM显示出13.15纳米的粒径、-22.5毫伏的ζ电位和0.37的多分散指数(PDI),这证明了合成纳米颗粒的稳定性。 黏液和AgNPs-SM显示出强大的抗菌活性,尤其是对 。静电纺丝技术被应用于制备PVA/AgNPs-SM纳米纤维,这些纳米纤维均匀,直径约为100 - 170纳米,显示出显著的高抗菌活性。体外和体内研究表明,PVA/AgNPs-SM纳米纤维是安全的,能有效促进伤口愈合过程(12天后真皮组织中增殖期的典型组织学图片,胶原纤维紧密且排列良好),同时抑制感染皮肤区域的细菌生长。