Marin Maria Minodora, Albu Kaya Madalina, Kaya Durmus Alpaslan, Constantinescu Roxana, Trica Bogdan, Gifu Ioana Catalina, Alexandrescu Elvira, Nistor Cristina Lavinia, Alexa Rebeca Leu, Ianchis Raluca
National Research and Development Institute for Textile and Leather, Division Leather and Footwear Research Institute, Department of Collagen, 93 Ion Minulescu Str., 031215 Bucharest, Romania.
Advanced Polymer Materials Group, Faculty of Applied Chemistry and Materials Science, Politehnica University of Bucharest, 1-7 Polizu Street, 01106 Bucharest, Romania.
Materials (Basel). 2023 Jan 20;16(3):982. doi: 10.3390/ma16030982.
A multitude of dressings have been developed to promote wound repair, such as membranes, foams, hydrocolloids and hydrogels. In this study, a crosslinked polysaccharide hydrogel was mixed with a bioactive ingredient to synthesize a novel nanocomposite material to be used in wound healing. Variation of the ratio between hydrogel components was followed and its effect was analyzed in regard to swelling, degradation rate and thermo-mechanical behavior. The resulting crosslinked structures were characterized by FTIR and microscopy analyses. The antimicrobial activity of the crosslinked hydrogels loaded with bioactive agent was evaluated using two bacterial strains (Gram-positive Staphylococcus aureus and Gram-negative bacteria Escherichia Coli). All the results showed that the new synthesized biopolymer nanocomposites have adequate properties to be used as antibacterial wound dressings.
为促进伤口愈合，人们已研发出多种敷料，如薄膜、泡沫、水胶体和水凝胶。在本研究中，将一种交联多糖水凝胶与一种生物活性成分混合，以合成一种用于伤口愈合的新型纳米复合材料。研究了水凝胶成分之间比例的变化，并分析了其对膨胀、降解速率和热机械行为的影响。通过傅里叶变换红外光谱（FTIR）和显微镜分析对所得交联结构进行了表征。使用两种细菌菌株（革兰氏阳性金黄色葡萄球菌和革兰氏阴性大肠杆菌）评估了负载生物活性剂的交联水凝胶的抗菌活性。所有结果表明，新合成的生物聚合物纳米复合材料具有足够的性能，可作为抗菌伤口敷料使用。
