In this research, the MgO nanoparticles were incorporated into (acrylic acid /polyvinyl alcohol) PAA/PVA hydrogel by using gamma radiation technique at a dose rate of 1.9 kGy/k. The unique properties of MgO nanoparticles as structure, active surface properties, and stability make such nanoparticles have considerable potential as antimicrobial agents in food applications. In spite of known antibacterial activity of MgO NPs, the mechanism of metal oxide nanoparticle action on bacteria is complicated and not fully understood. The PAA/PVA system was mixed with various contents of MgO nanoparticles to prepare its MgO nanocomposite hydrogels. The morphology of the PAA/PVA copolymer hydrogels and their MgO nanocomposites hydrogels was characterized by using scanning electron microscopy (SEM) and transmission electron microscopy (TEM) to prove the surface, bulk change, size, and the formation of MgO nanoparticles. TEM measurement estimated that the average particle size of prepared MgO NPs was 7.13 nm. The swelling properties of the various AAc hydrogels and its MgO nanocomposites hydrogels were also studied. The prepared acrylic acid copolymers and their MgO nanocomposites were examined for applicability as antibacterial material, and the results revealed that hydrogels and MgO nanocomposites hydrogels prepared in this study have higher antibacterial activity toward Staphylococus Aureus (S.a.) than Escherichia Coli (E. Coli). The discovery of novel and efficient nanocomposites may have a potential therapeutic role.

在这项研究中，通过使用伽马辐射技术以 1.9 kGy/k 的剂量率将 MgO 纳米颗粒掺入（丙烯酸/聚乙烯醇）PAA/PVA 水凝胶中。MgO 纳米粒子的独特性质，如结构、活性表面性质和稳定性，使这种纳米粒子在食品应用中作为抗菌剂具有相当大的潜力。尽管已知 MgO NPs 具有抗菌活性，但金属氧化物纳米颗粒对细菌的作用机制很复杂且尚未完全了解。PAA/PVA 体系与不同含量的 MgO 纳米粒子混合制备其 MgO 纳米复合水凝胶。通过使用扫描电子显微镜 (SEM) 和透射电子显微镜 (TEM) 来证明 PAA/PVA 共聚物水凝胶及其 MgO 纳米复合水凝胶的形貌，以证明其表面，MgO 纳米颗粒的体积变化、尺寸和形成。TEM 测量估计制备的 MgO NPs 的平均粒径为 7.13 nm。还研究了各种 AAc 水凝胶及其 MgO 纳米复合水凝胶的溶胀性能。考察了制备的丙烯酸共聚物及其 MgO 纳米复合材料作为抗菌材料的适用性，结果表明本研究制备的水凝胶和 MgO 纳米复合水凝胶对金黄色葡萄球菌（Sa）高于大肠杆菌（E.Coli）。新型高效纳米复合材料的发现可能具有潜在的治疗作用。