Department of Zoology, Kohat University of Science and Technology, Kohat, 26000, Pakistan.
Department of Biomedical Engineering, College of Future Technology, Peking University, Beijing, 100871, China.
Appl Biochem Biotechnol. 2023 Jan;195(1):264-282. doi: 10.1007/s12010-022-04152-8. Epub 2022 Sep 8.
Physical and chemical methods for production of nanoparticles (NPs) are not only harmful for environment but also toxic for living organism. The present study attempts to synthesize ZnO NPs using the natural plant extract of Fagonia cretica. The phytochemical screening of F. cretica water extract was performed to check the presence of biologically active compounds like alkaloids, tannins, carbohydrates, proteins, phenols, saponins, flavonoids, and steroids. Well-prepared ZnO NPs given sharp absorption peak at 362 were confirmed by UV-visible. XRD analysis showed the ZnO NPs having wurtzite hexagonal structure with crystalline form. TEM analysis endorses flower-shaped ZnO nanoparticles ~ 100-1000 nm. FTIR spectrum suggested the involvement of phenolic groups and amino acids and amide linkages in protein performs as the stabilizing agent in the synthesis of ZnO NPs. The ZnO NPs showed strong antibacterial behavior against two bacterial strains Gram-positive bacteria Staphylococcus aureus and Gram-negative bacteria Escherichia coli. In addition, ZnO NPs exhibited strong antioxidant activity of 79%:85.6%:89.9% at 5 μg/mL:10 μg/mL:5 μg/mL concentration of ZnO NPs respectively. This work indicates that Fagonia is considered to be appropriate and promising candidate for extending the innovative applications in the field of medicine and industry and also helpful and useful to the scientific communities.
物理和化学方法生产纳米粒子(NPs)不仅对环境有害,而且对生物体也有毒。本研究试图使用天然植物提取物法桐 cretica 来合成 ZnO NPs。对法桐 cretica 水提取物进行了植物化学筛选,以检查是否存在生物活性化合物,如生物碱、单宁、碳水化合物、蛋白质、酚类、皂苷、类黄酮和类固醇。通过紫外-可见光谱证实,制备好的 ZnO NPs 在 362 处给出尖锐的吸收峰。XRD 分析表明,ZnO NPs 具有纤锌矿六方结构的晶体形式。TEM 分析证实了花形 ZnO 纳米粒子的存在,粒径为 100-1000nm。傅里叶变换红外光谱(FTIR)表明,在 ZnO NPs 的合成中,酚类基团和氨基酸以及酰胺键参与了蛋白质的稳定作用。ZnO NPs 对革兰氏阳性菌金黄色葡萄球菌和革兰氏阴性菌大肠杆菌这两种细菌表现出很强的抗菌活性。此外,ZnO NPs 在 5μg/mL:10μg/mL:5μg/mL ZnO NPs 浓度下,表现出 79%:85.6%:89.9%的强抗氧化活性。这项工作表明,法桐 cretica 被认为是在医学和工业领域扩展创新应用的合适和有前途的候选者,也有助于科学界。