Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100, Pakistan; State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing, PR China.
Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, 61100, Pakistan.
J Photochem Photobiol B. 2019 Mar;192:147-157. doi: 10.1016/j.jphotobiol.2019.01.013. Epub 2019 Jan 31.
Synthesis of nanoparticles (NPs) through "green" chemistry is an exciting area of research with wide applications. Trianthema portulacastrum's extract containing greater amount of reducing agents has been explored first time for the synthesis of ZnO-NPs that characterized with UV/Vis, XRD, FT-IR, SEM,EDX, HR-TEM and XPS. The particles of ZnO-NPs are crystalline and having the size in the range of 25-90 nm. The cell viability of ZnO-NPs was studied using Mouse pre-osteoblast cell line MC3T3-E1 sub-clone 14 cells which confirmed its biocompatibility that render for biomedical applications. The antibacterial properties were evaluated against Staphylococcus aureus and Escherichia coli which showed high potency of synthesized ZnO-NPs against these species. The antifungal activities of ZnO-NPs were screened against Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus of fungal species. The antioxidant activity of the as-synthesized NPs was also studied using DPPH (2, 2-diphenyl-1-picrylhydrazyl) substrate. The ZnO-NPs were evaluated for catalytic activity through degradation of Synozol Navy Blue-KBF textile dye using solar irradiation that causes 91% degradation of the dye in 159 min. Mechanistic pathways for the degradation of Synozol Navy Blue-KBF dye using ZnO-NPs were also proposed from the pattern of the degradation of the dye and the resulting by-products. The results concluded that the ZnO-NPs synthesized by green method have high biological and photocatalytic applications.
通过“绿色”化学合成纳米粒子（NPs）是一个令人兴奋的研究领域，具有广泛的应用。首次探索了马齿苋提取物中含有更多还原剂，用于合成 ZnO-NPs，并用 UV/Vis、XRD、FT-IR、SEM、EDX、HR-TEM 和 XPS 对其进行了表征。ZnO-NPs 的颗粒是结晶的，尺寸在 25-90nm 范围内。使用小鼠前成骨细胞系 MC3T3-E1 亚克隆 14 细胞研究了 ZnO-NPs 的细胞活力，证实了其生物相容性，使其可用于生物医学应用。抗菌性能针对金黄色葡萄球菌和大肠杆菌进行了评估，结果表明合成的 ZnO-NPs 对这些物种具有很高的效力。还对黑曲霉、黄曲霉和烟曲霉等真菌物种进行了 ZnO-NPs 的抗真菌活性筛选。还使用 DPPH（2,2-二苯基-1-苦基肼）底物研究了合成 NPs 的抗氧化活性。通过使用太阳能辐照降解 Synozol 海军蓝-KBF 纺织染料评估了 ZnO-NPs 的催化活性，在 159 分钟内导致染料降解 91%。还提出了 ZnO-NPs 降解 Synozol 海军蓝-KBF 染料的机制途径，这是从染料的降解模式和产生的副产物得出的。结果表明，通过绿色方法合成的 ZnO-NPs 具有很高的生物和光催化应用价值。
