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Green synthesis of ZnO nanoparticles by Olive (Olea europaea)

机译：橄榄（Olea europaea）的绿色合成ZnO纳米颗粒

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摘要

Green synthesis of nanoparticles is superior to physical and chemical methods as it is environment-friendly and cost-effective. The present study was carried out for inducing nanoparticles synthesis by zinc nitrate in the leaves extracts of olive. Further leaves extracts were evaluated for antiradical scavenging activity by 1, 1-diphenyl-2-picryl-hydrazyl assay. Morphological and structural properties of the synthesised ZnO nanoparticles have been characterised using UV-Vis spectrophotometer, FTIR, TEM, XRD and dynamic light scattering (DLS) analysis. Further, zinc oxide nanoparticles were evaluated for antiradical scavenging activity by capacity of total antioxidant assay. Synthesised ZnO nanoparticles were confirmed by the absorption maxima at the wavelength of 370 nm. TEM image revealed that ZnO nanoparticles were spherical with average size 41 nm. FTIR investigation suggested that the flavonoids, glycosides, proteins and phenols molecules can play an important role in the stabilisation of ZnO nanoparticles.
机译：纳米颗粒的绿色合成优于环保的物理方法和化学方法，具有成本效益。本研究旨在通过硝酸锌诱导橄榄叶提取物中的纳米颗粒合成。通过1，1-二苯基-2-苦基-肼基试验评价其他叶提取物的抗自由基清除活性。已使用紫外可见分光光度计，FTIR，TEM，XRD和动态光散射（DLS）分析对合成的ZnO纳米颗粒的形态和结构特性进行了表征。此外，通过总抗氧化剂测定的能力评价氧化锌纳米颗粒的抗自由基清除活性。通过在370nm波长处的最大吸收来确认合成的ZnO纳米颗粒。 TEM图像显示ZnO纳米颗粒为球形，平均粒径为41 nm。 FTIR研究表明，类黄酮，糖苷，蛋白质和酚类分子可在ZnO纳米颗粒的稳定中起重要作用。

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