Laxman Singh, D. Singh, D. Rawat, Amar Kumar, Preeti Rawat, R. Singhal
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引用次数: 0
摘要
生物制备金属氧化物纳米颗粒的研究已经超过了传统的方法。生物方法利用植物材料和微生物剂作为还原剂和封盖剂。本文报道了从每个家庭产生的农业废弃物中生物合成氧化锌NPs的情况。城市固体有机废物(MSOW)中有很大一部分是农业废物。利用这种农业废弃物通过合成纳米颗粒来净化水中的病原体具有深远的意义,如抑制土壤污染和水污染。氧化锌纳米粒子的淡黄色/脏白色沉淀物的视觉形成初步证实了这一点。通过不同的光谱技术,如FT-IR, SEM, EDAX和HRTEM进一步表征。HRTEM研究表明,所获得的NPs的尺寸在30-52 nm之间。采用圆盘扩散法对制备的ZnO NPs进行了抑菌活性分析,结果表明ZnO NPs对大肠杆菌和枯草芽孢杆菌具有明显的抑菌活性。探索废物的潜力并将其转化为增值产品是一个新颖的步骤。通过环境友好的合成途径,成功地从农业废弃物中合成了氧化锌纳米粒子,并发现合成的氧化锌纳米粒子具有抑制细菌生长的有效作用。
Agro-waste Mediated Biosynthesis of Zinc Oxide Nanoparticles and their Antibacterial Properties: Waste to Treat
Biogenic fabrication of metal oxide nanoparticles has been gaining interest over conventional methods. Biological methods make use of plant materials and microbial agents as reducing as well as capping agents. The present work reports the biosynthesis of ZnO NPs from agricultural wastes produced in every household.
A significant portion of municipal solid organic waste (MSOW) consists of agricultural waste. Utilization of this agricultural waste towards cleaning water of pathogens through the synthesis of nanoparticles has far-reaching implications, such as curbing soil pollution and water pollution.
Preliminary confirmation was done by the visual formation of a pale yellow/dirty white precipitate of ZnO NPs. These were further characterized by different spectroscopic techniques, such as FT-IR, SEM, EDAX, and HRTEM.
The HRTEM study revealed that NPs obtained had sizes between 30-52 nm. Fabricated ZnO NPs were analyzed for their antibacterial activity by disk diffusion method, and they exhibited striking antibacterial activity against E. coli and bacillus subtilis.
Exploring the potential of waste and its conversion into a value-added product is a novel step. ZnO nanoparticles were successfully synthesized from agricultural wastes through an environmentally friendly synthetic route, and the synthesized ZnO NPs were found to be potent in inhibiting the growth of bacteria.