西番莲叶提取物合成纳米银的绿色合成及表征

B. Lade, A. Patil
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引用次数: 1

摘要

纳米银在纳米医学、卫生、食品安全等领域有着广泛的应用。局部方法是基于自然界有毒的化学物质,因此,为了最大限度地减少有害影响,需要探索天然来源来合成snp。当代研究报道了利用西番菊叶提取物的植物化学、官能团和次生代谢物制备纳米银的绿色方法。合成SNPs的最佳条件为AgNO3 95ml +叶片提取物5ml,碱性pH为11。对温度、pH、光照、光照、不同浓度agno3等参数进行了评价。紫外光谱分析证实,光照条件下的snp合成波长为420 nm,室温条件下为428 nm,微波条件下为425 nm。红外光谱法测定烷烃、炔、胺、脂肪胺、羧酸;从叶提取物中提取的硝基化合物用于还原硝酸银合成snp。SEM和TEM分析证实,在光照条件下,14.96 nm大小的SNPs在50 ug/ml浓度下对大肠杆菌和金黄色葡萄球菌病原菌具有抗菌活性,这可能适用于基于提高SNPs的绿色可持续产品治疗病原菌。
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Green Synthesis and Characterization of Silver Nanoparticles Synthesized Using Leaf Extract of Passiflora Foetida Linn
The silver nanoparticles (SNPs) are applied in nanomedicine, health, food safety and other applications. The topical methods are based on chemicals that are toxic in nature, thus to minimize the hazardous effects the natural sources need to be explored forsynthesizing SNPs. The contemporary work reports the greener way of silver nanoparticles (SNPs) fabrication using phytochemical, functional groups and secondary metabolites from Passifloraaqueous leaf extract. The optimized condition for SNPs synthesis was 1 mM AgNO3 95ml + leaf extract 5 ml at alkaline pH 11 yields stable NPs. Various parameters such as temperature, pH, sunlight, dark, different concentration of AgNO3were evaluated. The UV-spectroscopic analysis confirms SNPs synthesis at 420 nm for sunlight based, 428 nm at room temperature and 425 nm for microwave-based conditions. The FTIR determines alkanes, alkyne, amines, aliphatic amine, carboxylic acid; nitro-compound from the leaf extract have been used for reducing silver nitrate for SNPs synthesis. The SEM and TEM analysis confirms the 14.96 nm size SNPs under sun light condition shows antimicrobial activity against E. coliand S. aureouspathogens at 50 ug/ml concentration, which may have applicability to raised SNPs based green sustainable products in treating pathogens.
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