...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Materials science & engineering >Green synthesis and characterization of silver nanoparticles using Artemisia absinthium aqueous extract - A comprehensive study
【24h】

Green synthesis and characterization of silver nanoparticles using Artemisia absinthium aqueous extract - A comprehensive study

机译：蒿苦艾水提液的绿色合成和纳米银的表征-综合研究。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Unlike chemical synthesis, biological synthesis of nanoparticles is gaining tremendous interest, and plant extracts are preferred over other biological sources due to their ample availability and wide array of reducing metabolites. In this project, we investigated the reducing potential of aqueous extract of Artemisia absinthium L. for synthesizing silver nanoparticles (AgNPs). Optimal synthesis of AgNPs with desirable physical and biological properties was investigated using ultra violet-visible spectroscopy (UV-vis), dynamic light scattering (DLS), transmission electron microscopy (TEM) and energy-dispersive X-ray analysis (EDX). To determine their appropriate concentrations for AgNP synthesis, two-fold dilutions of silver nitrate (20 to 0.62 mM) and aqueous plant extract (100 to 0.79 mg ml~(-1)) were reacted. The results showed that silver nitrate (2 mM) and plant extract (10 mg ml~(-1)) mixed in different ratios significantly affected size, stability and yield of AgNPs. Extract to AgNO_3 ratio of 6:4 v/v resulted in the highest conversion efficiency of AgNO_3 to AgNPs, with the particles in average size range of less than 100 nm. Furthermore, the direct imaging of synthesized AgNPs by TEM revealed polydispersed particles in the size range of 5 to 20 nm. Similarly, nanoparticles with the characteristic peak of silver were observed with EDX. This study presents a comprehensive investigation of the differential behavior of plant extract and AgNO_3 to synthesize biologically stable AgNPs.
机译：与化学合成不同，纳米粒子的生物合成获得了极大的兴趣，并且由于植物提取物的可利用性和大量的还原代谢物，它们比其他生物来源更可取。在这个项目中，我们研究了苦艾蒿水提物对合成银纳米颗粒（AgNPs）的还原潜力。使用紫外可见光谱（UV-vis），动态光散射（DLS），透射电子显微镜（TEM）和能量色散X射线分析（EDX）研究了具有所需物理和生物学特性的AgNP的最佳合成。为了确定其适合AgNP合成的浓度，使硝酸银（20至0.62mM）和植物水提取物（100至0.79mg ml·（-1））的两倍稀释液反应。结果表明，硝酸银（2 mM）和植物提取物（10 mg ml〜（-1））以不同比例混合会显着影响AgNPs的大小，稳定性和产量。提取物与AgNO_3的比率为6：4 v / v导致AgNO_3向AgNPs的最高转化效率，且颗粒的平均尺寸范围小于100 nm。此外，通过TEM对合成的AgNPs进行的直接成像显示了大小为5至20 nm的多分散颗粒。类似地，用EDX观察到具有银的特征峰的纳米颗粒。这项研究对植物提取物和AgNO_3合成生物稳定的AgNPs的差异行为进行了全面的研究。

著录项

  • 来源
    《Materials science & engineering》 |2016年第1期|359-365|共7页
  • 作者

    Mohammad Ali; Bosung Kim; Kevin D. Belfield; David Norman; Mary Brennan; Gul Shad Ali;

  • 作者单位

    Mid-Florida Research and Education Center and Department of Plant Pathology, University of Florida/Institute of Food and Agricultural Sciences, 2725 Binion Rd., Apopka, FL 32703, United States;

    Department of Chemistry, University of Central Florida, Orlando, FL 32816, United States;

    Department of Chemistry, University of Central Florida, Orlando, FL 32816, United States,College of Science and Liberal Arts, New Jersey Institute of Technology, Newark, NJ 07102, United States;

    Mid-Florida Research and Education Center and Department of Plant Pathology, University of Florida/Institute of Food and Agricultural Sciences, 2725 Binion Rd., Apopka, FL 32703, United States;

    Mid-Florida Research and Education Center and Department of Plant Pathology, University of Florida/Institute of Food and Agricultural Sciences, 2725 Binion Rd., Apopka, FL 32703, United States;

    Mid-Florida Research and Education Center and Department of Plant Pathology, University of Florida/Institute of Food and Agricultural Sciences, 2725 Binion Rd., Apopka, FL 32703, United States;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    AgNPs; DLS; EDX; Artemisia;

    机译：AgNPs;DLS;EDX;蒿;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号