Roles of silver nanoparticles adsorbed ions and nanoparticles' size in antimicrobial activity of biosynthesized silver nanoparticles
文献类型：期刊论文
| 作者 | Huo, Can; Khoshnamvand, Mehdi1,3; Liu, Chenchen; Wang, Houyu; Liu, Pengle; Yuan, Chun-Gang |
| 刊名 | MATERIALS RESEARCH EXPRESS
 |
| 出版日期 | 2019-12-01 |
| 卷号 | 6期号:12页码:- |
| 关键词 | silver nanoparticles antimicrobial activity silver ions green approach persimmon fruit extract |
| ISSN号 | 2053-1591 |
| 英文摘要 | The present study demonstrates a green and cost-effective approach for production of stable silver nanoparticles (AgNPs) from persimmon ( Diospyros kaki) fruit extract for the first time. 2 mM of AgNO3, temperature of 70 degrees C and incubation time of 24 h were chosen as the optimum conditions to synthesize AgNPs with a very high yield (>99.99%). Persimmon-AgNPs' characterization showed a narrow UV-vis peak at 411 nm with mean size of 20.7 +/- 9.1 nm. The negative zeta potential (-25.50 +/- 0.59 mV) revealed that high amounts of negatively charged biomolecules coated the surface of AgNPs and prevented them from aggregation through electrostatic repulsion. We further found that persimmon-AgNPs possessed a desirable stability against low pH values and high salinity concentrations when compared with Citrus maxima-mediated synthesized AgNPs. Furthermore, biosynthesized AgNPs exhibited a weak influence on the growth of bacteria (e.g., Escherichia coli and Staphylococcus aureus) and plant pathogens (like Fusarium oxysporum and Verticillium dahliae). For more investigation, a direct comparison among antimicrobial abilities of persimmon, Citrus maxima and Chenopodium aristatum mediated AgNPs was conducted, and the results demonstrated that negligible amounts of AgNPs absorbed Ag+ ions in persimmon-AgNPs as well as the relatively large size hindered their antimicrobial activity. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/42584]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.North China Elect Power Univ, Dept Environm Sci & Engn, Baoding 071000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huo, Can,Khoshnamvand, Mehdi,Liu, Chenchen,et al. Roles of silver nanoparticles adsorbed ions and nanoparticles' size in antimicrobial activity of biosynthesized silver nanoparticles[J]. MATERIALS RESEARCH EXPRESS,2019,6(12):-. |
| APA | Huo, Can,Khoshnamvand, Mehdi,Liu, Chenchen,Wang, Houyu,Liu, Pengle,&Yuan, Chun-Gang.(2019).Roles of silver nanoparticles adsorbed ions and nanoparticles' size in antimicrobial activity of biosynthesized silver nanoparticles.MATERIALS RESEARCH EXPRESS,6(12),-. |
| MLA | Huo, Can,et al."Roles of silver nanoparticles adsorbed ions and nanoparticles' size in antimicrobial activity of biosynthesized silver nanoparticles".MATERIALS RESEARCH EXPRESS 6.12(2019):-. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。