Roles of silver nanoparticles adsorbed ions and nanoparticles' size in antimicrobial activity of biosynthesized silver nanoparticles

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Roles of silver nanoparticles adsorbed ions and nanoparticles' size in antimicrobial activity of biosynthesized silver nanoparticles
	Huo, Can ; Khoshnamvand, Mehdi 1,3; Liu, Chenchen ; Wang, Houyu ; Liu, Pengle ; Yuan, Chun-Gang
刊名	MATERIALS RESEARCH EXPRESS
	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.
内容类型	期刊论文
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.North China Elect Power Univ, Dept Environm Sci & Engn, Baoding 071000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, POB 2871, Beijing 100085, 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):-.