Impacts of organic matter on the toxicity of biosynthesized silver nanoparticles to green microalgae Chlorella vulgaris

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

	Impacts of organic matter on the toxicity of biosynthesized silver nanoparticles to green microalgae Chlorella vulgaris
	Khoshnamvand, Mehdi; Ashtiani, Saeed; Chen, Yongsheng; Liu, Jingfu
刊名	ENVIRONMENTAL RESEARCH
	2020-06
卷号	185 页码:1-10
关键词	Organic matter Toxicity Biosynthesized silver nanoparticles Chlorella vulgaris Allium fistulosum
ISSN号	0013-9351
英文摘要	The increasing production of eco-friendly nanoparticles like biosynthesized nanoparticles (BNPs) calls for study on their environmental and biological safety. Herein, the impact of natural organic matter on the toxicity of BNPs was studied. Using leaf extract of herbal plant Allium fistulosum, the Allium fistulosum-silver nanoparticles (AF-AgNPs) were synthesized with the yield of around 100% and used to explore the impacts of natural organic matter (Suwannee river humic acid) on their toxicity to green microalgae Chlorella vulgaris. The results showed that the as-prepared AF-AgNPs could decrease the end-points of biomass and chlorophyll a content of C. vulgaris in a dose-dependent manner. In addition, AF-AgNPs enhanced algal aggregation and decreased size of cells, especially at higher concentrations. However, organic matter showed an ameliorative effect on the toxicity of AF-AgNPs, and significant enhancement of biomass and chlorophyll a content (p < 0.05) were observed in media treated with higher contents of AF-AgNPs. Organic matter could also prevent more cellular aggregation and size reduction of C. vulgaris. Our results are helpful for understanding the effects of organic matter on the toxicity of BNPs to aquatic organisms.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44711]
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
推荐引用方式 GB/T 7714	Khoshnamvand, Mehdi,Ashtiani, Saeed,Chen, Yongsheng,et al. Impacts of organic matter on the toxicity of biosynthesized silver nanoparticles to green microalgae Chlorella vulgaris[J]. ENVIRONMENTAL RESEARCH,2020,185:1-10.
APA	Khoshnamvand, Mehdi,Ashtiani, Saeed,Chen, Yongsheng,&Liu, Jingfu.(2020).Impacts of organic matter on the toxicity of biosynthesized silver nanoparticles to green microalgae Chlorella vulgaris.ENVIRONMENTAL RESEARCH,185,1-10.
MLA	Khoshnamvand, Mehdi,et al."Impacts of organic matter on the toxicity of biosynthesized silver nanoparticles to green microalgae Chlorella vulgaris".ENVIRONMENTAL RESEARCH 185(2020):1-10.