Effect of organic matter on the trophic transfer of silver nanoparticles in an aquatic food chain
文献类型：期刊论文
| 作者 | Liang, Dingyuan; Fan, Wenhong; Wu, You ; Wang, Ying
|
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2022-09-15 |
| 卷号 | 438期号:0页码:129521 |
| 关键词 | HUMIC SUBSTANCES AG NANOPARTICLES BIOACCUMULATION TRANSFORMATIONS ACCUMULATION ENVIRONMENTS ADSORPTION MECHANISM IMPACT GOLD |
| ISSN号 | 0304-3894 |
| 英文摘要 | The behavior and toxicity of nanoparticles could be affected significantly by the ubiquitous natural organic matter (NOM) in aquatic environments. However, the influence of NOM on nanoparticles along the food chain remains largely unknown. This study constructed bacteria Escherichia coli (E. coli) - protozoa Tetrahymena thermophila (T. thermophila) to evaluate the influence of NOM on the bioaccumulation, trophic transfer and toxicity of silver nanoparticles (Ag NPs). Results demonstrated that NOM could reduce the toxicity of Ag NPs to E. coli and T. thermophila by different influence mechanisms (e.g., reduce Ag NPs accumulation or complex with dissolved silver ion (Ag+)) which related to the type of NOM and organisms. Moreover, Ag NPs can be transferred and biomagnified to T. thermophila via trophic transfer. Three typical NOM could significantly increase the trophic transfer factors of Ag NPs ranging from 1.16 to 2.49, which may be ascribed to NOM reducing the capacity for T. thermophila to excrete total silver (Ag) as NOM could significantly change the form of Ag. These findings provide a novel insight into the impact of NOM on the ecological risk posed by Ag NPs through the food chain and emphasize the need to understand further the interactions between nanoparticles and NOM in various ecosystems. |
| 源URL | [https://ir.rcees.ac.cn/handle/311016/47515]  |
| 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 |
| 通讯作者 | Wang, Ying |
| 作者单位 | 1.Beihang Univ, Beijing Adv Innovat Ctr Big Data Based Precis Med, Beijing 100191, Peoples R China 2.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liang, Dingyuan,Fan, Wenhong,Wu, You,et al. Effect of organic matter on the trophic transfer of silver nanoparticles in an aquatic food chain[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,438(0):129521. |
| APA | Liang, Dingyuan,Fan, Wenhong,Wu, You,&Wang, Ying.(2022).Effect of organic matter on the trophic transfer of silver nanoparticles in an aquatic food chain.JOURNAL OF HAZARDOUS MATERIALS,438(0),129521. |
| MLA | Liang, Dingyuan,et al."Effect of organic matter on the trophic transfer of silver nanoparticles in an aquatic food chain".JOURNAL OF HAZARDOUS MATERIALS 438.0(2022):129521. |
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。