| Effect of organic matter on the trophic transfer of silver nanoparticles in an aquatic food chain | |
Liang, Dingyuan; Fan, Wenhong; Wu, You ; Wang, Ying
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| 2022-09-15 | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
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| ISSN | 0304-3894 |
| Volume | 438Issue:0Pages:129521 |
| Abstract | 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. |
| Department | 环境化学与生态毒理学国家重点实验室 ; 环境化学与生态毒理学国家重点实验室 |
| Keyword | HUMIC SUBSTANCES AG NANOPARTICLES BIOACCUMULATION TRANSFORMATIONS ACCUMULATION ENVIRONMENTS ADSORPTION MECHANISM IMPACT GOLD |
| Document Type | 期刊论文 |
| Identifier | https://ir.rcees.ac.cn/handle/311016/47515 |
| Collection | 环境化学与生态毒理学国家重点实验室 |
| Corresponding Author | Wang, Ying |
| Affiliation | 1.Beihang Univ, Sch Space & Environm, Beijing 100191, Peoples R China 2.Beihang Univ, Beijing Adv Innovat Ctr Big Data Based Precis Med, Beijing 100191, Peoples R China 3.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China |
| Recommended Citation 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. |
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| Effect of organic ma（3285KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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