An intrusion and environmental effects of man-made silver nanoparticles in cold seeps

doi:10.1016/j.scitotenv.2023.168890

	An intrusion and environmental effects of man-made silver nanoparticles in cold seeps
	Zhu, Kelei 1,2,3,4; Liu, Jiawei 1,2,4; Zhao, Mingyu 5; Fu, Lulu 6; Du, Zengfeng 6; Meng, Fanqi 7; Gu, Lin 7; Liu, Peiyu 1,2,3,4; Liu, Yan1,2,3,4 ; Zhang, Chaoqun 1,2,3,4; Zhang, Xin 6; Li, Jinhua 1,2,4
	2024-02-20
发表期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
卷号	912 页码:10
通讯作者	Li, Jinhua([email protected])
摘要	Silver nanoparticles (AgNPs) are among the most widely used metal-based engineered nanomaterials in biomedicine and nanotechnology, and account for >50 % of global nanomaterial consumer products. The increasing use of AgNPs potentially causes marine ecosystem changes; however, the environmental impacts of man-made AgNPs are still poorly studied. This study reports for the first time that man-made AgNPs intruded into cold seeps, which are important marine ecosystems where hydrogen sulfide, methane, and other hydrocarbon -rich fluid seepage occur. Using a combination of electron microscopy, geochemical and metagenomic analyses, we found that in the cold seeps with high AgNPs concentrations, the relative abundance of genes associated with anaerobic oxidation of methane (AOM) was lower, while those related to the sulfide oxidizing and sulfate reducing were higher. This suggests that AgNPs can stimulate the proliferation of sulfate-reducing and sulfide -oxidizing bacteria, likely due to the effects of activating repair mechanisms of the cells against the toxicant. A reaction of AgNPs with hydrogen sulfide to form silver sulfide could also effectively reduce the amount of available sulfate in local ecosystems, which is generally used as the AOM oxidant. These novel findings indicate that man-made AgNPs may be involved in the biogeochemical cycles of sulfur and carbon in nature, and their potential effects on the releasing of methane from the marine methane seeps should not be ignored in both scientific and environmental aspects.
关键词	Silver nanoparticles Cold seep Electron microscopy Metagenomics Environmental effects Anaerobic oxidation of methane
DOI	10.1016/j.scitotenv.2023.168890
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42225402]; Key Research Program of the Institute of Geology & Geophysics, CAS[IGGCAS-202202]
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:001128220700001
出版者	ELSEVIER
WOS关键词	ANAEROBIC OXIDATION ; METHANE ; SEDIMENTS ; SEA ; DEEP ; METHANOGENESIS ; COMMUNITIES ; ESTUARINE ; ENZYME ; SINGLE
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/184240
专题	深海极端环境与生命过程研究中心
通讯作者	Li, Jinhua
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Innovat Acad Earth Sci, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China 3.Southern Marine Sci & Engn Guangdong Lab, Zhuhai 519082, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 7.Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Kelei,Liu, Jiawei,Zhao, Mingyu,et al. An intrusion and environmental effects of man-made silver nanoparticles in cold seeps[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,912:10.
APA	Zhu, Kelei.,Liu, Jiawei.,Zhao, Mingyu.,Fu, Lulu.,Du, Zengfeng.,...&Li, Jinhua.(2024).An intrusion and environmental effects of man-made silver nanoparticles in cold seeps.SCIENCE OF THE TOTAL ENVIRONMENT,912,10.
MLA	Zhu, Kelei,et al."An intrusion and environmental effects of man-made silver nanoparticles in cold seeps".SCIENCE OF THE TOTAL ENVIRONMENT 912(2024):10.