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Co-Self-Assembled Monolayer Enables Sensitive SERS Detection of Nanoplastics via Spontaneous Hotspot Entrapment

文献类型：期刊论文

作者Yuan, Qi3,4; Wang, Yunqing4; Mei, Rongchao2; Zhao, Xizhen3,4; Song, Jie2; Chen, Jiadong4; Wu, Yixuan4; Chen, Lingxin1,4
刊名ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期2025-06-13
卷号59期号:24页码:12292-12301
关键词nanoplastics silver nanoparticles coassemblyfilm SERS quantitative detection
ISSN号0013-936X
DOI10.1021/acs.est.5c03571
通讯作者Wang, Yunqing(yqwang@yic.ac.cn) ; Chen, Lingxin(lxchen@yic.ac.cn)
英文摘要Identification and quantitative analysis of nanoplastics (NPs) in the environment are extremely challenging. Surface-enhanced Raman scattering (SERS) is a promising technique, but conventional solid SERS substrate-based detection faces difficulties such as ensuring NPs make contact with hotspots, dealing with uneven particle distribution, and poor detection repeatability. Herein, we propose a simple and sensitive SERS detection strategy by co-self-assembling silver (Ag) nanoparticles and NPs in a monolayer. 90% of NPs in solution spontaneously transfer to the monolayer within 30 s. More importantly, a single NP can be uniformly entrapped in Ag nanoparticle SERS "hotspots", resulting in a significant enhancement of the intrinsic Raman signal. This enhancement enables quantitative detection in the range of 10-2-2 mg/L for 80, 300, and 800 nm polystyrene (PS) NPs, with a low detection limit of 10-2 mg/L. The method allows for the identification of various plastic types, including PS, poly(methyl methacrylate) (PMMA), polyethylene terephthalate (PET), and polyformaldehyde (POM). This method was used to determine the efficacy of NP generation from bulk PS foam through physical (sand friction) and biological (mealworm ingestion) routes. Moreover, NPs in real seawater collected from a rocky beach were quantitatively analyzed. The coassembly monolayer-based SERS detection provides a straightforward and sensitive technique for identification and quantitative analysis of NPs.
WOS关键词SURFACE-ENHANCED RAMAN ; POLYSTYRENE ; SILVER
WOS研究方向Engineering ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001508714900001
资助机构Key Technology Research and Development Program of Shandong Province ; Key R&D Program of Shandong Province, China ; National Natural Science Foundation of China ; Instrument Developing Project of the Chinese Academy of Sciences ; Taishan Scholar Project Special Funding ; Special Fund for Leading Scholar Program of Yantai
源URL[http://ir.yic.ac.cn/handle/133337/41124]  
专题烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者Wang, Yunqing; Chen, Lingxin
作者单位1.Qingdao Marine Sci & Technol Ctr, Lab Marine Biol & Biotechnol, Qingdao 266237, Peoples R China
2.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Yuan, Qi,Wang, Yunqing,Mei, Rongchao,et al. Co-Self-Assembled Monolayer Enables Sensitive SERS Detection of Nanoplastics via Spontaneous Hotspot Entrapment[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2025,59(24):12292-12301.
APA Yuan, Qi.,Wang, Yunqing.,Mei, Rongchao.,Zhao, Xizhen.,Song, Jie.,...&Chen, Lingxin.(2025).Co-Self-Assembled Monolayer Enables Sensitive SERS Detection of Nanoplastics via Spontaneous Hotspot Entrapment.ENVIRONMENTAL SCIENCE & TECHNOLOGY,59(24),12292-12301.
MLA Yuan, Qi,et al."Co-Self-Assembled Monolayer Enables Sensitive SERS Detection of Nanoplastics via Spontaneous Hotspot Entrapment".ENVIRONMENTAL SCIENCE & TECHNOLOGY 59.24(2025):12292-12301.

入库方式： OAI收割

来源：烟台海岸带研究所

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