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Size-controllable colloidal Ag nano-aggregates with long-time SERS detection window for on-line high-throughput detection

文献类型：期刊论文

作者Cheng, Jianxia5; Zhang, Zhiyang3,4; Zhang, Longfei2; Miao, Jiaqi5; Chen, Yan1,4; Zhao, Rongfang4; Liu, Meichun1,4; Chen, Lingxin3,4,5; Wang, Xiaoyan5
刊名TALANTA
出版日期2023-05-15
卷号257页码:8
ISSN号0039-9140
关键词Silver nano-aggregates SERS Freeze-thaw Ultrasonication High-throughput On-line detection
DOI10.1016/j.talanta.2023.124358
通讯作者Zhang, Zhiyang(zyzhang@yic.ac.cn) ; Chen, Lingxin(lxchen@yic.ac.cn) ; Wang, Xiaoyan(wangxy@yic.ac.cn)
英文摘要Making metal nanoparticle aggregates is a common way to improve surface-enhanced Raman scattering (SERS) enhancement via the formation of hot spots between nanoparticles. Here, we propose a "freeze-thaw-ultra-sonication" method to obtain stable colloidal Ag nano-aggregates (AgNAs) with controllable sizes, which can remain stable for a few days. Compared with other method using aggregation reagents (e.g., organic molecules and salt), this method can maintain metal surface charges and adsorption affinity, which ensures the excellent SERS stability and sensitivity. The SERS detection window during the experiment can reach more than 25 min, which makes it a prerequisite for accurate SERS detection during a long-time range. Combining the obtained stable AgNAs with microfluidic devices, we established a sequential SERS on-line continuous detection method for the high-throughput detection of multiplex samples. The UV-Fenton degradation process of methylene blue (MB) is continuously on-line monitored through this platform, which is more sensitive than the UV-Vis Spec-trum. Moreover, we have realized the sensitive and accurate detection of 5-nitro-8-hydroxyquinoline (5-NQ) with antibacterial and anticancer activities based on chloride-functionalized silver, which paved a way for SERS high-throughput analysis in bioanalysis and other fields.
WOS关键词ENHANCED RAMAN-SCATTERING ; SINGLE-MOLECULE ; HOT-SPOTS ; NANOPARTICLES ; SPECTROSCOPY ; FENTON ; NANOMATERIALS ; DEGRADATION ; NITROXOLINE ; ARRAYS
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000991815300001
资助机构National Natural Science Foundation of China ; Key Deployment Project of Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences ; Taishan Scholars Program ; Special Fund for the Scholar Program of Yantai
源URL[http://ir.yic.ac.cn/handle/133337/32908]  
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
烟台海岸带研究所_山东省海岸带环境工程技术研究中心
通讯作者Zhang, Zhiyang; Chen, Lingxin; Wang, Xiaoyan
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Yantai Univ, Sch Chem & Chem Engn, Yantai 264005, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Res Ctr Coastal Environm Engn & Technol, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
5.Binzhou Med Univ, Sch Pharm, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714		 Cheng, Jianxia,Zhang, Zhiyang,Zhang, Longfei,et al. Size-controllable colloidal Ag nano-aggregates with long-time SERS detection window for on-line high-throughput detection[J]. TALANTA,2023,257:8.
APA Cheng, Jianxia.,Zhang, Zhiyang.,Zhang, Longfei.,Miao, Jiaqi.,Chen, Yan.,...&Wang, Xiaoyan.(2023).Size-controllable colloidal Ag nano-aggregates with long-time SERS detection window for on-line high-throughput detection.TALANTA,257,8.
MLA Cheng, Jianxia,et al."Size-controllable colloidal Ag nano-aggregates with long-time SERS detection window for on-line high-throughput detection".TALANTA 257(2023):8.

入库方式： OAI收割

来源：烟台海岸带研究所

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