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

doi:10.1016/j.talanta.2023.124358

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室

	Size-controllable colloidal Ag nano-aggregates with long-time SERS detection window for on-line high-throughput detection
	Cheng, Jianxia 5; Zhang, Zhiyang 3,4; Zhang, Longfei 2; Miao, Jiaqi 5; Chen, Yan 1,4; Zhao, Rongfang 4; Liu, Meichun 1,4; Chen, Lingxin 3,4,5; Wang, Xiaoyan 5
刊名	TALANTA
	2023-05-15
卷号	257 页码:8
关键词	Silver nano-aggregates SERS Freeze-thaw Ultrasonication High-throughput On-line detection
ISSN号	0039-9140
DOI	10.1016/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
内容类型	期刊论文
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
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.