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Determination of sulfide in complex biofilm matrices using silver-coated, 4-mercaptobenzonitrile-modified gold nanoparticles, encapsulated in ZIF-8 as surface-enhanced Raman scattering nanoprobe

文献类型：期刊论文

作者He, Junxian1,2,3; Qi, Peng1,2; Zhang, Dun1,2; Zeng, Yan1,2; Zhao, Ping3; Wang, Peng1,2
刊名MICROCHIMICA ACTA
出版日期2023-12-01
卷号190期号:12页码:11
关键词Sulfide SERS Nanoprobe Biofilm Microbiologically induced corrosion
ISSN号0026-3672
DOI10.1007/s00604-023-06071-9
通讯作者Qi, Peng(qipeng@qdio.ac.cn) ; Zhao, Ping(zhaoping1986711@163.com) ; Wang, Peng(wangpeng@qdio.ac.cn)
英文摘要A surface-enhanced Raman scattering nanoprobe has been developed for sulfide detection and applied to complex bacterial biofilms. The nanoprobe, Au@4-MBN@Ag@ZIF-8, comprised a gold core modified with 4-mercaptobenzonitrile (4-MBN) as signaling source, a layer of silver shell as the sulfide sensitization material, and a zeolitic imidazolate framework-8 (ZIF-8) as surface barrier. ZIF-8, with its high surface area and mesoporous structure, was applied to preconcentrate sulfide around the nanoprobe with its excellent adsorption capacity. Besides, the external wrapping of ZIF-8 can not only prevent the interference of biomolecules, such as proteins, with the Au@4-MBN@Ag assay but also enhance the detection specificity through the sulfide cleavage function towards ZIF-8. These properties are critical for the application of this nanoprobe to complex environmental scenarios. In the presence of sulfide, it was first enriched through adsorption by the outer ZIF-8 layer, then destroyed the barrier layer, and subsequently reacted with the Ag shell, leading to changes in the Raman signal. Through this rational design, the Au@4-MBN@Ag@ZIF-8 nanoprobe exhibited excellent detection sensitivity, with a sulfide detection limit in the nanomolar range and strong linearity in the concentration range 50 nM to 500 mu M. Furthermore, the proposed Au@4-MBN@Ag@ZIF-8 nanoprobe was effectively utilized for sulfide detection in intricate biofilm matrices, demonstrating its robust selectivity and reproducibility.
WOS关键词METAL-ORGANIC FRAMEWORKS ; SPECTROSCOPY SERS
资助项目National Natural Science Foundation of China[42376208] ; National Natural Science Foundation of China[41922040] ; Natural Science Foundation Project of Shandong Province[ZR2020ME009]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:001296935400012
出版者SPRINGER WIEN
源URL[http://ir.qdio.ac.cn/handle/337002/199288]  
专题海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者Qi, Peng; Zhao, Ping; Wang, Peng
作者单位1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
3.Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Qingdao 266042, Peoples R China
推荐引用方式
GB/T 7714		 He, Junxian,Qi, Peng,Zhang, Dun,et al. Determination of sulfide in complex biofilm matrices using silver-coated, 4-mercaptobenzonitrile-modified gold nanoparticles, encapsulated in ZIF-8 as surface-enhanced Raman scattering nanoprobe[J]. MICROCHIMICA ACTA,2023,190(12):11.
APA He, Junxian,Qi, Peng,Zhang, Dun,Zeng, Yan,Zhao, Ping,&Wang, Peng.(2023).Determination of sulfide in complex biofilm matrices using silver-coated, 4-mercaptobenzonitrile-modified gold nanoparticles, encapsulated in ZIF-8 as surface-enhanced Raman scattering nanoprobe.MICROCHIMICA ACTA,190(12),11.
MLA He, Junxian,et al."Determination of sulfide in complex biofilm matrices using silver-coated, 4-mercaptobenzonitrile-modified gold nanoparticles, encapsulated in ZIF-8 as surface-enhanced Raman scattering nanoprobe".MICROCHIMICA ACTA 190.12(2023):11.

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来源：海洋研究所

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