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Reproducible and Sensitive Plasmonic Sensing Platforms Based on Au-Nanoparticle-Internalized Nanodimpled Substrates

文献类型：期刊论文

作者Dang, Hajun4; Park, Sung-Gyu3; Wu, Yixuan4; Choi, Namhyun4; Yang, Jun-Yeong3; Lee, Seunghun3; Joo, Sang-Woo2; Chen, Lingxin1; Choo, Jaebum4
刊名ADVANCED FUNCTIONAL MATERIALS
出版日期2021-07-28
页码10
关键词electromagnetic enhancement nanodimpled substrate nanogaps plasmonic coupling surface-enhanced Raman scattering
ISSN号1616-301X
DOI10.1002/adfm.202105703
通讯作者Joo, Sang-Woo(sjoo@ssu.ac.kr) ; Chen, Lingxin(lxchen@yic.ac.cn) ; Choo, Jaebum(jbchoo@cau.ac.kr)
英文摘要Electromagnetic enhancement effects through localized surface plasmon resonance considerably amplify the intensity of incident light when molecules are positioned in the vicinity of miniscule nanogaps. The aggregation of plasmonic nanoparticles synthesized using bottom-up methods has been extensively used to generate hot spots in solutions. These methods assist in obtaining non-periodic plasmonic signals, because the realization of uniform nanogaps through particle aggregation is difficult. Nanostructured substrates with gaps of 20-100 nm have also been fabricated using the top-down approach. However, the fabrication of smaller nanogap templates using these methods is difficult owing to high costs and low throughput. Therefore, a nanodimple array internalized with AuNPs is developed in this study to mitigate the challenges encountered in the bottom-up and top-down approaches. Precise nanogaps are generated by regularly internalizing AuNPs in the cavities of nanodimples through DNA hybridization. Simulations of the electric field distribution indicate that the incorporation of 80 nm-sized AuNPs into a curved nanodimpled Au substrate generate high-density volumetric hot spots within a detection volume, and result in a high plasmonic enhancement factor of 8.25 x 10(7). The tremendous potential of the proposed plasmonic platform as an SERS-based biomedical diagnostic device is also verified.
WOS关键词NANOSTRUCTURES ; SIZE
资助项目National Research Foundation of Korea[2019R1A2C3004375] ; National Research Foundation of Korea[2020R1A5A1018052] ; Korean Institute of Materials Science (KIMS)[PNK 7440] ; MOTIE[20012405] ; National Nature Science Foundation of China[21976209] ; Taishan Scholar Project Special Funding[ts20190962]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000678058300001
资助机构National Research Foundation of Korea ; Korean Institute of Materials Science (KIMS) ; MOTIE ; National Nature Science Foundation of China ; Taishan Scholar Project Special Funding
源URL[http://ir.yic.ac.cn/handle/133337/29533]  
专题烟台海岸带研究所_山东省海岸带环境工程技术研究中心
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Joo, Sang-Woo; Chen, Lingxin; Choo, Jaebum
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
2.Soongsil Univ, Dept Chem, Seoul 06978, South Korea
3.Korea Inst Mat Sci KIMS, Nanobio Convergence Dept, Chang Won 51508, South Korea
4.Chung Ang Univ, Dept Chem, Seoul 06974, South Korea
推荐引用方式
GB/T 7714		 Dang, Hajun,Park, Sung-Gyu,Wu, Yixuan,et al. Reproducible and Sensitive Plasmonic Sensing Platforms Based on Au-Nanoparticle-Internalized Nanodimpled Substrates[J]. ADVANCED FUNCTIONAL MATERIALS,2021:10.
APA Dang, Hajun.,Park, Sung-Gyu.,Wu, Yixuan.,Choi, Namhyun.,Yang, Jun-Yeong.,...&Choo, Jaebum.(2021).Reproducible and Sensitive Plasmonic Sensing Platforms Based on Au-Nanoparticle-Internalized Nanodimpled Substrates.ADVANCED FUNCTIONAL MATERIALS,10.
MLA Dang, Hajun,et al."Reproducible and Sensitive Plasmonic Sensing Platforms Based on Au-Nanoparticle-Internalized Nanodimpled Substrates".ADVANCED FUNCTIONAL MATERIALS (2021):10.

入库方式： OAI收割

来源：烟台海岸带研究所

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