Dang, Hajun1; Park, Sung-Gyu2; Wu, Yixuan1; Choi, Namhyun1; Yang, Jun-Yeong2; Lee, Seunghun2; Joo, Sang-Woo3; Chen, Lingxin4
; Choo, Jaebum1发表期刊ADVANCED FUNCTIONAL MATERIALS
ISSN1616-301X
2021-07-28
页码10
关键词electromagnetic enhancementnanodimpled substratenanogapsplasmonic couplingsurface-enhanced Raman scattering
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.
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
收录类别SCI
语种英语
关键词[WOS]NANOSTRUCTURES; SIZE
研究领域[WOS]Chemistry; Science & Technology - Other Topics; Materials Science; Physics
WOS记录号WOS:000678058300001
引用统计被引频次：5[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/29534
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境工程技术研究与发展中心
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.Chung Ang Univ, Dept Chem, Seoul 06974, South Korea
2.Korea Inst Mat Sci KIMS, Nanobio Convergence Dept, Chang Won 51508, South Korea
3.Soongsil Univ, Dept Chem, Seoul 06978, South Korea
4.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China
推荐引用方式
GB/T 7714Dang, 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.
APADang, 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.
MLADang, Hajun,et al."Reproducible and Sensitive Plasmonic Sensing Platforms Based on Au-Nanoparticle-Internalized Nanodimpled Substrates".ADVANCED FUNCTIONAL MATERIALS (2021):10.
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