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Cited 18 time in webofscience Cited 19 time in scopus
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Three-Dimensional Plasmonic Nanocluster-Driven LightMatter Interaction for Photoluminescence Enhancement and Picomolar-Level Biosensing SCIE SCOPUS

Title
Three-Dimensional Plasmonic Nanocluster-Driven LightMatter Interaction for Photoluminescence Enhancement and Picomolar-Level Biosensing
Authors
Kim Won-GeunLee Jong-MinYang YounghwanKim HongyoonDevaraj VasanthanKim MinjunJeong HyuckChoi Eun-JungYang JihyukJang YudongBadloe TrevonLee DonghanRho JunsukKim Ji TaeOh Jin-Woo
Date Issued
2022-06
Publisher
American Chemical Society
Abstract
Plasmonic nanoparticle clusters promise to support unique engineered electromagnetic responses at optical frequencies, realizing a new concept of devices for nanophotonic applications. However, the technological challenges associated with the fabrication of three-dimensional nanoparticle clusters with programmed compositions remain unresolved. Here, we present a novel strategy for realizing heterogeneous structures that enable efficient near-field coupling between the plasmonic modes of gold nanoparticles and various other nanomaterials via a simple three-dimensional coassembly process. Quantum dots embedded in the plasmonic structures display ∼56 meV of a blue shift in the emission spectrum. The decay enhancement factor increases as the total contribution of radiative and nonradiative plasmonic modes increases. Furthermore, we demonstrate an ultracompact diagnostic platform to detect M13 viruses and their mutations from femtoliter volume, sub-100 pM analytes. This platform could pave the way toward an effective diagnosis of diverse pathogens, which is in high demand for handling pandemic situations.
URI
https://oasis.postech.ac.kr/handle/2014.oak/112933
DOI
10.1021/acs.nanolett.2c00790
ISSN
1530-6984
Article Type
Article
Citation
Nano Letters, vol. 22, no. 12, page. 4702 - 4711, 2022-06
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노준석RHO, JUNSUK
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