Plasmonic Nanopillars-A Brief Investigation of Fabrication Techniques and Biological Applications

Nanopillars (NPs) are submicron-sized pillars composed of dielectrics, semiconductors, or metals. They have been employed to develop advanced optical components such as solar cells, light-emitting diodes, and biophotonic devices. To integrate localized surface plasmon resonance (LSPR) with NPs, plas...

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Bibliographic Details
Published in:Biosensors (Basel) 2023-05, Vol.13 (5), p.534
Main Authors: Ahn, Heesang, Kim, Soojung, Oh, Sung Suk, Park, Mihee, Kim, Seungchul, Choi, Jong-Ryul, Kim, Kyujung
Format: Article
Language:English
Subjects:
Arrays
Biomedical materials
Capping
Electromagnetism
enhanced Raman spectroscopy
Etching
Fabrication
Glass substrates
high-resolution optical imaging
Image resolution
Light
Light emitting diodes
localized surface plasmon resonance
Metal Nanoparticles - chemistry
Metals
Metals - chemistry
Nanoparticles
Optical components
Optical Imaging
optical sensing
Photovoltaic cells
plasmonic nanopillars
Plasmonics
Polymers
Raman spectroscopy
Research methodology
Review
Sensitivity enhancement
Sensors
Solar cells
Spectrum Analysis, Raman
Substrates
Surface plasmon resonance
Surface Plasmon Resonance - methods
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Summary:Nanopillars (NPs) are submicron-sized pillars composed of dielectrics, semiconductors, or metals. They have been employed to develop advanced optical components such as solar cells, light-emitting diodes, and biophotonic devices. To integrate localized surface plasmon resonance (LSPR) with NPs, plasmonic NPs consisting of dielectric nanoscale pillars with metal capping have been developed and used for plasmonic optical sensing and imaging applications. In this study, we studied plasmonic NPs in terms of their fabrication techniques and applications in biophotonics. We briefly described three methods for fabricating NPs, namely etching, nanoimprinting, and growing NPs on a substrate. Furthermore, we explored the role of metal capping in plasmonic enhancement. Then, we presented the biophotonic applications of high-sensitivity LSPR sensors, enhanced Raman spectroscopy, and high-resolution plasmonic optical imaging. After exploring plasmonic NPs, we determined that they had sufficient potential for advanced biophotonic instruments and biomedical applications.
ISSN:2079-6374
2079-6374
DOI:10.3390/bios13050534