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Development of an optical fibre-based plasmonic sensor for specific detection of target biomolecules

Date
2024
Abstract
We report on the development of an optical fibre-based plasmonic sensing platform for specific detection of target biomolecules. The sensing platform uses a U-bent optical fibre covered with a monolayer of chemically synthesized triangular nanoprisms-shaped gold nanoparticles. The sensor relies on the refractive index dependent shift of the surface plasmon resonance (SPR) wavelength of the nanoparticles upon binding with the target molecules. The chemical fabrication process was optimized to tune the SPR wavelength of the nanoparticles to NIR wavelengths for optimized refractive index sensitivity. The nanoprisms were deposited on the fibre via directly dip-coating in nanoparticle solution. A portable CCD-spectrometer was used to measure the SPR wavelength shift.
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Description
Publisher
University of Limerick
Citation
20th Sensors and Their Applications Conference, 2024, Paper No: 46
Collections
20th Sensors & Their Applications Conference
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Paper_46.pdf
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Keywords
biomolecules, surface plasmon resonance (SPR), Engineering
ULRR Identifiers
https://doi.org/10.34961/researchrepository-ul.29291108
 https://researchrepository.ul.ie/handle/10344/14811
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Funding Information
Sustainable Development Goals
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Type
Meetings and Proceedings
Rights
https://creativecommons.org/licenses/by-nc-sa/4.0/
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