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17 May 2011 Development and sensitivity studies of a gold nanorod platform for a localized surface plasmon resonance based optical fibre biosensor
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Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 775311 (2011) https://doi.org/10.1117/12.885922
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada
Abstract
A localized surface plasmon resonance (LSPR) based optical fibre sensor using gold nanorods has been demonstrated, showing a much higher sensitivity to the refractive index change surrounding the sensing area than that using gold nanoparticles. In this work, a novel method has been employed to improve gold nanorod synthesis and immobilization on the exposed surface area of an optical fibre core intended for sensor use. The device sensitivity, measured as a function of the refractive index change, was found to be around 778nm/RIU (RIU=Refractive Index Unit), showing considerable promise to be a better platform for label-free biosensors, monitoring the interaction between antibodies and their antigens in a number of sensing applications in industry.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. Cao, E. Galbraith, T. Sun, and K. T. V. Grattan "Development and sensitivity studies of a gold nanorod platform for a localized surface plasmon resonance based optical fibre biosensor", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 775311 (17 May 2011); https://doi.org/10.1117/12.885922
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