NDLI: Sensitive protein detection using an optical fibre long period grating sensor anchored with silica core gold shell nanoparticles

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Sensitive protein detection using an optical fibre long period grating sensor anchored with silica core gold shell nanoparticles

Content Provider	Semantic Scholar
Author	Marques, Leonel Korposh, Sergiy Clark, Matt Morgan, Steven
Copyright Year	2014
Abstract	An optical fibre long period grating (LPG), modified with a coating of silica gold (SiO2:Au) core/shell nanoparticles (NPs) deposited using the layer-by-layer (LbL) method, was employed for the development of a bio-sensor. The SiO2:Au NPs were electrostatically assembled onto the LPG with the aid of a poly(hydrochloride ammonium) (PAH) polycation layer. The LPG sensor operates at the phase matching turning point to provide the highest sensitivity. The SiO2:Au NPs were modified with biotin, which was used as a ligand for streptavidin (SV) detection. The sensing mechanism is based on the measurement of the refractive index change induced by the binding of the SV to the biotin. The lowest detected concentration of SV was 19 nM using an LPG modified with a 3 layer (PAH/SiO2:Au) thin film.
File Format	PDF HTM / HTML
Alternate Webpage(s)	https://dspace.lib.cranfield.ac.uk/bitstream/handle/1826/10836/Sensitive_protein_detection_using_an_optical_fibre_long_period_grating_sensor_anchored_with_silica_core_gold_shell_nanoparticles_2014.pdf;jsessionid=F3AF256EFE54F8488C69CE6A3539C5AB?sequence=1
Language	English
Access Restriction	Open
Subject Keyword	3D film Ammonium ion:SCnc:Pt:Plas:Qn Artificial nanoparticles Biotin British Informatics Olympiad Coating Excipient Ligands National Land and Property Gazetteer Optical fiber Polycyclic Hydrocarbons, Aromatic Sensor Streptavidin SystemVerilog Thickness (graph theory)
Content Type	Text
Resource Type	Article

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