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Title: Synthesis of carboxyl-capped and bright YVO{sub 4}:Eu,Bi nanoparticles and their applications in immunochromatographic test strip assay

Graphical abstract: - Highlights: • The morphology and properties of YVO{sub 4}:Eu,Bi nanoparticles were investigated. • YVO{sub 4}:Eu,Bi were coupled with IgG for bioprobes due to their good properties. • YVO{sub 4}:Eu,Bi were applied to immunochromatographic test strip assay. - Abstract: Carboxyl-capped YVO{sub 4}:Eu,Bi nanoparticles with average diameter of ∼10 nm were synthesized via a copolymer of phosphono and carboxylic acid mediated hydrothermal method. Under a 350 nm ultraviolet light excitation, the YVO{sub 4}:Eu,Bi NPs exhibit sharp and bright red emission peaked at 615 nm and with highest quantum yield of ∼43%. Furthermore, the nanoparticles show good water/buffer stability and feasible bioconjugation benefiting from the carboxylic groups on their surface. Based on these kind optical and surface properties of the YVO{sub 4}:Eu,Bi nanoparticles, an immunochromatographic test strip assay for quantitative determination of human IgG was achieved. This protocol can be extended to other rare-earth nanoparticles with the purpose of developing bioprobes for desired applications.
Authors:
; ; ; ; ;  [1] ;  [1] ;  [2]
  1. Key Laboratory of Acoustic and Photonic Materials and Devices of Ministry of Education, Department of Physics, Wuhan University, Wuhan 430072 (China)
  2. Department of Chemical and Environmental Engineering, Hubei University of Technology, Wuhan 430068 (China)
Publication Date:
OSTI Identifier:
22285181
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 48; Journal Issue: 11; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CARBOXYLIC ACIDS; COPOLYMERS; HYDROTHERMAL SYNTHESIS; NANOSTRUCTURES; OPTICAL PROPERTIES; PARTICLES; RARE EARTHS; SURFACE PROPERTIES; ULTRAVIOLET RADIATION; VANADATES