Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
867098 | Biosensors and Bioelectronics | 2013 | 6 Pages |
Abstract
Sialic acid reduced and stabilized gold nanoparticles (d=20.1±1.8 nm) were synthesized by a simple one-pot, green method without chemically modifying sialic acid for colorimetric detection of influenza virus. The gold nanoparticles showed target-specific aggregation with viral particles via hemagglutinin–sialic acid binding. A linear correlation was observed between the change in optical density and dilution of chemically inactivated influenza B/Victoria and influenza B/Yamagata. Virus dilution (hemagglutination assay titer, 512) of 0.156 vol% was readily detected. The upper limit of the linearity can be extended with the use of more sialic acid–gold nanoparticles.
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Authors
Changwon Lee, Marsha A. Gaston, Alison A. Weiss, Peng Zhang,