期刊
BIOCONJUGATE CHEMISTRY
卷 20, 期 10, 页码 1848-1852出版社
AMER CHEMICAL SOC
DOI: 10.1021/bc900255x
关键词
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类别
资金
- Ministry of Education, Culture, Sports, Science and Technology
- Ministry of Health, Labor and Welfare, Japan
- Founding Research Centers for Emerging and Reemerging Infectious Diseases, MEXT, Japan
- JSPS
- Grants-in-Aid for Scientific Research [21390111] Funding Source: KAKEN
We propose a new approach to optical virus detection, based on the spatial assembly of gold nanoparticles on the surface of viruses. Since JC virus-like particles (VLPs) comprise a repeating viral capsid protein that binds to sialic acid, the conjugation of sialic acid-linked Au particles with VLPs enables the spatial arrangement of Au particles on the VLP surface. This structure produced a red shift in the absorption spectrum due to plasmon coupling between adjacent Au particles, leading to the, construction of an optical virus detection system. Our system depends not on the simple cross-linking of VLPs and Au particles, but on an ordered Au structure covering the entire surface of the VLPs and can be applied to virus detection systems using the inherent ligand recognition of animal viruses.
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