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A virus-gold nanoparticle (AuNP) composite film was prepared through the layer-by-layer assembly of cationic filamentous virus (M13 phage) particles (displaying a positively charged peptide on the major coat) and anionic spherical AuNPs. The surface plasmon resonance (SPR) for AuNPs in the virus-nanoparticle nanocomposite films was found to be sensitive to the environmental humidity. In air, both...
We have constructed a piezoelectric sensor matrix with the capability of measuring the flexibility of immunoglobulin. The matrix consisted of 6 independent quartz crystal microbalance (QCM) coated with gold nanoparticles (GNP) of 3.5, 5, 12, 17, and 37 nm, and BSA. The detection was performed simultaneously. Antiserum against GNP bound to QCMs coated with 3.5 nm GNP and maximized for 5 nm GNP-coated...
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