Fig. 3.

Typical results of the UV-V is spectroscopic results and particle size analysis results of SA-AuNP before and after virus incubation. UV-Vis absorption spectra measured at 0, 0.5, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, and 12 min after the addition of 1.25 vol% influenza B/Victoria . (a) Typical UV-Vis spectral change of SA-AuNP solution after the addition of the virus, (b) change of OD₆₁₀ over time, (c) particle size analysis result measured before the virus addition, and (d) particle size analysis result measured after the addition of 1.25 vol% influenza B/Victoria