Figure 3From: Anti-HER2 IgY antibody-functionalized single-walled carbon nanotubes for detection and selective destruction of breast cancer cells Optical properties of the HER2 IgY-SWNT complex. (A) Raman spectra. (B) UV-visible-NIR spectra at different nanotube concentrations (from top to bottom: 49.70, 33.02, 21.61 and 15.11 μg/ml). Inset shows the linear relationship of the absorption at 808 nm versus concentration (optical path = 0.3 cm).Back to article page