The effect of size on the surface enhanced Raman scattering property of SiO2@PDA@AgNP core-shell-satellite nanocomposite

Here we report SiO2@PDA@AgNP core-shell-satellite nanostructure as a new SERS substrate. This is prepared by in situ deposit of silver nanoparticles (AgNP) on the surface of polydopamine (PDA) coat...