Controlling Silica Shell Thickness to Prevent Fluorescence Quenching on Silver Cores
Fluorescence-based detection platforms require high signal-to-noise ratios to quantify trace chemical and biological targets. Silver nanoparticles provide the highest scattering and absorption cross-sections among noble metals across visible wavelengths. Coupling fluorophores directly to bare silver surfaces causes non-radiative energy transfer that extinguishes photon emission. Engineers resolve this optical loss by establishing a rigid dielectric spacer […]
