What Are the Unique Optical Properties of Gold Nanoparticles?
Gold nanoparticles exhibit a phenomenon known as localized surface plasmon resonance (LSPR), where conduction electrons on the nanoparticle's surface oscillate in resonance with the incident light. This results in strong absorption and scattering of light, which is highly sensitive to the size, shape, and local environment of the nanoparticles. This property is exploited in various biosensing and imaging applications.
