What Are Surface Plasmon Resonance (SPR) and Its Applications?
Surface Plasmon Resonance (SPR) is a phenomenon that occurs when light induces electron oscillations at the surface of a metal nanoparticle. This results in a strong enhancement of the electromagnetic field at the nanoparticle surface. SPR is utilized in biosensing, where changes in the refractive index near the nanoparticle surface can indicate molecular binding events, making it a powerful tool for detecting biological interactions.
