Optofluidic SERS Sensing from Photonic Crystal-Plasmonic Mesocapsules

摘要

We synthesized hybrid photonic crystal-plasmonic mesocapsules using diatom biosilica with in-situ growth silver nanoparticles. The mesocapsules achieved near single-molecule sensitivity for optofluidic SERS sensing with five orders of magnitude higher than colloidal nanoparticles.