A single light spot GC detector employing localized surface plasmon resonance of porous Au@SiO nanoparticle multilayer.

This paper describes the synthesis of a nano-porous multilayered film consisting of Au@SiO nanoparticles. This film was used to miniaturize the size of a localized surface plasmon resonance (LSPR)-based capillary gas chromatograph (GC) detector. A layer-by-layer (LbL) approach with proper surface reaction sequences was used to create a multilayer structure that consisted of as many as five layers of Au@SiO nanoparticles.