DEVICE AND METHOD FOR ON-CHIP CHEMICAL SEPARATION AND DETECTION
申请人:Wang Alan X.
公开号:US20190072493A1
公开(公告)日:2019-03-07
Microfluidic diatomaceous earth analytical devices (μDADs) comprising highly porous photonic crystal biosilica channels are disclosed. The μDADs can simultaneously perform on-chip chromatography to separate small molecules from complex samples and acquire the surface-enhanced Raman scattering spectra of the target chemicals with high specificity. The ultra-small dimensions of the diatomaceous earth microfluidic channels and the photonic crystal effect from the fossilized diatom frustules allow unprecedented sensitivity down to ppb-level.