Microfabricated substrates for spectroscopy and separation

摘要

In this paper, we report the preliminary results from a microfabricated substrate system that is amenable to both electromagnetic field-enhanced spectroscopy such as surface enhanced Raman scattering (SERS) and analyte separation and detection. Substrates consisting of arrays of gold post-like and pit-like features of varying pitch on gold substrates were fabricated by electron beam lithography. These substrates were characterized and tested for reproducible SERS activity, as well as evaluated for incorporation into a microfluidic system for separation and identification of components of complex matrices. Identification of analytes relevant to biodetection and biological screening is reported.