title: Real-time biochemical sensor based on Raman scattering with CMOS contact imaging.
abstract: This work presents a biochemical sensor based on Raman scattering with Complementary metal-oxide-semiconductor (CMOS) contact imaging. This biochemical optical sensor is designed for detecting the concentration of solutions. The system is built with a laser diode, an optical filter, a sample holder and a commercial CMOS sensor. The output of the system is analyzed by an image processing program. The system provides instant measurements with a resolution of 0.2 to 0.4 Mol. This low cost and easy-operated small scale system is useful in chemical, biomedical and environmental labs for quantitative bio-chemical concentration detection with results reported comparable to a highly cost commercial spectrometer.
authors.lastname: Muyun Cao
authors.lastname: Yuhua Li
authors.forename: Orly
authors.initials: O
authors.lastname: Yadid-Pecht
mesh_terms: D008670:Metals; D010087:Oxides; D012666:Semiconductors; D013059:Spectrum Analysis, Raman
chemical_list: D008670:Metals; D010087:Oxides