Bio-sniffers and Sniff-cam based on human disease and metabolism for gaseous chemicals

Abstract

Bio-sniffers for gaseous chemicals (trimethylamine, methyl mercaptan, formaldehyde, ethanol, etc.) have been developed with metabolizing enzymes as chemical recognition protein. The sniff devices could monitor the concentration change of the gas-phase chemical with high selectivity because of enzyme specificity. Novel optical approach (Sniff-cam) allows to visualize the spatio-temporal concentration change of chemical vapor such as body odor, wine ethanol.