Optical bio-sniffer (biochemical gas sensor) for dimethyl sulfide vapor

An optical gas-sensor (bio-sniffer) for dimethyl sulfide (seaweed-odor substance) was constructed by immobilizing flavin-containing monooxygenase (FMO) to an oxygen-sensitive optical fiber. The sniffer was calibrated against gaseous DMS over the range of 10-100 ppm.