Odor sensor utilizing surface plasmon resonance for environmental monitoring

摘要

Odor sensor based on the surface plasmon resonance (SPR) is studied for detection of harmful gases such as ammonia and amine gases. The sensor was prepared by depositing the molecular recognition membrane on substrate coated with Au thin film using plasma chemical vapor deposition (CVD) method. It is found that the SPR sensor with acrylic acid membrane exhibited an excellent selectivity and high sensitivity for ammonia, and amine gases.