A Review of Biochemical Gas Sensor for Medical and Health Science

Abstract

Various volatile substances associated with disorders are released from human bodies. In order to utilize them as biomarkers of related diseases, a highly sensitive and highly selective method for gas measurement is strongly requested. Biochemical gas sensors (bio-sniffer) that use biochemical reaction of enzyme have been developed and tested in biomedical applications. Owing to the specific activity of enzyme, the bio-sniffer provides high-sensitivity and high-selectivity with a relatively simplified system. This paper reports on the current status of bio-sniffer development and applications to medical and healthcare fields.