A thermal biosensor based on enzyme reaction.
Application of the thermal biosensor as analytical tool is promising due to advantages as universal, simplicity and quick response. A novel thermal biosensor based on enzyme reaction has been developed. This biosensor is a flow injection analysis system and consists of two channels with enzyme reaction column and reference column. The reference column, which is set for eliminating the unspecific heat, is inactived on special enzyme reaction of the ingredient to be detected. The special enzyme reaction takes places in the enzyme reaction column at a constant temperature realizing by a thermoelectric thermostat. Thermal sensor based on the thermoelectric module containing 127 serial BiTe-thermocouples is used to monitor the temperature difference between two streams from the enzyme reaction column and the reference column. The analytical example for dichlorvos shows that this biosensor can be used as analytical tool in medicine and biology.
Zheng
Yi-Hua
YH
Shanghai University of Science and Technology, No. 516,Jun Gong Road, 200093, Shanghai, China; College of Electromechanical Engineering, Qingdao University, Qingdao, 266071, China.
Hua
Tse-Chao
TC
Xu
Fei
F