Describes the general design of Microbiosensors for determination of glucose in blood sample for medical purpose as an important branch of medical analysis instrument discusses the fabrication of microbiosensors. By t...Describes the general design of Microbiosensors for determination of glucose in blood sample for medical purpose as an important branch of medical analysis instrument discusses the fabrication of microbiosensors. By the technology of microfabrication, self assembled monolayers (SAMs) and enzyme immobilization, stresses their properties, such as improvement in system efficiency, shorter analysis time reduction of reagent waste and reduction of device sizes, which makes them suitable for bed side monitor of emergency patients.展开更多
The self-made high sensitivity and selectivity micro-biosensor was applied to monitor the change of dopamine in cerebral nucleus in rats in vivo. The micro-biosensor was prepared and used to detect dopamine level in v...The self-made high sensitivity and selectivity micro-biosensor was applied to monitor the change of dopamine in cerebral nucleus in rats in vivo. The micro-biosensor was prepared and used to detect dopamine level in vitro and monitor the dynamic change of dopamine in different cerebral nucleus in vivo. The results showed the lowest concentration of dopamine that could be detected by the biosensor was 32.5 nmol/L. Its positive peak was significantly different from that of AA, 5-HTP and E. The biosensor could keep working for monitoring the dopamine concentration in the cerebral tissue for more than 10 h. It was concluded that the microsensor has high sensitivity and selectivity to dopamine and can be used to dynamically monitor the change of dopamine in vivo.展开更多
文摘Describes the general design of Microbiosensors for determination of glucose in blood sample for medical purpose as an important branch of medical analysis instrument discusses the fabrication of microbiosensors. By the technology of microfabrication, self assembled monolayers (SAMs) and enzyme immobilization, stresses their properties, such as improvement in system efficiency, shorter analysis time reduction of reagent waste and reduction of device sizes, which makes them suitable for bed side monitor of emergency patients.
文摘The self-made high sensitivity and selectivity micro-biosensor was applied to monitor the change of dopamine in cerebral nucleus in rats in vivo. The micro-biosensor was prepared and used to detect dopamine level in vitro and monitor the dynamic change of dopamine in different cerebral nucleus in vivo. The results showed the lowest concentration of dopamine that could be detected by the biosensor was 32.5 nmol/L. Its positive peak was significantly different from that of AA, 5-HTP and E. The biosensor could keep working for monitoring the dopamine concentration in the cerebral tissue for more than 10 h. It was concluded that the microsensor has high sensitivity and selectivity to dopamine and can be used to dynamically monitor the change of dopamine in vivo.
