Glutamate sensor response

The construction and response of amperometric biosensors for glucose, acetylcholine, and glutamate based on these polymeric materials are described, and the dependence of sensor response on the polymer structure is discussed. 

The concentrations of glutamic acid in some fermentation broths were determined by the microbial sensor and by the Auto-analyzer method. The results were in good agreement. The response of the sensor was constant for more than 3 weeks and 1500 assays. Thus the microbial sensor appears to be very attractive for the determination of glutamic acid. 

Response curves of Bacillus subtilis- and THchosporon cutaneum-based sensors to glucose-glutamic acid standard solution containing 22 mg/L biochemical oxygen demand (BOD). Reproduced from (420] with permission from Springer-Verlag. 

Figure 8 shows a preliminary response curve for a glutamate biosensor. For this sensor, glutamate dehydrogenase has been added to the biocatalytic layer in a sensor like that shown in Figure 6. 

---