Saliva Sensor on Collagen Based Film to Detect Blood Sugar Level

Saliva is been increasingly observed as an attractive diagnostic fluid. This paper demonstrates one of the application of saliva in detecting blood glucose level. Though many different methods had been identified to measure blood glucose level this method particularly concentrated on salivary resistance of both diabetes and healthy person (Before and after fasting). A biological sensing element which is saliva based collagen from tannery solid waste is characterized for many bio sensing applications such as blood sugar level, harmone level (cortisol), cancer biomarkers……etc. The collagen thin film sheet was prepared from chrome shavings which is used as a substrate for identification of salivary resistance. Saliva(1μl) had been placed in contact with multimeter electrode on the collagen substrate where the transformation of biological response to an electrical signal displays the value on multimer digital screen. The value on the digital display has been related to find blood sugar level of every individual. After measuring under wet condition it's been air dried to measure under dry condition. Likewise procedure is been repeated under different concentration of oral fluid henceforth its resistance value has been recorded.