Noninvasively measuring blood glucose using saliva

Self-measurement of blood glucose level is a very important aspect in monitoring the health quality of diabetic patients who require insulin therapy. Typically, a blood sample for analysis is obtained via a finger stick or other such invasive procedure. Often, this blood collecting causes physical and mental stress to the patient. For this reason, it is desirable to establish a noninvasive bloodless procedure to monitor the blood glucose level (BGL). Here, the authors discuss the correlation between BGL and saliva glucose level and then present an approach that uses an enzyme-sensor system to noninvasively measure blood glucose using saliva.