A survey on non-invasive blood glucose monitoring using NIR

Diabetes is considered as one of the major contributors of precipitate infirmity and death in non-contagious diseases. Prevailing method for determination of blood glucose concentration is using a self-monitoring glucose meter. This process involves pricking the finger and extracting the blood from the forearm and doing the chemical analysis with the help of disposable test strips. The ache, throe and difficulty caused by this technique have lead to the development of a noninvasive method of measurement based on the survey conducted. This technique makes use of a near infrared sensor for transmission and reception of rays from fingertip. Near-infrared (NIR) is sent through the fingertip, before and after occluding the blood flow. By analyzing the variation in received signal intensity obtained after reflection in both the cases, glucose present in blood can be predicted and wirelessly transmitted to a remote PC.