Studies on relating to monitoring blood glucose levels using noninvasive optical methods

According to International Diabetes Federation (IDF), India has the largest number of diabetic patients of about 50.8 million and it can be expected that by 2030 it would rise to 89 million if current unhealthy lifestyle is continued. The current method which is widely used for measuring blood glucose levels involves needles for pricking which is painful and can cause discomfort to the patient. We aim at designing a cost-effective glucometer which non-invasively measures blood glucose level using optical methods with acceptable error. After comparison of different optical methods, Near Infrared (940nm) type of measurement in reflectance mode was selected. The device was calibrated using invasive values and regression analysis was carried out for error-reduction. Arduino UNO was used for programming to quantify the glucose levels according to different conditions.