Non Invasive Blood Glucose Level Detection

This paper describes a non-invasive technique to efficiently monitor blood glucose level without puncturing the skin. About 500 million individuals worldwide and 50 million people in India suffer from this rapidly expanding condition. Through physical activity, a healthy diet and medication, all diabetes-related issues can be lowered. The present intrusive procedure is uncomfortable and unpleasant because users must prick their finger to draw blood for the daily monitoring of blood glucose concentration; as a result, it is not suggested for lifelong use. Due to the lack of glucose measurement machines and the high cost of the procedures, people who live in rural areas and are economically underprivileged do not have access to facilities for routinely checking their blood sugar levels. The 940 nm wavelength has been found to be more accurate at detecting glucose levels. Employing near-infrared spectroscopy, the light passes through the skin which interacts with the chemical constituents of the illuminated tissue to partially absorb and disperse the light. Before reaching optical detectors, light that is not absorbed will be reflected out of the tissue or transmitted through it. So this paper proposes an alternate non-invasive method which is based on the scattering property of the skin.