A study on non invasive sensing Techniques for blood glucose Quantification

Abstract

Diabetes Mellitus a group of metabolic diseases characterized by newlinehigh blood sugar glucose levels which result from defects in insulin newlinesecretion or action or both has been considered as one of the rapidly swelling newlinedisorders around the globe As glucose is one of the most important newlinecomponents of the human blood it is necessary to maintain correct glucose newlinelevels newlineThe Photo Acoustic technique involves sending a pulsed NIR Near newlineInfrared signals into the tissues and measuring the resulting sound waves As newlinethe NIR is projected through the tissue, it will cause local thermal expansion newlineof molecules such as glucose which in turn causes a vibration and hence newlinesound The signal is then detectable at the skin surface by a piezoelectric newlinemicrophone or transducer newline newline