I post information about new technology that affects diabetics whenever I run across it and it always invokes a strong interest in those afflicted by the chronic disease. Diabetics are looking for the holy grail of glucose monitoring- a non-invasive way to test the glucose level. Devices reported in the past, e. g. the GlucoWatch, have never come to light and my inquiries have not met a response from the manufacturer. Hopefully a new technology recently awarded a patent by a researcher at Syracuse University will produce a commercial product that will one day be available. Professor Joseph Chaiken of Syracuse University has patented the LighTouch that uses technology based on Raman spectroscopy. From the SU press office:
The LighTouch uses a method called Raman spectroscopy to focus a laser–which Chaiken refers to as a “CD-player type of laser that has been kicked up a notch to deliver a purer red color,”–onto the fingertip and analyze the various colors of the light exiting the finger. These colors are indicative of the types and quantities of the different chemicals in the tissue being illuminated by the laser. By making two such measurements, first with the fingertip under no pressure and the second with slight pressure applied to the flesh, researchers are able to compare the measurements and analyze only those colors that come from the part of the fingertip which moves under slight pressure–the blood. The procedure is completely painless and produces results with accuracy and precision comparable to existing fingerstick devices.