We report important steps on the way to non-invasive glucose measuring.

We developed a measurement system composed of a light source, three wavelength specific detectors, and a motor that allows the thickness of the irradiated tissue to be changed in a targeted manner.

We achieved very good correlation of glucose concentration in water and transmission ratios; in addition, we could monitor blood flow dependent transmission curves.

By “marrying” the two measurements (glucose in water; blood flow dependent transmission curves) as a next and final step we hope to clear the way to non-invasive glucose measuring.