The final goal of this project is to produce a new device that will allow simple, non-invasive monitoring of diabetic patients, which the investigators believe will lead to a significant improvement in the quality of life of those suffering from this condition. This specific activity is supported by Boydsense, a US company whose mission is to change how chronic conditions are detected and monitored, through breath analysis. BoydSense Inc. has been created in 2015 as a subsidiary of the French company Alpha MOS. Alpha MOS is specialized in electronic systems for sensory analysis, designing and developing instruments dedicated to the measurement of odour, taste and visual aspect.