Architecture and front-end for in-vivo blood glucose sensor based on impedance spectroscopy

We propose a new architecture of a system for blood glucose monitoring based on impedance spectroscopy. The proposed system has been optimized to work in the frequency range 1 MHz - 200 MHz, where the best performances in terms of electrical changes in the blood can be achieved. The proposed architecture allows to acquire easily the dependence on frequency for both amplitude and phase of the dielectric constant from which the glucose levels in blood is estimated.