Abstract by Evan Dodson
Physics and Astronomy
Using Bioimpedance in a Wearable Device to Monitor Glucose
Current reliable methods for monitoring of glucose available to diabetics are limited to invasive techniques in order to gain physical access to the blood and must be repeated regularly. A non-invasive method for monitoring glucose by continuously measuring the impedance of blood through skin can eliminate the need for constant pin-pricks. Integrating a bioimpedance measurement system into a wearable device on the wrist could offer similar levels of ease that current smart watches have in measuring biomarkers. By injecting a range of oscillating voltages, a frequency spectrum of impendances can be generated which could be computationally analyzed to determine glucose levels of the artery. Current obstacles to this method are the low signal-to-noise ratio caused by impedance components of the wrist besides the artery and creating a system which can conform to the skin and interface with other electrical systems. Our group is looking to design a system which can generate a better signal by using electrodes with high aspect ratio using carbon nanotubes and flexible circuit components which can conform with the skin and provide connections to other devices.