Noninvasive Glucose Monitoring with a Contact Lens and Smartphone

Noninvasive continuous monitoring of physiological glucose using a monosaccharide-sensing contact lens.

We have tested the feasibility of tear glucose sensing using a daily, disposable contact lens embedded with boronic acid-containing fluorophores as a potential alternative to current invasive glucose-monitoring techniques. Our findings show that our approach may, indeed, be suitable for the continuous monitoring of tear glucose levels in the range 50-500 microM, which track blood glucose levels...

A Glucose sensing contact lens: A new approach to non-invasive continuous physiological glucose monitoring

We have developed a new technology for the non-invasive continuous monitoring of tear glucose using a daily use, disposable contact lens, embedded with sugar-sensing boronic acid containing fluorophores. Our findings show that our approach may be suitable for the continuous monitoring of tear glucose levels in the range 50 – 500 μM, which track blood glucose levels that are typically ≈ 5-10 fol...

A 3-µW CMOS Glucose Sensor for Wireless Contact-Lens Tear Glucose Monitoring

This paper presents a noninvasive wireless sensor platform for continuous health monitoring. The sensor system integrates a loop antenna, wireless sensor interface chip, and glucose sensor on a polymer substrate. The IC consists of power management, readout circuitry, wireless communication interface, LED driver, and energy storage capacitors in a 0.36-mm CMOS chip with no external components. ...

Noninvasive glucose monitoring: a novel approach.

BACKGROUND The main concern in noninvasive (NI) glucose measurement is achieving high accuracy readings, although no blood (or other fluid) is involved in the process. Using methods based on different physical properties of a measured object can ensure the independence of each of the readings and therefore improve the validity of the end result. By using a combination of (three) independent tec...

Uh Engineers Invent Glucose-sensing Contact Lens