A differential dielectric affinity glucose sensor

A Microfabricated Dielectric Affinity Sensor for Continuous Glucose Monitoring

We present a microfabricated affinity sensor using permittivity measurement for continuous glucose monitoring (CGM). This device is based on a perforated electrode separated from a bottom electrode on a substrate by a solution of a synthetic glucose-sensitive polymer. Glucose permeates through the perforated electrode and binds with the polymer, leading to a change in the polymer solution permi...

A Dielectric Affinity Microbiosensor

A Mems Affinity Glucose Sensor Using Permittivity Measurements

We present a MEMS affinity glucose sensor using permittivity measurements. This device employs a biocompatible glucose-specific polymer as the sensing solution. By introducing the polymer solution between two electrodes, the permittivity of the polymer solution can be measured from the capacitance changes induced by glucose binding. We characterize the frequency-dependent complex permittivity a...

A fiber optic sensor for measuring glucose in aqueous solutions

In this paper, the set-up of a multi-mode fiber optic sensor for measuring glucose in aqueous solutions is investigated and evaluated. The basis of this sensor is based on the Fresnel Reflection. In this setup, a helium-neon laser is used as a light source, a fiber optic probe, photocell as detector and a digital multimeter. The statistical analysis of the recorded data shows a highly linear be...

A viscosity-dependent affinity sensor for continuous monitoring of glucose in biological fluids.

We present a viscometric affinity biosensor for continuous monitoring of glucose in biological fluids such as blood and plasma. The sensing principle of this chemico-mechanical sensor is based upon the viscosity variation of a sensitive fluid with glucose concentration. Basically, this device includes both an actuating and a sensing piezoelectric diaphragms as well as a flow-resistive microchan...