Integrating biosensors to contact lenses might seems impossible but not for the research team at Oregon State University. The integration may help us to track pharmacokinetics and non-invasive glucose testing.

We may be familiar with the traditional technique of glucose testing by injecting a small needle into our finger, called lancet, drawing a small drop of blood before applying it to a test strip. However, those who work in medical devices industry and diagnostics strives to bring the cutting-edge technology that may improve the way we understand complex clinical compounds.

By integrating indium gallium zinc oxide (IGZO) technology in field effect transistors into a transparent film, it will stimulate the enzyme to react with the glucose. As the pH surrounding the field-effect transistors changes, it stimulates change the current flow as well. The breaking down of glucose oxidase affects the pH levels, then the transistors will produce a result of the concentration surrounding the glucose.

The research team believes that the device will be useful to track other biomarkers. The implementation of the technology can also be applied to all kinds of implants, instruments and devices that interact with the body. Although the device might not be ready for the public the innovation might enhance the way we understand our health condition.

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