Google+

Use a Laser to Check Glucose Levels

Print Friendly, PDF & Email

The GlucoSense device in use – not a finger-lance in sightThe GlucoSense device in use – not a finger-lance in sight (Credit: University of Leeds)

 

 In order to monitor their blood glucose levels, diabetics typically have to perform painful and inconvenient finger-prick blood tests – in some cases, several times a day. Using an implantable glucose-monitoring sensor is one alternative, although it must be surgically installed and subsequently removed for replacement. Another option may be on the way, however, in the form of a device that simply shines a laser on the user’s finger.

Known as GlucoSense, the system was developed by Prof. Gin Jose and his team at the University of Leeds.

To use it, patients simply place the pad of their finger against a small glass window on the device. A low-powered laser beam is then projected through that window, and into their finger. Some of that light is absorbed by glucose in the bloodstream, and some is reflected back down onto the window.

Ions on the window glass surface subsequently fluorescence in infrared when exposed to that reflected light – the more light that hits them, the longer they glow. By measuring the duration of that fluorescence, a processor in the device is able to determine how much of the original laser light was absorbed by glucose, and can thus deduce the amount of glucose in the bloodstream. The whole process takes less than 30 seconds.

Continue reading

 

About the Common Constitutionalist

Brent, aka The Common Constitutionalist, is a Constitutional Conservative, and advocates for first principles, founders original intent and enemy of progressives. He is former Navy, Martial Arts expert. As well as publisher of the Common Constitutionalist blog, he also is a contributing writer for Political Outcast, Godfather Politics, Minute Men News (Liberty Alliance), Freedom Outpost, the Daily Caller, Vision To America and Free Republic. He also writes an exclusive weekly column for World Net Daily (WND).