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Laser glucometer

01.11.2013

To maintain good health, people with diabetes need to constantly monitor their blood sugar levels. This can now be done with portable blood glucose meters. However, the use of these partings is associated with a number of unpleasant moments: you need to pierce your finger to take a blood sample, in addition, you have to constantly buy test strips.

A group of German researchers have developed a new, non-invasive way to measure blood sugar levels. The surface of the skin is exposed to infrared laser radiation, and with its help the sugar level is measured. According to scientists, this opens up fantastic opportunities for diabetics - now you do not need to pierce your finger and use test strips.

The new non-invasive glucometer uses photoacoustic spectroscopy to measure glucose by its absorption of infrared light. When a laser beam hits the skin, glucose molecules create a special, measurable sound that the research team calls the "glucose sweet melody." This signal allows you to detect blood sugar in seconds.

Previous attempts to use photoacoustic spectroscopy have been hampered by distortions in air pressure, temperature and humidity changes caused by contact with living skin. To get rid of these shortcomings, the development team had to apply new methods of designing the device.

The device is still experimental and must be tested and approved by regulatory authorities before it goes on sale. Meanwhile, researchers continue to improve the device. It is expected that in three years the glucometer will be about the size of a small shoe box, and even later portable versions of the meter will appear.

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