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Spectroscopy and the Holy Grail

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Researchers have long pursued a noninvasive way to measure blood glucose. With spectroscopy a significant contender, we asked three experts about the advantages it presents and the obstacles it faces.

MARCIA STAMELL, ASSOCIATE MANAGING EDITOR, marcia.stamell @photonics.com

For more than 30 years, scientists have sought a reliable noninvasive method to monitor blood sugar — for good reason. Invasive testing requires taking blood samples, either through blood draws at the lab or, for known diabetics, testing at home through frequent fingertip lancing. Over the years, the lancing devices have become smaller and the meters and test strips that analyze blood samples at home easier to use. But the fact remains: Testing for blood sugar is painful and inconvenient. Nor can these invasive methods, which give point-in-time measurements, yield the continuous...Read full article

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