Biochip measures glucose in saliva, not blood

For the 26 million Americans with diabetes, drawing blood is the most prevalent way to check glucose levels. It is invasive and at least minimally painful. Researchers at Brown University are working on a new sensor that ...

When will artificial molecular machines start working for us?

Physicist Richard Feynman in his famous 1959 talk, "Plenty of Room at the Bottom," described the precise control at the atomic level promised by molecular machines of the future. More than 50 years later, synthetic molecular ...

Tiny technology may yield major finds -- and possible perils

Imagine a particle so small it would take a million of them to stretch across the period at the end of this sentence. Imagine such particles could help catch cancer cells floating in your bloodstream before they could metastasize ...

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