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Wetter report: New approach to testing surface adhesion

With a nod to one of nature's best surface chemists - an obscure desert beetle - polymer scientists have devised a convenient way to construct test surfaces with a variable affinity for water, so that the same surface can range from superhydrophilic to superhydrophobic, and everything in between.

Posted: May 11th, 2007

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DNA sieve: nanoscale pores can be tiny analysis labs

Imagine being able to rapidly identify tiny biological molecules such as DNA and toxins using a system that can fit on a microchip or in a drop of salt water. It’s closer than you might think, say a team of researchers.

Posted: May 10th, 2007

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