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This is Scientific American's 60-Second Tech. I'm Larry Greenemeier. Got a minute?

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A virtual cottage industry has emerged around finding innovative uses for smartphones, well beyond basic calling, texting and Internet access.

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In particular, there's been a lot of interest in turning iPhones into something like the Star Trek medical tricorder.

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For example, University of Illinois researchers are developing an app and cradle-like device that makes the iPhone a biosensor.

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The key is the smartphone's camera and processing power combined with the lenses and filters located in the cradle.

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Just put a sample of what you want to study on a slide and insert it into the cradle.

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The iPhone screen indicates a shift in wavelength when the cradle's photonic crystal detects toxins, proteins, bacteria, viruses or other biological materials on the slide.

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The researchers published in the journal Lab on a Chip.

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Imagine using a smartphone to tell if there are toxins in harvested corn and soybeans or pathogens in a water supply.

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That's a handy tool that lowers the cost of medical fieldwork.

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Plus, when you're done, it's easy to call in the results.

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Thanks for the minute, for Scientific American's 60-Second Tech. I'm Larry Greenemeier.

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