"Paper tests [...] could make it possible to diagnose a range of diseases quickly and cheaply. A small drop of liquid, such as blood or urine, wicks in through the corner or back of the paper and passes through channels to special testing zones. [...] These tests are small, simple, and inexpensive."What's especially cool is that these kind of penny diagnostics are incredibly useful in a developing country context, which is exactly what spinoff company and 2008 MIT $100K Entrepreneurship Competition Winner Diagnostics for All is targeting!
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