A slightly more recent invention that I recall would be Jack Andraka's pancreatic cancer testing. Via Wikipedia[1]: "Andraka's sensor costs $0.03 (to compare

A slightly more recent invention that I recall would be Jack Andraka's pancreatic cancer testing. Via Wikipedia[1]: "Andraka's sensor costs $0.03 (to compare to a $800 cost of a standard test[10]) and 10 tests can be performed per strip, taking 5 minutes each. The method is 168 times faster, 26,667 times less expensive, and 400 times more sensitive than ELISA, and 25% to 50% more accurate than the CA19-9 test" Discussion on Hacker News from last year: https://news.ycombinator.com/item?id=4265830 https://news.ycombinator.com/item?id=4265830 [1] http://en.wikipedia.org/wiki/Jack_Andraka http://en.wikipedia.org/wiki/Jack_Andraka