The quote was:
 "Computers and mathematics could also benefit. Maze navigation can fall into a class of problems known as NP-complete, "which computers have a surprisingly hard time solving, as the effort to solve them goes up exponentially with the scale of the problem," says chemist Irv Epstein of Brandeis University in Waltham, Massachusetts. "The kind of approach shown here with these mazes might be a very efficient approach to address this problem."<p>There are other cases of analog chemical processes beating out digital computations. But the reference to medicine also seems like a stretch - navigating a simple maze with a couple of acidic and basic chemicals seems very far away from a complex chemical hunting cancer in the human body.