scientific breadboard, basically, to make our own chips. each one of these components locks onto a lego piece, and inside is a single feature of a mic microfluidic circuit. you put your feature together for whatever you might need. >> people who need to test blood for all different kinds of things. this is a crucial ingredient to that. >> absolutely. >> so if you have this sort of kit, you can offer blood testing anywhere in the world in places where they typically couldn't. cholesterol, heart disease, diabetes, the biggest killers, really. so when you look at something like this, technology that costs half a million dollars. >> and very good technology. >> these are legos that you've made yourself with kids' toys, essentially. how much does a kit like this cost, just for sake of comparison? >> the microfluidic kit, that's about $150.