Our team of researchers at MIT’s Little Devices Lab have developed a pocket sized laboratory for biology that allows anyone to invent and deploy rapid diagnostics to detect diseases like Zika and Dengue, as well as everyday biomarkers like cholesterol. Using plug and play reaction blocks, it can be as easy as snapping Legos together. The current approach to developing diagnostic tools involves shipping out samples to faraway labs for the development of tests that take too long and cost too much – but what would happen if everyone could have the tools they needed to design and make diagnostics? If the ability to diagnose disease was directly in the hands of those who most needed it?