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Two months ago, he and his former student, Aaron Michelson, now a staff scientist at Brookhaven National Laboratory's Center for Functional Nanomaterials, delivered a prototype for collaborators at the University of Minnesota interested in creating 3D light sensors integrated onto microchips. They built the sensors by growing DNA scaffolds on a chip and then coating them with light-sensitive material.

That device was just the first of many. In their latest paper in Nature Materials, Gang and his team establish an inverse design strategy for creating the desired 3D structures from a set of nanoscale DNA components and nanoparticles.