Berkeley Lab researchers at the Molecular Foundry like their solutions shaken, not stirred. In this way they have been able to engineer two-dimensional, biomimetic nanosheets with atomic precision for a wide range of applications, including the creation of platforms for sensing molecules, and membranes for filtration. To enable this self-assembly of 2D nanosheets they have developed a programmable device to rock the vial of solutions. They call it a “SheetRocker.”