Elusive 3D printed nanoparticles could lead to new shapeshifting materials

A Stanford University research team has used a 3D nanoprinting technique to produce Archimedean truncated tetrahedrons (ATTs). ATTs, micrometer-scale tetrahedrons with trimmed tips, have been theorized as having geometries that could produce phase-shifting materials, but are challenging to create in the real world. 3D printing could allow for precise control of particle shape and geometry to produce materials with novel physical properties.