3D printed nanoparticles

A microfluidic channel made using a so-called "3D printer" could help unlock the world of nanoparticle manufacture by removing the drudgery of production of platinum or gold nanoparticles, for instance, and so reduce costs considerably and enable mass production. At current prices gold is about $50 per gram, but gold nanoparticles weigh in at a hefty $80000 per gram! The scalable development of parallel microfluidics by a team at the University of Southern California could make nanotechnology accessible on a relatively low-cost industrial scale.