Assembling Matter in 3D Using Sound Waves for 3D Printing

A team of researchers from Heidelberg University and Max Planck Institute for Medical Research have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads, and even biological cells can be printed. These results pave the way for novel 3D cell culture techniques with applications in biomedical engineering.