New solvent-free 3D printing material could enable biodegradable implants

Researchers have invented a new solvent-free polymer for digital light printing (DLP), a type of 3D printing that essentially pulls solid objects out of a shallow pool of resin one layer at a time. Besides eliminating a well-known issue of finished objects shrinking after printing, the lack of solvent also results in improved mechanical properties of the part while maintaining the ability to degrade in the body.