Prayasta, winner of this year s National Startup Technology Award, on Wednesday launched the world s first 3D printer for implant-grade silicone that will be housed at the Centre for BioSystems Science and Engineering (BSSE), Indian Institute of Science (IISc). World’s First 3D Printer ‘Silimac’, for Implant-Grade Silicone To Be Housed at BSSE, IISc.