3-D Printer Produced 'Beads' (IMAGE) Louisiana Tech University Caption Three-D printer-produced "beads" containing antibacterial or cancer-fighting compounds are shown. Credit Louisiana Tech University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.