Prints (IMAGE) University of Bristol Caption Example 100-micron wide 3D-printed microchannel scaffolds, shown next to a 20p coin - the cost to print 1000 of these channels. Credit University of Bristol 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.