New Method of Producing Carbon Nanotubes Gets Green Light (image) Swansea University Share Print E-Mail Caption Comparison of single walled carbon nanotubes: on the left, produced by Rice University HiPco method, and on the right, produced by NoPo HiPco method. Microscope image of each (scale bar = 0.25 μm) with photograph. Credit Energy Safety Research Institute, Swansea University Usage Restrictions None Share Print E-Mail 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.