Nanohole as Seen through An Electron Microscope (image) Ecole Polytechnique Fédérale de Lausanne Share Print E-Mail Caption This is a screenshot of an electron microscope at EPFL's Center for MicroNanotechnology. The hole of the capillary, seen from above, can be shrunk according the needs and monitored live until the proper diameter is reached. The green circle shows that it has now a diameter of 20 nm. Credit Alain Herzog / EPFL 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.