Silicon Nanowires (IMAGE) Lomonosov Moscow State University Caption These silicon nanowires were obtained with the help of new eco-friendly method developed by Russian scientists. Toxic hydrofluoric acid is replaced by harmless ammonium fluoride. Credit Kirill Gonchar Usage Restrictions Credit: Kirill Gonchar 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.