We studied physical and electronic properties of iridium suicide nanowires grown on the Si(110) surface with the help of scanning tunneling microscopy and spectroscopy. The nanowires grow along the [001] direction with an average length of about 100 nm. They have a band gap of similar to 0.5 eV and their electronic properties show similarities with the iridium suicide ring clusters formed on Ir modified Si(111) surface. (C) 2015 Elsevier B.V. All rights reserved.