Conservators at the Persepolis World Heritage Site have begun the pilot deployment of a revolutionary 'Carbon-Silicon Nano-Armor' designed to protect the site's famous Achaemenid-era bas-reliefs. The transparent, one-molecule-thick coating is engineered to be completely reversible while providing a high-tensile shield against the increasing frequency of abrasive sandstorms and chemical erosion caused by atmospheric pollutants.
Unlike traditional resins, this nanotechnology allows the stone to 'breathe,' preventing the buildup of moisture that leads to internal structural cracking. The project, a collaboration between the Iranian Ministry of Cultural Heritage and global nanotech firms, utilizes a specialized application process that bonds to the stone at a molecular level without altering its visual appearance or texture. If successful, the tech will be scaled to protect other exposed limestone monuments across the Middle East.