disclosed herein are bioresorbable stents which elute nitric oxide . the stent is comprised of three main key design elements : a bioresorbable scaffold , a bioresorbable polymeric coating layer , and no - releasing nanoparticles incorporated in the bioresorbable polymeric coating layer , and optionally also in the scaffold . the no - releasing nanoparticles are made of nontoxic biocompatible and biodegradable materials ; for example a chitosan polymer and optionally a sugar .