Dear Zia Ullah Khan, generally they are not removed, but destroyed inside the body after a certain residence time which is part of the smart design of nanoparticles. My Regards
Nanoparticles that are present in the body (i.e. after injection) are largely taken up and eliminated by the reticulohistiocytic system (RHS). This system represents a network of cells that are distributed throughout the body within its organs
Nanoparticles that are present in the body (i.e. after injection) are largely taken up and eliminated by the reticulohistocytic system (RHS). This system represents a network of cells that are distributed throughout the body within its organs. The function of the RHS is the inactivation and elimination of dead cells, bacteria, viruses, and infiltrated small particulates. Nanoparticles also belong to these "infiltrates".