the area under the name of rawan ko the system of science and technology that the people who have opinions from sang are going to be honored as the top five scientists of the islamic world in this period by the media and we invited 50 media and foreigners who from the special investment that friends have made to attend to other media from the 5th mustafa science and technology award will be held in isfahan from the 6th to the 12th of october. mohammad ali sohailipour of the isfahan broadcasting news agency is the deputy of our country using the kathira as a biodegradable polymer, a material with a network structure and water absorption ability to repair the glaze. damaged containers according to the report of the nano headquarters, in severe injuries of the joint, in addition to the loss of cartilage, the bone underneath is also damaged. in this type of injuries , the use of a multi-layered structure for cartilage tissue engineering is essential. therefore, researchers to meet this need of they used someone as a natural polymer , which is available cheaply and can be a method for treating