Achievement of macroscale superlubricity from the hydration effect could provide a potential application for artificial articular cartilage. In this work. two zwitterionic polymers. 2-methacryloyloxyethyl phosphorylcholine (MPC) and sulfobetaine methacrylate (SBMA). https://countryscenesaddleryandpetsuppliers.shop/product-category/rodeo/