SYNTHETIC CARTILAGE USING MAGNETO RHEOLOGICAL HYDROGELS FOR ADAPTIVE JOINT MECHANICS

Abstract

Cartilage degeneration poses a significant challenge in joint health, with current treatment options often falling short in durability and adaptability. This study investigates magneto-rheological (MR) hydrogels as a potential solution for synthetic cartilage, leveraging their ability to dynamically adjust stiffness under an external magnetic field. MR hydrogels were synthesized using polyvinyl alcohol (PVA) and Fe₃O₄ nanoparticles, with mechanical and biocompatibility properties evaluated. Results showed a 300% increase in Young’s modulus under a 0.5 Tesla field, friction coefficients comparable to native cartilage, and over 90% cell viability, confirming their suitability for biomedical applications. These findings highlight MR hydrogels as a promising material for adaptive joint mechanics and next-generation prosthetic designs.