Biomaterials have progressed from passive structural supports to dynamic therapeutic platforms with multi-functions that actively regulate biological processes. Modern smart biomaterials integrate antimicrobial, immunomodulatory, and regenerative functions to foster optimal healing environments. Innovations such as advanced hydrogels and electrospun nanofibers, enhanced with biological agents, effectively resolve inflammation, promote angiogenesis, and suppress biofilms. Composite scaffolds with controlled stiffness and spatial delivery of growth factors are redefining bone and cartilage repair. Smart biomaterials enhance implanted devices by responding to biological signals and improving tissue integration. They can adapt to body conditions, release drugs when needed, and resist infection—reducing rejection and promoting faster healing. Antimicrobial biomaterials now emphasize infection-triggered activity, reducing cytotoxicity and resistance. Immune coordination is increasingly recognized as essential for clinical success. Addressing challenges in safety, cost, and scalability will enable smart biomaterials to serve as therapeutic systems, accelerating tissue repair in both acute and chronic settings.




