Purpose <p>Smart polymers represent a rapidly advancing class of biomaterials capable of responding to physiological stimuli in a controlled and predictable manner, making them highly relevant for regenerative engineering and translational medicine. Innovations in polymer chemistry, nanotechnology, and biofabrication have enabled precise tuning of responsiveness, degradation, and therapeutic loading. However, their successful clinical translation requires overcoming challenges in reproducibility, biocompatibility, and scalable manufacturing. This review aims to summarize the molecular design strategies, fabrication techniques, functional performance, and translational considerations of stimuli-responsive smart polymers for regenerative biomedical applications.</p> Methods <p>A structured literature survey was conducted using databases including PubMed, Scopus, Web of Science, and Google Scholar. Search terms included “smart polymers,” “stimuli-responsive biomaterials,” “regenerative engineering,” “biofabrication,” “scalable manufacturing,” and “translational medicine.” Articles focusing on polymer design, responsiveness mechanisms, biomedical applications, and fabrication methods such as injection molding, electrospinning, 3D printing, and solvent casting were included. Studies addressing regulatory considerations, clinical translation, and manufacturing readiness were also reviewed to provide a comprehensive and translationally focused perspective.</p> Results <p>The review highlights major classes of stimuli-responsive polymers and their roles in drug delivery, tissue engineering, wound healing, and implantable biomedical devices. Mechanistic insights into polymer responsiveness, degradation behavior, and therapeutic encapsulation are presented. Comparative evaluation of fabrication platforms—including industrial injection molding, electrospinning for nanofibrous matrices, additive manufacturing through 3D printing, and solvent casting—is provided with emphasis on scalability, reproducibility, and regulatory compliance. Case studies demonstrate how smart polymers are currently being integrated into regenerative scaffolds, wound dressings, controlled drug-release systems, and adaptive implantable devices. Key translational challenges related to material safety, batch consistency, sterilization compatibility, and clinical viability are discussed alongside emerging opportunities in personalized medicine, bioelectronic interfaces, and sustainable manufacturing.</p> Conclusions <p>Smart polymers hold substantial promise for next-generation regenerative biomedical solutions due to their adaptive behavior and tunable functionality. While significant progress has been made in material design and fabrication, translation into clinical practice requires coordinated advances in scalable manufacturing, regulatory alignment, and long-term biocompatibility assessment. Continued integration of polymer science with engineering and clinical research will accelerate the development of smart, patient-specific therapeutic systems.</p> Lay Summary <p>Smart polymers are materials that can sense and respond to changes in the body, such as pH, temperature, or enzymes. These properties allow them to release drugs in a controlled way, support tissue repair, and function as advanced wound dressings or implantable devices. Modern fabrication techniques like electrospinning and 3D printing help produce these materials on larger scales. Although challenges remain in ensuring safety and clinical readiness, smart polymers are expected to play a major role in personalized medicine and future regenerative treatments.</p> Graphical Abstract <p></p>