Engineered Polymers for Precision Medicine: Emerging Paradigms in Drug Delivery Systems
Abstract
Polymer-based DDSs have brought in a major revolution in the field of pharmaceutical science by helping exert control over the spatial and temporal distribution of therapeutic agents. The polymeric structures and functionalities of these systems have been engineered precisely to confront the major impediments of conventional drug administration: poor solubility, rapid metabolism, and non-specific distribution. This review covers recent advances in polymeric DDSs in the area of material classification, novel delivery platforms, stimuli-responsive systems, and state-of-the-art drug loading and release technologies. Particular emphasis has been given to biodegradable and biocompatible polymers-natural and synthetic developing drug delivery platforms that are targeted, sustained, and comfortable for the patient. Important polymer-based carriers such as nanoparticles, polymeric micelles, dendrimers, hydrogels, and polymer-drug conjugates have been discussed concerning their physicochemical advantages, unroll therapeutics, and limitations. The review covers stimuli-responsive systems in which polymeric carriers can release the drug in response to pH, temperature, enzymes, or physical stimuli, including light and magnetic fields, which elevate these opportunities toward personalised and precision medicine. Clinical case studies and translational progress are underlining the actual technologies in clinical applications in oncology, infectious diseases, and chronic conditions. On the bright side, this review deals with tough challenges, including but not limited to scalability, regulatory hurdles, immunogenicity, and chronic biocompatibility. Lastly, future trends are discussed in terms of merging smart polymers, artificial intelligence-aided design, and sustainable polymeric materials. This review will form a basis for future reference for researchers, clinicians, and regulatory stakeholders with insight into the dynamic trend of polymer-based drug delivery and its potential impact in properly improving therapeutic outcomes.