Smart Nanoparticles in Oncology: Enhancing Drug Delivery and Efficacy

Abstract

Cancer remains a leading global health challenge, necessitating innovative therapies to overcome limitations like drug resistance and systemic toxicity. Smart nanoparticles have emerged as a promising solution, offering targeted and stimuli-responsive approaches to enhance treatment precision. This review highlights the urgent need to consolidate recent advancements and address gaps in translating nanotechnologies from bench to bedside. The review explores diverse types of smart nanoparticles, including polymeric, metallic, and lipid-based systems, and their mechanisms of action, such as passive/active targeting and stimuli-responsive drug release. Key insights include their applications in drug delivery, imaging, and overcoming biological barriers, supported by preclinical and clinical successes in breast, pancreatic, and lung cancers. Challenges like biocompatibility and scalability are critically analyzed, alongside strategies to optimize nanoparticle design and functionality. The integration of theranostics and artificial intelligence is emphasized as a transformative approach for personalized oncology. Future prospects lie in advancing multifunctional nanoparticles, refining manufacturing processes, and fostering interdisciplinary collaborations to accelerate clinical adoption. With continued innovation, smart nanoparticles hold immense potential to revolutionize cancer therapy, improving efficacy while minimizing adverse effects. This review underscores their pivotal role in shaping the next generation of precision oncology.