BACKGROUND: The increasing frequency of global pandemics, such as COVID-19, H1N1, and Ebola, highlights the urgent need for innovative vaccine technologies that enable rapid response and broader accessibility. Nanovaccines, leveraging nanotechnology for targeted antigen delivery and enhanced immune activation, have emerged as a promising solution for improving vaccine efficacy, stability, and distribution.
OBJECTIVE: This review examines the role of nano vaccines in pandemic preparedness, focusing on their benefits, mechanisms of action, recent advancements, and the challenges associated with their development and deployment.
METHODS: A comprehensive literature review was conducted using databases such as PubMed, Scopus, and Web of Science. Research articles and clinical trial data from the past decade were analyzed, with a focus on nano-vaccine platforms, immune response mechanisms, and global deployment strategies.
KEY FINDINGS: Nanovaccines offer accelerated development timelines, enhanced antigen presentation, and prolonged immune responses via platforms including lipid-based nanoparticles, polymeric systems, virus-like particles, and inorganic nanoparticles. The success of mRNA vaccines during COVID-19 has demonstrated the transformative potential of nanotechnology in vaccine development. However, significant challenges remain, including safety concerns, large-scale manufacturing, regulatory approval procedures, and equitable access, particularly in low- and middle-income countries.
CONCLUSION: Nanovaccines offer substantial promise for global pandemic preparedness. Tackling current challenges through international collaboration, policy support, and increased investment will be essential for ensuring their widespread adoption. Developing nanotechnology-driven vaccine solutions can strengthen global health resilience and enable faster, more effective responses to future pandemics.
