The FDA's approval of the first CRISPR therapeutic, Casgevy, marks a milestone in gene-editing therapies, with over 300 CRISPR-based treatments in development. Innovations in drug-delivery vectors, such as nonviral options like lipid nanoparticles (LNPs), polymer-based nanoparticles, and extracellular vesicles (EVs), are crucial for enhancing specificity, efficiency, and safety. These advancements could reduce healthcare costs and improve patient access, potentially leading to cures for chronic diseases. Flow cytometry and analytical ultracentrifugation are key tools in vector development, aiding in the characterization and optimization of these delivery systems.