Exosome-driven biohybrid nanorobots: bridging nature and nanotechnology in biomedical innovation.

Exosome- and extracellular vesicle (EV)-based biohybrid nanorobots represent a cutting-edge approach in nanomedicine, combining the natural targeting, immune tolerance, and molecular transport capabilities of EVs with the functional versatility of engineered nanomaterials. These hybrid systems can be designed for guided or autonomous navigation, enabling site-specific drug delivery with minimal cytotoxicity. Recent advances have integrated magnetic, photothermal, or drug-loaded components into EVs, transforming them into innovative nanoscale delivery systems. As naturally secreted vesicles from most cell types, EVs facilitate intercellular communication and are increasingly recognized for their clinical potential in treating conditions like Crohn's disease, type 1 diabetes, and COVID-19. Biohybrid EV nanorobots offer enhanced biodistribution, stability, and cellular uptake compared to traditional nanoparticles. Key design challenges include ensuring reproducibility, size control, and functional stability. This next-generation drug delivery platform holds promise for overcoming limitations of conventional systems while advancing targeted therapy and personalized medicine.