One of the most promising applications of nanotechnology in biochemistry is in targeted drug delivery. Nanocarriers, such as liposomes, dendrimers, and polymeric nanoparticles, can encapsulate drugs and deliver them specifically to diseased cells. This targeted approach minimizes damage to healthy tissues and enhances the therapeutic efficacy of the drugs. Additionally, nanoparticles can be engineered to respond to specific stimuli, such as pH or temperature changes, releasing the drug at the optimal site of action.