Nanotechnology has the potential to revolutionize the treatment of Alzheimer's disease by offering targeted drug delivery systems. Nanocarriers can be designed to cross the blood-brain barrier and deliver therapeutic agents directly to the affected areas in the brain. This targeted approach can reduce side effects and increase the efficacy of the treatment. Additionally, nanomedicine can be used to develop drugs that can inhibit or dissolve amyloid-beta plaques and tau tangles.