Nanomedicine is a branch of medicine that uses tiny materials, typically between 1 and 100 nanometers in size, to diagnose, treat, and prevent diseases. These nanoscale materials can interact with biological systems at the molecular level, allowing for targeted drug delivery, improved imaging techniques, and the development of new therapies. By utilizing nanoparticles, researchers can enhance the effectiveness of medications while minimizing side effects. For example, nanocarriers can transport drugs directly to cancer cells, increasing treatment efficiency. Overall, nanomedicine holds great promise for advancing healthcare and improving patient outcomes.