Nanomedicine - What is Nanomedicine?

What if we could screen for thousands of diseases all at once with just a single drop of blood. What if we could search out and destroy cancer cells without surgery or chemotherapy? What if we could restore eyesights by injecting tiny particles that help the body repair injured nerves? These scenarios may seem far-fetched but they are among the long term goals of researchers working in the new field of nanomedicine.