Most orthopedic implants, like hip and knee joint replacements, last from ten to 15 years, which means that many patients require several replacement surgeries in their lifetimes. Scientists at Brown University hope to change that; they have started working on superior implants that may be easier to monitor and will integrate better with surrounding body cells.

The surface of an orthopedic implant is specially treated to sprout carbon nano. Researchers have found that this titanium grows bone cells faster and stronger than regular titanium does, so they're working to engineer orthopedic implants that can detect bone growth.

There is no doubt that technology gets better every day, making life easier for millions of people; but what about the hight cost of living? Can't nano tech come with a nano price?