This is one of those "I'll post a link and see what your reaction is" type threads. 
nanomedicine
Ever since the inadvertent transection to my lower ulnar nerve, I've been fascinated by the thought of a liquid solution filled with tiny robots being injected into the blood stream via a hypodermic needle. These tiny little robots will repair your body on a cellular scale, because that's how small they are. They will be controlled wirelessly from outside the body via a computer similar to the one you're using now.
nanomedicine
Ever since the inadvertent transection to my lower ulnar nerve, I've been fascinated by the thought of a liquid solution filled with tiny robots being injected into the blood stream via a hypodermic needle. These tiny little robots will repair your body on a cellular scale, because that's how small they are. They will be controlled wirelessly from outside the body via a computer similar to the one you're using now.