I wanted to use targeted drug delivery to treat vessels in the body. I know of vessels fracturing, becoming narrow and also becoming an aneurysm state. I know Abbotts developed or worked with to alter vessels back to a normal state. I know a device was used to identify vessels in the body. I thought about being based on flow modelling. I w\anted to consider gold nanorods attached to polymer to treat the vessels. As mentioned elsewhere Abbotts developed a procedure to change vessels back to normal over 2 years using a type of expanding polymer. Others have mentioned radiology and aiding particle flow into the required area.