I understand a lymphogram has been developed to deploy blue dye via the foot to determine flow paths through the lymph system. I want to use gold nanorods which I understand can attach to the cancer in the nodes and the vessels. Can be modelled via scanning technology. Might not be in operation anymore but scientists from Scandinavia developed techniques to rebuild lymph vessels, nodes and glands. Particles would need to be small enough to travel through the vessels. I want to consider suspension and alteration initially, dissolving and time to exit the body as well.