Graphene is an allotrope (form) of carbon consisting of a single layer of carbon atoms arranged in an hexagonal lattice. It is the basic structural element of many other allotropes of carbon, such as graphite, charcoal, carbon nanotubes and fullerenes.
In cases where surgery and radiation are combined, proton therapy is an ideal part of brain cancer treatment. Different brain tumors require different doses of radiation for control and eradication. Like any other organ in the body, the brain can only tolerate a limited amount of radiation.
Proton therapy, a kind of particle therapy, directs proton beams with great precision at cancer cells. In proton therapy, a high energy beam of protons, instead of high energy X-rays, is used to deliver a dose of radiation therapy to cancer patients.he National Health Service 1 in the UK says that proton therapy is better with some rare cancers where the tumors are located at the base of the skull or spine. With traditional radiation therapy, such tumors cannot be targeted because of the risk of damage to vital surrounding tissue (nerves).