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.
Reviewed by Louise Chang, MD. Nov. 1, 2012 (Boston) -- A pricey new treatment for prostate cancer called proton beam therapy appears to cause slightly less diarrhea, bloating, and cramping than traditional radiation treatments.But the effect is short-lived, a new study suggests.atients say proton beam therapy sounds so much better, they want it no matter what the cost, says Colleen Lawton, MD, a radiation oncologist at the Medical College of Wisconsin Clinical Cancer Center in Milwaukee.