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That's what scientists are working on and according to two new studies published at the end of November, both methods are showing tremendous promise.
A report published in Sunday's edition of Nature Materials detailed tiny, magnetized "nanodiscs", around 60 billionths of a meter thick, that labratory tests found can be used to disrupt the membranes of cancer cells, causing them to self-destruct.
The discs are made from an iron-nickel alloy, which move when subjected to a magnetic field, damaging the cancer cells, the report said.
One of the study's authors, Elena Rozhlova of Argonne National Laboratory in the United States, said subjecting the discs to a low magnetic field for around ten minutes was enough to destroy 90 percent of cancer cells in tests.