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(Funded by the National Science Foundation and the National Geospatial-Intelligence Agency)
Graphene-based biosensors could usher in an era of liquid biopsy, detecting DNA cancer markers circulating in a patient's blood or serum. But current designs need a lot of DNA. In a new study, researchers at the University of Illinois at Urbana-Champaign have found that crumpling graphene makes it more than 10,000 times more sensitive to DNA by creating electrical "hot spots."
