Journal
NANOTECHNOLOGY
Volume 24, Issue 35, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/24/35/355502
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Funding
- Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231]
- Oregon Nanoscience and Microtechnologies Institute (ONAMI)
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We demonstrate that micron-scale graphene field-effect transistor biosensors can be fabricated in a scalable fashion from large-area chemical vapor deposition derived graphene. We electrically detect the real-time binding and unbinding of a protein biomarker, thrombin, to and from aptamer-coated graphene surfaces. Our sensors have low background noise and high transconductance, comparable to exfoliated graphene devices. The devices are reusable and have a shelf-life greater than one week.
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