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We demonstrate a synthesis of graphene layers on graphene templates prepared by the mechanical exfoliation of graphite crystals using a developed chemical vapor deposition (CVD) apparatus that has a furnace with three temperature zones and can regulate the temperatures separately in each zone. This results in individual control over the decomposition reaction of the carbon feedstock and the growth...
Label-free immunosensors based on aptamer-modified graphene field-effect transistors (G-FETs) were realized. Immunoglobulin E (IgE) aptamers were functionalized on the graphene surface. From atomic force microscopy, functionalized IgE aptamer with approximately 3 nm height was observed. And the drain current of the G-FETs increased after IgE aptamers functionalized on the graphene channel owing to...
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