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Graphene oxide (GO) is deposited onto the Al2O3 gates of field‐effect transistor devices to yield a functional matrix for the sensing of thrombin or Hg2+ ions. The deposition of an aptamer subunit against thrombin or a tailored nucleic acid with appropriate T mismatches on the GO, yield active surfaces for the analysis of thrombin or Hg2+ ions. The desorption of the aptamer‐subunit from GO, through...
The optical detection of DNA or the sensing of low-molecular-weight substrates or proteins by aptamer nucleic acids is a long term challenge in the design of biosensors. Similarly, the detection of the telomerase activity, a versatile biomarker of cancer cells, is important for rapid cancer diagnostics. We implement the luminescence quenching of the CdSe/ZnS quantum dots (QDs) as a versatile process...
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