Large scale commercial fabrication of high quality graphene-based assays for biomolecule detection

•Thousands of graphene transistors were packaged into ceramic chip carriers.•Fabrication methods ensure devices with excellent electrical properties.•The ceramic carrier is compatible with standard electronics assembly.•Devices demonstrate protein sensitivity in the pM range after functionalization....

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Veröffentlicht in:Sensors and actuators. B, Chemical Chemical, 2017-02, Vol.239, p.1261-1267
Hauptverfasser: Lerner, Mitchell B., Pan, Deng, Gao, Yingning, Locascio, Lauren E., Lee, Kian-Yong, Nokes, Jolie, Afsahi, Savannah, Lerner, Jeremy D., Walker, Amy, Collins, Philip G., Oegema, Karen, Barron, Francie, Goldsmith, Brett R.
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Sprache:eng
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Zusammenfassung:•Thousands of graphene transistors were packaged into ceramic chip carriers.•Fabrication methods ensure devices with excellent electrical properties.•The ceramic carrier is compatible with standard electronics assembly.•Devices demonstrate protein sensitivity in the pM range after functionalization.•Measurements of kinetics make this a state-of-the-art characterization tool. Large numbers of high quality graphene transistors with mobility approximately 5000cm2/V*s were fabricated by chemical vapor deposition and packaged into ceramic carriers with an open cavity design. The ceramic carrier is compatible with standard electronics assembly, enabling the readout of graphene properties on the benchtop without large, expensive probing systems. After chemical functionalization, these sensors demonstrate sensitivity in the pM range and selectivity to many classes of biomolecules as a three terminal liquid-gated field effect transistor. High precision measurements of protein kinetics captured using this technology, commercially known as AGILE R100, are comparable and can exceed the capabilities of state-of-the-art biomolecule characterization tools.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2016.09.137