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3 October 2022 Self-assembled ensembles of protein complexes enable long-range interfacial tunneling
Ryan Chiechi, Xinkai Qiu
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Proceedings Volume PC12199, Physical Chemistry of Semiconductor Materials and Interfaces XXI; PC121990I (2022) https://doi.org/10.1117/12.2632389
Event: SPIE Nanoscience + Engineering, 2022, San Diego, California, United States
Abstract
In this contribution, I will discuss our recent work on charge-transport through self-assembled ensembles of the trimeric protein complex, photosystem I (PSI). These remarkable complexes form robust junctions that can be printed and wired into integrated circuits. Current is mediated by long-range tunneling across the complexes, the orientation of which determines their function; in the "up" or "down" position they exhibit temperature-independent current-rectification. Mixing these orientations leads to no rectification. Thus, by controlling the self-assembly process, all-protein logic circuits can be printed onto flexible substrates with yields approaching 100%. These logic circuits operate at speeds of at least 3 kHz.
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Ryan Chiechi and Xinkai Qiu "Self-assembled ensembles of protein complexes enable long-range interfacial tunneling", Proc. SPIE PC12199, Physical Chemistry of Semiconductor Materials and Interfaces XXI, PC121990I (3 October 2022); https://doi.org/10.1117/12.2632389
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KEYWORDS
Proteins
Interfaces
Electron transport
Process control
Semiconductors
Gold
Logic
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