ArticleJournal of the American Chemical Society2015
Mechanism of Orientation-Dependent Asymmetric Charge Transport in Tunneling Junctions Comprising Photosystem I.
Article in Journal of the American Chemical Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Frontier Orbital Gating of Rectification and Conductance in Tunneling Junctions Comprising Pyridine-Terminated Molecular Wires.ACS nanoscience Au · 2025Article
- Hard-Wired Solid-State Bioelectronic Micropore Devices: Permanent Metal-Protein-Metal Junction Proof-of-Concept.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Near-Temperature-Independent Electron Transport Well beyond Expected Quantum Tunneling Range via Bacteriorhodopsin Multilayers.Journal of the American Chemical Society · 2023Article
- Fabrication of electron tunneling probes for measuring single-protein conductance.Nature protocols · 2023Review
- Biotin Binding Hardly Affects Electron Transport Efficiency across Streptavidin Solid-State Junctions.Langmuir : the ACS journal of surfaces and colloids · 2023Article
- Charge Transport across Proteins inside Proteins: Tunneling across Encapsulin Protein Cages and the Effect of Cargo Proteins.Biomolecules · 2023Article
- Temperature-Dependent Coherent Tunneling across Graphene-Ferritin Biomolecular Junctions.ACS applied materials & interfaces · 2022Article
- Measuring conductance switching in single proteins using quantum tunneling.Science advances · 2022Article
- Printable logic circuits comprising self-assembled protein complexes.Nature communications · 2022Article
- Fullerenes Enhance Self-Assembly and Electron Injection of Photosystem I in Biophotovoltaic Devices.Langmuir : the ACS journal of surfaces and colloids · 2021Article
- Development of a Novel Nanoarchitecture of the Robust Photosystem I from a Volcanic MicroalgaInternational journal of molecular sciences · 2021Article
- Enhanced interfacial electron transfer between thylakoids and RuOScience advances · 2021Article
- In Operando Modulation of Rectification in Molecular Tunneling Junctions Comprising Reconfigurable Molecular Self-Assemblies.Advanced materials (Deerfield Beach, Fla.) · 2021Article
- Room temperature conductance switching in a molecular iron(iii) spin crossover junction.Chemical science · 2020Article
- Thiol-free self-assembled oligoethylene glycols enable robust air-stable molecular electronics.Nature materials · 2020Article
- Power Factor of One Molecule Thick Films and Length Dependence.ACS central science · 2019Article
- Self-Regenerating Soft Biophotovoltaic Devices.ACS applied materials & interfaces · 2018Article
- Tunneling explains efficient electron transport via protein junctions.Proceedings of the National Academy of Sciences of the United States of America · 2018Article
- Orientation and Incorporation of Photosystem I in Bioelectronics Devices Enabled by Phage Display.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2017Article
- Rectification of current responds to incorporation of fullerenes into mixed-monolayers of alkanethiolates in tunneling junctions.Chemical science · 2017Article
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Authors and funding
6 authors.
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Abstract
Recently, photoactive proteins have gained a lot of attention due to their incorporation into bioinspired (photo)electrochemical and solar cells. This paper describes the measurement of the asymmetry of current transport of self-assembled monolayers (SAMs) of the entire photosystem I (PSI) protein complex (not the isolated reaction center, RCI), on two different "director SAMs" supported by ultraflat Au substrates. The director SAMs induce the preferential orientation of PSI, which manifest as asymmetry in tunneling charge-transport. We measured the oriented SAMs of PSI using eutectic Ga-In (EGaIn), a large-area technique, and conducting probe atomic force microscopy (CP-AFM), a single-complex technique, and determined that the transport properties are comparable. By varying the temperatures at which the measurements were performed, we found that there is no measurable dependence of the current on temperature from ±0.1 to ±1.0 V bias, and thus, we suggest tunneling as the mechanism for transport; there are no thermally activated (e.g., hopping) processes. Therefore, it is likely that relaxation in the electron transport chain is not responsible for the asymmetry in the conductance of SAMs of PSI complexes in these junctions, which we ascribe instead to the presence of a large, net dipole moment present in PSI.
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