1
|
Engelbrekt C, Nazmutdinov RR, Shermukhamedov S, Ulstrup J, Zinkicheva TT, Xiao X. Complex single‐molecule and molecular scale entities in electrochemical environments: Mechanisms and challenges. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Christian Engelbrekt
- Department of Chemistry Technical University of Denmark Building 207, DK0‐2800 Kgs. Lyngby Denmark
| | - Renat R. Nazmutdinov
- Department of Inorganic Chemistry Kazan National Research Technological University Karl Marx Str. 68 Kazan 420015 Russian Federation
| | - Shokirbek Shermukhamedov
- Department of Inorganic Chemistry Kazan National Research Technological University Karl Marx Str. 68 Kazan 420015 Russian Federation
| | - Jens Ulstrup
- Department of Chemistry Technical University of Denmark Building 207, DK0‐2800 Kgs. Lyngby Denmark
| | - Tamara T. Zinkicheva
- Department of Inorganic Chemistry Kazan National Research Technological University Karl Marx Str. 68 Kazan 420015 Russian Federation
| | - Xinxin Xiao
- Department of Chemistry Technical University of Denmark Building 207, DK0‐2800 Kgs. Lyngby Denmark
| |
Collapse
|
2
|
Lindsay S. Ubiquitous Electron Transport in Non-Electron Transfer Proteins. Life (Basel) 2020; 10:life10050072. [PMID: 32443721 PMCID: PMC7281237 DOI: 10.3390/life10050072] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 12/15/2022] Open
Abstract
Many proteins that have no known role in electron transfer processes are excellent electronic conductors. This surprising characteristic is not generally evident in bulk aggregates or crystals, or in isolated, solvated peptides, because the outer hydrophilic shell of the protein presents a barrier to charge injection. Ligands that penetrate this barrier make excellent electrical contacts, yielding conductivities on the order of a S/m. The Fermi Energy of metal electrodes is aligned with the energy of internal electronic states of the protein, as evidenced by resonant transmission peaks at about 0.3V on the Normal Hydrogen Electrode scale. This energy is about 0.7 V less than the oxidation potential of aromatic amino acids, indicating a large reduction in electrostatic reorganization energy losses in the interior of the proteins. Consistent with a possible biological role for this conductance, there is a strong dependence on protein conformation. Thus, direct measurement of conductance is a powerful new way to read out protein conformation in real time, opening the way to new types of single molecule sensors and sequencing devices.
Collapse
Affiliation(s)
- Stuart Lindsay
- Biodesign Institute, Department of Physics and School of Molecular Sciences, Arizona State University, Tempe, AZ 85287, USA
| |
Collapse
|
3
|
Shermukhamedov SA, Nazmutdinov RR, Zinkicheva TT, Bronshtein MD, Zhang J, Mao B, Tian Z, Yan J, Wu DY, Ulstrup J. Electronic Spillover from a Metallic Nanoparticle: Can Simple Electrochemical Electron Transfer Processes Be Catalyzed by Electronic Coupling of a Molecular Scale Gold Nanoparticle Simultaneously to the Redox Molecule and the Electrode? J Am Chem Soc 2020; 142:10646-10658. [DOI: 10.1021/jacs.9b09362] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Shokirbek A. Shermukhamedov
- Kazan National Research Technological University, K. Marx Street, 68, 420015 Kazan, Republic of Tatarstan, Russian Federation
| | - Renat R. Nazmutdinov
- Kazan National Research Technological University, K. Marx Street, 68, 420015 Kazan, Republic of Tatarstan, Russian Federation
| | - Tamara T. Zinkicheva
- Kazan National Research Technological University, K. Marx Street, 68, 420015 Kazan, Republic of Tatarstan, Russian Federation
| | - Michael D. Bronshtein
- Kazan National Research Technological University, K. Marx Street, 68, 420015 Kazan, Republic of Tatarstan, Russian Federation
| | - Jingdong Zhang
- Department of Chemistry, Bldg. 207, Technical University of Denmark, DK-2800, Kgs. Lyngby, Denmark
| | - Bingwei Mao
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Zhongqun Tian
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Jiawei Yan
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, People’s Republic of China
| | - Jens Ulstrup
- Kazan National Research Technological University, K. Marx Street, 68, 420015 Kazan, Republic of Tatarstan, Russian Federation
- Department of Chemistry, Bldg. 207, Technical University of Denmark, DK-2800, Kgs. Lyngby, Denmark
| |
Collapse
|
4
|
Hansen AG, Salvatore P, Karlsen KK, Nichols RJ, Wengel J, Ulstrup J. Electrochemistry and in situ scanning tunnelling microscopy of pure and redox-marked DNA- and UNA-based oligonucleotides on Au(111)-electrode surfaces. Phys Chem Chem Phys 2013; 15:776-86. [PMID: 23073185 DOI: 10.1039/c2cp42351k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have studied adsorption and electrochemical electron transfer of several 13- and 15-base DNA and UNA (unlocked nucleic acids) oligonucleotides (ONs) linked to Au(111)-electrode surfaces via a 5'-C6-SH group using cyclic voltammetry (CV) and scanning tunnelling microscopy in aqueous buffer under electrochemical potential control (in situ STM). 2,2',6',2''-Terpyridine (terpy) onto which the transition metal ions Fe(2+/3+), Os(2+/3+) and Ru(2+/3+) could be coordinated after UNA monolayer formation was attached to UNA via a flexible linker. The metal centres offer CV probes and in situ STM contrast markers, and the flexible UNA/linker a potential binder for intercalation. CV of pure and mercaptohexanol diluted ON monolayers displayed reductive desorption signals but also, presumably capacitive, signals at higher potentials. Distinct voltammetric signals arise on metal binding. Those from Ru-binding are by far the strongest and in accord with multiple site Ru-attachment. In situ STM disclosed molecular scale features in varying coverage on addition of the metal ions. The Ru-derivatives showed a bias voltage dependent broad maximum in the tunnelling current-overpotential correlation which could be correlated with theoretical frames for condensed matter conductivity of redox molecules. Together the data suggest that Ru-units are bound to both terpy and the UNA-DNA backbone.
Collapse
Affiliation(s)
- Allan G Hansen
- Department of Chemistry, Building 207, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | | | | | | | | | | |
Collapse
|
5
|
|
6
|
Pobelov IV, Li Z, Wandlowski T. Electrolyte Gating in Redox-Active Tunneling Junctions—An Electrochemical STM Approach. J Am Chem Soc 2008; 130:16045-54. [DOI: 10.1021/ja8054194] [Citation(s) in RCA: 140] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ilya V. Pobelov
- Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| | - Zhihai Li
- Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| | - Thomas Wandlowski
- Department of Chemistry and Biochemistry, University of Bern, CH-3012 Bern, Switzerland, and Institute of Bio- and Nanosystems IBN 3 and Center of Nanoelectronic Systems for Informational Technology, Research Center Jülich, D-52425 Jülich, Germany
| |
Collapse
|
7
|
Kuznetsov AM, Medvedev IG, Ulstrup J. Effect of the debye screening on the tunnel current through simple electrochemical bridged contact. RUSS J ELECTROCHEM+ 2008. [DOI: 10.1134/s1023193508090012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
8
|
Zhang J, Kuznetsov AM, Medvedev IG, Chi Q, Albrecht T, Jensen PS, Ulstrup J. Single-Molecule Electron Transfer in Electrochemical Environments. Chem Rev 2008; 108:2737-91. [PMID: 18620372 DOI: 10.1021/cr068073+] [Citation(s) in RCA: 252] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
9
|
From Self-Assembly to Charge Transport with Single Molecules – An Electrochemical Approach. Top Curr Chem (Cham) 2008; 287:181-255. [DOI: 10.1007/128_2008_152] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
10
|
Kuznetsov AM. Theory of nonadiabatic electron transitions in symmetrical two-center tunnel electrochemical contact. RUSS J ELECTROCHEM+ 2007. [DOI: 10.1134/s1023193507120014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
11
|
Kuznetsov AM, Medvedev IG, Ulstrup J. Electric double layer effect on observable characteristics of the tunnel current through a bridged electrochemical contact. J Chem Phys 2007; 127:104708. [PMID: 17867770 DOI: 10.1063/1.2766954] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Scanning tunneling microscopy and electrical conductivity of redox molecules in conducting media (aqueous or other media) acquire increasing importance both as novel single-molecule science and with a view on molecular scale functional elements. Such configurations require full and independent electrochemical potential control of both electrodes involved. We provide here a general formalism for the electric current through a redox group in an electrochemical tunnel contact. The formalism applies broadly in the limits of both weak and strong coupling of the redox group with the enclosing metal electrodes. Simple approximate expressions better suited for experimental data analysis are also derived. Particular attention is given to the effects of the Debye screening of the electric potential in the narrow tunneling gap based on the limit of the linearized Poisson-Boltzmann equation. The current/overpotential relation shows a maximum at a position which depends on the ionic strength. It is shown, in particular, that the dependence of the maximum position on the bias voltage may be nonmonotonous. Approximate expressions for the limiting value of the slope of the current/overpotential dependence and the width of the maximum on the bias voltage are also given and found to depend strongly on both the Debye screening and the position of the redox group in the tunnel gap, with diagnostic value in experimental data analysis.
Collapse
Affiliation(s)
- Alexander M Kuznetsov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Science, Leninskii prospect 31, 119991 Moscow, Russian Federation.
| | | | | |
Collapse
|
12
|
|
13
|
Bixon M, Jortner J. Electron Transfer-from Isolated Molecules to Biomolecules. ADVANCES IN CHEMICAL PHYSICS 2007. [DOI: 10.1002/9780470141656.ch3] [Citation(s) in RCA: 232] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
14
|
Nazmutdinov RR, Manyurov IR, Zinkicheva TT, Jang J, Ulstrup J. Cysteine adsorption on the Au(111) surface and the electron transfer in configuration of a scanning tunneling microscope: A quantum-chemical approach. RUSS J ELECTROCHEM+ 2007. [DOI: 10.1134/s1023193507030111] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
15
|
Nazmutdinov RR, Zhang J, Zinkicheva TT, Manyurov IR, Ulstrup J. Adsorption and in situ scanning tunneling microscopy of cysteine on Au(111): Structure, energy, and tunneling contrasts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2006; 22:7556-67. [PMID: 16922533 DOI: 10.1021/la060472c] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The amino acid L-cysteine (Cys) adsorbs in highly ordered (3 square root of 3 x 6) R30 degrees lattices on Au(111) electrodes from 50 mM ammonium acetate, pH 4.6. We provide new high-resolution in situ scanning tunneling microscopy (STM) data for the L-Cys adlayer. The data substantiate previous data with higher resolution, now at the submolecular level, where each L-Cys molecule shows a bilobed feature. The high image resolution has warranted a quantum chemical computational effort. The present work offers a density functional study of the geometry optimized adsorption of four L-Cys forms-the molecule, the anion, the neutral radical, and its zwitterion adsorbed a-top-at the bridge and at the threefold hollow site of a planar Au(111) Au12 cluster. This model is crude but enables the inclusion of other effects, particularly the tungsten tip represented as a single or small cluster of W-atoms, and the solvation of the L-Cys surface cluster. The computational data are recast as constant current-height profiles as the most common in situ STM mode. The computations show that the approximately neutral radical, with the carboxyl group pointing toward and the amino group pointing away from the surface, gives the most stable adsorption, with little difference between the a-top and threefold sites. Attractive dipolar interactions screened by a dielectric medium stabilize around a cluster size of six L-Cys entities, as observed experimentally. The computed STM images are different for the different L-Cys forms. Both lateral and vertical dimensions of the radical accord with the observed dimensions, while those of the molecule and anion are significantly more extended. A-top L-Cys radical adsorption further gives a bilobed height profile resembling the observed images, with comparable contributions from sulfur and the amino group. L-Cys radical a-top adsorption therefore emerges as the best representation of L-Cys adsorption on Au(111).
Collapse
Affiliation(s)
- Renat R Nazmutdinov
- Kazan' State Technological University, 420015 Kazan, Republic of Tatarstan, Russia
| | | | | | | | | |
Collapse
|
16
|
Marcus parabola and reorganization energies associated with redox change of electron-transfer proteins, detected by V–I characteristics of STM currents. J Electroanal Chem (Lausanne) 2006. [DOI: 10.1016/j.jelechem.2006.04.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
17
|
Zinth W, Wachtveitl J. The First Picoseconds in Bacterial Photosynthesis?Ultrafast Electron Transfer for the Efficient Conversion of Light Energy. Chemphyschem 2005; 6:871-80. [PMID: 15884069 DOI: 10.1002/cphc.200400458] [Citation(s) in RCA: 129] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In this Minireview, we describe the function of the bacterial reaction centre (RC) as the central photosynthetic energy-conversion unit by ultrafast spectroscopy combined with structural analysis, site-directed mutagenesis, pigment exchange and theoretical modelling. We show that primary energy conversion is a stepwise process in which an electron is transferred via neighbouring chromophores of the RC. A well-defined chromophore arrangement in a rigid protein matrix, combined with optimised energetics of the different electron carriers, allows a highly efficient charge-separation process. The individual molecular reactions at room temperature are well described by conventional electron-transfer theory.
Collapse
Affiliation(s)
- Wolfgang Zinth
- Department für Physik, Ludwig-Maximilians-Universität München, Oettingenstr. 67, 80538 München, Germany.
| | | |
Collapse
|
18
|
Kornyshev AA, Kuznetsov AM, Ulstrup J. Double-Tunnel Nanoscale Switch with a Redox Mediator: Operational Principles and Tunneling Spectroscopy. Chemphyschem 2005; 6:583-6. [PMID: 15881569 DOI: 10.1002/cphc.200400586] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A description of the physical mechanism and operation of a novel nanometric electronic switch [D.I. Gittins et al., Nature 2000 408, 67] is presented. New options for controlling the properties of this device are suggested and analyzed.
Collapse
Affiliation(s)
- A A Kornyshev
- Department of Chemistry, Imperial College London, London SW7 2 AZ (UK).
| | | | | |
Collapse
|
19
|
Kuznetsov AM, Ulstrup J. Mechanisms of molecular electronic rectification through electronic levels with strong vibrational coupling. J Chem Phys 2002. [DOI: 10.1063/1.1430695] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
20
|
Zhang J, Chi Q, Kuznetsov AM, Hansen AG, Wackerbarth H, Christensen HEM, Andersen JET, Ulstrup J. Electronic Properties of Functional Biomolecules at Metal/Aqueous Solution Interfaces. J Phys Chem B 2002. [DOI: 10.1021/jp0129941] [Citation(s) in RCA: 144] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Zhang
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - Q. Chi
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - A. M. Kuznetsov
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - A. G. Hansen
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - H. Wackerbarth
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - H. E. M. Christensen
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - J. E. T. Andersen
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - J. Ulstrup
- Building 207, Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A.N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| |
Collapse
|
21
|
Kuznetsov AM, Ulstrup J. Mechanisms of in Situ Scanning Tunnelling Microscopy of Organized Redox Molecular Assemblies. J Phys Chem A 2000. [DOI: 10.1021/jp993635x] [Citation(s) in RCA: 141] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Alexander M. Kuznetsov
- The A. N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, Moscow 117071, Russia
| | - Jens Ulstrup
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| |
Collapse
|
22
|
|
23
|
Kakitani T, Kimura A, Sumi H. Theory of Excitation Transfer in the Intermediate Coupling Case. J Phys Chem B 1999. [DOI: 10.1021/jp9832185] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- T. Kakitani
- Department of Physics, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan
| | - A. Kimura
- Department of Physics, Graduate School of Science, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan
| | - H. Sumi
- Institute of Materials Science, University of Tsukuba, Tsukuba, Ibaraki 305-8573, Japan
| |
Collapse
|
24
|
Friis EP, Kharkats YI, Kuznetsov AM, Ulstrup J. In Situ Scanning Tunneling Microscopy of a Redox Molecule as a Vibrationally Coherent Electronic Three-Level Process. J Phys Chem A 1998. [DOI: 10.1021/jp9817325] [Citation(s) in RCA: 62] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Esben P. Friis
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A. N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - Yurij I. Kharkats
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A. N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - Aleksander M. Kuznetsov
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A. N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| | - Jens Ulstrup
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark, and The A. N. Frumkin Institute of Electrochemistry of the Russian Academy of Sciences, Leninskij Prospect 31, 117071 Moscow, Russia
| |
Collapse
|
25
|
Friis EP, Andersen JE, Madsen LL, Møller P, Nichols RJ, Olesen KG, Ulstrup J. Metalloprotein adsorption on Au(111) and polycrystalline platinum investigated by in situ scanning tunneling microscopy with molecular and submolecular resolution. Electrochim Acta 1998. [DOI: 10.1016/s0013-4686(98)00029-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
26
|
Dynamics of Pseudomonas aeruginosa azurin and its Cys3Ser mutant at single-crystal gold surfaces investigated by cyclic voltammetry and atomic force microscopy. Electrochim Acta 1998. [DOI: 10.1016/s0013-4686(98)99006-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
27
|
Kornyshev AA, Kuznetsov AM, Ulstrup J, Stimming U. Medium Effects on Elementary Charge Transfer Processes in Liquid and Solid Environments. J Phys Chem B 1997. [DOI: 10.1021/jp963705p] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. A. Kornyshev
- Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH (KFA), D-52425 Jülich, Germany, The A. N. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, 117071 Moscow, Russia, and Department of Chemistry, The Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - A. M. Kuznetsov
- Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH (KFA), D-52425 Jülich, Germany, The A. N. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, 117071 Moscow, Russia, and Department of Chemistry, The Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - J. Ulstrup
- Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH (KFA), D-52425 Jülich, Germany, The A. N. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, 117071 Moscow, Russia, and Department of Chemistry, The Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - U. Stimming
- Institut für Energieverfahrenstechnik, Forschungszentrum Jülich GmbH (KFA), D-52425 Jülich, Germany, The A. N. Frumkin Institute of Electrochemistry, Russian Academy of Sciences, 117071 Moscow, Russia, and Department of Chemistry, The Technical University of Denmark, DK-2800 Lyngby, Denmark
| |
Collapse
|
28
|
Andersen JE, Kornyshev AA, Kuznetsov AM, Madsen LL, Møller P, Ulstrup J. Electron tunnelling in electrochemical processes and in situ scanning tunnel microscopy of structurally organized systems. Electrochim Acta 1997. [DOI: 10.1016/s0013-4686(96)00333-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
29
|
Friis EP, Andersen JE, Madsen LL, Bonander N, Møller P, Ulstrup J. Dynamics of Pseudomonas aeruginosa azurin and its Cys3Ser mutant at single-crystal gold surfaces investigated by cyclic voltammetry and atomic force microscopy. Electrochim Acta 1997. [DOI: 10.1016/s0013-4686(97)00109-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
30
|
Motylewski T, Najbar J, Tachiya M. Competitive electron transfers in model triad systems: continuun model approach. Chem Phys 1996. [DOI: 10.1016/s0301-0104(96)00175-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
31
|
Kuznetsov A, Ulstrup J. Resonance interference in a three-level system with dynamic coupling of the intermediate state to a vibrational mode. Mol Phys 1996. [DOI: 10.1080/00268979600100791] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
32
|
Najbar J, Tachiya M. Solvent effects on the electron transfer reactions in supramolecular systems. J Photochem Photobiol A Chem 1996. [DOI: 10.1016/1010-6030(95)04232-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
33
|
Christensen HE, Coutinho I, Conrad LS, Hammerstad-Pedersen JM, Iversen G, Jensen MH, Karlsson JJ, Ulstrup J, Xavier AV. Electron transport networks in multicentre metalloproteins. J Photochem Photobiol A Chem 1994. [DOI: 10.1016/1010-6030(94)87009-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
34
|
Cartling B. A molecular mechanism of conformational gating of electron transfer in photosynthetic reaction centra. Biophys Chem 1993. [DOI: 10.1016/0301-4622(93)85030-l] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
35
|
Hammerstad-Pedersen JM, Jensen MH, Kharkats YI, Kuznetsov AM, Ulstrup J. A view of fast charge separation in the bacterial photosynthetic reaction centre involving weak environmental damping of a populated auxiliary chlorophyll state. Chem Phys Lett 1993. [DOI: 10.1016/0009-2614(93)80017-j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
36
|
Christensen HE, Conrad LS, Hammerstad-Pedersen JM, Ulstrup J. Resonance effects in strongly exothermic long-range electron transfer and their possible implications for the behaviour of site-directed mutant proteins. FEBS Lett 1992; 296:141-4. [PMID: 1733768 DOI: 10.1016/0014-5793(92)80365-n] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Long-range electron transfer investigations of hemoproteins, blue copper and iron-sulphur proteins frequently rest on electronically excited metal centres. When the excitation energy approaches the oxidation or reduction potentials of intermediate residues the superexchange view normally used, however, fails and a variety of new dynamic features arise. These all involve population of the intermediate cation or anion residue states which can be partially or wholly vibrationally relaxed. We discuss suitable views and a new theoretical formalism for these phenomena. We also note some important implications for site-directed mutagenesis in long-range, strongly exothermic electron transfer processes.
Collapse
Affiliation(s)
- H E Christensen
- Chemistry Department A, Technical University of Denmark, Lyngby
| | | | | | | |
Collapse
|