Electrochemistry of complex molecular and biomolecular scale entities
| Autor: | Christian Engelbrekt, Yueqi Li, Renat R. Nazmutdinov, Jens Ulstrup, Xiaomei Yan, Jiawei Yan, Tamara T. Zinkicheva, Xinxin Xiao, Zixiao Wang, Jing Tang, Dmitrii V. Glukhov |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Nanostructure
Materials science Nanotechnology 02 engineering and technology 010402 general chemistry Electrochemistry 01 natural sciences Scanning tunnelling spectroscopy Stochastic conductivity of redox molecules Sulfite oxidase Analytical Chemistry chemistry.chemical_compound Microscopy Monolayer Molecule Quantum tunnelling chemistry.chemical_classification Biomolecule 021001 nanoscience & nanotechnology 0104 chemical sciences Cysteine on Au(100) Ferrocene chemistry Single-entity electrochemistry 0210 nano-technology |
| Zdroj: | Engelbrekt, C, Glukhov, D, Li, Y, Nazmutdinov, R R, Tang, J, Ulstrup, J, Wang, Z, Xiao, X, Yan, J, Yan, X & Zinkicheva, T 2021, ' Electrochemistry of complex molecular and biomolecular scale entities ', Current Opinion in Electrochemistry, vol. 26, 100670 . https://doi.org/10.1016/j.coelec.2020.100670 |
| Popis: | Structural mapping of intermediate size and large molecules and biomolecules at ultra-high resolution using single-crystal electrodes and in situ scanning tunnelling microscopy continues to disclose surprising findings. In situ scanning tunnelling spectroscopy has also recently disclosed new electrochemical conductivity features at the level of the single molecule. We overview briefly elements of this development over the last few years, with focus on three recent discoveries: (1) a new packing mode of a core monolayer target thiol, the amino acid cysteine (Cys) on Au(100)-electrodes, quite different from Cys packing on Au(111)- and Au(110)-electrodes; (2) transition of a core ferrocene in situ scanning tunnelling spectroscopy probe from stochastic single-molecule to macroscopic behaviour, a concept at the heart of nanoscience; and (3) unexpected behaviour of the large molybdenum enzyme sulfite oxidase, when going from macroscopic to single-molecule electrochemistry. We compare these studies with other recent discoveries of single-molecule protein conductivity and molecular scale inorganic nanostructures. |
| Databáze: | OpenAIRE |
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