| Autor: |
Utterback, James K., Ruzicka, Jesse L., Keller, Helena R., Pellows, Lauren M., Dukovic, Gordana |
| Zdroj: |
Annual Review of Physical Chemistry; 2020, Vol. 71, p335-259, 25p |
| Abstrakt: |
This review summarizes progress in understanding electron transfer from photoexcited nanocrystals to redox enzymes. The combination of the lightharvesting properties of nanocrystals and the catalytic properties of redox enzymes has emerged as a versatile platform to drive a variety of enzymecatalyzed reactions with light. Transfer of a photoexcited charge from a nanocrystal to an enzyme is a critical first step for these reactions. This process has been studied in depth in systems that combine Cd-chalcogenide nanocrystals with hydrogenases. The two components can be assembled in close proximity to enable direct interfacial electron transfer or integrated with redox mediators to transport charges. Time-resolved spectroscopy and kinetic modeling have been used to measure the rates and efficiencies of the electron transfer. Electron transfer has been described within the framework of Marcus theory, providing insights into the factors that can be used to control the photochemical activity of these biohybrid systems. The range of potential applications and reactions that can be achieved using nanocrystalenzyme systems is expanding, and numerous fundamental and practical questions remain to be addressed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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