In: Angewandte Chemie, 2013, vol. 125, no. 17, p. 4780-4783
Einkristall-zu-Einkristall-Umwandlungen sind durch Ionenaustausch- und Transportreaktionen durch supramolekulare Kanäle möglich, die aus Kronenether- Molekülen bestehen und Trihalogenid-Ionen als Gerüst nutzen. In kinetischen Messungen des Ionentransports bei unterschiedlichen Temperaturen wurde die Aktivierungsenergie für solche Systeme bestimmt, und ein schneller Austausch zwischen K+-...
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In: Angewandte Chemie International Edition, 2013, vol. 52, no. 17, p. 4682–4685
Single-crystal to single-crystal transformations are possible by ion-exchange and transport reactions through supramolecular channels that are composed of crown ether molecules and use trihalide ions as scaffolds. Kinetic measurements of ion transport at different temperatures provide activation energy data and show that a very fast.
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In: Angewandte Chemie International Edition, 2020, vol. 59, no. 30, p. 12331-12336
Anaerobic microorganisms of the Geobacter genus are effective electron sources for the synthesis of nanoparticles, for bioremediation of polluted water, and for the production of electricity in fuel cells. In multistep reactions, electrons are transferred via iron/heme cofactors of c‐type cytochromes from the inner cell membrane to extracellular metal ions, which are bound to outer membrane...
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In: Chemical Reviews, 2013, vol. 113, no. 7, p. 4708–4754
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In: Angewandte Chemie International Edition, 2011, vol. 50, no. 8, p. 1926-1930
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In: Pure and Applied Chemistry, 2001, vol. 73, no. 3, p. 449-453
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In: Chimia, 2012, vol. 66, no. 6, p. 364-367
Electron transfer (ET) through peptides and proteins is a key biochemical process, which involves radicals and radical ions as reactive intermediates. We have developed an assay that allows us to study this fundamental chemical reaction.
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In: The Journal of Physical Chemistry B, 2014, vol. 118, no. 16, p. 4261–4272
Charge transfer in peptides and proteins can occur on different pathways, depending on the energetic landscape as well as the coupling between the involved orbitals. Since details of the mechanism and pathways are difficult to access experimentally, different modeling strategies have been successfully applied to study these processes in the past. These can be based on a simple empirical pathway...
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In: The Journal of Physical Chemistry B, 2012, vol. 116, p. 2284–2293
Charge transfer within and between biomolecules remains a highly active field of biophysics. Due to the complexities of real systems, model compounds are a useful alternative to study the mechanistic fundamentals of charge transfer. In recent years, such model experiments have been underpinned by molecular simulation methods as well. In this work, we study electron hole transfer in helical model...
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In: Particle & Particle Systems Characterization, 2020, vol. 37, no. 5, p. 1900419
Metal nanoparticles (NPs), chalcogenides, and carbon quantum dots can be easily synthesized from whole microorganisms (fungi and bacteria) and cell‐free sterile filtered spent medium. The particle size distribution and the biosynthesis time can be somewhat controlled through the biomass/metal solution ratio. The biosynthetic mechanism can be explained through the ion‐reduction theory and...
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