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   Articles with "direct excitation" as a keyword



Photoenzymatic Reductions Enabled by Direct Excitation of Flavin-Dependent "Ene"-Reductases.

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recommendations! Published in 2020 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.0c11494

Abstract: Non-natural photoenzymatic reactions reported to date have depended on the excitation of electron donor-acceptor complexes formed between substrates and cofactors within protein active sites to facilitate electron transfer. While this mechanism has unlocked new reactivity,… read more here.

Keywords: direct excitation; excitation flavin; reductions enabled; excitation ... See more keywords

Deep-Red to Near-Infrared Light-Driven Radical Generation from Organoboron Compounds via Ligand-Induced Direct Excitation Catalysis.

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recommendations! Published in 2025 at "Journal of the American Chemical Society"

DOI: 10.1021/jacs.5c17266

Abstract: We report a catalytic strategy for generating carbon-centered radicals from organoboron compounds under deep-red to near-infrared (DR to NIR) light irradiation via direct excitation of substrate-catalyst complexes. Aza-dipyrromethene (ADP) catalysts form photoactive borate intermediates that… read more here.

Keywords: direct excitation; red near; deep red; excitation ... See more keywords

Direct excitation of Kelvin waves on quantized vortices

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recommendations! Published in 2024 at "Nature Physics"

DOI: 10.1038/s41567-024-02720-9

Abstract: Helices and spirals, prevalent across various physical systems, play a crucial role in characterizing symmetry, describing dynamics and enabling unique functionalities, all stemming from their inherent simplicity and chiral nature. Helical excitations on quantized vortices,… read more here.

Keywords: direct excitation; excitation kelvin; waves quantized; quantized vortices ... See more keywords

Direct excitation of tryptophan phosphorescence. A new method for triplet states investigation

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recommendations! Published in 2022 at "Methods and Applications in Fluorescence"

DOI: 10.1088/2050-6120/ac4c9a

Abstract: We studied room temperature phosphorescence of tryptophan (TRP) embedded in poly (vinyl alcohol) films. With UV (285 nm) excitation, the phosphorescence spectrum of tryptophan appears at about 460 nm. We also observed the TRP phosphorescence… read more here.

Keywords: excitation tryptophan; excitation; phosphorescence; direct excitation ... See more keywords