Výsledky vyhledávání - "J W, Petrich"

Hypericin, Hypocrellin, and Model Compounds: Steady-State and Time-Resolved Fluorescence Anisotropies

Autor: K. Das, E. Dertz, J. Paterson, W. Zhang, G. A. Kraus, J. W. Petrich

Publikováno v: The Journal of Physical Chemistry B. 102:1479-1484

Steady-state and time-resolved fluorescence anisotropies of hypericin, hypocrellin, and five other analogues have been measured. The steady-state excitation anisotropies for each of these compounds has a broad minimum at ∼400 nm with a negative val

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57a06f7ec301f1c8f1dd3707de3060cf
https://doi.org/10.1021/jp973059+

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Hypericin and Its Perylene Quinone Analogues: Probing Structure, Dynamics, and Interactions with the Environment

Autor: M. Halder, P. K. Chowdhury, M. S. Gordon, J. W. Petrich, K. Das, J. Park, Y. Alexeev

Publikováno v: ChemInform. 37

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::39acdd968e08163a78107b21c51cfaf0
https://doi.org/10.1002/chin.200616251

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Synthesis of Hydroxy and Methoxy Perylene Quinones, Their Spectroscopic and Computational Characterization, and Their Antiviral Activity

Autor: G. Krishnamoorthy, S. P. Webb, T. Nguyen, P. K. Chowdhury, M. Halder, N. J. Wills, S. Carpenter, G. A. Kraus, M. S. Gordon, J. W. Petrich

Publikováno v: Photochemistry and Photobiology.

Hydroxy and methoxy perylene quinones are synthesized in an attempt to isolate the essential spectroscopic and biological features of light-induced antiviral agents such as hypericin and hypocrellin. Unlike their naturally occurring counterparts, the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f67fe7eefa4fdd38e8e0b6587587858
https://doi.org/10.1562/2004-11-23-ra-378

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Akademický článek

Deuterium Isotope Effect in Single Molecule Photophysics and Photochemistry of Hypericin.

Autor: Wang L; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany.; Madrid Institute for Advanced Studies, IMDEA Nanoscience, Ciudad Universitaria de Cantoblanco, C/Faraday 9, Madrid, 28049, Spain., Liu Q; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany., Buchwald A; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany., Wackenhut F; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany.; Center for Process Analysis and Technology (PA&T), School of Life Sciences.; Reutlingen Research Institute (RRI), Reutlingen University, Alteburgstraße 150, Reutlingen, 72762, Germany., Brecht M; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany.; Center for Process Analysis and Technology (PA&T), School of Life Sciences.; Reutlingen Research Institute (RRI), Reutlingen University, Alteburgstraße 150, Reutlingen, 72762, Germany., Gierschner J; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany.; Madrid Institute for Advanced Studies, IMDEA Nanoscience, Ciudad Universitaria de Cantoblanco, C/Faraday 9, Madrid, 28049, Spain., Meixner AJ; Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, Tübingen, 72076, Germany.

Publikováno v: Chemphyschem : a European journal of chemical physics and physical chemistry [Chemphyschem] 2024 Sep 16; Vol. 25 (18), pp. e202400374. Date of Electronic Publication: 2024 Jul 22.

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Does solvent influence the ground-state tautomeric population of hypericin?

Autor: J, Wen, P, Chowdhury, D B, Fulton, A, Datta, K, Das, A H, Andreotti, J W, Petrich

Publikováno v: Photochemistry and photobiology. 77(1)

Nuclear magnetic resonance measurements indicate that hypericin exists in the same "normal" tautomeric form irrespective of whether the solvent is dimethyl sulfoxide or tetrahydrofuran. This result is discussed in the context of previous experimental

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::7eab63d2e7045594351b84b8235393d3
https://pubmed.ncbi.nlm.nih.gov/12856875

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Toward the molecular flashlight: preparation, properties, and photophysics of a hypericin-luciferin tethered molecule

Autor: Jin, Wen, Pramit, Chowdhury, Nick J, Wills, Yvonne, Wannemuehler, Jaehun, Park, Sarathy, Kesavan, S, Carpenter, G A, Kraus, J W, Petrich

Publikováno v: Photochemistry and photobiology. 76(2)

The synthesis of a molecule containing hypericin and luciferin moieties joined by a tether is reported. The light-induced (in vitro) antiviral activity as well as the photophysical properties of this new compound are measured and compared with those

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::33ddd5e33bcc6cba0bc51bd1f0eab709
https://pubmed.ncbi.nlm.nih.gov/12194210

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Environment of tryptophan 57 in porcine fructose-1,6-bisphosphatase studied by time-resolved fluorescence and site-directed mutagenesis

Autor: J, Wen, S W, Nelson, R B, Honzatko, H J, Fromm, J W, Petrich

Publikováno v: Photochemistry and photobiology. 74(5)

The environment of Trp57, introduced by the mutation of a tyrosine in the dynamic loop of porcine liver fructose-1,6-bisphosphatase (FBPase), was examined using time-resolved fluorescence and directed mutation. The Trp57 enzyme was studied previously

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::359f413365fd5b9160b8eadf98a914e8
https://pubmed.ncbi.nlm.nih.gov/11723795

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