Search Results - "Prukala, Dorota"

Time-resolved spectroscopy of the singlet excited state of betanin in aqueous and alcoholic solutions by Wendel, Monika, Nizinski, Stanislaw, Tuwalska, Dorota, Starzak, Karolina, Szot, Dominika, Prukala, Dorota, Sikorski, Marek, Wybraniec, Slawomir, Burdzinski, Gotard

“…The photophysical properties of betanin in aqueous and alcoholic solutions were determined at room temperature using ultrafast UV-vis-NIR transient absorption…”
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Riboflavin degradation products; combined photochemical and mass spectrometry approach by Insińska-Rak, Małgorzata, Prukała, Dorota, Golczak, Anna, Fornal, Emilia, Sikorski, Marek

“…[Display omitted] •Flavins photochemistry on the basis of new riboflavin derivative 3-benzylriboflavin.•Main photoproducts formed upon irradiation are…”
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Tetramethylalloxazines as efficient singlet oxygen photosensitizers and potential redox-sensitive agents by Golczak, Anna, Prukała, Dorota, Sikorska, Ewa, Gierszewski, Mateusz, Cherkas, Volodymyr, Kwiatek, Dorota, Kubiak, Adam, Varma, Naisargi, Pędziński, Tomasz, Murphree, Shaun, Cibulka, Radek, Mrówczyńska, Lucyna, Kolanowski, Jacek Lukasz, Sikorski, Marek

“…Tetramethylalloxazines (TMeAll) have been found to have a high quantum yield of singlet oxygen generation when used as photosensitizers. Their electronic…”
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UV–vis spectroscopy combined with azastilbene probe as a tool for testing basicity of mesoporous silica modified with nitrogen compounds by Stawicka, Katarzyna, Prukała, Dorota, Siodła, Tomasz, Sikorski, Marek, Ziolek, Maria

“…[Display omitted] •The novelty is used the NBSB as a probe of basicity coming from nitrogen species anchored to MCF.•The interaction between basic sites and…”
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New compounds via Mannich reaction of cytosine, paraformaldehyde and cyclic secondary amines by Prukała, Dorota

“…The Mannich reaction of cytosine, paraformaldehyde and cyclic secondary amines in the presence of acetic acid gives derivatives of…”
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Study of photophysical properties of 5-deazaalloxazine and 1,3-dimethyl-5-deazaalloxazine in dependence of pH using different spectral techniques by Prukała, Dorota, Gierszewski, Mateusz, Karolczak, Jerzy, Sikorski, Marek

“…The photophysical properties of 5-deazaalloxazine and 1,3-dimethyl-5-deazalloxazine at different pH values were characterized using absorption spectra,…”
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Acid–Base Equilibriums of Lumichrome and its 1-Methyl, 3-Methyl, and 1,3-Dimethyl Derivatives by Prukała, Dorota, Sikorska, Ewa, Koput, Jacek, Khmelinskii, Igor, Karolczak, Jerzy, Gierszewski, Mateusz, Sikorski, Marek

“…Lumichrome photophysical properties at different pH were characterized by UV–vis spectroscopy and steady-state and time-resolved fluorescence techniques, in…”
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Photophysical properties of betaxanthins: miraxanthin V – insight into the excited-state deactivation mechanism from experiment and computations by Niziński, Stanisław, Wendel, Monika, Rode, Michał F., Prukała, Dorota, Sikorski, Marek, Wybraniec, Sławomir, Burdziński, Gotard

“…Miraxanthin V is a betaxanthin dye occurring in Caryophyllales plants. This work describes its photophysical properties in aqueous and alcoholic solutions…”
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Flavin Photocatalysts for Visible‐Light [2+2] Cycloadditions: Structure, Reactivity and Reaction Mechanism by Mojr, Viktor, Pitrová, Gabriela, Straková, Karolína, Prukała, Dorota, Brazevic, Sabina, Svobodová, Eva, Hoskovcová, Irena, Burdziński, Gotard, Slanina, Tomáš, Sikorski, Marek, Cibulka, Radek

“…New photocatalysts from the flavin family were found to mediate the [2+2] photocycloaddition reaction. 3‐Butyl‐10‐methyl‐5‐deazaflavin (3 a) and…”
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Analytics of Quinine and its Derivatives by Kluska, Mariusz, Marciniuk-Kluska, Anna, Prukała, Dorota, Prukała, Wiesław

“…The objective of this study was to perform a synthesis and analysis of the most important information on quinine and its derivatives, which are still very…”
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The effects of pH and hydrogen bonds on photophysical properties of N-(4-bromobenzyl) substituted hydroxystilbazolium hemicyanine and merocyanine by Prukała, Dorota, Prukała, Wiesław, Gierszewski, Mateusz, Karolczak, Jerzy, Khmelinskii, Igor, Sikorski, Marek

“…Photophysical properties of (E)-1-(4-bromobenzyl)-4-(4-hydroxy-3-methoxystyryl) pyridinium bromide existing in equilibrium of its protonated (BSHB) and…”
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Influence of pH on spectral and photophysical properties of 9-methyl-5-deazaalloxazine and 10-ethyl-5-deaza-isoalloxazine by Prukała, Dorota, Gierszewski, Mateusz, Pędziński, Tomasz, Sikorski, Marek

“…•Protonation/deprotonation equilibria for derivatives of 5-deazaflavins in the ground and in the excited state are proposed.•Prototropic equilibria for…”
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Spectroscopy and photophysics of trimethyl-substituted derivatives of 5-deazaalloxazine. Experimental and theoretical approaches by Prukała, Dorota, Gierszewski, Mateusz, Kubicki, Maciej, Pędziński, Tomasz, Sikorska, Ewa, Sikorski, Marek

“…[Display omitted] •Photophysical properties of newly synthesized 5-deazaalloxazines were presented.•Fluorescence lifetime measurements were performed in…”
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Spectroscopy and Photophysics of Monomethyl-Substituted Derivatives of 5-Deazaalloxazine and 10-Ethyl-5-Deaza-Isoalloxazine by Prukała, Dorota, Taczkowska, Magdalena, Gierszewski, Mateusz, Pędziński, Tomasz, Sikorski, Marek

“…Steady-state and time-resolved spectra were used to describe the singlet and triplet states of 8-methyl-5-deazaalloxazine (8-Me-5-DAll),…”
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Determination of Quinine, Quinidine, and Cinquinidine by Capillary Electrophoresis by Kluska, Mariusz, Marciniuk-Kluska, Anna, Prukała, Dorota, Prukała, Wiesław

“…This article presents the results of the research on a newly developed methodology for the separation and determination of quinine and its two derivatives. The…”
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Electron ionization mass spectrometric study of substituted alloxazine-5-oxides and iso-alloxazine-5-oxide by Prukała, Dorota, Sikorski, Marek

“…The fragmentation pathways in electron ionization (EI) mass spectra of a series of new N(5)‐oxides of alloxazines and iso‐alloxazine are presented, and…”
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Ultrafast internal conversion in neobetanin in comparison to betacyanins by Wendel, Monika, Nizinski, Stanislaw, Prukala, Dorota, Sikorski, Marek, Wybraniec, Slawomir, Burdzinski, Gotard

“…S1 state deactivation in betacyanin-related dyes is controlled by: solvent viscosity, the strength of solute-solvent hydrogen bonds and the possibility of…”
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Determination of Quinine and its Derivatives with High-Performance Liquid Chromatography by Kluska, Mariusz, Komasińska, Magdalena, Prukała, Dorota, Marciniuk-Kluska, Anna, Kondrzycka-Dąda, Aneta, Prukała, Wiesław

“…This article presents the results deriving from research made on the development of optimal conditions for chromatographic separation and determination of such…”
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SUCCESSFUL SEPARATION AND DETERMINATION OF ISOMERS OF CYTOSINE DERIVATIVES FOR HPLC by Kluska, Mariusz, Prukała, Dorota, Prukała, Wiesław, Kondrzycka-Dąda, Aneta, Komasińska, Magdalena, Małkiewicz, Konrad

“…The work presents research results on separation and determination of three isomers: 1-N-o-(m- or p-)bromobenzyl-[5-(4′-morpholinyl)methyl]cytosines. The…”
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Letter: Electron Impact Mass Spectrometry Study of a Series of Substituted 5-Aminoalkylmethyl-Cytosines and Their 1-N-(o-, m- and p-)Bromobenzyl-Substituted Derivatives by Prukała, Dorota

“…The electron-impact mass spectra of 5-aminoalkylmethyl-substituted cytosine and of their 1-N-o-(m- or p-) bromobenzyl-substituted derivatives are discussed…”
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