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Best results in : Research Potential Pokaż wszystkie wyniki (3)
Search results for: photoisomerization
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Zespół Katedry Fizyki Teoretycznej i Informatyki Kwantowej
Research PotentialPrace naukowe prowadzone w Katedrze dotyczą współczesnych zagadnień fizyki teoretycznej i informatyki kwantowej. W ramach współpracy międzynarodowej stworzony został w Katedrze program komputerowy umożliwiający obliczanie relatywistycznych przejść w atomach i jonach. Jego celem jest dostarczenie danych atomowych potrzebnych do interpretacji pomiarów plazmy astrofizycznej i laboratoryjnej. Dane atomowe obejmują nie tylko siły oscylatorów...
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KatedrA Chemii Fizycznej
Research Potential1.Termodynamika i struktura roztworów, oddziaływania międzycząsteczkowe w roztworach - badania termodynamiczne, spektroskopowe i teoretyczne. 2. Fizykochemiczne podstawy analizy środowiskowej.
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Katedra Technologii Leków i Biochemii
Research PotentialRacjonalne projektowanie, synteza i badanie właściwości biologicznych nowych związków o działaniu przeciwnowotworowym lub przeciwgrzybowym
Other results Pokaż wszystkie wyniki (5)
Search results for: photoisomerization
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Iso-Partricin, an Aromatic Analogue of Amphotericin B: How Shining Light on Old Drugs Might Help Create New Ones
PublicationPartricin is a heptaene macrolide antibiotic complex that exhibits exceptional antifungal activity, yet poor selective toxicity, in the pathogen/host system. It consists of two compounds, namely partricin A and B, and both of these molecules incorporate two cis-type bonds within their heptaenic chromophores: 28Z and 30Z. In this contribution, we have proven that partricins are susceptible to a chromophore-straightening photoisomerization...
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Anion binding by p-aminoazobenzene-derived aromatic amides: spectroscopic and electrochemical studies
PublicationThe synthesis and complexing properties of p-aminoazobenzene-derived mono-, bis-, and trisamides were described. Ligands 3 and 4 bind anions, including fluorides, chlorides, bromides, acetates, benzoates, dihydrogen phosphates, hydrogen sulfates, and p-toluenesulfonates, in chloroform forming 1 : 1 complexes. The highest value of stability constant was evaluated for the 4-F− complex (log K = 5.63 ± 0.21). On the basis of 1H NMR,...
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Photoresponsive Amide-Based Derivatives of Azobenzene-4,4′-Dicarboxylic Acid—Experimental and Theoretical Studies
PublicationAzobenzene derivatives are one of the most important molecular switches for biological and material science applications. Although these systems represent a well-known group of compounds, there remains a need to identify the factors influencing their photochemical properties in order to design azobenzene-based technologies in a rational way. In this contribution, we describe the synthesis and characterization of two novel amides...
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Light-Modulated Sunscreen Mechanism in the Retina of the Human Eye
PublicationThe functioning of the human eye in the extreme range of light intensity requires a combination of the high sensitivity of photoreceptors with their photostability. Here, we identify a regulatory mechanism based on dynamic modulation of light absorption by xanthophylls in the retina, realized by reorientation of pigment molecules induced by trans–cis photoisomerization. We explore this photochemically switchable system using chromatographic...
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Linear and Nonlinear Optical Properties of Azobenzene Derivatives Modified with an (Amino)naphthalene Moiety
PublicationThe design of two-photon absorbing azobenzene (AB) derivatives has received much attention; however, the two-photon absorption (2PA) properties of bis-conjugated azobenzene systems are relatively less explored. Here, we present the synthesis of six azobenzene derivatives and three bisazobenzenes substituted (or not) at para position(s) with one or two amino group(s). Their linear and nonlinear absorption properties are studied...