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Mostrando ítems 665-684 de 823

    • closedAccess   Submicellar and micellar reversed-phase liquid chromatographic modes applied to the separation of β-blockers 

      Ruiz Ángel, M. J.; Torres Lapasio, José Ramón; García Álvarez-Coque, M. C.; Carda-Broch, Samuel Elsevier (2009)
      The behaviour of a reversed-phase liquid chromatographic (RPLC) system (i.e. elution order, resolution and analysis time), used in the analysis of β-blockers with acetonitrile-water mobile phases, changes drastically upon ...

    • openAccess   Substrate promiscuity in DNA methyltransferase M.PvuII. A mechanistic insight 

      Aranda, Juan; Roca, Maite; Tuñón, Iñaki Royal Society of Chemistry (2012)
      M.PvuII is a DNA methyltransferase from the bacterium Proteus vulgaris that catalyzes methylation of cytosine at the N4 position. This enzyme also displays promiscuous activity catalyzing methylation of adenine at the N6 ...

    • openAccess   Superior performance of macroporous over gel type polystyrene as a support for the development of photo-bactericidal materials 

      Felip-León, Carles; Arnau del Valle, Carla; Pérez-Laguna, Vanesa; Millán-Lou, María Isabel; Miravet, Juan; Mikhailov, Maxim; Sokolov, Maxim; Rezusta López, Antonio; Galindo, Francisco Royal Society of Chemistry (2017-07)
      A hexanuclear molybdenum cluster [Mo6I8Ac6]2− (1) has been ionically bound onto macroporous (Pmp) and gel-type (Pgel) resins and their performance as materials for the photodynamic inactivation of microorganisms has been ...

    • closedAccess   Surface-dependent photocatalytic and biological activities of Ag2CrO4: Integration of experiment and simulation 

      Assis, Marcelo de; Foggi, Camila Cristina; Teodoro , Vinícius; De Campos da Costa, Joao Paulo; Silva, Carlos Eduardo; Robeldo, Thaiane; Caperucci, Priscila Fernanda; Vergani, Carlos; Borra, Ricardo Carneiro; Sorribes, Iván; Gouveia, Amanda; San-Miguel, Miguel A.; Andres, Juan; Longo, Elson Elsevier (2021-04-15)
      In this work, we present a joint experimental and theoretical study towards unveiling the photocatalytic (photodegradation of Rhodamine B), the antifungal (towards Candida glabrata) and cytotoxicity (against the L929 cell ...

    • openAccess   Surface-dependent properties of α-Ag2WO4: a joint experimental and theoretical investigation 

      Laier, Leticia O.; Assis, Marcelo de; Foggi, Camila C.; Gouveia, Amanda; Vergani, Carlos; Santana, Luís C. L.; Cavalcante, Laécio Santos; Andres, Juan; Longo, Elson Springer (2020-06-10)
      Alpha-silver tungstate (α-Ag2WO4) has attracted much attention in recent years due to its unique crystal and electronic structures, which are suitable for a wide range of applications. This work presents a more realistic ...

    • openAccess   Surfactant effects in the morphology and the photocatalytic activity of the BaMoO4 crystals 

      Gouveia, Amanda; Bellucci, Gustavo Venancio; Ribeiro , Lara Kelly; Assis, Marcelo de; Rosa, Ieda; Longo, Elson; Andres, Juan; San-Miguel, Miguel A. Sao Paulo State University. Institute of Chemistry (2022-04-11)
      This paper discloses the effect of the surfactant sodium dodecyl sulfate (SDS) in the morphology and the photocatalytic activity of BaMoO4 crystals. Experimental techniques were applied to study the order-disorder degree ...

    • openAccess   Surfactant-Mediated Morphology and Photocatalytic Activity of α‑Ag2WO4 Material 

      Guerra Macedo, Nadia; Gouveia, Amanda; Alvarez Roca, Roman; Assis, Marcelo de; Gracia, Lourdes; Andres, Juan; Leite, Edson R.; Longo, Elson American Chemical Society (2018-03)
      In the present work, the morphology (hexagonal rod-like vs cuboid-like) of an α-Ag2WO4 solid-state material is manipulated by a simple controlled-precipitation method, with and without the presence of the anionic surfactant ...

    • openAccess   Symmetries in the collective excitations of an electron gas in core-shell nanowires 

      Rollo Valls, Miguel; Bertoni, Andrea; Goldoni, Guido American Physical Society (2014)
      We study the collective excitations and inelastic light-scattering cross section of an electron gas confined in a GaAs/AlGaAs coaxial quantum well. These systems can be engineered in a core-multishell nanowire and inherit ...

    • openAccess   Symmetry-induced hole-spin mixing in quantum dot molecules 

      Planelles, Josep; Rajadell Viciano, Fernando; Climente, Juan I. American Physical Society (2015)
      We investigate theoretically the spin purity of single holes confined in vertically coupled GaAs/AlGaAs quantum dots (QDs) under longitudinal magnetic fields. A unique behavior is observed for triangular QDs, by which ...

    • openAccess   Synthesis and Biological Evaluation of Small Molecules as Potential Anticancer Multitarget Agents 

      Pla López, Alberto; Castillo, Raquel; Cejudo Marín, Rocío; García Pedrero, Olaya; Bakir Laso, Mariam; Falomir, Eva; Miguel Carda MDPI (2022-06-24)
      Twenty-six triazole-based derivatives were designed for targeting both PD-L1 (programmed death receptor ligand 1) and VEGFR-2 (vascular endothelial growth factor receptor 2). These compounds were synthetized and biologically ...

    • closedAccess   Synthesis and evaluation of α-Ag2WO4 as novel antifungal agent 

      Foggi, Camila Cristina; Fabbro, Maria T.; Santos, Luís P. S.; De Santana, Yuri V. B.; Vergani, Carlos; Machado Maciel, Ana Lúcia; Cordoncillo, Eloisa; Andres, Juan; Longo, Elson Elsevier (2017-04-16)
      Abstract Because of the need for new antifungal materials with greater potency, microcrystals of α-Ag2WO4, a complex metal oxide, have been synthetized by a simple co-precipitation method, and their antifungal activity ...

    • closedAccess   Synthesis and Molecular and Electronic Structures of a Series of Mo3CoSe4 Cluster Complexes with Three Different Metal Electron Populations 

      Alberola Catalán, Antonio; Llusar, Rosa; Vicent Barrera, Cristian; Andres, Juan; Polo Ortiz, Victoriano; Gómez García, Carlos J. American Chemical Society (2008-03)
      The synthesis, crystal structure, and magnetic properties of [Mo3(CoCO)Se4(dmpe)3Cl3] (1), [Mo3(CoCl)Se4(dmpe)3Cl3] (2), and [Mo3(CoCl)Se4(dmpe)3Cl3](TCNQ) ([2](TCNQ)) (dmpe = 1,2-bis(dimethylphosphanyl)ethane; TCNQ = ...

    • openAccess   Synthesis and morphological transformation of BaWO4 crystals: Experimental and theoretical insights 

      Carvalho de Oliveira, Marisa; Gracia, Lourdes; Costa Nogueira, Içamira; Do Carmo Gurgel, Maria Fernanda; Rivas Mercury, José Manuel; Longo, Elson; Andres, Juan Elsevier (2016)
      BaWO4 crystals have been obtained by a co-precipitation method, and their structures were characterized by X-ray diffraction and Rietveld refinement techniques, while field emission scanning electron microscopy was utilized ...

    • openAccess   Synthesis and optical power limiting properties of heteroleptic Mo3S7 clusters 

      Recatalá Ferrandis, David; Llusar, Rosa; Barlow, Adam; Wang, Genmiao; Samoc, Marek; Humphrey, Mark G.; Gushchin, Artem L. Royal Society of Chemistry (2015)
      Substitution of the halide ligands in (Bu4N)2[Mo3S7X6] (X = Cl, Br) by diimine ligands, such as 4,4′-dimethyl-2,2′-bipyridine (dmbpy), 2,2′-bipyridine (bpy) and 1,10-phenanthroline (phen), affords the neutral heteroleptic ...

    • closedAccess   Synthesis and structure of a paramagnetic Mo3S4 incomplete cuboidal cluster with seven cluster skeletal electrons 

      Petrov, Pavel A.; Naumov, Dmitry Yu; Llusar, Rosa; Gómez García, Carlos J.; Polo Ortiz, Victoriano; Konchenko, Sergey N. Royal Society of Chemistry (2012-08)
      The electron precise incomplete cuboidal complex [Mo3S4(dppe)3Br3]Br (1a) with 6 cluster skeletal electrons (CSE) and its halogen-mixed analogue [Mo3S4(dppe)3(Br,Cl)3](Br,Cl) (1b) can be smoothly reduced to the paramagnetic ...

    • openAccess   Synthesis and structure of methoxo-terminated molybdenum and tungsten M3S4 clusters containing aminophosphine ligands 

      Beltrán Álvarez, Tomás Francisco; Llusar, Rosa Elsevier (2019)
      Trinuclear [M3S4(OCH3)3](edpp)3] + complexes, 1+ (M = Mo) and 2+ (M = W) bearing (2-aminoethyl) diphenylphosphine (edpp), have been isolated and fully characterized. Molybdenum and tungsten halide precursors react with ...

    • openAccess   Synthesis and Structure of Trinuclear W3S4 Clusters Bearing Aminophosphine Ligands and Their Reactivity toward Halides and Pseudohalides 

      Beltrán Álvarez, Tomás Francisco; Pino Chamorro, Jose Angel; Fernández-Trujillo, M. Jesús; Safont Villarreal, Vicent Sixte; García Basallote, Manuel; Llusar, Rosa American Chemical Society (2014-12-31)
      The aminophosphine ligand (2-aminoethyl)diphenylphosphine (edpp) has been coordinated to the W3(μ-S)(μ-S)3 cluster unit to afford trimetallic complex [W3S4Br3(edpp)3]+ (1+) in a one-step synthesis process with high yields. ...

    • openAccess   Synthesis of Air-Stable CdSe/ZnS Core–Shell Nanoplatelets with Tunable Emission Wavelength 

      Polovitsyn, Anatolii; Dang, Zhiya; Movilla, Jose L.; Martín García, Beatriz; Khan, Ali Hossain; Bertrand, Guillaume H. V.; Brescia, Rosaria; Moreels, Iwan American Chemical Society (2017)
      In the past few years, several protocols have been reported on the synthesis of CdSe nanoplatelets with narrow photoluminescence (PL) spectrum, high PL quantum efficiency, and short exciton lifetime. The corresponding ...

    • closedAccess   Synthesis of Anisotropic CdSe/CdS Dot-in-Giant-Rod Nanocrystals with Persistent Blue-Shifted Biexciton Emission 

      Polovitsyn, Anatolii; Khan, Ali Hossain; Angeloni, Ilaria; Grim, Joel Q.; Planelles, Josep; Climente, Juan I. American Chemical Society (2018)
      Anisotropic single-phase wurtzite CdSe/CdS nanocrystals were synthesized by colloidal chemistry, introducing ZnCl2 to increase the shell growth in the radial direction. As a result, dot-in-giant-rod nanocrystals were ...

    • closedAccess   Synthesis of brominated tetrathiafulvalenes via phosphite-mediated cross-coupling 

      Alberola Catalán, Antonio; Bosch Navarro, Conxa; Gaviña, Pablo; Tatay, Sergio Elsevier (2010)
      The synthesis of polybrominated tetrathiafulvalenes (TTF-Br<sub>n</sub>, 2-4) containing 2-4 bromine atoms via phosphite-mediated cross-coupling of bromo-substituted 1,3-dithiole-2-thiones and 1,3-dithiole-2-ones is reported. ...