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Mostrando ítems 61-80 de 692

    • closedAccess   Bacterial base excision repair enzyme Fpg recognizes bulky N7-substituted-FapydG lesion via unproductive binding mode 

      Coste, Franck; Ober, Matthias; Le Bihan, Yann-Vaï; Izquierdo Arcusa, María Ángeles (2012-07-18)
      Fpg is a bacterial base excision repair enzyme that removes oxidized purines from DNA. This work shows that Fpg and its eukaryote homolog Ogg1 recognize with high affinity FapydG and bulky N7-benzyl-FapydG (Bz-FapydG). The ...

    • openAccess   Base Supported Ionic Liquid-Like Phases as catalysts for the Batch and Continuous-Flow Henry Reaction 

      Garcia-Verdugo, Eduardo; Erythropel, Hanno; Burguete, M. Isabel; Sans, Victor; Luis, Santiago V. Royal Society of Chemistry (2008)
      New solid basic catalysts immobilised onto supported ionic liquid-like phases have been prepared, having suitable mechanical stability for their use for the continuous-flow Henry reaction

    • openAccess   Basically, nucleophilicity matters little: towards unravelling the supramolecular driving forces in enzyme-like CO2 conversion 

      Esteve Franch, Ferran; Altava, Belen; Luis, Santiago V.; Garcia-Verdugo, Eduardo Royal Society of Chemistry (2022-08-03)
      The reaction mechanism for the cycloaddition of CO2 to styrene oxide in the presence of macrocyclic pseudopeptides has been studied using DFT methods. Computational calculations indicate that the unprecedented catalytic ...

    • openAccess   Behavior of Bi2S3 under ultrasound irradiation for Rhodamine B dye degradation 

      Teodoro , Vinícius; Barrios Trench, Aline; da Trindade, Letícia; jacomaci, natalia; Beltrán Mir, Héctor; Andres, Juan; Cordoncillo, Eloisa; Bettini, Jefferson; Longo, Elson Elsevier (2021-10-16)
      In this study, we have demonstrated that Bi2S3 semiconductor under ultrasound behaves as a piezoelectric material, facilitating the transfer of electrons and holes, thus enabling the formation of oxidizing agents. In the ...

    • closedAccess   Beige materials for the ceramic industry: AlxVyFe1-xP1-yO4 (0.0 ≤ x ≤ 0.3, 0.0 ≤ y ≤ 0.1) solid solutions 

      Tena, M. A. Elsevier (2019-05)
      AlxVyFe1-xP1-yO4 (0.0 ≤ x ≤ 0.3, 0.0 ≤ y ≤ 0.1) compositions were synthesized via the chemical co-precipitation method. At 500 °C, α-FePO4 berlinite crystallizes together with FePO4 tridymite, Fe(III) occupying tetrahedral ...

    • closedAccess   Binding Modes and Selectivity of Ruthenium Complexes to Human Telomeric DNA G‐Quadruplexes 

      RUBIO-MAGNIETO, JENIFER; Kajouj, Sofia; Di Meo, Florent; Fossépré, Mathieu; Trouillas, Patrick; Norman, Patrick; Linares, Mathieu; Moucheron, Cécile; Surin, Mathieu Wiley (2018-10-17)
      Metal complexes constitute an important class of DNA binders. In particular, a few ruthenium polyazaaromatic complexes are attractive as “light switches” because of their strong luminescence enhancement upon DNA binding. ...

    • openAccess   Biocatalytic hydrolysis of di-urethane model compounds in ionic liquid reaction media 

      Salas, Rebeca; Villa, Rocio; Cano, Sergio; Nieto Cerón, Susana; Garcia-Verdugo, Eduardo; Lozano, Pedro Elsevier (2024-01-11)
      The suitability of different enzymes to carry out the hydrolysis of two-different toluene-based urethane model compounds (i.e. bis(2-methoxyethyl) (4-methyl-1,3-phenylene)dicarbamate, and bis(2-methoxyethyl) (2-methyl-1, ...

    • closedAccess   Bioinspired Chemistry Based on Minimalistic Pseudopeptides 

      Luis, Santiago V.; Alfonso Rodríguez, Ignacio ACS Publications (2014)
      For years researchers have tried to understand the molecular behavior of complex biomolecules through the development of small molecules that can partially mimic their function. Now researchers are implementing the reverse ...

    • openAccess   Biological reactor retrofitting using CFD-ASM modelling 

      Climent, Javier; Basiero, L.; Martinez Cuenca, Raul; Berlanga Clavijo, José Guillermo; Julian-Lopez, Beatriz; chiva, sergio Elsevier (2018-09-15)
      In recent years, the interest in modelling activated sludge (AS) systems by means of Computational Fluid Dynamics (CFD) techniques has significantly increased. This work shows a successful case study combining CFD hydrodynamics ...

    • openAccess   Biomimetic self-assembly of tetrapeptides into fibrillar networks and organogels 

      Iqbal, Sajid; Miravet, Juan; Escuder, Beatriu WILEY-VCH (2008)
      The self-assembly features of a family of tetrapeptides inspired in silk structure are presented. An exhaustive study of the influence of the terminal alkyl chain length in this process is undertaken. Scanning electron ...

    • openAccess   Bis (imidazolium) salts derived from amino acids as receptors and transport agents for chloride anions 

      González, Laura; Altava, Belen; Burguete, M. Isabel; Escorihuela, Jorge; Hernando, Elsa; Luis, Santiago V.; Quesada, Roberto; Vicent Barrera, Cristian Royal Society of Chemistry (2015-04)
      The binding properties of bis(imidazolium) hosts 1a–c derived from amino acids towards different anions have been studied by 1H NMR titration experiments in 95[thin space (1/6-em)]:[thin space (1/6-em)]05 CD3CN[thin space ...

    • closedAccess   Bis(amino amides) derived from natural amino acids as chiral receptors for N-protected dicarboxylic amino acids 

      Altava, Belen; Burguete, M. Isabel; Carbó Mestre, Noèlia; Luis, Santiago V.; Martí-Centelles, Vicente; Vicent Barrera, Cristian Elsevier (2013-01)
      A family of bis(amino amides) derived from natural amino acids has been synthesized and tested for the NMR enantiodiscrimination, as chiral receptors, of some N-protected dicarboxylic amino acids. The influence of the amino ...

    • openAccess   Bisferrocenyl-functionalized pseudopeptides: access to separated ionic and electronic contributions for electrochemical anion sensing 

      Pandey, Mrituanjay D.; Martí-Centelles, Vicente; Burguete, M. Isabel; Montoya, Noemí; Luis, Santiago V.; García España, Enrique; Doménech Carbó, Antonio The Royal Society of Chemistry (2016-03)
      Pseudopeptidic receptors containing ferrocene fragments have been prepared and their response to a series of anions was measured by a voltammetry of microparticles methodology. Such water-insoluble compounds yield ...

    • closedAccess   Blue-violet ceramic pigments based on Co and Mg Co2−xMgxP2O7 diphosphates 

      Llusar, Mario; Zielinska, Agnieszka Tymosiak; Tena, M. A.; Badenes March, José Antonio; Monrós, Guillermo Elsevier (2010)
      Solid solutions of Co and Mg diphosphates with compositions Co2−xMgxP2O7 (x = 0, 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5 and 1.8) have been prepared and characterized for the first time as alternative low-toxicity blue ceramic ...

    • openAccess   Breakthroughs in Medicinal Chemistry: New Targets and Mechanisms, New Drugs, New Hopes–7 

      Gütschow, Michael; Vanden Eynde, Jean Jacques; Jampilek, Josef; Kang, Congbao; Mangoni, Arduino Aleksander; Fossa, Paola; Karaman, Rafik; Trabocchi, Andrea; Scott, Peter; Reynisson, Johannes; Rapposelli, Simona; Galdiero, Stefania; Winum, Jean-Yves; Brullo, Chiara; Prokai-Tatrai, Katalin; Sharma, Arun K.; Schapira, Matthieu; Azuma, Yasu-Taka; Cerchia, Laura; Spetea, Mariana; Torri, Giangiacomo; Collina, Simona; Geronikaki, Athina; García-Sosa, Alfonso T.; Vasconcelos, M. Helena; Sousa, Maria Emília; Kosalec, Ivan; Tuccinardi, Tiziano; Duarte, Iola; Salvador, Jorge A. R.; Bertinaria, Massimo; Pellecchia, Maurizio; Amato, Jussara; Rastelli, Giulio; Gomes, Paula A. C.; Guedes, Rita; Sabatier, Jean-Marc; Estevez-Braun, Ana; Pagano, Bruno; Mangani, Stefano; Ragno, Rino; Kokotos, George; Brindisi, Margherita; González, Florenci; Borges, Fernanda; Miloso, Mariarosaria; Rautio, Jarkko; Muñoz-Torrero, Diego MDPI (2020)
      Breakthroughs in Medicinal Chemistry: New Targets and Mechanisms, New Drugs, New Hopes is a series of editorials which is published on a biannual basis by the Editorial Board of the Medicinal Chemistry section of the journal ...

    • openAccess   Broad-Spectrum Photo-Antimicrobial Polymers Based on Cationic Polystyrene and Rose Bengal 

      Gavara, Raquel; de Llanos Frutos, Rosa; Pérez Laguna, Vanesa; Arnau del Valle, Carla; Miravet, Juan; Rezusta López, Antonio; Galindo, Francisco Frontiers Media (2021-05-24)
      New strategies to fight bacteria and fungi are necessary in view of the problem of iatrogenic and nosocomial infections combined with the growing threat of increased antimicrobial resistance. Recently, our group has prepared ...

    • closedAccess   Brown ceramic pigments based on chromium(III)-doped titanite obtained by spray pyrolysis 

      Lyubenova, Teodora; Ocaña Jurado, Manuel; Carda Castelló, Juan Bautista Elsevier (2008)
      Cr-doped titanite (CaTiSiO5) pigments were synthesized through spray pyrolysis of aerosols generated from aqueous solutions containing colloidal silica, calcium chloride, titanium(IV) oxychloride and chromium(III) nitrate. ...

    • openAccess   Brønsted acid catalyzed Prins-Ritter reaction for selective synthesis of terpenoid-derived 4-amidotetrahydropyran compounds 

      Sidorenko, A. Yu; Kurban, Yu.M.; Peixoto, A.F.; Li-Zhulanov, N.S.; Sánchez-Velandia, Julián E.; Aho, A.; Wärnå, Johan; Gu, Yu; Volcho, Konstantin; Salakhutdinov, Nariman; Murzin, D.Yu; Agabekov, Vladimir Elsevier (2023-01-05)
      A number of SO3H-functionalized solids (biochar, montmorillonites, carbon and halloysite nanotubes) has been studied as catalysts in the cascade Prins-Ritter reaction of (-)-isopulegol with benzaldehyde and acetonitrile ...

    • closedAccess   C2 symmetrical nickel complexes derived from α-amino amides as efficient catalysts for the enantioselective addition of dialkylzinc reagents to aldehydes 

      Escorihuela, Jorge; Altava, Belen; Burguete, M. Isabel; Luis, Santiago V. Elsevier (2013-01)
      A series of C2 symmetrical 1:2 Ni:L complexes derived from α-amino amides were studied for the enantioselective addition of dialkylzinc reagents to aldehydes. Different structural elements on the ligands seem to play an ...

    • closedAccess   Carboxylate-Functionalized Mesoionic Carbene Precursors: Decarboxylation, Ruthenium Bonding, and Catalytic Activity in Hydrogen Transfer Reactions 

      Sabater López, Sara; Müller-Bunz, Helge; albrecht, martin American Chemical Society (2016)
      Metalation of a carboxylate-functionalized pyridyl-triazolium salt containing a N1-bound pyridyl substituent either by direct means with [RuCl2(cymene)]2 or via a transmetalation procedure involving Ag2O and [RuCl2(cymene)]2 ...