Browsing by Title Artículos de revistas

Now showing items 317-336 of 2801

    • Biosorption of metal ions by Azotobacter vinelandii 
      Cotoras,; Millar,; Viedma,; Pimentel,; Mestre, (Kluwer Academic Publishers, 1992)
      Azotobacter vinelandii was better than either Derxia gummosa or Rhizobium trifolii for sorption of UO2 2+. Its maximum binding capacity was 0.25 mmol UO2 2+/g dry biomass with an affinity constant of 333 l/mmol at pH 4.1 ...
    • Bis(2,6-diamino-1H-purin-3-ium) di-mu-croconato-kappa(3) O,O ':O '';kappa(3) O:O ',O ''-bis[tetraaqua(cro ... 
      Atria Salas, Ana María; Morel, Mauricio; Garland, María Teresa; Baggio, Ricardo (WILEY-BLACKWELL PUBLISHING, 2011-01)
      The structure of the ionic title compound, (C(5)H(7)N(6))(2)[Nd(2)(C(5)O(5))(4)(H(2)O)(8)], consists of anionic dimers built around an inversion centre and is made up of an NdIII cation, two croconate (croco) dianions and ...
    • Bis(3,5-dibromo-N-o-tolylsalicylaldiminato)copper(ll) 
      Manríquez Castro, Víctor; Costamagna, J.; Vargas, J.; Von Schnering, H. G.; Paters, K. (1990-01-30)
      [Cu(C~4H~oBr2NO)2], Mr=799.6, monoclinic, P2~/n, a=17.866(5), b=21-963(6), c = 14.128 (4) A, ,8 = 93"16 (2) ° V = 5535 (2) A 3, Z= 8, Dx =l'919Mgm -3, /z=6.54mm -~, A(MoKa) = 0-71069 A, F(000) = 3096, T= 293 K, final R ...
    • [Bis-dimethylaminomethylphenyl)methyl-silanol-N,O]dibromocobalt(II) 
      Baggio, Ricardo; Garland, María Teresa; Manzur Saffie, Jorge; Spodine Spiridonova, Evgenia (International Union of Crystallography, 1995)
      The CoII atom in the title complex. [CoBr2(C19H28N2O-Si)], has a tetrahedral environment and is coordinated to bis(o-dimethylaminomethylphenyl)methylsilanol in a bidenate fashion and to two Br anions
    • Blue-Fluorescent Probes for Lipid Droplets Based on Dihydrochromeno-Fused Pyrazolo- and Pyrrolopyridines 
      Becerra-Ruiz, Martín; Vargas, Victor; Jara, Patricio; Tirapegui, Cristian; Carrasco, Carlos; Núñez González, Marco; Lezana, Nicolás; Galdámez Silva, Antonio; Vilches-Herrera, Marcelo (Wiley-VCH Verlag, 2018)
      © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim Lipid droplets (LDs) have been recognized as highly dynamic cellular organelles involved in important biological functions for the survival of organisms such as supplying ...
    • Boldo and boldine: an emerging case of natural drug development 
      Speisky Cosoy, Hernán; Cassels Niven, Bruce (1994)
      Boldo (Peumus boldus Mol.), a Chilean tree traditionally employed in folk medicine and recognized as a herbal remedy in a number of pharmacopoeias, mainly for the treatment of liver ailments, has recently been the subject ...
    • Boldo prevents UV light and nitric oxide-mediated plasmid DNA damage and reduces the expression of Hsp70 ... 
      Russo, Alessandra; Cardile, Venera; Caggia, Silvia; Günther Sapunar, Germán; Troncoso, Nicolas; Garbarino, Juan (2011)
      Objectives This study was designed to investigate the potential protective effect of a methanolic extract of Peumus boldus leaves on UV light and nitric oxide (NO)-mediated DNA damage. In addition, we investigated the ...
    • Bonding in tetrahedral Cu4(μ3-X)4L 4 Copper(I) clusters: A DFT investigation 
      Vega, Andrés; Saillard, Jean Yves (2004)
      DFT calculations on Cu4(μ3-X)4L 4 (X = H, CH3, CCH, F, Cl, Br, I; L = NH3, PH3) indicate that, regardless of its nature, X- acts essentially as a two-electron σ-type ligand and that the covalent part of the Cu⋯Cu bonding ...
    • Bottom up approaches for amino beta-CD adsorption on gold surfaces. A comparative study 
      García, Marycarmen; Bollo Dragnic, Soledad; Rivas, Gustavo A.; Ferreyra, Nancy F.; Yáñez, Claudia (Elsevier, 2016)
      The immobilization of three amino-beta-cyclodextrin derivatives on gold surfaces via different bottom-up approaches was evaluated using cyclic voltammetry and surface plasmon resonance. Direct adsorption on gold and covalent ...
    • Bread quality and nutritional value of ‘Marraqueta’ and ‘Hallulla’ supplemented with full‐fat sweet lupin ... 
      BALLESTER,; CASTRO,; CERDA,; GARCIA,; YANEZ, (1988)
      ‘Marraqueta’ and ‘Hallulla’ breads, widely consumed in Chile, were enriched with 6, 9 and 12% full‐fat sweet lupin flour (FFLF) containing a small amount of alkaloids (0.025%) and 42.8% protein. Physical characteristics ...
    • Bromide/chloride counterion exchange at the surfaces of dioctadecyldimethylammonium vesicles 
      Lissi Gervaso, Eduardo A.; Abuin, E. B.; Zanocco Loyola, Antonio; Backer, C. A.; Whitten, D. G. (1989)
      The exchange between bromide and chloride counterions at the surfaces of dioctadecyldimethylammonium vesicles has been examined through fluorescence quenching experiments. The quenching of the fluorescence of vesicle-incorporated ...
    • Bromide/Chtoride Counterion Exchange at the Surfaces of Dioctadecytdlmethylammonium Vesicles 
      Liss, Eduardo A.; Abuin, E. B.; Zanocco Loyola, Antonio; Backer, C. A.; Whitten, D. G. (American Chemical Society, 1989)
      The exchange between bromide and chloride counterions at the surfaces of dioctadecyldimethylammonium vesicles has been examined through fluorescence quenching experiments. The quenching of the fluorescence of vesicle-incorporated ...
    • Bromination of sugar enones and enonolactones 
      Di Nardo, Christían; Varela, Oscar; de Lederkremer, Rosa M.; Baggio, Ricardo; Vega, Daniel R.; Garland, María Teresa (1995)
      Bromination of 2,4,6-tri-O-benzoyl-3-deoxy-d-erytro-hex-2-enono-1,5-lactone (1) took place diastereoselectively to afford a single product: 2,4,6-tri-O-benzoyl-2,3-dibromo-3-deoxy-d-altrono-1,5-lactone (2). The configuration ...
    • Buccal and sublingual vaccines: a review on oral mucosal immunization and delivery systems 
      Trincado, Valeria; Gala, Rikhav P.; Morales Montecinos, Javier Octavio (MDPI, 2021)
      Currently, most vaccines available on the market are for parental use; however, this may not be the best option on several occasions. Mucosal routes of administration such as intranasal, sublingual, and buccal generate ...
    • Buccal Delivery of Nanoparticles 
      Ortiz A.C., Morales J.O. (Springer, 2020)
    • Buccal delivery of small molecules and biologics: of mucoadhesive polymers, films, and nanoparticles 
      Morales Montecinos, Javier; Brayden, David J. (Elsevier, 2017)
      Buccal delivery of macromolecules (biologics) sets a great challenge for researchers. Although several niche small molecule products have been approved as simple sprays, tablets and oral films, it is not simply a case of ...
    • Buccal Dosage Forms: General Considerations for Pediatric Patients 
      Montero-Padilla, Soledad; Velaga, Sitaram; Morales, Javier O. (Springer New York LLC, 2017)
      © 2016, American Association of Pharmaceutical Scientists. The development of an appropriate dosage form for pediatric patients needs to take into account several aspects, since adult drug biodistribution differs from that ...
    • La búsqueda de la verdad y de la excelencia académica: reflexiones sobre el proceso de evaluación académica ... 
      Sapag Hagar, Mario (Universidad de Chile, 1997)
      Cuando Platón regresó a Atenas en el año 387 a.C., se estableció una escuela de filosofía en un jardín, a poco más de 1 Km. de distancia de la ciudad, con olivos, estatuas y templos, denominado Academos, en honor a su ...
    • Ca2+, autophagy and protein degradation: Thrown off balance in neurodegenerative disease 
      Vicencio, José Miguel; Lavandero González, Sergio; Szabadkai, Gyorgy (ELSEVIER, 2010)
      Substantial progress has been made throughout the last decades in the elucidation of the key players and mechanisms responsible for Ca2+ signal generation in both excitable and non-excitable cells. Importantly, these ...
    • Cadmium and lead in a trophic marine chain 
      González, F.; Silva, M.; Schalscha B., Eduardo; Alay, F. (SPRINGER VERLAG, 1998-01)
      Heavy metals participate in complex biogeochemical cycles whose final destination (except on a geological scale)is the bottom of oceans and lakes. This implies that to reach the bottom the metals of the sediment have to ...