Browsing by Title Artículos de revistas

Now showing items 304-323 of 2801

    • Biochemistry in Chile 
      Vicuña E., Rafael; Cori, Osvaldo (Elsevier Science, 1981)
    • Biogenic volatile organic compounds from the urban forest of the Metropolitan Region, Chile 
      Préndez Bolívar, María Margarita; Carvajal, Virginia; Corada, Karina; Morales, Johanna; Alarcón, Francis; Peralta, Hugo (Elsevier, 2013)
      Tropospheric ozone is a secondary pollutant whose primary sources are volatile organic compounds and nitrogen oxides. The national standard is exceeded on a third of summer days in some areas of the Chilean Metropolitan ...
    • Biological activities and metabolites from Trevoa trinervis Miers 
      Delporte, Carla L.; Backhouse, C. Nadine; Erazo, Silvia; Negrete, Rosa E.; Silva, Carolina; Hess, Andrés; Muñoz Muñoz, Orlando; García-Grávalos, M. Dolores; San Feliciano, Arturo (1997)
      Chilean folklore medicine uses Trevoa trinervis Miers. (Rhamnaceae), 'trevo', for the treatment of inflammation caused by wounds and burns. The antiinflammatory and antipyretic activities of crude methanol, aqueous and ...
    • Biological and chemical study of fused tri- and tetracyclic indazoles and analogues with important antiparasitic ... 
      Díaz Urrutia, Christian; Olea Azar, Claudio; Zapata, Gerald A.; Lapier, Michel; Mura Mardones, Francisco; Aguilera Venegas, Benjamín; Arán, Vicente J.; López Muñoz, Rodrigo; Maya Arango, Juan (2012)
      A series of fused tri- and tetracyclic indazoles and analogues compounds (NID) with potential antiparasitic effects were studied using voltamperometric and spectroscopic techniques. Nitroanion radicals generated by cyclic ...
    • Biological and chemical study of paico (Chenopodium chilense, Chenopodiaceae) 
      García, R.; Lemus Gutiérrez, Igor; Rivera, P.; Erazo, Silvia (ELSEVIER SCI IRELAND LTD, 1997-07)
      The methanolic extract of the aerial portion of Chenopodium chilense Schrad., used in Chilean traditional medicine as a remedy for stomach-ache, has been found to exert the major spasmolytic activity in acetylcholine ...
    • Biological evaluation of novel 6-arylbenzimidazo [1,2-c]quinazoline derivatives as inhibitors of LPS-induced ... 
      Galarce, Gloria D.; Foncea, Rocío; Edwards, Ana María; Pessoa Mahana, Hernán; Pessoa Mahana, Carlos David; Ebensperger González, Roberto (SOC BIOLGIA CHILE, 2008)
      This study describes the effect of novel 6-Arylbenzimidazo[1,2-c]quinazoline derivatives as tumor necrosis factor alpha (TNF-alpha) production inhibitors. The newly synthesized compounds were tested for their in vitro ...
    • Biological phosphorylated molecules participate in the biomimetic and biological synthesis of cadmium ... 
      Venegas, F. A.; Saona, L. A.; Monras, J. P.; Ordenes Aenishanslins, N.; Giordana, M. F.; Ulloa, G.; Collao, B.; Bravo Rodríguez, Denisse; Pérez Donoso, José (Royal Society of Chemistry, 2017)
      Developing methods with a low environmental impact for nanoparticle synthesis remains one of the greatest challenges in nanotechnology. In this context, biomimetic and biological methods have emerged as green chemistry ...
    • Biological synthesis of fluorescent nanoparticles by cadmium and tellurite resistant Antarctic bacteria: ... 
      Plaza, D. O.; Gallardo, C.; Straub, Y. D.; Bravo, D.; Pérez Donoso, José (Biomed Central, 2016)
      Background: Fluorescent nanoparticles or quantum dots (QDs) have been intensely studied for basic and applied research due to their unique size-dependent properties. There is an increasing interest in developing ecofriendly ...
    • Biomimetic quantum dot-labeled B16F10 murine melanoma cells as a tool to monitor early steps of lung ... 
      Díaz García, Víctor; Guerrero, Simón; Díaz Valdivia, Natalia; Lobos González, Lorena; Kogan Bocian, Marcelo; Pérez Donoso, José; Quest, Andrew F. G. (NLM (Medline), 2018)
      Background: Numerous studies have proposed the use of fluorescent semiconductor nanoparticles or quantum dots (QDs) as novel tools to label cells and tumors. However, QD applications are limited by their toxicity in ...
    • Biomimetic, Mild Chemical Synthesis of CdTe-GSH Quantum Dots with Improved Biocompatibility 
      Pérez Donoso, José; Monrás, Juan P.; Bravo, Denisse; Aguirre, Adam; Quest, Andrew F. G.; Osorio Román, Igor; Aroca, Ricardo F.; Chasteen, Thomas G.; Vásquez, Claudio C. (2012)
      Multiple applications of nanotechnology, especially those involving highly fluorescent nanoparticles (NPs) or quantum dots (QDs) have stimulated the research to develop simple, rapid and environmentally friendly protocols ...
    • Bioquímica de suelos derivados de cenizas volcánicas. V. Determinación de polifenoloxidas 
      Peirano V., Pedro; Borie B., Gilda; Aguilera S., S. María (Chile, Instituto de Investigaciones Agropecuarias, 1987)
      A technique was studied and later implemented to determine the amount of polyphenoloxidase removable from soils. This enzymatic activity favors oxidation processes such as those of phenols. These are the foundations for ...
    • Bioquímica de suelos derivados de cenizas volcánicas. VI. Determinación de hidratos de carbono. 
      Aguilera S., S. María; Borie B., Gilda; Milla N., Pamela; Peirano V., Pedro (Instituto de Investigaciones Agropecuarias, 1987-07)
      A first prospection was made of the content and identity of the carbohydrates in Chilean soils. Seven volcanic and two alluvial soils were selected. Determinations, by the Anthrone method, were done of free carbohydrates ...
    • Bioquímica de suelos derivados de cenizas volcánicas. VII. Determinación de deshidrogenasas. 
      Aguilera S., S. María; Borie B., Gilda; Rokov C., Pamela; Peirano V., Pedro (Instituto de Investigaciones Agropecuarias, 1988-04)
      Dehydrogenase and respiratory activities were studies in six soils, five of volcanic origin and the other alluvial, as a reference. Dehydrogenases activity was measured by the reduction of 2, 3, 5- Tryphenyl Tetrazolium ...
    • 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 ...