Now showing items 2428-2447 of 2801

    • Aliaga, Margarita; Carrasco Pozo, Catalina; López Alarcón, Camilo; Olea Azar, Claudio; Speisky Cosoy, Hernán (2011)
      The intracellularly-occurring Cu(I)-glutathione complex (Cu(I)-[GSH](2)) has the ability to reduce molecular oxygen into superoxide radicals (O-2(center dot-)). Based on such ability, we addressed the potential of this ...
    • Cerezal Mezquita, Pedro; Carrasco Verdejo, Andrea; Pinto Tapia, Karina; Romero, Nalda; Arcos Zabala, Rafael (Asociación Interciencia, 2007-12)
      Las combinaciones de cereales-leguminosas ofrecen proteínas de alta calidad debido a la compensación de sus aminoácidos esenciales. Se seleccionó la quinua (Chenopodium quinua Willd) y el lupino (Lupinus albus L.) con ...
    • Marin, Oscar; Alastuey, Patricio; Tosi, Ezequiel; Orive, Joseba; Mosquera, Edgar; Zampieri, Guillermo; Suárez, Sergio; Comedi, David; Tirado, Mónica (Elsevier B.V., 2018)
      © 2018Zn1-xNixO thin films (nominal x=0, 0.01, 0.02, 0.04, 0.1 and 0.2) were synthesized on silicon substrates through a sol-gel/dip-coating technique. Samples were studied by X-ray diffraction, scanning electron microscopy, ...
    • Jullian Matthaei, Carolina; Fernández Sandoval, Samuel Esteban; Celis Barros, Cristian; Abarca, Belén; Ballestero, Rafael; Zapata Torres, Gerald (Elsevier, 2015)
      tThe chemosensor 3-phenyl-7-(pyrid-2-yl)-[1,2,3]triazolo[1,5-a]pyridine (PhPTP) used in combinationwith two different cyclodextrins, enable its solubilization and stabilization in aqueous solution. Thebehavior of the ...
    • Robinson Duggon, José; Pérez Mora, Francisco; Valverde Vasquez, Liliana; Cortés Arriagada, Diego; Fuente Urrutia, Julio de la; Günther Sapunar, Germán; Fuentealba, Denis (American Chemical Society, 2017)
      A novel strategy to control the generation of singlet oxygen by a photosensitizer using cucurbit[n]urils inclusion complexes is shown herein, and the strategy has great potential for therapeutic applications. We show the ...
    • Díaz Dinamarca, Diego A.; Manzo, Ricardo A.; Soto, Daniel A.; Avendaño Valenzuela, María José; Bastías, Diego N.; Soto, Paulina I.; Escobar, Daniel F.; Vásquez Sáez, Valeria; Carrión, Flavio; Pizarro Ortega, Magdalena S.; Wilson Moya, Christian A. M.; Berríos, Julio; Kalergis, Alexis M.; Vásquez, Abel E. (MDPI, 2020)
      Vaccine-induced protection against pathogens, especially subunit-based vaccines, are related to antigen properties but mainly in their ability to stimulate the immune system by the use of an adjuvant. Modern vaccines are ...
    • Munoz, Raúl C.; Vidal, Guillermo; Mulsow, Marcelo; Lisoni, Judit G.; Arenas, Claudio; Concha, Andres; Mora, Fernando; Espejo, Roberto; Kremer, Germán; Moraga, Luis (2000)
      We report measurements of the resistivity (Formula presented) of a gold film 70 nm thick deposited on mica preheated to 300 °C in UHV, performed between 4 and 300 K, and measurements of the surface topography of the same ...
    • Leyton, P.; Sánchez Cortés, S.; Campos Vallette, Marcelo; Domingo, C.; Garcia-Ramos, J. V.; Saitz, C. (2005)
      Surface-enhanced micro-Raman spectroscopy (micro-SERS) was used to detect traces of the hazardous pollutant polycyclic aromatic hydrocarbons (PAHs) pyrene and benzo[c]phenanthrene deposited onto a calix[4]arene-functionalized ...
    • Garrido, C.; Weiss López, Boris; Campos Vallette, Marcelo (Taylor and Francis Inc., 2016)
      A modification to the traditional synthesis of reduced silver metal nanoparticles with hydroxylamine hydrochloride is proposed. The new colloid, obtained by decreasing the concentration of hydroxide and chloride ions, is ...
    • Letelier Muñoz, María Eugenia; Rodríguez Rojas, Carmen; Sánchez Jofré, Sebastián; Aracena Parks, Paula (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011-03)
      Chenopodium quinoa Willd (quinoa) has been a source of food for millennia by the Andes region native population. Because of its bitter taste, quinoa seeds are commercialized without their coat for human consumption. Quinoa ...
    • Fuentes, Edwar; Báez, María E.; Díaz, Juan (2010)
      Dimethoate, diazinon, parathion methyl, pirimiphos methyl, malathion, fenthion, chlorpyriphos, methidathion and azinphos methyl were determined in 71 olive oil samples produced in Chile from different varieties of olives ...
    • Scherer, Michael A.; Kötter, Karsten; Markus, Mario; Goles, Eric; Rehberg, Ingo (2000)
      Experiments and three-dimensional numerical simulations are presented to elucidate the dynamics of granular material in a cylindrical dish driven by a horizontal, periodic motion. The following phenomena are obtained both ...
    • Aguilar, Héctor; Yazdani-Pedram Zobeiri, Mehrdad; Toro, Patricio; Quijada Abarca, Juan; López Manchado, Miguel (2014)
      Inorganic fillers such as CaCO3 and clays are widely used as fillers to improve the mechanical and physical properties of polypropylene (PP). With the aim of improving simultaneously the stiffness and yield stress of PP, ...
    • Olea,; Gamboa, (2003)
      Surface tension measurements have been made in aqueous solutions of anionic hemiesters of an alternating copolymer of maleic acid and styrene, MAS-n with n=0-12, in the presence of dodecyltrimethylammonium bromide, DTAB. ...
    • Vásquez Salfate, Rodrigo; Vetterlein, Claudia; Trujillo, Alexander; Escobar, Carlos; Araya Fuentes, Eyleen (2014)
      The molecular structure of the exo-3,6-dimethyl-3,6-epoxi-1,2,3,6-tetrahydrophthalimide (1), determined by X-ray diffraction analysis, as well as, its complete spectroscopic characterization and the synthesis and complete ...
    • Victoriano, Luis I.; Garland, María Teresa; Vega, Andrés; Lopez, César (1998)
      The reaction of copper(I) iodide with tetraethylthiuram monosulfide LEt afforded the novel copper(I) pentanuclear neutral complex [CU5LEt2I5]·EtOH·MeCN 1. Its crystal structure may be described as a very distorted octahedral ...
    • Pérez Cruz, Karina Angélica; Moncada-Basualto, Mauricio; Morales Valenzuela, Javier; Barriga González, Germán; Navarrete Encina, Patricio; Núñez Vergara, Luis; Squella Serrano, Juan; Olea Azar, Claudio (Elsevier, 2018-05)
      The antioxidant capacity of hydroxylated coumarins and hydroxybenzoic acids has been widely described. However, there is little information on the antioxidant activity when both systems are functionalized. In this work, ...
    • Méndez-Rojas, Claudio; Quiroz, Gabriel; Faúndez, Mario; Gallardo Garrido, Carlos Andrés; Pessoa Mahana, Carlos David; Chung, Hery; Gallardo Toledo, Eduardo; Saitz Barría, Claudio; Araya Maturana, Ramiro; Kogan Bocian, Marcelo; Zúñiga López, María C.; Iturriaga-Vásquez, Patricio; (Wiley-VCH Verlag, 2018)
      © 2018 Deutsche Pharmazeutische Gesellschaft With the purpose of expanding the structural variety of chemical compounds available as pharmacological tools for the treatment of Alzheimer's disease, we synthesized and evaluated ...
    • Martín-Escolano, Rubén; Aguilera-Venegas, Benjamín; Marín, Clotilde; Martín-Montes, Álvaro; Martín-Escolano, Javier; Medina-Carmona, Encarnación; Arán, Vicente J.; Sánchez-Moreno, Manuel (John Wiley and Sons Ltd, 2018)
      © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Chagas disease, a neglected tropical disease caused by infection with the protozoan parasite Trypanosoma cruzi, is a potentially life-threatening illness that affects 5–8 ...
    • Ojeda Gómez, Claudia; Pessoa Mahana, Hernán; Iturriaga-Vásquez, Patricio; Pessoa Mahana, Carlos David; Recabarren Gajardo, Gonzalo Iván; Méndez Rojas, Claudio (Wiley, 2014)
      A series of functionalized indolylalkylarenes 3–16(a and b) were synthesized and their affinities for the serotonin transporter were investigated in vitro. Compounds 3–12(a and b) were obtained by nucleophilic substitution ...