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Synthesis of Poly (Ether Ether) Ketone Sulfonated Membrane with Tin Dioxide Particles

Journal of Materials Science and Chemical Engineering 2016年第2期4卷 49-60页

作者： liz contino vianna de aguiar Florêncio Gomes de Ramos Filho Carla Akimi Kawaguti Ailton de Souza Gomes Universidade Federal do Rio de Janeiro Instituto de Macromol&eacute culas Professora Eloisa Mano Rio de Janeiro Brazil Centro Universitá rio Estadual da Zona Oeste-UEZO Rio de Janeiro Brazil

The development of clean energy sources is a subject in focus and boosts fuel cells for research. In this context, studies on proton conductive membranes have an important role. In the present work two groups of membranes were synthetized: one contained SPEEK/SnO2 (varying the content of tin oxide from 2%, 4% and 6%) and the other with SPEEK/SnO2/HPW. The change in the membrane structure was characterized by X-ray diffraction, the swelling in water and ethanol solution uptake test, thermal stability using TGA, change in Tg in DSC, the selective permeability by pervaporation test in water and the solution ethanol and proton conductivity by impedance spectroscopy. Through these analyses, it is possible to verify some effects: the tin oxide particles reduced the Tg membranes, they also controlled the membranes swelling in water and kept it approximately 30% lower than the pure SPEEK swelling and finally, among the tin oxide quantities tested in the membranes, it was reached 67.8 mS/cm as maximum value of proton conductivity.

关键词： Membrane SPEEK Tin Oxide HPW Proton Conductivity

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HCV-specific immune responses induced by CIGB-230 in combination with IFN-α plus ribavirin

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World Journal of Gastroenterology 2014年第1期20卷 148-162页

作者： Yalena Amador-Caizares Gillian Martínez-Donato liz lvarez-Lajonchere Claudia Vasallo Mariacarla Dausá Daylen Aguilar-Noriega Carmen Valenzuela Ivette Raíces Jean Dubuisson Czeslaw Wychowski Zurina Cinza-Estévez Marlén Castellanos Magdalys Núez Anny Armas Yaimé González Ismariley Revé Ivis Guerra ngel Pérez aguiar Santiago Dueas-Carrera Centro de Ingeniería Genética y Biotecnología Playa 10600HavanaCuba Center for Infection and Immunity of Lille (CIIL) Inserm U1019CNRS UMR8204Institut Pasteur de LilleUniv Lille Nord de FranceF-59000 LilleFrance Instituto de Gastroenterología Vedado 10400HavanaCuba Hospital Clínico Quirúrgico "Hermanos Amejeiras" Havana 10200Cuba Centro de Inmunoensayos Havana 11300Cuba

AIM: To analyze hepatitis C virus (HCV)-specific immune responses in chronically infected patients under triple therapy with interferon-α (IFN-α) plus ribavirin and CIGB-230.

关键词： Clinical trial DNA vaccine Enzyme-linked immunospot Hepatitis C virus Leukopenia

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