Navegação Ciências Exatas e da Terra por Assunto "Nanopartículas de ouro"

Resultados 1-7 de 7

    • Electron irradiation effects on the nucleation and growth of Au nanoparticles in silicon nitride membranes 

      Timm, Mariana de Mello; Fabrim, Zacarias Eduardo; Marin, Cristiane; Baptista, Daniel Lorscheitter; Fichtner, Paulo Fernando Papaleo (2017) [Artigo de periódico]
      The formation of Au nanoparticles (NPs) in Auþ ion-implanted silicon nitride thin films and membranes was investigated as a function of post-implantation thermal treatments or room temperature electron irradiation at ...

    • Eucalyptus oil-mediated synthesis of gold nanoparticles 

      Thesing, Anderson; Nascimento, José Edmilson Ribeiro do; Jacob, Raquel Guimarães; Ferreira, Jacqueline (2018) [Artigo de periódico]
      The search for efficient methods for the synthesis of metal nanoparticles has been widely explored. Within this context, the use of biological materials such as plants, algae, bacteria and fungi has been reported to various ...

    • Gold nanoparticles inhibit steroid-insensitive asthma in mice preserving histone deacetylase 2 and NRF2 pathways 

      Serra, Magda Fraguas; Santana, Amanda da Costa Cotias; Pimentel, Andreza da Silva; Arantes, Ana Carolina Santos de; Pires, Ana Lucia de Aguiar; Deus, Manuella Lanzetti Daher de; Hickmann, Jandir Miguel; Barreto, Emiliano de Oliveira; Carvalho, Vinicius de Frias; Martins, Patricia Machado Rodrigues e Silva; Cordeiro, Renato Sergio Balao; Martins, Marco Aurélio (2022) [Artigo de periódico]
      Background: Gold nanoparticles (AuNPs) can inhibit pivotal pathological changes in experimental asthma, but their effect on steroid-insensitive asthma is unclear. The current study assessed the effectiveness of nebulized ...

    • Growth of TiO2 nanotube arrays with simultaneous Au nanoparticles impregnation: photocatalysts for hydrogen production 

      Feil, Adriano Friedrich; Migowski, Pedro; Scheffer, Francine Ramos; Pierozan, Matheus Daniel; Corsetti, Rodrigo Ruzicki; Rodrigues, Melissa Machado; Pezzi, Rafael Peretti; Machado, Giovanna; Amaral, Livio; Teixeira, Sergio Ribeiro; Weibel, Daniel Eduardo; Dupont, Jairton (2010) [Artigo de periódico]
      Um novo método para a fabricação de nanotubos (NTs) de TiO2 organizados e impregnados com nanopartículas (NPs) de ouro foi desenvolvido, e as propriedades estruturais, morfológicas e ópticas dos NTs obtidos foram investigadas. ...

    • Interface dependent plasmon induced enhancement in dye-sensitized solar cells using gold nanoparticles 

      Oliveira, Matheus Costa de; Fraga, André Luis Silveira; Thesing, Anderson; Andrade, Rocelito Lopes de; Ferreira, Jacqueline; Santos, Marcos José Leite (2015) [Artigo de periódico]
      We report a study on plasmon-induced photoelectrochemistry from gold nanoparticles incorporated in dye-sensitized solar cells, assembled in two different configurations: TiO2/Aunanop/Dye and TiO2/Dye/Aunanop. Although the ...

    • Magnesium surface enrichment of CoFe2O4 magnetic nanoparticles immobilized with gold : reusable catalysts for green oxidation of benzyl alcohol 

      Abreu, Wiury Chaves de; Garcia, Marco Aurélio Suller; Nicolodi, Sabrina; Moura, Carla Verônica Rodarte de; Moura, Edmilson Miranda de (2018) [Artigo de periódico]
      Gold nanoparticles have shown excellent activity for selective oxidation of alcohols; such catalytic systems are highly dependent on the initial activation of the substrates, which must occur on the catalyst surface in ...

    • SPR biosensors based on gold and silver nanoparticle multilayer films 

      Silva, Antônio Luiz Corrêa Mirapalhete da; Gutierres, Marony Garcia; Thesing, Anderson; Lattuada, Rafael Mello; Ferreira, Jacqueline (2014) [Artigo de periódico]
      Filmes em multicamadas de nanopartículas de ouro e prata foram utilizados para o desenvolvimento de um sensor plasmônico para detecção de ligações entre moléculas orgânicas e/ou com atividade biológicas. A sensibilidade a ...