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Ara mostrant els elements 1-18 d 18

    • openAccess   Ag Nanoparticles/AgX (X=Cl, Br and I) Composites with Enhanced Photocatalytic Activity and Low Toxicological Effects 

      Assis, Marcelo de; Groppo Filho, Francisco C.; Pimentel, Dayene S.; Gouveia, Amanda; Tassia F. D., Castro; Fukushima, Hirla C. S.; Foggi, Camila Cristina; da Costa, João P. C.; Borra, Ricardo Carneiro; Andres, Juan; Longo, Elson Wiley (2020-04-23)
      Periodic structures induced by electron irradiation are a unique phenomenon when electron beams irradiate on the surface of some materials. These periodic structures have potential for technological applications. However, ...

    • openAccess   Ag Nanoparticles/α-Ag2WO4 Composite Formed by Electron Beam and Femtosecond Irradiation as Potent Antifungal and Antitumor Agents 

      Assis, Marcelo de; Robeldo, Thaiane; Foggi, Camila Cristina; Kubo, A.M.; Mínguez-Vega, Gladys; Cordoncillo, Eloisa; Beltrán Mir, Héctor; Torres-Mendieta, Rafael; Andres, Juan; Oliva, Mónica; Vergani, Carlos; Barbugli, P.A.; Camargo, E.R.; Borra, Ricardo Carneiro; Longo, Elson Nature Research (2019)
      The ability to manipulate the structure and function of promising systems via external stimuli is emerging with the development of reconfigurable and programmable multifunctional materials. Increasing antifungal and antitumor ...

    • openAccess   Electron beam irradiation for the formation of thick Ag film on Ag3PO4 

      Costa, João Paulo; Assis, Marcelo de; Teodoro , Vinícius; Rodrigues, André; Foggi, Camila Cristina; San-Miguel, Miguel A.; Carmo, João; Andres, Juan; Longo, Elson Royal Society of Chemistry (2020)
      This study demonstrates that the electron beam irradiation of materials, typically used in characterizationmeasurements, could be employed for advanced fabrication, modification, and functionalization ofcomposites. We ...

    • openAccess   From Complex Inorganic Oxides to Ag–Bi Nanoalloy: Synthesis by Femtosecond Laser Irradiation 

      Machado, Thales Rafael; Guerra Macedo, Nadia; Assis, Marcelo de; Doñate-Buendía, Carlos; Mínguez-Vega, Gladys; Teixeira, Mayara Mondego; Foggi, Camila Cristina; Vergani, Carlos; Beltrán Mir, Héctor; Andres, Juan; Cordoncillo, Eloisa; Longo, Elson American Chemical Society (2018-08-24)
      Bimetallic nanoalloys with a wide variety of structures and compositions have been fabricated through many diverse techniques. Generally, various steps and chemicals are involved in their fabrication. In this study, the ...

    • openAccess   Increasing the photocatalytic and fungicide activities of Ag3PO4 microcrystals under visible-light irradiation 

      Portela Oliveira, Lucas; Foggi, Camila Cristina; Alves da Silva Pimentel, Bruna Natalia; Assis, Marcelo de; Andres, Juan; Longo, Elson; Vergani, Carlos Elsevier (2021-05-03)
      The present study reports for the first time the performance of silver phosphate (Ag3PO4) microcrystals as photocatalyst (degradation of Rodamine B-RhB) and antifungal agent (against Candida albicans–C. albicans) under ...

    • closedAccess   Mechanism of Antibacterial Activity via Morphology Change of α-AgVO3: Theoretical and Experimental Insights 

      Oliveira, Regiane; Foggi, Camila Cristina; Teixeira, Mayara Mondego; Penha da Silva, Maya Dayana; Assis, Marcelo de; Francisco, Eric Mark; Alves da Silva Pimentel, Bruna Natalia; Pereira, Paula; Vergani, Carlos; Machado Maciel, Ana Lúcia; Andres, Juan; Gracia, Lourdes; Longo, Elson American Chemical Society (2017)
      The electronic configuration, morphology, optical features, and antibacterial activity of metastable α-AgVO3 crystals have been discussed by a conciliation and association of the results acquired by experimental procedures ...

    • closedAccess   Potentiated Electron Transference in a-Ag2WO4 Microcrystals with Ag Nanofilaments as Microbial Agent 

      Longo, V. M.; Foggi, Camila Cristina; Ferrer, Mateus M.; Gouveia, Amanda; André, Rafaela S.; Avansi, Waldir; Vergani, Carlos; Machado Maciel, Ana Lúcia; Andres, Juan; Cavalcante, Laécio Santos; Hernandes, Antônio C.; Longo, Elson American Chemical Society (2014-02)
      This study is a framework proposal for understanding the antimicrobacterial effect of both α-Ag2WO4 microcrystals (AWO) synthesized using a microwave hydrothermal (MH) method and α-Ag2WO4 microcrystals with Ag metallic ...

    • openAccess   Rational Design of W-Doped Ag3PO4 as an Efficient Antibacterial Agent and Photocatalyst for Organic Pollutant Degradation 

      Barrios Trench, Aline; Machado, Thales Rafael; Gouveia, Amanda; Foggi, Camila Cristina; Teodoro , Vinícius; Sanchez Montes, Isaac; Teixeira, Mayara Mondego; da Trindade, Letícia; jacomaci, natalia; Perrin, Andre; perrin, christiane; Aquino, Jose M.; Andres, Juan; Longo, Elson ACS Publications (2020-09-11)
      Bacterial and organic pollutants are major problems with potential adverse impacts on human health and the environment. A promising strategy to alleviate these impacts consists in designing innovative photocatalysts with ...

    • openAccess   Selective Synthesis of α-, β-, and γ-Ag2WO4 Polymorphs: Promising Platforms for Photocatalytic and Antibacterial Materials 

      Alvarez Roca, Roman; Gouveia, Amanda; Foggi, Camila Cristina; Santana Lemos, Pablo; Gracia, Lourdes; da Silva, Luís; Vergani, Carlos; San-Miguel, Miguel A.; Longo, Elson; Andres, Juan American Chemical Society (2021-01-18)
      Silver tungstate (Ag2WO4) shows structural polymorphism with different crystalline phases, namely, orthorhombic, hexagonal, and cubic structures that are commonly known as α, β, and γ, respectively. In this work, these ...

    • closedAccess   Surface-dependent photocatalytic and biological activities of Ag2CrO4: Integration of experiment and simulation 

      Assis, Marcelo de; Foggi, Camila Cristina; Teodoro , Vinícius; De Campos da Costa, Joao Paulo; Silva, Carlos Eduardo; Robeldo, Thaiane; Caperucci, Priscila Fernanda; Vergani, Carlos; Borra, Ricardo Carneiro; Sorribes, Iván; Gouveia, Amanda; San-Miguel, Miguel A.; Andres, Juan; Longo, Elson Elsevier (2021-04-15)
      In this work, we present a joint experimental and theoretical study towards unveiling the photocatalytic (photodegradation of Rhodamine B), the antifungal (towards Candida glabrata) and cytotoxicity (against the L929 cell ...

    • closedAccess   Synthesis and evaluation of α-Ag2WO4 as novel antifungal agent 

      Foggi, Camila Cristina; Fabbro, Maria T.; Santos, Luís P. S.; De Santana, Yuri V. B.; Vergani, Carlos; Machado Maciel, Ana Lúcia; Cordoncillo, Eloisa; Andres, Juan; Longo, Elson Elsevier (2017-04-16)
      Abstract Because of the need for new antifungal materials with greater potency, microcrystals of α-Ag2WO4, a complex metal oxide, have been synthetized by a simple co-precipitation method, and their antifungal activity ...

    • closedAccess   Synthesis, antifungal evaluation and optical properties of silver molybdate microcrystals in different solvents: a combined experimental and theoretical study 

      Fabbro, Maria T.; Foggi, Camila Cristina; Santos, Luís P. S.; Gracia, Lourdes; Perrin, André; Perrin, Christiane; Vergani, Carlos; Machado Maciel, Ana Lúcia; Andres, Juan; Cordoncillo, Eloisa; Longo, Elson Royal Society of Chemistry (2016)
      In this study, we investigate the structure, antifungal activity, and optical properties of β-Ag2MoO4 using experimental and theoretical approaches. β-Ag2MoO4 samples were prepared by a co-precipitation method using ...

    • closedAccess   Tailoring the Bactericidal Activity of Ag Nanoparticles/α-Ag2WO4 Composite Induced by Electron Beam and Femtosecond Laser Irradiation: Integration of Experiment and Computational Modeling 

      Guerra Macedo, Nadia; Machado, Thales Rafael; Alvarez Roca, Roman; Assis, Marcelo de; Foggi, Camila Cristina; Puerto-Belda, Verónica; Mínguez-Vega, Gladys; Rodrigues, André; San-Miguel, Miguel A.; Cordoncillo, Eloisa; Beltrán Mir, Héctor; Andres, Juan; Longo, Elson American Chemical Society (2019)
      In nanotechnology research, significant effort is devoted to fabricating patterns of metallic nanoparticles on the surfaces of different semiconductors to find innovative materials with favorable characteristics, such as ...

    • openAccess   Towards the scale-up of the formation of nanoparticles on α -Ag 2 WO 4 with bactericidal properties by femtosecond laser irradiation 

      Assis, Marcelo de; Cordoncillo, Eloisa; Torres-Mendieta, Rafael; Beltrán Mir, Héctor; Mínguez-Vega, Gladys; Oliveira, Regiane; Leite, Edson R.; Foggi, Camila Cristina; Vergani, Carlos; Longo, Elson; Andres, Juan Nature Publishing Group (2018)
      In recent years, complex nanocomposites formed by Ag nanoparticles coupled to an α-Ag2WO4 semiconductor network have emerged as promising bactericides, where the semiconductor attracts bacterial agents and Ag nanoparticles ...

    • closedAccess   Tuning the Morphological, Optical, and Antimicrobial Properties of α-Ag2WO4 Microcrystals Using Different Solvents 

      Foggi, Camila Cristina; Oliveira, Regiane; Fabbro, Maria T.; Vergani, Carlos; Andres, Juan; Longo, Elson; Machado Maciel, Ana Lúcia (2017)
      New, effective antimicrobial agents are constantly being evaluated for addressing the increased prevalence of bacterial and fungal infections and emerging drug resistance. In this study, α- Ag2WO4 microcrystals were prepared ...

    • openAccess   Unvealing the role of β-Ag2MoO4 microcrystals to the improvement of antibacterial activity 

      Foggi, Camila Cristina; De Oliveira, Regiane Cristina; Assis, Marcelo de; Maria Tereza, Fabbro; Mastelaro, Valmor Roberto; Vergani, Carlos; Gracia, Lourdes; Andres, Juan; Longo, Elson; Machado Maciel, Ana Lúcia Elsevier (2020)
      Crystal morphology with different surfaces is important for improving the antibacterial activity of materials. In this experimental and theoretical study, the antibacterial activity of β-Ag2MoO4 microcrystals against the ...

    • openAccess   Zinc-substituted Ag2CrO4: A material with enhanced photocatalytic and biological activity 

      Pinatti, Ivo M; Mora Tello, Ana Cristina; Barrios Trench, Aline; Foggi, Camila Cristina; Pereira, Paula; Teixeira, Mayara Mondego; jacomaci, natalia; Andres, Juan; Longo, Elson Elsevier (2020-05-01)
      In the past years, new environmentally-friendly photocatalysts have been reported, but the realization of efficient visible-light driven photocatalyst with highly active bactericidal and fungicidal activity is still ...

    • closedAccess   α‑AgVO3 Decorated by Hydroxyapatite (Ca10(PO4)6(OH)2): Tuning Its Photoluminescence Emissions and Bactericidal Activity 

      da Silva, Jussara Soares; Machado, Thales Rafael; Martins, Tiago A.; Assis, Marcelo de; Foggi, Camila Cristina; Guerra Macedo, Nadia; Beltrán Mir, Héctor; Cordoncillo, Eloisa; Andres, Juan; Longo, Elson American Chemical Society (2019-04)
      Defect-related luminescent materials have attracted interest because of their excellent optical properties and are considered as a less expensive and nontoxic alternative to commonly used lanthanide-based optical systems. ...