• Reactivity of a Silsesquioxane Organofunctionalized with 4-Amino-5-Phenyl-4H-[1,2,4]-Triazole-3-thiol: Complementary Characterization and an Application to Chronoamperometric Detection of L-Dopamine 

  Fernandes, Daniela Silvestrini ; Maraldi, Vitor Alexandre ; Filho, Newton Luiz Dias ; Do Carmo, Devaney R. (Silicon, 2018) [Artigo]

  This work describes the organofunctionalization and a complementary characterization and application of an octakis(3-chloropropyl)octasilsesquioxane (1) with 4-Amino-5-Phenyl-4H-[1,2,4]-Triazole-3-Thiol (2). The functionalized ...

• Conducting behavior of crystalline a-PbO2 as revealed by DFT calculations 

  Cordeiro, João Manuel Marques ; de Azevedo, Douglas Henrique Marcelino ; Barretto, Tatiana Conceição Machado ; Sambrano, Julio Ricardo (Materials Research, 2018) [Artigo]

  PbO2 is one material that has recently emerged as potential transparent conducting oxide for applications in the modern opto-electronic industry. In this work the electronic structure of the a-PbO2 polymorph has been ...

• Characterization of PZT/PVDF Composite Film as Functional Material 

  De Freitas, Ricardo Luiz Barros; Sakamoto, Walter Katsumi ; Freitas, Luciana Paro Scarin; Castro, Fabian ; Lima Filho, Antonio P. ; Kitano, Claudio ; De Carvalho, Aparecido Augusto (IEEE Sensors Journal, 2018) [Artigo]

  In this paper, we obtained and characterized a composite film made of lead zirconate titanate (PZT) piezoelectric ceramic and nonpolar polyvinylidene fluoride ( \alpha -PVDF) as a functional material. The scanning electron ...

• Trace element analysis of fusel oil by microwave-induced plasma optical emission spectrometry 

  Gonçalves, Daniel Araujo; McSweeney, Tina; dos Santos, Mirian Cristina ; Martines, Marco A. Utrera; Malmonge, Luiz Francisco ; Donati, George L. (Current Analytical Chemistry, 2017) [Artigo]

  Background: Fusel oil is a mixture of higher alcohols produced as a minor fraction of the fermentation-distillation process in sugar and ethanol industries. It can be used as a fixating agent in cosmetics products, as ...

• Effect of la doping on the crystal structure, electric, magnetic and morphologic properties of the BSCCO system 

  Rodrigues, Vivian Delmute ; De Souza, Gisele Aparecida ; Carvalho, Claudio Luiz ; Zadorosny, Rafael (Materials Research, 2017) [Artigo]

  Studies of the doping process can provide a better understanding of the superconducting mechanisms in cuprous oxide materials. In this work, we studied the doping effects on the crystal structure, electric, morphologic and ...

• Thermal and morphological characterization of highly porous nanocomposites for possible application in potassium controlled release 

  Junior, Carlos Roberto Ferreira ; Tanaka, Fabrício Nunes ; Bortolin, Adriel; de Moura, Márcia Regina ; Aouada, Fauze Ahmad (Journal of Thermal Analysis and Calorimetry, 2018) [Artigo]

  The use of fertilizer and water availability are essential factors limiting the agricultural production. The controlled release technology is very promising because it allows the maintenance of fertilizer concentrations ...

• Epoxidation of olefins using a novel synthesized tungsten dendritic catalyst 

  Vieira, Eduardo G. ; Dias Filho, Newton L. (Materials Chemistry and Physics, 2017) [Artigo]

  In this work, we carry out the preparation and characterization of new dendritic catalyst from an oligomer polyhedral silsesquioxane core (POSS-DG2.0). This material was used in the immobilization of the [W(CO)3Br2(NCMe)2] ...

• High Nd3+→Yb3+ energy transfer efficiency in tungsten-tellurite glass: A promising converter for solar cells 

  Costa, Francine Bettio ; Yukimitu, Keizo ; Nunes, Luiz Antonio de Oliveira; Figueiredo, Marcio da Silva; Silva, Junior Reis; Andrade, Luis Humberto da Cunha; Lima, Sandro Marcio; Moraes, João Carlos Silos (Journal of the American Ceramic Society, 2017) [Artigo]

  This work reports on the energy transfer efficiency for Nd3+/Yb3+ co-doped tellurite glasses (80TO2-20WO3, in mol%,). The correlation between Yb3+ ion concentration and the downconversion mechanism was investigated using ...

• Synthesis of two new Mo(II) organometallic catalysts immobilized on POSS for application in olefin oxidation reactions 

  Vieira, Eduardo Guimar�es ; Dal-B�, Alexandre Gon�alves; Frizon, Tiago Elias Allievi; Dias Filho, Newton Luiz (Journal of Organometallic Chemistry, 2017) [Artigo]

  The purpose of this work was the preparation and characterization of two new catalysts POSS-ATZAc-[Mo(η3-C3H5)Br(CO)2] (POSS-Mo-I) and POSS-ATZAc-[Mo(CO)3Br2] (POSS-Mo-II). The new heterogeneous catalysts were characterized ...

• Syntheses and catalytic activities of new metallodendritic catalysts 

  Vieira, Eduardo Guimarães ; Silva, Rafael Oliveira ; Dal-Bó, Alexandre Gonçalves; Frizon, Tiago Elias Allievi; Filho, Newton Luiz Dias (New Journal of Chemistry, 2016) [Artigo]

  This investigation presents the syntheses of new metallodendritic catalysts from a silsesquioxane core (Silsesq-PrNH3 +Cl-) via a new route. For optimization of the syntheses of the catalysts, reaction times, thermodynamic ...

• Evaluation of setting time, ions release, sealing ability and adhesion of a novel experimental endodontic cement 

  dos Santos, Alailson Domingos; Sostena, Michela Melissa Duarte Seixas ; Barbosa, José Carlos ; dos Santos, Paulo Henrique ; Gandolfi, Maria Giovanna; Prati, Carlo; Silos Moraes, João Carlos (Materials Science Forum, 2016) [Trabalho apresentado em evento]

  The aim of this work was to evaluate the setting time, adhesion, sealing ability, and ion release of a novel endodontic sealer (CEOE) and of the commercial Sealer 26® cement. The setting time was determined in accordance ...

• Development and characterization of an ITO nanocomposite film sensor for damage detection 

  Takiuti, Breno Ebinuma ; Júnior, Vicente Lopes ; Brennan, Michael J. ; Sakamoto, Walter Katsumi ; Malmonge, José Antônio ; Orlandi, Marcelo Ornaghi (Conference Proceedings of the Society for Experimental Mechanics Series, 2016) [Trabalho apresentado em evento]

  In order to secure the structural integrity of aeronautic structures, several structural health monitoring techniques have been studied throughout history. One of the most recent technologies developed involves the use of ...

• Characterization of Nd3+-doped tellurite glasses with low OH content 

  Costa, Francine Bettio ; Yukimitu, Keizo ; Nunes, Luiz Antonio Oliveira; Da Cunha Andrade, Luis Humberto; Lima, Sandro Marcio; Moraesa, João Carlos Silos (Materials Research, 2015) [Trabalho apresentado em evento]

  This work presents the results of the investigation of structural and thermal properties of Nd3+-doped tellurite glasses with low OH content. The samples were characterized by XRD, FTIR, DTA, UV/VIS/NIR and Archimedes' ...

• Characterization of ash sludge from wastewater treatment plants: Assessment for construction purposes 

  Da Silveira Thiago Rosa, Cristiane Maria ; Melges, José Luiz Pinheiro ; Payá, Jordi ; Akasaki, Jorge Luís; Marinho, Jean Richard Dasnoy ; Oliveira, Douglas Santos (Key Engineering Materials, 2014) [Trabalho apresentado em evento]

  Considering that the human being is in a universe where the population demand for consumer goods is rapidly growing, the United Nations (UN) concluded that the effective implementation of the use of renewable resources has ...

• Analysis of the electrical conduction in percolative nanocomposites based on castor-oil polyurethane with carbon black and activated carbon nanopowder 

  Rebeque, Paulo Vinícius; Silva, Michael Jones; Cena, Cicero Rafael; Nagashima, Haroldo Naoyuki; Malmonge, José Antônio; Kanda, Darcy Hiroe Fujii (Polymer Composites, 2017) [Artigo]

  Flexible nanocomposite films derived from castor-oil polyurethane (PUR) and conductive fillers of activated carbon nanopowder (CNP) and carbon black (CB) nanoparticles were prepared by casting and characterized by scanning ...

• Nanocomposites of polyethylene/polyaniline/graphite with special morphology 

  Lentz, Ariane M.; Gheno, Grasiela; Maraschin, Thuany; Malmonge, José A.; de Souza Basso, Nara R.; Balzaretti, Naira M.; Milani, Marcéo A.; Galland, Griselda B. (Polymer Composites, 2017) [Artigo]

  Nanofillers of polyaniline nanofibers (PANI) with graphite oxide (GO) or reduced graphite oxide (rGO) were synthesized and characterized. Four samples of PANI/graphite with 10% and 30% of GO or rGO were obtained. The ...

• Thermal, microstructural, and spectroscopic analysis of Ca2+ alginate/clay nanocomposite hydrogel beads 

  da Silva Fernandes, Renan ; de Moura, Márcia Regina ; Glenn, Greg M.; Aouada, Fauze Ahmad (Journal of Molecular Liquids, 2018) [Artigo]

  Polymeric hydrogels are important biomaterials with potential for various applications including the controlled release of drugs. Clay and zeolite nanostructures can enhance the absorption and release properties of hydrogels. ...

• Voltammetric Properties of Nickel Hexacyanoferrate (III) Obtained on the Titanium (IV) Silsesquioxane Occluded into the H-FAU Zeolite for Detection of Sulfite 

  Do Carmo, Devaney Ribeiro ; Maraldi, Vitor Alexandre ; Cumba, Loanda Raquel (Silicon, 2018) [Artigo]

  A composite prepared from titanium (IV) silsesquioxane and phosphoric acid (TTiP) was prepared and occluded into the H-FAU zeolite (ZTTiP). The material was chemically modified with nickel and subsequently by potassium ...

• Synthesis and antibacterial activity of new lactone 1,4-dihydroquinoline derivatives 

  Laurentiz, Rosangela S. ; Gomes, Willian P. ; Pissurno, Ana P. R. ; Santos, Fernanda A. ; Santos, Vinicius Cristian O.; Martins, Carlos H. G. (Medicinal Chemistry Research, 2018) [Artigo]

  In this work, a series of lactone 1,4-dihydroquinoline derivatives 4 were efficiently synthesized and characterized by 1H and 13C NMR. The synthesized compounds were evaluated for their in vitro antibacterial activity ...

• Influence of the deGennes extrapolation parameter on the resistive state of a superconducting strip 

  Barba-Ortega, J.; Sardella, Edson ; Zadorosny, R. (Physics Letters, Section A: General, Atomic and Solid State Physics, 2018) [Artigo]

  We studied the resistive state of a mesoscopic superconducting strip (bridge) at zero external applied magnetic field under a transport electric current, Ja, subjected to different types of boundary conditions. The current ...

View more