Search Results - "Barreto, Ledjane Silva"
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Optimized graphene transfer: Influence of polymethylmethacrylate (PMMA) layer concentration and baking time on graphene final performance
Published in Carbon (New York) (01-04-2015)“…The influence of transfer parameters on the final structure, morphology and electrical properties of graphene were investigated in this work. Optical…”
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2
Use of coir pith particles in composites with Portland cement
Published in Journal of environmental management (15-12-2013)“…Brazil is the fourth largest world's producer of coconut (Cocos nucifera L.). Coconut crops generate several wastes, including, coir pith. Coir pith and short…”
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3
Anti-biofouling properties of graphene-based nanoadditives in cementitious mortars
Published in Journal of Building Engineering (01-09-2023)“…Biofouling is a striking pathological manifestation in the facade elements that can impair the building aesthetics and compromise the integrity and durability…”
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4
Kinetic and calorimetric study of the adsorption of dyes on mesoporous activated carbon prepared from coconut coir dust
Published in Journal of colloid and interface science (15-06-2006)“…Mesoporous activated carbon has been prepared from coconut coir dust as support for adsorption of some model dye molecules from aqueous solutions. The…”
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5
Morphology and thermal properties of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/attapulgite nanocomposites
Published in Materials research (São Carlos, São Paulo, Brazil) (01-09-2011)“…Poly(3-hydroxybutyrate-co-3-hydroxyvalcrate) - PHB V is a biodegradable polyester which has been studied as an option for the production of disposable goods…”
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6
Biomorphic activated porous carbons with complex microstructures from lignocellulosic residues
Published in Microporous and mesoporous materials (01-01-2008)“…Transformation of coir fibers, coir pith and coconut shell endocarp microstructures is described for the formation of activated carbons. The…”
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7
Modification of the La0.6Sr0.4CoO3 coating deposited on ferritic stainless steel by spray pyrolysis after oxidation in air at high temperature
Published in International journal of hydrogen energy (15-04-2013)“…The behaviour of La0.6Sr0.4CoO3 applied to ferritic stainless steel (AISI 430) by spray pyrolysis was investigated after oxidation at 800 °C in air. The film…”
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8
Sulfadiazine/hydroxypropyl-β-cyclodextrin host–guest system: Characterization, phase-solubility and molecular modeling
Published in Bioorganic & medicinal chemistry (15-05-2008)“…A 1:1 inclusion complex of sulfadiazine with hydroxypropyl β-cyclodextrin was prepared, characterized and modeled by RM1 and PM6 semiempirical methods…”
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9
Conductive carbon–clay nanocomposites from petroleum oily sludge
Published in Journal of hazardous materials (15-08-2009)“…Oily sludge samples formed in water–oil separation tanks from a petroleum industry were collected, characterized and heat-treated at different temperatures, in…”
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Inclusion complexes of pyrimethamine in 2-hydroxypropyl-β-cyclodextrin: Characterization, phase solubility and molecular modelling
Published in Bioorganic & medicinal chemistry (01-09-2007)“…A 1:1 inclusion complex of pyrimethamine with hydroxypropyl β-cyclodextrin was prepared, characterized and modelled by AM1 method. Phase solubility and…”
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Influence of granitic aggregates from northeast Brazil on the alkali-aggregate reaction
Published in Materials research (São Carlos, São Paulo, Brazil) (01-08-2014)“…The alkali-aggregate reaction (AAR) in concrete structures is a problem that has concerned engineers and researchers for decades. This reaction occurs when…”
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Interaction of pyrimethamine and sulfadiazine with ionic and neutral micelles: Electronic absorption and fluorescence studies
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (01-07-2008)“…The binding of two antitoxoplasmosis drugs, pyrimethamine (PYR) and sulfadiazine (SDZ) to cationic cetyltrimethylammonium chloride (CTAC), anionic sodium…”
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13
LaCrO3 composite coatings for AISI 444 stainless steel solid oxide fuel cell interconnects
Published in Materials research (São Carlos, São Paulo, Brazil) (2012)“…Doped lanthanum chromite-based ceramics are the most widely used interconnect material in solid fuel cells (SOFC) since they exhibit significant electrical and…”
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14
Activation of alkali-silica reactivity under microwave action and passivation of reactive aggregate by treatment with lithium nitrate
Published in Bulletin of engineering geology and the environment (01-12-2021)“…The alkali-silica reaction (ASR), developed in the presence of reactive mineral aggregates, is responsible for numerous cases of cracking and consequent…”
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15
Advancements in self-cleaning building materials: Photocatalysts, superhydrophobic surfaces, and biocides approaches
Published in Construction & building materials (05-07-2024)“…In recent years, there has been a growing interest in developing self-cleaning materials, with the civil construction sector embracing this trend. Titanium…”
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Nanocrystalline apatite formation on bioactive glass in a sol–gel synthesis
Published in Journal of non-crystalline solids (01-05-2016)“…The goal of this study was to understand the process involved in the formation of a nanocrystalline apatite phase during bioglass formation via a sol–gel…”
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The role of calcium nitrate in early crystallization of hydroxyapatite and its effects on the bioactivity and protein adsorption of a 58S glass
Published in Journal of non-crystalline solids (01-08-2024)“…•The time at which calcium is added during sol-gel synthesis strongly affects the glass structure and microstructure.•Protein adsorption can be modulated by…”
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18
Influence of hydrothermal carbonization on formation of curved graphite structures obtained from a lignocellulosic precursor
Published in Carbon (New York) (01-11-2014)“…In this letter we report the preparation of curved graphite structures from crude biomass by using hydrothermal carbonization followed by pyrolysis. High…”
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Graphene family (GFMs), carbon nanotubes (CNTs) and carbon black (CB) on smart materials for civil construction: Self-cleaning, self-sensing and self-heating
Published in Journal of Building Engineering (15-10-2024)“…The development of building materials capable of combining structural features with additional functionalities is a modern demand for creating smart and…”
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Carbon fiber effect on the physico-mechanical and durability properties of a cement/coir pith composite
Published in Sustainable Materials and Technologies (01-09-2020)“…Composites using renewable lightweight aggregates were produced with carbon fiber waste as reinforcement. The effects of the carbon fiber waste and high energy…”
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