Search Results - "Rosa, Paulo de Tarso Vieira e"
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Encapsulation of anthocyanin-rich extract from blackberry residues by spray-drying, freeze-drying and supercritical antisolvent
Published in Powder technology (01-12-2018)“…The extract obtained from blackberry (Rubus fruticosus) residues was encapsulated in polyvinylpyrrolidone (PVP) by three methods: the conventional spray-drying…”
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2
Evaluation of organic modification of montmorillonite with ionic and nonionic surfactants
Published in Applied clay science (15-12-2017)“…This work aims at evaluating the organophilization of montmorillonite with two different types of surfactants: one ionic, containing C16-C18 di(alkyl ester)…”
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3
Single and hybrid organoclay‐filled PLA nanocomposites: Mechanical properties, viscoelastic behavior and fracture toughening mechanism
Published in Journal of applied polymer science (20-08-2021)“…Poly (lactic acid) (PLA) nanocomposites based on single and hybrid organic‐modified montmorillonites were previously studied in terms of their morphological,…”
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4
A comparative study of different routes for the modification of montmorillonite with ammonium and phosphonium salts
Published in Applied clay science (01-11-2016)“…The objective of this work was to use a statistical tool to study and evaluate the main parameters in the preparation of organo-montmorillonite (O-Mt) by using…”
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5
Influence of chemical composition of Brazilian organoclays on the morphological, structural and thermal properties of PLA-organoclay nanocomposites
Published in Applied clay science (01-11-2019)“…The effects of adding different Brazilian organoclays, containing di-(hydrogenated tallow) dimethyl ammonium chloride (HTA), trihexyl tetradecyl phosphonium…”
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Hybrid organo-montmorillonite produced by simultaneous intercalation of phosphonium and ammonium/amine based surfactants
Published in Materials chemistry and physics (01-10-2018)“…This study describes the preparation and characterization of hybrid organo-modified montmorillonite (OMt) produced by intercalation of phosphonium-based plus…”
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Supercritical carbon dioxide extraction of compounds from Schinus terebinthifolius Raddi fruits: Effects of operating conditions on global yield, volatile compounds, and antiproliferative activity against human tumor cell lines
Published in The Journal of supercritical fluids (01-12-2017)“…[Display omitted] •Supercritical CO2 extraction of compounds from S. terebinthifolius fruits is reported.•Effects on global yield, volatile compounds, and…”
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The effect of Brazilian organic-modified montmorillonites on the thermal stability and fire performance of organoclay-filled PLA nanocomposites
Published in Applied clay science (01-09-2020)“…To investigate the influence of chemical compositions of organoclays on the thermal stability and fire behavior of PLA nanocomposites, 2, 6 and 8 wt% of single…”
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9
Phytocosmetic Containing Pink Pepper Extracts Obtained by Sustainable Extraction
Published in Chemistry & biodiversity (01-09-2022)“…Pink pepper (Schinus terebinthifolius Raddi) has high potential for commercial use because of its biological activities (anti‐inflammatory, antitumor, and…”
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Kinetic models for extraction with supercritical carbon dioxide from pink pepper: Theoretical, empirical, and semi-empirical models and artificial neural network approach
Published in Chemical engineering journal advances (15-08-2023)“…•Kinetic models for supercritical CO2 extraction from pink pepper are reported.•Kinetics was governed by periods of falling extraction and diffusion-controlled…”
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11
Effect of process variables on imiquimod micronization using a supercritical antisolvent (SAS) precipitation technique
Published in The Journal of supercritical fluids (01-02-2022)“…This study aimed to promote the micronization of imiquimod, a poorly water-soluble immunostimulant drug, using the supercritical antisolvent (SAS) process. The…”
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12
Solubility of passion fruit (Passiflora edulis Sims) seed oil in supercritical CO2
Published in Fluid phase equilibria (01-08-2019)“…Supercritical fluid extraction (SFE) of crude oil from vegetable by-products have gained attention since they enhance the recovery of bioactive compounds with…”
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13
Supercritical cartilage decellularization: Cosolvent effect on mechanical properties
Published in The Journal of supercritical fluids (01-08-2024)“…Decellularized animal tissue may serve as scaffolds in tissue engineering. Despite the well-disseminated use of sodium dodecyl sulfate (SDS) for…”
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14
Properties of PLA/PCL particles as vehicles for oral delivery of the androgen hormone 17α-methyltestosterone
Published in Materials Science & Engineering C (01-01-2016)“…The aim of this study was to produce PLA (poly(lactic acid)) and PCL (polycaprolactone) oral carriers through the precipitation of the polymer solutions using…”
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15
Production of pure indinavir free base nanoparticles by a supercritical anti-solvent (SAS) method
Published in Drug development and industrial pharmacy (01-12-2014)“…Abstract Context: This work investigated the production of pure indinavir free base nanoparticles by a supercritical anti-solvent method to improve the drug…”
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16
Formation of PLA particles incorporating 17α-methyltestosterone by supercritical fluid technology
Published in The Journal of supercritical fluids (01-05-2013)“…[Display omitted] •We prepared particles containing hormone for sexual reversal in fish.•The influence of operational conditions on the particles features was…”
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17
Optimization of hydrodistillation and in vitro anticancer activity of essential oil from Schinus terebinthifolius Raddi fruits
Published in Chemical engineering communications (04-05-2019)“…Although several studies show that Schinus terebinthifolius Raddi fruits are a promising source of bioactive compounds, few studies have investigated the…”
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18
AVALIAÇÃO DE ASFALTENOS PRECIPITADOS EM DIFERENTES CONDIÇÕES DE COMPOSIÇÃO, TEMPERATURA E PRESSÃO
Published in Química Nova (2017)“…Asphaltenes are a heavy fraction of petroleum with the ability for self-association, a phenomenon that can occur spontaneously in the reservoirs or in any of…”
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19
Expanded-bed adsorption utilizing ion-exchange resin to purify extracellular beta-galactosidase
Published in Applied biochemistry and biotechnology (01-03-1998)“…The application of expanded-bed ion-exchange resins allows the elimination of intermediary particulate separation steps like filtration or centrifugation prior…”
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20
Intraspecific variability of Holostylis reniformis : concentration of lignans, as determined by maceration and supercritical fluid extraction (SFE-CO 2 ), as a function of plant provenance and plant parts
Published in Química Nova (01-01-2014)“…Maceration and supercritical fluid extraction were used to prepare extracts from parts of plants (Holostylis reniformis) collected in two different regions of…”
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