Results 1 to 10 of about 509,678 (183)
Drying study of siloxane-PMMA hybrid materials prepared by the sol-gel process
Eclética Química, 2018 Híbridos siloxano-PMMA apresentando ligações covalentes entre as fases orgânica e inorgânica foram preparados a partir do processo sol-gel. O efeito da fração em massa de fase siloxano no mecanismo de secagem dos géis a 50oC foi estudado através de ...
Ana Paula Sacco +3 more
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EFFECT OF MAGNESIUM ADDITION ON THE VACANCY-Mg BINDING FREE ENTHALPY IN Al-Cr ALLOYS
Eclética Química, 2018 The Mg-vacancy binding free enthalpy of Al-Cr solid solution alloys with Mg addition was calculated by electrical resistivity measurements. The obtained value is lower than that obtained for dilute Al-Mg alloys with almost the same Mg content and may be ...
Carlos Roberto Roberto Sobreira BEATRICE +3 more
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Antibiotics, 2023 Invasive candidiasis is an important cause of morbidity and mortality, and its occurrence is increasing due to the growing complexity of patients. In particular, Candida albicans exhibits several virulence factors that facilitate yeast colonization in ...
Paula V. Cordero +4 more
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Pseudo-Stem Banana Fibers: Characterization and Chromium Removal
Orbital: The Electronic Journal of Chemistry, 2013 In this work, pseudo-stems of the banana tree were collected, characterized and used as adsorbent materials for the removal of the chromium ions from aqueous solution.
Helena Becker +5 more
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Porphyrin–Schiff Base Conjugates Bearing Basic Amino Groups as Antimicrobial Phototherapeutic Agents
Molecules, 2021 New porphyrin–Schiff base conjugates bearing one (6) and two (7) basic amino groups were synthesized by condensation between tetrapyrrolic macrocycle-containing amine functions and 4-(3-(N,N-dimethylamino)propoxy)benzaldehyde. This approach allowed us to
María E. Pérez +5 more
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Estudo das Propriedades do Pseudofruto do Cajueiro na Adsorção de Cr (VI)
Orbital: The Electronic Journal of Chemistry, 2013 In this study, the Cr (VI) adsorption properties by cashew (Anacardium occidentale L.) were studied in a batch system. The effects of pH (5.0 and 7.0), drying process – S (oven-dried and lyophilized), particle size – P (0.10 – 0.25 and 0.25 – 0.84 mm ...
Thiago C. Medeiros +3 more
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Influência dos íons K + e Mg 2+ na obtenção de apatitas biomiméticas
Eclética Química, 2018 O crescimento da hidroxiapatita - HA, tanto no meio biológico quanto em soluções aquosas como a Synthetic Body Fluid - SBF, ocorre em meio contendo, além dos elementos Ca e P, elementos- traços essenciais tais como: Mg 2+ , HCO 3- , K + e Na + .
A. H. Aparecida +3 more
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Frontiers in Chemistry, 2017 The interaction of volatile corrosion inhibitors (VCI), caprylate salt derivatives from amines, with zinc metallic surfaces is assessed by density functional theory (DFT) computer simulations, electrochemical impedance (EIS) measurements and humid ...
Marco A. G. Valente +6 more
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GENERALIZAÇÃO DE UM MODELO LINEAR DE IMPEDÂNCIA ELETROQUÍMICA
Eclética Química, 2018 Em geral, a função de um modelo de impedância para processos de eletrodo simples é deduzida de um modelo elétrico equivalente, denominado circuito de Randles.
J. M. V. CAPELA +2 more
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Revista de Metalurgia, 1997 Utilizando el electrodo cilíndrico rotatorio y técnicas electroquímicas, se estudió la eficiencia de la protección contra la corrosión de un inhibidor comercial utilizado en soluciones de ácido clorhídrico con y sin adiciones de tiourea y bifluoruro de ...
V. M. Salinas-Bravo +1 more
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