Active Packing
Mostrando 1-12 de 58 artigos, teses e dissertações.
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1. Heterostructured Langmuir-Blodgett Films of Ruthenium Bipyridine with 1,3,4-Naphthooxadiazole-Derived Amphiphile Complex as a Charge Storage Electrode
The molecular control in Langmuir-Blodgett (LB) films may be exploited in charge storage electrodes provided a suitable choice of molecular architecture and components is made. In this paper, we employed a naphtyl-1,3,4-oxadiazole amphiphile (NFT1) and its complex [Ru(bpy)2NFT1]PF6 (RuNFT1) (bpy = 2,2’-bipyridine) in heterostructured LB films in a proof-of
J. Braz. Chem. Soc.. Publicado em: 2020-11
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2. Temporal Evolution of Roughness Development on Polymer Surfaces Exposed to Non-Thermal Plasma
Processes such as ablation, erosion and corrosion generally create roughness patterns on solid surfaces. Despite the randomness of this phenomenon, some patterns can be described mathematically by studying statistically the mechanisms behind them. This paper reports an experimental study on the temporal evolution of the roughness development of polymer surfa
J. Braz. Chem. Soc.. Publicado em: 2020-10
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3. COVID-19, Sistema Renina-Angiotensina, Enzima Conversora da Angiotensina 2 e Nicotina: Qual a Inter-Relação?
Processes such as ablation, erosion and corrosion generally create roughness patterns on solid surfaces. Despite the randomness of this phenomenon, some patterns can be described mathematically by studying statistically the mechanisms behind them. This paper reports an experimental study on the temporal evolution of the roughness development of polymer surfa
Arq. Bras. Cardiol.. Publicado em: 2020-10
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4. Benzodioxol Group Driving Supramolecular Arrangement of Two Tri-Methoxy Chalcones onto Β-Secretase 1 Enzyme Active Site
Chalcones are compounds with wide interesting biological activities including Alzheimer’s disease. A comparative study was performed between the chalcones (E)-1-(2-aminophenyl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one and 1-(6-amino-1,3-benzodioxol-5-yl)-3-(3,4,5-trimethoxyphenyl)prop-2-en-1-one regarding the influence of benzodioxol group on their molecu
J. Braz. Chem. Soc.. Publicado em: 16/09/2019
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5. Preservation of sweet red pepper paste quality: effect of packing material, ozone gas and protective agent use
Abstract Unlike conventional methods, sweet red pepper paste was produced by various techniques in assistance of various starter cultures. Products were stored at 37 °C for 60 days. Salinity, acidity, color change, invert sugar, brown pigment formation parameters were determined during storage period. Microbiological, statistical and sensory evaluation meth
Food Sci. Technol. Publicado em: 22/03/2018
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6. Solubility and dissolution studies of tibolone polymorphs
ABSTRACT Different solid forms of an active pharmaceutical ingredient can have distinct chemical and physical characteristics. In this work, we studied the solubility and dissolution properties of the described tibolone polymorphic forms (I and II). Both forms were successively recrystallized and characterized by powder X-ray diffraction and attenuated total
Braz. J. Pharm. Sci.. Publicado em: 05/03/2018
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7. Structure and dynamics of poly(9,9-dioctylfluoren-2,7-co-benzothiadiazole) (F8BT) and correlations with its electrical properties / Estrutura e dinâmica molecular do poly (9,9-dioctylfluoren-2,7-diyl-co-benzothiadiazole) (F8BT) e correlações com suas propriedades elétricas.
The PHD project has two main goals. The first one is specifically related to investigations on molecular dynamics, structural conformations and packing of polyfluorene-based polymers. For this purpose, Wide Angle X-Ray Diffraction (WAXD), Solid-State Nuclear Magnetic Resonance (NMR) and Dynamical-Mechanical Thermal Analysis (DMTA) are being used as the main
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2011
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8. Estudos voltamétricos e microgravimétricos da deposição em subtensão de cádmio e chumbo sobre filmes finos de selênio / Voltammetric and microgravimetric studies of underpotential deposition of cadmium and lead on selenium thin films
Cd and Pb underpotential deposition (UPD) on gold electrode and selenium thin film, from acid media, were studied using cyclic voltammetry (CV) and electrochemical quartz crystal microbalance (EQCM). Different form of deposition for cadmium and lead were observed on gold electrode and selenium thin film. The presence of one peak in the positive sweep with a
Publicado em: 2008
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9. Conformational polymorphism of modafinil investigated using DFT calculations and vibrational spectroscopy / Polimorfismo conformacional no modafinil investigado atravÃs de cÃlculos DFT e espectroscopia vibracional.
Polymorphism, defined as the ability of a molecule (or a set of molecules) to adopt several packing arrangements, became, in the last decades, a field of research on its own. Among other advantages of studying polymorphic systems, one can cite the study of the influence of molecular packing on solid-state properties, a better understanding of nucleation and
Publicado em: 2007
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10. SÃntese e caracterizaÃÃo de surfactantes glicosÃdicos a partir da amilose e alquil fenÃis extraÃdos do LCC. / Synthesis and characterization of glycosidic surfactantes from amylose and alkyl extracted phenols of the LCC.
Nonionic surfactants are synthesised from renewable raw materials such as fat acids and sugars. They are dermatological safe, biodegradable and provide excellent surface active properties, such as good wettability, good foaming production and good cleaning ability. The present work deals with the synthesis and characterization of alkyl polyglycosides where t
Publicado em: 2007
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11. "Estudo da ocorrência de acidentes entre trabalhadores de uma indústria frigorífica do Estado de São Paulo" / "A study on the occurrence of accidents among workers at a meat packing industry in the State of São Paulo"
Meat packing work is marked by repetitive activities; intense work rhythm; environments with inadequate levels of illumination, noise and temperature; presence of dust; small spaces and frequent handling of cutting instruments. These characteristics make this activity exhausting and dangerous and, hence, an interesting object of study, but is socially releva
Publicado em: 2006
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12. Protein-mediated surface structuring in biomembranes
The lipids and proteins of biomembranes exhibit highly dissimilar conformations, geometrical shapes, amphipathicity, and thermodynamic properties which constrain their two-dimensional molecular packing, electrostatics, and interaction preferences. This causes inevitable development of large local tensions that frequently relax into phase or compositional imm
Brazilian Journal of Medical and Biological Research. Publicado em: 2005-12