Intercalation Compounds
Mostrando 1-12 de 39 artigos, teses e dissertações.
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1. Synthesis of New 1,2,3-Triazolo-naphthalimide/phthalimide Conjugates via ‘Click' Reaction: DNA Intercalation and Cytotoxic Studies
Cancer is a complex disease which involves abnormalities of multiple cellular pathways. Current chemotherapeutic drugs are mainly designed to target the DNA and cell division. Therefore, in the present study, we have synthesized a new series of 1,2,3-triazolo-naphthalimide/phthalimide conjugates and evaluated their in vitro cytotoxicity against selected huma
J. Braz. Chem. Soc.. Publicado em: 2019-03
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2. Improved Method for Preparation of Methoxy-Modified Kaolinite
A hydrated kaolinite-methanol intercalation compound (Kaol-MeOH (hydrated)) was synthesized by utilizing kaolinite/dimethyl sulfoxide intercalation compound (Kaol-DMSO) as an intermediary, and further displacement intercalation with butyl trimethylammonium chloride (BTAC) was also carried out. The obtained samples were characterized by X-ray diffraction (XRD
J. Braz. Chem. Soc.. Publicado em: 2018-01
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3. INTERACTION OF CHALCONES WITH CT-DNA BY SPECTROPHOTOMETRIC ANALYSIS AND THEORETICALSIMULATIONS
Chalcones are open chain molecules precursors of flavonoids and isoflavonoids, found spread in edible plants. Because they are easily accessible trough Claisen Shmidt condensation, a great variety of derivatives are available. They have also shown potential in pharmacological and biological applications. It is known that chalcone derivatives display a role i
Quím. Nova. Publicado em: 2016-09
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4. Intercalação de íons lantanídeos e de poli(óxido de etileno) assistida por tensoativo na matriz hospedeira VOPO4.2H2O / Intercalation of ions Lanthanides and Poly (ethylene oxide) assisted by surfactant in host matrix of VOPO4.2H2O
Vanadium compounds are intensively studied due to their electrochemical, catalytic, magnetic and biological properties. In this work, our goal was to investigate the VOPO4.2H2O (vanadyl phosphate), which has a lamellar structure formed by VOPO4 sheets interconnected by weak interactions. Taking advantage of this structure, it is possible to synthesize severa
Publicado em: 2008
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5. Hybrid metal-organic nanocomposites based on vandium pentoxide / Nanocompósitos híbridos metal-orgânicos baseados em pentóxido de vanádio
Nanostructured systems based on the intercalation of molecular and supramolecular species into lamellar vanadium pentoxide xerogels are focused on this Thesis. The exciting characteristics of the supramolecular systems which are closely related to the nature, interaction and organization of the chemical species involved, have been exploited aiming their appl
Publicado em: 2008
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6. Estudo de metalofármacos antiinflamatórios de cobre e dos materiais híbridos resultantes de suas imobilizações no hidróxido duplo lamelar hidrotalcita: síntese, caracterização e avaliação da atividade farmacológica / Studies of Anti-inflammatory Copper-based Drugs and Corresponding Hybrid Materials from their Immobilization on the Layered Double Hydroxide Hydrotalcite: Synthesis, Characterization and Evaluation of Pharmacological Activities
Non-steroidal anti-inflammatory drugs are widely consumed to treat inflammatory diseases and pain but their clinical use are limited due to serious side-effects on the gastrointestinal tract. The bioactivity of metal complexes exhibits great interest in metal-based drug research. Cu(II)-NSAID compounds show good anti-inflammatory property and decreased side-
Publicado em: 2007
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7. Preparação e caracterização de pentóxido de vanádio mesoporoso e reações de intercalação / Synthesis and characterization of mesoporous vanadium pentoxide and intercalation reaction
Synthesis, characterization of vanadium pentoxide mesoporous and studies of properties of hybrids compound based on vanadium oxide xerogel and vanadium pentoxide mesoporous, intercalated with guest species have been the main of this thesis. The interest in those materials, that present a considerable structural and chemical modification, is due to the possib
Publicado em: 2007
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8. Preparation, structural and electrochemical properties of V2O5-WO3 xerogel composite / Obtenção, caracterização e estudos das propriedades de compósitos formados por xerogéis de pentóxido de vanádio e óxido de tungstênio
Vanadium pentoxide xerogel has a bi-dimensional structure which is suitable for intercalation of a variety of ions, organic compounds, and even polymeric species. In addition, when associated with other metal oxides such as WO3 and MoO3, it presents an important role in catalysis, since the resulting oxides act as promoters in catalytic reduction of the NOx
Publicado em: 2007
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9. Lithium dynamics in molybdenum disulfide intercalation compounds studied by nuclear magnetic resonance
Cluster architecture and lithium motion dynamics are investigated in nanocomposites formed by the intercalation of lithium and a dialkylamine (diethylamine, dibutylamine and dipentylamine) in molybdenum disulfide by means of 7Li Nuclear Magnetic Resonance (NMR) technique. The present contribution illustrates the potential of the NMR techniques in the study o
Brazilian Journal of Physics. Publicado em: 2006-03
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10. Estrutura lamelar versus estrutura pirocloro : obtenção de compostos do tipo H IND.1-x Ag IND.x Ta W O IND.6 e reação de intercalação/inserção de amina linear / Lamellar structure versus pyrochlore structure: preparation of the compounds H IND.1-x Ag IND.x Ta W O IND.6 and intercalation/insertion reactions of linear amines
O presente Trabalho trata da obtenção do óxido HTaWO6.H2O nas formas: bidimensional (trirrutilo lamelar) e tridimensional (pirocloro com canais). Os compostos foram preparados a partir de reações de troca iônica do metal alcalino pelo próton nas respectivas fases (Li ou K)TaWO6. A síntese das fases precursoras envolveu típicas reações de estado s�
Publicado em: 2006
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11. Study of aplication of Layered Double Hydroxides in removal and slow release of pesticides / Estudo da aplicação de hidróxidos duplos lamelares na remoção e liberação lenta de pesticidas
The extensive use of pesticides in modern agriculture has been contributing to an increase in environmental contamination. Layered Double Hydroxides (LDHs), or anionic clays, bear a layered structure, and a variety of anions can be intercalated between these layers through electrostatic interactions. These layered materials can be used in adsorption/sorption
Publicado em: 2006
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12. Nanotubos e nanobastões de oxidos e sulfetos de metais de transição obtidos via sistemas bidimensionais (lamelares) : preparação, caracterização e propriedades / Nanotubes and nanorods of transition metal oxides and sulfides obtained from bidimensional systems (layered compunds) : preparation, characteization and properties
This Thesis reports the preparation, characterization and properties of nanotubes and nanorods of transition metal oxides and sulfides obtained from bidimensional (Iamellar) structures. From the structural point view, nanotubes could be formed from bidimensional compounds by rolling its layers generating scroll-like nanotubes, or by the elimination of dangli
Publicado em: 2006