Search Results - "Laranjeira, M. C. M."

Reduction of acidity and removal of metal ions from coal mining effluents using chitosan microspheres by Laus, Rogério, Geremias, Reginaldo, Vasconcelos, Helder L., Laranjeira, Mauro C.M., Fávere, Valfredo T.

“…Effluents from coal mining operations are not only highly acid but also depict elevated concentrations of metals which may contaminate the environment. Due to…”
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Cross-linked quaternary chitosan as an adsorbent for the removal of the reactive dye from aqueous solutions by Rosa, Sirlei, Laranjeira, Mauro C.M., Riela, Humberto G., Fávere, Valfredo T.

“…Adsorption of reactive orange 16 by quaternary chitosan salt (QCS) was used as a model to demonstrate the removal of reactive dyes from textile effluents. The…”
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Evaluation of Remediation of Coal Mining Wastewater by Chitosan Microspheres Using Biomarkers by Benassi, J. C, Laus, R, Geremias, R, Lima, P. L, Menezes, C. T. B, Laranjeira, M. C. M, Wilhelm-Filho, D, Fávere, V. T, Pedrosa, R. C

“…Acidic mine waters have a marked influence on the surrounding environment and pose a serious threat through long-term environmental degradation. Therefore, it…”
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USE OF COAL MINING WASTE FOR THE REMOVAL OF ACIDITY AND METAL IONS AL (III), FE (III) AND MN (II) IN ACID MINE DRAINAGE by Geremias, R., Laus, R., Macan, J. M., Pedrosa, R. C., Laranjeira, M. C. M., Silvano, J., Fávere, F. V.

“…The coal industry may generate acid mine drainage (AMD) and mining wastes, which may adversely affect the quality of the environment. In this study we propose…”
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Chitosan functionalized with 2[-bis-(pyridylmethyl) aminomethyl]4-methyl-6-formyl-phenol: equilibrium and kinetics of copper (II) adsorption by Justi, Karin C., Laranjeira, Mauro C.M., Neves, Ademir, Mangrich, Antônio S., Fávere, Valfredo T.

“…The complexation agent 2[-bis-(pyridylmethyl) aminomethyl]-4-methyl-6-formyl-phenol (HL) was immobilized in chitosan in order to obtain a new adsorbent…”
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Impregnation and release of aspirin from chitosan/poly(acrylic acid) graft copolymer microspheres by NASCIMENTO, A, LARANJEIRA, M. C. M, FAVERE, V. T, JOSUE, A

“…The purpose of this study was to produce aspirin-impregnated microspheres of chitosan/poly(acrylic acid) copolymer in order to evaluate the release…”
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Effect of heparin coating on epichlorohydrin cross-linked chitosan microspheres on the adsorption of copper (II) ions by Coelho, Thalia C., Laus, Rogério, Mangrich, Antonio S., de Fávere, Valfredo T., Laranjeira, Mauro C.M.

“…Epichlorohydrin cross-linked chitosan microspheres (CS) and chitosan–heparin polyelectrolyte complex microspheres (CSH) were used in the adsorption of copper…”
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Development and Validation of an RP-HPLC Method to Quantitate Acyclovir in Cross-Linked Chitosan Microspheres Produced by Spray Drying by Stulzer, Hellen Karine, Tagliari, Monika Piazzon, Murakami, Fábio S., Silva, Marcos A.S., Laranjeira, Mauro C.M.

“…An accurate, simple, reproducible, and sensitive liquid chromatographic method is developed and validated to quantitate acyclovir (ACV) in cross-linked…”
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Lipid lowering activity of hydrosoluble chitosan and association with Aloe vera L. and Brassica olearaceae L by Geremias, R, Pedrosa, R.C, Locatelli, C, Favere, V.T. de, Coury-Pedrosa, R, Laranjeira, M.C.M

“…The lipid lowering activity of chitosan associated with Aloe vera L. or hydrosoluble chitosan with Brassica olearaceae L. has been studied in rats. In this…”
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Chitosan crosslinked with a metal complexing agent: Synthesis, characterization and copper(II) ions adsorption by Vasconcelos, Helder L., Camargo, Tiago P., Gonçalves, Norberto S., Neves, Ademir, Laranjeira, Mauro C.M., Fávere, Valfredo T.

“…In this study, chitosan was crosslinked using the complexing agent N-N′-[bis(2-hydroxy-3-formyl-5-methylbenzyl-dimethyl)]-ethylenediamine (H2fmbme). The…”
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Synthesis and Characterization of Crosslinked Maleyl Chitosan Microspheres Prepared by Coacervation Technique by Lacerda, L., Stulzer, H. K., Parize, A. L., Horst, B. L., Fávere, V. T., Laranjeira, M. C. M.

“…Crosslinked chitosan microspheres with different substitution degrees were prepared by the coacervation technique and chemically modified with maleic…”
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Microspheres of chitosan/poly(vinylalcohol) incorporating tetrasulphonated copper (II) phthalocyanine: preparation and characterization by STOLBERG, J, LARANJEIRA, M. C. M, SANCHEZ, M. N. M, KLUG, M, FAVERE, V. T

“…Tetrasulphonated copper (II) phthalocyanine (TCP), in the salt form, was incorporated into a blend of chitosan (CTS)/poly(vinylalcohol) (PVA) and microspheres…”
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Hydroxyapatites Produced by Wet-Chemical Methods by Donadel, Karina, Laranjeira, Mauro C. M., Gonçalves, Vanessa L., Fávere, Valfredo T., De Lima, João C., Prates, Luiz H. M.

“…Hydroxyapatite samples were produced by two different wet‐chemical methods, and characterized by X‐ray diffraction, infrared (IR), thermal gravimetric analysis…”
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Synthesis and characterization of cross-linked malonylchitosan microspheres for controlled release of acyclovir by Stulzer, Hellen Karine, Lacerda, Loreana, Tagliari, Monika P., Silva, Marcos A.S., Fávere, Valfredo T., Laranjeira, Mauro C.M.

“…The purpose of the present study was to obtain a polymeric system for delayed release of the drug acyclovir (ACV), which can be used for treatment of Herpes…”
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Chitosan microspheres containing the natural urucum pigment by Souza, T. C. R., Parize, A. L., Brighente, I. M. C., Fávere, V. T., Laranjeira, M. C. M.

“…An increasing trend in the food and pharmaceutical industries is toward replacing synthetic additives with natural products. However, in this regard,…”
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Remediation of coal mining wastewaters using chitosan microspheres by Geremias, R., Pedrosa, R. C., Benassi, J. C., Fávere, V. T., Stolberg, J., Menezes, C. T. B., Laranjeira, M. C. M.

“…This study aimed to evaluate the potential use of chitosan and chitosan/poly(vinylalcohol) microspheres incorporating with tetrasulphonated copper (II)…”
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Extraction Studies of Cd(II), Cu(II), Mn(II), Ni(II) and Zn(II) using N,N’,N,N’-Bis[(2-hydroxy-3,5-di-tert butylbenzyl)(2-pyridylmethyl)]-ethylenediamine as a Novel Ligand by R. Laus, , , , and, A. dos Anjos, R. E. H. M. B. Osório, A. Neves, M. C. M. Laranjeira, V. T. de Fávere

“…In the present study, the use of N,N’,N,N’-bis[(2-hydroxy-3,5-di-tert-butylbenzyl)(2-pyridylmethyl)]-ethylenediamine (H2L) as ligand was evaluated in the…”
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Synthesis of calcium-phosphate and chitosan bioceramics for bone regeneration by Finisie, M R, Josué, A, Fávere, V T, Laranjeira, M C

“…Bioceramic composites were obtained from chitosan and hydroxyapatite pastes synthesized at physiological temperature according to two different syntheses…”
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Application of chitosan functionalized with 8-hydroxyquinoline : Determination of lead by flow injection flame atomic absorption spectrometry by MARTINS, Amarildo Otavio, LUIZ DA SILVA, Edson, LARANJEIRA, Mauro C. M, DE FAVERE, Valfredo T

“…This work describes the application of chitosan - chemically modified with 8-hydroxyquinoline - in a simple and efficient preconcentration system using flow…”
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Eichhornia crassipes control in the largest Portuguese natural freshwater lagoon by Laranjeira, C.M, Nadais, G

“…Pateira de Fermentelos is one of the largest natural freshwater lagoons in the Iberian Peninsula (approximately 529 ha). It is an important and extensive humid…”
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