Poly Methylene Blue
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. Poly(methylene blue)-modified electrode for indirect electrochemical sensing of OH radicals and radical scavengers
ABSTRACT A new modified electrode for indirect sensing of OH· and radical scavengers was described. The electrochemical polymerization of methylene blue in aqueous solutions and the properties of the resulting films on a glassy carbon electrode were carried out using cyclic voltammetry. A surface coverage of 1.11 × 109mol cm2 was obtained, revealing a comp
An. Acad. Bras. Ciênc.. Publicado em: 14/08/2017
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2. Development of poly (methylene blue) modified electrode for the determination eletroanalítica of glyphosate / Desenvolvimento de eletrodo modificado com polímero de azul de metileno para a determinação eletroanalítica de glifosato
O presente trabalho descreve o preparo, a caracterização e o uso de eletrodo modificado com polímero de azul de metileno (PMB) imobilizado sobre a superfície de eletrodo de carbono vítreo (GCE-PMB) na análise do herbicida glifosato. O método utilizado para a preparação dos filmes do PMB foi a eletropolimerização. Os filmes preparados por este mét
Publicado em: 2010
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3. Development platform functionalized with poly(4-HBA) for use in biological sensors / Desenvolvimento de plataforma funcionalizada com poli(4-HBA) para aplicação em sensores biológicos
In this work, the 4-hidroxtbenzoic acid electropolymerization was investigated aiming at its application as functionalized platform in biomolecule immobilization in order to develop biological sensors. The material was adsorbed over graphite electrode and electrochemically characterized by cyclic voltammetry and electrochemical impedance spectroscopy. This a
Publicado em: 2009
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4. Desenvolvimento de sensor bioletroquímico para detecção da hanseníase
Leprosy is a chronic, granulomatous and dermatological disease, from infection caused by the bacillus Mycobacterium leprae. It is object of intervention of the state, because when untreated cause disability in the economically active population. Brazil remains one of the four endemic countries responsible for 34% of all cases registered at the beginning of 2
Publicado em: 2008
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5. Preparação, caracterização morfologica e aplicações de hidrogeis de P(N-isopropilacrilamida-co-acido acrilico) / Preparation, morphological characterization of P(NIPAAM-CO-AAc) hydrogels
Hydrogels composed of polymeric networks are of great interest as biomaterials. In this work hydrogels of poly(N-isopropilacrilamide) copolimerized with acrylic acid (P(NIPAAm-co-AAc)) and cross-linked with metilene-bisacrilamide (MBAAm) at different cross-linking degrees, interpenetrated (IPNs) and semi-IPNs with PVA. The presence of AAc allowed increasing
Publicado em: 2008
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6. Measurement of the electrostatic charge in airborne particles: II - particle charge distribution of different aerosols
This work gives sequence to the study on the measurement of the electrostatic charges in aerosols. The particle charge classifier developed for this purpose and presented in the previous paper (Marra and Coury, 2000) has been used here to measure the particle charge distribution of a number of different aerosols. The charges acquired by the particles were na
Brazilian Journal of Chemical Engineering. Publicado em: 2006-03
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7. Endothelium-dependent relaxation in response to poly-L-arginine in canine coronary arteries: implications about hyperpolarization as a mechanism of vasodilatation
OBJECTIVE: To study the mechanism by which poly-L-arginine mediates endothelium-dependent relaxation. METHODS: Vascular segments with and without endothelium were suspended in organ chambers filled with control solution maintained at 37ºC and bubbled with 95% O2 / 5% CO2. Used drugs: indomethacin, acetycholine, EGTA, glybenclamide, ouabain, poly-L-arginine,
Arquivos Brasileiros de Cardiologia. Publicado em: 2003-06
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8. Decolorization of Azo, Triphenyl Methane, Heterocyclic, and Polymeric Dyes by Lignin Peroxidase Isoenzymes from Phanerochaete chrysosporium
The ligninolytic enzyme system of Phanerochaete chrysosporium decolorizes several recalcitrant dyes. Three isolated lignin peroxidase isoenzymes (LiP 4.65, LiP 4.15, and LiP 3.85) were compared as decolorizers with the crude enzyme system from the culture medium. LiP 4.65 (H2), LiP 4.15 (H7), and LiP 3.85 (H8) were purified by chromatofocusing, and their kin