Rhodamine B
Mostrando 25-36 de 149 artigos, teses e dissertações.
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25. Relined fiberglass post: an ex vivo study of the resin cement thickness and dentin-resin interface
Abstract The aim of this study was to evaluate the thickness of resin cements in the root thirds when using conventional fiberglass posts (CP) and relined fiberglass posts (RP) in weakened roots and to evaluate the morphological characteristics of the dentin-resin interface. Forty human maxillary anterior teeth had the crown sectioned below the cemento-ename
Braz. oral res.. Publicado em: 18/08/2016
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26. Water interaction and bond strength to dentin of dye-labelled adhesive as a function of the addition of rhodamine B
ABSTRACT Objective This study investigated the effect of the fluorescent dye rhodamine B (RB) for interfacial micromorphology analysis of dental composite restorations on water sorption/solubility (WS/WSL) and microtensile bond strength to dentin (µTBS) of a 3-step total etch and a 2-step self-etch adhesive system. Material and Methods The adhesives Adp
J. Appl. Oral Sci.. Publicado em: 2016-08
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27. Novel Ag3PO4/CeO2 p-n Hierarchical Heterojunction with Enhanced Photocatalytic Performance
The composite Ag3PO4/CeO2 photocatlyst, a novel p-n type heterojunction, has been successfully fabricated through a facile hydrothermal process combined with a successive in situ precipitation technique. The X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM) and UV-visible diffuse reflectance
Mat. Res.. Publicado em: 26/04/2016
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28. OBTAINING ZnO IMMOBILIZED OVER DIFFERENT SUBSTRATES BY HYDROTHERMAL TREATMENT FOR PHOTOCATALYSIS APPLICATION
The aim of this work is to systematically explore the effect of the synthesis conditions of ZnO structures, immobilized on different substrates by hydrothermal treatment, in its photocatalytic activity. A circumscribed central composite design of experiments was used to analyze the effects of reagents stoichiometry, reaction time and temperature, covering a
Quím. Nova. Publicado em: 2016-04
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29. One-step Synthesis of Ag3PO4/Ag Photocatalyst with Visible-light Photocatalytic Activity
AbstractA highly efficient photocatalyst Ag3PO4/Ag was prepared by a one-step low temperature chemical bath method. The reflectance spectra (DRS) indicated Ag3PO4/Ag had strong absorption in visible light region. The synthesized Ag3PO4/Ag photocatalyst was used as the efficient photocatalysts for the photocatalytic degradation of Rhodamine B (RhB) under visi
Mat. Res.. Publicado em: 2015-10
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30. PROTOTIPAGEM DE MICRORREATORES FOTOCATALÍTICOS E TESTES DE FOTODEGRADAÇÃO DE CORANTES ORGÂNICOS
A photocatalytic microreactor is defined as a microfluidic device, which is integrated with a photocatalytic coating of TiO2 deposited on the inner surface of microchannels. This device is capable of degradation of organic dye solution in water in a continuous flow under the action of ultraviolet light. The objectives of this work were to prese
Quím. Nova. Publicado em: 2015-07
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31. Enhanced Photocatalytic Activity of Pure Anatase Tio2 and Pt-Tio2 Nanoparticles Synthesized by Green Microwave Assisted Route
High-yield, rapid and facile synthesis of elongated pure anatase titania nanoparticles has been achieved through a nonaqueous microwave-based approach. The residual organics onto nanoparticles surfaces were completely removed through a new treatment under ozone flow, at room temperature in air. Such an ozone cleaning method revealed an effective inexpensive
Mat. Res.. Publicado em: 2015-06
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32. Effect of resin-modified glass-ionomer cement lining and composite layering technique on the adhesive interface of lateral wall
Interface integrity can be maintained by setting the composite in a layering technique and using liners. Objective The aim of this in vitro study was to verify the effect of resin-modified glass-ionomer cement (RMGIC) lining and composite layering technique on the bond strength of the dentin/resin adhesive interface of lateral walls of occlusal restorations.
J. Appl. Oral Sci.. Publicado em: 2015-06
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33. Resin-based sealer penetration into dentinal tubules after the use of 2% chlorhexidine gel and 17% EDTA: in vitro study
Aim: To evaluate, by confocal laser scanning microscopy (CLSM), the influence of 17% EDTA final irrigation on the penetration of an endodontic resin-based sealer into dentinal tubules after use of 2% chlorhexidine gel. Methods: Forty extracted bovine incisors were instrumented according to the groups: G1 - root canal preparation with 2% chlorhexidine gel (n=
Braz. J. Oral Sci.. Publicado em: 2014-12
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34. Isolation and characterization of novel thermophilic lipase-secreting bacteria
The purpose of the present study was to screen and identify the lipase-producing microorganisms from various regions of Iran. Samples collected from hot spring, Persian Gulf, desert area and oil-contaminated soil, were analyzed for thermophilic extracellular-lipase producing organisms. Six strains with high activity on rhodamine B plates were selected for ch
Braz. J. Microbiol.. Publicado em: 2013-12
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35. Síntese, caracterização e atividade fotocatalítica de catalisadores nanoestruturados de TiO2 dopados com metais
Titanium dioxide nanostructured catalysts (nanotubes) doped with different metals (silver, gold, copper, palladium and zinc) were synthesized by the hydrothermal method in order to promote an increase in their photocatalytic activity under visible light. The catalysts were characterized by X-ray diffraction, diffuse reflectance spectroscopy, transmission ele
Quím. Nova. Publicado em: 2013
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36. Estudo de internalização e viabilidade de nanopartículas multimodal para marcação de células-tronco mesenquimais de cordão umbilical humano
OBJETIVO: Analisar a estabilidade das nanopartículas magnéticas multimodais-Rhodamine B em meios de cultura para marcação celular e, consequentemente, estabelecer o estudo de detecção intracelular de nanopartículas magnéticas multimodais-Rhodamine B nas células marcadas, avaliando a viabilidade celular nas concentrações de 10µg Fe/mL e 100µg Fe/
Einstein (São Paulo). Publicado em: 2012-06