Laser Fluorescence
Mostrando 1-12 de 354 artigos, teses e dissertações.
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1. A química analítica aplicada aos estudos de pigmentos rupestres: uma revisão
Instrumental advances have been employed in the study of archeological remains such as prehistoric rupestrians paintings with the objective of chemically characterizing them in order to reconstruct the cultural technologies of a prehistoric human group and/or to support conservation science studies. The analytical techniques most commonly used in archaeometr
Química Nova. Publicado em: 2022
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2. Analysis of Nerve Endings in the Superior Labrum-Biceps Complex by Fluorescence Immunohistochemistry and Confocal Laser Microscopy
Resumo Objetivos As estruturas capsulo-ligamentares do ombro funcionam como estabilizadores estáticos, juntamente com os músculos do bíceps e do manguito rotador, aumentando a superfície de contato da cavidade glenoide. Terminações nervosas livres e mecanorreceptores foram identificados no ombro; no entanto, existem alguns estudos que descrevem a pres
Revista Brasileira de Ortopedia. Publicado em: 2022
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3. Impact of Continuing Education on the Quality of Blood Pressure Measurement
The properties of lanthanides allow them to be used as contrast agents for magnetic resonance imaging, thereby helping to differentiate between tissues, organs, and pathologies more efficiently. Lanthanides contain thermosensitive energy levels that aid identification of cancer and healthy cells. This work investigates the GdVO4 matrix obtained by the non-hy
Int. J. Cardiovasc. Sci.. Publicado em: 2021-02
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4. Er3+/Yb3+-Doped GdVO4 Obtained by the Non-Hydrolytic Sol-Gel Route and Potential Application as Up-Conversion Thermometer
The properties of lanthanides allow them to be used as contrast agents for magnetic resonance imaging, thereby helping to differentiate between tissues, organs, and pathologies more efficiently. Lanthanides contain thermosensitive energy levels that aid identification of cancer and healthy cells. This work investigates the GdVO4 matrix obtained by the non-hy
J. Braz. Chem. Soc.. Publicado em: 2021-02
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5. Direct Analysis of Human Hair Before and After Cosmetic Modification Using a Recent Data Fusion Method
The cosmetic modification of hair is a very common procedure used to mask or cover evidence at a crime scene. Deoxyribonucleic acid (DNA) tests are expensive and require good-quality collection of samples and a database profile. To overcome these challenges, direct analysis was performed on a large set of hair strands collected from individuals, denoted orig
J. Braz. Chem. Soc.. Publicado em: 2020-01
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6. Synthesis and Characterization of Fluorescent PVA/PVAc-Rodhamine Microspheres
Fluorescent polymeric microspheres are used in a wide range of biomedical and technological applications, including blood flow determination, screening, flow visualization, flow tracing, medical imaging, fluorescence microscopy and flow cytometry among others. Rhodamine 6G (R6G) is a lipophilic cationic dye, which is among the most stable organic fluorophore
Mat. Res.. Publicado em: 02/09/2019
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7. Characterization of clays from the State of Paraíba, Brazil for aesthetic and medicinal use
Resumo Este trabalho teve como objetivo avaliar a potencialidade das argilas do estado da Paraíba, visando suas aplicações em tratamentos medicinais, terapêuticos e estéticos. As amostras das argilas foram caracterizadas pelas técnicas de difração de raios X, composição química por fluorescência de raios X, termogravimetria, análise térmica dif
Cerâmica. Publicado em: 2019-01
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8. Síntese e caracterização das fases minerais C3S, C2S, C3A e C4AF para utilização em cimento tipo Portland
Resumo As principais fases contidas no cimento Portland são 3CaO.SiO2 (C3S), 2CaO.SiO2 (C2S), 3CaO.Al2O3 (C3A) e 4CaO.Al2O3.Fe2O3 (C4AF). No processo industrial estas apresentam incorporações de outros elementos que dependem das matérias-primas e dos combustíveis utilizados na queima. O uso das fases puras auxilia na compreensão dos fenômenos envolvid
Cerâmica. Publicado em: 2019-01
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9. Resíduo do processo Kraft (dregs) como matéria-prima alternativa para cerâmica vermelha
Resumo Neste trabalho foi avaliada a utilização de dregs, um resíduo sólido inorgânico proveniente do processo Kraft, como matéria-prima alternativa em cerâmica vermelha. As matérias-primas foram caracterizadas por fluorescência de raios X, difração de raios X, distribuição de tamanho de partículas, análise térmica diferencial e termogravimé
Cerâmica. Publicado em: 2019-01
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10. Physico-chemical characterization of centrifuged sludge from the Tamanduá water treatment plant (Foz do Iguaçu, PR)
ABSTRACT The water treatment process generates a residue called water treatment plant (WTP) sludge, which needs to be correctly characterized to ensure appropriate disposal or reuse. This study aimed to characterize the centrifuged sludge produced at the Tamanduá WTP, Iguaçu Falls City, Brazil, and considered opportunities for its reuse in the production o
Matéria (Rio J.). Publicado em: 18/10/2018
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11. Microstructural, thermochemistry and mechanical evaluation of self-reducing pellets using electric arc furnace (EAF) dust containing zinc for Waelz process
ABSTRACT The increment of recycling of steel using electric arc furnace and the tendency to coat of steel products with zinc, in order to prevent corrosion, has increased the proportion of galvanized scrap used worldwide in the recent years. Approximately 10 to 20 Kg/t of cast steel is generated in casting arcs. These collected dusts electric arc furnace (EA
Matéria (Rio J.). Publicado em: 19/07/2018
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12. A Practical Fluorescence-Based Screening Protocol for Polyethylene Terephthalate Degrading Microorganisms
We propose a practical, low-cost and selective fluorescence-based protocol adapted to identify polyethylene terephthalate (PET) degrading microorganisms. The microbial hydrolysis of PET nanoparticles was monitored by 2-hydroxyterephthalate, a fluorophore produced in situ after radical hydroxylation of terephthalic acid (TPA), the final hydrolysis product, by
J. Braz. Chem. Soc.. Publicado em: 2018-06