Nanorods
Mostrando 13-24 de 32 artigos, teses e dissertações.
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13. Thermal Properties and Kinetics of Al/α-MnO2 Nanostructure Thermite
In this work, thermal properties and kinetics of Al-nanoparticles/α-MnO2 nanorods thermite were reported. The α-MnO2 nanorods were synthesized using a hydrothermal method and were characterized by X-ray powder diffraction (XRD) and X-ray photoelectron spectra (XPS), then combined with Al nanoparticles based on the ultrasonic mixing method to prepare the na
J. Braz. Chem. Soc.. Publicado em: 2018-02
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14. USO DE NANOBASTÕES DE OURO PARA O DESENVOLVIMENTO DE AULAS PRÁTICAS DE NANOTECNOLOGIA
A gold nanoparticles functionalization experiment was conducted in a biotechnology summer course at UFOP as a model for the introduction of the laboratory practice in nanotechnology for postgraduate courses in the areas of chemistry and biotechnology. The gold nanorods were synthesized by the seed method and then, functionalized with anti-IL-6 antibodies usi
Quím. Nova. Publicado em: 2017-06
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15. Growth of Li Doped Bismuth Oxide Nanorods and its Electrochemical Performance for the Determination of L-Cysteine
Li doped bismuth oxide nanorods have been prepared using sodium bismuthate and Li acetate. X-ray diffraction (XRD) pattern shows that the nanorods are composed of monoclinic Bi2O4 and cubic LiBi12O18.50 phases. Scanning electron microscopy (SEM) observation shows that the nanorods have the length and diameter of 1-5 µm and 50-350 nm, respectively. The forma
Mat. Res.. Publicado em: 13/03/2017
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16. Novel Gd(OH)3, GdOOH and Gd2O3 Nanorods: Microwave-Assisted Hydrothermal Synthesis and Optical Properties
We present a study of the controlled synthesis and optical properties of single-crystals Gd(OH)3, GdOOH and Gd2O3 nanorods. In this work, Gd(OH)3 nanorods were synthesized by a simple and fast microwave-assisted hydrothermal method. This process combined with the thermal decomposition oxidation of Gd(OH)3 nanorods as precursors enabled the preparation of sin
Mat. Res.. Publicado em: 29/08/2016
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17. Optical Band Gap Estimation of ZnO Nanorods
Abstract The optical band gap energy of ZnO nanorods was estimated by different methods found in literature. These nanorods were deposited onto TiO2 covered borosilicate glass substrates by aerosol assisted chemical vapor deposition. Characterization techniques were employed to reveal the crystalline structure, surface morphology and optical properties of th
Mat. Res.. Publicado em: 28/07/2016
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18. Hydrothermal Synthesis of Three-dimensional Butterfly-like Ni Architectures as Microwave Absorbers
AbstractThree-dimensional butterfly-like Ni architectures were fabricated by a surfactant-assisted hydrothermal method. The Ni architectures, with lengths of about 20 μm and widths of 4-6 μm, were assembled from tens of Ni nanorods with the averaged diameter of about 200 nm. The Ni nanorods were coated by oxide shells. The saturation magnetization of the N
Mat. Res.. Publicado em: 2015-10
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19. Recubrimiento controlado de sustratosde vidrio con nanobastones metálicos
ABSTRACTMonodispersed gold nanorods were synthesized with efficiency above 80% of all nanoparticles, characterized by longitudinal plasmon resonance around 800 nm. Glass substrates were surface modified and covered with the synthesized nanorods with control of surface density. Coverage dynamics was monitored through extinction spectra, and a saturation maxim
Matéria (Rio J.). Publicado em: 2015-09
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20. Optical absorption enhancement in sensitized ZnO nanorods for solar cells
ABSTRACTThe Optical Properties of ZnO Nanorods (NR) sensitized with different semiconductors in Core-Shell nanostructures were studied, comparing them with those of bare ZnO NR. Experimental measurements of Transmittance and Diffuse Reflectance show an increased light absorption at the solar spectrum and the appearances of new absorption edges (AE). The meas
Matéria (Rio J.). Publicado em: 2015-09
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21. Ablação tumoral fototérmica in vivo utilizando nanobarras de ouro / Photothermal tumor ablation in vivo using gold nanorods
Ultimamente têm-se buscado tratamentos menos invasivos para o câncer, como os que utilizam campos magnéticos ou luz, e dentre esses últimos, aqueles que fazem uso de materiais, geralmente metálicos, com propriedade de ressonância plasmônica de superfície. O tratamento hipertérmico encaixa-se neste perfil e já apresenta resultados promissores com na
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2012
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22. Synthesis and characterization of brush-like ZnO nanorods using albumen as biotemplate
Nanobastões de ZnO com morfologia similar à de escovas, estrutura cristalina do tipo wurtzita (hexagonal), diâmetro médio de 90 nm e comprimento >1 µm, foram preparados por calcinação (700 º C) do material híbrido (Zn(II)/albumina) obtido pelo método sol-gel reagindo-se acetato de zinco e clara de ovo, em meio aquoso. O material foi caracterizado p
Journal of the Brazilian Chemical Society. Publicado em: 2011-03
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23. SÃntese, dinÃmica de formaÃÃo, caracterizaÃÃo e propriedades Ãpticas de nanobastÃes de ouro dispersos em meio aquoso e matrizes orgÃnicas / Synthesis, characterization, dynamic formation and optical properties of gold nanorods dispersed in aqueous phase and organic matrices
Neste trabalho, diferentes colÃides contendo nanobastÃes de ouro dispersos em diferentes matrizes lÃquidas foram preparados a partir do Ãcido tetracloroÃurico (HAuCl4), em presenÃa de um agente redutor adequado, atravÃs do mÃtodo mediado por sementes. O brometo de cetiltrimetilamÃnio (CTAB) foi empregado como agente direcionador de crescimento. A va
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/04/2010
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24. Synthesis of carbonated hydroxyapatite nanorods in liquid crystals
Syntheses of calcium phosphate nanoparticles, carried out in systems formed from surfactant, oil and water, have resulted in materials with promising possibilities for application. The calcium phosphate particles were synthesized using two different liquid crystals, formed from RenexTM, cyclohexane and a salts solution. The morphology of the nanoparticles sy
Materials Research. Publicado em: 2009-09