Výsledky vyhledávání - "W W R, Araujo"

Influence of Magnetic Field on the Two-Photon Absorption and Hyper-Rayleigh Scattering of Manganese–Zinc Ferrite Nanoparticles

Autor: W. W. R. Araujo, Antônio Martins Figueiredo Neto, J. P. Siqueira, Cristiano L. P. Oliveira, Kinnari Parekh, E. S. Gonçalves, Leandro H. Z. Cocca, Cleber Renato Mendonça, Leonardo De Boni

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Magnetic nanoparticles based on manganese–zinc ferrite presenting spherical and cubic shapes, verified by small-angle X-rays scattering, were studied by means of the hyper-Rayleigh scattering, the Z-Scan technique in the open-aperture configuration

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13b6c3cbbe85e9f8361f896d55974ff0
https://doi.org/10.1021/acs.jpcc.9b10208

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Synthesis and structural characterization of gold nanorods

Autor: Alan Silva de Menezes, Gabriel Braga Marques Teobaldo, Larissa Otubo, Cristiano L. P. Oliveira, W. W. R. Araujo, Paulo R. A. F. Garcia

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Gold cylinders with nanometric dimensions were successfully synthesized and characterized by X-ray scattering and diffraction, transmission electron microscopy, dynamic light scattering, and ultraviolet–visible spectroscopy. A small change on the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbf23b08e80d0594a118f51f9b3ce355

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Ultraviolet-C decontamination of a dental clinic setting: required amount of UV light

Autor: Maria Cecília Barbosa da Silveira Salvadori, Sergio Brossi Botta, Alessandra Cassoni, Fernando Seishim Hanashiro, W. W. R. Araujo, Fernanda de Sá Teixeira

Publikováno v: Brazilian Dental Science. 23

Viruses can spread to the environment, and it can be challenging to clear it. A direct approach to limit airborne transmission of pathogens in dental clinic offices is to inactivate viruses within a short time of their production and block the person

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b1a3924cbb33bc08125ac8068e2d584
https://doi.org/10.14295/bds.2020.v23i2.2275

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Scanning Magnetic Microscope Using a Gradiometric Configuration for Characterization of Rock Samples

Autor: Andre L. A. Reis, Elder Yokoyama, Amanda F. Santos, Jefferson F.D.F. Araujo, Leonardo A. F. Mendoza, W. W. R. Araujo, Angela A. P. Correa, Tahir, Fredy G. Osorio G., G. E. S. Brito, Tommaso Del Rosso, Marcos A. C. Pacheco, Vanderlei C. Oliveira, Antonio C. Bruno, Cleanio Luz-Lima

Publikováno v: Materials
Materials; Volume 12; Issue 24; Pages: 4154

Scanning magnetic microscopy is a tool that has been used to map magnetic fields with good spatial resolution and field sensitivity. This technology has great advantages over other instruments; for example, its operation does not require cryogenic te

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f0e3c7082cf58b1e0d29153d45462866
http://europepmc.org/articles/PMC6947304

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Magnetic, structural and cation distribution studies on $\mathrm{FeO}\cdot\mathrm{Fe}_{(2-x)}\mathrm{Nd}_{x} \mathrm{O_{3}}$ (x = 0.00, 0.02, 0.04, 0.06 and 0.1) nanoparticles

Autor: Cristiano L. P. Oliveira, W. W. R. Araujo, Jefferson F.D.F. Araujo, G. E. S. Brito, A. M. Figueiredo Neto

Publikováno v: The European Physical Journal E. 42

We synthesized and characterized the colloidal suspensions of [Formula: see text] nanoparticles with x = 0.00, 0.02, 0.04, 0.06 and 0.1. The effect of the Fe3+ ion replacement by Nd3+ on the crystal structure is in-depth studied. The samples were cha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a064d51efa5cb7205bba2aaaa5960b4e
https://doi.org/10.1140/epje/i2019-11917-5

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Scanning Magnetic Microscope Using A Hall-Effect Sensor for Images of Remanent Magnetization Fields

Autor: Elder Yokoyama, G G Fredy Osorio, Antonio C. Bruno, Tommaso Del Rosso, Vanderlei C. Oliveira, Marcos A. C. Pacheco, Jefferson F.D.F. Araujo, G. E. S. Brito, W. W. R. Araujo, Angela A. P. Correa, Andre L. A. Reis, Leonardo A. F. Mendoza, Amanda F. Santos, Tahir Tahir, Cleanio Luz-Lima

Scanning magnetic microscopy is a new tool that has recently been used to map magnetic fields with good spatial resolution and field sensitivity. This technology has great advantages over other instruments; for example, its operation does not require

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3a93a98a3d94d8dbe93cc8fb96ea1c9
https://doi.org/10.20944/preprints201910.0210.v1

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Magnetic, structural and cation distribution studies on [Formula: see text] (x = 0.00, 0.02, 0.04, 0.06 and 0.1) nanoparticles

Autor: W W R, Araujo, J F D F, Araujo, C L P, Oliveira, G E S, Brito, A M, Figueiredo Neto

Publikováno v: The European physical journal. E, Soft matter. 42(12)

We synthesized and characterized the colloidal suspensions of [Formula: see text] nanoparticles with x = 0.00, 0.02, 0.04, 0.06 and 0.1. The effect of the Fe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::e030e422e403d4b7d4bd8db6da171adb
https://pubmed.ncbi.nlm.nih.gov/31802279

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Interface tailoring for adhesion enhancement of diamond-like carbon thin films

Autor: Ian G. Brown, Maria Cecília Barbosa da Silveira Salvadori, Fernanda de Sá Teixeira, W. W. R. Araujo, L. G. Sgubin

Publikováno v: Diamond and Related Materials. 25:8-12

We have explored the suitability and characteristics of interface tailoring as a tool for enhancing the adhesion of hydrogen-free diamond-like carbon (DLC) thin films to silicon substrates. DLC films were deposited on silicon with and without applica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ae1ea595fa3c7e052e21b6104ea89f74
https://doi.org/10.1016/j.diamond.2012.02.005

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Environmental effects in kelvin force microscopy of modified diamond surfaces

Autor: Maria Cecília Barbosa da Silveira Salvadori, W. W. R. Araujo, Fernanda de Sá Teixeira, Ian G. Brown, Mauro Sergio Dorsa Cattani

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We have explored the effects of atmospheric environment on Kelvin force microscopy (KFM) measurements of potential difference between different regions of test polycrystalline diamond surfaces. The diamond films were deposited by microwave plasma-ass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1cd0e0cb7f5d8eccc104d8a37bbefe1f
https://doi.org/10.1002/jemt.22022

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