Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Igor F. Vasconcelos"'
Autor:
F. Anderson S. Lima, Michail J. Beliatis, Bérenger Roth, Thomas R. Andersen, Andressa Bortoti, Yegraf Reyna, Eryza Castro, Igor F. Vasconcelos, Suren A. Gevorgyan, Frederik C. Krebs, Mónica Lira-Cantu
Publikováno v:
APL Materials, Vol 4, Iss 2, Pp 026104-026104-7 (2016)
Solution processable semiconductor oxides have opened a new paradigm for the enhancement of the lifetime of thin film solar cells. Their fabrication by low-cost and environmentally friendly solution-processable methods makes them ideal barrier (hole
Externí odkaz:
https://doaj.org/article/783f0819dc4b4ceda68212d88d74b22e
A binuclear Fe(iii )/quinizarin complex as a structural model for anthracycline drugs binding to iron
Autor:
Juliana S. do Nascimento, Aurideia P. de Sousa, Ana C. S. Gondim, Eduardo H. S. Sousa, Edson H. Teixeira, Luiz Gonzaga do Nascimento Neto, Beatriz Pinheiro Bezerra, Alejandro Pedro Ayala, Alzir A. Batista, Igor F. Vasconcelos, Francisco G. S. Oliveira, Alda K. M. Holanda
Publikováno v:
New Journal of Chemistry. 46:5515-5525
Quinizarin, an anthracyclin-like compound, was used to prepare a binuclear complex, [(Fe(cyclam))2Qz]Cl(PF6)3, which showed damage to DNA with glutathione. This mimic of anthracyclin drugs might explain undesired side effects of these compounds.
Autor:
J. C. Sales, D. B. Freitas, J. P. C. do Nascimento, Anupama Ghosh, D. da M. Colares, T. O. Abreu, R. F. Abreu, Flávio Manoel Rodrigues da Silva, Igor F. Vasconcelos, Romualdo S. Silva, S. J. T. Vasconcelos, F. A. C. Nobrega, Francisco Gilvane Sampaio Oliveira, Antonio Sergio Bezerra Sombra
Publikováno v:
Journal of Electromagnetic Waves and Applications. 36:321-331
In this work, the influence of the addition of Bi2O3 on the dielectric properties in the microwave range of BiCu3Ti3FeO12 (BCTFO) ceramic matrix and its potential application as a dielectric resona...
Autor:
Carlos Henrique Nascimento Cordeiro, José Marcos Sasaki, Erandir Brasil da Silva, Francisco Gilvane Sampaio Oliveira, T. Dumelow, Edwalder Silva Teixeira, Igor F. Vasconcelos, João Maria Soares, André de Oliveira Girão Maia
Publikováno v:
Journal of Sol-Gel Science and Technology. 99:527-533
This work deals with the synthesis of superparamagnetic cobalt ferrite (CoFe2O4) nanoparticles, via a sol-gel method that uses gelatin as an organic precursor and a rapid thermal processing furnace with halogen lamps as a heat source. TEM, HRTEM, XRD
Autor:
L. P. M. Santos, M. P. S. Palácio, Igor F. Vasconcelos, F. G. S. Oliveira, V. M. R. Vasconcelos, M. S. Pereira, D. L. M. Vasconcelos, Paulo Freire
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 34:2845-2853
Nanoparticles of cobalt, nickel, and zinc spinel ferrites were successfully synthesized by a low-cost method named as proteic sol-gel method, and a comparative study was performed. Commercial metal nitrates and gelatin from bovine skin were used as p
Autor:
M. H. Bezerra Junior, R. G. M. Oliveira, Romualdo S. Silva, I. S. Queiroz Júnior, Marcelo Antônio Santos Da Silva, V. L. Bessa, Antonio Sergio Bezerra Sombra, Felipe F. do Carmo, M. S. Pereira, D. B. Freitas, J. E. V. de Morais, Igor F. Vasconcelos, H. D. de Andrade
Publikováno v:
Journal of Materials Science: Materials in Electronics. 32:11607-11615
In the present work, an electroceramic of the perovskite family, BiCu3Ti3FeO12 (BCTFO), was synthesized by the solid-state reaction method. The structural study was performed by X-ray diffraction and Mossbauer and Raman spectroscopy. Electric and die
Autor:
Pierre Basílio Almeida Fechine, Eduardo Albuquerque Araújo, M. S. Pereira, Igor F. Vasconcelos, Marcelo Antônio Santos Da Silva, Antonio Sergio Bezerra Sombra
Publikováno v:
Applied Physics A. 128
Molybdates from A2Mo3O12 family have been widely investigated due to its low sintering temperature, low thermal expansion coefficient, and low dielectric loss. Fe2Mo3O12 (FMO) is an oxide from this family and widely used in the catalytic field. The a
Autor:
Igor F. Vasconcelos, T. S. Ribeiro, M. S. Pereira, Manoel Ribeiro da Silva, Gislânia Maria S. L. Mendes
Publikováno v:
Journal of Superconductivity and Novel Magnetism. 33:1721-1728
In this research work, iron-doped tin dioxide nanoparticles were successfully produced by high-energy ball-milling and their structural and magnetic properties were evaluated by means of room temperature X-ray diffraction, Mossbauer spectroscopy, and
Autor:
Raí F. Jucá, Gilberto D. Saraiva, A.J. Ramiro de Castro, Francisco F.de Sousa, Francisco G.S. Oliveira, Igor F. Vasconcelos, G.D.S. Souza, João M. Soares, Carlos H.N. Cordeiro, W. Paraguassu
Publikováno v:
Vacuum. 202:111140
Autor:
Iury A. Paz, Cláudia F. Santos, Valdevane Rocha Araújo, Luiz Gonzaga de França Lopes, Eduardo H.S. Sousa, Elisane Longhinotti, Nilberto R.F. Nascimento, Camila P. Aquino, Igor F. Vasconcelos, Pedro Martins da Silva Filho, T. S. Ribeiro
Publikováno v:
Molecular Pharmaceutics. 16:2912-2921
Silica-based nanoparticles have been developed as powerful platforms for drug delivery and might also prevent undesired side effects of drugs. Here, a fast method to synthesize positively charged mesoporous silica nanoparticles (ζ = 20 ± 0.5 mV, su