Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Bartolomeu C, Viana"'
Autor:
Raimundo L.S. Pereira, Ana C.J. de Araújo, Priscilla R. Freitas, Isaac M. Araújo, Sheila A. Gonçalves, Suziete B.S. Gusmão, Ramón R. Peña-Garcia, Yuset G. Dávila, Bartolomeu C. Viana, João H. da Silva, Irwin R.A. de Menezes, Henrique D.M. Coutinho, Alexandre M.R. Teixeira
Publikováno v:
Results in Chemistry, Vol 6, Iss , Pp 101162- (2023)
In this work, we report the synthesis of Na-TiNTs sodium titanate nanotubes prepared by the hydrothermal method in a highly alkaline subsequently modified by the substitution of Na+ ions present in the walls of the nanotubes by ions of Sr2+ and Ga3+
Externí odkaz:
https://doaj.org/article/8a0fe2f570934d7b81ff284a457345b0
Autor:
W.J. Sousa, Bartolomeu C. Viana, João M. Soares, R.B. da Silva, R. Peña-Garcia, E. Padrón-Hernández
Publikováno v:
Results in Physics, Vol 53, Iss , Pp 107004- (2023)
This paper presents the behavior of saturation magnetization and other magnetic properties depending on the temperature variation from the nanoparticles of YIG doped and co-doped with Gd and La at different concentrations. The samples were prepared a
Externí odkaz:
https://doaj.org/article/1fb70012e8f241ff9158ebc3f9cff8fb
Autor:
Marília C. R. Silva, Samuel Castro-Lopes, Aimée G. Jerônimo, Ricardo Barbosa, Alexsandro Lins, Pollyana Trigueiro, Bartolomeu C. Viana, Francisca P. Araujo, Josy A. Osajima, Ramón R. Peña-Garcia
Publikováno v:
Molecules, Vol 29, Iss 2, p 391 (2024)
We present a study on the green synthesis of undoped and Er-doped ZnO compounds using Mangifera indica gum (MI). A set of tests were conducted to assess the structure of the material. The tests included X-ray diffraction, Raman, and Fourier-transform
Externí odkaz:
https://doaj.org/article/657b0286248d468cb7197864e39bf883
Autor:
Michelle de P. Madeira, Suziete B.S. Gusmão, Idglan S. de Lima, Gabriella M.D. Lemos, Humberto M. Barreto, Érika de A. Abi-chacra, Maria L. Vega, Angel A. Hidalgo, Francisco E.P. Santos, Edson C. Silva-Filho, Bartolomeu C. Viana, J.A. Osajima
Publikováno v:
Journal of Materials Research and Technology, Vol 19, Iss , Pp 2104-2114 (2022)
Here, the present work aimed to investigate the wettability of the sodium titanate nanotubes films and evaluate the antibacterial activity of the nanotubes powder under light and bacterial adhesion assay. The films were deposited by electrophoretic d
Externí odkaz:
https://doaj.org/article/975cbb50638c43308317d693466140fa
Autor:
F. D. V. Araujo, F. W. N. Silva, T. Zhang, C. Zhou, Zhong Lin, Nestor Perea-Lopez, Samuel F. Rodrigues, Mauricio Terrones, Antônio Gomes Souza Filho, R. S. Alencar, Bartolomeu C. Viana
Publikováno v:
Materials, Vol 16, Iss 7, p 2591 (2023)
Among the most studied semiconducting transition metal dichalcogenides (TMDCs), WS2 showed several advantages in comparison to their counterparts, such as a higher quantum yield, which is an important feature for quantum emission and lasing purposes.
Externí odkaz:
https://doaj.org/article/6ceee9c057a341b7bd6523dd77390cbe
Autor:
Enzo V. H. Agressott, Mauro M. Oliveira, Thiago S. Freitas, Raimundo L. S. Pereira, Ana R. P. Silva, Rafael P. Cruz, Antonia T. L. Santos, Alexandre M. R. Teixeira, Tainara G. Oliveira, João H. da Silva, Alexandre R. Paschoal, Bartolomeu C. Viana, Paulo de Tarso C. Freire, Abolghasem Siyadatpanah, Polrat Wilairatana, Henrique D. M. Coutinho
Publikováno v:
Bioinorganic Chemistry and Applications, Vol 2022 (2022)
Titanium nanotubes have attractive morphological and physicochemical properties for several applications, such as high surface area, mesoporous structure, good stability, ion exchange capacity, and antibacterial property. Therefore, the field of nano
Externí odkaz:
https://doaj.org/article/1fc72834b322402482eb61d2bf2a1b8b
Autor:
Gelson L. C. Rodrigues, Tainara G. de Oliveira, Suziete B. S. Gusmão, Odair P. Ferreira, Thiago L. Vasconcelos, Yuset Guerra, Raquel Milani, Ramón Peña-Garcia, Bartolomeu C. Viana
Publikováno v:
Materials, Vol 16, Iss 5, p 1842 (2023)
Titanate nanotubes were synthesized and subjected to an ion exchange reaction with erbium salt aqueous solution to obtain titanate nanotubes exchanged with erbium (3+) ions. In order to evaluate the effects of the thermal treatment atmosphere on the
Externí odkaz:
https://doaj.org/article/063b55939fb24ab88464082541e9ccc2
Autor:
Suziete B. S. Gusmão, Anupama Ghosh, Alan S. de Menezes, Antônio F. M. Pereira, Miriam T. P. Lopes, Madaline K. Souza, Dalton Dittz, Guilherme J. P. Abreu, Lucielma S. S. Pinto, Antônio L. M. Maia Filho, Gustavo O. M. Gusmão, Thomas J. Webster, Anderson O. Lobo, Bartolomeu C. Viana
Publikováno v:
Journal of Functional Biomaterials, Vol 13, Iss 4, p 306 (2022)
Strategies for the production of new nanocomposites that promote bone tissue regeneration are important, particularly those that enhance the osteoinduction of hydroxyapatite in situ. Here, we studied and report the synthesis of nanohydroxyapatite and
Externí odkaz:
https://doaj.org/article/635d8b952682411095cb0a12848f5726
Autor:
André L. F. C. Melo, Marcelo T. Carneiro, Ariane M. S. S. Nascimento, Alan I. S. Morais, Roosevelt D. S. Bezerra, Bartolomeu C. Viana, Josy A. Osajima, Edson C. Silva-Filho
Publikováno v:
Materials, Vol 15, Iss 24, p 9076 (2022)
Given the increase in environmental pollution, especially of water, the emergence of studies that seek to develop strategies to mitigate/treat such effects have gained prominence in the world scientific community. Among the numerous adsorption proces
Externí odkaz:
https://doaj.org/article/248b313c2c924a3fa4ddbbad38d8a57f
Autor:
Rubens S. Costa, Manuela O. de Castro, Gabriela H. da Silva, Fabricio de S. Delite, Mathias Strauss, Odair P. Ferreira, Diego S.T. Martinez, Bartolomeu C. Viana
Publikováno v:
Carbon Trends, Vol 5, Iss , Pp 100133- (2021)
The present study provides amethodology for the synthesis of carbon dots through hydrothermal carbonization of the babassu coconut (Orbignya speciosa) mesocarp as a precursor matrix. The synthesis parameters (temperature, residence time and% m/v) wer
Externí odkaz:
https://doaj.org/article/399ba36abd5249e19c3ad6e33abff241