Bruno Leandro Pereira
Federal University of Paraná
Surface modificationWettingNuclear chemistryComposite materialInorganic chemistryMetallurgyMaterials scienceCorrosionAnodizingScanning electron microscopePhosphoric acidAnatasePlasma electrolytic oxidationApatiteRutilePolyvinyl alcoholOxideAlloyChemical engineeringElastic modulusCrystallinityNanoindentationTitaniumNiobiumSessile drop techniqueElectrolyteTitanium alloy
18Publications
5H-index
106Citations
Publications 14
Newest
#1Viviane Seba (Athlone Institute of Technology)H-Index: 3
#2Gabriel Goetten de Lima (Athlone Institute of Technology)H-Index: 9
Last. Luis Octávio Regasini (UNESP: Sao Paulo State University)H-Index: 26
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Chalcones (1,3-diaryl-2-propen-1-ones) are naturally occurring polyphenols with known anticancer activity against a variety of tumor cell lines, including osteosarcoma (OS). In this paper, we present the preparation and characterization of spheres (~2 mm) from polyvinyl alcohol (PVA) containing a combination of 4′-Amino-1-Naphthyl-Chalcone (D14) and doxorubicin, to act as a new polymeric dual-drug anticancer delivery. D14 is a potent inhibitor of osteosarcoma progression and, when combined with ...
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#1Gregory Beilner (UFPR: Federal University of Paraná)H-Index: 1
#2Bruno Leandro Pereira (UFPR: Federal University of Paraná)H-Index: 5
Last. Michael J.D. NugentH-Index: 13
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Among titanium alloys with non-toxic elements, the Ti-25Nb-25Ta alloy has good elastic behavior for applications in osseous implants, biocompatibility, and excellent corrosion resistance. The present study aimed to better the biocompatibility characteristics of Ti-25Nb-25Ta alloy modifying its surface through Plasma Electrolytic Oxidation (PEO) treatment. The formed oxide coating is amorphous and composed of two distinct porous formations: smaller hole-shaped pores and larger volcano-like pores....
1 CitationsSource
#1Bruno Leandro Pereira (UFPR: Federal University of Paraná)H-Index: 5
#2Gregory Beilner (UFPR: Federal University of Paraná)H-Index: 1
Last. Michael J.D. Nugent (Athlone Institute of Technology)H-Index: 13
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Abstract Well-adhered nanotube arrays were produced through the anodizing technique on a Ti-25Nb-25Ta alloy and tribo-mechanically evaluated by nanoindentation and nanoscratch tests. Disregarding substrate effects, the hardness of the nanotube arrays layer was 0.7 ± 0.1 GPa and elastic modulus was
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#1Bruno Leandro Pereira (Athlone Institute of Technology)H-Index: 5
#2Carlos Maurício Lepienski (UFPR: Federal University of Paraná)H-Index: 26
Last. Michael J.D. Nugent (Athlone Institute of Technology)H-Index: 13
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2 CitationsSource
#1Gabriel Goetten de Lima (UFPR: Federal University of Paraná)H-Index: 9
#2Bruno Dias Ferreira (UFPR: Federal University of Paraná)H-Index: 1
Last. Washington Luiz Esteves Magalhães (UFPR: Federal University of Paraná)H-Index: 17
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Abstract Microfibrillated cellulose as a reinforcement agent has been investigated extensively due to their unique characteristics, which can reorder the structure of polymers and hydrogels leading to improved mechanical properties with minimal disadvantages in terms of the targeted original applications. However, effect of using a macro- to a micro-fibrillated cellulose onto polyvinyl alcohol hydrogels is still unknown, because of the unique ability for both to be produced as hydrogels from fre...
5 CitationsSource
#1Bruno Leandro Pereira (UFPR: Federal University of Paraná)H-Index: 5
#2Gregory Beilner (UFPR: Federal University of Paraná)H-Index: 1
Last. Michael J.D. Nugent (Athlone Institute of Technology)H-Index: 13
view all 10 authors...
Abstract Hydroxyapatite (HA) is a bioactive calcium phosphate capable of enhancing the implant/bone connection improving osteoconductivity and osseointegration process. However, the HA presents mechanical properties limiting its application. A good way to resolve this limitation is to combine the excellent biological properties of HA with materials with suitable mechanical behavior, like Ti-25Nb-25Ta alloy. The Ti-25Nb-25Ta alloy is composted by non-toxic and corrosion-resistant elements, presen...
7 CitationsSource
#1Anna Paulla Simon (UTFPR: Federal University of Technology - Paraná)H-Index: 3
#2Vidiany Aparecida Queiroz Santos (UFSCar: Federal University of São Carlos)H-Index: 1
Last. Mariana de Souza Sikora (UTFPR: Federal University of Technology - Paraná)H-Index: 3
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3 CitationsSource
#1Aline R. Luz (UFPR: Federal University of Paraná)H-Index: 4
#2Gabriel Goetten de Lima (UFPR: Federal University of Paraná)H-Index: 9
Last. Neide K. Kuromoto (UFPR: Federal University of Paraná)H-Index: 13
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Abstract A number of researches have been concerned about the development of β-type titanium alloys because they can present good biocompatibility, non-cytotoxicity, suitable mechanical and corrosion resistance behavior. However, due to their chemical inertness property, the surfaces of the novel Ti alloys must be modified by different methods to improve their bioactivity. This work is focused on the electrochemical surface modification of Ti-10Nb and Ti-20Nb alloys by Plasma Electrolytic Oxidat...
4 CitationsSource
#1Gabriel Goetten de Lima (Athlone Institute of Technology)H-Index: 9
#2Aline R. Luz (UFPR: Federal University of Paraná)H-Index: 4
Last. Michael J.D. Nugent (Athlone Institute of Technology)H-Index: 13
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Abstract The following chapter gives an overview of the anodic layers and nanotubes produced with plasma electrolytic oxidation. An introduction into the mechanisms involved in producing these nanofilms, such as the required processing parameters including voltage, current, and time, are discussed. In addition to an examination into the relation and the requirements for a good interface between the implant using these nanofilms and the bone, we also investigate and discuss the available commerci...
2 CitationsSource
#1Bruno Leandro Pereira (UFPR: Federal University of Paraná)H-Index: 5
#2Aline R. Luz (UFPR: Federal University of Paraná)H-Index: 4
Last. Neide K. Kuromoto (UFPR: Federal University of Paraná)H-Index: 13
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Abstract Niobium plates were electrochemically treated by Plasma Electrolytic Oxidation (PEO) with electrolytes containing phosphorous and/or calcium. Three different electrolyte and experimental parameters were used forming three different surfaces. Film morphology, thickness, and chemical composition were analyzed by scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS). A profilometer and the sessile drop technique measured the average surfaces roughness (Ra) and contac...
21 CitationsSource