Search Results - "Antonini, Leonardo"

Corrosion resistance and tribological behavior of ZK30 magnesium alloy coated by plasma electrolytic oxidation by da Silva Rodrigues, Joel, Marasca Antonini, Leonardo, da Cunha Bastos, António Alexandre, Zhou, Jie, de Fraga Malfatti, Célia

“…The rapid bio-corrosion of magnesium-based alloys, the formation of hydrogen gas and, consequently, the premature loss of biomechanical functions hinder their…”
Get full text

Sodium niobates and protonic niobates nanowires obtained from hydrothermal synthesis: Electrochemical behavior in aqueous electrolyte by Gonçalves dos Santos Júnior, Adilar, Marasca Antonini, Leonardo, Pacheco Sampaio, Edna Jerusa, Helgueira de Andrade, Antonio Marcos, Aguzzoli, Cesar, de Fraga Malfatti, Célia

“…Niobium-based oxides can be used in several applications due to a diverse set of properties. In this work, Na2Nb2O6.H2O sodium niobate nanowires were obtained…”
Get full text

Nitrogen-doped TiO2 nanotubes obtained by anodizing for photodegradation of glycerol by Kerstner Baldin, Estela, Marasca Antonini, Leonardo, De León, María A, Bussi, Juan A, de Fraga Malfatti, Célia

“…Titanium dioxide (TiO 2 ) nanotubes were obtained by the anodization process, applying a potential of 30 V for 2 h in an electrolyte composed of NH 4 F, H 2 O…”
Get full text

Microstructural Evolution and Electrochemical Behavior of Solution Treated, Hot Rolled and Aged MgDyZnZr Alloy by de Freitas, Bruno Xavier, Antonini, Leonardo A., Cury, Paula L. C. T., da Silva, Viviane L. F., Chaia, Nabil, Tomachuk, Célia R., Mathieu, Stéphane, Coelho, Gilberto C., dos Santos, Claudinei, Nunes, Carlos A.

“…In order to develop a potential route to fabricate plates and clips for orthopedic applications, a Mg–3.4Dy–0.2Zn–0.4Zr (wt.%) alloy was produced and analyzed…”
Get full text

A Tribological and Electrochemical Study of Protic Ionic Liquid and Bentonite Particles Used as Lubricating Additives in Water-Based Lubricants by de Castro, Victor Velho, dos Santos, Leonardo Moreira, Antonini, Leonardo Marasca, Schroeder, Roberto Moreira, Mattedi, Silvana, Souza, Klester S., Pereira, Marcelo Barbalho, de Lima Lessa, Cleber Rodrigo, Einloft, Sandra, dos Santos, Carlos Alexandre, de Fraga Malfatti, Célia

“…The objective of this work is to evaluate the wear and corrosion behaviours of different formulations of water-based lubricants containing protic ionic liquid…”
Get full text

A New Ternary Alloy Ti26Zr24Nb for Biomedical Application: Behavior in Corrosion, Wear, and Tribocorrosion by da Silva, Fabiana Lopes, Antonini, Leonardo Marasca, Vega, Maria Rita Ortega, Aguzzoli, Cesar, de Fraga Malfatti, Célia

“…Titanium (Ti)-based alloys with only β-phase have arisen the interest of academics and industrials for bone implants due to their mechanical properties close…”
Get full text

Osteogenic differentiation of bone marrow-derived mesenchymal stem cells on anodized niobium surface by Antonini, Leonardo Marasca, Menezes, Tiago Lemos, dos Santos, Adilar Gonçalves, Takimi, Antonio Shigueaki, Villarinho, Denis Jardim, dos Santos, Bruno Paiva, Camassola, Melissa, Marcuzzo, Jossano Saldanha, de Fraga Malfatti, Célia

“…Currently, titanium and its alloys are the most used materials for biomedical applications. However, because of the high costs of these metals, new materials,…”
Get full text

Photoactivity of nanostructured porous Nb2O5: Effect of Pt, Ta, Cu, and Ti impregnation by Antonini, Leonardo Marasca, Adamski, Janice, Bernardi, Fabiano, Aguzzoli, Cesar, Hübler, Roberto, Fraga Malfatti, Célia

“…In the present work, we report the obtaining of nanostructured porous Nb2O5 by anodizing process, with Pt, Ta, Cu, or Ti impregnation, and by magnetron…”
Get full text

TEOS thin films obtained by plasma polymerization on Ti6Al4V alloys: Influence of the deposition pressure on surface properties and cellular response by Pereira, Mireli, Baldin, Estela Kerstner, Antonini, Leonardo Marasca, Bernardi, Fabiano, Oliveira, Luiza, Maurmann, Natasha, Pranke, Patricia, Pereira, Marcelo Barbalho, Malfatti, Célia de Fraga

“…•Nanometric Si-based films were obtained by argon plasma polymerization.•Nanometer film was formed predominantly by Si-O and organosilane bonds.•Films…”
Get full text

Oxide Formation on NiTi Surface: Influence of the Heat Treatment Time to Achieve the Shape Memory by Hansen, Alana Witt, Beltrami, Lilian Vanessa Rossa, Antonini, Leonardo Marasca, Villarinho, Denis Jardim, Neves, Julio Cesar Klein das, Marino, Cláudia Eliana Bruno, Malfatti, Célia de Fraga

“…Several studies regarding superficial treatments of Nitinol (NiTi) shape-memory have been developed aiming to the improve corrosion resistance and to block the…”
Get full text

The Electrochemical Behavior of the NiTi Alloy in Different Simulated Body Fluids by Hansen, Alana Witt, Führ, Luciane Taís, Antonini, Leonardo Marasca, Villarinho, Denis Jardim, Marino, Cláudia Eliana Bruno, Malfatti, Célia de Fraga

“…In order to improve the NiTi alloy biocompatibility, surface treatments become very important. Nevertheless, researchers use different solutions to simulate…”
Get full text

Ionic liquids (IL) corrosion on A285 carbon steel by Dos Santos, Rogério F., Falcade, Tiago, Antonini, Leonardo M., Ortega-V., María R., Mattedi, Silvana, Iglesias, Miguel, Malfatti, Célia F.

“…In this work, corrosion caused by different ionic liquids on Grade A - A285 carbon steel plates at room temperature (25°C) is studied. Ionic liquids were…”
Get full text

Human Embryonic Stem Cell-Derived Mesenchymal Progenitor (hESCs-MP) Growth on Nanostructured Ti6Al4V Surfaces by Antonini, Leonardo Marasca, Santos Junior, Adilar Gonçalves dos, Reilly, Gwendolen, Malfatti, Célia de Fraga

“…Nanotexturing processes that focus on enhancing the bone-implant contact, such as electropolishing, have been proposed. The aim of this work was to evaluate…”
Get full text

Corrosión de líquidos iónicos (LI) sobre acero al carbón A285 by Dos Santos, Rogério F., Falcade, Tiago, Antonini, Leonardo M., Ortega V., Maria R., Mattedi, Silvana, Iglesias, Miguel, Malfatti, Célia F.

“…En el presente trabajo, se llevó a cabo un estudio de corrosión causada por distintos líquidos iónicos sobre placas de acero al carbón A285 grado A, a…”
Get full text

Water-based lubricant containing protic ionic liquids and talc lubricant particles: Wear and corrosion analysis by de Castro, Victor Velho, dos Santos, Leonardo Moreira, Antonini, Leonardo Marasca, Schroeder, Roberto Moreira, Mattedi, Silvana, Souza, Klester S., Pereira, Marcelo Barbalho, Einloft, Sandra, dos Santos, Carlos Alexandre, de Fraga Malfatti, Célia

“…Water-based lubricants have been used in different industrial applications in recent years. However, studies evaluating the tribological and electrochemical…”
Get full text

Highly ordered nanotubular niobium oxide obtained by self-organizing anodization: A study of capacitive behavior by Pacheco Sampaio, Edna Jerusa, Antonini, Leonardo Marasca, dos Santos Júnior, Adilar Gonçalves, de Andrade, Antonio Marcos Helgueira, de Fraga Malfatti, Célia, Hubler, Roberto, Aguzzoli, Cesar

“…Transition metal oxide nanotubes such as niobium have attracted wide scientific attention due to their unique properties such as high ionic mobility and large…”
Get full text

Cold-Plasma-Sterilized Nanostructured Ti6Al4V: Effect on Nanostructured Surface Morphology and Osteogenic Differentiation of Bone-Marrow-Derived Mesenchymal Stem Cells by Antonini, Leonardo Marasca, Takimi, Antonio Shigueaki, Amaral, Vanessa Pinheiro, Camassola, Melissa, de Fraga Malfatti, Célia

“…The cold plasma sterilization is an alternative sterilization process that does not modify the morphological properties of nanostructured surfaces of titanium…”
Get full text

Effect of sterilization processes on nanostructured Ti6Al4V surfaces obtained by electropolishing by Antonini, Leonardo Marasca, Malfatti, Célia de Fraga, Reilly, Gwendolen C., Owen, Robert, Takimi, Antonio Shigueaki

“…Electrochemical treatments, such as electropolishing on titanium alloys, are used to promote the formation of nanostructured surfaces, which can contribute to…”
Get full text

Photoactivity of nanostructured porous Nb 2 O 5 : Effect of Pt, Ta, Cu, and Ti impregnation by Antonini, Leonardo Marasca, Adamski, Janice, Bernardi, Fabiano, Aguzzoli, Cesar, Hübler, Roberto, de Fraga Malfatti, Célia

“…In the present work, we report the obtaining of nanostructured porous Nb 2 O 5 by anodizing process, with Pt, Ta, Cu, or Ti impregnation, and by magnetron…”
Get full text

Effect of Ti6Al4V surface morphology on the osteogenic differentiation of human embryonic stem cells by Antonini, Leonardo Marasca, Kothe, Vinícius, Reilly, Gwendolen C., Owen, Robert, Marcuzzo, Jossano Saldanha, Malfatti, Célia de Fraga

“…Ti6Al4V alloys usually need to undergo some kind of surface treatment to enable good bone growth and implant integration. In this work, three treatments that…”
Get full text