• Self-healing ability based on hydrogen bonds in organic coatings for corrosion protection of AA1200 

  Nardeli, Jéssica V. ; Fugivara, Cecílio S. ; Taryba, Maryna; Montemor, M. F.; Benedetti, Assis V. (Corrosion Science, 2020) [Artigo]

  Biobased polyurethane coatings derived from vegetable oils, with 2 different compositions, were prepared and applied on the AA1200 aluminum alloy to confer corrosion protection. The influence of the ratio between the ...

• Synthesis and characterization of magnetic cross-linked enzyme aggregate and its evaluation of the alternating magnetic field (AMF) effects in the catalytic activity 

  Lucena, Guilherme N. ; Santos, Caio C. dos ; Pinto, Gabriel C. ; Piazza, Rodolfo D. ; Guedes, Wesley N. ; Jafelicci Júnior, Miguel ; de Paula, Ariela V. ; Marques, Rodrigo Fernando C. (Journal of Magnetism and Magnetic Materials, 2020) [Artigo]

  A magnetic cross-linked enzyme aggregate (MCLEA) of cellulases and a non-magnetic analogue (CLEA) were synthesized and further investigated. The obtained MCLEA and CLEA showed a high enzyme loading efficiency of 90% and ...

• On the stability of the passive Ti-6Al-4V film of friction stir welds with stainless steel: Effect of not native metal species 

  Silva, Diego D.; Campanelli, Leonardo Contri; Bergmann, Luciano; dos Santos, Jorge F.; Hammer, Peter ; Rovere, Carlos A. Della; Aquino, José M. (Electrochimica Acta, 2020) [Artigo]

  Mechanical and microstructural characteristics of Ti-6Al-4V/stainless steel (SS) dissimilar friction stir welds have been well described in the literature; however, little is known about the electrochemical properties of ...

• Conjugation of superparamagnetic iron oxide nanoparticles and curcumin photosensitizer to assist in photodynamic therapy 

  de Santana, Willian Max O.S. ; Caetano, Bruno L. ; de Annunzio, Sarah Raquel ; Pulcinelli, Sandra H. ; Ménager, Christine; Fontana, Carla Raquel ; Santilli, Celso V. (Colloids and Surfaces B: Biointerfaces, 2020) [Artigo]

  In this work, we describe the synthesis and characterization of the SPIONP-CUR conjugate between curcumin (CUR) and superparamagnetic iron oxide nanoparticles (SPIONPs), in addition to its application in photodynamic therapy ...

• Microwave synthesis of Ti/(RuO2)0.5(IrO2)0.5 anodes: Improved electrochemical properties and stability 

  Gonzaga, Isabelle M.D.; Dória, Aline R.; Vasconcelos, Vanessa M.; Souza, Felipe M.; dos Santos, Mauro C.; Hammer, Peter ; Rodrigo, Manuel A.; Eguiluz, Katlin I.B.; Salazar-Banda, Giancarlo R. (Journal of Electroanalytical Chemistry, 2020) [Artigo]

  The efficiency of electrochemical technology in treating water contaminated by complex organic pollutants has been widely investigated. Notwithstanding, it is still necessary to develop technologies capable of producing ...

• Hydrophobic-hydrophilic balance of ZSM-5 zeolites on the two-phase ketalization of glycerol with acetone 

  Catuzo, Gabriel L. ; Santilli, Celso V. ; Martins, Leandro (Catalysis Today, 2020) [Artigo]

  Herein, ZSM-5 zeolites of several Si/Al mole ratios, and varying hydrophobicity were used as catalysts in the ketalization of glycerol. The water formed in the reaction adsorbs on acidic sites, hampering the catalytic ...

• Influence of the RuO2 layer thickness on the physical and electrochemical properties of anodes synthesized by the ionic liquid method 

  Dória, Aline R.; Silva, Ronaldo S.; Oliveira Júnior, Paulo H.; dos Santos, Euler A.; Mattedi, Silvana; Hammer, Peter ; Salazar-Banda, Giancarlo R.; Eguiluz, Katlin I.B. (Electrochimica Acta, 2020) [Artigo]

  The use of ionic liquids as solvents to prepare mixed metal oxide (MMO) anodes has proven to be a very promising alternative synthesis route. However, little attention has been dedicated to assessing the effect of the ...

• Hydroxyapatite and β-TCP modified PMMA-TiO2 and PMMA-ZrO2 coatings for bioactive corrosion protection of Ti6Al4V implants 

  Harb, Samarah V. ; Bassous, Nicole J.; de Souza, Thiago A.C. ; Trentin, Andressa ; Pulcinelli, Sandra H. ; Santilli, Celso V. ; Webster, Thomas J.; Lobo, Anderson O.; Hammer, Peter (Materials Science and Engineering C, 2020) [Artigo]

  Organic-inorganic hybrid coatings deposited on different types of metallic alloys have shown outstanding anticorrosive performance. The incorporation of osteoconductive additives such as hydroxyapatite (HA) and β-tricalcium ...

• Sn-containing electrocatalysts with a reduced amount of palladium for alkaline direct ethanol fuel cell applications 

  Pinheiro, Victor S.; Souza, Felipe M.; Gentil, Tuani C.; Nascimento, Aline N.; Böhnstedt, Paula; Parreira, Luanna S.; Paz, Edson C.; Hammer, Peter ; Sairre, Mirela I.; Batista, Bruno L. et al. (Renewable Energy, 2020) [Artigo]

  In this work electrocatalysts based on Pd and Sn nanoparticles supported on Vulcan XC-72 carbon black with a reduced amount of Pd were prepared. We evaluated its electrocatalytic activity for ethanol oxidation reaction ...

• Introducing mesoscopic charge transfer rates into molecular electronics 

  Santos, Adriano ; Tefashe, Ushula M.; McCreery, Richard L.; Bueno, Paulo R. (Physical Chemistry Chemical Physics, 2020) [Artigo]

  It has been demonstrated that mesoscopic rates operate in nanoscale electrochemical systems and, from a fundamental point of view, are able to establish a bridge between electrochemical and molecular electronic concepts. ...

• Liquid crystals as pore template for sulfated zirconia 

  Moris, Carlos Henrique A.A. ; Alves-Rosa, Marinalva A. ; Freitas, Fernanda G. ; Martins, Leandro ; Santilli, Celso V. ; Pulcinelli, Sandra H. (Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020) [Artigo]

  Porous sulfated zirconia was prepared using a sol-gel process associated with liquid crystal templates (LCTs). Evaluation was made of the effects of the Zr4+:SO4 2− molar ratio and aging time on the formation and stability ...

• Effect of the Outer Layer of Al Coatings Deposited by Cold Gas Spray on the Microstructure, Mechanical Properties and Corrosion Resistance of the AA 7075-T6 Aluminum Alloy 

  da Silva, F. S. ; Cinca, N.; Dosta, S.; Cano, I. G.; Guilemany, J. M.; Benedetti, A. V. (Journal of Thermal Spray Technology, 2020) [Artigo]

  The corrosion of AA 7075-T6 aluminum alloy is a critical issue for many industries. In this study, aluminum coatings were deposited onto AA 7075-T6 by cold gas spray and the effect of the porous outer layer on different ...

• Nonvolatile memories 

  Rocha, Leandro S.R. ; Simões, Alexandre Z. ; Cortés, Johan A. ; Ramirez, Miguel A. ; Moura, Francisco; Foschini, Cesar R. ; Tararam, Ronald; Cilense, Mario ; Longo, Elson; Paiva-Santos, Carlos O. (Magnetic, Ferroelectric, and Multiferroic Metal Oxides, 2018) [Capítulo de livro]

  The need for faster, smaller, cheaper and energy-efficient electronic devices has been growing continuously in the last decade, with the conventional data storage technologies (i.e., static random access memory and dynamic ...

• The nanoscopic principles of capacitive ion sensing interfaces 

  Bueno, Paulo R. ; Hein, Robert; Santos, Adriano ; Davis, Jason J. (Physical Chemistry Chemical Physics, 2020) [Artigo]

  Herein we discuss the operational principles of molecular interfaces that specifically recruit ions from an electrolyte solution and report this in a reagentless capacitive manner. At low ionic occupancy the response of ...

• PMMA-silica nanocomposite coating: Effective corrosion protection and biocompatibility for a Ti6Al4V alloy 

  Harb, Samarah Vargas ; Uvida, Mayara Carla ; Trentin, Andressa ; Oliveira Lobo, Anderson; Webster, Thomas Jay; Pulcinelli, Sandra Helena ; Santilli, Celso Valentim ; Hammer, Peter (Materials Science and Engineering C, 2020) [Artigo]

  Ti6Al4V is the mostly applied metallic alloy for orthopedic and dental implants, however, its lack of osseointegration and poor long-term corrosion resistance often leads to a secondary surgical intervention, recovery delay ...

• Fenton-like degradation of methylene blue using Mg/Fe and MnMg/Fe layered double hydroxides as reusable catalysts 

  Gonçalves, Rosembergue Gabriel Lima ; Mendes, Hana Moreira; Bastos, Sibele Lima; D'Agostino, Lídia Cristina ; Tronto, Jairo; Pulcinelli, Sandra Helena ; Santilli, Celso Valentim ; Neto, Jonas Leal (Applied Clay Science, 2020) [Artigo]

  In this work, the Layered Double Hydroxide (LDH) containing magnesium (Mg) and iron (Fe) was modified with Mn to investigate the effect of the addition from the structural and catalytic point of view. These materials were ...

• A new synthetic smectite-like vanadosilicate containing V3+ in the framework 

  Chaves, Thiago F. ; Possato, Luiz G. ; Santilli, Celso V. ; Pérez-Pariente, Joaquín (Applied Clay Science, 2020) [Artigo]

  A new synthetic smectite-like vanadosilicate, named Vanadosilicate Araraquara Madrid (VAM), containing V3+ was prepared by a hydrothermal method and its behavior as catalyst for methanol oxidation was investigated by X-ray ...

• Serological point-of-care and label-free capacitive diagnosis of dengue virus infection 

  Cecchetto, Juliana ; Santos, Adriano ; Mondini, Adriano ; Cilli, Eduardo M. ; Bueno, Paulo R. (Biosensors and Bioelectronics, 2020) [Artigo]

  Dengue non-structural protein 1 (NS1 DENV) is considered a biomarker for dengue fever in an early stage. A sensitive and rapid assay for distinguishing positive from negative dengue infection samples is imperative for ...

• A comparative study on PMMA-TiO2 and PMMA-ZrO2 protective coatings 

  Harb, Samarah V. ; Trentin, Andressa ; Uvida, Mayara C. ; Magnani, Marina ; Pulcinelli, Sandra H. ; Santilli, Celso V. ; Hammer, Peter (Progress in Organic Coatings, 2020) [Artigo]

  The covalent conjugation between the phases of organic-inorganic nanocomposites and the careful tuning of the proportion of the colloidal precursors are essential to yield homogeneous, cross-linked and dense coatings that ...

• Preparation of hydrophobic MFI zeolites containing hierarchical micro-mesopores using seeds functionalized with octyltriethoxysilane 

  Novak, Sara ; Chaves, Thiago Faheina ; Martins, Leandro ; Santilli, Celso Valentim (Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020) [Artigo]

  In this work, we report the synthesis of hydrophobic MFI zeolites presenting a mesopore size distribution and high specific external area (∼288 m2 g−1), employing surface functionalization with octyltriethoxysilane (OTEOS). ...

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