RSS 1.0Artigos - Química - FC
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Spectroscopic characterization and thermal behavior of baru nut and macaw palm vegetable oils and their epoxidized derivatives
Alarcon, Rafael T.
; Gaglieri, Caroline ; ; ; Bannach, Gilbert (Industrial Crops and Products, 2020) [Artigo]
The ability to produce new and renewable, epoxidized Brazilian vegetable oils from baru nut (Dipteryx alata Vogel) and macaw palm (Acrocomia aculeata) oil, using a fast and clean heterogeneous catalytic method, was ... -
Development of novel Ti-Mo-Mn alloys for biomedical applications
Lourenço, Mariana Luna; Cardoso, Giovana Collombaro ; Sousa, Karolyne dos Santos Jorge ; Donato, Tatiani Ayako Goto ; Pontes, Fenelon Martinho Lima ; Grandini, Carlos Roberto (Scientific Reports, 2020) [Artigo]
Due to excellent biocompatibility and corrosion resistance, the application of titanium alloys in orthopedic and dental implants has been increasing since the 1970s. However, the elasticity of these alloys as measured by ... -
Effect of the milling process on the thermal behavior and crystallinity of buckwheat starch
; Gaglieri, Caroline; ; Ferreira, Laura Teófilo ; ; Bannach, Gilbert (Journal of Thermal Analysis and Calorimetry, 2020) [Artigo]
Buckwheat starch is an alternative source to supply the high global demand for starch. The properties of starch can be modified through chemical and physical methods; one of them is the milling process, which can be ... -
Microwave-Assisted Syntheses of Vegetable Oil-Based Monomer: A Cleaner, Faster, and More Energy Efficient Route
Alarcon, Rafael T.; Gaglieri, Caroline ; de Souza, Otávio A. ; Rinaldo, Daniel ; Bannach, Gilbert (Journal of Polymers and the Environment, 2020) [Artigo]
Modification of vegetable oil into monomers and polymers is essential nowadays, considering petroleum depletion. The reaction of vegetable oils with maleic anhydride is widely known, and the final product can be obtained ... -
Lanthanum(III) and neodymium(III) complexes with anti-inflammatory drug sulindac: Synthesis, characterization, thermal investigation using coupled techniques TG-FTIR, and in vitro biological studies
Guerra, Renan B.; de Campos Fraga-Silva, Thais Fernanda ; Aguiar, Julia ; Oshiro, Paula B. ; Holanda, Bruno B.C. ; Venturini, James ; Bannach, Gilbert (Inorganica Chimica Acta, 2020) [Artigo]
New lanthanum(III) and neodymium(III) complexes with the anti-inflammatory drug sulindac (Sul) were synthesized and characterized, and their biological activity was evaluated in vitro. The general formula [Ln(Sul)3]∙nH2O ... -
Novel aminoquinoline-based solvatochromic fluorescence probe: Interaction with albumin, lysozyme and characterization of amyloid fibrils
Pastrello, Bruna; dos Santos, Giovanny Carvalho ; Silva-Filho, Luiz Carlos da ; de Souza, Aguinaldo Robinson ; ; Ximenes, Valdecir Farias (Dyes and Pigments, 2020) [Artigo]
A novel aminoquinoline derivative (AQ) was synthesized and applied as a solvatochromic fluorescent probe to study proteins and their alterations. AQ is not fluorescent in aqueous solution but has its fluorescence quantum ... -
Novel solid-state compounds of heavy rare-earth (III) picolinates. A pyrolytic study using: TG-DSC-IR, HSM-MS and GC-MS
Nascimento, A. L.C.S.; ; ; Ekawa, B. ; Fernandes, R. P. ; Carvalho, A. C.S. ; Ionashiro, M. ; Caires, F. J. (Journal of Analytical and Applied Pyrolysis, 2019) [Artigo]
Heavy trivalent lanthanides and yttrium picolinates were synthesized by complexation of basic rare-earth metal carbonates with an aqueous solution of picolinic acid. The novel compounds were obtained with the general formula ... -
METHODOLOGICAL PLURALISM AND THE DEVELOPMENT OF SCIENTIFIC ARGUMENTATION IN PHYSICS TEACHING
Martins Galvao, Idmaura Calderaro; Castro Monteiro, Isabel Cristina de ; Alvarenga Monteiro, Marco Aurelio (Gondola-ensenanza Y Aprendizaje De Las Ciencias, 2020) [Artigo]
We studied the use of methodological pluralism in physics classes for the improvement of secondary school students' scientific argumentation, in the heartland of Sao Paulo state. The research was carried out during a ... -
Application of MQL technique using TiO2 nanoparticles compared to MQL simultaneous to the grinding wheel cleaning jet
Lopes, Jose Claudio; Garcia, Mateus Vinicius ; Volpato, Roberta Silveira ; Mello, Hamilton Jose de ; Fonteque Ribeiro, Fernando Sabino ; Angelo Sanchez, Luiz Eduardo de ; Rocha, Kleper de Oliveira ; Neto, Luiz Dare ; ; Bianchi, Eduardo Carlos (International Journal Of Advanced Manufacturing Technology, 2020) [Artigo]
The minimum quantity lubrication + nanofluid technique has proven to be feasible in machining processes, since it has shown potential for improvements through its lubri-refrigeration and heat removal characteristics, beyond ... -
Solvent-Free Synthesis Using Nb2O5 and a Theoretical-Experimental Study of Solvent Effect in New Rhodamine Dyes
; Riehl, Luiza Olbera; Santos, Giovanny Carvalho dos ; Roldao, Juan Carlos ; Silva-Filho, Luiz Carlos da (Chemistryselect, 2020) [Artigo]
Rhodamine dyes have several applications based on properties, such as high molar absorptivity, high fluorescence quantum yield, photostability, absorption and emission wavelengths in the visible region. In this paper, we ... -
Comparative study of biological activities and chemical constitution of Agaricus subrufescens and Pleurotus ostreatus mushrooms
; Mannochio Russo, H.; ; Cuncha Zied, D. ; Silva Bolzani, V da ; Farias Ximenes, V ; (Planta Medica, 2019) [Resumo]
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Experimental (electrochemistry) and theoretical (ab initio and density functional theory) studies of hydrogen and sulfide adsorption on palladium (100) surface.
(Quimica Nova, 2001) [Artigo]The adsorption of H And S2- species on Pd (100) has been studied with ab initio, density-functional calculations and electrochemical methods. A cluster of five Pd atoms with a frozen geometry described the surface. The ... -
Methyl divanillate: Redox properties and binding affinity with albumin of an antioxidant and potential NADPH oxidase inhibitor
De Vasconcelos, Debora Naliati; ; ; ; Ferreira Boza, Izabelle Amorim ; De Souza, Aguinaldo Robinson ; ; Ximenes, Valdecir Farias (RSC Advances, 2019) [Artigo]
Vanillic acid is a widely used food additive (flavouring agent, JECFA number: 959) with many reported beneficial biological effects. The same is true for its ester derivative (methyl vanillate, JECFA number: 159). Based ... -
Polymorphism of gemfibrozil: Investigation by thermal and spectroscopic methods
Holanda, Bruno B.C.; Bannach, Gilbert ; ; ; (Thermochimica Acta, 2019) [Artigo]
The knowledge of polymorphism of active pharmaceutical ingredient is relevant in the pharmaceutical field. In this work, a multidisciplinary approach involving differential scanning calorimetry, polarized light thermal ... -
Synthesis of luminescent polymers in the UV light region from dimethacrylate monomer using novel quinoline dyes
Alarcon, Rafael Turra; dos Santos, Giovanny Carvalho ; de Oliveira, Arthur Rossi ; da Silva-Filho, Luiz Carlos ; Bannach, Gilbert (Journal of Applied Polymer Science, 2019) [Artigo]
This study aims at thermal and morphological features, as well as the degree of conversion these luminescent polymers obtained using a dimethacrylate monomer, and quinoline dyes as photoinitiator. The photoinitiators provide ... -
Correction to: Synthesis and characterization of a biopolymer of glycerol and macadamia oil (Journal of Thermal Analysis and Calorimetry, (2019), 137, 1, (161-170)
Pires, Osmar Antonio Baldo; Alarcon, Rafael Turra ; Gaglieri, Caroline ; da Silva-Filho, Luiz Carlos ; Bannach, Gilbert (Journal of Thermal Analysis and Calorimetry, 2019) [Errata]
In the original publication of the article, the Figures 6, 7, and 8 are in disagreement with their figure captions. Moreover, in the result and discussion section text the Fig 6 is called as Fig S2 (vibrational spectroscopy ... -
TiO 2 -catalyzed photodegradation of aromatic compounds: relevance of susceptibility to oxidation and electrophilic attack by hydroxyl radical
Spazzini, Fabiola Cristina Ricci; Ximenes, Thomaz Pol ; Ximenes, Valdecir Farias (Journal of Nanoparticle Research, 2018) [Artigo]
The application of nanostructured titanium dioxide (TiO 2 ) as catalyst for the photodegradation of drugs and dyes is well established. We aimed to evaluate the importance of the reactivity of aromatic compounds submitted ... -
Synthesis and characterization of a biopolymer of glycerol and macadamia oil
Pires, Osmar Antonio Baldo; Alarcon, Rafael Turra ; Gaglieri, Caroline ; da Silva-Filho, Luiz Carlos ; Bannach, Gilbert (Journal of Thermal Analysis and Calorimetry, 2019) [Artigo]
The main objective of this work was the synthesis of a polymer using a vegetable and renewable feedstock and following the green chemistry principles. The use of macadamia oil (extracted from Macadamia integrifolia nuts) ... -
Thermal studies, degradation kinetic, equilibrium solubility, DFT, MIR, and XRPD analyses of a new cocrystal of gemfibrozil and isonicotinamide
Holanda, Bruno B. C.; Alarcon, Rafael T. ; Gaglieri, Caroline ; de Souza, Aguinaldo R. ; ; ; ; Bannach, Gilbert (Journal of Thermal Analysis and Calorimetry, 2019) [Artigo]
A synthesis of a novel pharmaceutical cocrystal of the gemfibrozil (GEM) with the isonicotinamide (INCT) as coformer was carried out using the mechanochemical method of solvent drop grinding. The cocrystal formation was ... -
Interaction between 1-pyrenesulfonic acid and albumin: Moving inside the protein
Bertozo, Luiza de Carvalho; ; ; ; ; Ximenes, Valdecir Farias (Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2019) [Artigo]
Due to the high sensitivity to alterations in microenvironment polarity of macromolecules, pyrene and its derivatives have long been applied in biosciences. Human serum albumin (HSA), besides its numerous physiological ...