Recent Papers - Machine Learning Special Issue
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Acrylic latex-based nanocomposites have been prepared with three different carbon nanomaterials (nanotubes and graphene-like structures). Due to the unique interaction between the components, resulting materials present noticeable multifunctionality. The electrical, mechanical, magnetic and chemical properties can be modulated according the type and amount of filler, creating several different materials that can be chosen for specific applications. Details are presented in the Article Multifunctional Nanocomposites between Different Carbon Nanostructures and Styrene Acrylic Latex by Carolina F. Matos, Fernando Galembeck and Aldo J. G. Zarbin on page 1396.
Carolina F. Matos; Fernando Galembeck; Aldo J. G. Zarbin
How to cite this articleAcrylic latex-based nanocomposites have been prepared with three different carbon nanomaterials (nanotubes and graphene-like structures). Due to the unique interaction between the components, resulting materials present noticeable multifunctionality. The electrical, mechanical, magnetic and chemical properties can be modulated according the type and amount of filler, creating several different materials that can be chosen for specific applications. Details are presented in the Article Multifunctional Nanocomposites between Different Carbon Nanostructures and Styrene Acrylic Latex by Carolina F. Matos, Fernando Galembeck and Aldo J. G. Zarbin on page 1396.
Marília O. F. Goulart; Rossimiriam P. de Freitas
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Aline L. N. Guarieiro; Arantzazu Eiguren-Fernandez; Gisele O. da Rocha; Jailson B. de Andrade
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Fractal-like dimension and morphology of ultrafine particles emitted by a diesel engine run with B4, B50, and B100 are evaluated.
This paper is part of the PubliSBQ Special Issue in honor of the late Prof Angelo da Cunha Pinto.
Ming-Liang Chang; Yong He; Jing Zhou; Shao-Yong Li
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Inherently chiral calix[4]arenes can catalyze Henry reaction between aromatic aldehydes and nitromethane in excellent yields but poor enantioselectivities.
Buana C. de Almeida; Bruno Q. Araújo; Elcio D. S. Barros; Sâmya D. L. Freitas; Dayany S. A. Maciel; Ari J. S. Ferreira; Rafael C. Guadagnin; Gerardo M. Vieira Júnior; Joao H. G. Lago; Mariana H. Chaves
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Sixteen dammarane-type triterpenoids, including thirteen new, were identified from carnauba (Copernicia prunifera) wax (types 1 and 4).
Marcela T. Nakamura; Eliana H. Endo; Joao Paulo B. de Sousa; Daniel R. Callejon; Tânia Ueda-Nakamura; Benedito P. Dias Filho; Osvaldo de Freitas; Celso V. Nakamura; Norberto P. Lopes
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Copalic acid activity against dermatophytes Trichophyton rubrum, Trichophyton mentagrophytes and Microsporum gypseum.
This paper is part of the PubliSBQ Special Issue in honor of the late Prof Angelo da Cunha Pinto.
Lincoln Tolomelli e Tolomelli; Luiz G. Barreta; Pedro T. Lacava; Dermeval Carinhana Jr.
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Biodiesel/diesel blends flames are investigated using LII. The results showed a decrease of soot production as the amount of biodiesel was increased.
Felipe Hilário; Vanessa M. Chapla; Angela R. Araujo; Paulo T. Sano; Taís M. Bauab; Lourdes C. dos Santos
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Metabolite produced by Fusarium fujikuroi isolated from the capitulae of Paepalanthus chiquitensis (Eriocaulaceae). Photo of P. chiquitensis was taken by Marcelo T. L. de Oliveira.
Carolina F. Matos; Fernando Galembeck; Aldo J. G. Zarbin
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Multifunctional nanocomposites between carbon nanostructures and acrylic latex were successfully prepared, with improved and tunable properties compared to the neat polymer.
Maria Beatriz A. Afonso; Lucas G. Gonçalves; Patrícia Borim; José Luiz S. Sá; Beatriz E. Goi; Valdemiro P. Carvalho-Jr.
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Grubbs 1st and 2nd generation catalyst were evaluated as catalyst in atom-transfer radical polymerization (ATRP) of methyl methacrylate (MMA) and their yet unknown mechanism for ATRP was investigated.
Ponnusamy Selvakumar; Ramaswamy Narayanasamy; Nanjan Nanjundan; Krishnaswamy Velmurugan; Raju Nandhakumar
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Ruthenium(II) complexes containing S-allyldithiocarbazate derivatives, potentially active towards in vitro biomolecular interactions and bio-catalytic transformations such as catechol oxidation and phosphate hydrolysis.
Carla R. Matte; Carolina Bordinhao; Jakeline K. Poppe; Edilson V. Benvenutti; Tania M. H. Costa; Rafael C. Rodrigues; Plinho F. Hertz; Marco A. Z. Ayub
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Immobead 150 possess interesting features to be used as a support for immobilization of lipases.
Siddhartha O. K. Giese; Thiago A. da Silva; David L. Hughes; André Luis Rüdiger; Eduardo L. de Sá; Sônia F. Zawadzki; Jaísa F. Soares; Giovana G. Nunes
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Complexes [Ti3(OiPr)11][FeCl4] and [Ti3(O)(Cl)(ONep)9] were employed as initiators for the polymerization of ε-caprolactone (ε-CL). The better polymerization reactivity of [Ti3(O)(Cl)(ONep)9] seems to be associated with the maintenance of its polynuclear structure in the reaction mixture.
Marcus Vinicius de Liz; Bianca do Amaral; Sandra Stets; Noemi Nagata; Patricio Peralta-Zamora
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Fluorescence-based HPLC method for quantification of estrogens (17β-estradiol and 17α-ethinylestradiol) in both influent and effluent wastewater samples.
Igor Pereira; Thays C. de Carvalho; Wanderson Romao; Paulo R. Filgueiras; Bruno G. Laviola; Clenilson M. Rodrigues; Patrícia V. Abdelnur; Boniek G. Vaz
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A recent ambient ionization mass spectrometry technique known as leaf spray (LS-MS) is a simple and fast method for screening of plant samples. In this work, toxic and non-toxic Jatropha curcas leaves were differentiated by LS-MS.
Érica L. Santos; Juliana Jo; Francisco A. Marques; Ana Maria G. A. Tozzi; Ana Lúcia T. G. Ruiz; Beatriz Helena L. N. S. Maia
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Dibenzoylmethane derivatives with a substituent on C-8 are extremely rare in nature. These compounds can potentially be used as biomarkers of closely related genera. Two compounds showed strong activity against human cancer cell lines.
Zhiqun Xu; Qiao Wu; Yunjian Duan; Meixia Yang; Minrui Ou; Xiaoping Xu
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A novel, rapid, and easy method for quantification of BPA via diazo coupling reaction and its applications in the actual food samples.
Ibrahim Ibrahim; Michel Meyer; Hisasi Takenouti; Bernard Tribollet
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Cathodic protection potential in presence of a stray AC voltage for steel pipe buried in a mildly corrosive soil provided that AC corrosion does not induce any change of soil chemistry.
Waldenice A. Morais; Benício de Barros Neto; Isabella M. F. Cavalcanti; Francisco H. Xavier Junior; Nereide S. Santos-Magalhaes; Maria Aparecida M. Maciel
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Coencapsulation of t-DCTN and t-DCTN:HP-β-CD into PCL and PLGA microspheres were developed using factorial design. Oral formulations of PLGA microparticles containing t-DCTN and/or t-DCTN:HP-β-CD were obtained to be applied in in vivo studies.
This paper is part of the PubliSBQ Special Issue in honor of the late Prof Angelo da Cunha Pinto.
Jussara V. Roque; Luiz A. S. Dias; Reinaldo F. Teófilo
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Determination of phorbol esters of Jatropha curcas L. using NIR and UV spectroscopies employing PLS regression and variable selection.
Catarina A. Oliveira; Marcos M. Gouvêa; Flávio H. S. A. Ribeiro; Eduardo Ricci‑Júnior; Flávia F. C. Marques
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The spectrofluorimetric determination of 8-methoxypsoralen was applied to assessing the quality of medicines produced by compounding pharmacies.
Caroline O. da Rocha; Joao Flávio S. Petruci; Arnaldo A. Cardoso
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Methylene Violet 3 RAX dye as a new reagent for the determination of nitrite in cured meats and vegetables.
Victor H. J. M. dos Santos; Paulo G. Celso; Artur L. G. Rocha; Samuel Giovanaz; Carolina Z. Guerra; Jessica P. Pires; Pâmela M. Engelmann; Luiz F. Rodrigues
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The chemometric tool was applied to the physicochemical, volatiles and stable isotope data to perform the exploratory analysis and classification of sparkling wines samples.
Raimundo R. de Almeida; Juan Gallo; Aiêrta C. C. da Silva; Ana K. O. da Silva; Otilia D. L. Pessoa; Tamara G. Araújo; Luzia K. A. M. Leal; Pierre B. A. Fechine; Manuel Bañobre-López; Nágila M. P. S. Ricardo
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Magnetic solid lipid nanoparticles (MSLNs) for application in magnetic hyperthermia and controlled delivery of oncocalyxone-A.
Francisca S. O. Ramos; Ramon K. S. Almeida; Cícero A. Lopes Júnior; Marco Aurélio Z. Arruda; Heloise O. Pastore
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Microwave-assisted acid decomposition using closed vessels was applied to aluminosilicates in order to quantify Na and Al, reducing the time consumed for samples preparation step. This procedure avoided analytes losses and contamination.
Cailian Ma; Guanghua Dong; Xia Liu; Jiangang Chen
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Polyvinyl alcohol (PVA) concentration has a significant effect on the structure of catalysts and dispersion of their active phase. Therefore, the catalyst prepared with 15 wt.% PVA, exhibits high performance and good thermal stability for Fischer-Tropsch synthesis.
Sara L. S. Gomes; Gardenia C. G. Militao; Arinice M. Costa; Cláudia O. Pessoa; Letícia V. Costa-Lotufo; Edézio F. Cunha-Junior; Eduardo C. Torres-Santos; Paulo R. R. Costa; Alcides J. M. da Silva
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Suzuki-Miyaura cross coupling reaction between 2-hydroxy-3-iodonaphthalene-1,4-dione and a series of arylboronic acids/esters followed by OH-protection as the corresponding N,N-diethyl carbamates is reported. The synthesized compounds were evaluated regarding their antineoplastic and antileishmanial activities furnishing promising results.
This paper is part of the PubliSBQ Special Issue in honor of the late Prof Angelo da Cunha Pinto.
Online version ISSN 1678-4790 Printed version ISSN 0103-5053
Journal of the Brazilian Chemical Society
JBCS Editorial and Publishing Office
University of Campinas - UNICAMP
13083-970 Campinas-SP, Brazil
Free access