The Board of Directors of the Sociedade Brasileira de Química-SBQ (publisher of the Química Nova-QN) decided that from March 2016 the JBCS will adopt the full open access format in which authors are required to cover part of the publication costs for their articles. See more...
Adriana Campano Lucilha; Marcelo Rodrigues da Silva; Rômulo Augusto Ando; Luiz Henrique Dall'Antonia; Keiko Takashima
ZnO surface modification by the addition of silver was efficient in the photocatalytic decolorization of the DR23 diazo dye, due to silver's ability to inhibit recombination of charge carriers, photogenerated on the oxide surface.
Anderson S. Barbosa; Jessica A. Lisboa; Matheus A. O. Silva; Nayára B. Carvalho; Matheus M. Pereira; Alini T. Fricks; Silvana Mattedi; Álvaro S. Lima; Elton Franceschi; Cleide M. F. Soares
Lipase from Burkholderia cepacia immobilized into or onto silica support modified with protic ionic liquid and dried in pressurized media (aerogel) shows promising potential for industrial applications in the hydrolysis of vegetable oils.
Vanessa V. Torres; Gabriela Borges Cabral; Ana Carolina Gomes da Silva; Kelly Cristina Ribeiro Ferreira; Eliane D'Elia
The effect of papaya seed extracts on the corrosion of carbon steel in 1 mol L-1 HCl was examined using polarization curves, impedance measurements, and weight loss measurements.
Marta Eliane Doumer; Gilberto Abate; Iara Messerschmidt; Lívia Mari Assis; Rosane Martinazzo; Carlos Augusto Posser Silveira
The functionalization of an industrial oil shale by-product increased the cation exchange capacity of the material for use in enhancing soil properties and improving soil fertility.
Everton T. da Silva; Annelise Casellato; Sérgio de P. Machado
This work shows the theoretical study of binuclear complexes of Mn2+ ion with the 2-hydroxibenzilglycine ligand and its substituted derivatives, aiming to evaluate their possible activities as mimetic for catechol oxidase.
Jaline R. Ribeiro; Sergio Siqueira; Cleber G. Novaes; João H. Santos Neto
The assessment of water and leaf of bromeliad (Aechmea blanchetiana) showed similar behavior in almost all evaluated points.
Paloma L. da Silva; Anida M. M. Gomes; Nágila M. P. S. Ricardo; Terezinha F. Machado
Representative image of the study using the phosphorylated yam starch for the preparation of plastic films with good properties for using as mulchings and / or dressings.
Elsa M. Rodríguez Pérez; Francisco J. Toledo Marante; Josefa Caballero Hernández; Jaime Bermejo Barrera; Francisco J. Estevez Rosas
Lichens synthesize a great variety of metabolites with different structures and potential antioxidant activities. Unsurprisingly, the large pharmaceutical companies have initiated programs for the application of these metabolites in medicines using a multitude of modern biotests.
Elke M. F. Lemos; Patrícia S. O. Patrício; Marivalda M. Pereira
Nanocomposite scaffolds in the Chitosan/PVA/Bioactive glass system obtained were highly porous (> 64%), exhibiting a cellular microstructure with interconnected pores in the 50-227 µm range, and thin walls.
Xinghui Jin; Jianhua Zhou; Shijie Wang; Bingcheng Hu
A new high-energy density material (HEDM) 3,7-bis(dinitromethylene)- 2,4,6,8-tetranitro-2,4,6,8-tetraazabicyclo[3.3.0]octane was designed, and its physical and chemical properties were fully studied by density functional theory (DFT) method at B3LYP/6-31G (d,p) level.
Raphael Nagao; Hamilton Varela
The emergence of self-organized structures in chemical systems kept under far from equilibrium can be described by the coupling between nonlinear kinetics and diffusive processes.
Eliane Teixeira Sousa; Wilson A. Lopes; Jailson B. de Andrade
Schematic representation of quinones sources, their behavior, paths in the atmosphere and effects on health.
Jéssica F. Paulino; Reiner Neumann; Júlio C. Afonso
Production of high purity grade hydrogen fluoride from cryolite.
Maurício Temotheo Tavares; Marina Candido Primi; Camila Felix de Carvalho; Michelle Carneiro Polli; Roberto Parise-Filho
An alternative and playful practical class integrating experimental and in silico approaches for medicinal chemistry learning process.
Aluir Purceno; Matheus Duarte; Luiz Cláudio de Melo Costa; Simone Pires Bueno; Guilherme Gomes; Rochel Montero Lago
In this work, chemists with experience in different areas of industry and academy raised some important issues in career planning to help undergraduate chemistry students to get prepared for the future professional life.
Ariane Baffa Lourenço; Jerino Queiroz Ferreira; Salete Linhares Queiroz
Examining the nature of discourse actions of pre-service chemistry teachers in order to allow the students to construct arguments.
Tathiane Milaré; Patrícia Los Weinert
The main result of study on the profile and expectations indicated that students in Chemistry in University of Ponta Grossa, Paraná, Brazil, would like be a teacher or continue their studies in post-graduation.
Daniel Kremr; Tomás Bajer; Petra Bajerová; Silvie Surmová; Karel Ventura
According to the IUPAC, the term chlorogenic acid should be used for 5-caffeoylquinic acid and NOT for 3-caffeoylquinic acid.
On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
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