JBCS



3:22, sex mai 27






Edição Atual vol. 39, No. 4, 2016, p. 409-533

 

New submission procedures for OPEN ACCESS from March 4th, 2016

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...



Artigo de Capa
Quim. Nova 2016, 39(4), 409-414

ZnO AND Ag-ZnO CRYSTALS: SYNTHESIS, CHARACTERIZATION, AND APPLICATION IN HETEROGENEOUS PHOTOCATALYSIS

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.

http://dx.doi.org/10.5935/0100-4042.20160041

Publicado online: março 11, 2016
PDF
Artigos Quim. Nova 2016, 39(4), 415-422

 

THE NOVEL MESOPOROUS SILICA AEROGEL MODIFIED WITH PROTIC IONIC LIQUID FOR LIPASE IMMOBILIZATION

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.

http://dx.doi.org/10.5935/0100-4042.20160042

Publicado online: março 11, 2016
PDF
Quim. Nova 2016, 39(4), 423-430

 

AÇÃO INIBIDORA DE EXTRATOS DA SEMENTE DO MAMÃO PAPAIA NA CORROSÃO DO AÇO-CARBONO 1020 EM HCl 1 MOL L-1

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.

http://dx.doi.org/10.5935/0100-4042.20160046

Publicado online: março 18, 2016
PDF
Quim. Nova 2016, 39(4), 431-436

 

EFEITO DA ATIVAÇÃO QUÍMICA NAS PROPRIEDADES DE SUPERFÍCIE DE XISTO RETORTADO

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.

http://dx.doi.org/10.5935/0100-4042.20160051

Publicado online: março 28, 2016
PDF
Quim. Nova 2016, 39(4), 437-441

 

ESTUDO TEÓRICO DE COMPLEXOS BINUCLEARES DE MANGANÊS(II) COM O LIGANTE 2-HIDROXIBENZILGLICINA, POSSÍVEIS MIMÉTICOS PARA A CATECOL OXIDASE

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.

http://dx.doi.org/10.5935/0100-4042.20160052

Publicado online: março 28, 2016
PDF
Quim. Nova 2016, 39(4), 442-449

 

DETERMINAÇÃO DE METAIS EM ÁGUA E FOLHA DE Aechmea blanchetiana (Baker) L.B

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.

http://dx.doi.org/10.5935/0100-4042.20160058

Publicado online: abril 12, 2016
PDF
Quim. Nova 2016, 39(4), 450-455

 

ELABORAÇÃO E CARACTERIZAÇÃO DE BLENDAS DE AMIDO FOSFORILADO COM QUITOSANA E PVA

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.

http://dx.doi.org/10.5935/0100-4042.20160043

Publicado online: março 11, 2016
PDF
Quim. Nova 2016, 39(4), 456-461

 

ACTIVIDAD ANTIOXIDANTE DE LOS POLIFENOLES DE Hypogymnia tavaresii D. Hawksw. & P. James

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.

http://dx.doi.org/10.5935/0100-4042.20160053

Publicado online: março 28, 2016
PDF Informação suplementar
Quim. Nova 2016, 39(4), 462-466

 

3D NANOCOMPOSITE CHITOSAN/BIOACTIVE GLASS SCAFFOLDS OBTAINED USING TWO DIFFERENT ROUTES: AN EVALUATION OF THE POROUS STRUCTURE AND MECHANICAL PROPERTIES

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.

http://dx.doi.org/10.5935/0100-4042.20160047

Publicado online: março 18, 2016
PDF
Quim. Nova 2016, 39(4), 467-473

 

COMPUTATIONAL STUDY ON STRUCTURE AND PROPERTIES OF NEW ENERGETIC MATERIAL 3,7-BIS(DINITROMETHYLENE)-2,4,6,8-TETRANITRO-2,4,6,8-TETRAAZA-BICYCLO[3.3.0]OCTANE

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.

http://dx.doi.org/10.5935/0100-4042.20160054

Publicado online: março 28, 2016
PDF
Revisão Quim. Nova 2016, 39(4), 474-485

 

PADRÕES DE TURING EM SISTEMAS QUÍMICOS

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.

http://dx.doi.org/10.5935/0100-4042.20160026

Publicado online: fevereiro 18, 2016
PDF
Quim. Nova 2016, 39(4), 486-495

 

FONTES, FORMAÇÃO, REATIVIDADE E DETERMINAÇÃO DE QUINONAS NA ATMOSFERA

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.

http://dx.doi.org/10.5935/0100-4042.20160034

Publicado online: fevereiro 22, 2016
PDF
Nota Técnica Quim. Nova 2016, 39(4), 496-501

 

EVALUATION OF CRYOLITE FROM PITINGA (AMAZONAS-BRAZIL) AS A SOURCE OF HYDROGEN FLUORIDE

Jéssica F. Paulino; Reiner Neumann; Júlio C. Afonso


Production of high purity grade hydrogen fluoride from cryolite.

http://dx.doi.org/10.5935/0100-4042.20160049

Publicado online: março 18, 2016
PDF
Educação Quim. Nova 2016, 39(4), 502-506

 

ENTENDENDO O PROCESSO QUÍMICO DE BIOATIVAÇÃO DA SINVASTATINA POR MÉTODOS EXPERIMENTAIS E COMPUTACIONAIS: UMA AULA PRÁTICA

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.

http://dx.doi.org/10.5935/0100-4042.20160028

Publicado online: fevereiro 18, 2016
PDF Informação suplementar
Quim. Nova 2016, 39(4), 507-512

 

FORMANDO UM PERFIL PROFISSIONAL PARA UMA CARREIRA DE SUCESSO NA INDÚSTRIA

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.

http://dx.doi.org/10.5935/0100-4042.20160030

Publicado online: fevereiro 18, 2016
PDF
Quim. Nova 2016, 39(4), 513-521

 

LICENCIANDOS EM QUÍMICA E ARGUMENTAÇÃO CIENTÍFICA: TENDÊNCIAS NAS AÇÕES DISCURSIVAS EM SALA DE AULA

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.

http://dx.doi.org/10.5935/0100-4042.20160035

Publicado online: fevereiro 22, 2016
PDF
Quim. Nova 2016, 39(4), 522-529

 

PERFIL E PERSPECTIVAS DE ESTUDANTES DO CURSO DE LICENCIATURA EM QUÍMICA DA UEPG

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.

http://dx.doi.org/10.5935/0100-4042.20160022

Publicado online: fevereiro 17, 2016
PDF
Assuntos Gerais Quim. Nova 2016, 39(4), 530-533

 

UNREMITTING PROBLEMS WITH CHLOROGENIC ACID NOMENCLATURE: A REVIEW

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.

http://dx.doi.org/10.5935/0100-4042.20160063

Publicado online: abril 12, 2016
PDF

On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
Química Nova
Publicações da Sociedade Brasileira de Química
Caixa Postal: 26037 05513-970 São Paulo - SP
Tel/Fax: +55.11.3032.2299/+55.11.3814.3602
Free access

GN1