JBCS

18:57, Fri Aug 18

Open Access/APCs

Current Issue vol. 28, No. 9, 2017, p. 1585-1841

 

Why to publish a special issue for young researchers?

This special issue is dedicated to young researchers/ professors developing their activities in chemistry, either in Brazilian Universities or Research Institutes. The idea was born among the editors of the JBCS as a way to publicize research activities run by young researchers that had been incorporated into the national research system in the last 10 years.

(Read more at Editorial)

Special Issue Young Brazilian Researchers




Editorial J. Braz. Chem. Soc. 2017, 28(9), 1585

Why to publish a special issue for young researchers?

Roberto M. Torresi

How to cite this article

 

http://dx.doi.org/10.21577/0103-5053.20170123


Account J. Braz. Chem. Soc. 2017, 28(9), 1586-1607

The Chemical Conversion of Biomass-Derived Saccharides: an Overview

Jean Marcel R. Gallo; Marilia A. Trapp

How to cite this article

 

The challenges and perspectives on the use of the saccharide fraction on lignocellulosic biomass as industrial feedstock are presented and discussed.

http://dx.doi.org/10.21577/0103-5053.20170009

Published online: January 30, 2017

Articles J. Braz. Chem. Soc. 2017, 28(9), 1608-1618

Nano-Sized Silver Colloids Produced and Stabilized by Amino-Functionalized Polymers: Polymer Structure-Nanoparticle Features and Polymer Structure-Growth Kinetics Relationships

Carin C. S. Batista; Lindomar J. C. Albuquerque; Caroline A. S. Ribeiro; Carlos E. de Castro; Erica G. A. Miranda; Iseli L. Nantes; Brunno L. Albuquerque; Mateus B. Cardoso; Fernando C. Giacomelli

How to cite this article

 

Facile synthesis of highly stable silver colloids is achieved by using reducing/stabilizer amino-functionalized polymers without the aid of any other external agent.

http://dx.doi.org/10.21577/0103-5053.20160295

Published online: November 11, 2016

J. Braz. Chem. Soc. 2017, 28(9), 1619-1629

Nanostructured Antigen-Responsive Hydrogels Based on Peptides for Leishmaniasis Detection

Sivoney F. Souza; Sergio Kogikoski Jr.; Emerson R. Silva; Wendel A. Alves

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Encapsulating antigens in a peptide-based hydrogel matrix appears as an innovative opportunity to develop new biosensing devices for diagnosis.

http://dx.doi.org/10.21577/0103-5053.20160301

Published online: November 17, 2016

J. Braz. Chem. Soc. 2017, 28(9), 1630-1638

AgAu Nanotubes: Investigating the Effect of Surface Morphologies and Optical Properties over Applications in Catalysis and Photocatalysis

Thenner S. Rodrigues; Anderson G. M. da Silva; Arthur B. L. de Moura; Rafael S. Geonmonond; Pedro H. C. Camargo

How to cite this article

 

The effect of controlled surface morphologies properties in AgAu nanotubes over catalytic and plasmonic photocatalytic performance was studied.

http://dx.doi.org/10.21577/0103-5053.20160304

Published online: November 22, 2016


J. Braz. Chem. Soc. 2017, 28(9), 1639-1649

Silver Nanocoatings at Large Length Scales: Influence of the AgNPs Morphology and Capping Agents on the Coating Chemical Stability and Antimicrobial Effect

Francisco A. Sousa; Victor T. Noronha; Terezinha F. Machado; José V. Silveira; Francisco A. Cunha; Pierre B. A. Fechine; Amauri J. Paula

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Large-field X-ray imaging performed in a scanning electron microscope enables the identification of more than 100,000 agglomerates present in nanocoatings formed by AgNPs produced from different sources and with different capping agents.

http://dx.doi.org/10.21577/0103-5053.20160310

Published online: November 29, 2016


J. Braz. Chem. Soc. 2017, 28(9), 1650-1656

Batch-Injection Amperometric Determination of Pyrogallol in Biodiesel Using a Multi-Walled Carbon Nanotube Modified Electrode

Rafael M. Cardoso; Rafael M. Dornellas; Ana P. Lima; Rodrigo H. O. Montes; Eduardo M. Richter; Rodrigo A. A. Munoz

How to cite this article

 

MWCNT-modified electrode coupled with batch injection analysis with amperometric detection to quantify the antioxidant pyrogallol in biodiesel.

http://dx.doi.org/10.21577/0103-5053.20160316

Published online: December 7, 2016

J. Braz. Chem. Soc. 2017, 28(9), 1657-1664

Determination of Inorganic Contaminants in Electrical and Electronic Equipment after Digestion Using Microwave-Assisted Single Reaction Chamber

Jussiane S. S. Oliveira; Sindy R. Krzyzaniak; Rochele S. Picoloto; Rodrigo C. Bolzan; Paola A. Mello

How to cite this article

 

The feasibility of wet digestion using microwave-assisted single reaction chamber for waste of electric and electronic equipment was demonstrated.

http://dx.doi.org/10.21577/0103-5053.20160317

Published online: December 7, 2016

J. Braz. Chem. Soc. 2017, 28(9), 1665-1672

Spectroscopic Characterization of Charge Transfer Complexes of TCNE with Aromatic Amines - The First Step of Tricyanovinylation Reaction

Natália M. Monezi; Rômulo A. Ando

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Resonance Raman, UV-Vis and DFT characterization of the charge transfer complexes formed by TCNE and aromatic amines.

http://dx.doi.org/10.21577/0103-5053.20160329

Published online: December 21, 2016


J. Braz. Chem. Soc. 2017, 28(9), 1673-1681

Microwave-Assisted Oxidation of Organic Matter Using Diluted HNO3 under O2 Pressure: Rationalization of the Temperature Gradient Effect for Acid Regeneration

Cezar A. Bizzi; Juliano S. Barin; Jussiane S. S. Oliveira; Giancarlo Cravotto; Erico M. M. Flores

How to cite this article

 

The influence of temperature gradient was critically evaluated for understanding in situ HNO3 regeneration reactions for organic matter oxidation.

http://dx.doi.org/10.21577/0103-5053.20170001

Published online: January 24, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1682-1690

Strategy for Treating a Landfill Leachate by Integration of Physico-Chemical and Photo-Fenton Processes

Valdislaine M. Silva; Oswaldo Gomes Júnior; Jader O. Silva; Arlene B. S. Nossol; Raquel M. F. Sousa; Antonio E. H. Machado; Alam G. Trovó

How to cite this article

 

A protocol was proposed, aiming at treating sanitary landfill leachate, integrating physico-chemical processes (coagulation-flocculation-decantation, pH adjustment to 5 and membrane filtration) and modified solar/photo-Fenton reactions.

http://dx.doi.org/10.21577/0103-5053.20170002

Published online: January 24, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1691-1697

Feasibility of DLLME for the Extraction and Preconcentration of As and Cd in Sugar for Further Determination by ICP-MS

Tassia S. Seeger; Paula Dalla Vecchia; Eduarda Q. Machado; Karine Reinke; Marcia F. Mesko; Fabio A. Duarte

How to cite this article

 

A dispersive liquid-liquid microextraction (DLLME) method for extraction and preconcentration of As and Cd in sugar for further determination by inductively coupled plasma mass spectrometry (ICP-MS) was proposed.

http://dx.doi.org/10.21577/0103-5053.20170005

Published online: January 24, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1698-1707

Bioelectrooxidation of Ethanol Using NAD-Dependent Alcohol Dehydrogenase on Oxidized Flexible Carbon Fiber Arrays

Andressa R. Pereira; João C. P. de Souza; Andressa D. Gonçalves; Kamila C. Pagnoncelli; Frank N. Crespilho

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Oxidized carbon fiber modified with NAD-dependent alcohol dehydrogenase for ethanol bioelectrocatalysis.

http://dx.doi.org/10.21577/0103-5053.20170012

Published online: February 3, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1708-1714

Confocal Fluorescence Microscopy and Kinetics of the Cr3+-Chromate Ion Oxidation Equilibria at the Solid Liquid Interface

Gizelle I. Almerindo; Anika P. A. Gaborim; Lucas M. Nicolazi; Muhammad Idrees; Faruk Nome; Haidi D. Fiedler; Rene A. Nome

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Confocal microscopy images of Cr3+ in pearls before and after oxidation to Cr6+.

http://dx.doi.org/10.21577/0103-5053.20170015

Published online: February 6, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1715-1724

Tailored Silica Nanoparticles Surface to Increase Drug Load and Enhance Bactericidal Response

Luciane F. de Oliveira; Karim Bouchmella; Agustin S. Picco; Larissa B. Capeletti; Kaliandra A. Gonçalves; João Henrique Z. dos Santos; Jörg Kobarg; Mateus B. Cardoso

How to cite this article

 

Amino-surface functionalization of silica nanoparticles was used as a strategy to increase the water-insoluble drug load and enhance antimicrobial properties.

http://dx.doi.org/10.21577/0103-5053.20170017

Published online: February 6, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1725-1731

High Order Cyclic Voltammograms During Electrooxidation of Ethanol Catalyzed by Gold

Kaline N. da Silva; Suelen T. Maruyama; Elton Sitta

How to cite this article

 

Complex behavior was found during ethanol electrooxidation onto gold and the results interpreted as a surface roughening/relaxation effect. Cations display an important and unexpected role in this process.

http://dx.doi.org/10.21577/0103-5053.20170020

Published online: February 8, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1732-1740

Nickel-Copper Alloys Modified Electrodes: an Electrochemical Study on their Interfacial and Supercapacitive Properties

Franciele Wolfart; Bianca R. Brito; Luís F. Marchesi; Marcio Vidotti

How to cite this article

 

Ni/Cu alloys were studied in their supercapacitive properties. The bare copper substrates were modified by a simple and straightforward methodology.

http://dx.doi.org/10.21577/0103-5053.20170021

Published online: February 8, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1741-1751

Influence of the Protonatable Site in the Photo-Induced Proton-Coupled Electron Transfer between Rhenium(I) Polypyridyl Complexes and Hydroquinone

Fernando S. Prado; Sinval F. Sousa; Antonio Eduardo H. Machado; Antonio Otavio T. Patrocinio

How to cite this article

 

The influence of the protonatable site of the ancillary ligand, L, in the photo-induced proton coupled electron transfer of fac-[Re(CO3)(2,2'-bpy)(L)]+ with hydroquinone is investigated through theoretical and photophysical studies.

http://dx.doi.org/10.21577/0103-5053.20170022

Published online: February 9, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1752-1759

Photoelectroanalytical Detection of Adrenaline Based on DNA and TiO2 Nanoparticles Sensitized with Bis(ethylenedithio)tetrathiafulvalene Exploiting LED Light

Thiago Augusto D. Santos; Sakae Yotsumoto Neto; Cleidivan S. Macena; Rita de Cássia S. Luz; Flávio S. Damos

How to cite this article

 

DNA/anatase TiO2 nanoparticles sensitized with bis(ethylenedithio)tetrathiafulvalene composite for photoelectrochemical detection of adrenaline exploiting a commercial light emitting diode as illumination source.

http://dx.doi.org/10.21577/0103-5053.20170026

Published online: February 14, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1760-1767

Degrading Pesticides with Waste Product: Imidazole-Functionalized Rice Husk Catalyst for Organophosphate Detoxification

José G. L. Ferreira; Elisa S. Orth

How to cite this article

 

A rice husk-derived catalyst containing imidazole was obtained, with high catalytic efficiency for degrading organophosphates, such as the pesticide Paraoxon.

http://dx.doi.org/10.21577/0103-5053.20170027

Published online: February 14, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1768-1778

Improved NADH Electroanalysis on Nickel(II) Phthalocyanine Tetrasulfonic Acid/Calf Thymus Deoxyribonucleic Acid/Reduced Graphene Oxide Composite

Izabela Aparecida L. Ribeiro; Sakae Yotsumoto-Neto; Wallans T. P. dos Santos; Ridvan N. Fernandes; Marilia O. F. Goulart; Flavio S. Damos; Rita de Cássia S. Luz

How to cite this article

 

NADH oxidation on a composite based on deoxyribonucleic acid from calf thymus (CT-DNA), nickel tetrasulfonated phthalocyanine (NiTsPc) and reduced graphene oxide (rGO).

http://dx.doi.org/10.21577/0103-5053.20170030

Published online: February 15, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1779-1787

Determination of Hg in Biological Samples and Ethanol Fuel by Photochemical Vapor Generation after Pre-Concentration in a Gold Trap

Eliezer Q. Oreste; Richard M. de Oliveira; Anderson S. Ribeiro; Talal S. Mahmoud; Mariana A. Vieira

How to cite this article

 

The photochemical vapor generation with pre-concentration in Au column was applied to determine Hg in biological and ethanol fuel samples.

http://dx.doi.org/10.21577/0103-5053.20170038

Published online: February 23, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1788-1802

Synthesis, Characterization, and Photocatalytic Activity of Pure and N-, B-, or Ag- Doped TiO2

Paula C. S. Bezerra; Rodrigo P. Cavalcante; Aline Garcia; Heberton Wender; Marco A. U. Martines; Gleison A. Casagrande; Jaime Giménez; Pilar Marco; Silvio C. Oliveira; Amilcar Machulek Jr.

How to cite this article

 

Photocatalytic degradation of methylene blue using N-doped TiO2 was significantly more pronounced than with pure TiO2.

http://dx.doi.org/10.21577/0103-5053.20170040

Published online: February 24, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1803-1815

Investigation of Electrocatalysts for Selective Reduction of CO2 to CO: Monitoring the Reaction Products by on line Mass Spectrometry and Gas Chromatography

Mariana R. Camilo; Wanderson O. Silva; Fabio H. B. Lima

How to cite this article

 

CO2 electrochemical reduction on metal nanoparticle-catalyzed porous electrode interface on line coupled to a differential electrochemical mass spectrometer (DEMS) for instantaneous monitoring of the gaseous products.

http://dx.doi.org/10.21577/0103-5053.20170061

Published online: March 31, 2017

J. Braz. Chem. Soc. 2017, 28(9), 1816-1821

The Effect of Hydrothermal Treatment on the Morphologies and Optical Properties of Upconversion NaYF4:Ln3+ Crystals

Marcos A. Calil Júnior; Átila A. C. Melo; Emille M. Rodrigues; Fernando A. Sigoli; Marcelo O. Rodrigues

How to cite this article

 

NaYF4:Ln3+ crystals from 25 nm to 6.4 µm average diameter was obtained by hydrothermal treatments.

http://dx.doi.org/10.21577/0103-5053.20170068

Published online: April 11, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1822-1829

Prediction of Total Acid Number in Distillation Cuts of Crude Oil by ESI(−) FT‑ICR MS Coupled with Chemometric Tools

Luciana A. Terra; Paulo R. Filgueiras; Rosana C. L. Pereira; Alexandre O. Gomes; Géssica A. Vasconcelos; Lilian V. Tose; Eustáquio V. R. Castro; Boniek G. Vaz; Wanderson Romão; Ronei J. Poppi

How to cite this article

 

Chemometrics workflow used on the prediction of total acid number in distillation cuts of crude oil.

http://dx.doi.org/10.21577/0103-5053.20170073

Published online: April 20, 2017


J. Braz. Chem. Soc. 2017, 28(9), 1830-1841

Synthesis and Photophysical Characterization of Proton Transfer-Based Thiourea Derivatives: Potential Application as Colorimetric Naked-Eye Chemosensor for Fluoride Detection in Solution

Cláudia B. da Silva; Thais Kroetz; Fabiano S. Santos; Fabiano S. Rodembusch

How to cite this article

 

ESIPT (excited state intramolecular proton transfer) based thiourea dyes were synthesized and presented optical sensing of fluoride by the naked-eye and UV-Vis spectroscopy.

http://dx.doi.org/10.21577/0103-5053.20170098

Published online: May 31, 2017

Online version ISSN 1678-4790 Printed version ISSN 0103-5053
Journal of the Brazilian Chemical Society
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