22:32, Sun Jun 16

Open Access/APCs

vol. 29, No. 5, 2018, p. 895-1166


IUPAC 49th General Assembly

IUPAC 49th General Assembly

Editorial J. Braz. Chem. Soc. 2018, 29(5), 895

Sustainability & Diversity through Chemistry: Together, We Made that Happen

Adriano D. Andricopulo; Aldo J. G. Zarbin

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Account J. Braz. Chem. Soc. 2018, 29(5), 896-915

Determination of Enantioselectivities by Means of Chiral Stationary Phase HPLC in Order to Identify Effective Proline-Derived Organocatalysts

Jorge Vargas-Caporali; Eusebio Juaristi

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Chiral HPLC (high performance liquid chromatography) constitutes a central part in the evaluation of the organocatalytic potential of new ligands in prototypical asymmetric reactions. The graphical abstract correlates in a wordplay a high ee (enantiomeric excess) chromatogram with a good Cat* (catalyst) and a racemic chromatogram with an unsatisfactory Cat*.


Published online: November 27, 2017

Review J. Braz. Chem. Soc. 2018, 29(5), 916-924

Advances of Submarine Groundwater Discharge Studies in South America

Mariele Paiva; Felipe H. Niencheski

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Submarine groundwater discharge plays an important role on the biogeochemistry of the oceans. How much do we know about this process in South America?


Published online: December 5, 2017

J. Braz. Chem. Soc. 2018, 29(5), 925-933

Ditryptophan Cross-Links as Novel Products of Protein Oxidation

Verônica Paviani; Gabriel T. Galdino; Janaina N. dos Prazeres; Raphael F. Queiroz; Ohara Augusto

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The formation of ditryptophan cross-links during the oxidation of proteins by biological agents and/or environmental factors is becoming recognized and deserves the attention of more researchers.


Published online: December 21, 2017

J. Braz. Chem. Soc. 2018, 29(5), 934-947

Electrochemical Systems for Renewable Energy Conversion from Salinity and Proton Gradients

William G. Morais; Gilberto Lima; Wellington J. A. S. Gomes; Fritz Huguenin

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Working principle and electrode materials of electrochemical systems for energy conversion from proton and salt gradient.


Published online: January 22, 2018

J. Braz. Chem. Soc. 2018, 29(5), 948-959

Green Processing of Strategic Elements Based on Magnetic Nanohydrometallurgy

Ulisses Condomitti; Sabrina N. Almeida; Alceu T. Silveira Jr.; Fernando M. de Melo; Henrique E. Toma

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Separation of strategic elements based on magnetic nanohydrometallurgy.


Published online: January 22, 2018

J. Braz. Chem. Soc. 2018, 29(5), 960-972

Fundamental Consideration for Electrochemical Engineering of Supercapattery

Bamidele Akinwolemiwa; George Z. Chen

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Supercapattery is a generic term for a large number of hybrid electrochemical energy storage devices that combine the merits of supercapacitor and rechargeable battery. For engineering design, it is imperative to understand the charge storage mechanisms in the electrodes so that high voltage and space-material efficient stack of multiple cells can be manufactured with optimal performance and commercial affordability.


Published online: January 23, 2018

J. Braz. Chem. Soc. 2018, 29(5), 973-981

Nanopharmaceuticals and Their Applications in Bladder Cancer Therapy: a Mini Review

Nelson Durán; Wagner J. Fávaro

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Graphene oxide (GO) and a nanostructured lipid carrier (NLC) carrying doxorubicin (DOX) were effective on in vivo treatment of non-muscle invasive bladder cancer (NMIBC) with an enhancement effect by silencing oncogenes via small interfering RNA (siRNA).


Published online: January 25, 2018

J. Braz. Chem. Soc. 2018, 29(5), 982-988

Development of Web and Mobile Applications for Chemical Toxicity Prediction

Vinicius M. Alves; Rodolpho C. Braga; Eugene Muratov; Carolina H. Andrade

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General workflow for the development and implementation of quantitative structure-activity relationships (QSAR) models in web and mobile applications.


Published online: January 29, 2018

J. Braz. Chem. Soc. 2018, 29(5), 989-997

Grafting of Quinones on Carbons as Active Electrode Materials in Electrochemical Capacitors

Thierry Brousse; Charles Cougnon; Daniel Bélanger

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Grafting quinone molecules on porous carbons improves their charge storage properties for application as electrode in energy storage systems.


Published online: February 5, 2018

J. Braz. Chem. Soc. 2018, 29(5), 998-1031

Natural Products from Marine Invertebrates and Microorganisms in Brazil between 2004 and 2017: Still the Challenges, More Rewards

Laura P. Ióca; Karen J. Nicacio; Roberto G. S. Berlinck

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Natural products from marine macro- and microorganisms in Brazil encompass a variety of metabolic classes, including complex alkaloids and polyketides, many of which present potent biological activities and have been the subject of synthetic and biosynthetic investigations.


Published online: February 5, 2018

J. Braz. Chem. Soc. 2018, 29(5), 1032-1040

Flow Analysis: Looking Back and Forward

Fábio R. P. Rocha

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Main characteristics and perspectives of the researches on flow analysis.


Published online: February 6, 2018

J. Braz. Chem. Soc. 2018, 29(5), 1041-1075

Computer-Guided Total Synthesis of Natural Products. Recent Examples and Future Perspectives

Franco Della-Felice; Ronaldo A. Pilli; Ariel M. Sarotti

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The use of nuclear magnetic resonance (NMR) calculations can facilitate the total synthesis of natural products of uncertain structural assignment.


Published online: February 20, 2018

Articles J. Braz. Chem. Soc. 2018, 29(5), 1076-1085

Functionalization of P3HT with Various Mono- and Multidentate Anchor Groups

Florian Menk; Ana Fokina; Bernd Oschmann; Tobias A. Bauer; Yannick Nyquist; Lydia Braun; Jonathan Kiehl; Rudolf Zentel

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To functionalize inorganic nanoparticles (TiO2 and CdSe) P3HT was synthesized and modified with various mono- and multidentate anchor groups via "click"-reaction.


Published online: October 17, 2017

J. Braz. Chem. Soc. 2018, 29(5), 1086-1093

In situ Determination of K, Ca, S and Si in Fresh Sugar Cane Leaves by Handheld Energy Dispersive X-Ray Fluorescence Spectrometry

Marcelo B. B. Guerra; Andressa Adame; Eduardo de Almeida; Marcos A. S. Brasil; Carlos E. G. R. Schaefer; Francisco J. Krug

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Portable energy dispersive X-ray fluorescence spectrometry was evaluated in the in situ analysis of fresh sugar cane leaves aiming at real time plant nutrition diagnosis.


Published online: December 13, 2017

J. Braz. Chem. Soc. 2018, 29(5), 1094-1104

CO Tolerance and Stability of Proton Exchange Membrane Fuel Cells with Nafion® and Aquivion® Membranes and Mo‑Based Anode Electrocatalysts

Renato C. Iezzi; Rapher D. M. Santos; Gabriel C. da Silva; Valdecir A. Paganin; Edson A. Ticianelli

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Cell performance decay after catalyst accelerated aging cyclings: unchanged Pt particles in the anode.


Published online: December 13, 2017

J. Braz. Chem. Soc. 2018, 29(5), 1105-1114

Biosynthetic Insights into p-Hydroxybenzoic Acid-Derived Benzopyrans in Piper gaudichaudianum

Andrea N. L. Batista; João M. Batista Jr.; Tatiana M. Souza‑Moreira; Sandro R. Valentini; Massuo J. Kato; Cleslei F. Zanelli; Maysa Furlan

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Transcriptomics reveals the biosynthetic origin of p-hydroxybenzoic acid in Piper gaudichaudianum.


Published online: December 20, 2017

J. Braz. Chem. Soc. 2018, 29(5), 1115-1122

Production of Furan Compounds from Sugarcane Bagasse Using a Catalytic System Containing ZnCl2/HCl or AlCl3/HCl in a Biphasic System

Gustavo R. Gomes; Daniel S. Rampon; Luiz P. Ramos

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Cellulosic materials and sugarcane bagasse polysaccharides were converted to furan compounds using ZnCl2/HCl or AlCl3/HCl in a biphasic system.


Published online: January 30, 2018

J. Braz. Chem. Soc. 2018, 29(5), 1123-1129

An Environmentally Friendly Procedure to Obtain Flavonoids From Brazilian Citrus Waste

Barbara S. Bellete; Luize Z. Ramin; Deyvid Porto; Alany I. Ribeiro; Moacir R. Forim; Vânia G. Zuin; João B. Fernandes; Maria Fátima G. F. Silva

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Brazilian citrus waste can be an attractive source of various flavonoids. The rich diversity and quantity of flavonoids in this residual biomass opens up new opportunities in terms of producing commodities considering a greater perspective of process valorization.


Published online: February 8, 2018

J. Braz. Chem. Soc. 2018, 29(5), 1130-1139

Electrodeposition of Prussian Blue/Carbon Nanotube Composites at a Liquid‑Liquid Interface

Samantha Husmann; Samuel G. Booth; Aldo J. G. Zarbin; Robert A. W. Dryfe

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Prussian Blue electrodeposition over a carbon nanotube film assembled at a liquid-liquid interface has been monitored by in situ Raman spectroscopy.


Published online: February 16, 2018

J. Braz. Chem. Soc. 2018, 29(5), 1140-1148

Determination of Target Pesticide Residues in Tropical Fruits Employing Matrix Solid-Phase Dispersion (MSPD) Extraction Followed by High Resolution Gas Chromatography

Silvia S. Freitas; Felipe A. T. Serafim; Fernando M. Lanças

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Pesticides are undesirable contaminants often present in food samples, particularly in fruits. A preliminary step (extraction) is conducted to transfer the pesticides from the original fruit matrix (in this paper matrix solid-phase dispersion (MSPD) was used) to a chromatographic system (in this paper gas chromatography with electron-capture detection (GC-ECD) was used) in order to determine the target compounds.


Published online: March 7, 2018

Short Report J. Braz. Chem. Soc. 2018, 29(5), 1149-1156

Simultaneous Multienzymatic Screening with Fluorogenic Probes

Maria L. S. O. Lima; Michel R. B. Chaves; Renato M. C. do Nascimento; Caroline C. S. Gonçalves; Anita J. Marsaioli

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Multienzymatic screening is an interesting and promising methodology that makes possible the simultaneous monitoring of two or more enzymatic activities, in the same microorganism, using fluorogenic probes with different emission wavelengths.


Published online: October 17, 2017

J. Braz. Chem. Soc. 2018, 29(5), 1157-1161

Total Synthesis of Altissimacoumarin D, a Small Molecule Sirtuin1 Activator

Anna C. Silva; Hanae Benelkebir; Rosangela S. C. Lopes; Claudio C. Lopes; A. Ganesan

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The total synthesis of the Sirtuin1 activator altissimacoumarin D was accomplished in six steps from 2,4-dihydroxybenzaldehyde.


Published online: February 9, 2018

J. Braz. Chem. Soc. 2018, 29(5), 1162-1166

Mass Spectrometry Analysis of Protonated Marine Natural Product Seriniquinone

Rodrigo M. da Silva; Thais Guaratini; Paula C. Jimenez; William Fenical; Letícia V. Costa-Lotufo; Ricardo Vessecchi; Norberto P. Lopes

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Gas phase dissociation reactions study of the anticancer candidate seriniquinone isolated from marine bacterium established by electrospray ionization tandem mass spectrometry (ESI-MS/MS).


Published online: March 5, 2018

Online version ISSN 1678-4790 Printed version ISSN 0103-5053
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