J. Braz. Chem. Soc. 2018, 29(5), 1032-1040
Fábio R. P. Rocha
Main characteristics and perspectives of the researches on flow analysis.
J. Braz. Chem. Soc. 2018, 29(5), 1086-1093
Marcelo B. B. Guerra; Andressa Adame; Eduardo de Almeida; Marcos A. S. Brasil; Carlos E. G. R. Schaefer; Francisco J. Krug
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.
J. Braz. Chem. Soc. 2018, 29(5), 1140-1148
Silvia S. Freitas; Felipe A. T. Serafim; Fernando M. Lanças
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.
J. Braz. Chem. Soc. 2018, 29(5), 1041-1075
Franco Della-Felice; Ronaldo A. Pilli; Ariel M. Sarotti
The use of nuclear magnetic resonance (NMR) calculations can facilitate the total synthesis of natural products of uncertain structural assignment.
Quim. Nova 2018, 41(2), 227-235
Ana Luiza de Quadros; Ariane Suelen Freitas Silva; Eduardo Fleury Mortimer
This figure illustrates a pedagogical link-making in the context of teaching and learning scientific conceptual knowledge.
Quim. Nova 2018, 41(2), 236-242
Phenomenological studies allow a thorough description of laboratory learning environments. Through its analysis researchers gather a better understanding of how learning in the lab occurs. This knowledge informs pedagogical decisions and the design of curricular reforms.
J. Braz. Chem. Soc. 2018, 29(5), 916-924
Mariele Paiva; Felipe H. Niencheski
Submarine groundwater discharge plays an important role on the biogeochemistry of the oceans. How much do we know about this process in South America?
J. Braz. Chem. Soc. 2018, 29(5), 934-947
William G. Morais; Gilberto Lima; Wellington J. A. S. Gomes; Fritz Huguenin
Working principle and electrode materials of electrochemical systems for energy conversion from proton and salt gradient.
J. Braz. Chem. Soc. 2018, 29(5), 960-972
Bamidele Akinwolemiwa; George Z. Chen
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.
J. Braz. Chem. Soc. 2018, 29(5), 989-997
Thierry Brousse; Charles Cougnon; Daniel Bélanger
Grafting quinone molecules on porous carbons improves their charge storage properties for application as electrode in energy storage systems.
J. Braz. Chem. Soc. 2018, 29(5), 1094-1104
Renato C. Iezzi; Rapher D. M. Santos; Gabriel C. da Silva; Valdecir A. Paganin; Edson A. Ticianelli
Cell performance decay after catalyst accelerated aging cyclings: unchanged Pt particles in the anode.
J. Braz. Chem. Soc. 2018, 29(5), 896-915
Jorge Vargas-Caporali; Eusebio Juaristi
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*.
J. Braz. Chem. Soc. 2018, 29(5), 1115-1122
Gustavo R. Gomes; Daniel S. Rampon; Luiz P. Ramos
Cellulosic materials and sugarcane bagasse polysaccharides were converted to furan compounds using ZnCl2/HCl or AlCl3/HCl in a biphasic system.
J. Braz. Chem. Soc. 2018, 29(5), 1149-1156
Maria L. S. O. Lima; Michel R. B. Chaves; Renato M. C. do Nascimento; Caroline C. S. Gonçalves; Anita J. Marsaioli
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.
J. Braz. Chem. Soc. 2018, 29(5), 948-959
Ulisses Condomitti; Sabrina N. Almeida; Alceu T. Silveira Jr.; Fernando M. de Melo; Henrique E. Toma
Separation of strategic elements based on magnetic nanohydrometallurgy.
J. Braz. Chem. Soc. 2018, 29(5), 1076-1085
Florian Menk; Ana Fokina; Bernd Oschmann; Tobias A. Bauer; Yannick Nyquist; Lydia Braun; Jonathan Kiehl; Rudolf Zentel
To functionalize inorganic nanoparticles (TiO2 and CdSe) P3HT was synthesized and modified with various mono- and multidentate anchor groups via "click"-reaction.
J. Braz. Chem. Soc. 2018, 29(5), 925-933
Verônica Paviani; Gabriel T. Galdino; Janaina N. dos Prazeres; Raphael F. Queiroz; Ohara Augusto
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.
J. Braz. Chem. Soc. 2018, 29(5), 982-988
Vinicius M. Alves; Rodolpho C. Braga; Eugene Muratov; Carolina H. Andrade
General workflow for the development and implementation of quantitative structure-activity relationships (QSAR) models in web and mobile applications.
J. Braz. Chem. Soc. 2018, 29(5), 1157-1161
Anna C. Silva; Hanae Benelkebir; Rosangela S. C. Lopes; Claudio C. Lopes; A. Ganesan
The total synthesis of the Sirtuin1 activator altissimacoumarin D was accomplished in six steps from 2,4-dihydroxybenzaldehyde.
J. Braz. Chem. Soc. 2018, 29(5),973-981
Nelson Durán; Wagner J. Fávaro
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).
J. Braz. Chem. Soc. 2018, 29(5), 1130-1139
Samantha Husmann; Samuel G. Booth; Aldo J. G. Zarbin; Robert A. W. Dryfe
Prussian Blue electrodeposition over a carbon nanotube film assembled at a liquid-liquid interface has been monitored by in situ Raman spectroscopy.
J. Braz. Chem. Soc. 2018, 29(5), 998-1031
Laura P. Ióca; Karen J. Nicacio; Roberto G. S. Berlinck
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.
J. Braz. Chem. Soc. 2018, 29(5), 1123-1129
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
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.
J. Braz. Chem. Soc. 2018, 29(5), 1105-1114
Andrea N. L. Batista; João M. Batista Jr.; Tatiana M. Souza‑Moreira; Sandro R. Valentini; Massuo J. Kato; Cleslei F. Zanelli; Maysa Furlan
Transcriptomics reveals the biosynthetic origin of p-hydroxybenzoic acid in Piper gaudichaudianum.
J. Braz. Chem. Soc. 2018, 29(5), 1162-1166
Rodrigo M. da Silva; Thais Guaratini; Paula C. Jimenez; William Fenical; Letícia V. Costa-Lotufo; Ricardo Vessecchi; Norberto P. Lopes
Gas phase dissociation reactions study of the anticancer candidate seriniquinone isolated from marine bacterium established by electrospray ionization tandem mass spectrometry (ESI-MS/MS).