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Current Issue vol. 35, No. 9, 2024

 

Carbamates are valuable compounds, albeit some of them can be hazardous. They may bring life and hope, as seen in relevant drugs and in agrochemicals that improve crop productivity through pest control. However, excessive use poses environmental and health risks. The inclusion of some carbamates in the Chemical Weapons Convention reminds of their toxicity and potential danger. Details are presented in the Review Carbamates: Are they "Good" or "Bad Guys"? by Diego G. R. Voris, Samir F. A. Cavalcante, Caio V. N. Borges and Antonio L. S. Lima on e-20240058.


Cover Article
J. Braz. Chem. Soc. 2024, 35(9), e-20240058, 1-14

Carbamates: Are they "Good" or "Bad Guys"?

Diego G. R. Voris ; Samir F. A. Cavalcante ; Caio V. N. Borges ; Antonio L. S. Lima

How to cite this article

Carbamates are valuable compounds, albeit some of them can be hazardous. They may bring life and hope, as seen in relevant drugs and in agrochemicals that improve crop productivity through pest control. However, excessive use poses environmental and health risks. The inclusion of some carbamates in the Chemical Weapons Convention reminds of their toxicity and potential danger. Details are presented in the Review Carbamates: Are they "Good" or "Bad Guys"? by Diego G. R. Voris, Samir F. A. Cavalcante, Caio V. N. Borges and Antonio L. S. Lima on e-20240058.

https://dx.doi.org/10.21577/0103-5053.20240058

Published online: April  17, 2024
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Review J. Braz. Chem. Soc. 2024, 35(9), e-20240042, 1-19

A Systematic Review of Tropospheric Ozone Modeling Using Community Multiscale Air Quality Model (CMAQ)

Thiago F. da Costa ; Josie B. B. Carvalho ; Rizzieri Pedruzzi ; Taciana T. A. Albuquerque; Eduardo M. Martins

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This critical review encompasses the analysis of studies from 2016 to 2023 that employ the Community Multiscale Air Quality Model (CMAQ) model for ozone simulation.

https://dx.doi.org/10.21577/0103-5053.20240042

Published online: March 28, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240058, 1-14

Carbamates: Are they "Good" or "Bad Guys"?

Diego G. R. Voris ; Samir F. A. Cavalcante ; Caio V. N. Borges ; Antonio L. S. Lima

How to cite this article

 

In this short review, we present how carbamates can be seen as "good guys" by their use in medicine (hope), or "bad guys", due to their misuse in pesticides and as chemical weapons (death).

https://dx.doi.org/10.21577/0103-5053.20240058

Published online: April 17, 2024

 

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Articles J. Braz. Chem. Soc. 2024, 35(9), e-20240044, 1-10

Longitudinal Gradient and Historical Trends of Arsenic and Metals in a Tropical Reservoir

Roberta C. Salles; Rafael Mantovaneli ; Luana S. Moreira ; Rubens C. L. Figueira ; Geisamanda P. Brandão ;
Gilberto F. Barroso ; Renato Rodrigues Neto ; Maria Tereza W. D. Carneiro

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The study investigated the distribution of arsenic and metals in a Brazilian tropical reservoir over time. Elevated element concentrations were found in specific water and sediment zones. The sediment core dated back to 1940 and showed increasing element concentrations, emphasizing the need for ongoing monitoring.

https://dx.doi.org/10.21577/0103-5053.20240044

Published online: April 3, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240045, 1-16

Effect of Fe3O4:RGO Ratios in Magnetic Nanocomposites Applied for Dye Discoloration

Arthur H. A. Gonçalves; Pedro H. C. Siciliano; Carla R. Moreira; Odivaldo C. Alves; Alexander Caytuero; Elisa M. B. Saitovitch; Fred. J. Litterst; Deborah V. Cesar;Cristiane A. Henriques ; Alexandre B. Gaspar

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Simple prepared Fe3O4:RGO catalysts present high activity for indigo carmine dye photodegradation.

https://dx.doi.org/10.21577/0103-5053.20240045

Published online: April 3, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240047, 1-8

LC-FLD Determination of Glyphosate, AMPA and Glufosinate in Surface Water from the Paraná River Basin

Renata P. Gabardo ; Gilcélia A. Cordeiro ; Patricio Peralta-Zamora

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Pesticides extensively used in agriculture show a high potential for contaminating water bodies.

https://dx.doi.org/10.21577/0103-5053.20240047

Published online: April 4, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240048, 1-16

Chitosan/Poly(2-(diisopropylamino)ethyl Methacrylate-Based pH-Sensitive Magnetic Composite for Application in Avermectins Adsorption in Aqueous Medium

Leila S. Teixeira; Stephanne Y. B. de Carvalho; Ana Cláudia dos Santos; Marcella M. C. Borges; Sara S. Vieira ; Keyller B. Borges ; Luiz Gustavo L. Guimarães

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A composite material with magnetic and pH-responsive properties, consisting of chitosan/poly(2-diisopropylamino)ethyl methacrylate (Fe3O4/SiO2/CS/PDPA) was developed for application in avermectins adsorption in aqueous medium.

https://dx.doi.org/10.21577/0103-5053.20240048

Published online: April 5, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240051, 1-10

Identification of Adulterants in Extra Virgin Olive Oil Using HS-SPME-GC-MS and Multivariate Data Analysis

Luana E. Knaul; Leticia Maria S. Santos; Priscila Maria M. Ramos; Martha B. R. Cabrera; André Luis Rüdiger; Marcelo N. Kapp;
Aline T. Toci; Marcela Boroski

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Fatty acids composition indicates lower cost vegetable oils as major source of adulteration, and discriminatory analysis using volatile organic compounds (VOCs) showed the presence of adulterant markers in the extra virgin olive oil (EVOO).

https://dx.doi.org/10.21577/0103-5053.20240051

Published online: April 11, 2024

 

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Total access: 267


J. Braz. Chem. Soc. 2024, 35(9), e-20240052, 1-9

Radioinduced Modulatory Response of Lipid Profiles of Wistar Rats Brain Monitored by DESI-MS Imaging

Matheus F. S. Mingote; Camila Cristina A. de Paula; Tarcísio P. R. de Campos; Géssica Adriana Vasconcelos; Boniek G. Vaz;
Rodinei Augusti

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Lipid images by desorption electrospray ionization mass spectrometry imaging (DESI-MSI) of brains of Wistar rats submitted to total body irradiation (TBI).

https://dx.doi.org/10.21577/0103-5053.20240052

Published online: April 11, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240055, 1-11

Red Propolis: Chemical and Mid-Infrared Spectroscopic Characterization and Classification by Geographic Origin

Amanda B. S. de Lima ; Thinara F. Oliveira; Marcondes V. da Silva; Sibelli P. B. Ferrão; Vítor V. S. de Almeida;
Leandro S. Santos

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Brazilian red propolis from different origins: chemical and mid-infrared spectroscopic characterizations and classification by chemometrics.

https://dx.doi.org/10.21577/0103-5053.20240055

Published online: April 16, 2024

 

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Total access: 277


J. Braz. Chem. Soc. 2024, 35(9), e-20240057, 1-19

Dielectric Properties During Microwave-Induced Interesterification Reactions for Biodiesel and Triacetin Production

Jonas Miguel Priebe; Evandro L. Dall'Oglio ; Leonardo G. de Vasconcelos; Paulo T. de Sousa Jr.; Andressa A. Ramos;
Emanuel D. Rodrigues; Carlos Alberto Kuhnen

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A new methodology employs microwave heating for interesterification reactions for biodiesel and triacetin production.

https://dx.doi.org/10.21577/0103-5053.20240057

Published online: April 17, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240060, 1-11

Antioxidant Potential Optimization of Mixed Vegetable Juice: A Chemometric Approach

Jiuliane M. Silva ; Zeinab E. H. Hussein; Lucas U. R. Chiavelli; Oscar O. Santos

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This graphic illustrates the optimization of a mixed juice formula resulting in an optimal blend with high antioxidant activity.

https://dx.doi.org/10.21577/0103-5053.20240060

Published online: April 19, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240061, 1-11

Eudragit® L100 Post-Modification via Ugi Multicomponent Reaction

Cássia A. Brito ; Eduardo M. B. da Silva; Luis P. Icart; Marcos L. Dias

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The Ugi multicomponent reaction (MCR) involves four components (aldehyde, amine, isocyanide, and carboxylic acid) to form bisamide. In this study, the reaction utilized a carbohydrate, an aromatic amine, a commercial copolymer, and tert-butyl isocyanide.

https://dx.doi.org/10.21577/0103-5053.20240061

Published online: April 22, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240062, 1-11

A Semi-Automated Molecularly Imprinted Polymer Solid-Phase Extraction Method for Catechin Analysis from Jaboticaba (Plinia sp.) Peel Extract Samples by UHPLC-DAD

Alessandra T. Cardoso; Rafael O. Martins ; Lucas S. Machado ; Lucília Kato; Rosineide C. Simas; Carmen Lúcia Cardoso ; Andréa R. Chaves

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Molecularly imprinted polymers applied for the extraction of catechin from jaboticaba peel samples in a semi-automated analytical approach.

https://dx.doi.org/10.21577/0103-5053.20240062

Published online: April 23, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240064, 1-7

Putative Inhibitor of TcCYP51 from a Library of Approved Drugs: A Virtual Screening Study

Luiz Augusto P. Flores-Junior ; Eldio G. dos Santos ; Estela Maris F. Muri ; Camilo Henrique S. Lima ; Luiza Rosaria S. Dias

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A virtual screening protocol to identify possible Trypanosoma cruzi sterol 14α-demethylase (TcCYP51) inhibitors from U.S. Food and Drug Administration (FDA)-approved drugs using combined computational techniques.

https://dx.doi.org/10.21577/0103-5053.20240064

Published online: April 23, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240066, 1-13

Preparation of TiO2/Lignin Composites with Agave sisalana Residue for Bisphenol-A Removal

Aleir J. O. Silva; Franklin D. Xavier; Maria G. da Fonseca; Marta M. da Conceição

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Preparation of lignin/TiO2 composites with Agave sisalana residue applied for bisphenol-A removal. The adsorbent can be used in six cycles, removing over 70% by the third cycle, which indicates good stability.

https://dx.doi.org/10.21577/0103-5053.20240066

Published online: April 26, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240067, 1-10

Active Ni-Titanate Nanostructures for Dry Reforming of Methane

Wesley F. Monteiro ; Vinícius Demétrio da Silva ; Michele O. Vieira ; Camila O. Calgaro; Oscar W. Perez-Lopez;
Marcus Seferin ; Rosane A. Ligabue

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Dry reforming of methane converts CO2 and CH4 into syngas. The calcination at 700 °C results in titanate nanorods. Ni-TNR catalyst enhances CO2 and CH4 conversion with low carbon deposition.

https://dx.doi.org/10.21577/0103-5053.20240067

Published online: April 26, 2024

 

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Short Report J. Braz. Chem. Soc. 2024, 35(9), e-20240046, 1-6

Development of Cross-Linked Gelatin Hydrogel Films Using Tannic Acid as Anti-Aging Active with Skin Care Potential

Gabriele B. de Oliveira; Isadora S. Zamataro; Mariana S. de Oliveira; André S. Gomes; Maria Gabriela A. Barros; Angélica G. Oliveira; Karine Zanella; Caroline C. S. Gonçalves

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Hydrogel films containing tannic acid (TA) were prepared and characterized by different techniques and the active release was investigated to obtain a suitable material to be applied in skin care routines.

https://dx.doi.org/10.21577/0103-5053.20240046

Published online: April 4, 2024

 

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J. Braz. Chem. Soc. 2024, 35(9), e-20240050, 1-10

Understanding Synthesis Parameters for Thionation of Phosphonates Associated with the Chemical Weapons Convention through Principal Component Analysis

Caio V. N. Borges ; Leandro B. Bernardo; Samir F. A. Cavalcante ; Antônio L. S. Lima

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Principal components analysis to determine the parameters impact on thionation by Lawesson's reagent and phosphonates.

https://dx.doi.org/10.21577/0103-5053.20240050

Published online: April 9, 2024

 

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