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Recent Papers




Full Paper J. Braz. Chem. Soc. 2025

Theoretical Investigation on a Novel Fluorescent Probe for Sulfite: Structural, Electronic, and Spectral Characteristics Underlying Detection

Yue Ma ; Yongjin Peng ; Shuang Hou

Simulated UV-Vis absorption spectrum of probe and sulfite adduct based on PBE0/def2TZVPD method.

https://dx.doi.org/10.21577/0103-5053.20250124

Published online: July 31, 2025.

 

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J. Braz. Chem. Soc. 2025

Chemometrics of Seasonal Variation on Essential Oil Chemical Composition of Myrciaria tenella (DC.) O. Berg

Luana S. P. Barros ; Rian M. Viana; Ellen N. S. da Cruz; Maria Nancy N. de Lima; Rosa Helena V. Mourão; Joyce Kelly R. da Silva ; Pablo Luis B. Figueiredo

The figure presents the methodological flow of the study of the volatile chemical constituents of Myrciaria tenella. The botanical identification of the species was performed, followed by the extraction of volatile compounds by hydrodistillation. The samples were analyzed by gas chromatography coupled with mass spectrometry to identify (E)-caryophyllene, δ-cadinene, α-calacorene, caryophyllene oxide, and 1-epi-cubenol. Finally, the data obtained were subjected to multivariate statistical analyses.

https://dx.doi.org/10.21577/0103-5053.20250123

Published online: July 30, 2025.

 

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J. Braz. Chem. Soc. 2025

Analysis of Emission Files Generated by a Global Model for Air Quality Simulation in the State of Rio de Janeiro

Thiago F. da Costa ; Otavio M. Sobrinho ; Amanda Karine C. Ribeiro ; Angie Natali Z. Ovalle ; Rizzieri Pedruzzi ;
Taciana T. A. Albuquerque ; Eduardo M. Martins

Analysis of input files from Atmospheric Global Emission Inventory in the State of Rio de Janeiro.

https://dx.doi.org/10.21577/0103-5053.20250122

Published online: July 29, 2025.

 

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J. Braz. Chem. Soc. 2025

The Control of the Adsorption of Doxorubicin on Gold Surfaces Tracked by Surface-Enhanced Raman Scattering Spectroscopy

Pedro Victor A. Pessanha ; Antonio Carlos Sant'Ana

Probing tailored interactions between doxorubicin and surface modified gold nanoparticles by surface-enhanced Raman scattering (SERS) spectroscopy.

https://dx.doi.org/10.21577/0103-5053.20250121

Published online: July 28, 2025.

 

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J. Braz. Chem. Soc. 2025

Production and Characterization of Bacterial Cellulose by Komagataeibacter hansenii UCP1619 Using the Fruit of Cereus jamacaru DC as an Alternative Medium

Amanda C. O. D. Barros ; Ivo D. L. Silva; Adriano N. Simões; José F. Q. Pereira ; Andréa M. S. S. Brito ; Glória M. Vinhas

Representation of the bacterial cellulose (BC) production process using pulp juice from Cereus jamacaru DC fruit fermented with Komagataeibacter hansenii. The steps include the raw fruit, preparation of the medium, and the wet and dry forms of BC.

https://dx.doi.org/10.21577/0103-5053.20250120

Published online: July 24, 2025.

 

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J. Braz. Chem. Soc. 2025

Enhancing the Transgene Performance of Polyethyleneimine through Amino Acid Conjugation

Laís T. de Marco; Fernando A. de Oliveira; Karine Panico; Anabella P. Rosso; Michelle Nascimento-Sales; Mariana M. R. Andrade; Marcelo A. Christoffolete; Lidiane Meier; Ismael C. Bellettini ; Fernando C. Giacomelli

Amino acid-modified branched polyethyleneimines enable safer and more efficient deoxyribonucleic acid (DNA) delivery via polyplex formation, offering novel possibilities, including ocular gene therapy.

https://dx.doi.org/10.21577/0103-5053.20250119

Published online: July 23, 2025.

 

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Articles J. Braz. Chem. Soc. 2025

Chemical Compounds from Ocotea neesiana (Miq.) Kosterm Demolition Wood and Their Effect on the Growth of Xanthomonas citri subsp. citri

Jennifer A. O. Lima; Helena G. Ramos; Junior A. Chaves; Claudete C. do Nascimento; Luiz Henrique K. Queiroz-Junior;
Danielle F. da Silva; Jéssica Cristina Amaral; Maria Fátima das Graças F. da Silva ; Maria da Paz Lima

Phytochemical study of Ocotea neesiana demolition wood led to the purification of eight compounds. The sesquiterpene α-cadinol and the diterpene 16-methylesteritol A exhibited antibacterial potential against Xanthomonas citri subsp. citri.

https://dx.doi.org/10.21577/0103-5053.20250118

Published online: July 22, 2025.

 

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Total access: 145


Communication J. Braz. Chem. Soc. 2025

Green Tools Based on Graphitic-Like Carbon/TiO2/CaCO3 Biocomposites as a High-Performance Platform for CO2 Capture

Angélica G. Oliveira ; Glaucio José Gomes ; Lucas Spessato ; Paulo Rodrigo S. Bittencourt ; Janine C. Padilha ;
Caroline C. S. Gonçalves

Cigarette filters were pyrolyzed to obtain bio-oil and biochar aiming at efficient CO2 adsorption.

https://dx.doi.org/10.21577/0103-5053.20250117

Published online: July 21, 2025.

 

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Full Paper J. Braz. Chem. Soc. 2025

A Comprehensive Multi-Method Approach to Investigating Simvastatin Forced Degradation:
Integrating in silico Evaluation with HRMS, NMR, and UV-HPLC

Paulo Roberto dos Santos ; Manuela Merlin ; Fávero R. Paula ; Sidnei Moura

This study highlights the importance of combining in silico analysis with experimental techniques, emphasizing the need for careful handling of simvastatin, particularly concerning the formation of hydrolysis products, oxidation, and light exposure.

https://dx.doi.org/10.21577/0103-5053.20250116

Published online: July 18, 2025.

 

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J. Braz. Chem. Soc. 2025

Depolymerization of Lignin Using Bimetallic Gold/Palladium Functionalized TiO2 Catalyst

Charles-Oneil L. Crites ; José Carlos Netto-Ferreira; Geniece L. Hallett-Tapley; Samuel Banville; Luc Tremblay

Lignin depolymerization was done using an Au/Pd@TiO2 via three subsequent reactions (alcohol oxidation, photo-cleavage and hydrogenolysis) under light irradiation (UV or green light).

https://dx.doi.org/10.21577/0103-5053.20250115

Published online: July 17, 2025.

 

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Total access: 205


J. Braz. Chem. Soc. 2025

3D-Printed Liquid Handling Robot for the Development of Automated Analytical Methods

Aline D. Assunção ; Diogo M. de Jesus ; Teodoro R. Terra; Raquel G. Rocha ; José A. M. G. Costa; Luiz A. J. da Silva;
Guilherme L. Fernandes; Alessandro G. C. Dias; Rodrigo A. A. Muñoz ; Sidnei G. Silva ; Eduardo M. Richter

A low-cost, 3D-printed liquid handling robot enables autonomous calibration, precise analytical management, and advanced flow analysis, integrating electrochemical and colorimetric detection for unprecedented automation.

https://dx.doi.org/10.21577/0103-5053.20250114

Published online: July 15, 2025.

 

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Total access: 187


J. Braz. Chem. Soc. 2025

Platinum and other Metals Doped-Manganese Tungstate as a Novel Catalytic Support for NaBH4 Hydrolysis and Hydrogen Evolution Under Mild Conditions

Jorge Luiz dos Santos; Iterlandes Machado Junior; Gabriel Henrique Sperandio; Gessica do C. Dias; Anderson Dias;
Geraldo M. de Lima; Renata P. L. Moreira

The platinum nanoparticles (Pt NPs)/MnWO4 composite was synthesized and showed to be an efficient, reusable catalyst for H2 generation via NaBH4 hydrolysis.

https://dx.doi.org/10.21577/0103-5053.20250113

Published online: July 15, 2025.

 

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Total access: 143


J. Braz. Chem. Soc. 2025

Determination of 13 Azithromycin Impurities in Pharmaceutical Formulations by HPLC-UV

Wellerson Wagner B. Silva ; Luiz Fernando S. Novaes ; Luiz Henrique C. Adriano ; Naiara Norberto T. de Oliveira ;
Wilson R. Braz ; Paula R. Chellini ; Marcone Augusto L. de Oliveira

A method was developed and validated, by the application of 32 factorial, for the monitoring of azithomycin (AZM) and its impurities.

https://dx.doi.org/10.21577/0103-5053.20250111

Published online: July 11, 2025.

 

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Total access: 147


Review J. Braz. Chem. Soc. 2025

Koninginins and Related Octaketides from Trichoderma and Other Fungi: Chemical Diversity and Biological Activities

José C. I. Silva ; Felipe M. A. Silva ; Gilvan F. Silva ; Hector H. F. Koolen

A comprehensive review of the chemistry and biological activities of koningins and related fungal octaketides.

https://dx.doi.org/10.21577/0103-5053.20250110

Published online: July 8, 2025.

 

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Full Paper J. Braz. Chem. Soc. 2025

Evaluation of Two Methods for Dyeing Alpaca Fibers Using Synozol Red K3BS and Novacron Navy FN-BN

Stamber A. Ramírez-Revilla ; Oscar A. Serrano Ollancaya ; Gustavo E. F. Vilcapaza Condori ; Derly D. Ortiz-Romero

Application of ultrasound and conventional methods to alpaca fibers, demonstrating the absorption of the dyes Synozol Red K3BS and Novacron Navy FN-BN.

https://dx.doi.org/10.21577/0103-5053.20250109

Published online: July 4, 2025.

 

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Total access: 125


J. Braz. Chem. Soc. 2025

Leishmania chagasi Dihydrofolate Reductase-Thymidylate Synthase Potential Inhibitors Identified by Virtual Screening

Luíza M. de Macêdo; Quezia V. F. S. da Fonseca; Iris C. dos Santos; Quézia L. S. Sampaio; Janine F. S. Silva; Moyses F. de Araujo Neto; Aníbal F. Santos Júnior ; Erika M. O. Ribeiro; Franco H. A. Leite; Humberto F. de Freitas ; Samuel S. R. Pita ; André L. B. Teles

Flowchart summarizing the steps used to conduct virtual screening and identify potential selective inhibitors of Leishmania chagasi dihydrofolate reductase-thymidylate synthase (LcDHFR-TS).

https://dx.doi.org/10.21577/0103-5053.20250108

Published online: July 3, 2025.

 

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Total access: 168


J. Braz. Chem. Soc. 2025

Energy, Fatty Acid, and Cytokine (TNF-α and IL-10) Content in Mature Human Milk: Comparison between Foremilk, Middle Milk, and Hindmilk Breastfeeding Intervals

Matheus C. Castro; Eloize S. Alves; Bruno H. F. Saqueti; Cintia Stefhany R. Ferreira; Joana M. V. Zacarias; Jeane E. L. Visentainer; Francieli S. O. Trombelli; Sueli M. T. Ichisato; Oscar O. Santos ; Jesui V. Visentainer

Study of the energy content, fatty acid composition and cytokines tumor necrosis factor alpha (TNF-α) and interleukin-10 (IL-10) content in mature human milk at different breastfeeding intervals (foremilk, middle milk, and hindmilk).

https://dx.doi.org/10.21577/0103-5053.20250107

Published online: June 26, 2025.

 

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J. Braz. Chem. Soc. 2025

Use of Paper Spray Mass Spectrometry to Detect Phytochelatins in Golden Flaxseed Roots after Contact with Arsenate and Selenite

Giselle V. Sousa ; Vânia L. G. Teles ; Luzia V. Modolo ; Rodinei Augusti ; Letícia M. Costa

Paper-spray mass spectrometry for rapid detection of phytochelatins in golden flaxseed roots exposure to arsenate and selenite.

https://dx.doi.org/10.21577/0103-5053.20250105

Published online: June 25, 2025.

 

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Total access: 207


J. Braz. Chem. Soc. 2025

Chemical Variability and Antioxidant Activity of Stingless Bee Melipona seminigra Geopropolis from Different Amazon Regions

Leonard R. S. de Souza ; Sergio M. Nunomura ; Gislene A. C. Zilse ; Marcos B. Machado ; Rita de Cássia S. Nunomura

Nuclear magnetic resonance (NMR), mass spectrometry (MS) and chemometric analyses have shown the link between chemical diversity and the geographic origin in Melipona seminigra geopropolis.

https://dx.doi.org/10.21577/0103-5053.20250104

Published online: June 25, 2025.

 

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Total access: 205


J. Braz. Chem. Soc. 2025

In vivo and in silico Evaluation of Cashew Nut Shell Liquid and Ag-CNSL Nanoparticles for Anxiolytic Activity in Zebrafish via GABAergic Pathways

Thayllan T. Bezerra ; Mayara O. Almeida ; Pergentino N. Maia Júnior ; Emerson Y. A. Sousa ; Maria K. A. Ferreira ;
Antonio W. Silva ; Giuseppe Mele ; Emmanuel S. Marinho ; Hélcio S. Santos ; Jane E. S. A. Menezes ; Diego Lomonaco ; Selma E. Mazzetto

Exploring the biological activities of Ag-cashew nut shell liquid (CNSL) based nanoparticles and the anxiolytic effects in adult zebrafish via participation of GABAergic system.

https://dx.doi.org/10.21577/0103-5053.20250103

Published online: June 18, 2025.

 

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Total access: 256


J. Braz. Chem. Soc. 2025

The Role of Intermolecular Interactions between Donepezil and Methacrylic Acid in the Synthesis of Crosslinked Polymer Microgels for Drug Delivery

Tereza G. F. Gomides; Victor C. Marques; Priscila P. Silva; Gabriela R. R. Fernandes ; Nathany F. Jammal; Flávia S. Marques ;
Ana P. M. Barboza ; Paula M. A. Vieira ; Jacqueline de Souza ; José D. de Souza Filho ; André L. M. Ruela

Polymeric nanoparticles were synthesized to allow the adsorption of donepezil, resulting in the modified release of this drug following its swelling, through a mechanism related to anomalous diffusion from the polymeric matrix.

https://dx.doi.org/10.21577/0103-5053.20250102

Published online: June 17, 2025.

 

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Total access: 242


J. Braz. Chem. Soc. 2025

Raman Analysis of Natural Pigments During the Ripening Process in Different Types of Peppers

Mariana T. C. Campos ; Lenize F. Maia ; Howell G. M. Edwards ; Luiz F. Cappa de Oliveira

The figure shows the Raman spectra of different stages of pepper ripening and the marker bands of natural pigments, in addition to the chemical structures of compounds present in them.

https://dx.doi.org/10.21577/0103-5053.20250101

Published online: June 13, 2025.

 

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Total access: 280


J. Braz. Chem. Soc. 2025

Ab Initio Study of Hydrogen Adsorption in COF-10

Yingguo Zhao

The calculated adsorption results with two vibrational modes treated as two-dimensional translation reproduce experimental data better.

https://dx.doi.org/10.21577/0103-5053.20250100

Published online: June 13, 2025.

 

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Total access: 267


J. Braz. Chem. Soc. 2025

Optimization of Biochar Synthesis from Cosmetic Industry Sludge for Enhanced Removal of Enrofloxacin

Antonio Machado Netto ; José Pedro R. Ferreira ; Keivison A. Monteiro ; Caio S. de Lima ; Jodieh O. S. Varejão ;
Eduardo Vinicius V. Varejão ; Natália S. Renato ; Renata P. L. Moreira

Biochar production from industrial sludge and cosmetic waste promotes the circular economy while removing contaminants from aqueous effluents.

https://dx.doi.org/10.21577/0103-5053.20250097

Published online: June 9, 2025.

 

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Total access: 360


J. Braz. Chem. Soc. 2025

Developing a Superkeggin-Type Polyoxovanadate to Assemble Homogeneous Films Based on Poly(vinyl chloride): A Combined Experimental and Theoretical Study

Bianca R. Brito ; Lucas G. Fachini ; Kahoana Postal ; Rúbia Camila R. Bottini ; Eduardo L. de Sá ; Sônia F. Zawadzki ; Giovana G. Nunes

A mixed valence polyoxovanadate and poly(vinyl chloride) forms green homogeneous films, studied by molecular docking.

https://dx.doi.org/10.21577/0103-5053.20250099

Published online: June 6, 2025.

 

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Total access: 309


Review J. Braz. Chem. Soc. 2025

New Advancements in Production, Purification, and Current Biological Activities of Violacein

Nelson Durán ; Wagner J. Fávaro ; Symone C. de Castro ; Gerson Nakazato ; Guillermo R. Castro ; Giselle Z. Justo ;
Ljubica Tasic

Violacein is a natural purple pigment that shows a wide range of bioactivity. The current review addresses different aspects of violacein, such as its production, purification, and biological activities, aiming to enhance its viability for technological applications.

https://dx.doi.org/10.21577/0103-5053.20250096

Published online: June 4, 2025.

 

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Full Paper J. Braz. Chem. Soc. 2025

Unveiling the Absolute Configuration of Diarylheptanoid Hirsutanonol: Going Beyond Optical Rotations

Arthur R. de Souza; Julia C. F. Ximenes; Caio V. N. Borges; Samir F. A. Cavalcante; Marcio Fronza; Thiago Barth; Shaft C. Pinto ; Fernando M. Santos Jr.

In this paper, the absolute configuration of (+)-hirsutanonol was unambiguously determined by means of optical rotation (OR) and electronic circular dichroism (ECD) chiroptical properties supported by quantum chemical calculations.

https://dx.doi.org/10.21577/0103-5053.20250095

Published online: June 3, 2025.

 

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Total access: 338


J. Braz. Chem. Soc. 2025

High Selective N-Acylhydrazones Silver(I) Complexes against Tuberculosis

Paulo Victor P. dos Santos; Nícolas Glanzmann; Adilson D. da Silva; Fernando R. Pavan; Christian S. C. Canales; Cesar A. Roque‑Borda; Pedro P. Corbi; Douglas H. Pereira; Kaíque A. D'Oliveira; Alexandre Cuin

Biological results of N-acylhydrazones from isoniazid and aldehydes showed silver(I) complexes with N-acylhydrazones as promising antitubercular drugs with high selectivity index.

https://dx.doi.org/10.21577/0103-5053.20250093

Published online: June 2, 2025.

 

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Total access: 354


J. Braz. Chem. Soc. 2025

Synthesis and Characterization of Graphene Applied to Energy Storage: A Statistical and Electrochemical Study of the Effect of High-Energy Milling on the Efficiency of the Material

Emilly C. Silva; Aluísio C. Pinto; Charlie G. Gomes; Raimundo R. Passos; Consuelo A. da Frota; Leandro A. Pocrifka

This figure represents the physical grinding modifications performed on graphite, using parameters obtained through multivariate analysis, resulting in capacitive graphene and electrochemical tests.

https://dx.doi.org/10.21577/0103-5053.20250092

Published online: May 28, 2025.

 

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Total access: 313


J. Braz. Chem. Soc. 2025

Technological Reconstruction and Chemical Similarities of Fine Earthenware from the 18th and 19th Centuries Using EDXRF (State of Piauí, Brazil)

Neiva Maria N. Oliveira; Benedito B. Farias Filho ; Christian Dário S. de Melo; Wilkins O. de Barros

This study investigates the technological reconstruction and chemical composition of fine earthenware from the 18th and 19th centuries in Piauí.

https://dx.doi.org/10.21577/0103-5053.20250091

Published online: May 27, 2025.

 

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J. Braz. Chem. Soc. 2025

Polycyclic Aromatic Hydrocarbon Contamination of Personal Protective Equipment of Brazilian Firefighters During Training Exercise

Aline M. Arouca ; Victor Emmanuel D. Aleixo ; Maurício L. Vieira ; Márcio Talhavini ; Ingrid T. Weber

Quantification of polycyclic aromatic hydrocarbons (PAHs) deposited on the personal protective equipment (PPE) of firefighters, during firefighting training.

https://dx.doi.org/10.21577/0103-5053.20250089

Published online: May 26, 2025.

 

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Total access: 334


J. Braz. Chem. Soc. 2025

Monitoring N-Nitrosamines in Cosmetic Thermal Waters: Analytical Method Development, Validation, and Market Analysis in Brazil

Maria Fernanda A. V. Matos; Gabriela F. P. de Souza; Anna Paula R. de Queiroga; Airton G. Salles Jr.; Susanne Rath

N-Nitrosamines in cosmetic thermal waters: market analysis and analytical method.

https://dx.doi.org/10.21577/0103-5053.20250088

Published online: May 26, 2025.

 

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Total access: 332

Online version ISSN 1678-4790 Printed version ISSN 0103-5053
Journal of the Brazilian Chemical Society
JBCS Editorial and Publishing Office
University of Campinas - UNICAMP
13083-970 Campinas-SP, Brazil

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