Recent Papers - Machine Learning Special Issue
Reviews/Accounts - last 5 years
The image portrays the transition from environmental degradation to a sustainable future through circular economy practices. Earth, at the center, is divided between industrial pollution and a green landscape. Icons illustrate steps such as waste recycling and the synthesis of nanocomposites applied in energy and photocatalysis. The infinity symbol represents the continuous reuse of resources. Details are presented in the Full Paper Recycling of Solid and Electronic Waste for the Synthesis of CoFe2O4/γ-Fe2O3@SiO2/NaAlSi3O8 and Its Application as a Photocatalyst and Pseudocapacitor by Mayra N. Moura, Jenifer R. Almeida, Luma B. Magnago, Ana C. S. Campos, Edson L. D. Coelho, Talita M. de Oliveira, Tainara R. Neves, Sandra A. D. Ferreira, Fabielle C. Marques, Maria F. F. Lelis and Marcos B. J. G. Freitas on e-20250064.
Mayra N. Moura ; Jenifer R. Almeida
; Luma B. Magnago
; Ana C. S. Campos
; Edson L. D. Coelho
; Talita M. de Oliveira; Tainara R. Neves
; Sandra A. D. Ferreira
; Fabielle C. Marques
; Maria F. F. Lelis
; Marcos B. J. G. Freitas
The image portrays the transition from environmental degradation to a sustainable future through circular economy practices. Earth, at the center, is divided between industrial pollution and a green landscape. Icons illustrate steps such as waste recycling and the synthesis of nanocomposites applied in energy and photocatalysis. The infinity symbol represents the continuous reuse of resources. Details are presented in the Full Paper Recycling of Solid and Electronic Waste for the Synthesis of CoFe2O4/γ-Fe2O3@SiO2/NaAlSi3O8 and Its Application as a Photocatalyst and Pseudocapacitor by Mayra N. Moura, Jenifer R. Almeida, Luma B. Magnago, Ana C. S. Campos, Edson L. D. Coelho, Talita M. de Oliveira, Tainara R. Neves, Sandra A. D. Ferreira, Fabielle C. Marques, Maria F. F. Lelis and Marcos B. J. G. Freitas on e-20250064.
Ellen Jessica M. P. Campos ; Carin von Mühlen
The evolution of environmental analysis using stir bar sorptive extraction (SBSE) highlights its growing applications in detecting environmental contaminants. Recent advancements emphasize its use in analytical chemistry, particularly with gas chromatography, for enhanced sensitivity and precision. Current research reviews the latest applications and discusses present capabilities while forecasting future trends, such as the development of advanced sorptive materials and integration with innovative analytical platforms, paving the way for more sustainable and efficient environmental monitoring solutions.
Paula S. Pinto ; Rayane C. F. Silva; Rubens L. de Freitas Filho
; Luisa O. Santos
; Sarah D. Pereira
; Ana Paula C. Teixeira
Mesoporous carbon-based materials from biomass can be produced through various synthetic methods and have diverse environmental applications.
Marcela S. Zangirolami ; Alisson L. Figueiredo; Patrícia D. S. Santos; Paulo Henrique Março; Oscar O. Santos
An analysis of the relationship between fatty acids, chlorophyll, and RGB (red, blue, green) channels to identify the adulteration of extra virgin olive oil with soybean oil.
Henrique A. Cunha; Italo R. S. Vieira; Sabrina S. Teixeira; Daniela L. Martins; Marcos A. S. Costa
Novel functionalized microspheres with trimercaptotriazine (TMT) groups based on poly(styrene-co-divinylbenzene) (PS-DVB), with and without polystyrene brushes, were synthesized, characterized, and compared for TMT group content. The surface-initiated atom transfer radical polymerization (SI-ATRP) efficiency was compared under different surface initiations.
Jaqueline F. Silva; Luciana A. da Silva; Eloize S. Alves; Carmen T. Guedes; Patrícia M. de Souza; Suelen S. dos Santos ;
Jesui V. Visentainer; Grasiele S. Madrona; Diogo F. Rossoni; Mônica R. S. Scapim
Exploring the native fruits of Brazil, cagaita and mamacadela, to uncover their potential for diverse applications.
Abdullah R. Alanzi ; Bayan A. Alhaidhal; Raghad M. Aloatibi
A chemical feature-based pharmacophore model for cyclooxygenase-1 (COX-1) was developed to virtually screen nine commercial databases, yielding 807 potential hits. Following molecular docking, compounds with binding affinities between ‒11.27 and
‒10.47 kcal mol-1 were identified, and four were selected for further analysis through molecular dynamics (MD) simulations, indicating their potential as lead compounds to modulate COX-1 activity in neuroinflammation.
Kaíque A. D'Oliveira; Nícolas Glanzmann; Adilson D. da Silva; Carlos E. T. Bruzeguini; Marcos A. Ribeiro; Christian S. C. Canales;
Cesar A. Roque-Borda ; Fernando R. Pavan; Pedro P. Corbi; Norberto Masciocchi; Alexandre Cuin
Silver-dichloroquinoline complexes have been prepared and their spectroscopic, structural and mycobactericidal properties against Mycobacterium tuberculosis H37Rv (ATCC 27294) have been determined.
Noyala S. C. Fonseca; Alan S. dos Santos; Yiu Lau Lam; Luís A. M. Pontes; Roger T. F. Fréty ; Emerson A. Sales
A model molecule tetradecanoic (myristic) acid was pyrolyzed under inert atmosphere in the presence of fresh and equilibrium Fluidized Catalytic Cracking (FCC) catalysts, containing two different levels of rare earth. Deoxygenated molecules were produced, potential precursors for green gasoline, kerosene and diesel production.
Ana Beatriz S. Barbosa; Karen Karla F. de Sousa; Alessandra M. Balieiro; José Rogério A. Silva ; Fábio Alberto de Molfetta
Benzimidazole derivatives were identified as potential cruzain (Cz) inhibitors through molecular modelling.
Leandro C. da Silva; Renata Menger; Gabriel N. Fraga; Ariane Regina S. Rossin; Douglas C. Dragunski ; Renato Eising
Electrospun polyvinyl alcohol (PVA) nanofibrous mats with poly(amidoamine) (PAMAM) dendrimers and ibuprofen were developed and characterized. The nanofibrous mats demonstrated controlled drug release, which indicates their potential for advanced drug delivery applications.
Tianci Xu; Zhiguo Zhang; Siqi Deng; Xiaohui Du; Chunhua Xie; Hongling Li; Ming Bu
Design and synthesis of novel ergosterol peroxide derivatives as apoptotic inducers through mitochondria-related pathways.
Leonel Paccosonco-Sucapuca ; José Valeriano-Zapana
; Rodolfo Sanchez-Valencia
; Alex H. De La Cruz
;
Daniel Alvarez-Tolentino ; Roger Aguilar-Rojas
; Daniel Susanibar-Sandoval
Sources of toxic elements in particulate matter (PM10) and associated risks in educational centers.
Thais R. Bombarda ; Marina L. Fontes
; Rafael Sábio; Andréia Meneguin; Amanda Surur; Carla Raquel Fontana; Wilton Lustri;
Nathália Fregonezi; Flávia Nogueira; Hernane S. Barud
The synthesis of regenerated cellulose sponge with silver nanoparticles (RCS@AgNPs) biocomposites via a hydrothermal method demonstrated cytocompatibility with fibroblasts, absence of mutagenicity, and antimicrobial activity against both Gram-positive and Gram-negative bacteria.
Bruce S. Cardoso; Juliana G. M. Lima; Luciano Ribeiro; José R. Corrêa; Luciana M. Ramos
We report the synthesis of 5-arylidene barbituric acids under optimized conditions by condensation reaction between aromatic aldehydes and barbituric acid using ionic liquid catalyst. The arylidene barbiturates were tested for antimicrobial activity using two bacteria. Quantum chemical calculations were performed using the DFT/M062X/6-311++G(d,p) method to optimize the structure and principal component analysis indicated bioactivity.
Renan A. dos Santos ; Yeda M. B. de Almeida
; Samara A. C. Andrade
; Celso S. Caldas; Johnnatan D. de Freitas;
Clara A. C. B. Costa
This study investigates the effects of pH, ammonium sulfate supplementation, and refrigeration on higher alcohols production in sugarcane molasses at a microdistillery scale, highlighting their impact on isoamyl alcohol production (A), isobutanol production (B), and the A/B ratio.
Thalisson A. de Souza ; Alan F. Alves
; Nikole D. T. Lira
; Samuel P. Cibulski
; Luiz H. A. Pereira
; Lucas S. Abreu
;
Josean F. Tavares ; Marcus T. Scotti
; Marcelo S. da Silva
The present work describes the use of chemotaxonomy to identify chemical patterns of diterpenes along four Euphorbiaceae genera and it may guide future research in systematics, phytochemistry, and pharmacology fields.
Paloma E. Carvalho; Maiara R. Salvador; Bárbara G. R. Fernandes; Cleonice A. Souza; Maria A. G. Carneiro; Roberta M. Cachuba; Bolivar R. Amaro; Alan R. Oliveira; Caio C. S. Alves; Alessandra P. Carli; Jeferson G. da Silva; Ângelo M. L. Denadai ;
Sandra B. R. Castro
Synthesis, characterization, and evaluation of the immunomodulatory and anti-inflammatory activity of RhCl3, RhIII/beta cyclodextrin (βCD) and RhIII/hydroxypropyl-beta-cyclodextrin (HPβCD).
Mayra N. Moura ; Jenifer R. Almeida
; Luma B. Magnago
; Ana C. S. Campos
; Edson L. D. Coelho
; Talita M. de Oliveira; Tainara R. Neves
; Sandra A. D. Ferreira
; Fabielle C. Marques
; Maria F. F. Lelis
; Marcos B. J. G. Freitas
Mixed oxide synthesis from the recycling of notebook batteries and abrasive sludge for application in photocatalysis and pseudocapacitor.
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
Free access