Marcos V. V. LyrioI; Danieli G. DebonaI; Nathália dos S. ConceiçãoI; Francisco M. GomesI; Alan R. PereiraI; Henrique A. FrizzeraI; Jessica L. ReisI; Taila T. GreccoI; Bruna C. PiresI; Valdemar Lacerda Jr.I; Eustaquio V. R. CastroI; Marsele M. IsidoroII; Paulo R. FilgueirasI; Wanderson RomãoI,II,*
HPLC-DAD, infrared spectroscopy, UV-VIS, and mass spectrometry were applied in the study of synthetic dyes, aiming to indicate the advantages and applicability of each technique.
Marilda Chiarello; Luana C. Crocoli; Vinícius B. Molon; Sidnei Moura*
Pesticide residues have been detected in processed grape-based products. LC-HRMS is an important, sensitive and reliable analysis tool. Seven compounds were detected, including carbendazim, banned in August 2022 in Brazil.
Ingrid Ruanna dos Santos FeitosaI; Nívea Cristina Guedes MuninI,II; Bianca Veloso GoulartI; Cassiana Carolina MontagnerI,*
The persistence of pesticides in soil after application is dependent of the type of the soil, the physical-chemistry properties of the compounds and the management of crop.
Jamerson H. F. da SilvaI; André GalembeckI; Mônica F. BelianII,*; Wagner E. SilvaII; Jandyson M. SantosII; Jacinto da Costa Silva NetoIII; Jaciana S. AguiarIV; Teresinha GonçalvesIV
The synthesis, characterization, and biological activity of a novel dinuclear platinum complex. Tumor weight inhibition percentage of dinuclear complex was 66%. The results of the hematological, biochemical, and histopathological tests showed that the dinuclear complex had fewer side effects and less oxidative damages to the tested biological model.
Alexandre de F. CobreI; Beatriz BögerI; Mariana M. FachiI; Carlos A. EhrenfriedI; Dile P. StremelII; Eduardo B. De MeloIII; Fernanda S. ToninIV; Roberto PontaroloI
Flowchart for performing virtual screening assays, molecular docking, pharmacokinetic and toxicity analysis.
Ana Laura de Cabral SobreiraI; Janderson Barbosa Leite de AlbuquerqueI; Wallace Amorim Machado de QueirozI; Pedro Isaac Vanderlei de SouzaII; Diégina Araújo FernandesIII; Maria de Fátima Vanderlei de SouzaI,IV,*
Analysis of the chemical and biological profile of alkaloids identified from species of the Malvaceae sensu lato family as alternative sources for new drugs.
Antonio A. A. Chepluki*; Tiago E. A. Frizon; Igor E. de Carvalho
This article presents the procedures for the construction of a spin coater with a vacuum substrate fastening system, using an Arduino microcontroller, 3D printing and reuse of materials.
Habdias A. Silva-NetoI; Gerson F. Duarte-JuniorI; Gabriela Silvério BazílioII; Juliana Alves Parente-RochaII; Diego B. ColugnatiII; Clayton L. BorgesII; Wendell K. T. ColtroI,III,*
This study describes the fabrication of a low-cost magnetic separator holder combining 3D printing and compact neodymium blocks for allowing magnetic extraction and purification of RNA from samples collected by nasopharyngeal swab from patients infected by SARS-CoV-2.
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Bruna Costa CerqueiraI; Gerônimo Lopes LimaI; Artur José Santos MascarenhasII; Heloysa Martins Carvalho AndradeII; Rodrigo De PaulaI,III,*
A simple experiment using easy access and low-cost material for teaching chemistry. A column chromatography for food dye separation is a trigger for a wide discussion for teaching Chemistry.
Wladmir Teodoro da Silva; Carlos A. L. Filgueiras*
Roman blown glass flask of the first century, from the old collections of the National Museum of Rio de Janeiro. It is impressive to compare this flask, about 500 mL in capacity, with modern laboratory flasks.
On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
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