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6:42, sáb nov 23

Acesso Aberto/TP




EDIÇÃO ATUAL vol. 46, No. 3, 2023



Artigo de Capa
Quim. Nova 2023, 46(3), 229-235

Simulation of the diffusion process of NaCL and KCl in olive pulp using the finite element method

Marco A. J. ClementeI; Heloisa H. P. SilvaI; Nathan F. SilvaI; Julia W. CamposI; Eduardo G. de SousaI; Hágata C. SilvaI; Ana C. G. MantovaniII; Karina B. AngilelliI; Dionisio BorsatoI,*

The olive brining process and the influence of the film formed on the surface were simulated by the finite element method.

http://dx.doi.org/10.21577/0100-4042.20230005

Publicado online: janeiro 9, 2023
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Total access: 616

Artigo Quim. Nova 2023, 46(3), 236-240

 

Evaluation of antimicrobial sensitivity to tetracycline exposed to non-thermal plasma

Anelise L. V. CubasI; Ana Regina de A. DutraI; Thiago C. AlvesII; Ritanara T. BianchetI; Adriano A. RamboI; Nito A. DebacherIII,*


The degradation of tetracycline by non-thermal plasma was over 90% in 10 min and at this stage, the antimicrobial sensitivity test performed by disk diffusion showed no antibiotic activity.

http://dx.doi.org/10.21577/0100-4042.20230006

Publicado online: janeiro 9, 2023
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Total access: 547

Quim. Nova 2023, 46(3), 241-249

 

Caracterização de resíduos sólidos industriais por análise térmica: perspectivas de uso como material filtrante para águas residuárias

Roberta A. P. Beluco; Elias Y. Ionashiro; Núbia N. de Brito*


Wastewater Filter constructed with metallurgical residue, vermiculite and commercial synthetic blanket and the analysis used for the component characterization.

http://dx.doi.org/10.21577/0100-4042.20230007

Publicado online: janeiro 9, 2023
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Total access: 588

Quim. Nova 2023, 46(3), 250-256

 

Nanostructured curcumin with choline and geranic acid ionic liquid (CAGE-IL): potential for incorporation into pharmaceutical gel formulations

Marta M. D. C. VilaI,*; Rodrigo BoscariolI; Victor M. BalcãoI,II,*


A nanoemulsion of curcumin and choline and geranic acid ionic liquid (CAGE-IL) was prepared. This nanoemulsion was added to locust bean gum to obtain a gel. The samples were kept at 40 ± 2 °C, with 75 ± 5% relative humidity (HR), and were analyzed at 0 (24 h), 30, 60, 90, and 180 days.

http://dx.doi.org/10.21577/0100-4042.20230012

Publicado online: janeiro 17, 2023
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Total access: 566

Quim. Nova 2023, 46(3), 257-265

 

Separation performance of peg-linked calix[4]arene as stationary phase for capillary gas chromatography

Wei ZhangI; Zhiqiang CaiI,*; Wei LiI; Qiuchen HuangI; Ruonan ChenI; Yiwen LiII; Keyun JinII; Yi ZhaoII; Tao SunII


In this work, a new calixarene derivative (C4A-PEG-2PTSC) was introduced as gas chromatographic stationary phase, and its separation ability and retention behaviors for different types of analytes were investigated. Its excellent separation performance proves its feasibility and good application prospect in the field of gas chromatography.

http://dx.doi.org/10.21577/0100-4042.20230013

Publicado online: janeiro 17, 2023
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Total access: 478

Revisão Quim. Nova 2023, 46(3), 266-272

 

Toxicity of zinc oxide to scleractinian corals and zooxanthellae: a brief review

Lúcio L. Freitas Neto; Breno P. Espósito*


Sunscreens may contain zinc oxide (ZnO) that is discharged in coral reef environments. There is a concern that this discharge of ZnO could be a threat to coral health, leading to bleaching or even death of corals and their algal symbionts.

http://dx.doi.org/10.21577/0100-4042.20230003

Publicado online: janeiro 9, 2023
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Total access: 759

Quim. Nova 2023, 46(3), 273-281

 

Effect of electric pulse treatment on microstructure, electrochemical and discharge properties of az61 anodes for Mg-air batteries

Jinchao ZouI,II; Tao ZhangI,II; Zhiquan HuangI,II; Chunjiang ZhaoI,II,*; Junpeng WangI,II


In this work, the effects of electric pulse treatment on the discharge and electrochemical properties of rolled and extruded AZ61 magnesium alloy as anode of Mg-air battery were studied.

http://dx.doi.org/10.21577/0100-4042.20230010

Publicado online: janeiro 12, 2023
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Total access: 523

Nota Técnica Quim. Nova 2023, 46(3), 282-289

 

Desenvolvimento de metodologia para determinação de canabinoides em produtos à base de cannabis para fins medicinais

Anna S. C. L. Dantas; Matheus N. de Souza; Patrícia C. de Lima; Maria E. D. Lima; Daniela S. Santana; Ricardo L. N. Maranho; André Colonese; Soraya M. Ochs; Mychelle A. Monteiro*


Medicinal products based on Cannabis are constantly increasing, therefore new methodologies to control the quality of these products are required. As a way to contribute to this field, this work presents a new methodology for this class of products.

http://dx.doi.org/10.21577/0100-4042.20230001

Publicado online: janeiro 9, 2023
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Total access: 766

Educação Quim. Nova 2023, 46(3), 290-297

 

Para quê se lê na educação em química? uma análise de publicações em periódicos de educação em ciências entre 2010 e 2021

Edjames Alves Santos; Wilmo Ernesto Francisco Junior*


Three main purposes for the reading in chemical education were identified from the analysis of papers published in journals of science education from 2010 to 2021.

http://dx.doi.org/10.21577/0100-4042.20170971

Publicado online: dezembro 14, 2022
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Total access: 638

Assuntos Gerais Quim. Nova 2023, 46(3), 298-306

 

A química na literatura de Primo Levi: aspectos filosóficos sobre experimentação, matéria e ofício químico

Rafaela ValeroI; Rafael C. MoriII,*; Luciana MassiIII


The literature of chemist Primo Levi is pervaded by philosophical considerations on experimentation, the relationship between man and matter, and chemistry as a profession.

http://dx.doi.org/10.21577/0100-4042.20230008

Publicado online: janeiro 12, 2023
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Total access: 670

On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
Química Nova
Publicações da Sociedade Brasileira de Química
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