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Autores: A partir do fascículo 39/9 a revista Química Nova adotou a licença CC-BY. Mais informações a respeito dessa licença podem ser obtidas aqui.

vol. 41, No. 4, 2018, p. 367-475

 

Submission procedures for OPEN ACCESS

The Board of Directors of the Sociedade Brasileira de Química-SBQ (publisher of the Química Nova-QN) decided that QN will adopt the full open access format in which authors are required to cover part of the publication costs for their articles. See more...



Artigo de Capa
Quim. Nova 2018, 41(4), 417-428

Correlações geoquímicas entre amostras de petróleo da bacia potiguar e definição de suas possíveis rochas geradoras

Jeferson Cavalcante AlvesI; Rennan Geovanny Oliveira AraujoI,II,*,#; Eliane Soares de SouzaIII; Sarah Adriana Rocha SoaresI; José Roberto CerqueiraI; Karina Santos GarciaI; Antonio Fernando de Souza QueirozI; Maria Goreti Rodrigues ValeIV; Aline Rocha BorgesV

The oil is made up of organic and inorganic components, in which identified and quantified through chromatographic analytical techniques and atomic spectrometry, which assists in the evaluation of the type of its generating rock and its depositional paleoenvironment.

http://dx.doi.org/10.21577/0100-4042.20170195

Publicado online: fevereiro 1, 2018
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Artigos Quim. Nova 2018, 41(4), 367-374

 

Polímero biodegradável antimicrobiano através da aditivação com compostos à base de zinco

Ana P. CapelezzoI,*,#; Laura C. MohrI,#; Francieli DalcantonI,×; Carolina R. D. M. BarretaI,#; Maria A. P. M. MartinsII; Márcio A. FioriI,#,×; Josiane M. M. de MelloI,#,×


ZnO NPs and Zn MCs were incorporate to Ecoflex® by the extrusion process, obtaining the biodegradable antimicrobial polymer. This property was proved by the death curve test, with better results to the Zn MCs + Ecoflex®.

Publicado online: fevereiro 1, 2018
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Quim. Nova 2018, 41(4), 375-379

 

Insecticidal activity of dienamides on cabbage caterpillar and beneficial insects

Mayara Cristina LopesI; Elson Santiago AlvarengaIII,*; Alex Ramos AguiarIII; Izailda Barbosa dos SantosII; Gerson Adriano Silva,IV; Lucas de Paula ArcanjoII; Marcelo Coutinho PicançoII


The dienamides synthesized were evaluated against the insect pest Ascia monuste, the natural enemy, and the pollinator. The dienamides were toxic to the pest and were selective in favor of the natural enemy and pollinator.

http://dx.doi.org/10.21577/0100-4042.20170192

Publicado online: fevereiro 1, 2018
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Quim. Nova 2018, 41(4), 380-385

 

Hidrogéis nanocompósitos de polissacarídeo com zeólita: avaliação do processo de adsorção do pesticida paraquat

Diego H. O. BarbosaI,II,#; Marcia R. de MouraII,#; Fauze A. AouadaII,*,#


Water contamination cycle caused by paraquat pesticide, which can be prevented by using nanocomposite hydrogels based on polysaccharide and zeolite as proven by the UV-Vis spectrum of paraquat solution indicating their sorption into absorbent materials.

http://dx.doi.org/10.21577/0100-4042.20170188

Publicado online: fevereiro 1, 2018
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Quim. Nova 2018, 41(4), 386-393

 

Evaluating the accumulation trend of L-DOPA in dark-germinated seeds and suspension cultures of Phaseolus vulgaris L. by an efficient UV-spectrophotometric method

Samira Rahmani-NezhadI; Shima DianatI; Mina SaeediI,II; Maliheh Barazandeh TehraniIII; Adel GhadiriIV; Abbas HadjiakhoondiI,V,*


A user-friendly and economical UV-spectrophotometric method was described to determine L-DOPA content in extracts from 33 biotypes of Phaseolus vulgaris L. The method is based on the nitrosation of L-DOPA to form a yellow solution and then formation of a red solution by adding base which is measurable at 470 nm.

http://dx.doi.org/10.21577/0100-4042.20170193

Publicado online: fevereiro 1, 2018
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Quim. Nova 2018, 41(4), 394-399

 

Avaliação do desempenho de uma fase sensora de poliuretano por meio da energia de gibbs de solvatação e espectroscopia de infravermelho para determinação de tolueno em água

Juliana D. C. SouzaI,#; Rogerio V. de Azevedo JúniorI; Glória M. VinhasII; Nathalia B. D. LimaI; Andréa M. S. S. BritoIII,*


We advance a computational strategy for the choice of sensing phases based on polymer matrices, for organic contaminants in water. This strategy was employed to evaluate a novel sensing phase of polyurethane, which was effective in determining toluene contaminant in water samples.

http://dx.doi.org/10.21577/0100-4042.20170194

Publicado online: fevereiro 1, 2018
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Quim. Nova 2018, 41(4), 400-404

 

Chromatographic investigation of ruthenium nitrosyl complex: no interconversion and reactions with biological reductants

Francisco O. N. da SilvaI,*; Dayana P. S. PenhaI; Ana E. V. de AlencarI; Daniel de L. PontesI; Ana C. F. de B. PontesI; Eduardo H. S. SousaII; Luiz G. F. LopesII


The results showed that HPLC can be used as a powerful technique to monitor and characterize more complex reactions involving metal complexes such as nitrite/nitrosyl interconversion in ruthenium bipyridine complexes.

http://dx.doi.org/10.21577/0100-4042.20170181

Publicado online: janeiro 18, 2018
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Quim. Nova 2018, 41(4), 405-411

 

Phenolic derivatives and antioxidant activity of polar extracts from Bauhinia pulchella

Adonias Almeida CarvalhoI,II; Lucivania Rodrigues dos SantosII; Ruth Raquel Soares de FariasII; Mariana Helena ChavesII,*; Chistiane Mendes FeitosaII; Gerardo Magela Vieira JúniorII; Mônica Regina Silva de AraújoII,V; Paulo Michel Pinheiro FerreiraIII; Claudia do Ó PessoaIV


EEF and EAF showed similar profiles by HPLC, with the presence of three flavonoids: myricitrin (1), quercitrin (2) and afzelin (3). In assay of TBARS and ABTS radical cation, EAF showed antioxidant potential higher than the EEF.

http://dx.doi.org/10.21577/0100-4042.20170183

Publicado online: janeiro 18, 2018
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Quim. Nova 2018, 41(4), 412-416

 

Synthesis, larvicidal and acetylcholinesterase inhibitory activities of carvacrol/thymol and derivatives

Bruna M. de MesquitaI; Patricia G. G. do NascimentoI; Luciana G. S. SouzaI; Iolanda F. de FariasI; Romézio A. C. da SilvaI; Telma L. G. de LemosI,*; Francisco J. Q. MonteI; Irvila R. OliveiraI; Maria T. S. TrevisanI; Horlando C. da SilvaI; Gilvandete M. P. SantiagoII


Nine derivatives were prepared from carvacrol/thymol. The structures were confirmed by MS, IR and NMR, and acetylcholinesterase and larvicidal tests were performed.

http://dx.doi.org/10.21577/0100-4042.20170189

Publicado online: fevereiro 1, 2018
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Quim. Nova 2018, 41(4), 429-433

 

Utility of functionalized agarose nanoparticles in hydrolyzing lactose in batch reactors for dairy industries

Shakeel Ahmed AnsariI,*; Syed Ismail AhmadII; Mohammad Alam JafriI; Muhammad Imran NaseerI; Rukhsana SatarIII


Immobilization of β-galactosidase on galactose modified ANPs for hydrolyzing lactose.

http://dx.doi.org/10.21577/0100-4042.20170190

Publicado online: fevereiro 1, 2018
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Revisão Quim. Nova 2018, 41(4), 434-445

 

Aplicaciones biomédicas de poliuretanos

Yomaira L. Uscategui; Luis E. Díaz; Manuel F. Valero*


Medical applications of polyurethanes.

http://dx.doi.org/10.21577/0100-4042.20170191

Publicado online: fevereiro 1, 2018
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Nota Técnica Quim. Nova 2018, 41(4), 446-450

 

Glasspanacea: um software eficiente para a formulação de materiais cerâmicos

Renato Luiz SiqueiraI,*; José Henrique AlanoII; Oscar PeitlI; Edgar Dutra ZanottoI


GlassPanacea is an efficient software tool for ceramic materials formulation, providing the users with flexibility in the selection of chemicals, as well as speed and accuracy in the calculation of their relative proportions in a batch. The software is freely available from http://www.certev.ufscar.br/research-1/glasspanacea-glass-and-ceramic-formulation-software.

http://dx.doi.org/10.21577/0100-4042.20170196

Publicado online: fevereiro 1, 2018
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Educação Quim. Nova 2018, 41(4), 451-456

 

Determinação de sódio em cachaça por espectrometria de emissão atômica: efeito das propriedades físico-quimicas da solução

Junia Graziele PereiraI; Luiz Antonio RamosI; Éder Tadeu Gomes CavalheiroI,*; Joaquim de Araújo NóbregaII


Analytical calibration curves for sodium ions in flame atomic emission spectrometry: effect of solvent composition.

http://dx.doi.org/10.21577/0100-4042.20170158

Publicado online: novembro 28, 2017
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Quim. Nova 2018, 41(4), 457-467

 

Por que escolhi fazer um curso de licenciatura? perfil e motivação dos ingressantes da Unesp

Amadeu Moura BegoI,*; Tarso Bortolucci FerrariII


The findings show that the majority of undergraduate students in chemistry at the São Paulo State University take the course for reasons that are essentially motivated by intrinsic factors.

http://dx.doi.org/10.21577/0100-4042.20170159

Publicado online: novembro 28, 2017
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Quim. Nova 2018, 41(4), 468-475

 

A metodologia de resolução de problemas: uma experiência para o estudo das ligações químicas

Franciane S. C. de Lima; Leliz T. Arenas; Camila G. Passos*


This figure represents the interrelationship between different aspects that can be analyzed on the teacher formation from this experience.

http://dx.doi.org/10.21577/0100-4042.20170179

Publicado online: dezembro 20, 2017
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Assuntos Gerais Quim. Nova 2018, 41(4), 476-473

 

Perspectivas da química medicinal para o século XXI: desafios e oportunidades

Carolina Horta AndradeI; Arthur E. KümmerleII; Rafael V. C. GuidoIII,*


In the 21st century, medicinal chemists will face many challenges to improve the quality of life of populations. The challenges consist of emerging infectious and non-communicable diseases. To combat them, innovative technologies shall be developed.

http://dx.doi.org/10.21577/0100-4042.20170182

Publicado online: janeiro 18, 2018
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