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3:54, sex nov 24








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. 38, No. 8, 2015, p. 1009-1138

 

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 2015, 38(8), 1075-1079

Staphylococcus aureus biofilm formation on polypyrrole: an electrical overview

Erlon R. CordeiroI,II; Antonio W. C. FernandesIII; Alessandra F. C. PereiraI; Mateus M. da CostaIII; Marcio L. F. NascimentoII; Helinando P. de OliveiraI,*

The strong interaction of S. aureus and polypyrrole inhibits bacterial growth in culture media and contributes to the progressive deposition of biofilms on polymeric support surfaces, thus allowing for the fast detection of bacteria.

http://dx.doi.org/10.5935/0100-4042.20150112

Publicado online: julho 2, 2015
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Artigos Quim. Nova 2015, 38(8), 1009-1013

 

Oxidación electroquímica de lambdacialotrina sobre electrodos de PbO2-Bi

Leonardo Cifuentes; Dorelys Flores; Lorean Madriz; Ronald Vargas*


The electrochemical oxidation of an insecticide-lambdacyhalotrin-in an aqueous solution of a triton X-100 surfactant on a PbO2-Bi electrode has been evaluated. The results showed high levels of degradation that proceeded through the Langmuir-Hinshelwood kinetic mechanism.

http://dx.doi.org/10.5935/0100-4042.20150107

Publicado online: junho 26, 2015
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Quim. Nova 2015, 38(8), 1014-1020

 

Hydrolytic degradation behavior of PLLA nanocomposites reinforced with modified cellulose nanocrystals

Everton Luiz de PaulaI,*; Valdir ManoII; Eliana Aparecida Rezende DuekIII; Fabiano Vargas PereiraIV


Bionanocomposites derived from poly(L-Lactide) were reinforced with chemically modified cellulose nanocrystals (m-CNCs). The effects of these modified cellulose nanoparticles on the mechanical and hydrolytic degradation behavior of the polylactide were studied.

http://dx.doi.org/10.5935/0100-4042.20150108

Publicado online: junho 26, 2015
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Quim. Nova 2015, 38(8), 1021-1026

 

Estudio teórico de la reactividad química del carbón activo

Cristian J. Guerra*; Jesús M. López; Said F. Figueredo; Adolfo E. Muñoz


Conceptual discrete Fourier transform (DFT) was used to understand the reactivity of activated carbon. Using this method, it was observed that activated carbon has electrophilic and nucleophilic sites, which allows it to be used as an adsorbent material for a variety of molecules.

http://dx.doi.org/10.5935/0100-4042.20150116

Publicado online: julho 6, 2015
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Quim. Nova 2015, 38(8), 1027-1030

 

Direct infusion esi-ms applied in the detection of byproducts due to reductive degradation of acetamiprid by zero-valent iron

Jean C. CruzI; Marina F. ReisI; Marília M. SalvadorI; Marciano F. AlmeidaI; Rodinei AugustiII; Renata P. Lopes*,I


Acetamiprid was fully degraded by Fe but not mineralized. The byproducts were characterized by direct infusion ESI-MS.

http://dx.doi.org/10.5935/0100-4042.20150122

Publicado online: julho 22, 2015
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Quim. Nova 2015, 38(8), 1031-1036

 

A novel polyacrylamide-based hydrogel crosslinked with cellulose acetate and prepared by precipitation polymerization

Rubén O. Muñoz-GarcíaI; María E. HernándezII,*; Genaro G. OrtizIII; Víctor V. A. FernándezIV; Martín R. ArellanoII; Juan C. Sánchez-DíazIIrnández; Genaro G. Ortiz; Víctor V. A. Fernández; Martín R. Arellano; Juan C. Sánchez-Díaz


Cellulose acetate (CA) reacts with acrylamide by a free radical reaction to produce crosslinked CA-poliacrylamide (CA-PAAm) hydrogels without the use of N,N'-methylenebisacrylamide as a crosslinker. These hydrogels exhibit low swelling capacity and high compression moduli, making them suitable for cartilage replacement applications.

http://dx.doi.org/10.5935/0100-4042.20150119

Publicado online: julho 13, 2015
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Quim. Nova 2015, 38(8), 1037-1043

 

Utilização do compósito nanoestruturado SiO2/TiO2 na fotodegradação de corantes têxteis com luz solar natural

Camila S. InagakiI; Andrea Eloisa da Silva ReisI; Nayara M. OliveiraI; Vitor H. PaschoalI; Ítalo O. MazaliII; Antonio A. S. AlfayaI,*


A SiO2/TiO2 nanostructured composite that was synthesized using the sol-gel method exhibited photocatalytic activity under natural sunlight.

http://dx.doi.org/10.5935/0100-4042.20150105

Publicado online: junho 22, 2015
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Quim. Nova 2015, 38(8), 1044-1052

 

Síntese de N-glicosilsulfonamidas derivadas de d-glicose e N-acetilglicosamina

Lucas L. FrancoI; Mário C. BrandãoII; José D. S. FilhoI; Ricardo J. AlvesII,*


A new procedure for the preparation of β-N-glycosylsulfonamides that avoids the anomerization of the intermediate glycosylamines was developed using their corresponding ammonium tosylate salts in the presence of trimethylamine.

http://dx.doi.org/10.5935/0100-4042.20150110

Publicado online: junho 26, 2015
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Quim. Nova 2015, 38(8), 1053-1062

 

Reação de condensação do glicerol com compostos carbonílicos. síntese, caracterização e aplicação em cristais líquidos

Jacqueline KautzI; Willian FeltrinI; Eric S. SalesI; Vera Lucia Eifler-LimaII; Aloir A. MerloI,*


Glycerol derivatives for functional materials.

http://dx.doi.org/10.5935/0100-4042.20150111

Publicado online: julho 2, 2015
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Quim. Nova 2015, 38(8), 1063-1067

 

Obtenção e caracterização de material híbrido entre sílica e ciclodextrinas

Raphaela V. Baracho; Lucas B. Carvalho; Jéssica M. Andrade; Adneia F. A. Venceslau; Denise A. Rocha; Luciana M. A. Pinto*


A schematic for the formation of organic/inorganic hybrid materials suggests that the action of the binding agent, citric acid, covalently links cyclodextrin to the silica surface.

http://dx.doi.org/10.5935/0100-4042.20150099

Publicado online: junho 12, 2015
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Quim. Nova 2015, 38(8), 1068-1074

 

Pyroligneous liquor produced from Acacia mearnsii de wild wood under controlled conditions as a renewable source of chemicals

Carolina M. FurtadoI; Aline dos Santos StolzI; Fernanda L. PintoI; Angela B. D. MouraI; Fernando Dal Pont MorissoI; Ana Paula PitareloII; Luiz Pereira RamosII; Carin von MühlenI; Izabel C. Riegel-VidottiI,*


Chromatographic characterization of the pyroligneous liquor of Acacia mearnsii de Wild: Black-wattle pyrolytic compounds as a source of chemicals of industrial interest, and a contribution to better process control in charcoal production.

http://dx.doi.org/10.5935/0100-4042.20150120

Publicado online: julho 13, 2015
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Revisão Quim. Nova 2015, 38(8), 1080-1092

 

Recentes aplicações em síntese orgânica de catálise foto redox mediada por luz visível

Angelina M. de Almeida; Mauro V. de Almeida; Giovanni W. Amarante*


Photoredox catalysis can excite organic compounds from visible light, thereby providing alternative mechanistic pathways for the formation of chemical bonds. This approach is especially relevant in green and sustainable chemistry.

http://dx.doi.org/10.5935/0100-4042.20150121

Publicado online: julho 13, 2015
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Quim. Nova 2015, 38(8), 1093-1106

 

Preparo de amostras assistido por campo elétrico: fundamentos, avanços, aplicações e tendências

Camila D. M. CamposI; Richard P. S. de CamposI; José A. Fracassi da SilvaI; Dosil P. JesusI; Ricardo M. OrlandoII,*


This review describes the fundamentals, advances, applications, and perspectives of using electric fields to enhance the speed and efficiency of sample preparation techniques.

http://dx.doi.org/10.5935/0100-4042.20150130

Publicado online: julho 23, 2015
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Nota Técnica Quim. Nova 2015, 38(8), 1107-1111

 

Determinação espectrofotométrica de metildopa em ensaio de dissolução de comprimidos utilizando extrato de rabanete como fonte de peroxidase

Natielle Gianine Bueno; Airton Vicente Pereira*


Extraction of peroxidase from radish and reaction with methyldopa.

http://dx.doi.org/10.5935/0100-4042.20150091

Publicado online: maio 21, 2015
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Quim. Nova 2015, 38(8), 1112-1116

 

Comparação e construção de reatores de "Mild" e "Hard Anodisation" para fabricação de alumina anódica porosa

Uanderson M. Garcia; Letícia F. Mendes; Janaina S. Santos; Francisco Trivinho-Strixino*


A comparison of the benefits of anodization reactors shows that the hard anodization reactor is more productive and the mild anodization reactor is cheaper with a better cost-benefit ratio.

http://dx.doi.org/10.5935/0100-4042.20150100

Publicado online: junho 12, 2015
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Educação Quim. Nova 2015, 38(8), 1117-1124

 

Interações fármaco-receptor: aplicações de técnicas computacionais em aula prática sobre a evolução dos inibidores da enzima conversora de angiotensina

Maurício Temotheo TavaresI; Marina Candido PrimiI; Michelle Carneiro PolliII; Elizabeth Igne FerreiraI; Roberto Parise-FilhoI,*


Drug-Receptor interactions: how to teach it?

http://dx.doi.org/10.5935/0100-4042.20150113

Publicado online: julho 2, 2015
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Quim. Nova 2015, 38(8), 1125-1131

 

Síntese de ácidos cumarino-3-carboxílicos e sua aplicação na síntese total da aiapina, cumarina e umbeliferona#

Silvio CunhaI,II,*; Carlos Eduardo Martins IunesI,II; Caio Costa OliveiraI,II; Lourenço Luis Botelho de SantanaI,II


Synthesis of 3-coumarin-carboxylic acids via one-pot cyclization between salyciladehydes and Meldrum's acid in water and their application in the total synthesis of ayapin, coumarin, and umbeliferone.

http://dx.doi.org/10.5935/0100-4042.20150096

Publicado online: maio 29, 2015
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Assuntos Gerais Quim. Nova 2015, 38(8), 1132-1138

 

Buscas de informações tecnológicas com base em dados de patentes: estudo de caso dos líquidos iônicos no Brasil

Marcelo Gomes SpezialiI,*; Rubén Dario SinisterraII


Recent patent analysis has enabled to build an updated Technological Road Map. An assortment of ionic liquids technologies in Brazil was used as an example of the functionality of this technique. Patent Landscape used in conjunction with other indicators can be a useful tool for decision makers, scientists, and even investors when scientific trends, breakthroughs, or milestones are investigated.

http://dx.doi.org/10.5935/0100-4042.20150126

Publicado online: julho 22, 2015
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