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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...
Viviane G. A. Pires; Márcia R. de Moura*
Nanoemulsions of melaleuca, lemon and copaiba were incorporated into sodium alginate films to investigate the water vapor permeability of the same.
Blanca L. Martínez-VargasI; Jesús A. Díaz-RealI; Yolanda Reyes-VidalI; J. L. Rodríguez-LópezII; Raúl Ortega-BorgesI; Luis Ortiz-FradeI,*
The photocatalytic process in the degradation of anthracene vs photolysis was explored, the 9,10-anthraquinone is a main product the photolysis of anthracene in ethanol:water and acetone:water. Meanwhile ZnO transformed anthracene to benzoic acid in ethanol:water pH 12.
Elaine Angélica Mundim RibeiroI; Fúlvio Rafael Bento de SouzaI; Fábio Augusto do AmaralI; Guimes Rodrigues FilhoI,*,#; Raquel Maria Ferreira de SousaI; Júlia Graciele VieiraI; Talita Ferreira de Rezende CostaI; José Pedro Thompson JuniorI; Rosana Maria Nascimento de AssunçãoII; Sheila Cristina CanobreI
The use of cationic hemicelluloses, from corn husk, in association with tannin as auxiliary coagulation in wastewater treatment for industrial laundries produced turbidity removal was greater than 95% independent of the pH.
Alessandro de C. CruzI,*; Eunice M. SuenagaII; Eduardo AbibIII; José PedrazzoliI
On-line solid phase extraction steps programming synchronized with chromatographic run time (total analysis time 3 min per sample), allowing 480 samples to be analyzed per day and high-throughput in bioanalysis.
Júnior O. Chagas; Hércules G. L. de Sousa; Isabela C. M. Cunha; Roberta E. S. Froes-Silva; Gilmare A. da Silva*; Fabiana A. Lobo
Multivariate optimization for polymeric microparticle digestion.
Flávio Arantes CamposI,*; Ana Carolina Ribeiro AguiarI; Victor Souza MedeirosI; Adriene de Cássia BranquinhoI; Franco Cesar Belchior da SilvaI; Rômulo Davi Albuquerque AndradeII; Andréa Rodrigues ChavesIII
Atrazine is an agrochemical widely used in the country and has high persistence in water courses. Thereby, becomes of great interest discuss methods that may leads to its degradation.
Aiêrta C. C. da SilvaI; Francisco G. BarbosaI,*; Jair MafezoliI; Maria da C. F. de OliveiraI; Terezinha F. de OliveiraII
HS-SPME was used to distinguish three chemotypes of Lippia alba and compared with the traditional hydrodistillation method.
Mohammad Ali Ghasemzadeh*
Nano-Fe3O4 encapsulated-silica particles bearing sulfonic acid as an efficient, worthwhile and recyclable catalyst has been used for the one-pot synthesis of tricarboxamides under solvent-free conditions.
Valéria J. GomesI,*; Jorge L. ColodetteII
The highest values for kappa removal were found using low pH and low temperatures, indicating maximum efficiency due to the small ozone decomposition on these conditions.
Renan S. Fernandes; Marcia R. de Moura; Fauze A. Aouada*
This image shows the methodology used in the preparation and synthesis of the nanocomposite hydrogels formed from sodium alginate polysaccharide and different nanofillers crosslinked with Ca2+ or Al3+ ions.
Selene I. Rivera-HernándezI; Giaan A. Álvarez-RomeroI,*; Silvia Corona-AvendañoII; M. Elena Páez-HernándezI; Carlos A. Galán-VidalI; Mario Romero-RomoII; María Teresa Ramírez-SilvaIII
A simple second type Ag/AgIbuprofenate electrode for the potentiometric quantification of ibuprofen in commercial samples is proposed. Easy construction, low cost involved, and rapid electrochemical response are some of the advantages of this analytical strategy.
Giovanni K. ZorziI,#, Roselena S. SchuhI,#, Angela M. de CamposII; Edison L. S. CarvalhoIII; Marilise B. RottIV; Helder F. TeixeiraI,*,#
This manuscript reviews some of the most important biomaterials employed in the manufacture of nanometric carriers for ocular gene therapy.
Daniela V. CortezI; Heizir F. de CastroI; Grazielle S. S. AndradeII,*
Mycelium-bound lipase can be used directly as suspended free cells or immobilized within biomass support particles as whole cells biocatalyst. In the latter, cells can be immobilized in situ or extra situ using different support materials avoiding the purification step.
Jéssica Tiago TozettoI; Andressa Tiago TozettoI; Bernardo Teixeira HoshinoI; Carla Regina AndrighettiI; Elton Brito RibeiroI; Larissa CavalheiroII; Stela Regina FerrariniI,*
Pomegranate (Punica granatum L.) peel extract was developed by maceration method. The extract was identified and characterized and incorporated into semisolid emulsion. Finally the stability and antioxidant activity of the emulsions were evaluated.
João C. PaivaI; Carla MoraisI; Marcelo P. A. RosaII; Luciano MoreiraIII; Marcelo L. EichlerIV,*
A study on the Theory of Planned Behavior about the intention of chemistry teachers to integrate digital media in their classes
Karla S. FeuI,*; Francisco F. de AssisI; Siddavatam NagendraI,II; Ronaldo A. PilliI
The figure shows the laureated scientists awarded with the Nobel Prize in Chemistry 2016. Copyright: © Nobel Media AB 2016.
On-line version ISSN 1678-7064 Printed version ISSN 0100-4042
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