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ISSN 0103-5053 Journal of the Brazilian Chemical Society...
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227 Chemistry at the Interface Faruk Nome and Larry Romsted
Editorial
Contents
Vol. 27, No. 2, February, 2016
ISSN 0103-5053JBCSJournal of the Brazilian Chemical Society
The modulation of reactivity by interfaces is of fundamental importance in chemical and biochemical systems. The pseudophase assumption coupled with ion selectivity at the interface are sufficient to reproduce (as well as predict) many of the effects of simple ionic detergent micelles on chemical reactivity. These concepts illuminatethe underlyingrelationships betweenchemical and photochemical reactivity and the structural and electrostatic properties of charged interfaces. Details are presented in the Review Modeling Chemical Reactivity in Ionic Detergent Micelles: a Review of Fundamentals by Frank H. Quina on page 267.
J. Braz. Chem. Soc.vi
Review239 Self-Assembled Networks and Molecular Gels Derived from
Long-Chain, Naturally-Occurring Fatty AcidsMohan Zhang and Richard G. Weiss
Graphical AbstractA systematic, critical summary is presented of correlations between
the structures of molecular gelators derived from long-chain, naturally-occurring fatty acids and the properties of their gels
Account229 Electrified Water: Liquid, Vapor and Aerosol
Thiago A. L. Burgo and Fernando Galembeck
Graphical AbstractWater with excess charge is the outcome of many different events
triggered by electric fields or by interfacial phenomena that produce non-electroneutral water, either liquid, solid or vapor, due to excess H+
or OH– concentration
256 Intended and Unintended Consequences and Applications of Unnatural Interfaces: Oligo p-Phenylene Ethynylene Electrolytes, Biological Cells and BiomacromoleculesHarry C. Pappas, Patrick L. Donabedian, Kirk S. Schanze and David G. Whitten
Graphical AbstractOligo phenylene ethynylenes are a class of conjugated polyelectrolyte
that have been found to exhibit diverse biosensing and biocidal properties
267 Modeling Chemical Reactivity in Ionic Detergent Micelles: a Review of FundamentalsFrank H. Quina
Graphical AbstractAn overview of our current understanding of the interplay between
micellar structure and electrostatics, selectivity, solubilization, and reactivity and the analysis of micellar effects on reactivity and equilibria
viiVol. 27, No. 2, 2016
285 Multifunctional Imidazole-Derived Polymeric Catalyst for Dephosphorylation Reactions Potentiated by Cationic and Anionic MicellesElisa S. Orth and Renan B. Campos
Graphical AbstractImidazole-derived polymer efficiently catalyzes dephosphorylation
reactions, which is enhanced by cationic and anionic micelles
295 Improving the Electroluminescence of [Zn(salophen)(OH2)] in Polyfluorene-Based Light-Emitting Diode: The Role of Energy Transfer and Charge RecombinationJosé C. Germino, Fernando J. Quites, Gregório C. Faria, Romildo J. Ramos and Teresa D. Z. Atvars
Graphical AbstractAquo[N,N’-bis(salicylidene)-o-phenylenediamine]zinc(II) ([Zn(salophen)
(OH)2]) exhibits low photoluminescence (PL) and electroluminescence (EL) properties. However, due to the high energy transfer and charge
recombination from the poly[(9,9-dioctylfluorenyl-2,7-diyl)-alt-co-(9,9-di-{5′-pentanyl}-fluorenyl-2,7-diyl)] (PFOFPen) blue luminescent polymer,
[Zn(salophen)(OH)2] exhibits an intense EL, combining polyfluorene and coordination compounds, and generates a near-white light organic light-
emitting diode (OLED)
278 Thermal Decomposition of Polymer/Montmorillonite Nanocomposites Synthesized in situ on a Clay SurfaceBruno D. Fecchio, Silvano R. Valandro, Miguel G. Neumann and Carla C. S. Cavalheiro
Graphical AbstractPolymer-clay nanocomposites are more resistant to thermal degradation
than the mere polymer
Articles
303 Synthesis and Characterization of Mesoporous Nb2O5 and Its Application for Photocatalytic Degradation of the Herbicide MethylviologenDouclasse C. Castro, Rodrigo P. Cavalcante, Juliana Jorge, Marco A. U. Martines, Lincoln C. S. Oliveira, Gleison A. Casagrande and Amilcar Machulek Jr.
Graphical AbstractNiobium oxides were synthesized and characterized, and their
photocatalytic activity evaluated on the degradation of the herbicide methylviologen
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J. Braz. Chem. Soc.viii
321 Production of Additives with Antimicrobial Activity via Tandem Hydroformylation-amine Condensation of Soybean FAME Using an Ionic Liquid-Based Biphasic Catalytic SystemHugo F. Ramalho, Karlla M. C. Ferreira, Paula M. A. Machado, Tamyris B. Silva, Ellen T. Rangel, Marcos J. Prauchner and Paulo A. Z. Suarez
Graphical AbstractDevelopment of an efficient biphasic system to obtain an antimicrobial
modified biodiesel
334 AuNP@TiO2 Catalyzed Peroxidation of Ethyl- and n-Propylbenzene: Exploring the Interaction Between Radical Species and the Nanoparticle SurfaceCharles-Oneil L. Crites, José Carlos Netto-Ferreira, Geniece L. Hallett-Tapley and Juan Cesar Scaiano
Graphical AbstractThe peroxidation of n-propylbenzene and ethylbenzene proceeds via
reactive oxygen species present on the gold nanoparticles (AuNP) surface
314 Dynamics of Drop Impact Against Surfaces Covered with Langmuir-Blodgett LayersNatália Gonçalves, Paulo B. Miranda and Edvaldo Sabadini
Graphical AbstractA sequence of the impact of a small droplet against a glass surface
covered with Langmuir-Blodgett monolayers of zinc stearate
341 Comparing Photo-Fenton Degradation of Malachite Green Using FeII and FeIII Salts Under UVA Light IrradiationDenis Fuentealba, Carolina Venegas, Marlene Morales and Oscar Waissbluth
Graphical AbstractMalachite green degradation using photo-Fenton process with FeIII was
compared with FeII under optimized conditions
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ixVol. 27, No. 2, 2016
363 Cellulose Nanocrystals Assembled on the Fe3O4 Surface as Precursor to Prepare Interfaced C/Fe3O4 Composites for the Oxidation of Aqueous Sulfide Igor T. Cunha, Ivo F. Teixeira, João P. Mesquita, José D. Ardisson, Ildefonso Binatti, Fabiano V. Pereira and Rochel M. Lago
Graphical AbstractSchematic representation for the electron transfer through the
composites during the sulfide oxidation
372 Zwitterionic Surfactant Stabilized Palladium Nanoparticles as Catalysts in Aromatic Nitro Compound ReductionsFranciane D. Souza, Haidi Fiedler and Faruk Nome
Graphical AbstractReduction of aromatic nitro compounds proceeds via nitroso and
hydroxylamine derivatives and that the intermediate molecules leave the nanoparticle surface, with the reaction proceeding in several steps where
adsorption and desorption are observed in each step of the reaction
349 Self-Organization in Ionic Liquids: From Bulk to Interfaces and FilmsKarina Shimizu, Mohammad Tariq, Adilson A. Freitas, Agílio A. H. Pádua and José N. C. Lopes
Graphical AbstractIonic liquids are considered potential substitutes for traditional solvents. Combined computational and experimental methods are unraveling their
unique properties.
382 Study of the Mode of Inclusion for 7-Hydroxyflavone in β-Cyclodextrin ComplexesBruno H. Fumes, Mariana R. Guzzo, Antonio E. H. Machado and Laura T. Okano
Graphical AbstractOptimized structure of the 7-hydroxyflavone-β-cyclodextrin complex
assuming that inclusion occurred via the phenyl group of the flavonoid molecule. This mode of inclusion produced a more stable complex
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J. Braz. Chem. Soc.x
402 Synthesis, Physicochemical and Photophysical Characterization of 4-(1-Pyrenyl)-butyl-α-D-mannopyranosideCatalina Sandoval, Franco S. Arriagada, Julio R. De la Fuente, Susana A. Sanchez, Javier Morales, Nancy Pizarro, Santi Nonell and German Gunther
Graphical AbstractThe synthesized mannose derivative linked through a short methylene
chain to a pyrene moiety retains the photophysical behavior of non-substituted pyrene
411 Oxidative Modifications in Crystallin Proteins and Lens Epithelial Cells Associated with Photosensitized Reactions Mediated by the Major Chromophore Arising from Glucose DegradationFrancisco Vargas, María Inés Becker, Bertrand Friguet, Eduardo Silva and Felipe Ávila
Graphical AbstractChromophores arising from glucose degradation induce oxidative
modifications in lens proteins and lens epithelial cells through photosensitized reactions
392 Structural Parameters of Lamellar Phases Formed by the Self-Assembly of Dialkyldimethylammonium Bromides in Aqueous SolutionGuilherme A. Ferreira and Watson Loh
Graphical AbstractDue to repulsive electrostatic forces, dioctadecydimethylammonium
bromide DODAB (di-C18) bilayers are thinner and swell more than those formed by didodecyl bromide DDAB (di-C12) surfactant
423 Ultrafast Dynamics of Au Nanopyramid Interfaces Prepared by Nanosphere Lithography: Effect of Substrate Chemical CompositionGuilherme F. Ferbonink, Edna R. Spada, Diego P. dos Santos, Maria L. Sartorelli and Rene A. Nome
Graphical AbstractWavelength-dependent pump-probe measurements across the surface
plasmon resonance spectrum of Au nanopyramids
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