JBCS

MnCo₂O₄/Au exhibited a synergistic effect boosting the oxygen reduction and evolution. In situ X-ray absorption near edge structure (XANES) revealed that Mn^III-Co^II play a role in the reduction. Au induced the increase in the Co^IV amount, favoring the oxygen evolution.

The ambiphilic character of carbenoids, represented by the chinese yin yang, shows how apparently opposite forces can be complementary in organic synthesis.

Volatile organic compounds from ten endophytic fungal species belonging to the Botryosphaeriaceae family were extracted by headspace-solid phase micro-extraction (HS-SPME) and analyzed by gas chromatography-mass spectrometry (GC-MS).

P123 and EmSn binary micelles presented thermorreversible gelation, low critical micelle concentration (cmc), good drug solubilisation capacity and no citotoxicity.

This study has demonstrated the successful analysis of parabens on surface water samples, collected from Mogi Guaçu River (Sao Paulo state, Brazil), by dispersive liquid-liquid microextraction (DLLME) based on low density solvent (LDS) combined with liquid chromatography with diode array detection (LC-DAD).

Zeolite confines the growth of the magnetite nanoparticles and provides stability, which prevents from agglomeration and oxidation leading to structural transformation.

Cis-[Ru(Me₄-phen)(dcbH₂)(NCS)₂] was prepared, characterized and employed in dye-sensitized solar cells. The presence of four methyl groups on 1,10-phenanthroline modulates its ground and excited states and the ability to convert sunlight into electrical energy.

The essential oil composition of γ-irradiated flowers of Solanum stipulaceum was analyzed by gas chromatography (GC). The cytotoxicity of essential oils from non-irradiated and irradiated flowers was also studied.

Discrimination of Annona muricata and Rollinia mucosa samples processed by multivariate curve resolution-alternating least-squares (MCR-ALS) and discriminant-unfolded partial least-squares (D-UPLS) of high-performance liquid chromatography with diode array detection (HPLC-DAD) data.

Fe₃O₄ nanoparticles were coated with mesoporous silica, MCM-41, and then amino-functionalization was performed on the MCM-41 surface by 3-aminopropyltriethoxysilane through the silanization reaction with hydroxyl groups of MCM-41. Fe₃O₄@MCM-41-NH₂ was used for extraction of some toxic metal ions from aqueous solutions.

The heterometallic complex [FeCl{Ti₂(OⁱPr)₉}] was employed as initiator of ring-opening polymerization of ε-caprolactone and rac-lactide in bulk and in solution. The catalytic performance of the heterometallic complex was compared to the activities of other titanium(IV) and iron(II) complexes.

This work is about a study of pesticide residue contamination in surface and subsurface waters, sediments and fish of center-pivot irrigation areas. Atrazine was observed below the method quantitation limit in subsurface water.

Besides the efficiency against insect pests, novel agrochemicals should preferably provide selectivity to non-target species. Therefore, the lactones synthetized in this work are promising as potential novel agrochemicals for the integrated pest management.

In this work, new peptides named cinerascetins were identified from skin secretion of the Hypsiboas cinerascens. Imaging analysis localized the peptides on the dorsal tissue. Synthetic cinerascetin-01 was tested against some bacteria and fungi presenting satisfactory antimicrobial activities.

The synthesis of 3-(1H-1,2,3-triazol-1-yl)-2-(arylselanyl)pyridines by copper-catalyzed cycloaddition reaction is presented here.

Fifteen constituents, including a new phenolic compound, were isolated from the seeds of Raphanus sativus. Some of the isolated compounds showed moderate antiproliferative activities and significant anti-neuroinflammatory effects.

Polythiophene was electrosynthesised as nanowires from the monomer and some of its oligomers on a Pt electrode previously modified with a template.

A new and five known piperamides were unequivocally characterized in mixture from few amounts of semi-purified fractions from fruits, leaves, stems and roots of Piper ottonoides by using nuclear magnetic resonance and gas chromatography-mass spectrometry.

Monolithic and core-shell chromatographic columns were evaluated for separation of triazines and some of their metabolites in ultrasound extracted soil.

Fast synthesis of lanthanide doped CaTiO₃ produces a microcube-like structure and a region without well-defined morphology. The structural disorder and observed photoluminescence emission are correlated.

Synthesis, structure, antioxidant and antimicrobial activity evaluation of novel 2-(5-trifluoromethyl-1H-pyrazol-1-yl)-5-(5-trihalomethyl-1H-pyrazol-1-yl-1-carbonyl)pyridines bearing two distinct trihalomethyl substituted pyrazole rings.

The oxidation of hop-derived terpenes in beer has been shown to occur through a hydrogen atom abstraction by 1-hydroxyethyl radical rather than by an electron transfer mechanism.

The optimization method which combined desirability function with response surface methodology (RSM) models was chosen to find the best extraction conditions for obtaining maximum yield of major avenanthramides from oat grain.

Fe⁰ cores encapsulated in a carbon matrix treated with CO₂ to selectively oxidize the amorphous carbon and release carbon coated magnetic nanoparticles.

This work describes a simple and fast spectrophotometric method for the determination of aluminium in hemodialysis water employing alizarin red S in the presence of polyvinylpyrrolidone 40.