JBCS

Novel six-membered lactam derivatives were synthesized using microwave methodology. Cytotoxicity of products on cell lines and FXa activity assays are also reported.

Smectite clay modified with cetyltrimethylammonium bromide surfactant and its ability to remove oil from aqueous effluents.

3-(Thiophen-2-yl)-4,5-dihydro-1H-pyrazole-1-carboximidamides were efficiently synthesized through a cyclocondensation reaction between aminoguanidine hydrochloride and thiophenylchalcones under ultrasonic conditions employing KOH and ethanol in short reaction times and good yields. All compounds produced were evaluated against three leukemia cell lines.

Zinc isotope ratios were determined in soil, plant, rock and sediment reference materials by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS). The procedure encompassed an improved ion exchange chromatography protocol for fast and simple Zn separation, investigations into the instrumental mass bias processes and its correction using different approaches.

A new chromatographic method was developed and validated for the determination of benznidazole incorporated within nanoemulsions or nanostructured lipid carriers.

Small model of oxygen evolving complex (OEC) cluster.

Determination of moxidectin in serum by liquid chromatography-tandem mass spectrometry and its application in pharmacokinetic study in lambs.

Development of molecularly imprinted polymers for solid phase extraction of parabens in plasma samples and analysis by UHPLC-MS/MS.

Speciation and determination of Cr after liquid-liquid microextraction combined with high-resolution continuum source atomic absorption spectrometry. Different pH value allowed speciation of Cr^III and Cr^VI.

The principle diagram of electrochemical luminescence sensor of chitosan-Ru(bpy)₃²⁺-SiO₂ NPs/MCNT/Nafion for tiapride hydrochloride.

Multicomponent synthesis of β-aryl-γ-nitroesters promoted by hydrotalcite-derived mixed oxides.

The scanning electron microscopy (SEM) results revealed the nanostructure of the particles. Under optimum conditions the photocatalytic removal of methylene blue (MB) was 99% by experimental testing.

Data food composition knowledge is very important. Avocado, pineapple, banana, papaya, passion fruit, watermelon and melon different parts (pulp, peel and seed) cultivated in Brazil have nutrients.

Strontium and nickel oxides have shown effectiveness for production of biodiesel of macaw oil. The catalyst can be used in many reaction cycles.

Schematic representation of PhotoMetrix, which employs techniques for univariate analysis and multivariate exploratory analysis.

12-Tungstophosphoric acid supported on silica-alumina is a stable catalyst with interaction occurring on isolated and aluminic pseudo-bridging silanols. The most active catalyst for acetic acid and ethanol esterification was 30 wt.% H₃PW/SiO₂-Al₂O₃, which showed 79 ± 3% yield and 100% selectivity for ethyl acetate after 2 h reaction time.

Development of monolithic dispensers for the controlled release of the pheromone components of a forest pest and study of its physicochemical properties.

Four compounds were successfully screened and identified as xanthine oxidase inhibitors from Puerariae flos extract with centrifugal ultrafiltration coupled with high performance liquid chromatography-mass spectrometry (CU-LC-MS).

Isolation and characterization of a new sesquiterpene lactone of the furanoheliangolide type named 11,13-dihydroxy-calaxin, in addition to seven known compounds from Calea pinnatifida leaves.

The metal content of nine medicinal plants and phytomedicines from Brazil was evaluated by inductively coupled plasma optical emission spectrometry (ICP OES).

A new procedure to detect the authenticity of commercial olive oils, commonly adulterated with polyunsaturated oils, employing low-field nuclear magnetic resonance (LF-NMR) directly in the sealed bottles is proposed.