JBCS

In this paper we describe the synthesis of estradiol templated magnetic molecularly imprinted cryogel. The excellent selective adsorption performance, solid phase extraction and chromatographic performances of the MMIC (magnetic molecularly imprinted cryogel) were investigated.

Five new withanolides, in addition to six others previously reported, were isolated and characterized from the leaf acetone extract of Nicandra physalodes.

Chemical images of carbohydrates and amino acids/ureides generated from Mentha x piperita leaves at distinct maturation stages and obtained upon the application of the desorption electrospray ionization mass spectrometry imaging (DESI-MSI) technique.

Analytical methodology for the determination of antibiotics in mangrove sediments in an estuarine system.

Schematic representation of the transformation from Kaol to Kaol-BTAC. The time required for preparation of methoxy-modified Kaol was shortened by more than fifty percent, and the obtained products could be used for further process without any negative impact.

This work aim is to identify and quantify three different anthocyanidins in six different berries and shows the elucidation of a general fragmentation mechanism.

Acetonitrile and N,N-dimethylformamide modify the water tridimensional structure in the solvation shells of sodium alkyl sulfates and poly(ethylene oxide) without altering the relative stability of the surfactant aggregates formed in the absence and in the presence of the polymer.

4A zeolite synthesized from rice husk by microwave-assisted hydrothermal synthesis without aging time increases the effect of the antistripping additive.

The HPW/Zn-Ti layered double hydroxides exhibited remarkable catalytic performance in the epoxidation of fatty acid methyl ester with H₂O₂.

A new synthetic methodology is demonstrated to obtain potential precursors that may lead to the synthesis of (±)-pyrenophorin through the use of a convenient oxidative ring expansion.

Catalytic activity profiles of 10FexMn/AC (x = 1, 3, 5) catalysts with different Fe and Mn molar ratios.

Phosphotungstic acid supported ceria shows excellent catalytic activity for oxidation of benzyl alcohol to benzaldehyde due to Bronsted-Lewis acid synergy effect.

Ring opening polymerization initiated by tin(II) 2-ethylhexanoate was used to introduce salicyl aldehyde and salicylic acid end groups in poly(lactic acid).

In this work, twelve novel 1,2,3-triazole retinoids analogues of tamibarotene (AM80) were synthesized, and biological activity was evaluated against human cancer cells.

Nonanoic acid-coated magnetic Fe₃O₄ nanoparticles were used as adsorbents for preconcentration and separation of Cu and Pb. Methanol-nitric acid was used as eluent for desorption of Cu and Pb, finally detected by flame atomic absorption spectrometry.

Synthesis of new trans-dehydrocrotonin nitrogenated derivatives, and in vitro evaluation of cytotoxic, and DNA-topoisomerase I activities.

This paper is part of the PubliSBQ Special Issue in honor of the late Prof Angelo da Cunha Pinto.

The humic and fulvic acids extracted from poultry manure are complexed in Cu²⁺, Zn²⁺ and Fe²⁺ and taken to a release test in contact with buffer solution.

Invasive aquatic plants like water hyacinth is one of the major rapid growth plant in the planet and represent a water environmental problem. Through micropyrolysis experiments we can evaluate the potential to use this biomass to produce biofuels or fine chemicals.

1H-Pyrazolo[3,4-b] pyridine phosphoramidates were synthesized and evaluated against Leishmania amazonensis promastigotes in vitro.

Coffea arabica L. leaf extracts, grown under different environmental conditions, were analyzed by FTIR with chemometric tools. It was possible to discriminate leaves from different microclimates by bands related to carbohydrates, amino acids, lipids and caffeine.

The synthesis of a series of O-alkyl oximes of flavone and 6-hydroxyflavone using a simple experimental protocol is reported. Cytotoxicity of all compounds was evaluated against MDA-MB-231, PC-3, A-549 and MRC-5 cells. The best IC₅₀ value was obtained for 6-hydroxyflavone (3.4 μM) against MDA-MB-231.

The inorganic antimony speciation in natural waters was evaluated by hydride generation atomic fluorescence spectrometry (HG AFS).

MD simulations of: CTAB micelles in water (left) and CTAB micelles adsorbed on a gold surface in aqueous solution (right).

The image shows the system used to continuously monitor the transesterification reaction.

A new fast methodology for extraction and quantitative analysis of carotenoids from freeze-dried orange and mango pulps was developed and validated. A detailed identification and quantification, by HPLC-DAD-MS/MS, of carotenoids detected in such matrices are also given.