J. Braz. Chem. Soc. vol.28 número10

Antitumor activity assays of the new complexes using the invasive MDA-MB-231 and non-invasive MCF-7 human breast tumor cell lines indicated a good degree of cytotoxicity for

The results showed that after treatment with ultrasound using a power of 30% and a temperature of 55 °C was obtained an increase in relative activity, 129.5% in the enzyme from

Thus, the emission suppression observed at 440 nm shows a straight-line Stern-Volmer plot due to the formation of the locked-enol tautomer, and the concentration region where

Loadings plot for the first PLS-DA model highlighting the most relevant volatile constituents to discriminate the species Phloeophana longirostris (left) and Phloea subquadrata

Their structures were determined via one and two-dimensional nuclear magnetic resonance (1D and 2D NMR) experiments, electrospray ionization Fourier transform ion cyclotron

The synthesis of several new xanthenes based on the 1,3-dicarbonyl scaffolds lawsone and coumarin was developed using tandem three-component reactions involving the reagents..

S, and Zn in different parts of the plant (roots, stems, and cotyledons); on protein concentrations (albumins, globulins, prolamins, and glutelins) and their association with Fe

A drought larger than 130 mm in the previous har- vest, already affects the sucrose accumulation harm- ing the maturation, giving a negative signal for soil water storage