JBCS

The following parameters were improved in the P(3HB) recovery method: cell concentration, heating time, solvent ratio and separation of cell residue (filtration - conventional method or liquid-liquid separation by polarity difference - new method).

An evaluation of microbiological degradation, in vitro cytotoxicity and antimicrobial activity was performed on Polyurethanes synthesized from castor oil (with and without chemical modification) and isophorone diisocyanate (IPDI).

An endophytic fungus A. versicolor isolated from the leaves of P. aduncum was used to produce six known compounds: three peptide derivatives, one adenine derivative, one phtalide derivative and one benzoic acid derivative.

The figure shows zigzag benzenoid system all of whose vertices have degree either two or three, different variants of Zagreb indices of the benzenoid system are computed which mainly depend on the degrees of vertices of the system.

Equipment coated with the high layer coating obtained in the reaction of modified novolac epoxy.

Iontophoresis presents MXS targeting potential to hair follicles; however, it is incapable of preventing dermal exposure. The passive application of MXS-loaded chitosan nanoparticles remains the best way to target MXS to the hair follicles while avoiding possible side effects.

Determination of pesticides in surface water and sediment, based on solid phase extraction and QuEChERS, analyzed by liquid chromatography and high resolution mass spectrometry.

Saturated hydrocarbons, methyl cinnamate, sitosterol cinnamate and ananixanthone were isolated from the brown propolis (classified as Propolis Type 6). The extracts showed toxicity in the brine shrimp test.

The acetone extracts of S. acuta and S. rhombifolia inhibited yeast α-glucosidase (IC₅₀ 8.49 ± 0.66 and 8.10 ± 0.34 µg mL^-1, respectively) and showed mild activity on DPPH and TPA tests. Among the isolated compounds 5 was active in all evaluations.

BiFeO₃ exhibits anti-ferromagnetic order within distorted rhombohedrally perovskite structure.Among the possible strategies, substitution of the A and/or B site by rare earth or transition metal elements has been proposed in order to suppress formation of secondary phases and to induce ferromagnetism.

The graphical abstract shows the main problems related with the analysis of volatyle methylsiloxanes (VMS): background contamination and vaporization losses, and the techniques commonly used for their analysis. The chemical structures of some VMS are also shown.

The progresses and challenges of some coordination compounds based on Ru(II), Re(I) and Ir(III) for biomolecules photosensors, electroluminescent devices or CO₂ photoreduction catalysts are reviewed and correlated to their photochemical and photophysical properties.

Ecosolvent^® software was used to estimate the environmental impacts for the recovering of some solvents from waste, by distillation, or for the complete incineration of the mixture. In our case, recovering showed to be less impacting than incineration.

This figure illustrates the interrelationship between the epistemological conceptions and didactic models used by teachers to be able to analyze the professional development process.

Illustration of the measurement of analytical signal with (a) and without (b) an intense background signal. As well as illumination by the candles is more visible in dark, measurement of analytical signals is feasible without intense background, thus yielding lower detection limits.

A homemade colorimeter was constructed and used in a physical organic chemical study in order to study the substituent effect in a nucleophilic catalytic acyl transfer reaction.