JBCS

The serpentine is a versatile mineral family rich in Mg silicate with several polymorphic phases with unique physicochemical properties and potential applications.

Arduino was used to develop an automated preconcentration system based on double-knotted reactor (KR) for Mn determination in tea leaves.

Hydroquinone (HQ) and catechol (CC) cannot be separated at the bare glassy carbon electrode (GCE). On the contrary, distinguishable redox peaks of HQ and CC can be observed at high specific surface area activated carbon prepared by Perilla frutescens (PFHSAAC)/GCE. So it is possible to determine HQ and CC by using PFHSAAC/GCE.

Direct analysis of human hair can help to identify an individual. Fusion data improved chemical information for hair samples.

Applying hydrothermal carbonization as treatment process to vinasse a solid is generated, rich in nutrients, and a liquid phase cleaner than vinasse.

Highlighting the stability, the surface properties of brookite TiO₂ versus its polymorphs and revisiting the observed morphologies for lithium batteries and catalysis.

Differences noted on highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), molecular electrostatic potential (MEP) and supramolecular arrangement of two novel 4(1H) quinolinones are associated to substituents chlorine and nitro.

The integrative approach based on mass spectrometry (MS) and nuclear magnetic resonance (NMR) techniques showed to be a useful strategy for comprehensive characterization of isoquinoline-derived alkaloids.

Acid-catalyzed Z-E isomerization of γ-alkylidenebutenolide observed from experiments and studied using density functional theory (DFT).

Avocado seed activated carbon as adsorbent for online Pb²⁺ preconcentration and thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS) determination.

A microextraction and preconcentration methodology using magnetite nanoparticles for lead determination in aqueous samples.

Magnetized activated carbon by iron oxide and modified by positively charged strontium based nanoparticles (FeAC@Sr) introduced an efficient adsorbent for the removal of negatively charged nitrate ions from underground water.

A detailed study of the production of hydrogen, sodium acetate and high added-value liquid products from the ethanol dehydrogenation reaction.

Influence of black pepper processing on trace element levels.

This paper describes the isolation and structure elucidation of four dextrorotatory chromomycins from a cytotoxic extract produced by a Streptomyces bacteria strain recovered from the zoanthid P. caribaeorum, collected at Pedra Rachada Beach, located on the west coast of Ceará State.

Cerium addition reduces the bandgap energy of new nanostructured TiO₂:Cex% photocatalysts from ca. 3.0 to 1.45 eV. Mild photocatalysis conditions can be efficiently applied to degrade dyes.

Stepwise extraction of molecules from Brazil-wood by methanol implies in the selective inner-filter on chlorophyll a fluorescence.

Facile approach for nido-carborane fused azaspirodecaniums in water solution.

It is described herein an ultra-fast hydrothermal microwave assisted method for obtaining a series of sodium-carbonate-phosphate compounds, Na₃MCO₃PO₄ (M = Mn, Fe, Co or Ni) upon 5 min thermal processing, and with relevant application as cathode material in Na-ion batteries.

Argentation chromatography purification of a Yucatecan propolis extract with antioxidant activity allowed the identification of six resorcinolic lipids.

Forty amino acids derivatives were assayed towards four different cancer lines and two normal strains. Three derivatives were found with mean half-maximal inhibitory concentration (IC₅₀) at the low micromolar range. The N-alkyl diamine associated with an amino acid scaffold showed promising results.

Methylene blue (MB) photooxidation over TiO₂ decorated sand grains.