JBCS

Activated carbons and manganese-modified activated carbons were used as deoxidizers for the coalbed methane deoxidation.

Release behaviors of As during pyrolysis of two coal gangues under different temperature, residence time, heating rate and N₂ gas flow rate.

Hydrated Mn/Al-SO₄-A (A = Li, Na or K) layered double hydroxides with Mn:Al molar ratio close to 1:1 were synthesized and alkali metals could be partially exchanged without removing the intercalated sulfate anions.

Polyvinylpyrrolidone-coated Fe₃O₄ magnetic nanoparticles were applied as adsorbents for rapid cleanup for extracts of animal feed samples. New pre-column derivatization is used for determination of aflatoxins B₁, B₂, G₁ and G₂ by coupling trifluoroacetic acid with ultraviolet irradiation.

A copper-silica material was prepared and characterized and applied as easy handling heterogeneous catalyst on the synthesis of biologically relevant imidazo[1,2-a]pyridines with different aryl groups in good yields.

Fruit and leaf samples of passion fruit (Passiflora edulis) were collected from different Brazilian regions, processed and analyzed for the presence of dithiocarbamate residues, as CS₂, using a validated spectrophotometric method.

We developed a low cost molecular test for the detection of dengue virus (DENV) directly from serum, which is based on reverse transcription-loop mediated isothermal amplification (RT-LAMP) assay run at 72 °C for 15 min.

1,5-Diphenylthiocarbazone (DPT) probe in presence of Cu²⁺ changes from cantaloupe to gray-green color.

Molecular hybrids showed anticancer activity in human metastatic melanoma cells (SKMEL-103) inhibiting the expression of PI3K and AMPK, as predicted by molecular docking.

Fabrication of a sensitive and selective dipyridamole potentiometric sensor based on amino silica graphene oxide molecular imprinted polymer as the molecule recognition material in multi-walled carbon nanotubes (MWNT)/carbon paste electrode (CPE) matrix.

Determination of the inorganic composition and sulfur chemical speciation in the Amazonian plant Andira suraminensis using synchrotron radiation-based techniques (X-ray absorption near edge structure (XANES) and synchrotron radiation based X-ray fluorescence (SR-XRF)), wavelength dispersive X-ray fluorescence spectrometry (WD-XRF) and Rutherford backscattering spectrometry.

Application of simple niobium compounds as catalysts under reflux and ultrasound-assisted systems in transesterification reactions.

Metals are present mainly in a particulate form and more available to be distributed in the watershed. Most of the rivers presented dissolved metal concentrations below the Brazilian regulation. Whitewaters export more amount of particulate and metals. Sediments samples are not contaminated by metals.

A comparative docking study between two chalcones suggests tri-methoxy chalcones as candidates to beta-secretase 1 (BACE-1) inhibitors.

A hand-held digital light processing (DLP) based near infrared (NIR) spectroscopy device is an useful tool for grading tobacco leaves in the purchasing spot.

A noble cobalt oxide supported on sepiolite catalyst was synthesized, characterized, and applied efficiently for degradation of toluene in air streams.

The figure shows the sulfonated film is yellow in acidic medium and purple in alkaline medium. The sulfonated polymer suspension is yellow at pH value below 5, and purple at the pH higher than 9.

Chemically-reduced graphene oxide sensor for quantification of ciprofloxacin in milk and pharmaceutical formulations.

The lignocellulosic wastes can be recycled by enzymatic hydrolysis for production of fermentable sugars for second generation ethanol.

The gas diffusion electrode (GDE) of WO_2.72 / Vulcan XC72 generates H₂O₂. H₂O₂ reacts with the Fe²⁺ ion to form the hydroxyl radical (OH). This radical oxidizes the azo dyes to convert them to CO₂, H₂O and inorganic salts.

Solid catalysts were prepared by the heterogenization of n-Bu₃Sn(OMe) and n-Bu₂Sn(OMe)₂ on silica by two different strategies.

Uncured polydimethylsiloxane (PDMS) is a promising binder agent able to produce carbon paste electrodes (CPEs) with improved analytical performance and superior electrochemical properties than Nujol^®.