JBCS

Oligo(ethylene glycol) (OEG) can play several roles in sensing systems. The OEG-containing sensing systems are shown to be advantageous as the OEG improves their performance in the analysis of distinct analytes by different techniques.

MALDI(+)TOF MS (matrix-assisted laser-desorption and ionization time-of-flight mass spectrometry) for the rapid detection of cocaine (COC), benzoylecgonine (BZE), and ecgonine methyl ester (EME) in hair strands.

The study aimed to degrade ammonia nitrogen and organic matter in effluent generated at a port terminal used for fertilizer storage. The results indicated removal of 99.99% of N-NH₃ and 75.60% of total organic carbon (TOC).

The Brazilian pitanga fruits exhibited volatile compounds such as esters, terpenes and aldehydes, with β-elemene, E-germacrene and ethyl acetate being the most abundant. Additionally, 124 polar and non-polar metabolites were identified, notably including fatty acids, sugars and terpenes, which possess potential health-promoting effects.

Experimental steps: adsorption of the dyes used (methylene blue (MB) and methyl orange (MO)) present in the solution in thermoplastic starch films (TPS) and TPS/kraft lignin (TPS-KL) (a), followed by desorption of the dyes present in the films in water (b), and subsequent remediation with exposure to photodegradation of the dyes desorbed in water (c).

Twenty three thiophene[2,3-d]pyrimidine derivatives were synthesized by a 3-step reaction, and the bioactivity of the synthesized compounds was evaluated by breast cancer cell MDA-MB-231.

Acyl pyrenes as models for asphaltene aggregation.

The synthesis, antileishmanial assay, and in silico analysis of twenty 2-hydroxy-3-(1,2,3-triazolyl)propyl vanillin derivatives are reported.

This study explores 3D printable resin blends with terpene additives, yielding fifteen formulations. These resins hold promise for drug delivery and the fabrication of biomedical devices.

Residual biomass from the Legal Amazon was used in a slow pyrolysis process. The biochars showed potential for carbon sequestration and contaminant adsorption, while bio-oils, containing phenols and furans, could serve as raw materials in the chemical industry.

The conformation of polymer chains in solution and interactions with additional components can be studied computationally to improve electrospinning parameters.

Detection method of higenamine in food and urine and metabolism study.

Evaluation of chemodiversity, antioxidant and antiglycant activities of Spondias tuberosa leaves during different stages of plant development.

Determination of bisphenol A in urine samples using automated solid-phase extraction followed by liquid chromatography-tandem mass spectroscopy (LC-MS/MS) analysis.

Crotalaria juncea and Crotalaria ochroleuca were cultivated in vitro and the extracts from the callus exhibited high toxicity against Meloidogyne javanica. This effect could be phenolic compounds, alkaloids and flavonoids contents identified in these extracts.

A sustainable hybrid material composed of chitosan biopolymer incorporated with an iron complex was developed for the effective detection of heterocyclic aromatic amines (HAAs), which are possible carcinogens formed during food heat processing.

Our study on sustainable water management for steam generation in sugarcane biorefineries utilized unsupervised methods such as principal component analysis (PCA) and minimum spanning tree (MST) to assess water quality, providing valuable insights for optimizing bioenergy efficiency and sustainability.

Six non-cyanogenic cyanoglycosides, three of which are new, were isolated from the roots of Cordia trichotoma. The new highlighted compound (3) showed a promising α-glycosidase inhibitory activity.

Solar thermal heating is an efficient and environmentally friendly method of heat generation, as it does not produce byproducts typically associated with artificial heating processes.

Spectrophotometric study of the interaction between quercetin and tannic acid with model membranes of healthy and cancer cells.

The identification and quantification of sources contributing to measurement uncertainties were evaluated using single-particle inductively coupled plasma mass spectrometry (sp-ICP-MS) with National Institute of Standards and Technology (NIST) reference material RM 8017.

Synthesis and inhibitory activity against main protease of SARS-CoV-2 of AZT (3'-azido-3'-deoxythymidine) 1,2,3-triazole derivatives supported by molecular dynamics.

Mixture of marine diesel oil with aviation kerosene undergoes accelerated oxidation in an oven to analyze its physical-chemical properties to assess whether it can be used on Brazilian navy ships without harm.

Analysis of screening and quantification for 118 pesticides by ultra-high performance liquid chromatography in combination with high resolution mass spectrometry (UPLC-Orbitrap MS).

Development of a one-pot methodology for the synthesis of aryl azides maintaining anilines as a molecular framework without the need to use sodium azide.