JBCS

Photodecarboxylation reaction yield and Chlorella variabilis fatty acid photodecarboxylase (CvFAP) photostability were increased by using violet light emitting diode (LED) (397 nm) when compared to the high-power blue LED (439 nm).

Cave fungi from Gruta do Catão biodegraded the pyrethroid pesticide gamma-cyhalothrin, showing potential for biotechnological applications. Furthermore, a biodegradation pathway was presented.

Ab initio molecular dynamics calculations were carried out to evaluate the interaction between the chitosan monomer and calcium ion, considering both the gas phase and microsolvation environments.

Licarin A derivative DL21 displays high toxicity to Leishmania amazonensis.

The species of the bloodstains can be identified rapidly, non-destructively and accurately based on a handheld near infrared spectroscopy spectrometer and convolutional neural network-support vector machine algorithm.

Treatment of SH-SY5Y neuroblastoma cells with a carvacrol-based Morita-Baylis-Hillman adducts (MBHAs) promotes cell death by apoptosis, with low toxicity in vivo, emphasizing the potential of carvacrol acrylate/2-naphthyl adduct for future development of anticancer agents.

Spectroscopic, chemical and biological data published between 1965-2022 on acylphloroglucinol derivatives are compiled in this review.

The machine learning model discriminant analysis by partial least squares (PLS-DA) was capable of predicting the diagnosis of coronavirus disease (COVID-19), human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS), tuberculosis (TB), and HIV/TB co-infection patients with high accuracy and identifying potential biomarkers associated with the diagnosis.

Poly(oxazoline)s coupled hydroxyethyl starch nanocapsules were developed by inverse miniemulsion via interfacial polyaddition in order to create a powerful protein suppressor vehicle.

This article portrays the use of a design of experiments to determine how each experimental condition (pyrolysis temperature, base concentration, and activation temperature) and their correlation would affect the properties of activated carbons (from sugarcane bagasse), produced using a solid-state reaction. The results indicated the successful production of activated carbons of surface areas higher than 1400 m² g^-1.

Pleurotin (left) is a potent inhibitor of the thioredoxin reductase (TrxR) enzyme, a target for cancer chemotherapy. This work proposes a new derivative (right) that is ca. 40% more active against TrxR than pleurotin.

The alkaloid fractions of Fusaea longifolia showed high anti-Plasmodium activity and moderate cytotoxic activity. Through characterization via liquid chromatography coupled to mass spectrometry (LC-MS/MS) and using molecular networks, these fractions proved to be promising sources of isoquinoline alkaloids. Based on the molecular docking approach, these alkaloids demonstrated inhibition potential against target enzymes of the Plasmodium falciparum parasite.

Glycerophospholipid profiles of wild Amazonian fish observed through mass spectrometry by analyzing season (drought and flood) influences.

This study investigates the impact of solvent media on the structural and optical behaviors of two isomers of thiazine derivatives. We analyze the effects of relocating the NO₂ group within the isomers and its implications on molecular geometries, optical parameters, and gap energies across different solvent environments. Bond dissociation energy calculations and various analytical insights further contribute to our understanding of these derivatives.

Sodium glyceroxide is a cheap, stable, and safe homogeneous alkaline catalyst for the alcoholysis of triglycerides.

2-Hydrazinyl-4-(4-methoxyphenyl)thiazole (PD76) intestinal permeability was assessed by means of the comparison of in vitro assay in Caco-2 cells and in silico platforms.

Unlocking seasonal fluctuations in the chemical profile of Eugenia punicifolia through ¹H nuclear magnetic resonance and multivariate analysis. Dimethyl sulfoxide (DMSO) leaf extracts revealed distinct chemical profiles and antioxidant activities across seasons, providing insights into the defense mechanisms of the plant.

The image presents a vortex-operated plasma reactor, UV-spectra and chemical kinetics data, culminating in the determinant step for HNO_3(aq) production.

Quantitation method to analyze fentanyl and seven analogues in postmortem blood samples by protein precipitation and liquid chromatography-tandem mass spectrometry.

Sequenced oxidation of glycerol forming glyceraldehyde, glyceric acid, tartronic acid and mesoxalic acid catalyzed by bimetallic silver and palladium nanoparticles anchored on the cobalt ferrite surface.

This study optimizes and validates liquid-liquid extraction with low temperature purification (LLE-LTP) for the first time to determine tolfenpyrad in water.

A seven-step high yielding process from low cost α-resorcylic acid to obtain deoxyrhapontigenin is presented. Intermediaries for divergent strategies and structures are also obtained in high yields.

Microfibers of poly(butylene-adipate-co-terephthalate) (PBAT) and poly-(ε-caprolactone) (PCL) containing ibuprofen were obtained by electrospinning technique. The material revealed potential for transdermal application.

An efficient and green methodology for the use of cyanoacetic acid as active methylene group to aldol type condensation reaction and catalyst for Biginelli reaction was investigated in this study.

Magnetic crosslinked enzyme aggregates finding application on olive oil transesterification. It may be magnetically separated and reused for 6 cycles.

Study of anti-ureolytic activity and the interaction of the Schiff base 4-(3-hydroxybenzylideneamino) phenol (3B4) and its amine derived (3B4a) against urease.

Indium from waste electrical and electronic equipment (WEEE) determination and recycling proposition.

Schematic representation of the incidence of benzo[a]pyrene in olive oil and the employed method to determine its presence and concentration.

Development of a Certified Reference Material (CRM) candidate in powdered egg matrix that meets the production minimum requirements to become a reference material, evaluating its homogeneity and stability, for application in physical-chemical analysis of total solids, fixed mineral residue and protein.

Glycerol-triethanolamine deep eutectic solvent allows the cross-coupling reaction to proceed under inorganic base-free conditions. Triethanolamine phenylboronates were formed in situ and cross-coupling products can be easily extracted with hexane.

This study investigates a series of compounds analogous to caffeic acid phenethyl ester, designed in-house, with promising potential as anticancer agents.

In situ production of methyl esters from crambe seeds applying dimethyl carbonate, as extraction solvent and acyl acceptor, and enzymatic catalyst.

New semisynthetic derivatives obtained from the diterpene stemodin, isolated from Stemodia maritima, and evaluation of the cytotoxic activity.

Nuclear magnetic resonance (NMR) and chemometrics determined the chemical profiles of different styles of beer. Ale and lager beers are differentiated.

A study to establish redox and thermodynamic properties of the protein denaturing agents dithiobutylamine and dithiothreitol was carried out on a glassy carbon electrode.

This study optimized and validated for the first time the solid-liquid extraction with low temperature purification (SLE-LTP) method to determine dinotefuran insecticide residues in soil samples.

Despite coronavirus disease (COVID-19) closure of boards, trafficking of novel synthetic cannabinoids was still present, even inside prison facilities. During COVID-19 lockdown three synthetic cannabinoids were reported for the first time in Rio de Janeiro.

The multicomponent synthesis of isoxazol-5(4H)-ones using an imidazolium-type ionic liquid catalyst provided varying product yields under mild reaction conditions. Through principal component analysis (PCA), a weighted graph was generated representing the descriptors that influence the antimicrobial activity of the derivatives.

Vitamin and nutrient supplements have been increasingly consumed. However, these supplements may be contaminated with toxic elements such as mercury.

Optimization of the extraction  process of   bioactive compounds present in ginger (2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic      acid (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH) and chelating activity of Fe^II) followed by the characterization of the extraction, evaluation of cytotoxic activity and production of liposomes.

Use and production of intact lipolytic cells of Rhizopus oryzae in the production of emollient esters for application in the cosmetics industry.

A mixed oxide (SiO₂/ZnO/Fe₂O₃/ZnFe₂O₄) was prepared using recycled alkaline batteries and mining tailings and applied as a photocatalyst under solar irradiation and as a pseudocapacitor.

Biodegradation of doxycycline by gastrointestinal bacteria isolated from the insect pest Diabrotica speciosa.

In this work, the licuri nutshell residue was transformed into a modified biochar, which showed six times more efficiency than commercial activated carbon towards methylene blue removal.

The types of tobacco leaf disease are identified rapidly, non-destructively, and accurately, based on a handheld near-infrared spectrometer and convolutional neural network algorithm.

Nano zinc-aluminium-layered double hydroxide greatly controls the release rate of levofloxacin (LEV) and salicylic acid (SAL), allowing to maintain adequate drug levels for a certain time, reducing dosing frequency but still achieving the desired effect.

A solid composite electrode based on acetylene black and polyurethane resin (ABPUE) without modifier was evaluated regarding its performance in the voltammetric determination of bisphenol-A in water samples.

This study explored natural solar photolysis of sulfamethoxazole and trimethoprim in Waste Stabilization Pond samples, considering pH, matrix compounds, and exposure time. It also assessed pathogen elimination and photoproduct formation during the process.

Aminoguanidine hydrazone derivatives were synthesized and had their biological activities and biophysical studies carried out, highlighting compound AGH-3.

The bioaccessible fractions of Al, B, Ba, Cu, Fe, K, Mg, Mn, Ni, V and Zn were determined in amaranth, quinoa and chia samples by microwave-induced plasma optical emission spectrometry (MIP OES).

Polyester derived from glycerol, a by-product of biodiesel, applied as an adhesive on different adherents.

This paper presents a method for quantifying the nicotine (NIC) and glycerol (VG) content in reconstituted tobacco using a handheld near-infrared spectrometer to capture spectral data from tobacco leaves.

Nuclei of Bioassays, Biosynthesis and Ecophysiology of Natural Products Database (NuBBEDB) against papain-like protease (PLpro) in virtual screening. Twenty-one molecules were analyzed with absorption, distribution, metabolism, excretion, and toxicity (ADMET) and three raputindoles were analyzed by molecular dynamics.

Scheme for characterization of acerola clones, from harvesting, pulping, and drying (lyophilization) to injection of samples into an ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS-MS) for analysis of the phenolic profile and consequent antioxidant action, followed by chemometric analysis to better understand the physiology of the fruit.

Iron nanoparticles synthesized by green process, using Eucalyptus grandis leaf extract, for use as a peroxidase-like catalyst for H₂O₂ quantification.

NOx emission factors of heavy vehicles were measured through a sensor and compared to legislation.

It was developed Nb₂O₅ samples with a high photoactivity for organic pollutant photodegradation and H₂ production.

Effects of synthesized pyrazoline derivative, 4-(3-(4-bromophenyl))-5-(3,4- dimethoxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl) benzene sulfonamide (compound B8), on antioxidant enzymes and hematological parameters of rainbow trout alevins (Oncorhynchus mykiss).