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A Topological Study of the Decomposition of 6,7,8-Trioxabicyclo[3.2.2]nonane Induced by Fe(II): Modeling the Artemisinin Reaction with Heme
American Chemical Society (2010)We report a theoretical study on the electronic and topological aspects of the reaction of dihydrated Fe(OH)2 with 6,7,8-trioxabicyclo[3.2.2]nonane, as a model for the reaction of heme with artemisinin. A comparison is ... -
Acetone gas sensor based on α-Ag2WO4 nanorods obtained via a microwaveassisted hydrothermal route
Elsevier (2016)This manuscript addresses the synthesis of one-dimensional (1D) α-Ag2WO4 nanorod-like structures via a microwave-assisted hydrothermal method to be used as an acetone gas sensor. The nanorods showed excellent gas-sensing ... -
Activation of Secondary Metabolism in Citrus Plants Is Associated to Sensitivity to Combined Drought and High Temperatures
Frontiers Media (2017-01)Drought and heat stresses are two of the most frequent environmental factors that take place simultaneously in the field constraining global crop productivity. Metabolism reconfiguration is often behind the adaptation of ... -
Advances in the Development of SARS-CoV-2 Mpro Inhibitors
MDPI (2022-04-14)Since the outbreak of COVID-19, one of the strategies used to search for new drugs has been to find inhibitors of the main protease (Mpro) of the virus SARS-CoV-2. Initially, previously reported inhibitors of related ... -
Ag Nanoparticles/AgX (X=Cl, Br and I) Composites with Enhanced Photocatalytic Activity and Low Toxicological Effects
Wiley (2020-04-23)Periodic structures induced by electron irradiation are a unique phenomenon when electron beams irradiate on the surface of some materials. These periodic structures have potential for technological applications. However, ... -
Ag Nanoparticles/α-Ag2WO4 Composite Formed by Electron Beam and Femtosecond Irradiation as Potent Antifungal and Antitumor Agents
Nature Research (2019)The ability to manipulate the structure and function of promising systems via external stimuli is emerging with the development of reconfigurable and programmable multifunctional materials. Increasing antifungal and antitumor ... -
Ag2WO4 as a multifunctional material: Fundamentals and progress of an extraordinarily versatile semiconductor
Elsevier (2022-11-18)Silver tungstate (Ag2WO4) based materials are intensively studied because of their unique chemical and physical properties. Ag2WO4 polymorphs present discrete and intrinsically complex architectures due to a multifaceted ... -
Aharonov-Bohm oscillations and electron gas transitions in hexagonal core-shell nanowires with an axial magnetic field
American Physical Society (2015)We use spin-density-functional theory within an envelope function approach to calculate electronic states in a GaAs/InAs core-shell nanowire pierced by an axial magnetic field. Our fully three-dimensional quantum modeling ... -
Air-Stable, Well-Soluble AI2[Nb6Cl18] Cluster Compounds (AI = Organic Cation): A New Route for Preparation, Single-Crystal Structures, Properties, and ESI-Mass Spectra
Wiley (2016-04)Five niobium cluster compounds of the AI2[Nb6Cl18] type (AI = organic cation: [nPr4N]+, [nBu4N]+, [BMIm]+, [Ph4P]+, and [PPN]+) are obtained through treatment of [Nb6Cl14(H2O)4]·4H2O with excess of thionyl chloride in the ... -
alpha-Ag2-2xZnxWO4 (0 <= x <= 0.25) Solid Solutions: Structure, Morphology, and Optical Properties
American Chemical Society (2017-06)A theoretical study was elaborated to support the experimental results of the Zn-doped α-Ag2WO4. Theses α-Ag2–2xZnxWO4 (0 ≤ x ≤ 0.25) solid solutions were obtained by coprecipitation method. X-ray diffraction data indicated ... -
An easy and green assay to determine albendazole and ivermectin in veterinary preparations by micellar liquid chromatography
Wiley (2023-01-25)A procedure to determine albendazole and ivermectin in veterinary formulations, like tablet, bolus, oral suspensions, and injections by micellar liquid chromatography, has been developed. Sample preparation was a batch ... -
An electron localization function and catastrophe theory analysis on the molecular mechanism of gas-phase identity SN2 reactions
Springer Verlag (2008)A set of four reactions, XCH3+X− (X=F, Cl, Br) and ClSiH3+Cl−, is investigated by means of the joint use of the electron localization function (ELF) and catastrophe theory (CT) analysis in order to obtain newinsights ... -
An Experimental and Computational Study of β-AgVO3: Optical Properties and Formation of Ag Nanoparticles
ACS Publications (2016-05-19)This article aims to gather together in one place and for first time the formation process of Ag nanoparticles (NPs) on β-AgVO3 crystals, driven by an accelerated electron beam from an electronic microscope under high ... -
An experimental and theoretical investigation on the optical and photocatalytic properties of ZnS nanoparticles
Elsevier (2017-04)From the viewpoints of materials chemistry and physical chemistry, crystal structure directly determines the electronic structure and furthermore their optical and photocatalytic properties. Zinc sulfide (ZnS) nanoparticles ... -
An Initial Approach to the Presence of Pharmaceuticals in Wastewater from Hospitals in Colombia and Their Environmental Risk
MDPI (2022-03-18)Hospital wastewater (HWW) from three different cities in Colombia was characterized. Wastewater quality indicators and 38 relevant pharmaceuticals were examined. The HWW had pH from 6.82 to 8.06, chemical oxygen demand ... -
Analysis of aroma-related volatile compounds affected by ‘Ginsen Makuwa’ genomic regions introgressed in ‘Vedrantais’ melon background
Elsevier (2021-01-27)Volatile organic compounds (VOCs) have an important role in melon flavour, one of the most important traits influencing consumer’s preferences. The volatile profile of 25 introgression lines(ILs), developed from the ... -
Analysis of basic drugs by liquid chromatography with environmentally friendly mobile phases in pharmaceutical formulations
Elsevier (2017)Basic drugs are positively charged in the usual working pH (2–8) in reversed-phase liquid chromatography. This gives rise to a strong association with the residual ionized silanols in conventional silica-based stationary ... -
Analysis of danofloxacin, difloxacin, ciprofloxacin and sarafloxacin in honey using micellar liquid chromatography and validation according to the 2002/657/EC decision
Royal Society of Chemistry (2015)A reliable and sensitive method based on micellar liquid chromatography was optimized for the analysis of the fluoroquinolones danofloxacin, difloxacin, ciprofloxacin and sarafloxacin in honey. The sample was 1 : 1 diluted ... -
Analysis of epinephrine, norepinephrine, and dopamine in urine samples of hospital patients by micellar liquid chromatography
Springer (2015-12-01)An analytical method based on micellar liquid chromatography was developed to determine the concentration of three catecholamines (epinephrine, norepinephrine, and dopamine) in urine. The detection of these compounds in ... -
Analysis of omeprazole and its main metabolites by liquid chromatography using hybrid micellar mobile phases
Elsevier (2009)Omeprazole is a selective inhibitor of gastric acid secretion and is one of the most widely prescribed drugs internationally. A chromatographic procedure that uses micellar mobile phases of sodium dodecyl sulphate and ...