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Now showing items 1-20 of 216
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A combination of metallomics and metabolomics studies to evaluate the effects of metal interactions in mammals. Application to Mus musculus mice under arsenic/cadmium exposure
García Sevillano, Miguel Ángel
; García Barrera, Tamara; Navarro Roldán, Francisco Juan; Montero Lobato, Zaida; Gómez Ariza, José Luis (Elsevier, 2014)
Arsenic and cadmium are toxic metals of environmental significance with harmful effects on man. To study the toxicological and biochemical effects of arsenic/cadmium in mammals a combined metallomic and metabolomic approach ... -
A competing, dual mechanism for catalytic direct benzene hydroxylation from combined experimental-DFT studies
Vilella, Laia; Conde Alcántara, Ana Isabel; Ballcells, David; Díaz Requejo, María Mar; Lledós, Agustín; Pérez Romero, Pedro José (Royal Society of Chemistry, 2017)
A dual mechanism for direct benzene catalytic hydroxylation is described. Experimental studies and DFT calculations have provided a mechanistic explanation for the acid-free, TpxCu-catalyzed hydroxylation of benzene with ... -
A Method to Determine the Electrical Resistance of a Metallic Powder Mass under Compression
Montes Martos, Juan Manuel; Gómez Cuevas, Francisco de Paula; Ternero Fernández, Fátima; Astacio, Raquel; Sánchez Caballero, Eduardo; Cintas Físico, Jesús (MDPI, 2017)
In this paper, a phenomenological model to predict the value of the electrical resistance of a compressed metal powder mass is proposed. The model, based on the experimental compressibility and resistivity-porosity curves, ... -
A multiple hollow fibre liquid-phase microextraction method for the determination of halogenated solvent residues in olive oil
Manso Sayago, José Manuel; García Barrera, Tamara; Gómez Ariza, José Luis (Springer Verlag, 2014)
The present paper describes a method based on the extraction of analytes by multiple hollow fibre liquid-phase microextraction and detection by ion-trap mass spectrometry and electron capture detectors after gas chromatographic ... -
A Quantitative Model for Alkane Nucleophilicity Based on C−H Bond Structural/Topological Descriptors
Besora, María; Olmos Verge, Andrea; Noverges, Bárbara; Asensio, Gregorio; Caballero Bevia, Ana; Maseras, Feliu; Pérez Romero, Pedro José (Wiley, 2020)
A first quantitative model for calculating the nucleophilicity of alkanes is described. A statistical treatment was applied to the analysis of the reactivity of 29 different alkane C−H bonds towards in situ generated metal ... -
Absolute quantification of superoxide dismutase in cytosol and mitochondria of mice hepatic cells exposed to mercury by a novel metallomic approach
García Sevillano, Miguel Ángel; García Barrera, Tamara; Navarro, Francisco; Gómez Ariza, José Luis (Elsevier Masson, 2014)
In the last years, the development of new methods for analyzing accurate and precise individual metalloproteins is of increasing importance, since numerous metalloproteins are excellent biomarkers of oxidative stress and ... -
Adaptación de las prácticas de Análisis Instrumental al Espacio de Convergencia Europeo. Elaboración de Material Didáctico
Sayago Gómez, Ana; Hernanz Vila, Dolores; Gallo Mazzuchino, María Valeria; Beltrán Lucena, Rafael (Centro de Información Tecnológica, 2011-02)
En este trabajo se presenta el desarrollo de un proyecto de innovación educativa realizado por un equipo docente del Área de Química Analítica de la Universidad de Huelva en España como parte de la asignatura Análisis ... -
Adaptation strategies of endolithic chlorophototrophs to survive the hyperarid and extreme solar radiation environment of the Atacama Desert
Wierzchos, Jacek; Vílchez Lobato, Carlos; Garbayo Nores, Inés; Ascaso, Carmen (Frontiers Media, 2015)
The Atacama Desert, northern Chile, is one of the driest deserts on Earth and, as such, a natural laboratory to explore the limits of life and the strategies evolved by microorganisms to adapt to extreme environments. Here ... -
Aerobic Intramolecular Carbon-Hydrogen Bond Oxidation Promoted by Cu(I) Complexes
Álvarez, María; Molina, Francisco; Romero Fructos-Vázquez, Manuel; Urbano Baena, Juan; Álvarez, Eleuterio; Sodupe, Mariona; Lledós, Agustí; Pérez Romero, Pedro José (Royal Society of Chemistry, 2020-09)
The oxidation of C–H bonds by copper centres in enzymes with molecular oxygen takes place in nature under ambient conditions. Herein we report a similar transformation in which under ambient pressure and temperature (1 ... -
Alkenylboronates : synthesis and applications
Carreras, Javier; Caballero Bevia, Ana; Pérez Romero, Pedro José (Wiley, 2019)
Organoboron compounds have become one of the most versatile building blocks in organic synthesis owing to their accessible and efficient conversion into many different functional groups. In particular, alkenyl boronates ... -
Alkoxydiaminophosphine Ligands as Surrogates of NHCs in Copper Catalysis
Pizarro, Juan Diego; Molina, Francisco; Romero Fructos-Vázquez, Manuel; Pérez Romero, Pedro José (Wiley, 2020-08)
A family of phosphine ligands containing a five‐membered ring similar to the popular N‐heterocyclic carbene ligands and an alkoxy third substituent has been developed. These alkoxydiaminophosphine ligands (ADAP) can be ... -
Amorphous Al-Ti Powders Prepared by Mechanical Alloying and Consolidated by Electrical Resistance Sintering
Urban, Petr; Ternero Fernández, Fátima; Caballero, Eduardo S.; Nandyala, Sooraj; Montes Martos, Juan Manuel; Gómez Cuevas, Francisco de Paula (MDPI, 2019-10)
A novel processing method for amorphous Al50Ti50 alloy, obtained by mechanical alloying and subsequently consolidated by electrical resistance sintering, has been investigated. The characterisation of the powders and the ... -
An Overview on the Application of Chemometrics Tools in Food Authenticity and Traceability
González Domínguez, Raúl; Sayago Gómez, Ana; Fernández Recamales, María Ángeles (MDPI, 2022-12)
The use of advanced chemometrics tools in food authenticity research is crucial for managing the huge amount of data that is generated by applying state-of-the-art analytical methods such as chromatographic, spectroscopic, ... -
Antagonistic Interaction of Selenium and Cadmium in Human Hepatic Cells Through Selenoproteins
Ramírez Acosta, Sara; Uhlírová, R.; Navarro Roldán, Francisco Juan; Gómez Ariza, José Luis; García Barrera, Tamara (Frontiers Media, 2022)
Cadmium (Cd) is a highly toxic heavy metal for humans and animals, which is associated with acute hepatotoxicity. Selenium (Se) confers protection against Cd-induced toxicity in cells, diminishing the levels of ROS and ... -
Antagonistic interaction of selenomethionine enantiomers on methylmercury toxicity in the microalgae Chlorella sorokiniana
Moreno Roldán, Fernando; García Barrera, Tamara; Gómez Jacinto, Verónica; Gómez Ariza, José Luis; Garbayo Nores, Inés; Vílchez Lobato, Carlos (Royal Society of Chemistry, 2014)
The protective effect of selenium against mercury toxicity is well known especially between selenomethionine and methylmercury and it has been studied in several living organisms, however information is lacking about the ... -
Antibiotic Resistance Determinants in a Pseudomonas putida Strain Isolated from a Hospital
(Public Library of Science, 2014-01)Environmental microbes harbor an enormous pool of antibiotic and biocide resistance genes that can impact the resistance profiles of animal and human pathogens via horizontal gene transfer. Pseudomonas putida strains are ... -
Antioxidant, Antimicrobial, and Bioactive Potential of Two New Haloarchaeal Strains Isolated from Odiel Salterns (Southwest Spain)
Gómez Villegas, Patricia; Vigara Fernández, Javier; Vila Spinola, Marta; Varela, João; Barreira, Luísa; León Bañares, Rosa María (2020-09-18)
The need to survive in extreme environments has furnished haloarchaea with a series of components specially adapted to work in such conditions. The possible application of these molecules in the pharmaceutical and industrial ... -
Application of a novel metabolomic approach based on atmospheric pressure photoionization mass spectrometry using flow injection analysis for the study of Alzheimer׳s disease
González Domínguez, Raúl; García Barrera, Tamara; Gómez Ariza, José Luis (Elsevier, 2015)
The use of atmospheric pressure photoionization is not widespread in metabolomics, despite its considerable potential for the simultaneous analysis of compounds with diverse polarities. This work considers the development ... -
Application of hollow fiber liquid phase microextraction for simultaneous determination of regulated and emerging iodinated trihalomethanes in drinking water
Domínguez Tello, Antonio; Arias Borrego, Ana; García Barrera, Tamara; Gómez Ariza, José Luis (Journal of Chromatography A, 2015)
Trihalomethanes (THMs) are regulated disinfection by-products (DBPs) most commonly analyzed in quality control water supply due to their harmful effects on health. However, few data exist about the content of emerging ... -
Application of metabolomics based on direct mass spectrometry analysis for the elucidation of altered metabolic pathways in serum from the APP/PS1 transgenic model of Alzheimer's disease
González Domínguez, Raúl; García Barrera, Tamara; Vitorica, Javier; Gómez Ariza, José Luis (Elsevier, 2015)
Metabolomic analysis of brain tissue from transgenic mouse models of Alzheimer's disease has demonstrated a great potential for the study of pathological mechanisms and the development of new therapies and biomarkers for ...
