Search results for: Ana M. López

Items from 1 to 20 out of 127 results

article

One‐dimensional metal–organic frameworks built by coordinating 2,4,6‐tris(4‐pyridyl)‐1,3,5‐triazine linker with copper nodes: CO₂ adsorption properties

Núria Portolés‐Gil, Oriol Vallcorba, Julio Fraile‐Sainz, Ana M. López‐Periago, more

Applied Organometallic Chemistry > 37 > 1 > n/a - n/a

The reaction between 2,4,6‐tris(4‐pyridyl)‐1,3,5‐triazine (4‐tpt) and copper(II) hexafluoroacetylacetone (Cu(hfa)₂) yields two different 1D metal–organic frameworks (MOFs), [(Cu(hfa)₂)₂(4‐tpt)]_n (1) and [Cu(hfa)₂(4‐tpt)]_n (2). The Cu:4‐tpt ratio in the new MOFs is determined by the reaction medium, particularly, the solvent used. The two compounds have been fully characterized, including crystal structure...

article

Metathesis between E−C(spⁿ) and H−C(sp³) σ‐Bonds (E=Si, Ge; n=2, 3) on an Osmium‐Polyhydride

Miguel A. Esteruelas, Ana M. López, Enrique Oñate, Esther Raga

Angewandte Chemie International Edition > 61 > 29 > n/a - n/a

The silylation of a phosphine of OsH₆(PⁱPr₃)₂ is performed via net‐metathesis between Si−C(spⁿ) and H−C(sp³) σ‐bonds (n=2, 3). Complex OsH₆(PⁱPr₃)₂ activates the Si−H bond of Et₃SiH and Ph₃SiH to give OsH₅(SiR₃)(PⁱPr₃)₂, which yield OsH₄{κ¹‐P,η²‐SiH‐[ⁱPr₂PCH(Me)CH₂SiR₂H]}(PⁱPr₃) and R−H (R=Et, Ph), by displacement of a silyl substituent with a methyl group of a phosphine. Such displacement is a first‐order...

article

Metathesis between E−C(spⁿ) and H−C(sp³) σ‐Bonds (E=Si, Ge; n=2, 3) on an Osmium‐Polyhydride

Miguel A. Esteruelas, Ana M. López, Enrique Oñate, Esther Raga

Angewandte Chemie > 134 > 29 > n/a - n/a

article

Recent Advances in Synthesis of Molecular Heteroleptic Osmium and Iridium Phosphorescent Emitters

María L. Buil, Miguel A. Esteruelas, Ana M. López

European Journal of Inorganic Chemistry > 2021 > 46 > 4731 - 4761

The application of new procedures of organometallic synthesis based on alternative starting complexes has given rise to a significant enhancement in the preparation of osmium(IV), osmium(II), and iridium(III) emitters, since 2012. The choice of the precursors should be done taking into account its ligands, since they may cooperate in the emitter synthesis. Three different functions are clearly pointed...

article

The red fox (Vulpes vulpes) as a potential natural reservoir of human cryptosporidiosis by Cryptosporidium hominis in Northwest Spain

Juan P. Barrera, David Carmena, Elena Rodríguez, Rocío Checa, more

Transboundary and Emerging Diseases > 67 > 5 > 2172 - 2182

Giardia duodenalis and Cryptosporidium spp. are ubiquitous intestinal protozoa that parasitize domestic and wild animals, as well as human beings. Due to their zoonotic potential, the objective of the present study was to determine the presence of these pathogens in the fox population (Vulpes vulpes) located in Northwest Spain. A total of 197 faecal samples from legally hunted foxes were collected...

article

Deacylative Alkylation vs. Photoredox Catalysis in the Synthesis of 3,3'‐Bioxindoles

Cristina Moreno‐Cabrerizo, Aitor Ortega‐Martínez, Miguel A. Esteruelas, Ana M. López, more

European Journal of Organic Chemistry > 2020 > 20 > 3101 - 3109

The synthesis of 3,3'‐bioxindoles employing deacylative alkylations (DaA) in one‐pot process, where the 3‐bromooxindoles are generated in situ, is described. Good yields and moderate diastereoselections are obtained. By the modification of this procedure the synthesis of pure 3‐bromooxindoles through a deacylative bromination (DaB) is achieved. These bromides are efficiently employed in a photoredox...

article

The relationship with the voices as a dialogical experience: The role of self‐focused attention and dissociation

Salvador Perona‐Garcelán, Ana M. López‐Jiménez, Gloria Bellido‐Zanin, Cristina Senín‐Calderón, more

Journal of Clinical Psychology > 76 > 3 > 549 - 558

Objective The purpose of this article was to study the relationship of self‐focused attention and dissociation with the dialogical relationship persons diagnosed with psychosis have with their voices. Method The DAIMON Scale was applied to 62 persons diagnosed with psychosis to measure the dialogical relationship with their voices, and the Cambridge depersonalization scale, the Tellegen absorption...

article

Advances in interferometric techniques for the analysis of the three-dimensional flow in a lid-driven cylindrical cavity

Ana M. López, Julia Lobera, Nieves Andrés, M. Pilar Arroyo, more

Experiments in Fluids > 2020 > 61 > 1 > 1-14

In this work, a qualitative and quantitative characterization of the three-dimensional flow in a lid-driven cylindrical cavity with different optical techniques is presented. Mach–Zehnder interferometry and photographic techniques have been used for a qualitative description of some flow features. However, the real challenge is to obtain quantitative measurements, as the cavity dimensions and geometry...

article

Thermal treatment and modified atmosphere packaging delay chilling injury and preserve the quality of cactus stems (Opuntia ficus‐indica Mill.) cv Atlixco

Lizette L. Rodríguez‐Verástegui, Juliana Osorio‐Córdoba, Fernando Díaz de León‐Sánchez, Ana M. López‐Ramos, more

Journal of Food Biochemistry > 43 > 3 > n/a - n/a

Response surface methodology was applied in order to select the optimal thermal treatment (TT) and modified atmosphere packaging (MAP) needed to preserve minimally processed cactus stems, cv Atlixco. Accordingly, a 42 s/48°C TT together with a 10% CO₂ MAP were selected, and their effects evaluated during storage at 4°C. Controls lost more weight (3.8%) than TT (3.3%), MAP (1.4%), and TT‐MAP (1.3%)...

article

Preparation and Characterization of Graphene Oxide Aerogels: Exploring the Limits of Supercritical CO₂ Fabrication Methods

Alejandro Borrás, Gil Gonçalves, Gregorio Marbán, Stefania Sandoval, more

Chemistry – A European Journal > 24 > 59 > 15903 - 15911

The supercritical carbon dioxide (scCO₂) synthesis of non‐reduced graphene oxide (GO) aerogels from dispersions of GO in ethanol is here reported as a low‐cost, efficient, and environmentally friendly process. The preparation is carried out under the mild conditions of 333 K and 20 MPa. The high aspect ratio of the used GO sheets (ca. 30 μm lateral dimensions) allowed the preparation of aerogel monoliths...

article

Adequacy of usual macronutrient intake and macronutrient distribution in children and adolescents in Spain: A National Dietary Survey on the Child and Adolescent Population, ENALIA 2013–2014

Ana M. López-Sobaler, Aránzazu Aparicio, Josefa Rubio, Victoria Marcos, more

European Journal of Nutrition > 2019 > 58 > 2 > 705-719

Objectives To describe the nutritional profile and assess the National Dietary Survey on the Child and Adolescent Population project in Spain (ENALIA) regarding usual total energy and macronutrient intake. Methods A cross-sectional nationally representative sample of 1862 children and adolescents (age 6 months to 17) was surveyed between 2013 and 2014 following European methodology recommendations...

article

Retrofitting strategies for improving the energy and environmental efficiency in industrial furnaces: A case study in the aluminium sector

Patricia Royo, Víctor José Ferreira, Ana M. López-Sabirón, Tatiana García-Armingol, more

Renewable and Sustainable Energy Reviews > 2018 > 82 > P2 > 1813-1822

This study aims to analyse some of the most relevant issues that the energy intensive industry needs to face in order to improve its energy and environmental performance based on innovative retrofitting strategies. To this end, a case study based on the aluminium industry, as one of the most relevant within the European energy intensive industry has been thoroughly discussed. In particular, great...

article

η¹‐Arene Complexes as Intermediates in the Preparation of Molecular Phosphorescent Iridium(III) Complexes

Miguel A. Esteruelas, Daniel Gómez‐Bautista, Ana M. López, Enrique Oñate, more

Chemistry – A European Journal > 23 > 62 > 15729 - 15737

Molecular phosphorescent heteroleptic bis‐tridentate iridium(III) emitters have been prepared via η¹‐arene intermediates. In the presence of 4.0 mol of AgOTf, the complex [(IrCl{κ³‐N,C,N‐(pyC₆HMe₂py)})(μ‐Cl)]₂ (1; pyC₆H₂Me₂py=1,3‐di(2‐pyridyl)‐4,6‐dimethylbenzene) reacted with 9‐(6‐phenylpyridin‐2‐yl)‐9H‐carbazole (PhpyCzH) and 2‐phenoxy‐6‐phenylpyridine (PhpyOPh) to give [Ir{κ³‐N,C,N‐(pyC₆HMe₂py)}{κ...

article

A two-plasmid inducible CRISPR/Cas9 genome editing tool for Clostridium acetobutylicum

François Wasels, Jennifer Jean-Marie, Florent Collas, Ana M. López-Contreras, more

Journal of Microbiological Methods > 2017 > 140 > C > 5-11

CRISPR/Cas-based genetic engineering has revolutionised molecular biology in both eukaryotes and prokaryotes. Several tools dedicated to the genomic transformation of the Clostridium genus of Gram-positive bacteria have been described in the literature; however, the integration of large DNA fragments still remains relatively limited. In this study, a CRISPR/Cas9 genome editing tool using a two-plasmid...

article

Risk of Illness with Salmonella due to Consumption of Raw Unwashed Vegetables Irrigated with Water from the Bogotá River

Laura X. Henao‐Herreño, Ana M. López‐Tamayo, Juan P. Ramos‐Bonilla, Charles N. Haas, more

Risk Analysis > 37 > 4 > 733 - 743

The Bogotá River receives untreated wastewater from the city of Bogotá and many other towns. Downstream from Bogotá, water from the river is used for irrigation of crops. Concentrations of indicator organisms in the river are high, which is consistent with fecal contamination. To investigate the probability of illness due to exposure to enteric pathogens from the river, specifically Salmonella, we...

article

Supercritical CO2 for the synthesis of nanometric ZIF-8 and loading with hyperbranched aminopolymers. Applications in CO2 capture

Pedro López-Domínguez, Ana M. López-Periago, Francisco J. Fernández-Porras, Julio Fraile, more

Journal of CO 00002 Utilization > 2017 > 18 > C > 147-155

ZIF-8 nanometric particles are prepared via an environmentally friendly supercritical method aimed to minimize the environmental impact of current developed technologies for the synthesis of metal organic frameworks. In this synthetic process, CO₂ and ZIF-8 precursors are exclusively employed, avoiding the use of organic liquids, difficult to recover additives or large amounts of expensive ligand...

article

A process integration approach for the production of biological iso-propanol, butanol and ethanol using gas stripping and adsorption as recovery methods

Konstantinos A. Pyrgakis, Truus de Vrije, Miriam A.W. Budde, Kyriakos Kyriakou, more

Biochemical Engineering Journal > 2016 > 116 > C > 176-194

Biomass fermentation to Iso-propanol, Butanol and Ethanol (IBE) is particularly important as IBE is a common building block in the development of biorefineries and IBE-producing bacteria are robust industrial organisms, capable to utilize the sugars of the lignocellulosic biomass. Research is focused on increasing fermentation yields and the reduction of energy that is required to separate the volatile...

article

A randomized comparison of the Ambu AuraGain versus the LMA supreme in patients undergoing gynaecologic laparoscopic surgery

Ana M. Lopez, Merce Agusti, Pedro Gambus, Montserrat Pons, more

Journal of Clinical Monitoring and Computing > 2017 > 31 > 6 > 1255-1262

Second generation supraglottic airway devices providing high seal airway pressures are suitable for patients undergoing gynecologic laparoscopy. We compared the seal pressure achieved by the new Ambu AuraGain™ versus LMA Supreme™ following pneumoperitoneum in the Trendelenburg position. Sixty female patients were randomly allocated to ventilation with either the AuraGain or the Supreme. A target-controlled...

article

Aromatic Osmacyclopropenefuran Bicycles and Their Relevance for the Metal‐Mediated Hydration of Functionalized Allenes

María Batuecas, Ruth Castro‐Rodrigo, Miguel A. Esteruelas, Cristina García‐Yebra, more

Angewandte Chemie International Edition > 55 > 44 > 13749 - 13753

The aromatic osmacyclopropenefuran bicycles [OsTp{κ³‐C¹,C²,O‐(C¹H₂C²CHC(OEt)O)}(PⁱPr₃)]BF₄ (Tp=hydridotris(1‐pyrazolyl)borate) and [OsH{κ³‐C¹,C²,O‐(C¹H₂C²CHC(OEt)O)}(CO)(PⁱPr₃)₂]BF₄, with the metal fragment in a common vertex between the fused three‐ and five‐membered rings, have been prepared via the π‐allene intermediates [OsTp(η²‐CH₂=CCHCO₂Et)(OCMe₂)(PⁱPr₃)]BF₄ and [OsH(η²‐CH₂=CCHCO₂Et)(CO)(OH₂...

article

Aromatic Osmacyclopropenefuran Bicycles and Their Relevance for the Metal‐Mediated Hydration of Functionalized Allenes

María Batuecas, Ruth Castro‐Rodrigo, Miguel A. Esteruelas, Cristina García‐Yebra, more

Angewandte Chemie > 128 > 44 > 13953 - 13957

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INFONA - science communication portal

Search results for: Ana M. López

One‐dimensional metal–organic frameworks built by coordinating 2,4,6‐tris(4‐pyridyl)‐1,3,5‐triazine linker with copper nodes: CO₂ adsorption properties

Metathesis between E−C(spⁿ) and H−C(sp³) σ‐Bonds (E=Si, Ge; n=2, 3) on an Osmium‐Polyhydride

Metathesis between E−C(spⁿ) and H−C(sp³) σ‐Bonds (E=Si, Ge; n=2, 3) on an Osmium‐Polyhydride

Recent Advances in Synthesis of Molecular Heteroleptic Osmium and Iridium Phosphorescent Emitters

The red fox (Vulpes vulpes) as a potential natural reservoir of human cryptosporidiosis by Cryptosporidium hominis in Northwest Spain

Deacylative Alkylation vs. Photoredox Catalysis in the Synthesis of 3,3'‐Bioxindoles

The relationship with the voices as a dialogical experience: The role of self‐focused attention and dissociation

Advances in interferometric techniques for the analysis of the three-dimensional flow in a lid-driven cylindrical cavity

Thermal treatment and modified atmosphere packaging delay chilling injury and preserve the quality of cactus stems (Opuntia ficus‐indica Mill.) cv Atlixco

Preparation and Characterization of Graphene Oxide Aerogels: Exploring the Limits of Supercritical CO₂ Fabrication Methods

Adequacy of usual macronutrient intake and macronutrient distribution in children and adolescents in Spain: A National Dietary Survey on the Child and Adolescent Population, ENALIA 2013–2014

Retrofitting strategies for improving the energy and environmental efficiency in industrial furnaces: A case study in the aluminium sector

η¹‐Arene Complexes as Intermediates in the Preparation of Molecular Phosphorescent Iridium(III) Complexes

A two-plasmid inducible CRISPR/Cas9 genome editing tool for Clostridium acetobutylicum

Risk of Illness with Salmonella due to Consumption of Raw Unwashed Vegetables Irrigated with Water from the Bogotá River

Supercritical CO2 for the synthesis of nanometric ZIF-8 and loading with hyperbranched aminopolymers. Applications in CO2 capture

A process integration approach for the production of biological iso-propanol, butanol and ethanol using gas stripping and adsorption as recovery methods

A randomized comparison of the Ambu AuraGain versus the LMA supreme in patients undergoing gynaecologic laparoscopic surgery

Aromatic Osmacyclopropenefuran Bicycles and Their Relevance for the Metal‐Mediated Hydration of Functionalized Allenes

Aromatic Osmacyclopropenefuran Bicycles and Their Relevance for the Metal‐Mediated Hydration of Functionalized Allenes

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