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Browsing by UPV Unit "Universitat Politècnica de València. Departamento de Química - Departament de Química"

Now showing items 1-20 of 2154

"Ab initio" synthesis of zeolites for preestablished catalytic reactions

Gallego-Sánchez, Eva María; Portilla Ovejero, Mª Teresa; Paris-Carrizo, Cecilia Gertrudis; Leon Escamilla, Efigenio Alejandro; Boronat Zaragoza, Mercedes; Moliner Marin, Manuel; Corma Canós, Avelino (American Association for the Advancement of Science (AAAS), 2017)

[EN] Unlike homogeneous catalysts that are often designed for particular reactions, zeolites are heterogeneous catalysts that are explored and optimized in a heuristic fashion. We present a methodol. for synthesizing ...
"Screening" fitoquimico y actividad fitotóxica de extractos acuosos de Artemisia absinthium L

Cuesta Ivars, Marina Elena (Universitat Politècnica de València, 2016-10-20)

[ES] Para la identificación de compuestos hidrosolubles que se consideran potencialmente alelopáticos en los extractos acuosos de Artemisia absinthium L se procedió a la recolección de material vegetal procedente de dos ...
"Snorkelling" vs. "diving" in mixed micelles probed by means of a molecular bathymeter

Rodríguez Muñiz, Gemma María; Gomez Mendoza, Miguel; Nuin Pla, Neus Edurne; Andreu Ros, María Inmaculada; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (The Royal Society of Chemistry, 2017)

[EN] A photoactive bathymeter based on a carboxylic acid moiety covalently linked to a signalling methoxynaphthalene (MNP) fluorophore has been designed to prove the concept of "snorkelling" vs. "diving" in mixed micelles ...
'From the mole to the molecule': ruthenium catalyzed nitroarene reduction studied with 'bench', high-throughput and single molecule fluorescence techniques

Carrillo, Adela I.; Stamplecoskie, Kevin G.; Marín García, Mª Luisa; Scaiano, Juan C. (Royal Society of Chemistry, 2014)

Single molecule fluorescence microscopy techniques are used to complement conventional catalysis and high-throughput experiments in order to gain a complete picture of a model reaction. In these experiments a model nitroarene ...
111 oriented gold nanoplatelets on multilayer graphene as visible light photocatalyst for overall water splitting

Mateo Mateo, Diego; Esteve Adell, Iván; Albero Sancho, Josep; Sánchez Royo, Juan Francisco; Primo Arnau, Ana María; García Gómez, Hermenegildo (Nature Publishing Group, 2016-06-06)

[EN] Development of renewable fuels from solar light appears as one of the main current challenges in energy science. A plethora of photocatalysts have been investigated to obtain hydrogen and oxygen from water and solar ...
11B-MAS NMR approach to the boron adsorption mechanism on a glucose-functionalised mesoporous silica matrix

Sanfeliu Cano, Cristina; Martínez-Máñez, Ramón; Sancenón Galarza, Félix; Soto Camino, Juan; Amorós, Pedro; Azaïs, T.; Marcos Martínez, María Dolores (Elsevier, 2018)

[EN] Boron chemistry has raised much interest because, despite the difference between necessities and toxicity being very narrow, it is still widely used in industrial processes. In a previous work we reported an adsorbent ...
185 Nm Photoreduction of CO2 to methane by water. Influence of the Presence of a Basic catalyst

Sastre Calabuig, Francesc; Corma Canós, Avelino; García Gómez, Hermenegildo (American Chemical Society, 2012-08-29)

Photolysis of CO2 at 185 nm using a Hg lamp in the presence of H-2 or H2O leads to the formation of CH4 (after an induction period) and a lesser amount of CO. Using H-2 gas as reducing agent, up to 40% conversion was ...
2'-Methoxyacetophenone as DNA photosensitiser for mono and biphotonic processes

Rodríguez Alzueta, Ofelia (Universitat Politècnica de València, 2021-01-17)

[ES] La luz solar es necesaria para la vida en la Tierra y sus efectos beneficiosos están fuera de toda duda. Sin embargo, la radiación ultravioleta (UV), que forma parte del espectro solar, puede resultar dañina para los ...
2,4-dinitrophenyl ether-containing chemodosimeters for the selective and sensitive 'in vitro' and 'in vivo' detection of hydrogen sulfide

El Sayed Shehata Nasr, Sameh; De La Torre, C,; Santos Figueroa, Luis E.; Martínez-Máñez, Ramón; Sancenón Galarza, Félix; Orzáez, M.; Costero, Ana M.; Parra, Margarita; Gil, Salvador (Taylor & Francis, 2015)

[EN] Four probes (i.e. D1¿D4) for the selective and sensitive fluorogenic detection of HS2 have been prepared and characterised. HEPES (10 mM, pH 7.4)¿DMSO 99:1 v/v solutions of D1¿D4 are essentially non-fluorescent. ...
3D defective graphenes with subnanometric porosity obtained by soft-templating following zeolite procedures

Peng, Lu; Doménech-Carbó, Antonio; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (The Royal Society of Chemistry, 2019-12-01)

[EN] By applying the well-known templating mechanism employed for the synthesis of mesoporous silicas to the structuration of sodium alginate, a novel defective 3D tubular graphene material (graphenolite) with hierarchical ...
3D defective graphenes with subnanometric porosity obtained by soft-templating following zeolite procedures

Peng, Lu; Domenech-Carbo, Antonio; Primo Arnau, Ana Maria; García Gómez, Hermenegildo (Royal Society of Chemistry, 2019-12-01)

[EN] By applying the well-known templating mechanism employed for the synthesis of mesoporous silicas to the structuration of sodium alginate, a novel defective 3D tubular graphene material (graphenolite) with hierarchical ...
4-(4,5-Diphenyl-1H-imidazole-2-yl)-N,N-dimethylaniline-Cu(II) complex, a highly selective probe for glutathione sensing in water-acetonitrile mixtures

Essam Elsayed-Moham Okda, Hazem; El Sayed, Sameh; Ferreira, R. Cristina M.; Costa, Susana P.G.; Raposo, M.M.; Martínez-Máñez, Ramón; Sancenón Galarza, Félix (Elsevier, 2018-12)

[EN] The imidazole derivative 4-(4,5-diphenyl-1H-imidazol-2-yl)-N,N-dimethylaniline (probe 1) formed a highly coloured and non-emissive 1:1 stoichiometry complex with Cu(II) in water-acetonitrile 1:1 (v/v) solutions. Among ...
A 1-to-2 demultiplexer hybrid nanocarrier for cargo delivery and activation

de Luis-Fernández, Beatriz; García-Fernández, Alba; Llopis-Lorente, Antoni; Villalonga, Reynaldo; Sancenón Galarza, Félix; Martínez-Máñez, Ramón (The Royal Society of Chemistry, 2020-09-07)

[EN] A biocomputing strategy implemented in hybrid nanocarriers for controlled cargo delivery is described. The nanodevice consists of enzyme-functionalized Janus Au-mesoporous silica nanoparticles, which behave as an ...
A Bifunctional Metal/Acid Catalyst for One-Pot Multistep Synthesis of Pharmaceuticals

López Prado, Mª Victoria; Sabater Picot, Mª José; Corma Canós, Avelino (Pleiades Publishing, 2020-04)

[EN] One inhibitor of the fatty acid transporter FATP4 was synthesized in a three steps one-pot process in the presence of a bifunctional metal/acid catalyst. This molecule which has potential interest for the treatment ...
A bifunctional palladium-acid solid catalyst performs the direct synthesis of cyclohexylanilines and dicyclohexylamines from nitrobenzenes

Rubio Marqués, Paula; Leyva Perez, Antonio; Corma Canós, Avelino (Royal Society of Chemistry, 2013)

[EN] Nitroderivatives are transformed to cyclohexylanilines at room temperature in good yields and selectivity via a hydrogenation-amine coupling cascade reaction using Pd nanoparticles on carbon as a catalyst and a Bronsted acid.
A Boron Dipyrromethene (BODIPY)-Based Cu-II-Bipyridine Complex for Highly Selective NO Detection

Juárez, Luis A.; Barba Bon, Andrea; Costero Nieto, Ana María; Martínez Mañez, Ramón; Sancenón Galarza, Félix; Parra Álvarez, Margarita; Gaviña Costero, Pablo; Terencio Silvestre, María Carmen; Alcaraz Tormo, María José (2015)

[EN] A BODIPY-containing Cu-II-bipyridine complex for the simple selective fluorogenic detection of NO in air and in live cells is reported. The detection mechanism is based on NO-promoted Cu-II to Cu-I reduction, followed ...
A chalcone-based highly selective and sensitive chromofluorogenic probe for trivalent metal cations

Santos Figueroa, Luis Enrique; Llopis Lorente, Antoni; Royo Calvo, Santiago; Sancenón Galarza, Félix; Martínez-Máñez, Ramón; Costero, Ana M.; Gil Grau, Salvador; Parra Álvarez, Margarita (Wiley-VCH Verlag, 2015-05)

[EN] Anew chalcone-based probe for the chromofluorogenic sens-ing of trivalent (Al3 +,Fe3+,Cr3+,Ga3+,In3+and As3 +)overmono-and divalent cationsand anionsisreported. In the presence of trivalent metal cations,the probe was ...
A chemosensor bearing sulfonyl azide moieties for selective chromo-fluorogenic hydrogen sulfide recognition in aqueous media and in living cells

Santos Figueroa, Luis Enrique; De la Torre Paredes, Cristina; El Sayed Shehata Nasr, Sameh; Sancenón Galarza, Félix; Martínez-Máñez, Ramón; Costero Nieto, Ana María; Gil Grau, Salvador; Parra, Margarita (Wiley-VCH Verlag, 2014-03)

A simple chemodosimeter based on a sulfonyl azide dye (1-Az), which displayed a highly selective response toward hydrogen sulfide anion in mixed aqueous media, was synthesised and characterised. Addition of hydrogen sulfide ...
A Chromo-Fluorogenic Synthetic Canary for CO Detection Based on a Pyrenylvinyl Ruthenium(II) Complex

Moragues Pons, María Esperanza; Toscani, Anita; Sancenón Galarza, Félix; Martínez-Máñez, Ramón; White, Andrew; Wilton-Ely, James D. E. T. (American Chemical Society, 2014-08-27)

The chromo-fluorogenic detection of carbon monoxide in air has been achieved using a simple, inexpensive system based on ruthenium(II). This probe shows exceptional sensitivity and selectivity in its sensing behavior ...
A Chromogenic Probe for the Selective Recognition of Sarin and Soman Mimic DFP

El Sayed Shehata Nasr, Sameh; Pascual Vidal, Lluís; Agostini, Alessandro; Martínez-Máñez, Ramón; Sancenón Galarza, Félix; Costero Nieto, Ana María; Parra Álvarez, Margarita; Gil Grau, Salvador (Wiley Open Access, 2014-08)

The synthesis, characterization and sensing features of a novel probe 1 for the selective chromogenic recognition of diisopropylfluorophosphate (DFP), a sarin and soman mimic, in 99:1 (v/ v) water/acetonitrile and in ...