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Browsing by Author "Marín García, María Luisa"

Now showing items 1-20 of 79

"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 ...
A comprehensive mechanistic study on the visible light photocatalytic reductive dehalogenation of haloaromatics mediated by Ru(bpy)3Cl2

Marin Melchor, Mireia; Miranda Alonso, Miguel Ángel; Marín García, Mª Luisa (The Royal Society of Chemistry, 2017-10-21)

[EN] Visible light photoredox catalysis is emerging as a versatile technique for a great variety of chemical transformations. Specifically,Ru(bpy)(3)(2+) has been widely used as a transition metal-based photocatalyst; ...
A continuous-flow catalytic process with natural hematite-alginate beads for effective water decontamination and disinfection: Peroxymonosulfate activation leading to dominant sulfate radical and minor non-radical pathways

Mohammadi, Samira; Moussavi, Gholamreza; Shekoohiyan, Sakine; Marín García, Mª Luisa; Bosca Mayans, Francisco; Giannakis, Stefanos (Elsevier, 2021-05-01)

[EN] A natural, ferruginous material, Hormuz Red Soil (HRS), was used as a catalyst for decontamination and disinfection via PMS activation. The HRS was fully characterized (morphological, structural, chemical properties) ...
A mechanistic study on photocatalysis by thiapyrylium salts. Photodegradationof dimethoate, alachlor and pyrimethanil under simulated sunlight

Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (Elsevier, 2012-07-23)

Photodegradation of dimethoate, alachlor, and pyrimethanil using a thiapyrilium salt (TPTP+) as photocatalyst was performed under simulated sunlight. The photocatalyst removes preferentially pyrimethanil (45% after 60 min ...
A mechanistic study on the oxidative photodegradation of 2,6-dichlorodiphenylamine-derived drugs: Photo-Fenton versus photocatalysis with a triphenylpyrylium salt

Miró Richart, Paula; Arques Sanz, Antonio; Amat Payá, Ana María; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (Elsevier, 2013-08)

Emerging pollutants, such as drugs, are considered a potential hazard to the environment, and therefore advanced oxidation processes are being considered candidate tools for their elimination. Here, different oxidation ...
A mechanistic study on the potential of quinolinium salts as photocatalysts for the abatement of chlorinated pollutants

Martínez-Haya, Rebeca; Sabater Marco, Consuelo; Castillo López, María-Ángeles; Miranda Alonso, Miguel Ángel; Marín García, Mª Luisa (Elsevier, 2018-06)

[EN] Photocatalytic degradation of three highly chlorinated contaminants, namely 2,4,6-trichlorophenol (TCP), 2,4,6-trichloroanisole (TCA) and 5-chloro-2-(2,4-dichlorophenoxy)phenol (triclosan, TCS) has been investigated ...
A novel synthetic approach to tyrosine dimers based on pterin photosensitization

Reid, Lara O.; Castaño, Carolina; Dantola, M L.; Lhiaubet ., Virginie Lyria; Miranda Alonso, Miguel Ángel; Marín García, Mª Luisa; Thomas, A. H. (Elsevier, 2017)

[EN] Oxidative damage to proteins leads to a variety of modifications that are markers of pathogenesis. One of the most important modifications is the dityrosine (Tyr(2)) cross-link, resulting from an oxidative covalent ...
A photochemical and theoretical study of the triplet reactivity of furano- and pyrano-1,4-naphthoquionones towards tyrosine and tryptophan derivatives

Teixeira, Rodolfo I.; Goulart, Juliana S.; Correa, Rodrigo J.; Garden, Simon J.; Ferreira, Sabrina B.; Netto-Ferreira, Jose Carlos; Ferreira, Vitor F.; Miro, Paula; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel; De Lucas, Nanci C. (The Royal Society of Chemistry, 2019)

[EN] The photochemical reactivity of the triplet state of pyrano- and furano-1,4-naphthoquinone derivatives ( 1 and 2) has been examined employing nanosecond laser flash photolysis. The quinone triplets were efficiently ...
A photophysical approach to investigate the photooxidation mechanism of pesticides: Hydroxyl radical versus electron transfer

Marín García, Mª Luisa; Lhiaubet, Virginie Lyria; Santos-Juanes Jordá, Lucas; Soler Escoda, Juan Miguel; Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Miranda Alonso, Miguel Ángel (Elsevier, 2011-03-14)

[EN] The role of hydroxyl radical in different solar photocatalytic processes, namely photo-Fenton, titanium dioxide-based oxidation and organic photocatalysis (triphenylpyrylium) has been investigated. Using a methodology ...
A Time-Resolved Study on the Reactivity of Alcoholic Drinks with the Hydroxyl Radical

Rodriguez-Muniz, Gemma M.; Miranda Alonso, Miguel Ángel; Marín García, Mª Luisa (MDPI AG, 2019-01-02)

[EN] Reactive oxygen species (ROS) can provoke damage to cells, where their concentrations are regulated by antioxidants. As the hydroxyl radical (center dot OH) is the most oxidizing ROS, we have focused our attention on ...
Compuestos orgánicos como fotocatalizadores solares para la eliminación de contaminantes en medios acuosos: aplicaciones y estudios fotofísicos

Santos-Juanes Jordá, Lucas (Editorial Universitat Politècnica de València, 2008-07-23)

Como consecuencia de los problemas derivados de la escasez de agua, se está despertando un gran interés en el desarrollo de nuevas técnicas para la depuración de aguas. Una de estas novedosas técnicas es la fotocatálisis ...
Copper nanoparticle heterogeneous catalytic 'click' cycloaddition confirmed by single-molecule spectroscopy

Decan, Matthew R; Impellizzeri, Stefania; Marín García, Mª Luisa; SCAIANO, J. (Nature Publishing Group: Nature Communications, 2014-08)

Colloidal or heterogeneous nanocatalysts can improve the range and diversity of Cu(I)catalysed click reactions and facilitate catalyst separation and reuse. Catalysis by metal nanoparticles raises the question as to whether ...
Dansyl derivatives of cholic acid as tools to build speciation diagrams for sodium chotale aggregation

Gómez Mendoza, Miguel; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (American Chemical Society, 2011-03-15)

Three ¿uorescent cholic acid derivatives incorporating the dansyl chromophore at positions 3R, 3ß, and 7Rhave been successfully employed to build the speciation diagram of sodium cholate by means of steady-state and ...
Dansyl labeling to modulate the relative affinity of bile acids for the binding sites of human serum albumin

Rohacova, Jana; Sastre Navarro, German Ignacio; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (American Chemical Society, 2011-09-08)

[EN] Binding of natural bile acids to human serum albumin (HSA) is an important step in enterohepatic circulation and provides a measure of liver function. In this article, we report on the use of four dansyl (Dns) derivatives ...
Dansyl-labeled cholic acid as a tool to build speciation diagrams for the aggregation of bile acids

Gómez Mendoza, Miguel; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (American Chemical Society, 2012-12-27)

Bile acids (BAs) are a family of natural steroids biosynthesized from cholesterol in the liver that tend to form aggregates in solution. A fluorescent derivative of cholic acid, namely 3 alpha-Dns-ChA, was employed as a ...
Degradación de contaminantes de la industria del corcho fotocatalizada por sales de pirilio y tiapirilio. Estudios fotoquímicos y fotofísicos

Martínez Haya, Rebeca (Universitat Politècnica de València, 2015-07-27)
Desarrollo de catalizadores para la mejora del índice de cetano en fracciones diesel de baja calidad mediante apertura selectiva de anillos nafténicos

Faubel Vidagany, Joan Miquel (Universitat Politècnica de València, 2016-10-07)

[ES] Uno de los principales problemas a los que se enfrentan las compañías de refino en la UE es la necesidad de aumentar la capacidad de producción de combustible diesel con el fin satisfacer la creciente demanda de este ...
Desarrollo de nuevos fotocatalizadores de dióxido de titanio para la fotodegradación de contaminantes en aguas utilizadas para el tratamiento post-cosecha de frutas

Valero Muñoz, María del Carmen (Universitat Politècnica de València, 2018-01-09)

[ES] En este proyecto se han sintetizado tres nuevos fotocatalizadores todos ellos formados por dióxido de titanio sobre microesferas de sílice, y a dos de estos fotocatalizadores se les han depositado nanopartículas de ...
Desarrollo de nuevos fotocatalizadores heterogéneos basados en colorantes orgánicos para la fotodegradación de contaminantes fenólicos

Bañón Juares, Héctor (Universitat Politècnica de València, 2019-01-23)

El objetivo de este proyecto es sintetizar nuevos fotocatalizadores heterogéneos basados en colorantes orgánicos, y estudiar su potencial en la fotodegradación de contaminantes fenólicos como el propio fenol, el 2-fenilfenol, ...