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Listar por autor "Rodríguez Muñiz, Gemma María"

Mostrando ítems 1-17 de 17

"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 ...
A Combined Experimental and Theoretical Approach to the Photogeneration of 5,6-Dihydropyrimidin-5-yl Radicals in Nonaqueous Media

Aparici-Espert, Maria Isabel; Francés Monerris, Antonio; Rodríguez Muñiz, Gemma María; Roca Sanjuan, Daniel; Lhiaubet, Virginie Lyria; Miranda Alonso, Miguel Ángel (American Chemical Society, 2016-05-20)

The chemical fate of radical intermediates is relevant to understand the biological effects of radiation and to explain formation of DNA lesions. A direct approach to selectively generate the putative reactive intermediates ...
A Versatile Toolbox for Multiplexed Protein Micropatterning by Laser Lithography

Gropeanu, Mihaela; Bhagawati, Maniraj; Gropeanu, Radu A.; Rodríguez Muñiz, Gemma María; Sundaram, Subramanian; Piehler, Jacob; Campo, Aránzazu del (Wiley-VCH Verlag, 2013-03-25)

Photocleavable oligohistidine peptides (POHP) allow in situ spatial organization of multiple His-tagged proteins onto surfaces functionalized with tris(nitrilotriacetic acid) (tris-NTA). Here, a second generation of POHPs ...
Biphenyl-type sensing system in proton-rich environment by fluorescence and quantum-chemical calculations

Sadowska, Maja; Miller, Ewa; Wysocki, Stanislaw; Rodríguez Muñiz, Gemma María; Costero, Ana M.; Wandelt, Barbara (Elsevier, 2010-06)

[EN] Biphenyl derivative N-allyl-N'-(4'-nitro[1,1'-biphenyl]-4-yl)thiourea (BP1) was synthesized as a functional fluorescent sensor for protons and their photophysical properties were studied. The influence of environment ...
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, ...
El papel de los metabolitos en la fototoxicidad de filtros solares

Garcia Castellanos, Marina (Universitat Politècnica de València, 2023-09-25)

[ES] El uso de los filtros ultravioleta (UV) se ha extendido en la actualidad para millones de personas. Sin embargo, algunos de ellos no son biodegradables en su totalidad y las plantas de tratamiento de aguas residuales ...
Experimental and Theoretical Study on the Cycloreversion of a Nucleobase-Derived Azetidine by Photoinduced Electron Transfer

Fraga-Timiraos, Ana Belén; Francés-Monerris, Antonio; Rodríguez Muñiz, Gemma María; Navarrete-Miguel, Miriam; Miranda Alonso, Miguel Ángel; Roca Sanjuan, Daniel; Lhiaubet, Virginie Lyria (John Wiley & Sons, 2018-10-12)

[EN] Azetidines are interesting compounds in medicine and chemistry as bioactive scaffolds and synthetic intermediates. However, photochemical processes involved in the generation and fate of azetidine-derived radical ions ...
Hydroxyl radical as an unlikely key intermediate in the photodegradation of emerging pollutants

Rodríguez Muñiz, Gemma María; Gomis Vicens, Juan; Arques Sanz, Antonio; Amat Payá, Ana María; Marín García, Mª Luisa; Miranda Alonso, Miguel Ángel (Wiley-Blackwell, 2014-11)

In this work, a kinetic model, in combination with time-resolved experiments, is applied to assess the involvement of OH in the photodegradation of emerging pollutants (EPs) by means of advanced oxidation processes. In ...
Model Studies on the Photoreduction of the 5-Hydroxy-5,6-dihydrothymine and 5-Methyl-2-pyrimidone Moieties of (6-4) Photoproducts by Photolyase

Rodríguez Muñiz, Gemma María; Miranda Alonso, Miguel Ángel; Lhiaubet, Virginie Lyria (Blackwell Publishing, 2022-01-17)

[EN] Photorepair mechanism of (6-4) photoproducts (6-4PP) by photolyase has been the subject of active debate over the years. The initial rationalization based on electron transfer to an oxetane or azetidine intermediate ...
Modulation by Phosphonium Ions of the Activity of Mitotropic Agents Based on the Chemiluminescence of Luminols

Rodríguez Muñiz, Gemma María; Mikroulis, Theodoros; Pantelia, Anna; Rotas, Georgios; Cuquerella Alabort, Maria Consuelo; Vougioukalakis, Georgios C.; Miranda Alonso, Miguel Ángel (MDPI AG, 2022-02)

[EN] Mitochondria-targeting drugs and diagnostics are used in the monitoring and treatment of mitochondrial pathologies. In this respect, a great number of functional compounds have been made mitotropic by covalently ...
Photosensitization of DNA by 5-methyl-2pyrimidone deoxyribonucleoside: (6-4) photoproduct as a posible trojan horse

Vendrell Criado, Victoria; Rodríguez Muñiz, Gemma María; Cuquerella Alabort, Maria Consuelo; Lhiaubet, Virginie Lyria; Miranda Alonso, Miguel Ángel (Wiley-VCH Verlag, 2013-06-17)

A (photo)sensitive subject: Combined agarose gel electrophoresis and photochemical studies show that 5-methyl-2-pyrimidone (see picture), the main chromophore of (6-4) photoproducts, behaves as a DNA photosensitizer. These ...
Reactivity of Nucleosides with a Hydroxyl Radical in Non-aqueous Medium

Rodríguez Muñiz, Gemma María; Marín García, Mª Luisa; Lhiaubet, Virginie Lyria; Miranda Alonso, Miguel Ángel (Wiley-VCH Verlag, 2012-06-25)

DNA damage: The reactivity of HO. with silylated 2¿-deoxyribonucleosides was investigated in acetonitrile by means of a time-resolved technique. The obtained rate constants were in general slightly lower than those reported ...
Síntesis, caracterización y aplicación de nuevos fotocatalizadores heterogéneos derivados de eosina Y en la fotodegradación de contaminantes procedentes de la agricultura

Grimalt Ribes, Jaume (Universitat Politècnica de València, 2019-01-14)

El objetivo de este proyecto es sintetizar nuevos fotocatalizadores heterogéneos derivados de Eosina Y, y estudiar su potencial en la fotodegradación de contaminantes procedentes de la agricultura. Los materiales que se ...
Stereoselective Fluorescence Quenching in the Electron Transfer Photooxidation of Nucleobase-Related Azetidines by Cyanoaromatics

Fraga-Timiraos, Ana Belén; Rodríguez Muñiz, Gemma María; Peiro-Penalba, Vicente; Miranda Alonso, Miguel Ángel; Lhiaubet, Virginie Lyria (MDPI AG, 2016-12)

[EN] Electron transfer involving nucleic acids and their derivatives is an important field in bioorganic chemistry, specifically in connection with its role in the photo-driven DNA damage and repair. Four-membered ring ...
The (6-4) Dimeric Lesion as a DNA Photosensitizer

Vendrell Criado, Victoria; Rodríguez Muñiz, Gemma María; Lhiaubet ., Virginie Lyria; Cuquerella Alabort, Maria Consuelo; Miranda Alonso, Miguel Ángel (John Wiley & Sons, 2016)

[EN] Based on our previous investigations into the photophysical properties of the 5-methyl-2-pyrimidone (Pyo) chromophore, we now extend our studies to the photobehavior of the dimeric (6-4) thymine photoproducts (6-4 PP) ...
Topology and Excited State Multiplicity as Controlling Factors in the Carbazole-Photosensitized CPD Formation and Repair

Rodríguez Muñiz, Gemma María; Gómez-Mendoza, Miguel; Miró, Paula; García-Orduña, Pilar; SASTRE NAVARRO, GERMAN IGNACIO; Miranda Alonso, Miguel Ángel; Marín García, Mª Luisa (American Chemical Society, 2022-09-02)

[EN] Photosensitized thymine<>thymine (Thy<>Thy) formation and repair can be mediated by carbazole (Cbz). The former occurs from the Cbz triplet excited state via energy transfer, while the latter takes place from the ...
Two-photon chemistry from upper triplet states of thymine

Vendrell Criado, Victoria; Rodríguez Muñiz, Gemma María; Yamaji, Minoru; Lhiaubet, Virginie Lyria; Cuquerella Alabort, Maria Consuelo; Miranda Alonso, Miguel Ángel (American Chemical Society, 2013-11-06)

Photolysis of the benzophenone chromophore by means of high energy laser pulses has been used as a tool to populate upper thymine-like triplet states via intramolecular sensitization. These species undergo characteristic ...