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Listar por autor "Martínez Mañez, Ramón"

Mostrando ítems 1-20 de 432

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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 ...
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. ...
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 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 chemical circular communication network at the nanoscale

de Luis-Fernández, Beatriz; Morella-Aucejo, Ángela; Llopis-Lorente, Antoni; Godoy-Reyes, Tania Mariel; Villalonga, Reynaldo; Aznar, Elena; Sancenón Galarza, Félix; Martínez-Máñez, Ramón (The Royal Society of Chemistry, 2021-01-28)

[EN] In nature, coordinated communication between different entities enables a group to accomplish sophisticated functionalities that go beyond those carried out by individual agents. The possibility of programming and ...
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 ...
A chromogenic sensor array for boiled marinated turkey freshness monitoring

Salinas Soler, Yolanda; Ros Lis, José Vicente; Vivancos Bono, José Luís; Martínez Mañez, Ramón; Aucejo Romero, Susana; Herranz, Nuria; Lorente, Inmaculada; García García, Emilio (Elsevier, 2014-02)

A chromogenic array for monitoring boiled marinated turkey meat freshness in a modified packaging atmosphere (30% CO2, 70% N2) has been developed. The chromogenic array was combined with commodity tools such as digital ...
A Colorimetric Probe for the Selective Detection of Norepinephrine Based on a Double Molecular Recognition with Functionalized Gold Nanoparticles

Godoy-Reyes, Tania Mariel; Costero, Ana M.; Gaviña, Pablo; Martínez-Máñez, Ramón; Sancenón Galarza, Félix (American Chemical Society, 2019-03-22)

[EN] A simple colorimetric probe for the selective and sensitive detection of neurotransmitter norepinephrine (NE), an important biomarker in the detection of tumors such as pheochromocytoma and paraganglioma, is described. ...
A derivatization approach using pyrylium salts for the sensitive and simple determination of sulfide in spring water by high performance liquid chromatography

Rembisz, Zaneta; Bzdurska, Dorota; Obiedzinska, Justyna; Martínez-Máñez, Ramón; Zakrzewski, Robert (Elsevier, 2015-08-14)

A high-performance liquid chromatography method based on pre-column derivatization with thepyrylium salts (4-[p-(N,N-dimethylamino)phenyl]-2,6-diphenylpyrylium perchlorate (LN1) and 2,4,6-triphenylpyrylium tetrafluoroborate ...
A dual channel sulphur-containing a macrocycle functionalised BODIPY probe for the detection of Hg(II) in a mixed aqueous solution

Lo-Presti, Maria; Martínez-Máñez, Ramón; Ros-Lis, José Vicente; Batista, Rosa M. F.; Costa, Susana P. G.; Raposo, M. Manuela M.; Sancenón Galarza, Félix (The Royal Society of Chemistry, 2018)

[EN] We report herein the synthesis and chromo-fluorogenic behaviour of a new probe 1 containing a boron-dipyrromethene (BODIPY) unit electronically connected with a dithia-dioxa-aza macrocycle. Acetonitrile and ...
A fluorogenic capped mesoporous aptasensor for gluten detection

Pla, Luis; Martínez-Bisbal, M.Carmen; Aznar, Elena; Sancenón Galarza, Félix; Martínez-Máñez, Ramón; Santiago Felipe, Sara (Elsevier, 2021-02-22)

[EN] Celiac disease is a complex and autoimmune disorder caused by the ingestion of gluten affecting almost 1% of global population. Nowadays an effective treatment does not exist, and the only way to manage the disease ...
A gated material as immunosensor for in-tissue detection of IDH1-R132H mutation in gliomas

Pla, Luis; Sancenón Galarza, Félix; Martínez-Bisbal, M.Carmen; Prat-Acín, Ricardo; Galeano-Senabre, Inmaculada; Botello-Marabotto, Marina Dolores; Palanca-Suela, Sarai; Aznar, Elena; Santiago Felipe, Sara; Martínez-Máñez, Ramón (Elsevier, 2021-10-15)

[EN] A nanodevice consisted on nanoporous anodic alumina (NAA) supports functionalized with specific and selective antibody-based gatekeepers for the detection of IDH1-R132H mutant enzyme is here reported. Molecular profile ...
A glutathione disulfide-sensitive Janus nanomachine controlled by an enzymatic AND logic gate for smart delivery

Mayol, Beatriz; Diez-Sánchez, Paula; Sánchez, Alfredo; De La Torre, Cristina; Villalonga, Anabel; Lucena-Sánchez, Elena; Sancenón Galarza, Félix; Martinez-Ruiz, Paloma; Vilela, Diana; Martínez-Máñez, Ramón; Villalonga, Reynaldo (The Royal Society of Chemistry, 2021-11-18)

[EN] This work describes the assembly of a novel enzyme-controlled nanomachine operated through an AND Boolean logic gate for on-command delivery. The nanodevice was constructed on Au-mesoporous silica Janus nanoparticles ...
A humid electronic nose based on pulse voltammetry: A proof-of-concept design

Bataller Prats, Román; Campos Sánchez, Inmaculada; Alcañiz Fillol, Miguel; Gil Sánchez, Luís; García Breijo, Eduardo; Martínez Mañez, Ramón; Pascual Vidal, Lluís; Soto Camino, Juan; Vivancos, José-Luís (Elsevier, 2013-09)

[EN] We report herein the design, manufacture and use of a "humid electronic nose" prototype based on voltammetric techniques. It consists of an array of four working electrodes (i.e., Au, Pt, Ir and Rh) housed inside a ...
A l-glutamate-responsive delivery system based on enzyme-controlled self-immolative arylboronate-gated nanoparticles

Godoy-Reyes, Tania Mariel; Llopis-Lorente, Antoni; García-Fernández, Alba; Gaviña, Pablo; Costero, Ana M.; Villalonga, Reynaldo; Sancenón Galarza, Félix; Martínez-Máñez, Ramón (Royal Society of Chemistry, 2019-04-07)

[EN] We report herein a l-glutamate (l-Glu)-responsive delivery system. It consists of Janus Au-mesoporous silica (MS) nanoparticles functionalized with l-glutamate oxidase on the Au face and with self-immolative arylboronate ...
A method of pulse array design for voltammetric electronic tongues

Campos Sánchez, Inmaculada; Alcañiz Fillol, Miguel; Masot Peris, Rafael; Soto Camino, Juan; Martínez Mañez, Ramón; Vivancos, José-Luís; Gil Sánchez, Luís (Elsevier, 2012-01-03)

This paper proposes a reasonable methodology for the design of pulse arrays applied in classification and quantification techniques based on the use of pulse voltammetric electronic tongues. As model problem we designed a ...