- -

Listar por autor "Parra Álvarez, Margarita"

RiuNet: Repositorio Institucional de la Universidad Politécnica de Valencia

Listar por autor "Parra Álvarez, Margarita"

Ordenar por:Orden:Resultados:

  • thumb
    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. ...
  • Icon
    3-Formyl-BODIPY Phenylhydrazone as a Chromo-Fluorogenic Probe for Selective Detection of NO2 (g) 
    Juarez, Luís Alberto; Costero Nieto, Ana María; Parra Álvarez, Margarita; Gaviña, Pablo; Gil Grau, Salvador (Wiley, 2016-06-13)
    Anew colorimetric and fluorogenic probe,based on a3-formyl boron dipyrromethene (BODIPY)phe-nylhydrazone, for the sensitive and selectivedetectionNO2(g) has been prepared. The probeinsolution experi-ences aremarkablehypsochromic ...
  • Icon
    5,5 '-Bis-vanillin derivatives as discriminating sensors for trivalent cations 
    Costero Nieto, Ana María; Gil Grau, Salvador; Parra Álvarez, Margarita; Mancini, Pedro Maximo Emilio; Kneeteman, Maria N.; Quindt, Matias I. (Elsevier, 2015-06-24)
    [EN] Several bis-vanillin derivatives containing semicarbazone moieties have been prepared and used in discriminating trivalent cations. The prepared probes are readily obtained and they are usually highly crystalline. ...
  • Icon
    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 ...
  • Icon
    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 ...
  • thumb
    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 ...
  • Icon
    A Molecular Probe for the Highly Selective Chromogenic Detection of DFP, a Mimic of Sarin and Soman Nerve Agents 
    Gotor Candel, Raul Jesús; Costero Nieto, Ana María; Gil Grau, Salvador; Parra Álvarez, Margarita; Martínez Mañez, Ramón; Sancenón Galarza, Félix (Wiley-VCH Verlag, 2011-10-17)
    Lethal-weapon visualization: A novel triarylmethanol derivative, which is able to colorimetrically distinguish diisopropylfluorophosphate (DFP; a mimic of Sarin and Soman) from other nerve-agent simulants, is reported (see ...
  • Icon
    A new fluorescent "turn-on" chemodosimeter for the detection of hydrogen sulfide in water and living cells 
    EL SAYED SHIHATA NASR, SAMEH; Torre, Cristina de la; Santos Figueroa, Luis Enrique; Pérez Payá, Enrique; Martínez Mañez, Ramón; Sancenón Galarza, Félix; Costero, Ana M.; Parra Álvarez, Margarita; Gil Grau, Salvador (Royal Society of Chemistry, 2013-12-28)
    [EN] A new fluorescent turn-on probe for the selective detection of hydrogen sulfide in water and living cells based on a 8-hydroxyquinoline fluorophore functionalized with a 2,6-dinitrophenyl ether moiety has been developed.
  • thumb
    A New Highly Selective Chromogenic and Fluorogenic Chemosensor for Copper (II) 
    Quindt, M. I.; Gutiérrez, Leandro G.; Kneeteman, M. N.; Mancini, P.M.E.; Parra Alvarez, Margarita; Gil Grau, Salvador; Costero, Ana M. (Bentham Science, 2018)
    [EN] A new fluorogenic and chromogenic probe (L) for the selective, sensitive and naked-eye detection of Cu2+ is reported. Complexation constant, complex stoichiometry and quantum chemical (DFT) calculation for Cu2+ complex ...
  • Icon
    A new phenanthrene-based bis-oxime chemosensor for Fe(III) and Cr(III) discrimination 
    Bravo, Virginia; Gil Grau, Salvador; Costero Nieto, Ana María; Kneeteman, Maria N.; Llaosa, Úrsula; Mancini, Pedro Maximo Emilio; Ochando Gómez, Luis Enrique; Parra Álvarez, Margarita (Elsevier, 2012-06-17)
    [EN] The synthesis of two new 2,7-disubstituted phenanthrene-based bis oximes is described. The ability of these two compound for complexing heavy metal cations have been studied and complexation constants and complex ...
  • Icon
    A new selective fluorogenic probe for trivalent cations 
    Barba Bon, Andrea; Costero, Ana; Gil Grau, Salvador; Parra Álvarez, Margarita; Soto Camino, Juan; Martínez Mañez, Ramón; Sancenón Galarza, Félix (Royal Society of Chemistry, 2012)
    [EN] A new selective chromo-fluorogenic probe for Fe 3+, Cr 3+ and Al 3+ is reported. Detection limits are in the ¿M range and the fluorogenic sensing ability could be observed by the naked eye when illuminated with UV-light. ...
  • thumb
    A New Simple Chromo-fluorogenic Probe for NO2 Detection in Air 
    Juarez, Luis A.; Costero, Ana M.; Sancenón Galarza, Félix; Martínez-Máñez, Ramón; Parra Álvarez, Margarita; Gaviña Costero, Pablo (John Wiley & Sons, 2015)
    [EN] A new chromo-fluorogenic probe, consisting of a biphenyl derivative containing both a silylbenzyl ether and a N,N-dimethylamino group, for NO2 detection in the gas phase has been developed. A clear colour change from ...
  • Icon
    A Simple System Based on a Thiourea-Modified Fluorescein for w-Amino Acid Discrimination 
    Marti, A.; Costero Nieto, Ana María; Gaviña, P.; Parra Álvarez, Margarita (Wiley-VCH Verlag, 2015-09-22)
    A thiourea-modified fluorescein derivative was synthesized by reaction of fluorescein isothiocyanate with 2-(2-aminoethoxy)ethan-1-ol. UV/Vis absorption and fluorescence emission spectroscopy studies demonstrated that this ...
  • thumb
    Amidase-responsive controlled release of antitumoral drug into intracellular media using gluconamide-capped mesoporous silica nanoparticles 
    Candel Busquets, Inmaculada; Aznar Gimeno, Elena; Mondragón Martínez, Laura; De la Torre Paredes, Cristina; Martínez Mañez, Ramón; Sancenón Galarza, Félix; Marcos Martínez, María Dolores; Amoros del Toro, Pedro Jose; Guillem, Carmen; Pérez Payá, Enrique; Costero Nieto, Ana María; Gil Grau, Salvador; Parra Álvarez, Margarita (Royal Society of Chemistry, 2012-10-02)
    MCM-41 silica nanoparticles were used as inorganic scaffolding to prepare a nanoscopic-capped hybrid material S1, which was able to release an entrapped cargo in the presence of certain enzymes, whereas in the absence of ...
  • thumb
    Aryl carbinols as nerve agent probes. Influence of the conjugation on the sensing properties 
    Royo Calvo, Santiago; Gotor Candel, Raul Jesús; Costero Nieto, Ana María; Parra Álvarez, Margarita; Gil Grau, Salvador; Martínez Mañez, Ramón; Sancenón Galarza, Félix (Royal Society of Chemistry, 2012-04-13)
    Two new aryl carbinols (1 and 3) have been synthesised and characterised and their ability as OFF-ON probes for the chromogenic detection of the nerve agent simulant in acetonitrile has been tested. In addition compound 2 ...
  • Icon
    Binding and Fluorescent Sensing of Di-carboxylates by a Bis(calix[4]pyrrole)-Substituted BODIPY Dye 
    Gotor Candel, Raul Jesús; Costero Nieto, Ana María; Gaviña, P.; Gil Grau, Salvador; Parra Álvarez, Margarita (Wiley-VCH Verlag, 2013-03)
    A bis(calix[4]pyrrole)-substituted BODIPY ditopic receptor 1 has been synthesised and characterised. The binding and sensing properties of 1 towards several aliphatic and aromatic dicarboxylates have been evaluated by using ...
  • thumb
    Biphenyl derivatives containing trimethylsilyl benzyl ether or oxime groups as probes for NO2 detection 
    Juárez, L.A.; Costero, Ana M.; Parra, Margarita; Gil, Salvador; Ródenas, J.; Sancenón Galarza, Félix; Martínez-Máñez, Ramón (The Royal Society of Chemistry, 2016)
    [EN] Four probes based in the use of a biphenyl moiety and functionalized with trimethylsilyl benzyl ether (P1 and P3) and oxime (P2 and P4) groups have been prepared and tested as optical probes for the detection of NO2. ...
  • Icon
    Boolean operations mediated by an ion-pair receptor of a multi-readout molecular logic gate 
    Gotor Candel, Raul Jesús; Costero, Ana M.; Gil Grau, Salvador; Parra, Margarita; Gaviña, Pablo; Rurack, Knut (Royal Society of Chemistry, 2013)
    A heteroditopic BODIPY dye that performs all basic Boolean operations with a cation (K+) and an anion (F-) as inputs and absorption, transmission and fluorescence as outputs is described. The molecular logic gate can also ...
  • thumb
    Chromogenic Chemodosimeter Based on Capped Silica Particles to Detect Spermine and Spermidine 
    Barros, Mariana; López-Carrasco, Alejandro; Amorós, Pedro; Gil Grau, Salvador; Gaviña, Pablo; PARRA ALVAREZ, MARGARITA; El Haskouri, Jamal; TERENCIO SILVESTRE, Mº CARMEN; Costero, Ana M. (MDPI AG, 2021-03)
    [EN] A new hybrid organic-inorganic material for sensing spermine (Spm) and spermidine (Spd) has been prepared and characterized. The material is based on MCM-41 particles functionalized with an N-hydroxysuccinimide ...
  • Icon
    Chromogenic, specific detection of the nerve-agent mimic DCNP (a Tabun mimic) 
    Royo Calvo, Santiago; Costero Nieto, Ana María; Parra Álvarez, Margarita; Gil Grau, Salvador; Martínez Mañez, Ramón; Sancenón Galarza, Félix (Wiley-VCH Verlag, 2011-06-14)
    Nerve-gas detection: An azo dye with pyridine and aniline moieties can selectively detect diethylcyanophosphonate (DCNP) from diisopropylfluorophosphate (DFP) and diethylchlorophosphate (DCP) by colour changes. Upon addition ...