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Ara es mostren els items 41-60 de 155

    • Dynamics of orientationally disordered mixed crystal sharing Cl-adamantane and CN-adamantane 

      Martínez García, Julio Cesar; Capaccioli, Simon; Díez Berart, Sergio; Tamarit Mur, José Luis; Barrio Casado, María del; Veglio, Néstor Raúl; Pardo Soto, Luis Carlos (2010-01-27)
      Article
      Accés restringit per política de l'editorial
      Orientationally disordered (OD) mixed crystals formed between cyanoadamantane (CN-A) and chloroadamantane (Cl-A) have been thermodynamically characterized by means of thermal analysis and X-ray diffraction. The dynamics ...

    • Effects of internal molecular degrees of freedom on the thermal conductivity of some glasses and disordered crystals 

      Davydova, N. A.; Baran, J.; Jezowski, A.; Krivchikov, A.I.; Korolyuk, O.A.; Sharapova, I.V.; Tamarit Mur, José Luis; Bermejo, F.J.; Pardo Soto, Luis Carlos; Rovira Esteva, Muriel; Ruíz Martín, María Dolores (2012-01-01)
      Article
      Accés restringit per política de l'editorial
      The thermal conductivity κ(T ) of the fully ordered stable phase II, the metastable phase III, the orientationally disordered (plastic) phase I, as well as the nonergodic orientational glass (OG) phase, of the glass ...

    • Effects of site-occupation disorder on the low-temperature thermal conductivity of molecular crystals 

      Krivchikov, Alexander I; Vdovichenko, Georgii A.; Korolyuk, O. A.; Bermejo, F. Javier; Pardo Soto, Luis Carlos; Tamarit Mur, José Luis; Jezowski, Andrzej; Szewczyk, Daria (2015-01-01)
      Article
      Accés obert
      The thermal conductivity of CBrnCl4-n,(n = 0,1,2) and 2-adamantanone (C10H14O) crystals which exhibit substitutional disorder has been measured for temperatures between 2 K and 150 K. Such temperatures comprise signatures ...

    • Emergence of glassy features in halomethane crystals 

      Moratalla Martín, Manuel Eduardo; Gebbia, Jonathan Fernando; Ramos Ruiz, Miguel Angel; Pardo Soto, Luis Carlos; Tamarit Mur, José Luis (American Physical Society (APS), 2019-01-02)
      Article
      Accés obert
      Both structural glasses and disordered crystals are known to exhibit anomalous thermal, vibrational, and acoustic properties at low temperatures or low energies, what is still a matter of lively debate. To shed light on ...

    • Emergence of glassy-like dynamics in an orientationally ordered phase 

      Romanini, Michela; Negrier, Philippe; Tamarit Mur, José Luis; Capaccioli, Simon; Barrio Casado, María del; Pardo Soto, Luis Carlos; Mondieig, Denise (2012-04-04)
      Article
      Accés obert
      The dynamics of a simple rigid pseudoglobular molecule (2-adamantanone) has been studied by means of dielectric spectroscopy and examined under the constraints imposed by the space group of the crystal structure determined ...

    • Enantiomer resolution by pressure increase: inferences from experimental and topological results for the binary enantiomer system (R)- and (S)-mandelic acid 

      Rietveld, Ivo B.; Barrio Casado, María del; Tamarit Mur, José Luis; Do, Bernard; Céolin, René (2011-11-02)
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      Accés restringit per política de l'editorial
      In pharmacy, racemic compounds are often problematic, because generally only one of the enantiomers possesses therapeutic activity and it is often difficult to separate them. Even though this problem is likely as old ...

    • Enhancement of the physical and chemical stability of amorphous drug-polymer mixtures via cryogenic comilling 

      Romanini, Michela; Lorente, Marta; Schammé, Benjamin; Delbreilh, Laurent; Dupray, Valérie; Coquerel, Gerard; Tamarit Mur, José Luis; Macovez, Roberto (American Chemical Society (ACS), 2018-11-27)
      Article
      Accés obert
      Amorphous dispersions of the Biclotymol antiseptic are obtained in polyvinylpyrrolidone (PVP), for different drug loadings, by comilling at temperatures below the glass transition of both components. Characterization of ...

    • Eutectic mixture formation and relaxation dynamics of coamorphous mixtures of two benzodiazepine drugs 

      Valenti, Sofia; Cazorla Silva, Claudio; Romanini, Michela; Tamarit Mur, José Luis; Macovez, Roberto (Multidisciplinary Digital Publishing Institute (MDPI), 2023-01-01)
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      Accés obert
      The formation of coamorphous mixtures of pharmaceuticals is an interesting strategy to improve the solubility and bioavailability of drugs, while at the same time enhancing the kinetic stability of the resulting binary ...

    • Experimental and topological determination of the pressure-temperature phase diagram of morniflumate, a pharmaceutical ingredient with anti-inflammatory properties 

      Barrio Casado, María del; Tamarit Mur, José Luis; Céolin, René; Robert, Benoit; Guechot, C.; Teulon, J.M.; Rietveld, Ivo B. (2017-09-01)
      Article
      Accés obert
      The pressure-temperature phase diagram of morniflumate (niflumic acid ß-morpholinoethyl ester) has been obtained by high-pressure thermal analysis. In addition, calorimetric melting data (TI¿L = (348.1 ± 0.4) K and ¿HI¿L ...

    • Experimental and topological determination of the pressure-temperature phase diagram of racemic etifoxine, a pharmaceutical ingredient with anxiolytic properties 

      Barrio Casado, María del; Allouchi, Hassan; Tamarit Mur, José Luis; Céolin, René; Berthon-Cédille, Laurence; Rietveld, Ivo B. (2019-12-18)
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      Accés obert
      Information about the solid-state properties of etifoxine has been lacking, even if the active pharmaceutical ingredient has been used for its anxiolytic properties for decennia. The crystal structure of the racemic compound ...

    • Formulation and characterization of mucoadhesive controlled release matrix tablets of captopril 

      Saurí, J.; Zachariah, Manesh; Macovez, Roberto; Tamarit Mur, José Luis; Millán, Daniel; Suñé Pou, M.; García Montoya, E.; Pérez Lozano, P.; Miñarro, M.; Ticó, J. R.; Suñé Negr, J. M. (2017-12-01)
      Article
      Accés obert
      The purpose of this study is to characterize controlled release matrix tablets of captopril and to find out the physicochemical properties that have an effect on the mucoadhesion process. The hydrophilic matrix tablets ...

    • From figh-temperature orientationally disordered mixed crystals to low-temperature complex formation in the two-component system (CH3)3CBr + Cl3CBr 

      Barrio Casado, María del; Negrier, Philippe; Tamarit Mur, José Luis; Mondieig, Denise (2011-02-02)
      Article
      Accés restringit per política de l'editorial
      The phase diagram of the two-component systems (CH(3))(3)CBr + Cl(3)CBr has been experimentally determined by means of differential scanning calorimetry and X-ray powder diffraction techniques from the low-temperature ...

    • Genuine antiplasticizing effect of water on a glass-former drug 

      Ruiz Tabbia, Guadalupe Natalia; Romanini, Michela; Hauptmann, Astrid; Loerting, Thomas; Shalaev, Evgenyi; Tamarit Mur, José Luis; Pardo Soto, Luis Carlos; Macovez, Roberto (Macmillan Publishers, 2017-08-07)
      Article
      Accés obert
      Water is the most important plasticizer of biological and organic hydrophilic materials, which generally exhibit enhanced mechanical softness and molecular mobility upon hydration. The enhancement of the molecular dynamics ...

    • Giant and reversible barocaloric effect in trinuclear spin-crossover complex Fe3(bntrz)6(tcnset)6 

      Romanini, Michela; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Aznar Luque, Araceli; Gracia Condal, Adrià; Emre, Baris; Tamarit Mur, José Luis; Planes Vila, Antoni; Manosa, L (2021-03)
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      Accés obert
      A giant barocaloric effect (BCE) in a molecular material Fe3(bntrz)6(tcnset)6 (FBT) is reported, where bntrz = 4-(benzyl)-1,2,4-triazole and tcnset = 1,1,3,3-tetracyano-2-thioethylepropenide. The crystal structure of FBT ...

    • Giant and reversible inverse barocaloric effects near room temperature in ferromagnetic MnCoGeB0.03 

      Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Kim, Jiyeob; Stern Taulats, Enric; Barrio Casado, María del; Tamarit Mur, José Luis; Mathur, N.D.; Moya Raposo, Xavier (2019-09-13)
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      Accés obert
      Hydrostatic pressure represents an inexpensive and practical method of driving caloric effects in brittle magnetocaloric materials, which display first-order magnetostructural phase transitions whose large latent heats are ...

    • Giant barocaloric effect in all-d-metal Heusler shape memory alloys 

      Aznar Luque, Araceli; Gracia Condal, Adrià; Planes Vila, Antoni; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis; Xiong, Wenxin; Cong, Daoyong; Popescu, C.; Mañosa Carrera, Lluis (American Physical Society (APS), 2019-04-16)
      Article
      Accés obert
      We have studied the barocaloric properties associated with the martensitic transition of a shape memory Heulser alloy Ni50Mn31.5Ti18.5 which is composed of all-d-metal elements. The composition of the sample has been ...

    • Giant barocaloric effects at low pressure in ferrielectric ammonium sulphate 

      Lloveras Muntané, Pol Marcel; Stern Taulats, Enric; Barrio Casado, María del; Tamarit Mur, José Luis; Crossley, Sam; Li, Wei; Pomjakushin, Vladimir; Planes Vila, Antoni; Mañosa Carrera, Lluis; Mathur, N.D.; Moya, Xavier (2015-11-01)
      Article
      Accés obert
      Caloric effects are currently under intense study due to the prospect of environment-friendly cooling applications. Most of the research is centred on large magnetocaloric effects and large electrocaloric effects, but the ...

    • Giant barocaloric effects over a wide temperature range in the superionic conductor AgI 

      Aznar Luque, Araceli; LLoveras, Pol; Romanini, Michela; Barrio Casado, María del; Tamarit Mur, José Luis; Cazorla Silva, Claudio; Errandonea Ponce, Daniel; Mathur, N.D.; Planes, Antoni; Moya, Xavier; Mañosa Carrera, Lluis (2017-11-29)
      Article
      Accés obert
      Current interest in barocaloric effects has been stimulated by the discovery that these pressure-driven thermal changes can be giant near ferroic phase transitions in materials that display magnetic or electrical order. ...

    • Giant reversible barocaloric response of (MnNiSi)(1-x)(FeCoGe)(x) (x=0.39, 0.40, 0.41) 

      Lloveras Muntané, Pol Marcel; Tapas, Samanta; Barrio Casado, María del; Dubenko, Igor; Ali, Naushad; Tamarit Mur, José Luis; Stadler, Shane (American Institute of Physics (AIP), 2019-06-01)
      Article
      Accés obert
      MnNiSi-based alloys and isostructural systems have traditionally demonstrated impressive magnetocaloric properties near room temperature associated with a highly tunable first-order magnetostructural transition that involves ...

    • Giant solid-state barocaloric effect in the Ni-Mn-In magnetic shape-memory alloy 

      Mañosa, Lluís; Gonzalez Alonso, David; Planes, Antoni; Bonot, Erell; Barrio Casado, María del; Tamarit Mur, José Luis; Aksoy, Seda; Acet, Mehmed (2010-06-01)
      Article
      Accés obert
      Solid-state materials showing giant caloric effects near room temperature could provide an alternative to cooling devices based on gas cycles. Strong emphasis has so far been dedicated to caloric effects induced by a ...