Ara es mostren els items 1-20 de 107

    • [60]Fullerene for medicinal purposes, a purity criterion towards regulatory considerations 

      Keykhosravi, Sanaz; Rietveld, Ivo B.; Couto, Diana; Tamarit Mur, José Luis; Barrio Casado, María del; Céolin, René; Moussa, Fathi (Multidisciplinary Digital Publishing Institute (MDPI), 2019-08-01)
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      Since the early nineties countless publications have reported promising medicinal applications for [60]fullerene (C60) related to its unparalleled affinity towards free radicals. Yet, until now no officially approved ...
    • A facile approach to hydrophilic oxidized fullerenes and their derivatives as cytotoxic agents and supports for nanobiocatalytic systems 

      Zygouri, Panagiota; Spyrou, Konstantinos; Mitsari, Efstratia; Barrio Casado, María del; Macovez, Roberto; Patila, Michaela; Stamatis, Haralambo; Verginadis, Ioannis; Velalopoulou, Anastasia; Evangelou, Angelos; Sideratou, Zili; Gournis, Dimitrios; Rudolf, Petra (Nature, 2020-12-01)
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      A facile, environment-friendly, versatile and reproducible approach to the successful oxidation of fullerenes (oxC60) and the formation of highly hydrophilic fullerene derivatives is introduced. This synthesis relies on ...
    • A new intermediate polymorph of 1-fluoro-adamantane and its second-order-like transition toward the low temperature phase 

      Yuan, Lina; Clevers, Simon; Burel, Antoine; Negrier, Philippe; Barrio Casado, María del; Ben Hassine, Bacem; Mondieig, Denise; Dupray, Valérie; Tamarit Mur, José Luis; Coquerel, Gerard (2017-06-07)
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      Phase transitions of 1-fluoro-adamantane have been thoroughly investigated by temperature-resolved second harmonic generation (TR-SHG) and X-ray powder diffraction (XRPD). A new polymorph - an intermediate centrosymmetric ...
    • A thermodynamically consistent phase diagram of a trimorphic pharmaceutical, L-tyrosine ethyl ester, based on limited experimental data 

      Nicolaï, Béatrice; Barrio Casado, María del; Lloveras Muntané, Pol Marcel; Polian, Alain; Itié, Jean-Paul; Tamarit Mur, José Luis; Rietveld, Ivo B. (Royal Society of Chemistry (RSC), 2018-08-29)
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    • An integrated view of theiInfluence of temperature, pressure, and humidity on the stability of trimorphic cysteamine hydrochloride 

      Gana, Inès; Barrio Casado, María del; Ghaddar, Carine; Nicolai, Beatrice; Do, Bernard; Tamarit Mur, José Luis; Safta, Fathi; Rietveld, Ivo B. (2015-07-01)
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      Understanding the phase behavior of pharmaceuticals is important for dosage form development and regulatory requirements, in particular after the incident with ritonavir. In the present paper, a comprehensive study of the ...
    • An order-disorder phase transition in the van der Waals based solvate of C60 and CClBrH2 

      Ye, Jin; Barrio Casado, María del; Céolin, René; Qureshi, Navid; Negrier, Philippe; Rietveld, Ivo B.; Tamarit Mur, José Luis (2018-04-04)
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      The co-crystal of C60·2CBrClH2 possesses a monoclinic (C2/m) structure at room temperature with both molecular entities, C60 and CBrClH2, orientationally ordered. At 322 K, it transforms reversibly into a hexagonal (P6/mmm) ...
    • An unexpected high-pressure stability domain for a lower density polymorph of benzophenone 

      Rietveld, Ivo B.; Barrio Casado, María del; Céolin, René; Tamarit Mur, José Luis (Springer Nature, 2023-07-24)
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      For over a century, it was thought that the crystalline polymorph II of benzophenone does not possess a stable domain in the pressure–temperature phase diagram. With a combination of new experimental results and literature ...
    • Barocaloric and magnetocaloric effects in (MnNiSi)1-x(FeCoGe)x 

      Tapas, Samanta; Lloveras Muntané, Pol Marcel; Us Saleheen, Ahmad; Lepkowski, Daniel L.; Kramer, Emily; Dubenko, Igor; Adams, Philip W.; Young, David P.; Barrio Casado, María del; Tamarit Mur, José Luis; Ali, Naushad; Stadler, Shane (2018-01-11)
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    • Barocaloric and magnetocaloric effects in Fe49Rh51 

      Stern-Taulats, E.; Planes, Antoni; Lloveras Muntané, Pol Marcel; Barrio Casado, María del; Tamarit Mur, José Luis; Pramanick, Sabyasachi; Majumdar, Subham; Frontera, Carlos; Mañosa, Lluís (2014-06-06)
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      We report on calorimetry under applied hydrostatic pressure and magnetic field at the antiferromagnetic-ferromagnetic (AFM/FM) transition of Fe49Rh51. Results demonstrate the existence of a giant barocaloric effect in this ...
    • Barocaloric response of plastic crystal 2-methyl-2-nitro-1-propanol across and far from the solid-solid phase transition 

      Salvatori, Alejandro; Barrio Casado, María del; Negrier, Philippe; Massip, Stephane; Romanini, Michela; Aznar Luque, Araceli; Lloveras Muntané, Pol Marcel; Tamarit Mur, José Luis (Institute of Physics (IOP), 2023-10-25)
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      Plastic crystals have emerged as benchmark barocaloric (BC) materials for potential solid-state cooling and heating applications due to huge isothermal entropy changes and adiabatic temperature changes driven by pressure. ...
    • Benzocaine polymorphism: Pressure-temperature phase diagram involving forms II and III 

      Gana, Inès; Barrio Casado, María del; Do, Bernard; Tamarit Mur, José Luis; Céolin, René; Rietveld, Ivo B. (2013-11-18)
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      tUnderstanding the phase behavior of an active pharmaceutical ingredient in a drug formulation isrequired to avoid the occurrence of sudden phase changes resulting in decrease of bioavailability in amarketed product. ...
    • C60 solvate with (1,1,2)-trichloroethane: dynamic statistical disorder and mixed conformation 

      Mitsari, Efstratia; Romanini, Michela; Qureshi, Navid; Tamarit Mur, José Luis; Barrio Casado, María del; Macovez, Roberto (2016-05-27)
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      We present a full characterization of the orientationally disordered cocrystal of C-60 with (1,1,2)-triChloroethane (C2H3Cl3), by means of X-ray diffraction, Raman spectroscopy, and broadband dielectric spectroscopy. Our ...
    • Colossal barocaloric effects in adamantane derivatives for thermal management 

      Salvatori, Alejandro; Negrier, Philippe; Aznar Luque, Araceli; Barrio Casado, María del; Tamarit Mur, José Luis; Lloveras Muntané, Pol Marcel (American Institute of Physics (AIP), 2022-11-16)
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      Plastic crystals are currently attracting interest because their solid-state caloric functionality could be used to tackle climate change in two critical areas: (i) more environmentally friendly cooling and heating driven ...
    • Colossal barocaloric effects near room temperature in plastic crystals of neopentylglycol 

      Lloveras Muntané, Pol Marcel; Aznar Luque, Araceli; Barrio Casado, María del; Negrier, Philippe; Popescu, C.; Planes Vila, Antoni; Mañosa Carrera, Lluis; Stern Taulats, Enric; Avramenko, Alex; Mathur, N.D.; Moya Raposo, Xavier; Tamarit Mur, José Luis (2019-04-18)
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      There is currently great interest in replacing the harmful volatile hydrofluorocarbon fluids used in refrigeration and air-conditioning with solid materials that display magnetocaloric, electrocaloric or mechanocaloric ...
    • Colossal reversible barocaloric effects in layered hybrid perovskite (C10H21NH3)2MnCl4 under low pressure near room temperature 

      Li, Junning; Barrio Casado, María del; Dunstan, David; Dixey, Richard; Lou, Xiaojie; Tamarit Mur, José Luis; Phillips, Anthony E.; Lloveras Muntané, Pol Marcel (2021-11-10)
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      Barocaloric effects in a layered hybrid organic–inorganic compound, (C10H21NH3)2MnCl4, that are reversible and colossal under pressure changes below 0.1 GPa are reported. This barocaloric performance originates in a phase ...
    • Comparative physical study of three pharmaceutically active benzodiazepine derivatives: crystalline versus amorphous state and crystallization tendency 

      Valenti, Sofia; Barrio Casado, María del; Negrier, Philippe; Romanini, Michela; Macovez, Roberto; Tamarit Mur, José Luis (American Chemical Society, 2021-01-01)
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      Chemical derivatization and amorphization are two possible strategies to improve the solubility and bioavailability of drugs, which is a key issue for the pharmaceutical industry. In this contribution, we explore whether ...
    • Conformational polymorphism: The missing phase of 1,1,2,2-tetrachloroethane (Cl2HC-CHCl2) 

      Barrio Casado, María del; Tamarit Mur, José Luis; Mondieig, Denise; Zuriaga, Jose Mariano; Perez, Silvina C.; Negrier, Philippe (2013-05)
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      Halogenoethane derivatives are known to exhibit different polymorphs involving a different translational, orientational, and conformational order. The 1,1,2,2- tetrachloroethane (Cl2HC−CHCl2) exhibits a normal pressure ...
    • Crystal structure and solid-state properties of 3,4-diaminopyridine dihydrogen phosphate and their comparison with other diaminopyridine salts 

      Mahe, N.; Nicolaï, B.; Allouchi, Hassan; Barrio Casado, María del; Do, Bernat; Céolin, René; Tamarit Mur, José Luis; Rietveld, Ivo B. (2013-02)
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      3,4-Diaminopyridine is an active pharmaceutical ingredient for the treatment of Lambert−Eaton myasthenic syndrome (LEMS). It is 3,4-diaminopyridine dihydrogen phosphate that has become the active ingredient of choice. As ...
    • Crystal structure and solid-state studies of aged samples of tienoxolol, an API designed against hypertension 

      Teulon, Jean-Marie; Mahé, Nathalie; Do, Bernard; Nicolaï, Béatrice; Rietveld, Ivo B.; Barrio Casado, María del; Tamarit Mur, José Luis; Céolin, René; Ghéchot, Christophe (2012)
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      Aging of drug molecules is generally studied following regulatory procedures, i.e. under forced conditions and for relatively limited storage time; therefore naturally aged samples are rare and provide scientific reference ...
    • Crystal structure of polymorph II and the pressure-temperature phase diagram of the dimorphic anesthetic butamben 

      Rietveld, Ivo B.; Barrio Casado, María del; Céolin, René; Tamarit Mur, José Luis (American Chemical Society, 2021-11-18)
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      The crystal structure of the low-temperature form II of butamben has been solved in a P21/c space group very similar to that of form I. Form II possesses virtually the same packing as that of the high-temperature form I, ...