Exploració per tema "Crystal structure"
Ara es mostren els items 1-14 de 14
-
Comparative physical study of three pharmaceutically active benzodiazepine derivatives: crystalline versus amorphous state and crystallization tendency
(American Chemical Society, 2021-01-01)
Article
Accés obertChemical 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 ... -
Crystal polymorphism of polylactides and poly(Pro-alt-CO): The metastable beta and gamma phases. Formation of homochiral PLLA phases in the PLLA/PDLA blends
(Elsevier, 2017-04-21)
Article
Accés restringit per política de l'editorialAmong the various crystalline phases of polylactides, an elusive orthorhombic gamma phase (¿PLLA) had been obtained so far only by epitaxial crystallization on hexamethylbenzene. A recent work by J. Shao et al. (Macromolecules, ... -
Crystalline tetrazepam as a case study on the volume change on melting of molecular organic compounds
(2021-01-25)
Article
Accés obertThe volume change on melting is a rarely studied quantity and it is not well understood even if it must reflect the changes in interaction between the solid and the liquid state. It is part of the solid-state information ... -
Description of a Non-Canonical Mn(II)-Oxidation Site in Peroxidases
(American Chemical Society, 2018-07-31)
Article
Accés obertA dye-decolorizing peroxidase (DyP) from Pleurotus ostreatus (PosDyP4) catalyzes the oxidation of Mn2+ to Mn3+, in the presence of H2O2, with an efficiency similar to the well-known manganese peroxidases and versatile ... -
Liquid-liquid miscibility gaps in drug-water binary systems: crystal Structure and thermodynamic properties of prilocaine and the temperature-composition phase diagram of the prilocaine-water system
(2013-04)
Article
Accés restringit per política de l'editorialEMLA cream, a “eutectic mixture of local anesthetics”, was developed in the early 1980s by Astra Pharmaceutical Production. The mixture of anesthetics containing lidocaine, prilocaine, and water is liquid at room ... -
On the m23 c6-carbide in 2205 duplex stainless steel: An unexpected (m23 c6 /austenite)—eutectoid in the d-ferritic matrix
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-09-01)
Article
Accés obertThis study is focused on isothermal and anisothermal precipitation of M23C6 carbides from the fully ferritic structure of the (¿ + d) austenitic-ferritic duplex stainless steel X2CrNiMo2253, (2205). During isothermal heat ... -
Solid state physicochemical properties and applications of organic and metallo-organic fullerene derivatives
(2016)
Article
Accés obertWe review the fundamental properties and main applications of organic derivatives and complexes of fullerenes in the solid-state form. We address in particular the structural properties, in terms of crystal structure, ... -
Structural elucidation and engineering of a bacterial carbohydrate oxidase
(American Chemical Society, 2022-07)
Article
Accés obertFlavin-dependent carbohydrate oxidases are valuable tools in biotechnological applications due to their high selectivity in the oxidation of carbohydrates. In this study, we report the biochemical and structural characterization ... -
Structural polymorphism in poly(3-ethyl-3-phenyl-2-azetidinone)
(Elsevier, 2016-08-31)
Article
Accés restringit per política de l'editorialThe structural characterization of chiral nylon-3 derivative, poly (3-ethyl-3-phenyl-2- azetidinone) (PEPA) has been carried out using FTIR, thermal analysis, X-ray diffraction and electron microscopy. X-ray diffraction ... -
Structure and dynamics of water plastic crystals from computer simulations
(2021-03-14)
Article
Accés obertWater has a rich phase diagram with several crystals, as confirmed by experiments. High-pressure and high-temperature water is of interest for Earth’s mantle and exoplanetary investigations. It is in this region of the ... -
The phase diagram of the API benzocaine and its highly persistent, metastable crystalline polymorphs
(Multidisciplinary Digital Publishing Institute (MDPI), 2023-05-20)
Article
Accés obertThe availability of sufficient amounts of form I of benzocaine has led to the investigation of its phase relationships with the other two existing forms, II and III, using adiabatic calorimetry, powder X-ray diffraction, ... -
The solid state of anti-inflammatory morniflumate diniflumate: A cocrystalline salt
(2021-12-15)
Article
Accés obertMorniflumate diniflumate, a molecular compound involving niflumic acid and its ß-morpholino ethyl ester (morniflumate) in the mole ratio 2:1, is found to crystallize in a triclinic P - 1 space group with a unit-cell volume ... -
Tuning the high-temperature properties of Pr2NiO4+δ by simultaneous Pr- and Ni-cation replacement
(2016)
Article
Accés obertNovel Pr2-xSrxNi1-xCoxO4±δ (x = 0.25; 0.5; 0.75) oxides with the tetragonal K2NiF4-type structure have been prepared. Room-temperature neutron powder diffraction (NPD) study of x = 0.25 and 0.75 phases together with ... -
Unexpected dielectric response in lead zirconate titanate ceramics: The role of ferroelectric domain wall pinning effects
(2007-07)
Article
Accés obertTemperature dependent dielectric response has been measured in Pb(Zr1-xTix)O-3 ceramics. Samples of different compositions (x=0.40, 0.47, and 0.60), pure and doped with Nb-or Fe, were studied at temperatures between 15 and ...