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89,987 results
  • Adsorption of a Poorly Water-Soluble Drug onto Porous Calcium Silicate by the Sealed Heating Method. [Journal Article]
    Int J Pharm. 2020 Jul 11 [Online ahead of print]Kawano Y, Chen S, Hanawa T
  • To improve the bioavailability of orally-administered drug, solubilization of poorly water-soluble drug is important. The solubility of a drug in its amorphous form is known to be higher than in its crystalline form. In this study, we attempted to adsorb a sublimable drug onto porous calcium silicate (Florite®, FLR) or non-porous calcium silicate (NPCS) by the sealed heating (SH) method and evapo…
  • A study on polymorphic forms of rifampicin for inhaled high dose delivery in tuberculosis treatment. [Journal Article]
    Int J Pharm. 2020 Jul 11 [Online ahead of print]Khadka P, Hill PC, … Das SC
  • Rifampicin is a first-line, highly effective drug currently used orally as a part of a lengthy multi-drug regimen against tuberculosis (TB). Despite the potential of inhaled therapy as an effective approach for TB treatment, an inhalable formulation of rifampicin has not yet been developed for clinical use. In order to do so, it is necessary to evaluate its solid-state properties, which regulate …
  • Physicochemical and structural properties of low-amylose Chinese yam (Dioscorea opposita Thunb.) starches. [Journal Article]
    Int J Biol Macromol. 2020 Jul 11 [Online ahead of print]Shao Y, Mao L, … Jiang Q
  • Nuoshanyao (NSY), Tiegunshanyao (TSY) and Huaishanyao (HSY) are the main cultivars of Chinese yam (Dioscorea opposita Thunb.) widely grown in China. The composition, physicochemical properties, morphology, and thermal properties of the starches from these cultivars were investigated in this study. NSY starch (17.0%) was much lower in amylose content than other cultivars (33.4-34.5%). The average …
  • Imaging strain-localized excitons in nanoscale bubbles of monolayer WSe2 at room temperature. [Journal Article]
    Nat Nanotechnol. 2020 Jul 13 [Online ahead of print]Darlington TP, Carmesin C, … Schuck PJ
  • In monolayer transition-metal dichalcogenides, localized strain can be used to design nanoarrays of single photon sources. Despite strong empirical correlation, the nanoscale interplay between excitons and local crystalline structure that gives rise to these quantum emitters is poorly understood. Here, we combine room-temperature nano-optical imaging and spectroscopic analysis of excitons in nano…
  • Lanthanides Regulated Amorphization-Crystallization of IrO2 for Outstanding OER Performance. [Journal Article]
    ACS Appl Mater Interfaces. 2020 Jul 13 [Online ahead of print]Ma C, Sun W, … Yang J
  • Research has been focused on regulating the amorphous surface of Ir-based materials to achieve higher Oxygen Evolution Reaction (OER) activity. It is believed that the IrOx amorphous layer is generally considered substantial to break the limitation created by the conventional adsorbate evolution mechanism (AEM) in acidic media. In this work, we used lanthanides to regulate IrOx amorphization-crys…
  • Single-Atom Catalysts Supported by Crystalline Porous Materials: Views from the Inside. [Review]
    Adv Mater. 2020 Jul 12 [Online ahead of print]Zhang T, Chen Z, … Zhang P
  • Single-atom catalysts (SACs) have recently emerged as an exciting system in heterogeneous catalysis showing outstanding performance in many catalytic reactions. Single-atom catalytic sites alone are not stable and thus require stabilization from substrates. Crystalline porous materials such as zeolites and metal-organic frameworks (MOFs) are excellent substrates for SACs, offering high stability …
  • Continuous electrocoagulation degradation of oily wastewater with Fe78Si9B13 amorphous ribbons. [Journal Article]
    Environ Sci Pollut Res Int. 2020 Jul 12 [Online ahead of print]Zhu S, Xiang Q, … Qiu K
  • The oily wastewater was treated by electrocoagulation with Fe78Si9B13 amorphous ribbons as anode and graphite plates as cathode under such processing parameters as different pH values and current density, respectively. The degradation effect on the oily wastewater was characterized by chemical demand oxygen (COD), while the ribbons before and after using were analyzed by X-ray diffraction (XRD) a…
  • Revealing roles of competing local structural orderings in crystallization of polymorphic systems. [Journal Article]
    Sci Adv. 2020 Jul; 6(27):eaaw8938.Li M, Chen Y, … Tan P
  • Most systems have more than two stable crystalline states in the phase diagram, which is known as polymorphism. Crystallization in such a system is often under strong influence of competing orderings linked to those crystals. However, how such competition affects crystal nucleation and ordering toward the final crystalline state is largely unknown. This is primarily because the competition takes …
  • Stereochemical purity can induce new crystalline mesophase in phytantriol lipids. [Journal Article]
    Langmuir. 2020 Jul 11 [Online ahead of print]Vallooran J, Duss M, … Landau EM
  • The impact of stereochemical purity of lipids on their self-assembly behavior is critical for establishing its true phase behavior from its commercial counterparts which often contains stereoisomeric mixtures and other impurities. Here, stereochemically-pure phytantriol (3,7,11,15-tetramethylhexadecane-1,2,3-triol) was synthesized from the natural trans-phytol and its thermotropic and lyotropic p…
  • Changes in ocular biometry during short-term accommodation in children. [Journal Article]
    Ophthalmic Physiol Opt. 2020 Jul 12 [Online ahead of print]Hughes RPJ, Read SA, … Vincent SJ
  • CONCLUSIONS: AL increased significantly during accommodation in children, consistent with previous findings in adults up to a 6 D demand. AL continued to increase for higher levels of accommodation (9 D demand), which children may experience during near tasks. These findings provide further insights into potential mechanisms linking near work, axial elongation, and myopia development. However, no myopic children participated in this experiment; therefore, further research is required.
  • Effect of the ratio between fatty alcohol and fatty acid on foaming properties of whipped oleogels. [Journal Article]
    Food Chem. 2020 Jul 02; 333:127403.Callau M, Sow-Kébé K, … Fameau AL
  • Oil foams that are based on oleogels are stabilized by the presence of crystalline particles at the air bubble surface and in bulk. The size of crystalline particles is an important parameter in oil foam stabilization. The creation process (cooling and shear rate) can tune its properties. The aim of this study was to determine the effect of altering the weight ratio (R) between long chain fatty a…
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