Results 31 to 40 of about 170,486 (267)

Effect of Batchelor Flow on Polymorphic Crystallization in a Rotating Disk Crystallizer

open access: yesCrystals, 2021
In this work, the influence of Batchelor flow on the polymorphic crystallization in a rotating disk (RD) crystallizer was investigated. By regulating crystallization parameters, i.e., the rotation speed, cooling rate, and ethanol fraction, we found that ...
Zun-Hua Li, Jinsoo Kim, Woo-Sik Kim
doaj   +1 more source

Noble Metal-Free TiO2-Coated Carbon Nitride Layers for Enhanced Visible Light-Driven Photocatalysis

open access: yesNanomaterials, 2020
Composites of g-C3N4/TiO2 were one-step prepared using electron impact with dielectric barrier discharge (DBD) plasma as the electron source. Due to the low operation temperature, TiO2 by the plasma method shows higher specific surface area and smaller ...
Bo Zhang, Xiangfeng Peng, Zhao Wang
doaj   +1 more source

Crystal engineering. From molecules to crystals [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 2011
How do molecules aggregate in solution, and how do these aggregates consolidate themselves in crystals? What is the relationship between the structure of a molecule and the structure of the crystal it forms? Why do some molecules adopt more than one crystal structure? Why do some crystal structures contain solvent?
openaire   +2 more sources

Theoretical Model and Experimental Investigations on Solution-Mediated Polymorphic Transformation of Theophylline: From Polymorph I to Polymorph II

open access: yesCrystals, 2019
In this work, theophylline was selected as the model compound to study and simulate the solution-mediated polymorphic transformation. The polymorph I and polymorph II of theophylline were prepared and fully characterized.
Manli Zhu   +6 more
doaj   +1 more source

Behaviors and physical mechanism of ceftezole sodium de-agglomeration driven by ultrasound

open access: yesUltrasonics Sonochemistry, 2021
Ultrasound-mediated method, which can effectively disperse agglomerates or even eliminate agglomeration, has received more and more attentions in industrial crystallization.
Xiaowei Cheng   +4 more
doaj   +1 more source

Molecular conformational evolution mechanism during nucleation of crystals in solution

open access: yesIUCrJ, 2020
Nucleation of crystals from solution is fundamental to many natural and industrial processes. In this work, the molecular mechanism of conformational polymorphism nucleation and the links between the molecular conformation in solutions and in crystals ...
Xin Li   +8 more
doaj   +1 more source

The Ladder Crystal [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2009
In this paper, we introduce a new model of the crystal $B(\Lambda _0)$ of $\widehat{\mathfrak{sl}_{\ell}}$. We briefly describe some of the properties of this crystal and compare it to the combinatorial model of Misra and Miwa. Dans cet article on propose un nouveau modèle du cristal $B(\Lambda _0)$ de \$\widehat{\mathfrak{sl}_{\ell}}$.
openaire   +6 more sources

High-Specific-Surface-Area Hollow Carbon Spheres for Efficient Chromium Ion Adsorption in Acidic Wastewater

open access: yesNanomaterials
Carbon materials are regarded as cost-effective adsorbents due to their ability to remove heavy metals and organic pollutants from contaminated water. In this study, a novel phenol–formaldehyde resin-derived carbon microsphere (HCM2.5) was designed and ...
Rui Gao   +8 more
doaj   +1 more source

Synthesis, Characterization, and Analysis of Probenecid and Pyridine Compound Salts

open access: yesCrystals
This study aimed to address the issue of the low solubility in the model drug probenecid (PRO) and its impact on bioavailability. Two salts of probenecid (PRO), 4-aminopyridine (4AMP), and 4-dimethylaminopyridine (4DAP) were synthesized and characterized
Menglong Zhang   +8 more
doaj   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

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