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Crystals, Volume 15, Issue 2

February 2025 - 100 articles

Cover Story: This study investigates the self-assembly of KTOF4 sphere–rod amphiphilic molecules in mixed water–dioxane solvents. TEM uncovers self-assembled spherical structures of KTOF4 in dilute solutions. These spheres are filled with smectic-like layers of KTOF4 which are separated by layers of the solution. There are two types of layer packings: (i) concentric spheres and (ii) flat layers. The layered structures resemble thermotropic smectic A liquid crystals and their lyotropic analogs. The layered packings reveal edge and screw dislocations. The evaporation of the solvent produces a bulk birefringent liquid crystal phase with textures resembling that of uniaxial nematic liquid crystals. These findings demonstrate that sphere–rod molecules produce a variety of self-assembled structures that are controlled by the solvent properties. View this paper
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Articles (100)

  • Article
  • Open Access
2 Citations
838 Views
15 Pages

The Effect of Carbon on the Crystallization and Electrochemical Behavior of Portland Cement

  • Jeunghyeuon Cho,
  • Byung-Hyun Shin,
  • Miyoung You,
  • Seongjun Kim,
  • Jinyong Park,
  • Jung-Woo Ok,
  • Jonggi Hong,
  • Taekyu Lee,
  • Jong-Seong Bae and
  • Pungkeun Song
  • + 1 author

17 February 2025

Cement is one of the most widely used structural materials and serves as the primary component of concrete. Among the various types, Portland cement is the most commonly utilized due to its excellent strength and corrosion resistance. Recently, effor...

  • Article
  • Open Access
2 Citations
1,070 Views
20 Pages

16 February 2025

Crystallography, a cornerstone of materials science, provides critical insights into material structures through techniques such as X-ray diffraction (XRD). Among the metrics derived from XRD, intensity serves as a key parameter, reflecting the elect...

  • Article
  • Open Access
932 Views
17 Pages

16 February 2025

The nano-architecture of titanium oxide is a key element of a wide range of applications, mainly optical and catalytic activities. Therefore, the current study focuses on engineering and designing three interesting nanostructures of titanium oxides:...

  • Article
  • Open Access
1 Citations
890 Views
24 Pages

15 February 2025

Semiconductors characterized by ultrawide bandgaps (UWBGs), exceeding the SiC bandgap of 3.2 eV and the GaN bandgap of 3.4 eV, are currently under focus for applications in high-power and radio-frequency (RF) electronics, as well as in deep-ultraviol...

  • Article
  • Open Access
1 Citations
828 Views
15 Pages

15 February 2025

Serial crystallography (SX) enables the determination of biologically relevant structures at room temperature while minimizing radiation damage. During SX experiments, the beam center on diffraction images can shift due to X-ray beam movements or det...

  • Article
  • Open Access
2 Citations
1,018 Views
22 Pages

14 February 2025

CuMn1−xMgxO2 (x = 0–0.06) polycrystalline samples were prepared using the hydrothermal method at T = 100 °C for 24 h in Teflon-line stainless steel autoclaves. The samples were crystallized, forming crednerite structures (C2/m space g...

  • Article
  • Open Access
1 Citations
1,187 Views
20 Pages

14 February 2025

As part of crystal growth experiments on transition metal oxidotellurates using chemical vapor transport reactions or hydrothermal conditions, single crystals of NiIITeVIO4 and CuIITeIV2O5 were obtained for the first time in the form of new modificat...

  • Review
  • Open Access
3 Citations
2,627 Views
24 Pages

13 February 2025

This review summarizes the application of two-dimensional metal–organic framework (2D MOF) nanostructures and their composites in the detoxification of chemical warfare agents (CWAs). Two-dimensional MOFs, characterized by their high specific s...

  • Article
  • Open Access
1 Citations
1,152 Views
24 Pages

13 February 2025

The double-arrow hollow cylinder (DAHC) has excellent mechanical properties under axial compression loads due to its negative Poisson ratio structure. To improve finite element simulation efficiency for parameter optimization analysis, an automatic m...

  • Article
  • Open Access
2 Citations
1,028 Views
16 Pages

Low-Cost Foamed Ceramics with Enhanced Mechanical Performance and Uniform Pore Size Structure

  • Junchi Weng,
  • Xiulin Shen,
  • Yixian Yang,
  • Xuejia Zhang,
  • Mengke Fan,
  • Ge Gao,
  • Zeming Guo,
  • Zhenfei Lv and
  • Xiujuan Feng

13 February 2025

Due to the lack of effective utilization, fly ash and red mud accumulate in large quantities and cause serious harm to the environment. In this experiment, a low-cost preparation of foamed ceramics was realized by applying the foaming agent addition...

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Crystals - ISSN 2073-4352