Article
Materials Science, Multidisciplinary
A. S. Sukhanov, Y. V. Tymoshenko, A. A. Kulbakov, A. S. Cameron, V. Kocsis, H. C. Walker, A. Ivanov, J. T. Park, V. Pomjakushin, S. E. Nikitin, I. V. Morozov, I. O. Chernyavskii, S. Aswartham, A. U. B. Wolter, A. Yaresko, B. Buechner, D. S. Inosov
Summary: FeP is a special material with complex noncollinear spin order. By measuring the spin-excitation spectra, we found that the magnons in FeP have strong anisotropic dispersions. The dominant antiferromagnetic interactions between rigid ferromagnetic spin chains drive the magnetic frustration in FeP.
Article
Health Care Sciences & Services
Andrew Hui, Miltiadis Krokidis
Summary: This study evaluated the indications and outcomes of using ePTFE/FEP-covered metal stents for palliating malignant biliary obstruction. The results showed that covered stents had good effectiveness in relieving biliary obstruction, with low rates of stent dysfunction and complications.
BMJ SUPPORTIVE & PALLIATIVE CARE
(2022)
Article
Materials Science, Ceramics
Prhashanna Ammu, Mardochee Reveil, Adama Tandia
Summary: Thermal poling is a process that depletes network modifiers from the surfaces of oxide glasses. This study uses Molecular Dynamics simulation to investigate the formation of Na-depleted layers in sodium aluminosilicate glasses. The results show that the thickness of the depleted layers decreases as the ratio of A(l2)O(3) to SiO2 concentration increases, and structural analysis reveals the redistribution of aluminum coordination in the depleted layers.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2022)
Article
Materials Science, Multidisciplinary
Wenping Geng, Xiaojun Qiao, Jinlong He, Linyu Mei, Kaixi Bi, Xiangjian Wang, Xiujian Chou
Summary: This study proposes an effective method to promote the permanent formation of charged domain walls aimed with tip-induced electric fields. The results demonstrate the stable manipulation of domain reversal and charged domain walls in LiNbO3 thin films, highlighting their critical role in multiple-state logic circuits and potential ferroelectric diode applications in non-volatile memories and nanoelectronics devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Optics
Ekaterina Babich, Dmitrii Raskhodchikov, Ekaterina Lubyankina, Andrey Lipovskii
Summary: This study demonstrates a simple non-destructive technique for determining the thickness and average refractive index of a modified layer formed beneath a glass surface by thermal poling. It is based on periodic oscillations in optical transmission of poled glasses, verified by spectral ellipsometry, chemical etching, and secondary ion mass spectrometry.
Article
Biochemistry & Molecular Biology
Dorota Kowalska, Joanna Dolzonek, Krzysztof Zamojc, Sergey A. Samsonov, Martyna Maszota-Zieleniak, Joanna Makowska, Piotr Stepnowski, Anna Bialk-Bielinska, Dariusz Wyrzykowski
Summary: Human serum albumin (HSA) plays a crucial role in binding low-molecular-weight compounds and facilitating their distribution in living organisms. This study investigates the impact of counter-ions, such as [B (CN)4]- and [C(CN)3]-, on the affinity of [IM1-12]+ towards HSA. Experimental methods and computational approaches are used to analyze protein-ligand interactions and the thermal stability of resulting complexes. The findings provide valuable insights into the presence of globular proteins and ionogenic compounds in the environment and living organisms.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Multidisciplinary
Hui-Peng Lv, Yi-Rong Li, Xian-Jiang Song, Nan Zhang, Ren-Gen Xiong, Han-Yue Zhang
Summary: This study reports a supramolecular host-guest ferroelectric compound with a remarkable piezoelectric response, which does not require further poling and provides inspiration for optimizing piezoelectricity on molecular materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Moon Young Choi, Seon Ju Lee, Huiyeong Ju, Ae Ran Lim
Summary: Organic-inorganic hybrid perovskites have potential applications in fuel cells and solar cells. The physicochemical properties of an organic-inorganic [NH3(CH2)(6)NH3]CuCl4 crystal were investigated. The crystal's structure change is associated with the structural dynamics of the CuCl4 anion and the change in N-HMIDLINE HORIZONTAL ELLIPSISCl hydrogen bond.
Article
Mechanics
Yixuan Xue, Jin-Wu Jiang, Harold S. Park
Summary: Fullerene-based sandwiches with controllable physical properties offer new possibilities for advancing thermoelectricity. This study investigates the structural transformations of the sandwich structure and reveals the critical area ratios at which the fullerene pattern changes from circular to rectangular and the graphene layers become separated. These findings provide important insights into the mechanisms driving fullerene-based sandwich transformation, facilitating the design of future electronic and energy storage applications.
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
(2023)
Article
Materials Science, Ceramics
Malte Sander, Pawel Engelmann, Philipp Jacobs, Christian Roos
Summary: The effects of thermal poling and heat treatment on the structure of a lithium-zinc-alumosilicate glass-ceramic system were investigated. It was found that a lithium depletion layer formed underneath the anode-faced surface, while an accumulation of sodium was measured between the depletion layer and the bulk. The crystalline contents were higher under the cathode-faced surface compared to the untreated reference samples.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Charles T. McLaren, Craig R. Kopatz, Albert J. Fahey, Nicholas J. Smith, Himanshu Jain
Summary: Thermal poling is a method widely used for modifying glass surfaces through the application of DC voltage. The mechanism behind structural changes during poling, particularly the role of Joule heating, remains controversial. In-depth analysis revealed complex changes in structure and composition due to high electric fields across resistive depletion layers, refuting Joule heating as a significant factor.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Review
Chemistry, Physical
A. S. Abdelrazik, Mostafa A. M. Sayed, Asmaa M. A. Omar, F. M. Fatma Ayman, Abdeladim Oulguidoum, Esraa Kotob, Mohamed H. M. Helmy, H. E. Alshimaa
Summary: This study provides a comprehensive evaluation of the characteristics and stability of nanofluids using molecular dynamics (MD) simulations. The results demonstrate that the thermal conductivity, specific heat, density, and viscosity of nanofluids are influenced by various factors. These factors include the type, shape, size, concentration, and aggregation of nanoparticles, as well as the type of basefluid, nanofluid temperature, interfacial layer, and nanochannel properties.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Ceramics
A. A. Lipovskii, V. G. Melehin, A. Redkov, I. Reshetov, D. K. Tagantsev
Summary: The crystallization of potassium-titanosilicate glass under thermal poling was studied using Raman technique and X-ray diffractometry, showing the formation of anatase, a crystalline phase of titanium dioxide, in the subsurface layer under the anode. It transforms into rutile during heat treatment. The crystallization occurs at around 460 degrees C, below the glass transition temperature and below the crystallization temperature of binary glasses and films of similar composition. The mechanism of the formation of the crystalline phase is discussed in the study.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Engineering, Electrical & Electronic
Wei Long, Pinyang Fang, Feifei Guo, Aiguo He, Zengzhe Xi
Summary: The piezoelectric response of erbium-doped Pb(Mg1/3Nb2/3)O-3-xPbTiO(3) single crystals with various compositions and phases was studied using Rayleigh analysis. The results showed that the intrinsic contribution dominated the piezoelectric properties, and high-temperature poling process significantly enhanced the piezoelectric response.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Engineering, Environmental
Chang Wang, Hui Ma, Yue Tian, Anxin Jiao, Mengya Zhang, Linqi Zheng, Shuang Li, Ming Chen
Summary: Polymeric layered semiconductor-supported black nano-sandwiches, with Ag2O nano-layers covering two-dimensional graphitic carbon nitride (g-C3N4) and dense Ag nanoparticles (NPs), showed enhanced photo-triggered catalytic degradation and pronounced photo-thermal utilization, resulting in improved PTC degradation efficiency.
CHEMICAL ENGINEERING JOURNAL
(2022)