Article
Chemistry, Inorganic & Nuclear
B. Dulani Dhanapala, Hashini N. Munasinghe, K. Tauni Dissanayake, Leopoldo Suescun, Federico A. Rabuffetti
Summary: A new synthetic route has been developed to access BaFBr nanocrystals and doped samples, displaying NIR-to-visible photon upconversion under 980 nm excitation. The temperature-sensitive green emission from Er3+ can be utilized for optical temperature sensing, indicating potential for the development of optical materials.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Jiaxin Gong, Jiheng Li, Xiaoqian Bao, Ruifen Hou, Xuexu Gao
Summary: The crystal structure and magnetic structure of Tb-Dy-Fe compounds were studied before and after annealing heat treatment, revealing the existence of tetragonal and rhombohedral phases at room temperature. The volume proportion of the hexagonal phase increased after heat treatment, and the effect of structural distortion on the magnetostriction of Tb-Dy-Fe was discussed based on analytical results.
Article
Materials Science, Multidisciplinary
Md Shafiqul Islam, Daisuke Morikawa, Shigeki Yamada, Bikas Aryal, Kenji Tsuda, Masami Terauchi
Summary: The space groups and crystal structures of A-site ordered NdBaMn2O6 perovskite were investigated at different temperatures, revealing different space groups and crystal structures. The low-temperature phase exhibited a fourfold periodicity.
Article
Chemistry, Physical
Kenji Iwase, Shuhei Ishida, Takashi Ueno, Kazuhiro Mori
Summary: This study investigated the residual hydrogen occupation mechanisms in MgZn2-type and CaCu5-type cells during the hydrogen absorption-desorption process. The results revealed the structural changes and deuterium occupation in NdNi3Dx and provided insights into the preferred deuterium sites in different cell types.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Manufacturing
Zijun Wang, Nicholas Boechler, Shengqiang Cai
Summary: In this study, the additive manufacturing of liquid crystal elastomer (LCE) sheets using direct ink writing (DIW) was investigated. By tailoring the liquid crystal orientation patterns, the stress-strain relationship and strain distribution in the printed sheets could be programmed. These findings provide foundational material property and processing data for the design of additively manufactured LCE-based devices.
ADDITIVE MANUFACTURING
(2022)
Article
Chemistry, Physical
Ryan A. Klein, Rafael Balderas-Xicohtencatl, Jan Petter Maehlen, Terrence J. Udovic, Craig M. Brown, Robert Delaplane, Yongqiang Cheng, Roman Denys, Anibal J. Ramirez-Cuesta, Volodymyr A. Yartys
Summary: Intermetallic metal hydrides are essential for hydrogen storage, but those with higher storage capacities are still needed. Neutron vibrational spectroscopy (NVS) was used to study LaNiInHx and CeNiInH1.4, revealing close vibrational features between paired H atoms when x > 0.67. In contrast, no close H contacts were found in CeNiSnH, CeNiSnH2, and CeNiSnD2, demonstrating differences in hydrogen dynamics between the compounds.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Multidisciplinary Sciences
Shunsuke Sasaki, Maria Teresa Caldes, Catherine Guillot-Deudon, Isabelle Braems, Gwladys Steciuk, Lukas Palatinus, Eric Gautron, Gilles Frapper, Etienne Janod, Benoit Corraze, Stephane Jobic, Laurent Cario
Summary: Researchers have successfully demonstrated the topochemical deintercalation/reintercalation of sulfur in a layered oxychalcogenide, leading to the design of novel metastable phases. By reacting La2O2S2 with monovalent metals, they produced sulfur-deintercalated metastable phases La2O2S1.5 and oA-La2O2S, with lamellar structures predicted through an evolutionary structure-prediction algorithm. This study opens up new possibilities for the unexplored topochemistry of mobile chalcogen anions.
NATURE COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Achim M. Schaller, Maxim Bykov, Elena Bykova, Konstantin Glazyrin, Sander van Smaalen
Summary: This study investigates the magnetic order and structural modulation in van der Waals layered FeOCl under different pressures. It reveals the relationship between the optimization of chlorine atom packing and the modulation of the orthorhombic symmetry. The research also highlights the importance of strong lattice distortion in understanding the properties of single-layer FeOCl materials.
Article
Materials Science, Multidisciplinary
Bjoern Schwarz, Julian Hansen, Anna-Lena Hansen, Eugen Zemlyanushin, Helmut Ehrenberg
Summary: The magnetic properties of tetragonal α-Mn3O4 spinel, its metastable high-pressure modification γ-Mn3O4, and a defect-rich α-Mn3O4 modification were investigated. The unintentional formation of defect-rich α-Mn3O4 phase instead of desired γ-Mn3O4 occurred after high-pressure treatment. The results provide clarification for contradictory reports on the magnetic properties of γ-Mn3O4 in the literature. In addition, in situ low-temperature X-ray diffraction and X-ray absorption spectroscopy experiments did not observe any structural transition coupled with the magnetic transition at 210 K, contradicting previous conclusions based on powder neutron diffraction.
Article
Chemistry, Physical
Nevill Gonzalez Szwacki, Piotr Fabrykiewicz, Izabela Sosnowska, Francois Fauth, Emmanuelle Suard, Radoslaw Przenioslo
Summary: The study demonstrates that the rutile phase of TiO2 has an orthorhombic symmetry instead of the commonly believed tetragonal symmetry. Through experimental and numerical methods, precise structural properties of rutile TiO2 are determined using a revised density functional method. The decrease in symmetry has a small but significant impact on the elastic, vibrational, and optical properties of rutile TiO2.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Multidisciplinary
Christopher J. H. Smalley, Harriet E. Hoskyns, Colan E. Hughes, Duncan N. Johnstone, Tom Willhammar, Mark T. Young, Christopher J. Pickard, Andrew J. Logsdail, Paul A. Midgley, Kenneth D. M. Harris
Summary: In this study, the crystal structure of a new polymorph of l-tyrosine (denoted the beta polymorph) prepared by vacuum sublimation was reported. The combined analysis of 3D electron diffraction data and powder X-ray diffraction data was used for structure determination and refinement. DFT-D calculations and crystal structure prediction calculations were performed to validate the results and explore other possible crystalline polymorphs.
Article
Chemistry, Multidisciplinary
Jonathan B. Lefton, Wenhao Liu, Claire McGuire, Bing Lv, Craig M. Brown, Ryan A. Klein, Tomce Runcevski
Summary: Layered hybrid organic-inorganic compounds of transition metal hydroxides, with interlayer organic ligands, have shown new or enhanced properties. In this study, the effects of dimensionality, Co coordination, and interlayer spacing on the magnetic ground state of brucite-like beta-Co(OH) layered complexes were investigated. A new crystalline material, Co(OH)(sorb), with inorganic layers separated by monotopic, doubly unsaturated sorbate ligands, was synthesized and characterized. The material exhibited canted antiferromagnetic ordering with a Curie temperature of 41.7 K. This study contributes to the understanding of magnetism tuning in layered complexes and the design of new 2D layered hybrid compounds.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Materials Science, Multidisciplinary
Masayuki Ochi, Kazuhiko Kuroki
Summary: We theoretically investigate defect formation energies in LaOXS2 (X = Sb, Bi) using first-principles calculation. Oxygen vacancy is found to be relatively stable, with higher formation energy in X = Sb than in X = Bi. An interesting feature of X = Sb is the increased stability of in-plane sulfur atom vacancy compared to X = Bi, due to the formation of an Sb2 dimer and electron occupation of impurity energy levels. Cation defects and anion-cation antisite defects have positive formation energies under the chemical equilibrium condition. Fluorine likely replaces oxygen, with negative defect formation energy for both X = Sb and Bi, but significantly higher for X = Sb. Our study clarifies the stability of several point defects and suggests enhanced in-plane structural instability in X = Sb, possibly causing structural changes due to in-plane point defects.
Article
Construction & Building Technology
Tommaso Battiston, Davide Comboni, Giancarlo Verri, Michael Hanfland, G. Diego Gatta
Summary: The crystal structure of the F5-phase, the main component of Sorel cement, was investigated using synchrotron powder X-ray diffraction data. An in-situ compressional experiment was conducted to study its high-pressure behavior. The F5-phase exhibited significant anisotropic compression, with two different regimes at different pressure ranges. The atomic-scale factors responsible for the compressional anisotropy of the F5-phase were discussed.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Gustavo Henrique M. Gomes, Nelcy D. S. Mohallem
Summary: This study presents insights into the crystal structure of the TT-phase of Nb2O5, revealing a pseudohexagonal unit cell and a tunnel-like structure of 4 angstrom along the b-axis.
Article
Virology
Myra Hosmillo, Trevor R. Sweeney, Yasmin Chaudhry, Eoin Leen, Stephen Curry, Ian Goodfellow, Kyoung-Oh Cho
JOURNAL OF VIROLOGY
(2016)
Letter
Multidisciplinary Sciences
Stephen Curry, Jenny Rohn, Andrew Steele
Article
Microbiology
Eoin N. Leen, Frederic Sorgeloos, Samantha Correia, Yasmin Chaudhry, Fabien Cannac, Chiara Pastore, Yingqi Xu, Stephen C. Graham, Stephen J. Matthews, Ian G. Goodfellow, Stephen Curry
Article
Multidisciplinary Sciences
Jingjie Yang, Eoin N. Leen, Francois F. Maree, Stephen Curry
Article
Cell Biology
Gabriele Buchel, Anne Carstensen, Ka-Yan Mak, Isabelle Roeschert, Eoin Leen, Olga Sumara, Julia Hofstetter, Steffi Herold, Jacqueline Kalb, Apoorva Baluapuri, Evon Poon, Colin Kwok, Louis Chesler, Hans Michael Maric, David S. Rickman, Elmar Wolf, Richard Bayliss, Susanne Walz, Martin Eilers
Article
Multidisciplinary Sciences
Humberto Fernandes, Honorata Czapinska, Katarzyna Grudziaz, Janusz M. Bujnicki, Martyna Nowacka
Article
Multidisciplinary Sciences
Martyna Nowacka, Humberto Fernandes, Agnieszka Kiliszek, Agata Bernat, Grzegorz Lach, Janusz M. Bujnicki
Article
Biology
Anna Hatch, Stephen Curry
Review
Biochemistry & Molecular Biology
Matthiasd Bochtler, Humberto Fernandes
Summary: 6-methyladenine (6mA) levels vary in different organisms, being associated with transcription activity and organellar DNA, regulated by nucleotide salvage and METTL4 activity.
Article
Biology
Ruth Schmidt, Stephen Curry, Anna Hatch
Summary: The paragraph discusses the challenges universities and research institutions face when assessing research and researchers, as well as introduces a new tool called SPACE to help implement reforms that focus on important factors such as academic rigor, data sharing, and mentoring.
Review
Biochemistry & Molecular Biology
Vineeta Kaushik, Luca Gessa, Nelam Kumar, Humberto Fernandes
Summary: Diabetic retinopathy is a severe disease that burdens society and finances due to its increasing prevalence. Early detection and control of the disease are crucial in preventing or slowing its progression. This review focuses on the molecular changes that occur before the clinical manifestation of the disease, and suggests retinol binding protein 3 (RBP3) as a potential biomarker for non-invasive, early-stage detection. The article also introduces a new diagnostic tool that utilizes eye imaging and two-photon technology to quantify RBP3 in the retina rapidly and effectively.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Biochemistry & Molecular Biology
Richard Bayliss, Selena G. Burgess, Eoin Leen, Mark W. Richards
BIOCHEMICAL SOCIETY TRANSACTIONS
(2017)
Editorial Material
Chemistry, Multidisciplinary
Stephen Curry
Article
Chemistry, Multidisciplinary
Stephen Curry
CHEMICAL & ENGINEERING NEWS
(2016)