Article
Biochemistry & Molecular Biology
Gregory Effantin, Akiko Fujiwara, Takeru Kawasaki, Takashi Yamada, Guy Schoehn
Summary: The phi RSA1 bacteriophage isolated from Ralstonia solanacearum exhibits unique structural characteristics, predominantly composed of a polymer of the gp8 protein, unlike other bacteriophages in terms of stabilization.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Review
Materials Science, Multidisciplinary
Xi Jiang, Nitash P. Balsara
Summary: Electron microscopy has been essential in characterizing polymers, with recent developments allowing for atomic resolution imaging of polymer crystals and providing a comprehensive understanding of strategies towards high-resolution imaging of radiation-sensitive polymer materials at different length scales.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Ivan S. Pavlov, Anna G. Ivanova, Vladimir P. Filonenko, Igor P. Zibrov, Alexei E. Voloshin, Pavel V. Zinin, Alexander L. Vasiliev
Summary: This study investigates the formation of boron carbide superhard particles through a liquid-phase reaction at high pressure and high temperature. The synthesized particles exhibit a rhombic hexecontahedron morphology with twelve five-vertex stars. Electron microscopy and X-ray diffraction were used to analyze the crystal structure of these particles, revealing multiple cycling twinning rather than quasi-crystalline symptoms. The specific shape of the particles is explained by the decrease of surface energy during formation at high pressure and high temperature.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Multidisciplinary
Kunmo Koo, Jungjae Park, Sanghyeon Ji, Saltanat Toleukhanova, Jong Min Yuk
Summary: The recent development of liquid-phase transmission electron microscopy, especially the novel liquid-flowing graphene chip TEM (LFGC-TEM), shows great potential in providing atomic resolution imaging for colloidal nanoparticles and molecular-level information for unstained wet biomolecules and cells. The robustness and capability of LFGC-TEM could lead to breakthroughs in live imaging of biological phenomena that are not currently achievable with existing methods.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Sergi Plana-Ruiz, Alejandro Gomez-Perez, Monika Budayova-Spano, Daniel L. Foley, Joaquim Portillo-Serra, Edgar Rauch, Evangelos Grivas, Dominique Housset, Partha Pratim Das, Mitra L. Taheri, Stavros Nicolopoulos, Wai Li Ling
Summary: Structural characterization is crucial for understanding protein function. Though electron crystallography can be performed on nanometer-sized crystals and provide additional information, its widespread use has been limited due to the fragility of such crystals. This work demonstrates a methodology to preserve these nanocrystals in their natural environment at room temperature for electron diffraction experiments.
Article
Materials Science, Multidisciplinary
N. S. Larionova, R. M. Nikonova, V. I. Ladyanov
Summary: Alumothermic self-propagating high-temperature synthesis was used to obtain a 2Nb-1Si-1C composite material. The morphology, structure, and phase composition of the composite were studied using X-ray diffraction and scanning electron microscopy. It was found that γ-Nb5Si3, NbC, and NbSi2 phases were formed in the sample.
Article
Chemistry, Analytical
Olivier De Castro, Jean-Nicolas Audinot, Hung Quang Hoang, Cherif Coulbary, Olivier Bouton, Rachid Barrahma, Alexander Ost, Charlotte Stoffels, Chengge Jiao, Mikhail Dutka, Michal Geryk, Tom Wirtz
Summary: The article introduces the use of magnetic sector secondary ion mass spectrometry (SIMS) on a widely used instrument, focused ion beam (FIB)-scanning electron microscopy (SEM), for nanoscale investigations. It provides a detailed description of the instrument's layout and performance, as well as the research results obtained in various fields. The system demonstrates versatile capability for high-performance correlative studies in materials science and life sciences.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
R. Podor, V Trillaud, G. I. Nkou Bouala, N. Dacheux, C. Ricolleau, N. Clavier
Summary: This study utilized two-grain model systems formed by ThO2 nanospheres to experimentally investigate the initial stage of sintering from room temperature to 1050 degrees C. The research revealed that at high temperatures, crystallites underwent reorganization and growth through oriented attachment, leading to the formation of a single crystal. The formation of the neck during sintering was predominantly driven by volume diffusion.
Article
Chemistry, Physical
Hsin-Li Liang, Che-Wei Tsai, Sheng Guo
Summary: This study successfully designed corrosion-resistant CoCrFeMoNi HEAs with single-phase structure using two strategies, and validated the effectiveness of these methods through thermal stability. The corrosion resistance of these HEAs was found to be competitive compared to Hastelloy C276.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Y. Chen, M. Klinger, J. Duchon, P. Sittner
Summary: The study investigates the stress deformation and high temperature heating process of NiTi shape memory wire through martensitic transformation at low temperature. It is found that plastic deformation involving dislocation slip and twinning triggers the metal structure transformation in martensite, and the impact on functionality in engineering applications is discussed.
Article
Chemistry, Multidisciplinary
G. M. Jonaid, William J. Dearnaley, Michael A. Casasanta, Liam Kaylor, Samantha Berry, Madeline J. Dukes, Michael S. Spilman, Jennifer L. Gray, Deborah F. Kelly
Summary: Liquid-phase electron microscopy (LP-EM) is a new exciting field in materials imaging, offering unprecedented views of molecular processes. Insights from LP-EM studies complement other high-resolution techniques, and expanding this technology into 3D realm presents future opportunities.
ADVANCED MATERIALS
(2021)
Article
Multidisciplinary Sciences
Ruoqian Lin, Rui Zhang, Chunyang Wang, Xiao-Qing Yang, Huolin L. Xin
Summary: A training library and deep learning method have been developed for precise atom segmentation, localization, denoising, and super-resolution processing in atomic-resolution STEM images. Despite being trained on simulated images, the deep-learning model can adapt to experimental STEM images and shows outstanding performance in challenging contrast conditions.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Masaki Tahara, Kazuya Hasunuma, Hideki Hosoda
Summary: This study investigated the decomposition process of the isothermal alpha '' phase in beta-Ti alloys, and found that the resulting alpha + beta dual phase inherited the microstructural characteristics of the alpha ''(iso) phase. The research results indicate the existence of a strict variant selection rule between the decomposed alpha and beta phases, with a specific variant combination observed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Jelena Lovric, Neda Najafinobar, Michael E. Kurczy, Olivier De Castro, Antje Biesemeier, Lena von Sydow, Magnus Klarqvist, Tom Wirtz, Per Malmberg
Summary: This study developed correlative methodologies to investigate iron accumulation and subcellular localization in alveolar macrophages. By using nanoscale magnetic sector secondary ion mass spectrometry (SIMS) and various high-resolution imaging technologies, they found that iron accumulates in mitochondria and electrolucent compartments such as vacuoles, lysosomes, and lipid droplets.
ANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Xiaogang Wang, Lin Gao, Xuelin Yang
Summary: A single crystalline Na2/3Ni1/3Mn2/3O2 microrods cathode is elaborately designed and synthesized in this work for aqueous zinc-ion batteries (ZIBs), which exhibits a reversible capacity of 130 mAh g(-1) at 5 A g(-1) after 2500 cycles. The excellent performance suggests that Ni doping modified Mn-based cathode material is a reasonable method to design high-performance ZIBs cathodes.
Article
Mineralogy
Taiga Okumura, Hye-Jin Kim, Jin-Wook Kim, Toshihiro Kogure
EUROPEAN JOURNAL OF MINERALOGY
(2018)
Article
Chemistry, Physical
K. Yamashita, T. Itoi, M. Yamasaki, Y. Kawamura, E. Abe
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Materials Science, Multidisciplinary
D. Egusa, K. Kawaguchi, E. Abe
FRONTIERS IN MATERIALS
(2019)
Article
Materials Science, Multidisciplinary
M. Egami, I. Ohnuma, M. Enoki, H. Ohtani, E. Abe
MATERIALS & DESIGN
(2020)
Article
Materials Science, Multidisciplinary
M. Egami, I. Ohnuma, M. Enoki, H. Ohtani, E. Abe
MATERIALS TRANSACTIONS
(2020)
Article
Materials Science, Multidisciplinary
Daisuke Egusa, Hidetoshi Somekawa, Eiji Abe
MATERIALS TRANSACTIONS
(2020)
Article
Nanoscience & Nanotechnology
Hidetoshi Somekawa, Daisuke Egusa, Eiji Abe
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2020)
Article
Multidisciplinary Sciences
Motoki Yako, Yasuhiko Ishikawa, Eiji Abe, Kazumi Wada
JOVE-JOURNAL OF VISUALIZED EXPERIMENTS
(2020)
Article
Materials Science, Multidisciplinary
Mitsuhiro Itakura, Masatake Yamaguchi, Daisuke Egusa, Eiji Abe
Summary: Solute clusters in long period stacking order (LPSO) alloys play a crucial role in their unique plastic behavior, but there is uncertainty regarding the presence of interstitial atoms in these clusters. Using density functional theory calculations, it was found that solute clusters in Mg-Y-Zn LPSO alloy should include interstitial atoms, primarily Mg. This finding simplifies the atomistic modeling of solute clusters in these alloys and suggests that increased vacancy density accelerates cluster growth through the emission of vacancies from the cluster.
Article
Materials Science, Multidisciplinary
Toshihiro Hara, Daisuke Egusa, Mami Mihara, Hiroki Tanaka, Ikuo Ohnuma, Eiji Abe
Summary: The study found that the softening phenomenon in the Al-Fe alloy is attributed to the highly purified aluminum matrix, leading to the occurrence of dynamic recovery and/or recrystallization in deformation ranges.
MATERIALS TRANSACTIONS
(2021)
Article
Materials Science, Multidisciplinary
Daisuke Egusa, Koji Inoue, Yasuyoshi Nagai, Eiji Abe
Summary: The study found that kink boundaries (KBs) undergo reconstruction during post-annealing, forming local hexagonal close-packed Mg regions and enhancing thermal stability. The reconstruction of dislocation structures plays an important role in solute-enriched face-centered cubic layers within LPSO structures.
MATERIALS CHARACTERIZATION
(2021)
Article
Polymer Science
Tatsuhiko Murayama, Eiji Abe, Hiromu Saito
Summary: Through heat elongation treatment, the mechanical properties of extruded high-density polyethylene film were improved, including increased tensile strength and disappearance of the yield point. Experimental results showed that elongation led to a more regular lamellar structure, increased chain orientation, and suppression of lamellar fracture and void formation.
Article
Nanoscience & Nanotechnology
Kai Guan, Mariko Egami, Daisuke Egusa, Hajime Kimizuka, Michiaki Yamasaki, Yoshihito Kawamura, Eiji Abe
Summary: In this study, SRO solute clusters in the I-1 type LPSO phases in Mg-CoY alloys have been investigated using atomic-resolution STEM and first-principles calculations. The Co3Y5 SRO cluster model embedded across the I-1-type SFs has been successfully constructed to enhance the energetic stability of the LPSO phases. The findings reveal the crucial role of solute SRO clusters in the formation and stability of LPSO phases in ternary Mg alloys.
SCRIPTA MATERIALIA
(2022)
Article
Metallurgy & Metallurgical Engineering
Kai Guan, Daisuke Egusa, Eiji Abe, Jinghuai Zhang, Xin Qiu, Qiang Yang, Jian Meng
Summary: The effect of Gd content on the microstructure and tensile properties of as-cast Mg-Sm-Zn-Zr alloy was investigated. The addition of Gd inhibited the segregation behavior of Zn in the Mg3Sm phase and improved the tensile yield stress of the alloy. Gd-modified alloys exhibited significant age-hardening effect, attributed to the high-volume fraction and high density nano-scale precipitates.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Materials Science, Multidisciplinary
T. Nishioka, Y. Yamamoto, K. Kimura, K. Hagihara, H. Izuno, N. Happo, S. Hosokawa, E. Abe, M. Suzuki, T. Matsushita, K. Hayashi