Article
Chemistry, Multidisciplinary
Vincent De Andrade, Viktor Nikitin, Michael Wojcik, Alex Deriy, Sunil Bean, Deming Shu, Tim Mooney, Kevin Peterson, Prabhat Kc, Kenan Li, Sajid Ali, Kamel Fezzaa, Doga Gursoy, Cassandra Arico, Saliha Ouendi, David Troadec, Patrice Simon, Francesco De Carlo, Christophe Lethien
Summary: In recent years, transmission X-ray microscopes have become excellent tools for non-invasive characterization of nanoscale materials, but their spatial resolution has lagged behind modern nanostructures. Recent optomechanical breakthroughs have enabled fast 3D tomographic acquisitions with sub-10 nm resolution, narrowing the gap between X-ray and electron microscopy.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Characterization & Testing
Herminso Villarraga-Gomez, Dana L. Begun, Pradeep Bhattad, Kai Mo, Mansoureh Norouzi Rad, Robin T. White, Stephen T. Kelly
Summary: This paper introduces a workflow that combines computed tomography and 3D X-ray microscopy to generate a detailed three-dimensional visualization of the internal structure of battery cells. This imaging technique provides valuable insights at multiple length scales and can speed up development time, increase cost efficiency, and simplify failure analysis and quality inspection.
NONDESTRUCTIVE TESTING AND EVALUATION
(2022)
Article
Chemistry, Multidisciplinary
Sebastian Weber, Darren Batey, Silvia Cipiccia, Matthias Stehle, Ken L. Abel, Roger Glaeser, Thomas L. Sheppard
Summary: This study utilized PXCT to investigate catalyst deactivation by coking in Ni/Al2O3 catalysts for CO2 methanation and CH4 dry reforming, revealing that coke formation primarily occurs in nanoporous solids and is not detectable in resolved macropores. PXCT is highlighted as a novel characterization tool for high-resolution quantitative 3D study of deactivation phenomena within entire catalyst particles.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Manufacturing
S. Gaudez, M. Ben Haj Slama, E. Heripre, L. Yedra, M. Scheel, S. Hallais, M. V. Upadhyay
Summary: During additive manufacturing of stainless steels, sub-micron sized oxide and non-oxide precipitates form, and a recent study confirmed that the precipitate composition can evolve during subsequent solid-state thermal cycling (SSTC). However, the study couldn't provide evidence on precipitate volume fraction, density, and size evolution. In this work, a novel experimental procedure was used to quantify these changes, revealing that new oxides nucleated during rapid SSTC, but dissolve during slow SSTC and annealing due to oxygen evaporation.
ADDITIVE MANUFACTURING
(2023)
Article
Chemistry, Multidisciplinary
Mihai Stoica, Baran Sarac, Florian Spieckermann, Jonathan Wright, Christoph Gammer, Junhee Han, Petre F. Gostin, Juergen Eckert, Joerg F. Loeffler
Summary: The study demonstrates that X-ray diffraction computed nanotomography can provide accurate details of the internal structure of metallic glasses, which is of great significance for the research of metallic materials at the nanoscale.
Review
Biochemistry & Molecular Biology
Valentina Bonanni, Alessandra Gianoncelli
Summary: Scanning transmission X-ray microscopy (STXM) allows imaging of biological specimens and collection of localized spectroscopic information through X-ray fluorescence (XRF) and/or X-ray Absorption Near Edge Spectroscopy (XANES). Recent publications in synchrotrons have utilized soft X-ray spectro-microscopy in life science and environmental research to explore complex metabolic mechanisms by tracing chemical elements involved in metabolic pathways.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Engineering, Biomedical
Xiaoyu Hu, Yuncheng Zhong, Yanqi Huang, Chenyang Shen, Xun Jia
Summary: This study proposes a simple and effective method to mitigate the blurring effect caused by the finite size of the x-ray focal spot and improve the resolution of cone beam computerized tomography (CBCT) images. By measuring the intensity distribution of the x-ray focal spot and deconvolving the CBCT images, the spatial resolution of the images is successfully improved, leading to enhanced visualization of fine animal anatomical structures.
PHYSICS IN MEDICINE AND BIOLOGY
(2022)
Article
Geochemistry & Geophysics
Megumi Matsumoto, Akira Tsuchiyama, Akira Miyake, Motoo Ito, Junya Matsuno, Kentaro Uesugi, Akihisa Takeuchi, Yu Kodama, Masahiro Yasutake, Epifanio Vaccaro
Summary: In this study, the three-dimensional microstructure and mineralogy of a Cosmic symplectite (COS) particle, COS#1, in the Acfer 094 carbonaceous chondrite were examined. The presence of micro-inclusions and a trilayered structure surrounding a large inclusion were revealed. The precursor of COS#1 is believed to have consisted of Fe-Ni metals and O-Na-S-rich material, which underwent hot corrosion and melt-induced processes in the nebula before being incorporated into the meteorite parent body.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Environmental Sciences
Bobby G. Duersch, Yanqi Luo, Si Chen, Steven A. Soini, Dawn M. Raja Somu, Vivian M. Merk
Summary: This study used state-of-the-art X-ray nanofluorescence imaging to quantitatively map and distribute macro- and micronutrients in the freshwater cyanobacteria Microcystis aeruginosa. The study found that phosphorus and potassium were colocalized as discrete semicircular hotspots, while calcium and copper concentrations were elevated along the division plane of cells. This X-ray imaging technique provides a better understanding of intracellular biochemical processes in cyanobacteria, aiding in monitoring and combating emerging environmental threats.
ENVIRONMENTAL POLLUTION
(2023)
Article
Instruments & Instrumentation
Silja Flenner, Stefan Bruns, Elena Longo, Andrew J. Parnell, Kilian E. Stockhausen, Martin Mueller, Imke Greving
Summary: This article verifies the efficient application of self-supervised denoising machine learning technique in high-resolution nanotomography, which eliminates noise without blurring structural features, providing a powerful tool for quantitative analysis in various scientific fields.
JOURNAL OF SYNCHROTRON RADIATION
(2022)
Article
Instruments & Instrumentation
S. Y. Li, Y. Y. Zhang, N. B. Zhang, H. L. Xie, D. Fan, S. N. Luo, L. Lu, S. Chen
Summary: This paper introduces a multiscale measurement system developed to accommodate different size requirements for synchrotron x-ray imaging and x-ray diffraction, allowing for full azimuthal range diffraction measurements and large field of view strain field measurements. Proof-of-principle experiments on a magnesium alloy demonstrate the feasibility of the system.
REVIEW OF SCIENTIFIC INSTRUMENTS
(2021)
Article
Pharmacology & Pharmacy
Thean Yeoh, Lisa Ma, Abu Zayed Badruddoza, Jaymin Shah, Shawn Zhang
Summary: This study investigates the use of X-ray microscopy (XRM) imaging to characterize the microstructure of semisolid formulations containing multiple immiscible phases. The results show that XRM imaging combined with artificial intelligence-based image processing can provide advanced characterization of semisolid formulation microstructure and offer richer details.
Review
Materials Science, Multidisciplinary
Joao Batista Souza Junior, Gabriel Ravanhani Schleder, Jefferson Bettini, Icamira Costa Nogueira, Adalberto Fazzio, Edson Roberto Leite
Summary: Atomic-scale structure determination is crucial for nanomaterial understanding and new technology development. Electron diffraction offers advantages for atomic structure characterization, with potential to become a routine tool in nanomaterial science.
Article
Multidisciplinary Sciences
Ayse Atakul-Ozdemir, Xander Warren, Peter G. Martin, Manuel Guizar-Sicairos, Mirko Holler, Federica Marone, Carlos Martinez-Perez, Philip C. J. Donoghue
Summary: Conodont elements, microfossil remains of extinct primitive vertebrates, are used as mineral archives of ocean chemistry to understand the palaeotemperature and chemical composition of past oceans. New research using various techniques has provided evidence that the white matter of conodont elements is a closed geochemical system, supporting its utility as a historical archive of Palaeozoic and Early Mesozoic ocean chemistry.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Qing Wu, Karolina Soppa, Elisabeth Mueller, Julian Mueller, Michal Odstrcil, Esther Hsiao Rho Tsai, Andreas Spaeth, Mirko Holler, Manuel Guizar-Sicairos, Benjamin Butz, Rainer H. Fink, Benjamin Watts
Summary: Using PXCT, we have investigated Zwischgold samples from medieval artworks and modern materials, revealing a decrease in density, an increase in corrosion products, and delamination between the leaf and its substrate.
