Results 81 to 90 of about 824 (176)

Combining Nanofocused X-Rays with Electrical Measurements at the NanoMAX Beamline

Crystals, 2019
The advent of nanofocused X-ray beams has allowed the study of single nanocrystals and complete nanoscale devices in a nondestructive manner, using techniques such as scanning transmission X-ray microscopy (STXM), X-ray fluorescence (XRF) and X-ray ...
Lert Chayanun, Susanna Hammarberg, Hanna Dierks, Gaute Otnes, Alexander Björling, Magnus T Borgström, Jesper Wallentin   +6 more
doaj   +1 more source

Anomalous magnetic orientations of magnetosome chains in a magnetotactic bacterium: Magnetovibrio blakemorei strain MV-1. [PDF]

PLoS ONE, 2013
There is a good deal of published evidence that indicates that all magnetosomes within a single cell of a magnetotactic bacterium are magnetically oriented in the same direction so that they form a single magnetic dipole believed to assist navigation of ...
Samanbir S Kalirai, Dennis A Bazylinski, Adam P Hitchcock   +2 more
doaj   +1 more source

Real‐Time Investigation of Interfacial Evolution in Electrochemical Energy Storage Systems via EQCM

Advanced Science, Volume 13, Issue 46, 17 August 2026.
Understanding the electrode/electrolyte interface (EEI) is crucial for supercapacitors and batteries. EQCM, by enabling real‐time monitoring of mass changes during charge–discharge cycles, has evolved into a vital method for analysis of EEI. It provides important insights into charge‐storage mechanisms, electrode structural evolution, ion‐transfer ...
Zixuan Wang, Situo Cheng, Guang Feng
wiley   +1 more source

Giant Exfoliation Induced Magnetic Coercivity in Fe3GaTe2

Advanced Electronic Materials, Volume 12, Issue 15, 10 August 2026.
Mechanical exfoliation is shown to transform the van der Waals ferromagnet Fe3GaTe2 from a soft into a hard magnetic system. Reducing thickness drives a crossover to single‐domain behavior, dramatically enhancing in‐plane coercivity to near–permanent‐magnet levels at room temperature.
Lingrui Mei, PeiYu Cai, Sang‐Eon Lee, Yue Li, Shyam Raj Karullithodi, Vadym Kulichenko, Charudatta Pathak, Elton J. G. Santos, Luis Balicas   +8 more
wiley   +1 more source

STXM search for carbonate in samples of Comet 81P/Wild 2

Journal of Physics: Conference Series, 2009
We employed a Scanning Transmission X-ray Microscope (STXM) to search for carbonate in samples of dust from Comet 81P/Wild 2 collected by NASA's Stardust spacecraft. Although carbonate was not expected in Wild 2 because it generally forms by aqueous processing, which is not thought to occur on comets, we identified two sub-micron carbonate grains in ...
G J Flynn, S Wirick, L P Keller, C Jacobsen   +3 more
openaire   +1 more source

Thermal histories of El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155): Implications for the diversity of IAB‐ungrouped iron meteorites and their parent bodies

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1763-1787, August 2026.
Abstract This study provides the first petrographic, crystallographic, and chemical comparison between El Médano 300 (EM 300) and Northwest Africa 8155 (NWA 8155), two particular IAB‐ungrouped iron meteorites. Both contain exceptionally large graphite nodules and “flowers”, providing unique insights into carbon behavior in metallic melts and cooling ...
L. Perez, M. Roskosz, F. Danoix, L. Kern, V. Megevand, C. Brillatz, B. Devouard, J. Gattacceca, M. Gounelle   +8 more
wiley   +1 more source

Autotrophic biofilms sustained by deeply sourced groundwater host diverse bacteria implicated in sulfur and hydrogen metabolism

Microbiome
Background Biofilms in sulfide-rich springs present intricate microbial communities that play pivotal roles in biogeochemical cycling. We studied chemoautotrophically based biofilms that host diverse CPR bacteria and grow in sulfide-rich springs to ...
Luis E. Valentin-Alvarado, Sirine C. Fakra, Alexander J. Probst, Jonathan R. Giska, Alexander L. Jaffe, Luke M. Oltrogge, Jacob West-Roberts, Joel Rowland, Michael Manga, David F. Savage, Chris Greening, Brett J. Baker, Jillian F. Banfield   +12 more
doaj   +1 more source

Synchronous (Lock‐in) Measurement Techniques for Magnetic Contrast Enhancement in STXM

AIP Conference Proceedings, 2011
We have explored the capabilities of synchronous (“lock‐in”) point detection techniques to enhance the x‐ray magnetic circular dichroism (XMCD) contrast in scanning x‐ray transmission microscopy (STXM) of magnetic thin‐film microstructures. Local absorption contrast, measured synchronously with low‐amplitude (
K. Kaznatcheev, D. Bertwistle, C. Cheng, S. Zohar, W. E. Bailey   +4 more
openaire   +1 more source

Spherulite in the modern aragonitic travertine stromatolite has a calcite core with exopolymers

Sedimentology, Volume 73, Issue 5, Page 1421-1434, August 2026.
ABSTRACT Spherulites are spherical to ellipsoidal particles formed by various crystalline substances and can be abiotically synthesised in the laboratory. Among various spherulite types, spherulites composed of calcium carbonate are also found in various natural environments, but their abiotic or biotic origins are still controversial.
Fumito Shiraishi, Takayuki Akimoto, Naotaka Tomioka, Satoko Motai, Yoshio Takahashi   +4 more
wiley   +1 more source

Variability in DPA and calcium content in the spores of Clostridium species

Frontiers in Microbiology, 2016
Spores of a number of clostridial species, and their resistance to thermal treatment is a major concern for the food industry. Spore resistance to wet heat is related to the level of spore hydration, which is inversely correlated with the content of ...
Jan Jamroskovic, Jan Jamroskovic, Zuzana Chromikova, Cornelia List, Barbora Bartova, Imrich Barak, Rizlan Bernier-Latmani   +6 more
doaj   +1 more source