Soft X-ray spectromicroscopy and ptychography

AP Hitchcock - Journal of Electron Spectroscopy and Related …, 2015 - Elsevier
Instrumentation and current capabilities of soft X-ray (50–2000 eV) spectromicroscopy are
outlined with examples from recently published and some new work. Four common …

Organic matter in extraterrestrial water-bearing salt crystals

QHS Chan, ME Zolensky, Y Kebukawa, M Fries… - Science …, 2018 - science.org
Direct evidence of complex prebiotic chemistry from a water-rich world in the outer solar
system is provided by the 4.5-billion-year-old halite crystals hosted in the Zag and …

Design and performance of a compact scanning transmission X-ray microscope at the Photon Factory

Y Takeichi, N Inami, H Suga, C Miyamoto… - Review of Scientific …, 2016 - pubs.aip.org
We present a new compact instrument designed for scanning transmission X-ray
microscopy. It has piezo-driven linear stages, making it small and light. Optical components …

A novel organic-rich meteoritic clast from the outer solar system

Y Kebukawa, M Ito, ME Zolensky, RC Greenwood… - Scientific reports, 2019 - nature.com
The Zag meteorite which is a thermally-metamorphosed H ordinary chondrite contains a
primitive xenolithic clast that was accreted to the parent asteroid after metamorphism. The …

[HTML][HTML] Direct detection of Fe (II) in extracellular polymeric substances (EPS) at the mineral-microbe interface in bacterial pyrite leaching

S Mitsunobu, M Zhu, Y Takeichi, T Ohigashi… - Microbes and …, 2016 - jstage.jst.go.jp
We herein investigated the mechanisms underlying the contact leaching process in pyrite
bioleaching by Acidithiobacillus ferrooxidans using scanning transmission X-ray microscopy …

Primordial organic matter in the xenolithic clast in the Zag H chondrite: Possible relation to D/P asteroids

Y Kebukawa, ME Zolensky, M Ito, NO Ogawa… - … et Cosmochimica Acta, 2020 - Elsevier
Some xenolithic clasts in meteorites may have originated from unique primitive Solar System
bodies. These clasts would provide novel insights into the early evolution of the Solar …

Spatial inhomogeneity of chain orientation associated with strain-induced density fluctuations in polyethylene

M Arakawa, M Kishimoto, Y Nakanishi, K Mita… - Polymer Journal, 2022 - nature.com
We found the spatial inhomogeneity of chain orientation on the submicron scale in
polyethylene (PE) under strain by scanning transmission X-ray microscopy (STXM). Our …

One-Year In Situ Incubation of Pyrite at the Deep Seafloor and Its Microbiological and Biogeochemical Characterizations

S Mitsunobu, Y Ohashi, H Makita… - Applied and …, 2021 - Am Soc Microbiol
In this study, we performed a year-long in situ incubation experiment on a common ferrous
sulfide (Fe-S) mineral, pyrite, at the oxidative deep seafloor in the hydrothermal vent field in …

Characterization of particulate matters in the Pripyat River in Chernobyl related to their adsorption of radiocesium with inhibition effect by natural organic matter

H Suga, Q Fan, Y Takeichi, K Tanaka, H Kondo… - Chemistry …, 2014 - academic.oup.com
Although cesium adsorbs onto the interlayer of clay minerals, coexisting natural organic
matter (NOM) can inhibit this adsorption because of their blocking effect. A large amount of …

Nanoscale identification of extracellular organic substances at the microbe–mineral interface by scanning transmission X-ray microscopy

S Mitsunobu, M Zhu, Y Takeichi, T Ohigashi… - Chemistry …, 2015 - academic.oup.com
In the present study, we applied a scanning transmission X-ray microscopy (STXM)
technique to investigate the spatial distribution of biomolecules at the microbe–mineral …