Results 51 to 60 of about 1,251,014 (199)

X‐ray Fluorescence Microscopy Computed Tomography Reveals Internal Distribution of Selenium in Hyperaccumulator Plant Seeds

Ecological Research, Volume 41, Issue 3, May 2026.
Selenium hyperaccumulators are plants able to accumulate over 1000 mg/kg in their shoots while growing in their natural environments. The distribution of selenium in the seeds of the three key hyperaccumulating species was elucidated using X‐ray fluorescence microscopy computed tomography (XFM‐CT). ABSTRACT Selenium hyperaccumulators are plants able to
Mirko Salinitro, Michela Schiavon, Maggie‐Anne Harvey, Dennis Brueckner, Antony van der Ent   +4 more
wiley   +1 more source

Micro-PIXE imaging of the rib bones of rats

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
The ribs are bones that constitute the ribcage and consist of three regions: cartilage, costochondral junction with growth plate structures, and hard bone. In this study, frozen sections of rat ribs were prepared, and the distributions of calcium (Ca), phosphorus (P), potassium (K), and sulfur (S) were examined using particle-induced X-ray emission ...
Haruko Yakumaru, Yugo Kato, Masakazu Oikawa, Chiya Numako, Daisuke Ohsawa, Izumi Tanaka, Akihiro Uehara, Hiroshi Ishihara, Shino Homma-Takeda   +8 more
openaire   +3 more sources

Influence of Root‐Applied Glutathione on Nickel Uptake and Distribution in Brassica Roots

Ecological Research, Volume 41, Issue 3, May 2026.
This study indicates that exogenous glutathione (GSH) applied to the roots inhibits nickel (Ni) uptake and its translocation to the shoots in hydroponically grown Brassica napus. Micro‐PIXE imaging further revealed that GSH reduces Ni accumulation near the stele, indicating inhibition of Ni radial transport toward the vascular tissues.
Mayu Tashiro, Yutaro Hirahara, Momoko Nonoyama, Yuji Nakai, Ryohei Yamagata, Yasuyuki Ishii, Takahiro Satoh, Yusaku Noda, Yuta Miyoshi, Kazuyuki Enomoto, Yong‐Gen Yin, Nobuo Suzui, Naoki Kawachi, Akihisa Shinozawa, Kanna Sato‐Izawa, Shin‐ichi Nakamura   +15 more
wiley   +1 more source

Rapid Arbitrary‐Shape Microscopy of Unsectioned Tissues for Precise Intraoperative Tumor Margin Assessment

Advanced Science, Volume 13, Issue 8, 9 February 2026.
This study presents a novel microscopic imaging system capable of rapid, section‐free scanning of irregular tissue surfaces, delivering high sensitivity for detecting cancer cell clusters during intraoperative tumor margin assessment. Abstract Rapid and accurate intraoperative examination of tumor margins is crucial for precise surgical treatment, yet ...
Zhicheng Shao, Xiangwei Meng, Peifen Fu, Keer Huang, Xibei Chen, Yue Ying, Jun Li, Yuxin Zheng, Xiaolong Li, Hyeon Jeong Lee, Jingyi Feng, Yuexin Lu, Runping Cai, Xiongling Jiang, Qing Chen, Hong Zhang, Xiaoyong Man, Li Lin   +17 more
wiley   +1 more source

ARROWHEADS AND DOLPHINS: PRE-COINAGE MONETARY INSTRUMENTS FROM THE WESTERN BLACK SEA (5th CENTURY BC)

Journal of Ancient History and Archaeology
During the last decade, archaeological research carried out at Istros and other points of interest in the western Black Sea has led to the discovery of some rare or even unique pre-coinage monetary instruments.
Gabriel Mircea TALMAȚCHI
doaj   +1 more source

Painting on copper: research on the materials and techniques used on ground layer according to historical treatises and analytical study of two paintings attributed to the Portuguese and Flemish schools

Conservar Património, 2018
Paintings on copper were mostly produced from the 16th century until the end of the 17th century. Nevertheless, its production never ceased completely, and examples can be found in the 20th century.
Daniel Vega, Isabel Pombo Cardoso, Leslie Carlyle   +2 more
doaj   +1 more source

Iron and ferritin accumulate in separate cellular locations in Phaseolus seeds

BMC Plant Biology, 2010
Background Iron is an important micronutrient for all living organisms. Almost 25% of the world population is affected by iron deficiency, a leading cause of anemia. In plants, iron deficiency leads to chlorosis and reduced yield. Both animals and plants
Blair Matthew W, Mesjasz-Przybyłowicz Jolanta, Jurkiewicz Anna M, Urbanski Dorian F, Przybyłowicz Wojciech J, Cvitanich Cristina, Astudillo Carolina, Jensen Erik Ø, Stougaard Jens   +8 more
doaj   +1 more source

Enhanced deoxyviolacein bioproduction via enzyme condensation with a yeast glycolytic enzyme‐derived peptide tag

Biotechnology Progress, Volume 42, Issue 1, January/February 2026.
Fusion of a 27‐amino‐acid peptide tag derived from a glycolytic enzyme enabled artificial assembly formation of the two violacein biosynthetic enzymes, VioE and VioC. This assembly resulted in enhanced biosynthesis of deoxyviolacein. Abstract In microbial production, regulating endogenous and exogenous synthetic pathways is essential.
Rioko Ito, Sayoko Ito‐Harashima, Naoko Segawa, Natsuko Miura, Michihiko Kataoka   +4 more
wiley   +1 more source

PIXE and micro-PIXE studies of exogenous element distributions in animal organs

, 1991
A pilot study was undertaken with aluminium and strontium in order to determine the path taken when they enter an organism. Rabbits received an intramuscular injection of A1, and thin tissue cryo-sections and pelletized and incinerated samples were ...
E. Rokita, P. H. A. Mutsaers, Mutsaers, P.H.A., Munnik, F., M. J. A. de Voigt, Voigt, de, M.J.A., Rokita, E., F. Munnik   +7 more
core   +1 more source

Microanálise com feixes de íons : caracterização de elementos leves em materiais via micro-NRA e micro-PIXE [PDF]

, 2014
O Laboratório de Implantação Iônica (LII) do IF-UFRGS possui uma linha de microfeixe instalada há poucos anos e que se encontra em fase de otimização e desenvolvimento. Esta é a primeira e única linha de microfeixe de íons instalada no Brasil e, portanto,
Niekraszewicz, Liana Appel Boufleur
core   +1 more source