Results 51 to 60 of about 525,920 (315)

Fresnel coherent diffractive imaging tomography of whole cells in capillaries

New Journal of Physics, 2014
X-ray tomography can be used to study the structure of whole cells in close to their native state. Ptychographic Fresnel coherent diffractive imaging (FCDI) holds particular promise for high-resolution tomographic imaging with quantitative phase ...
Mac B Luu, Grant A van Riessen, Brian Abbey, Michael W M Jones, Nicholas W Phillips, Kirstin Elgass, Mark D Junker, David J Vine, Ian McNulty, Guido Cadenazzi, Coralie Millet, Leann Tilley, Keith A Nugent, Andrew G Peele   +13 more
doaj   +1 more source

The planar cell polarity protein Vangl2 interacts with the PDZ‐domains of Scribble but not with a unique PDZ‐like domain in Inturned

FEBS Letters, EarlyView.
Structural and biochemical characterisations show that the planar cell polarity (PCP) protein Inturned harbours a unique PDZ‐like domain that does not bind canonical PDZ‐binding motifs (PBMs) like that of another PCP protein Vangl2. In contrast, the apical‐basal polarity protein Scribble contains four PDZ domains that bind Vangl2, but one PDZ domain ...
Stephan Wilmes, Jan Brysch, Carmen Gelze, Lilli Meier, Daniel Kümmel   +4 more
wiley   +1 more source

Single Photon Counting X Ray Micro Imaging of Biological Samples [PDF]

, 2009
In this thesis, performed in the framework of the interdisciplinary research of the Italian National Institute of Physics (INFN) and within a collaboration with Prof. S.
Frallicciardi, Paola Maria
core  

Extending Imaging Volume in Soft X‐Ray Tomography

Advanced Photonics Research, 2023
Soft X‐ray tomography offers rapid imaging of whole, single cells with a few tens of nanometers spatial resolution without fixation or labeling. Herein, this technique is limited to specimens about 10 μm thick, such that applications of soft X‐ray ...
Axel Ekman, Jian-Hua Chen, Bieke Vanslembrouck, Valentina Loconte, Carolyn A. Larabell, Mark A. Le Gros, Venera Weinhardt   +6 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Phase contrast imaging with a laboratory-based microfocus X-ray source [PDF]

, 2007
This project looks at the design of an in-line X-ray phase contrast imaging system, based around the Bede Microsource®, on a suitable scale for imaging small pathological samples. The system is applied to two test objects to assess feasibility of its use
Kelly, Kathryn L, Kelly, Kathryn L.
core  

The Imaging X-Ray Polarimetry Explorer (IXPE): technical overview IV [PDF]

, 2021
Scheduled to launch in late 2021 the Imaging X-ray Polarimetry Explorer (IXPE) is a Small Explorer Mission designed to open up a new window of investigation -- X-ray polarimetry.
Marshall, Herman L., Seek, Tim, McCracken, Jeffrey, Santoli, Francesco, Gurnee, Eli, Oppedisano, Chiara, DEL MONTE, Ettore, Latronico, Luca, Ramsey, Brian D., Fabiani, Sergio, Hibbard, Grant, Borotto, Fabio, McEachen, Michael, Wedmore, Jeffery, Byggott, H. Kyle, Johnson, Samantha, Forsyth, Brent, Lorenzi, Paolo, Mitsuishi, Ikuyuki, Breeding, Shawn, Rubini, Alda, Tennant, Allyn, O'Dell, Stephen, Pacheco, Richard, Tobia, Antonino, Xie, Fei, Le Roy, Shelley, La Monaca, Fabio, Delmonte, Ettore, Baumgartner, Wayne H., MASSARO, FRANCESCO, Muleri, Fabio, Cavazutti, Elisabetta, Castronuovo, Marco, Kilaru, Kiranmayee, Matt, Giorgio, Welch, David, ANTONELLI, Lucio Angelo, Pinchera, Michele, Kalinowski, William, Deininger, William D., brez, alessandro, Ferrazzoli, Riccardo, Tardiola, Marcello, LOFFREDO, Pasqualino, Ferrant, Kevin, Tamagawa, Toru, Garelick, Benjamin, Head, Michael, Ranganathan, Jaganathan, Scalise, Emanuele, Perri, Matteo, Sciortino, Andrea, Mitchell, Scott, Pilia, Maura, Baggett, Randy M., Massaro, Francesco., Brienza, Daniele, Attina, Primo, Caporale, Ciro, Maddox, Tyler, Mangravati, Elio, Magazzu, Guido, Speegle, Chet O., Minuti, Massimo, Baldini, Luca, Amici, Fabrizio, Pesce-Rollins, Melissa, Mize, Rondal, Mereu, Paolo, Evangelista, Yuri, Di Marco, Alessandro, Di Persio, Giusseppe, Marrocchesi, Alessandra, Painter, Will, Peterson, Colin, Morbidini, Alfredo, Centrone, Mauro, Puccetti, Simonetta, Nguyen, Toan, Costa, Enrico, Lofredo, Pasqualino, Sanchez, Javier, Walden, Amy L., Orsini, Leonardo, Bachetti, Matteo, Sgro, Carmelo, Cardelli, Claudia, Citraro, Saverio, Vimercati, Marco, Ceccanti, Marco, Soffitta, Paolo, Dolan, David, ATTINA', PRIMO, Alexander, Cheryl, Negri, Barbara, Weisskopf, Martin C., Nitschke, Isaac, Nasimi, Hikmat, Reedy, Lee, D'Alba, Elisa, Lucchesi, Leonardo, Antonelli, Angelo, Ratheesh, Ajay, Root, Noah, Bongiorno, Stephen D., D'Amico, Fabio, Allen, D. Zachery, Onizuka, Mitch, Dietz, Kurtis L., Donnarumma, Immacolata, Mauger, David, Barbanera, Mattia, Rankin, John, Bellazzini, Ronaldo, Trois, Alessio, Bladt, Jeff, Thomas, Nicholas E., Ferrie, MacKenzie, Sarra, Paolo, Kelly, Eric, Nuti, Alessio, DI PERSIO, GIUSEPPE, Negro, Michela, Maldera, Simone, Marengo, Marco, Tennant, Allyn F., Boree, Christopher, Paggi, Alessandro, Footdale, Joseph, Castellano, Simone, Osborne, Darren, Foster, Michelle, Mosti, Federico, Lefevre, Carlo, Kolodziejczak, Jeffery J., Pentz, Christina, Weddendorf, Bruce, Manfreda, Alberto, Carpentiero, Rita, Spandre, Gloria, Profeti, Alessandro, Andersen, Jason, Bonino, Rafaella, Valerie, Robert, Schroeder, Christopher, Zanetti, Francesco, Di Lalla, Niccolo, Piazzolla, Raffaele, Pavelitz, Steven D., Sosdian, Kalie, Antoniak, Spencer, Ruswick, Stephanie, Cavalli, Luca, Romani, Roger W., Gunji, Shuichi   +155 more
core   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

A plasma source for an imaging X-ray microscope [PDF]

, 2022
Pinch Plasmas are sources of high brilliance for soft x-rays in the wavelength range from Lambda equal 0.1 nm to 20 nm. A plasma focus device emitting line radiation of hydrogen-like nitrogen (N VII) at Lambda equal 2.5 nm into the water window region ...
Neff, W., Richter, F., Holz, R., Rothweiler, D., Lebert, R.   +4 more
core  

Algorithms for joint activity–attenuation estimation from positron emission tomography scatter

EJNMMI Physics, 2019
Background Attenuation correction in positron emission tomography remains challenging in the absence of measured transmission data. Scattered emission data may contribute missing information, but quantitative scatter-to-attenuation (S2A) reconstruction ...
Yannick Berker, Volkmar Schulz, Joel S. Karp   +2 more
doaj   +1 more source