Results 81 to 90 of about 1,208,754 (253)

Multicolor spectral photon counting CT monitors and quantifies therapeutic cells and their encapsulating scaffold in a model of brain damage

, 2020
International audienceRationale & aim: Various types of cell therapies are currently under investigation for the treatment of ischemic stroke patients.
Boussel, Loic, Vandamme, Marc, Chhour, Peter, da Silva, Claire Crola, Si-Mohamed, Salim, Cormode, David, Balegamire, Joëlle, Dumot, Chloé, Chereul, Emmanuel, Berthezène, Yves, Cuccione, Elisa, Hubert, Violaine, Wiart, Marlène, Chevalier, Yves, Douek, Philippe, Kim, Johoon   +15 more
core   +1 more source

Origin of Enhanced Efficiency and Reduced Roll‐Off in Organic Light‐Emitting Diodes Based on Pt(II) Complexes

Advanced Science, EarlyView.
Controlled Pt–Pt fine structure in square‐planar Pt(II) complexes governs metal–metal‐to‐ligand charge‐transfer (MMLCT) state formation, exciton dynamics, and organic light‐emitting diode performance. Short Pt–Pt contacts in Pt(fppz)2 enable coherent metal–metal coupling, sub‐microsecond emission and an external quantum efficiency of 29%, whereas ...
Atul Shukla, Sarah K. M. McGregor, Julian A. Steele, Innes K. Gale, Kiyoshi Miyata, Monirul Hassan, Christian McDonald, Romain J. Lepage, Eduardo Solano, Pilankatta K. Ramya, Cherumuttathu H. Suresh, Takumi Ehara, Chihaya Adachi, Ken Onda, Shih‐Chun Lo, Ebinazar B. Namdas   +15 more
wiley   +1 more source

Photon-counting-detector CT outperforms state-of-the-art cone-beam and energy-integrated-detector CT in delineation of dental root canals

Scientific Reports
This experimental phantom study investigates current standard of care protocols in cone beam computed tomography (CBCT), energy-integrating-detector (EID) CT, and photon-counting-detector (PCD) CT regarding their potential in delineation of dental root ...
Stephan Rau, Martin Peter Pichotka, Alexander Rau, Marco Reisert, Markus Jörg Altenburger, Rainer Schmelzeisen, Fabian Cieplik, Fabian Bamberg, Maximilian Frederik Russe, Wiebke Semper-Hogg   +9 more
doaj   +1 more source

Photon counting carbon dioxide gas sensing at 2.05 mu m wavelength

, 2023
We demonstrate proof-of-principle carbon dioxide (CO2) sensing at 2.05 mu m wavelength using a commercial infrared superconducting nanowire single photon detector (SNSPD).
MacKenzie, Ewan N.,, Zwiller, Val,, Staffas, Theodor,, Hadfield, Robert H.,   +3 more
core   +1 more source

Mesoporous PU/PEDOT:PSS Electrodes Reveal Population‐Level Stochastic Bioelectrical Dynamics in Marine Diatoms

Advanced Science, EarlyView.
Mesoporous mixed ionic‐electronic PU/PEDOT: PSS electrodes enable label‐free detection of stochastic extracellular bioelectrical dynamics in living Phaeodactylum tricornutum. Living diatoms actively modulate interfacial ionic dynamics, establishing stochastic electrochemical noise as a sensitive probe of microbial bioelectrochemical activity and a new ...
David M. S. Silva, Felipe L. Bacellar, Raquel Amaral, Louis‐Josselin Lavier‐Aydat, Luísa Cortes, Kamal Asadi, Leïla Tirichine, Paulo R. F. Rocha   +7 more
wiley   +1 more source

Photon-counting CT outperforms dental CBCT in detecting small accessory canals in root-filled teeth in a phantom study

Scientific Reports
Accurate visualization of dental structures in root-filled teeth is critical for endodontic assessment but challenging due to artifacts from root canal (RC) fillings.
Stephan Rau, Alexander Rau, Friederike Lang, Anna Fink, Jakob Weiß, Elias Kellner, Fabian Bamberg, Britta A. Jung, Rainer Schmelzeisen, Martin Pichotka, Markus Altenburger, Maximilian Frederik Russe, Wiebke Semper-Hogg   +12 more
doaj   +1 more source

A prototype detector module for combined PET/CT or combined photon counting/standard CT based on SiPM technology

, 2009
A method extending the functionality of silicon photomultipiers (SiPMs) has been developed. It enables the use of SiPMs for quantifying high radiation fluxes in current mode as well as in pulse mode measurements for counting and characterizing individual
Persson, Andreas,, Khaplanov, Anton, Cederwall, Bo,   +2 more
core   +1 more source

AARS1‐Mediated H3K27 Lactylation Rewires Glycolysis to Sustain Aggressive and Recurrent Bladder Cancer

Advanced Science, EarlyView.
AARS1 drives PI3K–AKT–mTOR‐dependent glycolysis in bladder cancer, promoting lactate accumulation, increased lactylation, H3K27la enrichment at the HK2 promoter, and HK2 transcription. HK2 reinforces glycolysis, sustaining a metabolic–epigenetic program associated with tumor progression, recurrence, and metastasis.
Qin Yuan, Tianbao Song, Yipeng He, Sihan Xia, Yaoqiu Huang, Wenlin He, Qin Yi, Zefeng Wang, Peihan Wang, Chenbo Huang, Linzhi Li, Zhen Yin, Fan Cheng, Weimin Yu   +13 more
wiley   +1 more source

Advances in application of photon-counting CT for pancreatic imaging [PDF]

Zhenduanxue lilun yu shijian
Photon-counting computed tomography (PCCT) is an advanced CT imaging technology based on novel photon-counting detectors. Compared to traditional energy-integrating detector CT (EID-CT), PCCT demonstrates significant advantages in radiation dose ...
HUANG Ruikun, YANG Yanzhao, CHAI Weimin
doaj   +1 more source

Cancer‐Associated Fibroblasts Promote Glucose Metabolic Reprogramming and Progression of Triple‐Negative Breast Cancer via Exosomal circFAD104‐Mediated Intercellular Communication

Advanced Science, EarlyView.
CAF‐derived exosomes deliver circFAD104 into TNBC cells, where it acts as a molecular scaffold that bridges the E3 ligase MARCHF8 and PGM1, promoting MARCHF8‐mediated K48‐linked ubiquitination and proteasomal degradation of PGM1. Loss of PGM1 redirects glucose‐phosphate flux from glycogen synthesis toward glycolysis, thereby driving stemness, EMT, and ...
Lei Wang, Xiaoyan Li, Yiran Liang, Yifei Wang, Yuhan Jin, Jianing Wang, Dan Luo, Yuxia Yang, Jingze Yang, Yaming Li, Tong Chen, Dianwen Han, Zekun Wang, Wenjing Zhao, Bing Chen, Lijuan Wang, Qifeng Yang   +16 more
wiley   +1 more source