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Non-invasive electron paramagnetic resonance imaging detects tumor redox imbalance induced by ferroptosis.
Redox Rep
December 2025
Laboratory of Radiation Biology, Department of Applied Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan.
Targeting ferroptosis, cell death caused by the iron-dependent accumulation of lipid peroxides, and disruption of the redox balance are promising strategies in cancer therapy owing to the physiological characteristics of cancer cells. However, the detection of ferroptosis using imaging remains challenging. We previously reported that redox maps showing the reduction power per unit time of implanted tumor tissues via non-invasive redox imaging using a novel, compact, and portable electron paramagnetic resonance imaging (EPRI) device could be compared with tumor tissue sections.
View Article and Find Full Text PDFA Ring-Shaped Lithium Metal Anode Enables High-Performance All-Solid-State Batteries Revealed by In Situ L-Band EPR Imaging.
J Phys Chem Lett
January 2025
Shanghai Key Laboratory of Magnetic Resonance, Institute of Magnetic Resonance and Molecular Imaging in Medicine, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, P. R. China.
In traditional operations of all-solid-state lithium metal batteries (ASSLMBs), a small thin lithium metal circular disk is employed as a lithium metal anode (LMA). However, ASSLMBs with a circular-disk LMA often fail in <150 cycles with low capacity retention. In this work, we developed a new ring-shaped LMA to improve cyclability.
View Article and Find Full Text PDFEffect of 3D Cornflower-like MoS-Assisted Peroxymonosulfate Process on Pesticide Removal and Aroma Quality Retaining for Tomato Fruits.
J Agric Food Chem
January 2025
Institute of Tobacco Research, Chinese Academy of Agricultural Sciences, Qingdao 266101, P.R. China.
The application of neonicotinoid insecticides (NEOs) increases the potential exposure risks and has an impact on the aroma quality of tomato fruits. Here, 3D cornflower-like MoS (MoS-CF) was fabricated to directly activate peroxymonosulfate (PMS) for fast removal of three typical NEOs. The 3D MoS-CF catalyst achieved over 96.
View Article and Find Full Text PDFComposite spin probes with adjustable oxygen sensitivity for pulse electron paramagnetic resonance imaging.
Magn Reson Med
January 2025
Oxygen Measurement Core, O2M Technologies, LLC, Chicago, Illinois, USA.
Purpose: Solid crystalline spin probes, such as lithium phthalocyanine (LiPc) and lithium octa-n-butoxynaphthalocyanine (LiNc-BuO), allow repeated oxygen measurement using electron paramagnetic resonance (EPR). Due to their short relaxation times, their use for pulse EPR oxygen imaging is limited. In this study, we developed and tested a new class of solid composite spin probes that modified the relaxation rates R and R of LiPc or LiNc-BuO probes, which allowed pO measurements in the full dynamic (0-760 torr) range.
View Article and Find Full Text PDFThree-dimensional whole-body imaging of the bioreduction and clearance of nitroxide probes in the thoracic and abdominal regions of mice using a compact and mobile electron paramagnetic resonance imager.
Magn Reson Med
January 2025
Advanced Research Promotion Center, Health Sciences University of Hokkaido, Ishikari, Japan.
Purpose: Redox homeostasis plays a key role in regulating the overall health and development of organisms. This study aimed to develop a compact and mobile continuous-wave (CW) electron paramagnetic resonance (EPR) imager to facilitate stable, highly sensitive fast three-dimensional (3D) whole-body imaging of nitroxide-infused mice.
Methods: A multiturn loop gap resonator with a diameter of 30 mm and length of 35 mm was designed for whole-body EPR imaging.
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