Results 81 to 90 of about 13,515 (191)

A novel approach for Technetium-99m radioisotope transportation and storage in lead-free glass containers: A comprehensive assessment through Monte Carlo simulation technique

International Journal of Computational and Experimental Science and Engineering
The primary aim of this project is to develop glass containers that are free from lead for the transportation of Tc-99m. The analysis included glass container structures characterized by the chemical formula 60B2O3-(25-x)GeO2-15BaO-xWO3 (where x ranges from 0 to 25). The rates of addition, in theory, range from 3.397 to 4.124 g/cm3.
openaire   +1 more source

Experimental activation assessment of open‐type yoke in a PET cyclotron by non‐destructive/destructive γ‐ray measurement approaches

Medical Physics, Volume 53, Issue 9, September 2026.
Abstract Background During decommissioning of positron emission tomography (PET) cyclotron facilities, metallic components—including the iron yoke—are typically classified as radioactive waste, incurring substantial disposal costs. In contrast to concrete, standardized decommissioning procedures for metallic components have not yet been established ...
Go Yoshida, Hiroshi Matsumura, Akihiro Toyoda, Hajime Nakamura, Kazuyoshi Masumoto, Taichi Miura, Eisuke Watanabe, Kiyokazu Tsugane, Katsuhiko Saito, Iwane Koumura, Hiroyuki Uno, Masahiko Kozaki, Ayumi Yamamoto, Jun Toyohara, Kei Wagatsuma   +14 more
wiley   +1 more source

Azide‐PEG‐Folate Functionalized Gadolinium Nanoparticles: A Preliminary Click‐Chemistry Platform for Magnetic Resonance Imaging Contrast

ChemistryOpen, Volume 15, Issue 9, September 2026.
The click‐modified targeted gadolinium nanoparticles are presented as a development of a multifunctional MRI contrast agent. The nanoplatform demonstrates improved stability and selective cellular targeting, and is expected to facilitate more precise tumor imaging while enabling further bioorthogonal conjugation for advanced cancer diagnosis and ...
Retna Putri Fauzia, Azmi Aulia Rahmani, Zahra Afriani, Theresia Cicilia Magdalena, Cindy Florencia Sutanto, Galuh Yuliani, Angga Cipta Narsa, Safri Ishmayana, Ratna Dini Haryuni, Huanhuan Liu, Santhy Wyantuti   +10 more
wiley   +1 more source

The Evolution of Autonomous Systems for Planetary Cave Exploration: A Review

Journal of Field Robotics, Volume 43, Issue 6, Page 4094-4115, September 2026.
ABSTRACT The exploration of Subsurface Access Points (SAPs), such as lava tubes on the Moon and Mars, has gained significant interest due to their potential as stable environments shielded from surface radiation and temperature extremes. These sites are considered high‐value targets for detecting water and signs of ancient life, and assessing their ...
Sarah Swinton, Daniel Mitchell, Jamie Blanche, Euan McGookin, David Flynn   +4 more
wiley   +1 more source

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Chelator Free Radiolabeling and Preclinical Evaluation of η6‐Arene Sandwich Complexes of Lenalidomide With Rhenium and Technetium‐99m

ChemBioChem, Volume 27, Issue 16, 27 August 2026.
Direct, chelator‐free radiolabeling of lenalidomide is achieved via η6‐arene coordination to technetium‐99m and rhenium, forming sandwich complexes. The radiotracer shows rapid blood clearance, predominant renal excretion, and good in vivo stability, highlighting its potential as a pharmacokinetic probe.
Qaisar Nadeem, Federica Battistin, Daniel Hernández Valdés, Afaf R. Genady, Luis Rafael Silva Mendez, Saman Sadeghi, Olivier Blacque, Roger Alberto   +7 more
wiley   +1 more source

Assessment of Soil Erosion Over Six Decades in a Long‐Term Experiment Using Fallout 137Cs and RUSLE: A South American Case Study

Land Degradation &Development, Volume 37, Issue 13, Page 9038-9052, 15 August 2026.
ABSTRACT Soil erosion remains a major global concern affecting agricultural productivity and land sustainability. This study investigates the magnitude and variability of soil erosion in a long‐term experiment (LTE) established in 1963 in Colonia, Uruguay, aiming to compare the performance of the 137Cs tracer technique and the RUSLE model across ...
Marcos Tassano, Mirel Cabrera, Joan Gonzalez, Mario Perez‐Bidegain, Olivier Evrard, Kathrin Grahmann, J. Andrés Quincke   +6 more
wiley   +1 more source

Nanoplatforms for Sentinel and Tumor‐Draining Lymph Node Mapping: From Visualization to Pathway‐Informed Staging

Advanced Healthcare Materials, Volume 15, Issue 30, 14 August 2026.
Lymphotropic nanoplatforms integrate multimodal imaging with therapeutic guidance to map sentinel and tumor‐draining lymph nodes, revealing functional drainage, metastatic involvement, and nodal accessibility, while providing mechanistic insight to support precision surgical and therapeutic interventions.
Xu Chen, Nina Li, Meiyan Zou, Zihao Zhou, Rongwei Xu, Weiyao Feng, Xinyuan Zhao, Li Cui   +7 more
wiley   +1 more source

The Development and Pilot Clinical Study of CD147 Targeted Antagonistic Peptide Probe for Tumor Imaging

Advanced Science, Volume 13, Issue 46, 17 August 2026.
This study establishes [68Ga]Ga‐DOTA‐AP9 as a first‐in‐human CD147‐targeted PET tracer with favorable safety and specific tumor uptake. Tracer accumulation correlates with CD147 expression in patients, enabling noninvasive quantification of CD147‐positive malignancies.
Xiaokun Ma, Rui Guo, Dongfeng Niu, Yufei Song, Zhenyao Zhang, Xiangxi Meng, Lili Mao, Haifeng Huang, Hua Zhu, Zhi Yang, Teli Liu   +10 more
wiley   +1 more source

Longitudinal Tracking of Astrocyte Reactivity During the Development of Chronic Orofacial Neuropathic Pain Using [18F]‐SMBT‐1 Positron‐Emission Tomography

Glia, Volume 74, Issue 8, August 2026.
Using [18F]‐SMBT‐1 PET, we longitudinally tracked MAO‐B–expressing reactive astrocytes during orofacial neuropathic pain development in rats, revealing region‐ and time‐specific astrocyte activation during pain chronification. ABSTRACT Chronic neuropathic pain represents a significant global health burden and is hypothesized to be maintained by an ...
Lewis S. Crawford, James W. M. Kang, OIivia I. Davanzo, Hyunsol Lim, Sabrina Salberg, Marissa Srgo, Crystal Li, Gaelle M. Emvalomenos, Bianca Jupp, Matthew Long, Wayne Noonan, Mohammad B. Haskali, Richelle Mychasiuk, Kevin A. Keay, Luke A. Henderson   +14 more
wiley   +1 more source