Results 41 to 50 of about 32,744 (246)

All‐Flex Plasma Patch for In Vivo Delivery of Reactive Species

Advanced Science, EarlyView.
A fully flexible plasma patch enables stable, conformal treatment on complex biological surfaces and enhances transdermal delivery of reactive species. This platform achieves significant tumor suppression in vivo and reveals coordinated regulation of calcium signaling, metabolism, and programmed cell death, providing a promising strategy for safe and ...
Luxiang Zhao, Abulaihaiti Tuergong, Hanshu Yang, Shuang Xue, An Yan, Mingzhen Wang, Weilong Song, Wenzhe Si, Ruixue Wang   +8 more
wiley   +1 more source

Natural radionuclide and 137Cs activity concentration in soils of the Brazilian State of Sergipe and their correlation with environmental characteristics

Brazilian Journal of Radiation Sciences
Radionuclides occur naturally in the environment, exposing living organisms to ionizing radiation. In addition, human activities have introduced artificial radionuclides such as 137Cs, among others, into the environment.
Luiz Cavalcante Ferreira, Amanda Alves da Silva, Fernando Carlos Araujo Ribeiro, Wanderson de Oliveira Sousa, Wagner Chaves Costa, Sueli Alexandra de Mesquista, Eduardo Paim Viglio   +6 more
doaj   +1 more source

Ultra‐Radiostable Covalent Conformationally Interlocked Networks Enabling a Universal Radiometal‐Labeling Platform for Cancer Radioembolization

Advanced Science, EarlyView.
Conjugated poly(imide dioxime)‐based microspheres establish a radiometal coordination‐driven conformational interlocked network with ultra‐high radiostability. This platform enables low‐temperature, multi‐radionuclide labeling for SPECT/PET/MRI imaging and radionuclide therapy. Mechanistic insights from EXAFS and DFT reveal enhanced stability, while in
Xiao Xu, Zhenwen Zhao, Yangjie Wang, Zhigang Liu, Zhijie Liu, Xiaoling Li, Zhichen Mao, Lu Xu, Gan Lin, Gang Liu, Hongjuan Ma   +10 more
wiley   +1 more source

A simple method to back-project isocenter dose of radiotherapy treatments using EPID transit dosimetry

Brazilian Journal of Radiation Sciences, 2017
The aim of this work was to implement a simple algorithm to evaluate isocenter dose in a phantom using the back-projected transmitted dose acquired using an Electronic Portal Imaging Device (EPID) available in a Varian Trilogy accelerator with two ...
Thiago Bernardino da Silveira, Bianca de Quadros Cerbaro, Luiz Antônio Ribeiro da Rosa   +2 more
doaj   +1 more source

Characterization of the collimated output fluence , in a thermal neutron field, in terms of ambient equivalent dose H*(10,0)

Brazilian Journal of Radiation Sciences, 2022
The Brazilian Neutron Laboratory at the Institute of Radioprotection and Dosimetry (IRD) developed and built a new standard facility for thermal neutron flux, seeking to provide a new homogeneous fluence to calibrate neutron detectors and personal ...
Larissa Paizante Santos da Silva, Simone Silva Fernandes, Walsan Wagner de Souza, Karla Cristina de Souza Patrão   +3 more
doaj   +1 more source

Radiation Dosimetry by Means of Semiconductors [PDF]

Acta Radiologica, 1962
Different commercial diodes were used as dosimeters. It is shown that the shortcircuit current is a simple function of the dose rate, and that it is independent of the quality of the radiation in the region 0.5 to 2.5 mm Cu HVL. (auth)
T, GULDBRANDSEN, C B, MADSEN
openaire   +2 more sources

Kaempferol Attenuates Spaceflight‐Associated Knee Cartilage Degradation by Targeting NOX4‐Mediated Mitochondrial Dysfunction

Advanced Science, EarlyView.
We have shown that both simulated and actual spaceflight contribute to cartilage degradation in the knees of mice. Using RNA sequencing and bioenergetic profiling, we identified NADPH oxidase 4 (NOX4) as a key factor driving these changes. Additionally, we found that kaempferol, a naturally occurring flavonoid that binds directly to NOX4, reduces ...
Yuesong Yin, Ruiling Xu, Meagan J. Makarczyk, Jia‐Jun Liu, Silvia Liu, Matthew Z. Shi, Roberta Di Carlo, Michael F. Almeida, Alex Garris, Sarah Day, Rebekah Sanchez‐Hodge, Jonathan C. Schisler, Aleeza H. Zilberman, Noah G. Allen, Angela J. Kubik, Elizabeth A. Blaber, Arnold Z. Olali, Wanqing Xie, Douglas C. Wallace, Christopher E. Mason, Peter G. Alexander, Giuseppe Intini, Afshin Beheshti, Hang Lin   +23 more
wiley   +1 more source

Multispectral UV Imaging on Capacitive CMOS Arrays Enabled by Solution‐Processed Metal‐Oxide Nanoparticles

Advanced Science, EarlyView.
Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu, Tao Shen, Kai Betlem, Murali K. Ghatkesar, Peter G. Steeneken, Frans P. Widdershoven   +5 more
wiley   +1 more source

Paediatric development of radiopharmaceutical imaging agents and radioligand therapeutics

British Journal of Clinical Pharmacology, EarlyView.
Abstract This review focuses on the development of radiopharmaceutical imaging agents and radioligand therapeutics for paediatric use. Nuclear medicine plays an important role in the diagnosis and treatment of various childhood conditions, including cancers, infections and brain disorders.
Justin L. Hay, Amandine Manon, Hunter Stephens, S. Y. Amy Cheung, Bart de Keizer, Erik T. te Beek   +5 more
wiley   +1 more source

Remote beam output audits: A global assessment of results out of tolerance

Physics and Imaging in Radiation Oncology, 2018
Background and purpose: Remote beam output audits, which independently measure an institution’s machine calibration, are a common component of independent radiotherapy peer review.
Stephen F. Kry, Christine B. Peterson, Rebecca M. Howell, Joanna Izewska, Jessica Lye, Catharine H. Clark, Mitsuhiro Nakamura, Coen Hurkmans, Paola Alvarez, Andrew Alves, Tomislav Bokulic, David Followill, Pavel Kazantsev, Jessica Lowenstein, Andrea Molineu, Jacob Palmer, Susan A. Smith, Paige Taylor, Paulina Wesolowska, Ivan Williams   +19 more
doaj   +1 more source