Results 41 to 50 of about 585,390 (295)

Image contrast assessment of metal-based nanoparticles as applications for image-guided radiation therapy

Physics and Imaging in Radiation Oncology, 2021
Metal-based nanoparticles (NPs) have been extensively studied for dose enhancement applications in radiation therapy. This study investigated the utility of such NPs for image-guided radiation therapy (IGRT).
Masao Nakayama, Hiroaki Akasaka, Eiichi Miyazaki, Yoshihiro Goto, Yuya Oki, Yosuke Kawate, Kenta Morita, Ryohei Sasaki   +7 more
doaj   +1 more source

Analysis of total dose-induced dark current in CMOS image sensors from interface state and trapped charge density measurements [PDF]

, 2010
The origin of total ionizing dose induced dark current in CMOS image sensors is investigated by comparing dark current measurements to interface state density and trapped charge density measurements.
Girard, Sylvain, Goiffon, Vincent, Magnan, Pierre, Paillet, Philippe, Virmontois, Cédric   +4 more
core   +4 more sources

A Monte Carlo Study on Dose Enhancement in the Presence of Nanoparticles by Photon Source: A Comparison between Various Concentration and Material of Nanoparticles

Frontiers in Biomedical Technologies, 2021
Purpose: Recently, the application of high atomic number nanoparticles is suggested in the field of radiotherapy to improve physical dose enhancement and hence treatment efficiency.
Arezoo Kazemzadeh, Habiballah Moradi
doaj   +1 more source

Dose perturbation effect of metallic spinal implants in proton beam therapy [PDF]

, 2015
The purpose of this study was to investigate the effect of dose perturbations for two metallic spinal screw implants in proton beam therapy in the perpendicular and parallel beam geometry.
Cheng, Chee-Wei, Das, Indra J., Jia, Yingcui, McDonald, Mark W., Zhao, Li   +4 more
core   +1 more source

Monte Carlo Simulations in Nanomedicine: Advancing Cancer Imaging and Therapy

Nanomaterials
Monte Carlo (MC) simulations have become important in advancing nanoparticle (NP)-based applications for cancer imaging and therapy. This review explores the critical role of MC simulations in modeling complex biological interactions, optimizing NP ...
James C. L. Chow
doaj   +1 more source

Monte Carlo study of radiation dose enhancement by gadolinium in megavoltage and high dose rate radiotherapy. [PDF]

PLoS ONE, 2014
MRI is often used in tumor localization for radiotherapy treatment planning, with gadolinium (Gd)-containing materials often introduced as a contrast agent. Motexafin gadolinium is a novel radiosensitizer currently being studied in clinical trials.
Daniel G Zhang, Vladimir Feygelman, Eduardo G Moros, Kujtim Latifi, Geoffrey G Zhang   +4 more
doaj   +1 more source

Secondary Electrons in Gold Nanoparticle Clusters and Their Role in Therapeutic Ratio: The Outcome of a Monte Carlo Simulation Study

Molecules, 2022
Gold nanoparticles (GNPs) are used in proton therapy radio-sensitizers to help increase the dose of radiation to targeted tumors by the emission of secondary electrons.
Hanan Akhdar, Reem Alanazi, Nadyah Alanazi, Abdullah Alodhayb   +3 more
doaj   +1 more source

Role of hydrogen in hydrogen-induced layer exfoliation of germanium [PDF]

, 2007
The role of hydrogen in the exfoliation of Ge is studied using cross-sectional transmission electron microscopy, atomic force microscopy, and multiple-internal transmission mode Fourier-transform infrared absorption spectroscopy and compared with the ...
Atwater, Harry A., Chabal, Y. J., Fontcuberta i Morral, A., Griggs, M. J., Zahler, J. M.   +4 more
core   +1 more source

Distribution modeling of nanoparticles for brachytherapy of human eye tumor

EJNMMI Physics, 2020
Background Due to their unique properties, gold nanoparticles (GNPs) have been proposed to be used for a wide range of applications, especially for photon radiation therapy. In addition to experimental works, there are worthwhile simulation-based studies
S. Farhad Masoudi, Fahimeh S. Daryabari, Fatemeh S. Rasouli   +2 more
doaj   +1 more source

BMDExpress 2: enhanced transcriptomic dose-response analysis workflow [PDF]

Bioinformatics, 2018
Abstract Summary A new version (version 2) of the genomic dose-response analysis software, BMDExpress, has been created. The software addresses the increasing use of transcriptomic dose-response data in toxicology, drug design, risk assessment and translational research.
Jason R, Phillips, Daniel L, Svoboda, Arpit, Tandon, Shyam, Patel, Alex, Sedykh, Deepak, Mav, Byron, Kuo, Carole L, Yauk, Longlong, Yang, Russell S, Thomas, Jeff S, Gift, J Allen, Davis, Louis, Olszyk, B Alex, Merrick, Richard S, Paules, Fred, Parham, Trey, Saddler, Ruchir R, Shah, Scott S, Auerbach   +18 more
openaire   +2 more sources