Results 11 to 20 of about 345,855 (252)

Enhancement of Bio-Protective Functions by Low Dose/Dose-Rate Radiation

open access: yesDose-Response, 2006
Effects of low-dose-rate gamma-irradiation on the process of tumorigenesis were investigated in mice treated with a carcinogenic agent or irradiated with high dose X-rays at a high dose rate.
Kazuo Sakai   +2 more
doaj   +3 more sources

A Monte Carlo Study on Dose Enhancement by Homogeneous and Inhomogeneous Distributions of Gold Nanoparticles in Radiotherapy with Low Energy X-rays [PDF]

open access: yesJournal of Biomedical Physics and Engineering, 2018
Background: To enhance the dose to tumor, the use of high atomic number elements has been proposed. Objective: The aim of this study is to investigate the effect of gold nanoparticle distribution on dose enhancement in tumor when the tumor is ...
M Zabihzadeh   +4 more
doaj   +2 more sources

Fluorescent Gold Nanoparticles in Suspension as an Efficient Theranostic Agent for Highly Radio-Resistant Cancer Cells

open access: yesJournal of Nanotheranostics, 2023
Gold nanoparticles are a promising candidate for developing new strategies of therapy against cancer. Due to their high atomic number and relative biocompatibility, they are commonly investigated as radiosensitizers to locally increase the dose of ...
Sarah Vogel   +11 more
doaj   +1 more source

Biological Dose-Enhancement Analysis With Monte Carlo Simulation for Lipiodol for Photon Beams [PDF]

open access: yesReports of Practical Oncology and Radiotherapy, 2019
Shuichi Ozawa   +2 more
exaly   +2 more sources

Clinical Feasibility Study of Gold Nanoparticles as Theragnostic Agents for Precision Radiotherapy

open access: yesBiomedicines, 2022
Background: Gold nanoparticles (AuNP) may be useful in precision radiotherapy and disease monitoring as theragnostic agents. In diagnostics, they can be detected by computerized tomography (CT) because of their higher atomic number. AuNP may also improve
José Antonio López-Valverde   +2 more
doaj   +1 more source

Gold Nanoparticle DNA Damage by Photon Beam in a Magnetic Field: A Monte Carlo Study

open access: yesNanomaterials, 2021
Ever since the emergence of magnetic resonance (MR)-guided radiotherapy, it is important to investigate the impact of the magnetic field on the dose enhancement in deoxyribonucleic acid (DNA), when gold nanoparticles are used as radiosensitizers during ...
Mehwish Jabeen, James C. L. Chow
doaj   +1 more source

Investigation of the dose enhancement effect of spherical bismuth oxide nanoparticles in external beam radiotherapy [PDF]

open access: yesNanomedicine Research Journal, 2020
Introduction: External radiotherapy is the most common method of radiotherapy which the most important problem associated with is that there is no difference between healthy and tumor tissues in dose absorption.
Zahra Alyani Nezhad   +5 more
doaj   +1 more source

Evaluation of Dosimetric Effect of Bone Scatter on Nanoparticle-Enhanced Orthovoltage Radiotherapy: A Monte Carlo Phantom Study

open access: yesNanomaterials, 2022
In nanoparticle (NP)-enhanced orthovoltage radiotherapy, bone scatter affected dose enhancement at the skin lesion in areas such as the forehead, chest wall, and knee.
Afia Sadiq, James C. L. Chow
doaj   +1 more source

Simulation of dose enhancement in radiotherapy caused by cisplatin [PDF]

open access: yesJournal of Instrumentation, 2020
This research considers potential dose increase in target due to cisplatin (Pt) concentration and radiation type. Cisplatin concentrations from 0.003 to 120 mM were used. Monte-Carlo simulation of Linear accelerator (Elekta Synergy) and X-ray tube (Xstrahl300) was carried out using Geant4 and PClab.
A.A. Baulin, L.G. Sukhikh, E.S. Sukhikh
openaire   +2 more sources

A detailed Monte Carlo evaluation of <sup>192</sup>Ir dose enhancement for gold nanoparticles and comparison with experimentally measured dose enhancements. [PDF]

open access: yesPhys Med Biol, 2020
Abstract Gold nanoparticles (GNPs) have been studied extensively as promising radiation dose enhancing agents. In the current study, the dose enhancement effect of GNPs for Ir-192 HDR brachytherapy is studied using Monte Carlo N-Particle code, version 6.2 (MCNP6.2) and compared with experimental results obtained ...
Gray T   +6 more
europepmc   +4 more sources

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