Concept

Irradiation

Publications associées (127)

Enhancement of cell radiation sensitivity by pegylated gold nanoparticles

Biocompatible Au nanoparticles with surfaces modified by PEG (polyethylene glycol) were developed in view of possible applications for the enhancement of radiotherapy. Such nanoparticles exhibit preferential deposition at tumor sites due to the enhanced pe ...

Institute of Physics2010

Monitoring tumor response to radiation therapy with longitudinal and multimodal molecular imaging

Jessica Perez

Purpose: Metabolic changes induced by radiation therapy (RT) provide a biological measure of tumor response to treatment beyond anatomic changes. In this preclinical study we investigated these changes through longitudinal monitoring of tumor response to v ...

2010

Ion irradiation enhances the mechanical performance of metallic glasses

Johann Michler, Manuel Alexandre Pouchon

We demonstrate that irradiation may enhance the plasticity in metallic glasses by increasing the free-volume content via micropillar compression experiments on an ion-irradiated bulk metallic glass (BMG). Results show that irradiation decreases the flow st ...

Elsevier2010

Reinforcing multiwall carbon nanotubes by electron beam irradiation

László Forró, Arnaud Magrez, Marijana Mionic Ebersold, Jin Won Seo, Martial Duchamp, Rita Smajda, Bo Song, Richard Meunier

We study the effect of electron beam irradiation on the bending modulus of multiwall carbon nanotubes grown by chemical vapor deposition. Atomic force microscopy observations of the nanotube deflection in the suspended-beam geometry suggest an internal, re ...

2010

Assessment of irradiation embrittlement of the Eurofer97 steel after 590 MeV proton irradiation

Philippe Spätig, Pablo Federico Mueller

The irradiation hardening of the Eurofer97 steel following 590 MeV proton irradiations was determined at three different irradiation temperatures, 50 °C, 250 °C and 350 °C, and various doses up to about 1.3 displacement per atom. The dose and temperature d ...

Elsevier2009

Material degradation under DEMO relevant neutron fluences

Nadine Baluc

In fusion power reactors, the plasma facing and breeding-blanket components will suffer intense irradiation by 14MeV neutrons. These high-energy fusion neutrons will produce atomic displacement cascades and nuclear transmutation reactions inside the irradi ...

2009

Enhanced photocatalysis, colloidal stability and cytotoxicity of synchrotron X-ray synthesized Au/TiO2 nanoparticles

Giorgio Margaritondo

Au/TiO2 nanocomposite particles were synthesized by a method based on intense X-ray irradiation without adding any reducing agent or stabilizer. The nanocomposite exhibits promising photocatalytic and biological properties at physiologically relevant conce ...

Elsevier2009

Intense X-ray induced formation of silver nanoparticles stabilized by biocompatible polymers

Giorgio Margaritondo

Colloidal Ag nanoparticles were formed by X-ray irradiation in the presence of a polymer. This new synthesis method is simple, rapid and leads to a high production yield. Compared to the citrate-reduced Ag colloidal, polymer-protected Ag nanoparticles are ...

2009

Enhanced x-ray irradiation-induced cancer cell damage by gold nanoparticles treated by a new synthesis method of polyethylene glycol modification

Giorgio Margaritondo

We explored a very interesting gold nanoparticle system-pegylated gold in colloidal solution-and analyzed its uptake by mice colorectal adenocarcinoma CT26 tumor cells and the impact on the cell's response to x-ray irradiation. We found that exposure to po ...

Institute of Physics2008

Analysis of nano-sized irradiation-induced defects in Fe-base materials by means of small angle neutron scattering and molecular dynamics simulations

Gang Yu

Thermonuclear fusion of light atoms is considered since decades as an unlimited, safe and reliable source of energy that could eventually replace classical sources based on fossile fuel or nuclear fuel. Fusion reactor technology and materials studies are i ...

EPFL2008

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