Results 31 to 40 of about 302,537 (306)

A Link between Neutron and Ion Irradiation Hardening for Stainless Austenitic and Ferritic-Martensitic Steels

open access: yesMetals
Radiation hardening is studied for stainless austenitic and ferritic-martensitic chromium steels after ion and neutron irradiation at various temperatures. Austenitic and ferritic-martensitic steels irradiated up to 30 dpa in various nuclear reactors and
Boris Margolin   +2 more
doaj   +1 more source

DNA-PKcs inhibition sensitizes cancer cells to carbon-ion irradiation via telomere capping disruption. [PDF]

open access: yesPLoS ONE, 2013
Heavy-ion irradiation induces a higher frequency of DNA double strand breaks (DSBs) which must be properly repaired. Critical shortening of telomeres can trigger DNA damage responses such as DSBs.
Xin Zhou   +5 more
doaj   +1 more source

Effect of Ga$^{+}$ irradiation on magnetic and magnetotransport properties in (Ga,Mn)As epilayers

open access: yes, 2004
We report on the magnetic and magnetotransport properties of ferromagnetic semiconductor (Ga,Mn)As modified by Ga$^{+}$ ion irradiation using focused ion beam.
Hamaya, K.   +4 more
core   +1 more source

Biological Effect and Molecular Mechanism of Heavy Ion Irradiation on Human Tongue Squamous Cell Carcinoma CAL27 Cells

open access: yesZhongliu Fangzhi Yanjiu, 2018
Objective The biological effect and molecular mechanism of heavy ion 12C6+ ion irradiation on human tongue squamous cell carcinoma CAL27 cells. Methods We applied different doses of heavy ion beam (12C6+) to irradiate in vitro cultured human tongue ...
LIU Yali   +5 more
doaj   +1 more source

The Influence of High-Energy Lithium Ion Irradiation on Electrical Characteristics of Silicon and GaAs Solar Cells

open access: yes, 2006
Space-grade Si and GaAs solar cells were irradiated with 15 & 40 MeV Li ions. Illuminated (AM0 condition) and unilluminated I-V curves reveal that the effect of high-energy Li ion irradiation has produced similar effects to that of proton irradiation ...
Agrawal, Anil   +5 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Study and optimization of ion-irradiated High-Tc Josephson nanoJunctions by Monte Carlo simulations

open access: yes, 2007
High Tc Josephson nanoJunctions (HTc JnJ) made by ion irradiation have remarkable properties for technological applications. However, the spread in their electrical characteristics increases with the ion dose. We present a simple model to explain the JnJ
Bergeal, N.   +7 more
core   +1 more source

Nanomachining Graphene with Ion Irradiation [PDF]

open access: yesMRS Proceedings, 2010
AbstractWe present molecular dynamics simulations using both empirical potentials (EP) and density functional theory (DFT) on ion irradiation of graphene. The comparison between the two methods shows that EP gives not only qualitatively but also quantitatively reasonable estimates of defect production during ion irradiation in carbon nanosystems.
Jani Kotakoski, Ossi Lehtinen
openaire   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Helium bubble formation in ultrafine and nanocrystalline tungsten under different extreme conditions [PDF]

open access: yes, 2015
We have investigated the effects of helium ion irradiation energy and sample temperature on the performance of grain boundaries as helium sinks in ultrafine grained and nanocrystalline tungsten.
A. Hassanein   +48 more
core   +1 more source

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