Results 71 to 80 of about 10,474 (272)

Swift heavy ion irradiation of thymine at cryogenic temperature

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2023
Thymine (C$_5$H$_6$N$_2$O$_2$) is a basic N-heterocyclic nucleobase in all known organisms, and this molecule is also found in meteoritic materials. This study aims to investigate thymine's physical and chemical modifications under ion irradiation in cryogenic conditions.
Mejía, C., Muniz, G.S. Vignoli, Bender, M., Severin, D., Trautmann, C., Augé, B., Agnihotri, A.N., Boduch, P., Domaracka, Alicja, Rothard, H.   +9 more
openaire   +2 more sources

Modeling swift heavy ion irradiation of substrate-supported two-dimensional material via two-temperature molecular dynamics simulations

AIP Advances
This study employs two-temperature molecular dynamics simulations to investigate swift heavy ion irradiation of SiO2 substrate-supported two-dimensional material graphene.
Tan Shi, Xiqiang Xu, Hao Wan, Pei Jia, Ping Zhang, Huan He, Rui Gao, Chenyang Lu   +7 more
doaj   +1 more source

Observation of exchange bias in nanoscale AuFe alloy film

Materials Research Express, 2020
We report on observation of the exchange bias effect in AuFe co-sputtered alloy films in the as-deposited state and following swift heavy ion irradiation. The Mössbauer spectrum for the as-deposited film shows a broad paramagnetic doublet together with a
Compesh Pannu, Santanu Ghosh, Pankaj Srivastava, K Bharuth-Ram, V R Reddy, Ajay Gupta, Debdulal Kabiraj, D K Avasthi   +7 more
doaj   +1 more source

Potential energy threshold for nano-hillock formation by impact of slow highly charged ions on a CaF$_2$(111) surface

, 2006
We investigate the formation of nano-sized hillocks on the (111) surface of CaF$_2$ single crystals by impact of slow highly charged ions. Atomic force microscopy reveals a surprisingly sharp and well-defined threshold of potential energy carried into ...
A.S. El-Said, Albert, Arnau, Barany, Bhalla, Boccanfuso, Boccanfuso, Burgdörfer, C. Lemell, C. Trautmann, Castro, Chadderton, Crespo López-Urrutia, Dammak, El-Said, F. Aumayr, Facsko, Fleischer, Grochtmann, HP. Winter, Hägg, I.C. Gebeshuber, J. Burgdörfer, J. Ullrich, J.R. Crespo López-Urrutia, Kentsch, Khalfaoui, Lucas, M. Toulemonde, M.C. Simon, Manika, Meftah, Meissl, Müller, Schenkel, Schowalter, Schwartz, Smith, Toulemonde, Trautmann, Trautmann, Trautmann, W. Meissl, Wirtz, Ziberi, Ziegler   +45 more
core   +2 more sources

Toward Predictable Nanomedicine: Current Forecasting Frameworks for Nanoparticle–Biology Interactions

Advanced Intelligent Discovery, EarlyView.
Predictive models successfully screen nanoparticles for toxicity and cellular uptake. Yet, complex biological dynamics and sparse, nonstandardized data limit their accuracy. The field urgently needs integrated artificial intelligence/machine learning, systems biology, and open‐access data protocols to bridge the gap between materials science and safe ...
Mariya L. Ivanova, Michael Nicholls, Nicola Russo, Gueorgui Mihaylov, Konstantin Nikolic   +4 more
wiley   +1 more source

Ionoluminescence and photoluminescence in swift heavy ion-irradiated Al2SiO5 [PDF]

Radiation Measurements, 2003
Abstract Ionoluminescence (IL) and photoluminescence (PL) of aluminum silicates irradiated with 100 MeV swift Ni+8 ions with fluences in the range 7.5×1010– 1.0×10 14 ions / cm 2 have been studied. A pair of IL bands with peaks at ∼775 and 875 nm are recorded in both natural crystalline and pelletized kyanite ...
Nagabhushana, H., Lakshminarasappa, B.N., Singh, F., Avasthi, D.K.   +3 more
openaire   +2 more sources

Swift heavy ion irradiation puts InGaN/GaN multi-quantum wells on the track for efficient green light emission

Nano Trends
InN and InGaN/GaN multi-quantum wells (MQWs) were subjected to Swift Heavy Ion (SHI) irradiation. Ion track formation was studied using transmission electron microscopy in both plane view and cross-sectional modes.
M. Sall, G. Sow, A. Baillard, A. Dujarrier, L. Goodwin, J.G. Mattei, M. Sequeira, M. Peres, P. Loiko, Y. Doublet, M.P. Chauvat, C.A.P. da Costa, P. Boduch, H. Rothard, A. Braud, B. Damilano, K. Lorenz, C. Grygiel, E. Balanzat, I. Monnet   +19 more
doaj   +1 more source

Energy dependent saturation width of swift heavy ion shaped embedded Au nanoparticles

, 2016
The transformation of Aunanoparticles (NPs) embedded in SiO₂ from spherical to rod-like shapes induced by swift heavy ion irradiation has been studied. Irradiation was performed with ¹⁹⁷Au ions at energies between 54 and 185 MeV.
Byrne, A. P., Cookson, D. J., Giulian, R., Kluth, P., Ridgway, M. C., Schnohr, C. S., Sprouster, D. J.   +6 more
core   +1 more source

Design, Control, and Clinical Applications of Magnetic Actuation Systems: Challenges and Opportunities

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This review aims to provide a broad understanding for interdisciplinary researchers in engineering and clinical applications. It addresses the development and control of magnetic actuation systems (MASs) in clinical surgeries and their revolutionary effects in multiple clinical applications.
Yingxin Huo, Lidong Yang, Tiantian Xu, Dong Sun   +3 more
wiley   +1 more source

Dislocation loop formation by swift heavy ion irradiation of metals

Journal of Physics: Condensed Matter, 2017
A coupled two-temperature, molecular dynamics methodology is used to simulate the structural evolution of bcc metals (Fe and W) and fcc metals (Cu and Ni) following irradiation by swift heavy ions. Electronic temperature dependent electronic specific heat capacities and electron-phonon coupling strengths are used to capture the full effects of the ...
Khara, Galvin S., Murphy, Samuel T., Duffy, Dorothy M.   +2 more
openaire   +3 more sources