Structural characteristics and bonding environment of Ag nanoparticles synthesized by gamma irradiation within thermo-responsive poly(N -isopropylacrylamide) hydrogel

2015 ◽  
Vol 38 (5) ◽  
pp. 1014-1026 ◽  
Author(s):  
Jelena Spasojević ◽  
Aleksandra Radosavljević ◽  
Jelena Krstić ◽  
Miodrag Mitrić ◽  
Maja Popović ◽  
...  
Keyword(s):  
Gamma Irradiation ◽  
Ag Nanoparticles ◽  
Structural Characteristics

Gamma-irradiation induced direct fabrication of SERS-active Ag nanoparticles on glass substrates

RSC Advances ◽  
2014 ◽  
Vol 4 (39) ◽  
pp. 20247-20251 ◽  
Author(s):  
Hongtao Zhao ◽  
Zhigang Li ◽  
Nan Zhang ◽  
Siwei Li ◽  
Lu Xiong ◽  
...  
Keyword(s):  
Gamma Irradiation ◽  
Ag Nanoparticles ◽  
Reduction Technique ◽  
Glass Substrates ◽  
Direct Fabrication

SERS-active Ag nanoparticles are directly fabricated on glass substrates through a gamma-irradiation induced reduction technique.

Gamma-irradiation assisted seeded growth of Ag nanoparticles within PVA matrix

2011 ◽  
Vol 128 (1-2) ◽  
pp. 109-113 ◽  
Author(s):  
Wael H. Eisa ◽  
Yasser K. Abdel-Moneam ◽  
Yasser Shaaban ◽  
Atef A. Abdel-Fattah ◽  
Amira M. Abou Zeid
Keyword(s):  
Gamma Irradiation ◽  
Ag Nanoparticles ◽  
Seeded Growth

scholarly journals Prediction of Europium Retention in Perovskite: Potential Candidates for an Engineering Barrier in the Disposal of Radioactive Waste

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Huemantzin B. Ortiz-Oliveros ◽  
Rosa Ma. Flores Espinosa ◽  
Pedro Ávila-Pérez ◽  
Daniel Cruz-Gonzalez ◽  
Noureddine Ouerfelli
Keyword(s):  
Radioactive Waste ◽  
Gamma Irradiation ◽  
Physical Parameter ◽  
Structural Characteristics ◽  
Dipole Interaction ◽  
Maximum Activity ◽  
Surface Complexes ◽  
Optimal Value ◽  
Crystalline Metal ◽  
Spontaneous Reaction

Perovskites, such as tausonite, are crystalline metal oxides with excellent optical and photocatalytic properties and have also been used successfully in the retention of metals, simulating the isotopes of uranium and plutonium. In this work, different pseudo-order and thermodynamic models were studied to achieve the prediction of the sorption of Eu3+ (chemical analogous for actinides) in tausonite. The effects of gamma irradiation and temperature on the structural characteristics of the material were determined, as an additional step in the evaluation of material as an engineering barrier in the disposal of radioactive waste. The results obtained show that the tausonite is resistant to the gamma irradiation and thermal energy. Likewise, it was possible to determine that europium sorption occurs through an exothermic and spontaneous reaction, as well as through the formation of surface complexes, where Eu3+ ions bind to sites on the tausonite by dipole-dipole interaction. Furthermore, it was shown that the sorption mechanism is influenced by diffusive phenomena, which participate in the formation of surface complexes. Additionally, a new sorption model with respect to pH was proposed, which allowed determining the physical parameter π. The evidence obtained suggests that π is a physical parameter that relates pH to an optimal value and could explain the equilibrium between the surface complexes that tausonite forms with europium. Likewise, the evidence suggests that 50 kg of tausonite would have the capacity to retain at least 26.59 g of alpha-emitting radionuclides, equivalent to a waste package (900 kg) with a maximum activity of 4000 Bq/g.

Changes in structural characteristics of LLDPE functionalized with DEM using gamma-irradiation

2011 ◽  
Vol 124 (2) ◽  
pp. 1106-1116 ◽  
Author(s):  
R. Perera ◽  
C. Albano ◽  
Y. Sánchez ◽  
A. Karam ◽  
P. Silva ◽  
...  
Keyword(s):  
Gamma Irradiation ◽  
Structural Characteristics

Effect of gamma irradiation on synthesis and characterization of bio-nanocomposite SF/Ag nanoparticles

2017 ◽  
Vol 172 (11-12) ◽  
pp. 915-921 ◽  
Author(s):  
R. Madhukumar ◽  
K. Byrappa ◽  
Youjiang Wang ◽  
Y. Sangappa
Keyword(s):  
Gamma Irradiation ◽  
Ag Nanoparticles ◽  
Synthesis And Characterization

Effect of gamma-irradiation on some structural characteristics of NiO

1989 ◽  
Vol 33 (1) ◽  
pp. 19-22
Author(s):  
A.M. El-Shabiny ◽  
G.A. El-Shobaky ◽  
A.M. Dessouki ◽  
A.A. Ramadan
Keyword(s):  
Gamma Irradiation ◽  
Structural Characteristics

scholarly journals Preparation of Ag nanoparticles via pulsed laser ablation in liquid for biological applications

2019 ◽  
Vol 15 (34) ◽  
pp. 162-170
Author(s):  
Ammar M. Noori
Keyword(s):  
Laser Ablation ◽  
Nd:Yag Laser ◽  
Ag Nanoparticles ◽  
Structural Characteristics ◽  
Pulsed Laser ◽  
Pulsed Laser Ablation ◽  
Distilled Water ◽  
Biological Applications ◽  
Laser Ablation In Liquid ◽  
Preparation Conditions

Ag nanoparticles were prepared using Nd:YAG laser from Ag matel in distilled water using different energies laser (100 and 600) mJ using 200 pulses, and study the effect of the preparation conditions on the structural characteristics of and then study the effect of nanoparticles on the rate of killing the two types of bacteria particles (Staph and E.coli). The goal is to prepare the nanoparticle effectively used to kill bacteria.

Effects of the combination of gamma irradiation and Ag nanoparticles polyethylene films on the quality of fresh bottom mushroom (Agaricus bisporus L.)

2018 ◽  
Vol 42 (7) ◽  
pp. e13652 ◽  
Author(s):  
Mahdi Ghasemi-Varnamkhasti ◽  
Ayat Mohammad-Razdari ◽  
Seyedeh Hoda Yoosefian ◽  
Zahra Izadi
Keyword(s):  
Gamma Irradiation ◽  
Ag Nanoparticles ◽  
Agaricus Bisporus ◽  
Polyethylene Films

A High Resolution Study of G.P. Zones in Aluminum - 4.2 at % Silver

1982 ◽  
Vol 40 ◽  
pp. 722-723 ◽  
Author(s):  
R. Gronsky
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
High Resolution ◽  
Computer Simulations ◽  
Structural Characteristics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron ◽  
Resolution Study

The phenomenon of clustering in Al-Ag alloys has been extensively studied since the early work of Guinierl, wherein the pre-precipitation state was characterized as an assembly of spherical, ordered, silver-rich G.P. zones. Subsequent x-ray and TEM investigations yielded results in general agreement with this model. However, serious discrepancies were later revealed by the detailed x-ray diffraction - based computer simulations of Gragg and Cohen, i.e., the silver-rich clusters were instead octahedral in shape and fully disordered, atleast below 170°C. The object of the present investigation is to examine directly the structural characteristics of G.P. zones in Al-Ag by high resolution transmission electron microscopy.

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