Article
Nanoscience & Nanotechnology
Jie-Wen Zhang, Si-Mian Liu, Wei-Zhong Han
Summary: Interface engineering is an effective method to reduce the accumulation of irradiation defects in metals, as observed in nanolayered Zr-2.5Nb where the α/β-Zr duplex-phase interfaces remain stable even under high temperature irradiation conditions, resulting in a decreased formation of dislocation loops.
SCRIPTA MATERIALIA
(2021)
Article
Chemistry, Physical
Jelena Krstic, Aleksandra Radosavljevic, Jelena Spasojevic, Nikolina Nikolic, Uros Jovanovic, Nadica Abazovic, Zorica Kacarevic-Popovic
Summary: Hydrogels consisting of radiation-degraded chitosan, poly(vinyl alcohol), and Ag nano-filler were synthesized using two-stage and single-stage procedures. The study found that hydrogels synthesized using the single-stage procedure exhibited stronger antibacterial activity, possibly due to the higher mobility of radiation-modified chitosan in the network.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Environmental Sciences
S. Sivaselvam, R. Selvakumar, C. Viswanathan, N. Ponpandian
Summary: A cost-effective, high potential, and recyclable catalyst named PAM-GO-Ag hydrogel is prepared using gamma-ray irradiation. This hydrogel exhibits excellent catalytic and antibacterial activity, making it promising for large-scale applications with good reusability.
Article
Polymer Science
Roko Blazic, Dajana Kucic Grgic, Marijana Kraljic Rokovic, Elvira Vidovic
Summary: In this study, hydrogels with different ratios of PDMAEMA were grafted onto cellulose using free radical polymerization method and gamma-ray radiation. The results showed that gamma irradiation increased the PDMAEMA content in hydrogels and the synthesized hydrogels had good swelling properties, weak antibacterial activity, and characteristics suitable for supercapacitor applications.
Article
Polymer Science
Peerapat Thongnuek, Sorada Kanokpanont, Pimpon Uttayarat, Siriporn Damrongsakkul
Summary: Gamma irradiation was used to induce the hydrogelation of silk fibroin, and the characteristics of the irradiation-induced hydrogels were investigated. The irradiation-induced hydrogels exhibited better thermal stability and contained more random coil structures and fewer beta-sheet structures. This finding suggests that the gelation mechanism induced by gamma irradiation may differ from the established mechanism. The study also demonstrates that gamma irradiation can be used as an alternative method to produce chemical-free, random coil-rich, and sterilized silk fibroin hydrogels for biomedical applications.
Article
Polymer Science
Jungin Kim, Inwook Oh, Sooji Park, Ngoc Quang Nguyen, Jungju Ryu, Daewon Sohn
Summary: In this study, self-healable laponite-poly(N-isopropylacrylamide) hydrogels were prepared using gamma-ray radiation through stepwise processes. The main factor affecting the properties was found to be the homogeneous distribution of laponite particles. Comparisons of samples prepared using various synthetic strategies indicated that the radiation method can provide better properties.
Review
Polymer Science
Aarti P. More, Shubham Chapekar
Summary: Hydrogels, crosslinked hydrophilic systems, can be synthesized using various routes, including radiation technology such as gamma, electron beam, and microwave. The optimization of radiation dosage is crucial for achieving desired properties of hydrogels.
Article
Physics, Applied
Keito Aoshima, Masahiro Horita, Jun Suda, Tamotsu Hashizume
Summary: Gamma-ray irradiation was applied to atomic layer deposited Al2O3/GaN metal-oxide-semiconductor (MOS) diodes with and without post-metallization annealing (PMA). The negative flat-band voltage shifts were observed, depending on the Al2O3 thickness, showing different distributions of gamma-ray-induced positive charges for samples with and without PMA. The interface state density slightly increased after irradiation for the PMA sample, but remained lower than that of the sample without PMA before irradiation.
APPLIED PHYSICS EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
Xu Liu, Xiao-Rong Sun, Chen Luo, Hong-Zhi Ma, Hua Yu, Yan Shao, Ming-Bo Yang, Bo Yin
Summary: This work presents a feasible and cost-effective solution for the preparation of environmentally friendly and sustainable TENGs by utilizing micron-sized core-shell Ag@SiO2 particles to increase effective contact area and dielectric properties. The TENGs achieved high output power density and stable flexibility, providing a novel approach for their application in wearable-flexible electronic devices. The water solubility of PEO material allowed for sustainable utilization of TENGs with significant output performance retention.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Engineering, Mechanical
Yang Chen, Shuo Wang, Hui Feng, Weipeng Li, Bin Liu, Jia Li, Yong Liu, Peter K. Liaw, Qihong Fang
Summary: By conducting high-resolution transmission electron microscopy and random field theory informed discrete dislocation dynamics simulations, this study reveals the influence mechanism of heterogeneous lattice strain on the complex interaction between dislocations and dislocation loops in high entropy alloys (HEAs) under irradiation. The results show that lattice-strain-induced irradiation hardening decreases, in line with the excellent irradiation hardening resistance of HEAs observed in recent experiments. A new cross-slip mechanism is also discovered, involving the co-linear reaction between dislocations and rhombus perfect loops. This study provides insights into the mesoscopic-level irradiation damage behavior, guiding the development of advanced HEA materials for nuclear energy applications through the regulation of heterogeneous lattice strain.
INTERNATIONAL JOURNAL OF PLASTICITY
(2023)
Article
Chemistry, Physical
Zhanfeng Liu, Tongrui Li, Wen Zhu, Hongwei Shou, Mukhtar Lawan Adam, Qilong Cui, Yuliang Li, Sheng Wang, Yunbo Wu, Hongen Zhu, Yi Liu, Shuangming Chen, Xiaojun Wu, Shengtao Cui, Li Song, Zhe Sun
Summary: Charge density wave (CDW) is a phenomenon that occurs in materials, accompanied by changes in their intrinsic electronic properties. The study of CDW and its modulation in materials holds tremendous significance in materials research, as it provides a unique approach to controlling the electronic properties of materials. Through V substitution for Ti in TiSe2, we tuned the carrier concentration in VxTi1-xSe2 to study how its electronic structures evolve. ARPES shows that the band-folding effect is sustained with the doping level up to 10%, indicating the persistence of the CDW phase, even though the band structure is strikingly different from that of the parent compound TiSe2. Our work provides a constraint for understanding the CDW mechanism in TiSe2, and highlights the role of lattice distortion in the band-folding effect.
Article
Polymer Science
Yerin Shin, Jongseon Choi, Jun-Hee Na, So Yeon Kim
Summary: The study successfully synthesized temperature-responsive hydrogel soft actuators with a bilayer structure using gamma ray radiation, allowing for controllable temperature and shape transformation. This new strategy provides potential applications in biomimetic robotics, medical devices, and other fields.
Article
Chemistry, Physical
M. Mostafaei, S. M. Abbasi, M. A. Mostafaei
Summary: This study aimed to improve the growth model and coarsening kinetics of gamma' precipitates in Ni-based superalloys with a high volume fraction of gamma' precipitates and large lattice misfit. The research found that there is a range for the coarsening exponent (n) in the high volume fraction condition, and the minimum coarsening rate occurs at a Ta/W ratio of about 0.5 under long-term aging at 1000 degrees C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Qi Wang, Pengfei Kong, Wujun Shi, Cuiying Pei, Chenhaoping Wen, Lingling Gao, Yi Zhao, Qiangwei Yin, Yueshen Wu, Gang Li, Hechang Lei, Jun Li, Yulin Chen, Shichao Yan, Yanpeng Qi
Summary: The research on CsV3Sb5 single crystals revealed a competition between CDW and superconductivity under various pressures, with pressure significantly enhancing the superconducting transition temperature and decreasing the CDW state. The results demonstrate that CsV3Sb5 provides a new platform for exploring the interplay between superconductivity and CDW in topological kagome metals.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Wu Gong, Stefanus Harjo, Yo Tomota, Satoshi Morooka, Takuro Kawasaki, Akinobu Shibata, Nobuhiro Tsuji
Summary: The martensitic transformation is accompanied by the generation of internal stresses at both microscale and macroscale during cooling. Previous studies using X-ray or neutron diffraction have reported inconsistent results due to the influence of factors such as solute elements and crystal defects on the measured lattice parameter.
Article
Chemistry, Applied
M. Krstic, Z. Rogic Miladinovic, T. Barudzija, A. Mladenovic, E. Suljovrujic
Summary: Di(meth)acrylate (D(M)A) systems with pendant oligo(ethylene glycol) (OEG) chains are promising biomedical candidates. By copolymerization with 2-hydroxyethyl methacrylate (HEMA), volume phase transition (VPT) can be shifted closer to physiological temperatures, thus widening the application of these thermoresponsive materials for biomedical purposes.
REACTIVE & FUNCTIONAL POLYMERS
(2022)
Article
Chemistry, Physical
Lazar Rakocevic, Ivana Stojkovic Simatovic, Aleksandar Maksic, Vladimir Rajic, Svetlana Strbac, Irina Srejic
Summary: PtAu/rGO nanoparticles deposited on graphene support demonstrated remarkable catalytic activity for hydrogen evolution reaction in sulfuric acid solution, with good stability and durability.
Article
Materials Science, Textiles
Ana Krkobabic, Darka Markovic, Aleksandar Kovacevic, Vanja Tadic, Marija Radoicic, Tatjana Barudzija, Tatjana Ilic-Tomic, Maja Radetic
Summary: The aim of this study was to develop antimicrobial nanocomposite textile material using bearberry leaves extract as a green reducing agent to synthesize copper-based nanostructures on oxidized cotton fabric, which showed excellent antibacterial activity.
FIBERS AND POLYMERS
(2022)
Article
Nanoscience & Nanotechnology
J. Potocnik, N. Bozinovic, M. Novakovic, T. Barudzija, M. Nenadovic, M. Popovic
Summary: This study investigates the impact of thickness on the structural and optical properties of copper helical nanostructures. It was found that the deposited structures are porous with nanometer-sized crystallites oriented along (111) planes, and the diameter of the helices increases with thickness. Optical analysis revealed that the dielectric function of copper structures is greatly influenced by film thickness, with the surface plasmon resonance peak shifting as the thickness increases.
Article
Chemistry, Physical
Jelena Krstic, Aleksandra Radosavljevic, Jelena Spasojevic, Nikolina Nikolic, Uros Jovanovic, Nadica Abazovic, Zorica Kacarevic-Popovic
Summary: Hydrogels consisting of radiation-degraded chitosan, poly(vinyl alcohol), and Ag nano-filler were synthesized using two-stage and single-stage procedures. The study found that hydrogels synthesized using the single-stage procedure exhibited stronger antibacterial activity, possibly due to the higher mobility of radiation-modified chitosan in the network.
RADIATION PHYSICS AND CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Vesna S. Cvetkovic, Dominic Feldhaus, Natasa M. Vukicevic, Ksenija Milicevic-Neumann, Tanja S. Barudzija, Bernd Friedrich, Jovan N. Jovicevic
Summary: This study investigated the impact of rare earth oxide (REO) concentration on the deposition process and selective recovery of the metal being deposited in a molten fluoride salt system. By constructing a phase diagram and using different deposition techniques, co-deposition of neodymium and praseodymium was achieved, leading to higher co-deposition rates and a more effective deposition process.
Article
Materials Science, Multidisciplinary
Dijana Masojevic, Una Stamenovic, Mojca Otonicar, Sladana Davidovic, Sreco Skapin, Tanja Barudzijaa, Vesna Vodnik
Summary: This study presents a novel antibacterial agent based on the combination of copper nanoparticles (CuNPs) and poly-pyrrole (PPy). The Cu/PPy nanocomposite, characterized by spherical CuNPs around 25 nm in diameter uniformly dispersed throughout a granular PPy matrix, was synthesized using a straightforward in situ polymerization method in water. The antibacterial activity of Cu/PPy against E. coli and S. aureus was determined, demonstrating the synergistic engagement of CuNPs and PPy. Low concentrations of Cu/PPy, such as 2 ppm with 9.45 wt% Cu content, showed significant antibacterial efficacy, indicating its potential as a safe and environmentally acceptable antibacterial agent.
Article
Materials Science, Ceramics
Tijana Stamenkovic, Ivana Dinic, Marina Vukovic, Nadezda Radmilovic, Tanja Barudzija, Milos Tomic, Lidija Mancic, Vesna Lojpur
Summary: In this study, strontium-gadolinium-oxide (SrGd2O4) samples doped with different Yb3+ concentrations and co-doped with Bi3+ were prepared. The inclusion of Bi3+ improved the photoluminescent properties, but decreased the photocatalytic efficiency of the samples.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
A. Khallouqi, A. Halimi, O. El Rhazouani
Summary: A pediatric head phantom made of epoxy resin was used to evaluate radiation exposure in CT scans. The phantom demonstrated dosimetric properties comparable to commercially available phantoms, making it a practical and economical option for assessing radiation dose in children.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. Y. Shoeib, Doaa A. Ahmed, A. F. Abd-Elraheem
Summary: The research aims to measure and analyze the levels of radon concentration, radium concentration, and radon exhalation rates in geopolymer cement mixes, and assess their impact on indoor air quality. Results indicate that geopolymer cement materials are safe for use in construction, except for specific mixes.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
M. J. Leotlela
Summary: This article presents the results of radiochemical events/processes that occur when water is exposed to ionising radiation of charged particles (beta and alpha-particles). The idea of cogeneration becomes even more lucrative if we consider that hydrogen energy generation is clean (also known as green energy) because of its insignificant contribution to environmental pollution. These results supplement the fluctuation in effective dose theory/hypothesis of a previous study on time-dependent variations in the radiological health impact of an interim SNFS facility presented in 2021 (Leotlela, 2021).
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Vyacheslav Ivanovich Pavlenko, Roman Vladimirovich Sidelnikov, Vitaly Valerievich Kashibadze, Mikhail Igorevich Dobynde, Dmitry Alexandrovich Kartashov, Vyacheslav Alexandrovich Shurshakov
Summary: This work explores the possibility of using a polymer composite to protect against neutron radiation in space conditions. The study shows that the proposed polymer composite has high structural properties necessary for use in space. Monte Carlo simulation is used to evaluate the neutron radiation passage through the material. The results demonstrate that the protective layer made of the polymer composite is thinner and more suitable for spacecraft, which is crucial due to limited space on board.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Islam G. Alhindawy, M. I. Sayyed, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, Mohammad S. Alomar, Gaber A. Elawadi, K. A. Mahmoud
Summary: This study investigated the effects of Neodymium (III) nitrate hexahydrate and lanthanum nitrate hexahydrate on the structural and radiation shielding properties of zircon mineral, and a new La/Nb-doped ZrO2 nanocomposite was fabricated. Experimental techniques such as energy-dispersive X-ray, scanning electron microscope, transmission electron microscopy, and X-ray diffraction pattern were used to analyze the structure and composition of the fabricated nanocomposites. Monte Carlo simulation was employed to evaluate the gamma-ray shielding properties. The results showed that the fabricated composites had good shielding characteristics, with a shielding capacity of 30-50% compared to pure lead in the intermediate energy range of 0.244-2.506 MeV.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Hassan Salah, Mohammed Alkhorayef, Layal Jambi, Mohammed Almuwanis, Abdelmoneim Sulieman
Summary: Cardiovascular nuclear medicine imaging examinations expose patients to high doses of ionizing radiation. This study assessed the radiation doses and public exposure in cardiac rest and stress SPECT scans. The effective dose from cardiac stress was higher than previous studies, which may be influenced by clinical indication imaging protocols and radiation safety measures.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Leandro Barbosa da Silveira Gatto, Delson Braz, Leonardo Pacifico, Paulo Travassos, Luis Alexandre Goncalves Magalhaes
Summary: This study evaluated the mean glandular dose (MGD) in mammography using a computed radiography (CR) system with a solid-state detector. Irradiations and simulations were conducted to determine the MGD and spectra for the same conditions. The results showed that the glandular dose was below the acceptable levels and the spectra were mostly in accordance with the literature.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Mawya Khafaji, Rashid Barnawi, Salma Amoudi, Hassan Gabbani, Rayan Alhazmi, Rayan Ahyad, Khalid Alsafi, Khuld Saeedi, Hassan Salah, Nissren Tamam, David Bradley, Sarah Albahiti, Abdelmoneim Sulieman
Summary: This study aimed to calculate typical values for common pediatric studies at King Abdulaziz University Hospital and compare them with other studies. The results showed that radiation dose levels in pediatric CT examinations were generally lower compared to other studies.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Faisal Almisned, Iskender Akkurt, Nurdan Karpuz
Summary: In this study, cross sections of medical radioisotopes were calculated using level density models. The results were compared with experimental data and it was found that the GSM level density models generally yielded consistent conclusions.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Shokufeh Saeid, Neda Mollakhalili-meybodi, Fateme Akrami Mohajeri, Farzan Madadizadeh, Elham Khalili Sadrabad
Summary: This study found that gamma irradiation significantly reduces the saponin and phytic acid content of quinoa. At a dose of 2.5 kGy, it can effectively reduce saponin and phytic acid without significantly damaging the antioxidant compounds.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Maria Demeter, Ion Calina, Anca Scarisoreanu, Valentina Mitran, Marcela Popa, Anisoara Cimpean, Mariana Carmen Chifiriuc, Marin Micutz, Elena Matei, Bogdana Mitu
Summary: Novel biocompatible composite hydrogels with good elastic and antimicrobial properties were synthesized by e-beam cross-linking using chitosan, water-soluble polymers, and silver nanoparticles (AgNP). The composite hydrogels showed high stability, absorption capability specific to infected wounds, and biocompatibility. The antimicrobial activity was influenced by the amount of AgNP and cross-linking degree, with significant inhibition against Gram-negative bacteria.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Anuor AT. Ayoub, Yushou Song, Mamoun IA. Sagiroun
Summary: This paper presents an assessment of the radiological hazard for humans from nuclear power plant effluent released into a river under normal operation scenarios. The study concludes that the radiological hazard from this effluent is minimal and within acceptable limits according to international standards. It also highlights the potential hazards related to the higher concentration of 137Cs in sediments over time.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Irabati Chakraborty, Nidhi Sinha, Bobby Antony
Summary: This article investigates the electron impact ionization of prebiotic molecules within the interstellar medium. By calculating the electron impact ionization cross section, the study provides insights into the chemistry of these molecules and their interaction with electrons, which play a vital role in the emergence of life's essential building blocks.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
C. V. Vishnu, Antony Joseph
Summary: This study investigated the gamma-ray shielding properties of composite materials made from natural rubber with different proportions of Barium Tungstate. The addition of Barium Tungstate significantly improved the characteristics of gamma radiation shielding. The experimental measurements showed good agreement with theoretical calculations obtained from simulation results.
RADIATION PHYSICS AND CHEMISTRY
(2024)
Article
Chemistry, Physical
Derya Mutlu, Idris Karagoz, Harun Sepetcioglu, Urkiye Akar Tarim, Orhan Gurler
Summary: This study examined the properties of epoxy composites with dendritic copper particles and found that the addition of copper particles improved the electrical conductivity and mechanical properties of the composites. The glass transition temperature of the composites could be adjusted by varying the copper particle ratio. The study also evaluated the shielding properties of epoxy-based composites against gamma radiation and found that the addition of copper particles significantly altered the microstructure and mechanical properties of the composites.
RADIATION PHYSICS AND CHEMISTRY
(2024)
