Multifiller nanocomposites containing gadolinium oxide and bismuth nanoparticles with enhanced X‐ray attenuation property

Jayakumar, Sangeetha; Mani, Vadivel; Saravanan, T.; Rajamanickam, Karunanithi; Prabhu, Alex Daniel; Philip, John

doi:10.1002/app.51252

Cited by 12 publications

(2 citation statements)

References 69 publications

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“…However, the relative height of these vibrations indicates that the alkyl chains in these molecules are very few and short. There are no signs of the presence of aromatic rings for samples 3 and 4; the spectra of samples 2, 5, and 1 suggest the presence of aromatic rings in the structure of the preparation due to a doublet of peaks at frequencies 1608 and 1636 cm −1 and, additionally, a clear signal at frequencies around 830 cm −1 [51].…”

Section: Discussionmentioning

confidence: 89%

Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler

et al. 2022

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Complex composite materials are used in many areas of dentistry. Initially, chemically hardened materials were also used, and in this group nanohybrid composites are highly valued. They are often used today, mainly for the direct reconstruction of damaged hard tooth tissue materials for rebuilding damaged tissues using indirect adhesive techniques. The research was conducted to determine the mechanical properties of materials with nanofillers. The article focuses on methods of important test methods for dental prosthetics: resilience, abrasion, wear test, impact strength, hardness, SEM, and chemical analysis. As part of this work, five different series of hybrid composites with nano-fillers were tested. The mechanical properties of composites, such as compressive strength, microhardness, flexural strength, and modulus of elasticity, depend mainly on the type, particle size, and amount of filler introduced. The obtained test results showed that the type and amount of nanofiller have a significant influence on the mechanical and tribological properties. The introduction of nanofillers allowed us to obtain higher mechanical properties compared to classic materials discussed by other researchers. The study observed a change in vibrations in the IR spectrum, which allowed a comparison of the organic structures of the studied preparations.

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Section: Discussionmentioning

confidence: 89%

Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler

et al. 2022

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“…Therefore, with regard to process technologies used to improve the density of shielding films, studies have focused on forming a dense particle structure of the shielding material and on directly increasing the content of the shielding material relative to the mixed material [5]. Tungsten, boron, barium sulfate, bismuth, gadolinium, and antimony are some of the eco-friendly shielding materials that can help reduce the exposure risk to heavy metals and deal with the disposal issue after use [6,7]. Among eco-friendly shielding materials, tungsten, which has a high density, can help control the thickness and weight of the shield, and it can be recycled, making it the most promising candidate for replacing lead [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Polymer Shell Structure of a Gamma-ray Shielding Film Prepared Using Composite Material on Shielding Performance

Kim

2022

Coatings

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Medical protective clothing should be flexible to ensure free movement of healthcare personnel. This study aimed to investigate the effects of a polymer’s physical properties on the particle composition of a shielding material, constituent component miscibility, and shielding performance. To ensure flexibility by reducing the thickness of the shielding garment, polymer-based composite materials are mainly used as shielding materials. The shielding performance varies depending on whether the polymer used is in an emulsion or powder state. In this study, we found that a shielding film manufactured through an injection process after mixing a polymer in a powder form with tungsten powder exhibited 0.95%–2.5% higher shielding performance than that manufactured using the calendering process with an emulsion polymer. The shell structure formed when using the powder polymer maintains the spacing between the particles owing to the double coating of the tungsten particles and improves their dispersion. Additionally, the primary issue when combining an emulsion polymer and shielding material, that is the aggregation between the shielding material particles and between the polymer particles, could be alleviated, resulting in improved shielding performance. We concluded that the polymer-powder mixing method contributes to the reproducibility of the process technology when manufacturing shielding films.

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Progress in Ionizing Radiation Shielding Materials

Wu,

Wang

2024

Adv Eng Mater

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The continuous development of ionizing radiation in medical imaging and treatment, nuclear reactors, food irradiation, and other fields is accompanied by potential risks. It protects related equipment and personnel by adopting radiation shielding materials to reduce irradiation. Due to the advancement of science and technology, many high‐performance radiation protection materials have been reported. Ionizing radiation is a complex environment involving X‐ray imaging, radiation therapy, nuclear power operation, and space radiation. Irradiation energy, irradiation type, and the measurement of shielding material have essential effects on shielding efficiency. However, there has not been a general review of the preparations and properties of ionizing radiation shielding materials in the light of different matrixes in recent years. Herein, a comprehensive overview of recent advancements in radiation shielding materials, categorized into alloys, concretes, glasses and ceramics, and polymer composites, is presented. Furthermore, the synthesis methods employed for these materials and their respective radiation shielding properties are discussed. Finally, the current research gap and possible future scope of radiation shielding materials are proposed.

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Multifiller nanocomposites containing gadolinium oxide and bismuth nanoparticles with enhanced X‐ray attenuation property

Cited by 12 publications

References 69 publications

Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler

Tests of Dental Properties of Composite Materials Containing Nanohybrid Filler

Effect of Polymer Shell Structure of a Gamma-ray Shielding Film Prepared Using Composite Material on Shielding Performance

Progress in Ionizing Radiation Shielding Materials

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