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Batool SS, Saleem R, Khan RRM, Saeed Z, Pervaiz M, Summer M. Enhancing photocatalytic performance of zirconia-based nanoparticles: A comprehensive review of factors, doping strategies, and mechanisms. MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING 2024; 178:108419. [DOI: 10.1016/j.mssp.2024.108419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
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Muhetaer A, Tang C, Anniwaer A, Yang H, Huang C. Advances in ceramics for tooth repair: From bench to chairside. J Dent 2024; 146:105053. [PMID: 38729288 DOI: 10.1016/j.jdent.2024.105053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/12/2024] Open
Abstract
OBJECTIVES To give a comprehensive review of advancement in dental ceramics, fabrication methods, and the challenges associated with clinical application. DATA, SOURCES AND STUDY SELECTION Researches on chemical composition, biomechanical behaviors, optical properties, bonding strategies and fabrication methods were included. The search of articles was independently conducted by two authors in the PubMed, Scopus, Medline and Web of Science. CONCLUSIONS Dental ceramics have shown significant advancements in terms of esthetics and function. However, improving fracture toughness without compromising optical properties remains a challenge. Repairing fractured zirconia or glass-matrix ceramic prostheses with the same material is difficult due to the sintering process. Developing innovative bonding techniques that provide strong and long-lasting bonding strength between ceramics and tooth structures poses a recurring obstacle. CLINICAL SIGNIFICANCE Despite the emergence of dental ceramics and fabrication techniques, certain limitations such as susceptibility to brittleness and fracture still exist. Therefore, the current review provided valuable information around the advanced dental ceramics in tooth repair. The laboratory test data and the clinical outcome are also presented in details, aiming to guide clinicians in making informed decisions regarding ceramic restorations.
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Affiliation(s)
- Aihemaiti Muhetaer
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China; Department of Prosthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Chuliang Tang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China; Department of Prosthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Annikaer Anniwaer
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China
| | - Hongye Yang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China; Department of Prosthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China.
| | - Cui Huang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China; Department of Prosthodontics, School & Hospital of Stomatology, Wuhan University, Wuhan, PR China.
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Ouyang J, Peng Y, Zhou W, Liang X, Wang G, Zhang Q, Yuan B. The Role of Oxygen Vacancies in Phase Transition and the Optical Absorption Properties within Nanocrystalline ZrO 2. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:967. [PMID: 38869592 PMCID: PMC11173411 DOI: 10.3390/nano14110967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/14/2024]
Abstract
Zirconia (ZrO2) nanoparticles were synthesized using a solvothermal method under varying synthesis conditions, namely acidic, neutral, and alkaline. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) were leveraged to investigate the phase evolution and topographical features in detail. The resulting crystal phase structures and grain sizes exhibited substantial variation based on these conditions. Notably, the acidic condition fostered a monoclinic phase in ZrO2, while the alkaline condition yielded a combination of tetragonal and monoclinic phases. In contrast, ZrO2 obtained under neutral conditions demonstrated a refinement in grain sizes, constrained within a 1 nm scale upon an 800 °C thermal treatment. This was accompanied by an important transformation from a monoclinic phase to tetragonal phase in the ZrO2. Furthermore, a rigorous examination of XPS data and a UV-visible spectrometer (UV-vis) analysis revealed the significant role of oxygen vacancies in phase stabilization. The notable emergence of new energy bands in ZrO2, in stark contrast to the intrinsic bands observed in a pure monoclinic sample, are attributed to these oxygen vacancies. This research offers valuable insights into the novel energy bands, phase stability, and optical absorption properties influenced by oxygen vacancies in ZrO2. Moreover, it proposes an innovative energy level model for zirconia, underpinning its applicability in diverse technological areas.
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Affiliation(s)
- Jing Ouyang
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Yonghui Peng
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Wentao Zhou
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Xianfeng Liang
- Key Laboratory for Mineral Materials and Application of Hunan Province, Department of Inorganic Materials, School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (Y.P.); (W.Z.); (X.L.)
- Engineering Research Center of Ministry of Education for Carbon Emission Reduction in Metal Resource Exploitation and Utilization, Central South University, Changsha 410083, China
| | - Gang Wang
- State Key Laboratory of Advanced Refractories, Luoyang 471039, China; (G.W.); (Q.Z.)
| | - Qi Zhang
- State Key Laboratory of Advanced Refractories, Luoyang 471039, China; (G.W.); (Q.Z.)
| | - Bo Yuan
- State Key Laboratory of Advanced Refractories, Luoyang 471039, China; (G.W.); (Q.Z.)
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Zhu Z, Huang C, Liu L, Wang J, Gou X. Magnetically actuated pandanus fruit-like nanorobots for enhanced pH-stimulated drug release and targeted biofilm elimination in wound healing. J Colloid Interface Sci 2024; 661:374-388. [PMID: 38306747 DOI: 10.1016/j.jcis.2024.01.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/22/2024] [Accepted: 01/27/2024] [Indexed: 02/04/2024]
Abstract
Conventional antibiotic treatment struggles to eliminate biofilms in wounds due to the formation compact barrier. Herein, we fabricate magnetic pandanus fruit-like nanorobots (NRs) that function as drug carriers while exhibit excellent maneuverability for enhanced antibacterial tasks. Specifically, zeolitic imidazolate framework-8 (ZIF-8) is self-assembled on the surface of Fe3O4 nanoparticles, loaded with a small quantity of ciprofloxacin, and covered with a layer of polydopamine (PDA). Energized by external magnetic fields, the NRs (F@Z/C/P) are steered in defined direction to penetrate the infection tissues, and effectively arrive targeted areas for pH stimulated drug release and near-infrared triggered phototherapy, contributing to an antibacterial rate of >99.9 %. The Zn2+ in ZIF-8 and the catechol group in PDA form catechol-ZIF-8-drug structures, which effectively reduce drug release by 11 % in high pH environments and promote rapid drug release by 14 % in low pH environments compared to NRs without PDA. Additionally, F@Z/C/P can remove the biofilms and bacteria in Staphylococcus aureus infected wounds, and eventually be discharged from the infected site after treatment, leading to faster healing with an intact epidermis and minimal harm to surrounding tissues and organs. The study provides a promising strategy for tackling biofilm-associated infections in vivo through the use of multi-functional NRs.
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Affiliation(s)
- Zixin Zhu
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China; Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Chenjun Huang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Laiyi Liu
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Jiayi Wang
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China
| | - Xue Gou
- Institute of Biomedical Engineering, College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China; Key Laboratory of Advanced Technologies of Materials (Ministry of Education), School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, PR China.
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Satyapal GK, Haque R, Kumar N. Gamma irradiation in modulating arsenic bioremediation potential of Pseudomonas sp. AK1 and AK9. Int J Radiat Biol 2024; 100:934-939. [PMID: 38657135 DOI: 10.1080/09553002.2024.2345137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 04/11/2024] [Indexed: 04/26/2024]
Abstract
PURPOSE Present study deals with the role of gamma irradiation in modulating arsenic bioremediation of Pseudomonas sp. AK1 and AK9 strains. MATERIALS AND METHODS The bacterial strains AK1 and AK9 of Pseudomonas sp. were irradiated at different doses (5 Gy, 10 Gy, 15 Gy and 20 Gy) of gamma irradiation. The effect of γ-irradiation on the growth and arsenic modulating ability of AK1 and AK9 strains was determined in the presence and absence of arsenic along with non-irradiated strains. Further, a comparative study of non-irradiated and irradiated strains by protein profiling in absence and presence of arsenic was carried out to confirm of the increased expression ofarsenite oxidase. RESULTS Both strains were able to transform AsIII to AsV. Both strains AK1 and AK9 decrease the arsenic concentration by 626.68 ppb (13.36%) and 686.40 ppb (14.71%) after an incubation period of 96 h in presence of arsenic. Gamma irradiated AK9 strains showed doubled growth in presence of arsenic as compared to non-irradiated strains at 10 Gy treatment whereas no changes in growth was observed in irradiated AK1 strains. Gamma irradiated AK9 strain decrease 378.65 ppb (7.27%) more arsenic concentration from natural water sample supplemented with AsIII than non-irradiated AK9 strain. Further, in the protein profile, increased expression of arsenite oxidase (∼85 kDa) was observed in irradiated AK9 strains in presence of arsenic. CONCLUSIONS Overall, the results suggested that the gamma irradiated AK9 strain having potential for arsenic accumulation and increased arsenite tolerance may play a great role in the bioremediation of the arsenite at arsenic contaminated sites.
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Affiliation(s)
| | - Rizwanul Haque
- Department of Biotechnology, Central University of South Bihar, Gaya, India
| | - Nitish Kumar
- Department of Biotechnology, Central University of South Bihar, Gaya, India
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Wei R, Zheng R, Li C, Wang W, Zhang H, Sun Q, Lv J, Zhang G, Liu L, Zhao X. ZrO 2 Superhydrophobic Coating with an Excellent Corrosion Resistance and Stable Degradation Performance on Zr-Based Bulk Metallic Glass. MATERIALS (BASEL, SWITZERLAND) 2023; 17:118. [PMID: 38203972 PMCID: PMC10779633 DOI: 10.3390/ma17010118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/18/2023] [Accepted: 12/24/2023] [Indexed: 01/12/2024]
Abstract
Photocatalysis is an energy-saving and high-efficiency green environmental technology. Because of its wide band gap and low light utilization, few studies have been conducted on ZrO2 used as a photocatalytic material. In this paper, a corrosion-resistant superhydrophobic ZrO2 coating was prepared on the surface of Zr-based bulk metallic glass by electrochemical etching. This coating not only showed a better corrosion resistance and easier collection, but also presented a stable degradation performance when combined with H2O2; these characteristics are necessary for photocatalysts to survive under harsh environments. This study provides a new direction for designing superhydrophobic surfaces on bulk metallic glass that possess a functional performance.
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Affiliation(s)
- Ranfeng Wei
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
| | - Rui Zheng
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.Z.); (H.Z.)
| | - Chaojun Li
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
| | - Wei Wang
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
| | - Hao Zhang
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.Z.); (H.Z.)
| | - Qijing Sun
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
| | - Jingwang Lv
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
| | - Guoyang Zhang
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
| | - Li Liu
- School of Environmental and Material Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.Z.); (H.Z.)
| | - Xiangjin Zhao
- College of Nuclear Equipment and Nuclear Engineering, Yantai University, No. 30 Qingquan Road, Yantai 264005, China; (R.W.); (C.L.); (W.W.); (Q.S.); (J.L.)
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Sumathi P, Renuka N, Subramanian R, Periyasami G, Rahaman M, Karthikeyan P. Prospective in vitro A431 cell line anticancer efficacy of zirconia nanoflakes derived from Enicostemma littorale aqueous extract. Cell Biochem Funct 2023; 41:676-686. [PMID: 37341988 DOI: 10.1002/cbf.3822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/28/2023] [Accepted: 06/03/2023] [Indexed: 06/22/2023]
Abstract
Biomedical applications of zirconia nanomaterials were limited in biological systems. In this research, 8-15 nm size zirconia nanoflakes (ZrNFs) were fabricated and their nature, morphology, and biocompatibility were evaluated. The synthesis was carried out using Enicostemma littorale plant extract as an effective reducing and capping agent. Physiochemical properties of prepared ZrNFs were characterized using diverse instrumental studies such as UV-vis spectrophotometer, Fourier-transform infrared, powder X-ray diffractometer, scanning electron microscope, transmission electron microscope (TEM), energy dispersive X-ray, and cyclic voltammetry (CV). The XRD pattern confirmed the tetragonal phases of ZrNFs and the highest crystallite size of Zr0.02, Zr0.02, and Zr0.06 was 56, 50, and 44 nm, respectively. The morphology of samples was assessed using TEM. Electrophysiological effects of ZrNFs in the cellular interaction process were revealed by the slower rate of electron transfer results in CV demonstration. Biocompatibility of synthesized ZrNFs was studied on A431 human epidermoid carcinoma epithelial cells. The cell viability was increased with an increasing the concentration of nanoflakes up to 6.50-100 μg/mL. The cell viability and observed IC50 values (44.25, 36.49, and 39.62 μg/mL) reveals that the synthesized ZrNFs using E. littorale extract is found to be efficient toxic to A431 cancer cell lines.
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Affiliation(s)
- Paramasivam Sumathi
- Department of Chemistry, Gobi Arts & Science College (Autonomous), Gopichettipalayam, Erode, Tamil Nadu, India
| | - Navaneethan Renuka
- Maths and Natural Science, Abu dhabi Men's College, Higher College of Technology, Abudhabi, UAE
| | - Ramasamy Subramanian
- Department of Chemistry, Sun Arts and Science College, Tiruvannamalai, Tamil Nadu, India
| | | | - Mostafizur Rahaman
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Perumal Karthikeyan
- Department of Chemistry and Biochemistry, Ohio State University, Columbus, Ohio, USA
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Bannunah AM. Biomedical Applications of Zirconia-Based Nanomaterials: Challenges and Future Perspectives. Molecules 2023; 28:5428. [PMID: 37513299 PMCID: PMC10383095 DOI: 10.3390/molecules28145428] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/30/2023] Open
Abstract
ZrO2 nanoparticles have received substantially increased attention in every field of life owing to their wide range of applications. Zirconium oxide is a commercially economical, non-hazardous, and sustainable metal oxide having diversified potential applications. ZrO2 NPs play a vast role in the domain of medicine and pharmacy such as anticancer, antibacterial, and antioxidant agents and tissue engineering owing to their reliable curative biomedical applications. In this review article, we address all of the medical and biomedical applications of ZrO2 NPs prepared through various approaches in a critical way. ZrO2 is a bio-ceramic substance that has received increased attention in biomimetic scaffolds owing to its high mechanical strength, excellent biocompatibility, and high chemical stability. ZrO2 NPs have demonstrated potential anticancer activity against various cancer cells. ZrO2-based nanomaterials have exhibited potential antibacterial activity against various bacterial strains and have also demonstrated excellent antioxidant activity. The ZrO2 nanocomposite also exhibits highly sensitive biosensing activity toward the sensing of glucose and other biological species.
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Affiliation(s)
- Azzah M Bannunah
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
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Hossain N, Mobarak MH, Hossain A, Khan F, Mim JJ, Chowdhury MA. Advances of plant and biomass extracted zirconium nanoparticles in dental implant application. Heliyon 2023; 9:e15973. [PMID: 37215906 PMCID: PMC10192772 DOI: 10.1016/j.heliyon.2023.e15973] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/25/2023] [Accepted: 04/28/2023] [Indexed: 05/24/2023] Open
Abstract
Nanoparticles are minimal materials with unique physicochemical features that set them apart from bulk materials of the same composition. These properties make nanoparticles highly desirable for use in commercial and medical research. The primary intention for the development of nanotechnology is to achieve overarching social objectives like bettering our understanding of nature, boosting productivity, improving healthcare, and extending the bounds of sustainable development and human potential. Keeping this as a motivation, Zirconia nanoparticles are becoming the preferred nanostructure for modern biomedical applications. This nanotechnology is exceptionally versatile and has several potential uses in dental research. This review paper concentrated on the various benefits of zirconium nanoparticles in dentistry and how they provide superior strength and flexibility compared to their counterparts. Moreover, the popularity of zirconium nanoparticles is also growing as it has strong biocompatibility potency. Zirconium nanoparticles can be used to develop or address the major difficulty in dentistry. Therefore, this review paper aims to provide a summary of the fundamental research and applications of zirconium nanoparticles in dental implants.
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Affiliation(s)
- Nayem Hossain
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Md Hosne Mobarak
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Amran Hossain
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Fardin Khan
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Juhi Jannat Mim
- Department of Mechanical Engineering, IUBAT-International University of Business Agriculture and Technology, Bangladesh
| | - Mohammad Asaduzzaman Chowdhury
- Department of Mechanical Engineering, Dhaka University of Engineering and Technology (DUET), Gazipur, Gazipur, 1707, Bangladesh
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Rodrigues AP, Santos PMP, Veiga JP, Casimiro MH, Ferreira LM. Electron Beam Irradiation on the Production of a Si- and Zr-Based Hybrid Material: A Study by FTIR and WDXRF. MATERIALS (BASEL, SWITZERLAND) 2023; 16:489. [PMID: 36676223 PMCID: PMC9862691 DOI: 10.3390/ma16020489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/24/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Sol-gel production of hybrid materials has, to some extent, revolutionised materials' engineering and the way science and technology perceive the creation of new materials. Despite that, the method presents some limitations that are circumvented by radiation processing. Electron beam irradiation was used to promote synthesis of hybrid structures while using silanol-terminated PDMS, TEOS and TPOZ as precursors. Evaluation of the method's performance was executed by gel fraction determination, WDXRF and FTIR-ATR. Results showed that, although there is some pre-irradiation reactivity between precursors, radiolysis induces scission on multiple sites of precursor's structures, which induces hybrid network formation to a greater extent. Characterisation allowed determining electron beam irradiation to be effective in the creation of Si-O-Zr bonds, resulting in the production of a Class II hybrid material.
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Affiliation(s)
- Alexandra P. Rodrigues
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, Bobadela, 2695-066 Loures, Portugal
- Departamento de Conservação e Restauro (DCR), Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Pedro M. P. Santos
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, Bobadela, 2695-066 Loures, Portugal
| | - João Pedro Veiga
- Departamento de Conservação e Restauro (DCR), Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
- CENIMAT/i3N, Centro de Investigação de Materiais, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal
| | - Maria Helena Casimiro
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, Bobadela, 2695-066 Loures, Portugal
| | - Luís M. Ferreira
- Centro de Ciências e Tecnologias Nucleares (C2TN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, Bobadela, 2695-066 Loures, Portugal
- Departamento de Engenharia e Ciências Nucleares (DECN), Instituto Superior Técnico, Universidade de Lisboa, Estrada Nacional 10, km 139,7, Bobadela, 2695-066 Loures, Portugal
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Kumari N, Aulakh MK, Anand V, Sareen S, Verma M, Sharma A, Kataria R, Mutreja V. Visible-Light Driven Degradation of Tetracycline Hydrochloride Using Zirconia Nanoparticles as Photocatalysts. Top Catal 2022. [DOI: 10.1007/s11244-022-01735-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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