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Razavian Tabari SR, Salahinejad E. Selective recovery of gold and silver from electronic wastes through a sequential process of Qalkari and room-temperature hydrometallurgy. J Environ Manage 2024; 351:119778. [PMID: 38086113 DOI: 10.1016/j.jenvman.2023.119778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 11/16/2023] [Accepted: 12/03/2023] [Indexed: 01/14/2024]
Abstract
This work was focused on the selective recovery of gold and silver from electronic wastes using a sequential process of pyrometallurgy (Qalkari) and room-temperature hydrometallurgy. In the first step, electronic wastes underwent Qalkari recycling, yielding tablets containing precious elements (Qalkari furnace product) and melting slag (Qalkari furnace waste). In the subsequent hydrometallurgy phase, the nitric acid concentration and the input solid amount were optimized for the effective room-temperature recovery of gold. Due to the successful separation of precision elements and disturbing substances in Qalkari, the gold recovery efficiency of 99.99% was obtained at the acid concentration of 50% (v/v) and the solid input of 15% (w/v). Afterwards, HCl, NH4Cl, and NaCl were used for silver recovery from the Qalkari-processed gold-recovered leaching solution, leading to the efficiency of 99.99%. But NH4Cl was recognized as the most effective precipitant as it promises the most enhanced potential for the possible subsequent recovery of palladium. In conclusion, this study draws the effectiveness of Qalkari in recycling electronic wastes, with a significant impact on the efficiency of succeeding room-temperature hydrometallurgical processes for gold and silver recovery within a reasonable leaching time.
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Affiliation(s)
| | - Erfan Salahinejad
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.
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2
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Moradi MR, Salahinejad E, Sharifi E, Tayebi L. Controlled drug delivery from chitosan-coated heparin-loaded nanopores anodically grown on nitinol shape-memory alloy. Carbohydr Polym 2023; 314:120961. [PMID: 37173015 PMCID: PMC10585653 DOI: 10.1016/j.carbpol.2023.120961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 04/12/2023] [Accepted: 04/24/2023] [Indexed: 05/15/2023]
Abstract
Nitinol (NiTi shape-memory alloy) is an interesting candidate in various medical applications like dental, orthopedic, and cardiovascular devices, owing to its unique mechanical behaviors and proper biocompatibility. The aim of this work is the local controlled delivery of a cardiovascular drug, heparin, loaded onto nitinol treated by electrochemical anodizing and chitosan coating. In this regard, the structure, wettability, drug release kinetics, and cell cytocompatibility of the specimens were analyzed in vitro. The two-stage anodizing process successfully developed a regular nanoporous layer of Ni-Ti-O on nitinol, which considerably decreased the sessile water contact angle and induced hydrophilicity. The application of the chitosan coatings controlled the release of heparin mainly by a diffusional mechanism, where the drug release mechanisms were evaluated by the Higuchi, first-order, zero-order, and Korsmeyer-Pepass models. Human umbilical cord endothelial cells (HUVECs) viability assay also showed the non-cytotoxicity of the samples, so that the best performance was found for the chitosan-coated samples. It is concluded that the designed drug delivery systems are promising for cardiovascular, particularly stent applications.
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Affiliation(s)
- M R Moradi
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - E Salahinejad
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.
| | - E Sharifi
- Department of Tissue Engineering and Biomaterials, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran
| | - L Tayebi
- Marquette University School of Dentistry, Milwaukee, WI 53233, USA
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Namdar A, Salahinejad E. Advances in ion-doping of Ca-Mg silicate bioceramics for bone tissue engineering. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.215001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Maadani AM, Salahinejad E. Performance comparison of PLA- and PLGA-coated porous bioceramic scaffolds: Mechanical, biodegradability, bioactivity, delivery and biocompatibility assessments. J Control Release 2022; 351:1-7. [PMID: 36115555 DOI: 10.1016/j.jconrel.2022.09.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022]
Abstract
Bioceramics, particularly calcium phosphates, bioactive glasses, and crystalline silicates, are a principal group of biomaterials employed for the regeneration of damaged tissues and therapeutic delivery. The development of ceramic tissue engineering scaffolds with an appropriate combination of mechanical and biological properties is still one of the key challenges in this field. In this regard, the deposition of polymeric coatings on the scaffolds is a simple and effective approach to reinforce their functions. Among different polymers, the influences of biodegradable aliphatic polyester coatings, especially polylactic acid (PLA) and poly(lactic-co-glycolic acid) (PLGA), over the performance of the scaffolds have been investigated in numerous research. This review paper provides a comprehensive comparison of PLA- and PLGA-coated bioceramic scaffolds which are mainly employed in bone tissue engineering. It is concluded that both the polymers enhance the mechanical behaviors of the scaffolds, but control their biodegradability, bioactivity, and delivery kinetics, where PLA acts almost more influentially than PLGA in comparison. However, the response of biocompatibility to this surface treatment is condition-dependent and requires case-by-case experiments to be determined accurately.
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Affiliation(s)
- Amir Mohammad Maadani
- Faculty of Materials Science and Engineering, K.N. Toosi University of Technology, Tehran, Iran
| | - Erfan Salahinejad
- Faculty of Materials Science and Engineering, K.N. Toosi University of Technology, Tehran, Iran.
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Sharifi E, Sadati SA, Yousefiasl S, Sartorius R, Zafari M, Rezakhani L, Alizadeh M, Nazarzadeh Zare E, Omidghaemi S, Ghanavatinejad F, Jami M, Salahinejad E, Samadian H, Paiva‐Santos AC, De Berardinis P, Shafiee A, Tay FR, Pourmotabed S, Makvandi P. Cell loaded hydrogel containing Ag-doped bioactive glass-ceramic nanoparticles as skin substitute: Antibacterial properties, immune response, and scarless cutaneous wound regeneration. Bioeng Transl Med 2022; 7:e10386. [PMID: 36176609 PMCID: PMC9471996 DOI: 10.1002/btm2.10386] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 05/21/2022] [Accepted: 07/16/2022] [Indexed: 12/12/2022] Open
Abstract
An ideal tissue-engineered dermal substitute should possess angiogenesis potential to promote wound healing, antibacterial activity to relieve the bacterial burden on skin, as well as sufficient porosity for air and moisture exchange. In light of this, a glass-ceramic (GC) has been incorporated into chitosan and gelatin electrospun nanofibers (240-360 nm), which MEFs were loaded on it for healing acceleration. The GC was doped with silver to improve the antibacterial activity. The bioactive nanofibrous scaffolds demonstrated antibacterial and superior antibiofilm activities against Gram-negative and Gram-positive bacteria. The nanofibrous scaffolds were biocompatible, hemocompatible, and promoted cell attachment and proliferation. Nanofibrous skin substitutes with or without Ag-doped GC nanoparticles did not induce an inflammatory response and attenuated LPS-induced interleukin-6 release by dendritic cells. The rate of biodegradation of the nanocomposite was similar to the rate of skin regeneration under in vivo conditions. Histopathological evaluation of full-thickness excisional wounds in BALB/c mice treated with mouse embryonic fibroblasts-loaded nanofibrous scaffolds showed enhanced angiogenesis, and collagen synthesis as well as regeneration of the sebaceous glands and hair follicles in vivo.
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Affiliation(s)
- Esmaeel Sharifi
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical ScienceShahrekordIran
- Department of Tissue Engineering and Biomaterials, School of Advanced Medical Sciences and TechnologiesHamadan University of Medical SciencesHamadanIran
| | - Seyede Athar Sadati
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical ScienceShahrekordIran
| | - Satar Yousefiasl
- School of DentistryHamadan University of Medical SciencesHamadanIran
| | - Rossella Sartorius
- Institute of Biochemistry and Cell Biology (IBBC)National Research Council (CNR)NaplesItaly
| | - Mahdi Zafari
- National Cell Bank, Pasteur Institute of IranTehranIran
| | - Leila Rezakhani
- Fertility and Infertility Research CenterHealth Technology Institute, Kermanshah University of Medical SciencesKermanshahIran
| | - Morteza Alizadeh
- Department of Tissue Engineering, School of MedicineShahroud University of Medical SciencesShahroudIran
| | | | - Shadi Omidghaemi
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical ScienceShahrekordIran
| | - Fatemeh Ghanavatinejad
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical ScienceShahrekordIran
| | - Mohammad‐Saeid Jami
- Cellular and Molecular Research Center, Basic Health Sciences InstituteShahrekord University of Medical ScienceShahrekordIran
| | - Erfan Salahinejad
- Faculty of Materials Science and EngineeringK. N. Toosi University of TechnologyTehranIran
| | - Hadi Samadian
- Dental Implants Research CenterHamadan University of Medical SciencesHamadanIran
| | - Ana Cláudia Paiva‐Santos
- Department of Pharmaceutical Technology, Faculty of PharmacyUniversity of CoimbraCoimbraPortugal
- REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of PharmacyUniversity of CoimbraCoimbraPortugal
| | | | - Abbas Shafiee
- UQ Diamantina Institute, Translational Research Institute, The University of QueenslandBrisbaneQueenslandAustralia
| | | | - Samiramis Pourmotabed
- Department of Emergency Medicine, School of MedicineHamadan University of Medical SciencesHamadanIran
| | - Pooyan Makvandi
- School of ChemistryDamghan UniversityDamghanIran
- Istituto Italiano di Tecnologia, Centre for Materials InterfacesPontederaPisaItaly
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Yousefiasl S, Sharifi E, Salahinejad E, Makvandi P, Irani S. Bioactive 3D-Printed Chitosan-Based Scaffolds for Personalized Craniofacial Bone Tissue Engineering. Engineered Regeneration 2022. [DOI: 10.1016/j.engreg.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Mofakhami S, Salahinejad E. Biphasic calcium phosphate microspheres in biomedical applications. J Control Release 2021; 338:527-536. [PMID: 34499980 DOI: 10.1016/j.jconrel.2021.09.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 01/02/2023]
Abstract
Biphasic calcium phosphate (BCP) microspheres benefit from, on the one hand, a desired shape offering improved flowability and injectability to fill complex-shaped bone defects and on the other hand, a promising combination of bioresorbability, bioactivity, biocompatibility, osteogenesis and angiogenesis. The biofunctional characteristics of BCP microspheres are mainly controlled by varying the constitute phase ratio, porosity and surface roughness, which are all determined by the used production route and its parameters. In this paper, the manufacturing methods, properties and applications of BCP microspheres are reviewed and concluded in terms of future work directions to develop their uses in biomedicine, particularly in bone tissue regenerative and delivery applications.
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Affiliation(s)
- Sohrab Mofakhami
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - Erfan Salahinejad
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.
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Davoodian F, Salahinejad E, Sharifi E, Barabadi Z, Tayebi L. PLGA-coated drug-loaded nanotubes anodically grown on nitinol. Materials Science and Engineering: C 2020; 116:111174. [DOI: 10.1016/j.msec.2020.111174] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/29/2020] [Accepted: 06/07/2020] [Indexed: 12/12/2022]
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Abbasnezhad N, Zirak N, Shirinbayan M, Kouidri S, Salahinejad E, Tcharkhtchi A, Bakir F. Controlled release from polyurethane films: Drug release mechanisms. J Appl Polym Sci 2020. [DOI: 10.1002/app.50083] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Navideh Abbasnezhad
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
- Arts et Metiers Institute of Technology, CNAM, PIMM HESAM University Paris France
| | - Nader Zirak
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
- Faculty of Materials Science and Engineering K. N. Toosi University of Technology Tehran Iran
| | - Mohammadali Shirinbayan
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
- Arts et Metiers Institute of Technology, CNAM, PIMM HESAM University Paris France
| | | | - Erfan Salahinejad
- Faculty of Materials Science and Engineering K. N. Toosi University of Technology Tehran Iran
| | - Abbas Tcharkhtchi
- Arts et Metiers Institute of Technology, CNAM, PIMM HESAM University Paris France
| | - Farid Bakir
- Arts et Metiers Institute of Technology, CNAM, LIFSE HESAM University Paris France
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Jadidi A, Salahinejad E, Sharifi E, Tayebi L. Drug-delivery Ca-Mg silicate scaffolds encapsulated in PLGA. Int J Pharm 2020; 589:119855. [PMID: 32911045 DOI: 10.1016/j.ijpharm.2020.119855] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 09/01/2020] [Accepted: 09/02/2020] [Indexed: 12/23/2022]
Abstract
The aim of this work is to develop dual-functional scaffolds for bone tissue regeneration and local antibiotic delivery applications. In this respect, bioresorbable bredigite (Ca7MgSi4O16) porous scaffolds were fabricated by a foam replica method, loaded with vancomycin hydrochloride and encapsulated in poly lactic-co-glycolic acid (PLGA) coatings. Field emission scanning electron microscopy, Archimedes porosimetry and Fourier-transform infrared spectroscopy were used to characterize the structure of the scaffolds. The drug delivery kinetics and cytocompatibility of the prepared scaffolds were also studied in vitro. The bare sample exhibited a burst release of vancomycin and low biocompatibility with respect to dental pulp stem cells based on the MTT assay due to the fast bioresorption of bredigite. While keeping the desirable characteristics of pores for tissue engineering, the biodegradable PLGA coatings modified the drug release kinetics, buffered physiological pH and hence improved the cell viability of the vancomycin-loaded scaffolds considerably.
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Affiliation(s)
- A Jadidi
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - E Salahinejad
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.
| | - E Sharifi
- Department of Tissue Engineering and Biomaterials, School of Advanced Medical Sciences and Technologies, Hamadan University of Medical Sciences, Hamadan, Iran
| | - L Tayebi
- Department of Developmental Sciences, Marquette University School of Dentistry, Milwaukee, WI 53233, USA
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Shahrouzifar M, Salahinejad E, Sharifi E. Co-incorporation of strontium and fluorine into diopside scaffolds: Bioactivity, biodegradation and cytocompatibility evaluations. Materials Science and Engineering: C 2019; 103:109752. [DOI: 10.1016/j.msec.2019.109752] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 05/08/2019] [Accepted: 05/14/2019] [Indexed: 12/22/2022]
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12
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Rastegari S, Salahinejad E. Surface modification of Ti-6Al-4V alloy for osseointegration by alkaline treatment and chitosan-matrix glass-reinforced nanocomposite coating. Carbohydr Polym 2019; 205:302-311. [DOI: 10.1016/j.carbpol.2018.10.082] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 01/22/2023]
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Karimi S, Salahinejad E, Sharifi E, Nourian A, Tayebi L. Bioperformance of chitosan/fluoride-doped diopside nanocomposite coatings deposited on medical stainless steel. Carbohydr Polym 2018; 202:600-610. [PMID: 30287041 DOI: 10.1016/j.carbpol.2018.09.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 09/12/2018] [Accepted: 09/13/2018] [Indexed: 12/27/2022]
Abstract
This work focuses on the structure, bioactivity, corrosion, and biocompatibility characteristics of chitosan-matrix composites reinforced with various amounts of fluoride-doped diopside nanoparticles (at 20, 40, 60, and 80 wt%) deposited on stainless steel 316 L. Bioactivity studies reveal that the presence of the nanoparticles in the coatings induces apatite-forming ability to the surfaces. Based on electrochemical impedance spectroscopy and polarization experiments, the in vitro corrosion resistance of the substrate was enhanced by increasing the level of the nanoparticles in the coating. The sample containing 60% of the nanoparticles presented the highest osteoblast-like MG63 cell viability, in comparison to the other prepared and even control samples. Also, the cell attachment on the surfaces was improved with increasing the amount of the nanoparticles in the coatings. It is eventually concluded that the application of chitosan/fluoride-doped diopside nanocomposite coatings improves the bioperformance of metallic implants.
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Affiliation(s)
- S Karimi
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran
| | - E Salahinejad
- Faculty of Materials Science and Engineering, K. N. Toosi University of Technology, Tehran, Iran.
| | - E Sharifi
- Department of Tissue Engineering and Biomaterials, School of Science and Advanced Technologies In Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - A Nourian
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - L Tayebi
- Department of Developmental Sciences, Marquette University School of Dentistry, Milwaukee, WI 53233, USA
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Javanbakht M, Salahinejad E, Hadianfard M. The effect of sintering temperature on the structure and mechanical properties of medical-grade powder metallurgy stainless steels. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2015.11.054] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Mirak M, ALizadeh M, Salahinejad E, Amini R. Zn-HA-TiO 2
nanocomposite coatings electrodeposited on a NiTi shape memory alloy. SURF INTERFACE ANAL 2015. [DOI: 10.1002/sia.5787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mohammad Mirak
- Department of Materials Science and Engineering; Shiraz University of Technology; Modarres Blvd. 71555-313 Shiraz Iran
| | - Morteza ALizadeh
- Department of Materials Science and Engineering; Shiraz University of Technology; Modarres Blvd. 71555-313 Shiraz Iran
| | - Erfan Salahinejad
- Faculty of Materials Science and Engineering; K.N. Toosi University of Technology; Tehran Iran
| | - Rasool Amini
- Department of Materials Science and Engineering; Shiraz University of Technology; Modarres Blvd. 71555-313 Shiraz Iran
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Affiliation(s)
- Mohammad Mirak
- Department of Materials Science and Engineering; Shiraz University of Technology; Modarres Blvd. 71555-313 Shiraz Iran
| | - Morteza Alizadeh
- Department of Materials Science and Engineering; Shiraz University of Technology; Modarres Blvd. 71555-313 Shiraz Iran
| | - Erfan Salahinejad
- Faculty of Materials Science and Engineering; K.N. Toosi University of Technology; Tehran Iran
| | - Rasool Amini
- Department of Materials Science and Engineering; Shiraz University of Technology; Modarres Blvd. 71555-313 Shiraz Iran
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Salahinejad E, Hadianfard MJ, Macdonald DD, Sharifi(Asl) S, Mozafari M, Walker KJ, Rad AT, Madihally SV, Vashaee D, Tayebi L. Surface Modification of Stainless Steel Orthopedic Implants by Sol–Gel ZrTiO4 and ZrTiO4–PMMA Coatings. J Biomed Nanotechnol 2013; 9:1327-35. [DOI: 10.1166/jbn.2013.1619] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Rouhani P, Salahinejad E, Kaul R, Vashaee D, Tayebi L. Nanostructured zirconium titanate fibers prepared by particulate sol–gel and cellulose templating techniques. Journal of Alloys and Compounds 2013; 568:102-105. [DOI: 10.1016/j.jallcom.2013.03.142] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
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Salahinejad E, Hadianfard M, Ghaffari M, Amini R, Bagheri Mashhadi S, Okyay A. Microstructural characterization of medical-grade stainless steel powders prepared by mechanical alloying and subsequent annealing. ADV POWDER TECHNOL 2013. [DOI: 10.1016/j.apt.2012.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Mozafari M, Salahinejad E, Shabafrooz V, Yazdimamaghani M, Vashaee D, Tayebi L. Multilayer bioactive glass/zirconium titanate thin films in bone tissue engineering and regenerative dentistry. Int J Nanomedicine 2013; 8:1665-72. [PMID: 23641155 PMCID: PMC3639719 DOI: 10.2147/ijn.s42659] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Surface modification, particularly coatings deposition, is beneficial to tissue-engineering applications. In this work, bioactive glass/zirconium titanate composite thin films were prepared by a sol-gel spin-coating method. The surface features of the coatings were studied by scanning electron microscopy, atomic force microscopy, and spectroscopic reflection analyses. The results show that uniform and sound multilayer thin films were successfully prepared through the optimization of the process variables and the application of carboxymethyl cellulose as a dispersing agent. Also, it was found that the thickness and roughness of the multilayer coatings increase nonlinearly with increasing the number of the layers. This new class of nanocomposite coatings, comprising the bioactive and inert components, is expected not only to enhance bioactivity and biocompatibility, but also to protect the surface of metallic implants against wear and corrosion.
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Affiliation(s)
- Masoud Mozafari
- Helmerich Advanced Technology Research Center, School of Materials Science and Engineering, Oklahoma State University, Tulsa, OK, USA
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