1
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Dorozhkin SV. Calcium Orthophosphate (CaPO4) Containing Composites for Biomedical Applications: Formulations, Properties, and Applications. JOURNAL OF COMPOSITES SCIENCE 2024; 8:218. [DOI: 10.3390/jcs8060218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The goal of this review is to present a wide range of hybrid formulations and composites containing calcium orthophosphates (abbreviated as CaPO4) that are suitable for use in biomedical applications and currently on the market. The bioactive, biocompatible, and osteoconductive properties of various CaPO4-based formulations make them valuable in the rapidly developing field of biomedical research, both in vitro and in vivo. Due to the brittleness of CaPO4, it is essential to combine the desired osteologic properties of ceramic CaPO4 with those of other compounds to create novel, multifunctional bone graft biomaterials. Consequently, this analysis offers a thorough overview of the hybrid formulations and CaPO4-based composites that are currently known. To do this, a comprehensive search of the literature on the subject was carried out in all significant databases to extract pertinent papers. There have been many formulations found with different material compositions, production methods, structural and bioactive features, and in vitro and in vivo properties. When these formulations contain additional biofunctional ingredients, such as drugs, proteins, enzymes, or antibacterial agents, they offer improved biomedical applications. Moreover, a lot of these formulations allow cell loading and promote the development of smart formulations based on CaPO4. This evaluation also discusses basic problems and scientific difficulties that call for more investigation and advancements. It also indicates perspectives for the future.
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Affiliation(s)
- Sergey V. Dorozhkin
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russia
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2
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Sampath V, Krishnasamy V. Synthesis and characterization of hydroxyapatite self-assembled nanocomposites on graphene oxide sheets from seashell waste: A green process for regenerative medicine. J Mech Behav Biomed Mater 2024; 151:106383. [PMID: 38218046 DOI: 10.1016/j.jmbbm.2024.106383] [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: 11/03/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 01/15/2024]
Abstract
Bone transplantation is the second most common transplantation surgery in the world. Therefore, there is an urgent need for artificial bone transplantation to repair bone defects. In bone tissue engineering, hydroxyapatite (HA) plays a major role in bone graft applications. This study deals with a facile method for synthesizing HA hexagonal nanorods from seashells by a solid-state hydrothermal transition process. The synthesized HA nanorods (∼2.29 nm) were reinforced with carbon nanotube and chitosan on graphene oxide sheets with polymeric support by in-situ synthetic approach. Among the synthesized nanocomposites viz., hydroxyapatite-graphene oxide (HA-GO), hydroxyapatite-graphene oxide-chitosan (HA-GO-CS), hydroxyapatite-graphene oxide-chitosan-carbon nanotube-polylactic acid (HA-GO-CS-CNT-PLA). Among them, the HA-GO-CS-CNT-PLA composite exhibits micro and macro porosity (∼200 to 600 μm), higher mechanical strength, (Hardness ∼90.5 ± 1.33 MPa; Tensile strength 25.62 MPa), and maximum cell viability in MG63 osteoblast-like cells (80%). The self-assembled hybrid-nanocomposite of HA-GO-CS-CNT-PLA is a promising material for bone filler application and could efficiently utilize seashell waste through the green process.
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Affiliation(s)
- VishnuPriya Sampath
- Department of Medical Neurobiology, Faculty of Medicine, The Institute for Medical Research, Israel-Canada, Hadassah Medical School, The Hebrew University of Jerusalem, Jerusalem, 9112102, Israel.
| | - Velmurugan Krishnasamy
- College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing - 211 100, China
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3
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Boyapati PCS, Srinivas K, Akhil S, Bollikolla HB, Chandu B. A Comprehensive Review on Novel Graphene‐Hydroxyapatite Nanocomposites For Potential Bioimplant Applications. ChemistrySelect 2023. [DOI: 10.1002/slct.202204585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
| | - Kolla Srinivas
- Dept. of Mechanical Engineering RVR & JC College of Engineering Guntur, Andhra Pradesh 522019 India
| | - Syed Akhil
- Dept. of Nanotechnology Acharya Nagarjuna University Guntur, Andhra Pradesh 522510 India
| | - Hari Babu Bollikolla
- Dept. of Chemistry Acharya Nagarjuna University Guntur, Andhra Pradesh 522510 India
| | - Basavaiah Chandu
- Dept. of Nanotechnology Acharya Nagarjuna University Guntur, Andhra Pradesh 522510 India
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4
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Baheti W, Lv S, Mila, Ma L, Amantai D, Sun H, He H. Graphene/hydroxyapatite coating deposit on titanium alloys for implant application. J Appl Biomater Funct Mater 2023; 21:22808000221148104. [PMID: 36633270 DOI: 10.1177/22808000221148104] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Titanium (Ti) implants are widely used in medicine. Meanwhile, surface modification of Ti can strengthen the osseointegration of implants. In this study, we modified Ti implant surfaces, which was coated with GO, HA, HA-2wt%GO and HA-5wt%GO via electrophoresis deposition, to investigate their mechanisms and biological activity. Uncoated Ti was used as the control. Further, we examined the biological behavior and osteogenic performance of mouse bone marrow mesenchymal stem cells (BMSCs) cultured on coatings in vitro. We found that the HA-GO nanocomposite coating improved the roughness and hydrophilicity of the Ti surface. Compared with the uncoated Ti or Ti modified by HA or GO alone, cell adhesion and diffusion were enhanced on HA-GO-modified Ti surfaces. In addition, the proliferation and osteogenic differentiation of BMSCs in vitro were significantly improved on HA-GO-modified surfaces, whereas osteogenesis-related gene expression and alkaline phosphatase activity were slightly enhanced. Furthermore, we noted that bone regeneration was improved in the HA-2wt%GO group in vivo. Thus, the HA-2wt%GO nanocomposite coating might have potential applications in the field of dental implants.
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Affiliation(s)
- Wufanbieke Baheti
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
| | - ShangYi Lv
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
| | - Mila
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
| | - Lisha Ma
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
| | - Dumanbieke Amantai
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
| | - Hao Sun
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
| | - HuiYu He
- Department of Prosthodontics, The Affiliated Stomatology Hospital of The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uyghur Autonomous Region, Urumqi, P.R. China.,Stomatological Research Institute of Xinjiang Uygur Autonomous Region, Urumqi, P.R. China
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5
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Nanohydroxyapatite/Titanate Nanotube Composites for Bone Tissue Regeneration. J Funct Biomater 2022; 13:jfb13040306. [PMID: 36547566 PMCID: PMC9786793 DOI: 10.3390/jfb13040306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 12/13/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Strategies for the production of new nanocomposites that promote bone tissue regeneration are important, particularly those that enhance the osteoinduction of hydroxyapatite in situ. Here, we studied and report the synthesis of nanohydroxyapatite and titanate nanotube (nHAp/TiNT) composites formulated at different concentrations (1, 2, 3, and 10 wt % TiNT) by means of a wet aqueous chemical reaction. The addition of TiNT affects the morphology of the nanocomposites, decreasing the average crystallite size from 54 nm (nHAp) to 34 nm (nHAp/TiNT10%), while confirming its interaction with the nanocomposite. The crystallinity index (CI) calculated by Raman spectroscopy and XRD showed that the values decreased according to the increase in TiNT concentration, which confirmed their addition to the structure of the nanocomposite. SEM images showed the presence of TiNTs in the nanocomposite. We further verified the potential cytotoxicity of murine fibroblast cell line L929, revealing that there was no remarkable cell death at any of the concentrations tested. In vivo regenerative activity was performed using oophorectomized animal (rat) models organized into seven groups containing five animals each over two experimental periods (15 and 30 days), with bone regeneration occurring in all groups tested within 30 days; however, the nHAp/TiNT10% group showed statistically greater tissue repair, compared to the untreated control group. Thus, the results of this study demonstrate that the presently formulated nHAp/TiNT nanocomposites are promising for numerous improved bone tissue regeneration applications.
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Du J, Zhou Y, Bao X, Kang Z, Huang J, Xu G, Yi C, Li D. Surface polydopamine modification of bone defect repair materials: Characteristics and applications. Front Bioeng Biotechnol 2022; 10:974533. [PMID: 35935489 PMCID: PMC9355039 DOI: 10.3389/fbioe.2022.974533] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 07/04/2022] [Indexed: 12/02/2022] Open
Abstract
Bone defects are a common challenge for clinical orthopedic surgeons. The existing bone defect repair materials are difficult to achieve satisfactory osseointegration between the material and the bone. Therefore, it is increasingly important to find effective methods to improve the integration of the materials with the bone and thus facilitate bone defect repair. Researchers have found that polydopamine (PDA) has a structure and properties similar to the adhesive proteins secreted by mussels in nature, with good biocompatibility, bioactivity, hydrophilicity, bio-adhesion and thermal stability. PDA is therefore expected to be used as a surface modification material for bone repair materials to improve the bonding of bone repair materials to the bone surface. This paper reviews research related to PDA-modified bone repair materials and looks at their future applications.
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Affiliation(s)
- Jianhang Du
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Ying Zhou
- Department of Rehabilitation, General Hospital of Chinese People’s Liberation Army, Beijing, China
| | - Xiaogang Bao
- Spine Center, Department of Orthopedics Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Zhanrong Kang
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Jianming Huang
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Guohua Xu
- Spine Center, Department of Orthopedics Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
- *Correspondence: Guohua Xu, ; Chengqing Yi, ; Dejian Li,
| | - Chengqing Yi
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
- *Correspondence: Guohua Xu, ; Chengqing Yi, ; Dejian Li,
| | - Dejian Li
- Department of Orthopedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
- *Correspondence: Guohua Xu, ; Chengqing Yi, ; Dejian Li,
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7
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Mischo J, Faidt T, McMillan RB, Dudek J, Gunaratnam G, Bayenat P, Holtsch A, Spengler C, Müller F, Hähl H, Bischoff M, Hannig M, Jacobs K. Hydroxyapatite Pellets as Versatile Model Surfaces for Systematic Adhesion Studies on Enamel: A Force Spectroscopy Case Study. ACS Biomater Sci Eng 2022; 8:1476-1485. [PMID: 35263544 PMCID: PMC9007113 DOI: 10.1021/acsbiomaterials.1c00925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 02/22/2022] [Indexed: 02/08/2023]
Abstract
Research into materials for medical application draws inspiration from naturally occurring or synthesized surfaces, just like many other research directions. For medical application of materials, particular attention has to be paid to biocompatibility, osseointegration, and bacterial adhesion behavior. To understand their properties and behavior, experimental studies with natural materials such as teeth are strongly required. The results, however, may be highly case-dependent because natural surfaces have the disadvantage of being subject to wide variations, for instance in their chemical composition, structure, morphology, roughness, and porosity. A synthetic surface which mimics enamel in its performance with respect to bacterial adhesion and biocompatibility would, therefore, facilitate systematic studies much better. In this study, we discuss the possibility of using hydroxyapatite (HAp) pellets to simulate the surfaces of teeth and show the possibility and limitations of using a model surface. We performed single-cell force spectroscopy with single Staphylococcus aureus cells to measure adhesion-related parameters such as adhesion force and rupture length of cell wall proteins binding to HAp and enamel. We also examine the influence of blood plasma and saliva on the adhesion properties of S. aureus. The results of these measurements are matched to water wettability, elemental composition of the samples, and the change in the macromolecules adsorbed over time on the surface. We found that the adhesion properties of S. aureus were similar on HAp and enamel samples under all conditions: Significant decreases in adhesion strength were found equally in the presence of saliva or blood plasma on both surfaces. We therefore conclude that HAp pellets are a good alternative for natural dental material. This is especially true when slight variations in the physicochemical properties of the natural materials may affect the experimental series.
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Affiliation(s)
- Johannes Mischo
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Thomas Faidt
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Ryan B. McMillan
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Johanna Dudek
- Clinic
of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, 66421 Homburg/Saar, Germany
| | - Gubesh Gunaratnam
- Institute
of Medical Microbiology and Hygiene and Center for Biophysics, Saarland University, 66421 Homburg/Saar, Germany
| | - Pardis Bayenat
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Anne Holtsch
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Christian Spengler
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Frank Müller
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Hendrik Hähl
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
| | - Markus Bischoff
- Institute
of Medical Microbiology and Hygiene and Center for Biophysics, Saarland University, 66421 Homburg/Saar, Germany
| | - Matthias Hannig
- Clinic
of Operative Dentistry, Periodontology and Preventive Dentistry, Saarland University, 66421 Homburg/Saar, Germany
| | - Karin Jacobs
- Experimental
Physics and Center for Biophysics, Saarland
University, 66123 Saarbrücken, Germany
- Max
Planck School Matter to Life, Jahnstraße 29, 69120 Heidelberg, Germany
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8
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Dalili F, Aghdam RM, Soltani R, Saremi M. Corrosion, mechanical and bioactivity properties of HA-CNT nanocomposite coating on anodized Ti6Al4V alloy. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2022; 33:34. [PMID: 35347447 PMCID: PMC8960600 DOI: 10.1007/s10856-022-06655-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/15/2022] [Indexed: 06/14/2023]
Abstract
Hydroxyapatite-carbon nanotubes (HA-CNTs) nanocomposite coating was applied by electrophoretic method on anodized Ti alloy to investigate its stability in simulated body fluid (SBF). The biocoating was characterized by using scanning electron microscope (SEM) for microstructure, X-ray diffraction (XRD) for crystallography. The effect of CNTs concentration on the coating properties was also investigated and found out that CNTs up to 5% has various improving effect on the system. It increased corrosion resistance and adhesion of the coating to the substrate and decreased the number of cracks on the coating. The results of the in vitro test showed that the cell viability increased with increasing the concentration of CNTs to 3 wt.% CNTs. Graphical abstract.
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Affiliation(s)
- Faezeh Dalili
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran
| | - Rouhollah Mehdinavaz Aghdam
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran.
| | - Reza Soltani
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran
| | - Mohsen Saremi
- School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box: 11155-4563, Tehran, Iran.
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9
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Jagadeeshanayaka N, Awasthi S, Jambagi SC, Srivastava C. Bioactive Surface Modifications through Thermally Sprayed Hydroxyapatite Composite Coatings: A Review over Selective Reinforcements. Biomater Sci 2022; 10:2484-2523. [DOI: 10.1039/d2bm00039c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroxyapatite (HA) has been an excellent replacement for the natural bone in orthopedic applications, owing to its close resemblance; however, it is brittle and has low strength. Surface modification techniques...
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10
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Baghdadi I, AbuTarboush BJ, Zaazou A, Skienhe H, Özcan M, Zakhour M, Salameh Z. Investigation of the structure and compressive strength of a bioceramic root canal sealer reinforced with nanomaterials. J Appl Biomater Funct Mater 2021; 19:22808000211014747. [PMID: 34283662 DOI: 10.1177/22808000211014747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES A root canal sealer that can increase the resistance of endodontically treated teeth to compressive strength would be of great advantage. The purpose of this study is to use three different nanoparticles: multi-walled carbon nanotubes (MWCNTs), Titanium carbides (TC), and Boron nitrides (BN) into a bioceramic adhesive root canal sealer; BioRoot™ RCS, in an attempt to improve its structural and compressive strength properties. METHODS Three composites of two weight fractions (1- and 2-wt.%) were produced by mixing each nanomaterial separately with a pre-weighed mass of Bioroot powder. The microstructural properties and compressive strength of the different hardened composites obtained were investigated. The composites have been characterized by X-ray Diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. Compression testing was performed. RESULTS The 1-wt.% composites, Bioroot/MWCNTs, and Bioroot/TC, except for the one reinforced with BN, displayed a significant improvement in the compressive strength compared to pristine BioRoot™ RCS. The 2-wt.% composites showed no significant improvement in the compressive strength. CONCLUSION The addition of 1-wt.% MWCNTs and TC nanomaterials can be considered in the future for enhancing the microstructure and compressive strength properties of pristine BioRoot™ RCS.
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Affiliation(s)
- Inaam Baghdadi
- Doctorate School of Science and Technology, Lebanese University, Beirut, Lebanon.,Department of Endodontics, School of Dentistry, Beirut Arab University, Beirut, Lebanon
| | - Belal J AbuTarboush
- Department of Endodontics, School of Dentistry, King Abdel Aziz University, Jeddah, Kingdom of Saudi Arabia.,Conservative Dentistry Department, Faculty of Dentistry, Alexandria University
| | - Ashraf Zaazou
- Petroleum and Chemical Engineering Department, Sultan Qaboos University, Muscat 123, Oman.,Department of Chemical Engineering and Advanced Energy, American University of Beirut, Beirut, Lebanon
| | - Hasan Skienhe
- Department of Prosthodontic, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
| | - Mutlu Özcan
- Division of Dental Biomaterials, University of Zürich, Clinic for Reconstructive Dentistry, Zurich, Switzerland
| | - Mirvat Zakhour
- Laboratory of Physical Chemistry of Materials (LCPM), Faculty of Sciences, Lebanese University, Beirut, Lebanon
| | - Ziad Salameh
- Research Center, Faculty of Dental Medicine, Lebanese University, Beirut, Lebanon
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11
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Photoluminescent Properties of Hydroxyapatite and Hydroxyapatite/Multi-Walled Carbon Nanotube Composites. CRYSTALS 2021. [DOI: 10.3390/cryst11070832] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hydroxyapatite (HAp) and hydroxyapatite/multi-walled carbon nanotube (MWCNT) composites were obtained by the co-precipitation method, followed by ultrasound-assisted and microwave radiation and thermal treatment at 250 °C. X-ray diffraction (XRD) confirmed the presence of a hexagonal phase in all the samples, while Fourier-transform infrared (FTIR) spectroscopy elucidated the interaction between HAp and MWCNTs. The photoluminescent technique revealed that HAp and the composite with non-functionalized MWCNTs present a blue luminescence, while the composite with functionalized MWCNTs, under UV-vis radiation shows an intense white emission. These findings allowed presentation of a proposal for the use of HAp and HAp with functionalized MWCNTs as potential materials for optoelectronic and medical applications.
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12
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Yigit O, Dikici B, Ozdemir N. Hydrothermal synthesis of nanocrystalline hydroxyapatite-graphene nanosheet on Ti-6Al-7Nb: mechanical and in vitro corrosion performance. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:40. [PMID: 33792780 PMCID: PMC8016802 DOI: 10.1007/s10856-021-06514-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 03/17/2021] [Indexed: 06/12/2023]
Abstract
The hybrid coatings containing the graphene nano-sheet (GNS) and nano-hydroxyapatite (nHA) phases have been successfully synthesized on Ti6Al7Nb alloys by a one-step hydrothermal method. The hydrothermal reaction was carried out for 24 h at 200 °C. The GNS ratio has been altered as 1, 3, 5 and 7 wt.% in the coatings and, the results have compared with non- GNS containing coatings. The effect of the GNS ratio on the microstructure, hardness, and in vitro corrosion responses has been investigated in detail. The characterizations of the coatings were carried out by SEM, EDS, AFM, XRD and, FTIR. The corrosion behavior of the hybrid coatings was compared in Kokubo's solution at 37 °C by using potentiodynamic polarization tests. The results showed that the hydroxyapatite phases were deposed on the graphene layers with nano-size nucleation with its Ca/P stoichiometric ratio. The best hydrophilicity (~52°) property has been obtained in nHA/3GNS coatings. In addition, the corrosion rates of coatings increased in the following order: nHA/3GNS < nHA/1GNS < nHA/7GNS < nHA/5GNS < only nHA.
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Affiliation(s)
- Oktay Yigit
- Firat University, Department of Metallurgical and Materials Engineering, Elazig, 23119, Turkey
| | - Burak Dikici
- Ataturk University, Department of Metallurgical and Materials Engineering, Erzurum, 25240, Turkey.
| | - Niyazi Ozdemir
- Firat University, Department of Metallurgical and Materials Engineering, Elazig, 23119, Turkey
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13
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Prakash VCA, Venda I, Thamizharasi V, Sathya E. Influence of DMSO-Sr on the Synthesis of Hydroxyapatite by Hydrothermal Coupled Microemulsion Method. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-020-01723-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Naseri H, Ghatee M, Yazdani A, Mohammadi M, Manafi S. Characterization of the 3YSZ/CNT/HAP coating on the Ti6Al4V alloy by electrophoretic deposition. J Biomed Mater Res B Appl Biomater 2021; 109:1395-1406. [PMID: 33484113 DOI: 10.1002/jbm.b.34799] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/05/2021] [Accepted: 01/09/2021] [Indexed: 11/10/2022]
Abstract
In this article, the effects of the simultaneous addition of the 3 mol % yttria-stabilized zirconia (3YSZ) and carbon nanotubes (CNTs) reinforcements on different properties of the natural hydroxyapatite (HAP) coating were studied. The electrophoretic deposition (EPD) process was implemented to prepare thin coatings on the Ti6Al4V substrate. The coatings were then sintered at 1000 ° C under vacuum for 2 hr and the mechanical properties of them were studied by the nano-indentation method. The microsture and phase content of the coatings were investigated by the scanning electron microscope and X-ray diffraction methods, respectively. The electrochemical properties of the samples were studied by potentiodynamic polarization and electrochemical impedance spectroscopy. The biocompatibility of the coatings was evaluated by the MTT test under standard conditions. It was found that the proper voltage and duration for the deposition of the coatings were 20 V and 4 min, while the longer deposition time of up to 6 min. Was tolerable in the coatings containing 5 wt % of the CNTs. The hardness and Young's modulus of the coatings were improved significantly by the siumultaneous addition of 3YSZ and CNTs, but the effect of nanotubes was more prominent. It was also found that the composite coating had marginally lower biocompatibility, as compared to the natural HAP, which was probably due to their lower roughness. The corrosion resistance of the HAP was not affected by the presence of 3YSZ particles, while the addition of CNTs improved the corrosion resistance of the coatings.
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Affiliation(s)
- Hadi Naseri
- Department of Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
| | - Mojtaba Ghatee
- Department of Materials Science and Engineering, Shahrood University of Technology, Shahrood, Iran
| | - Arash Yazdani
- Department of Materials Science and Engineering, Shahrood University of Technology, Shahrood, Iran
| | - Majid Mohammadi
- Department of Materials Science and Engineering, Shahrood University of Technology, Shahrood, Iran
| | - Sahebali Manafi
- Department of Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran
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15
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Li H, Sun X, Li Y, Wang H, Li B, Liang C. Carbon nanotube-collagen@hydroxyapatite composites with improved mechanical and biological properties fabricated by a multi in situ synthesis process. Biomed Microdevices 2020; 22:64. [PMID: 32897447 DOI: 10.1007/s10544-020-00520-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A novel carbon nanotube-collagen@hydroxyapatite (CNT-Col@HA) composite with good mechanical and biological properties was fabricated successfully by a multi in situ synthesis process, which can be used to repair or replace the damaged bone tissues. The carbon nanotube (CNT)/hydroxyapatite (HA) composite powders were firstly synthesized by the in situ chemical vapor deposition method. After the acidification of CNTs, the collagen (Col) molecules were covalently grafted onto the surface of CNTs in situ by the formation of amide linkages, obtaining Col-encapsulated CNTs powders. And then, a HA layer was deposited in situ onto the Col-encapsulated CNTs to form HA- and Col-encapsulated CNTs, consequently the ideal CNT-Col@HA composite was fabricated by the powder metallurgy method, and its mechanical and biological properties were investigated. The results showed that, the multi in situ synthesis process ensured the homogeneous dispersion of CNTs in HA matrix, and via the intermediate layer of Col, the close chemical bonding between CNT reinforcements and HA matrix was obtained, thereby the flexural strength and fracture toughness of the in situ synthesized 3 wt.% CNT-Col@HA composite were increased by approximately 74.2% and 274.6% compared with those of pure HA bulk, and better cell adhesion, spreading and proliferation were also observed on the in situ synthesized CNT-Col@HA composites. Therefore, the obtained composites in this work have great potential to be applied as implant material in clinic.
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Affiliation(s)
- Haipeng Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, China
- Research Institute for Energy Equipment Materials, Hebei University of Technology, Tianjin, 300130, China
| | - Xiwen Sun
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, China
| | - Yuanjun Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, China
| | - Hongshui Wang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, China
| | - Baoe Li
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, China.
| | - Chunyong Liang
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin, 300130, China.
- Research Institute for Energy Equipment Materials, Hebei University of Technology, Tianjin, 300130, China.
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Enhanced Scratch Performance of Plasma Sprayed Hydroxyapatite Composite Coatings Reinforced with BN Nanoplatelets. COATINGS 2020. [DOI: 10.3390/coatings10070652] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In recent years, research on hydroxyapatite (HA) coatings has been driven by the demands of clinical applications. However, the intrinsic brittleness of HA limits its potential in the use for the load-bearing implant. To improve mechanical properties of the HA coating itself, a HA composite coating reinforced with hexagonal boron nitride nanoplatelets (BNNP) was fabricated using plasma spray, and its scratch behavior was investigated in this research. Typical brittle fractures such as microcracks both in and beyond the residual groove and material chipping were observed in the HA coating, while stronger and tougher BNNP/HA coatings exhibited a dominant role in protecting them from scratch damage through resisting plastic deformation and brittle microfracturing. Moreover, easier grain sliding within a splat and splat sliding at the splat boundaries due to the presence of BNNPs, and the nature porosity at different length scales of the as-sprayed HA composite coatings would provide significant self-lubricating effects to reduce the lateral force during scratching and alleviate the contact damage. Therefore, the addition of BNNPs renders HA coating with low scratch friction and enhanced tolerance to surface damage, which is naturally beneficial for the long-term durability and reliability of the implants.
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Nosrati H, Sarraf-Mamoory R, Le DQS, Zolfaghari Emameh R, Canillas Perez M, Bünger CE. Improving the mechanical behavior of reduced graphene oxide/hydroxyapatite nanocomposites using gas injection into powders synthesis autoclave. Sci Rep 2020; 10:8552. [PMID: 32444676 PMCID: PMC7244769 DOI: 10.1038/s41598-020-64928-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/24/2020] [Indexed: 11/09/2022] Open
Abstract
In this study, we show the synthesis of reduced graphene oxide/hydroxyapatite (rGO/HA) composites using a hydrothermal autoclave with argon-15% hydrogen gas injection. This both increases the hydrothermal pressure and uses hydrogen as a reductive agent in the process. The synthesized powders were then consolidated with spark plasma sintering method. The analysis of the consolidated samples included Vickers Indentation technique and cell viability. The results showed that injected gases in the autoclave produced powders with a higher crystallinity compared to synthesis without the gases. Also, hydrogen gas led to increased reduction of GO. The microscopic analysis confirmed existing graphene sheets with folding and wrinkling in the powders and indicated that various preferential directions played a role in the growth of hydroxyapatite crystals. The results showed that in general, graphene sheets increased the mechanical properties of HA. In the samples synthesized with injected gases, this increase was more significant. Interface analysis results indicate that reduced graphene oxide (rGO)/HA interface is likely coherent. These nanocomposites were biocompatible and showed some hydrophobicity compared to pure HA.
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Affiliation(s)
- Hassan Nosrati
- Department of Materials Engineering, Tarbiat Modares University, Tehran, Iran
| | | | | | - Reza Zolfaghari Emameh
- Department of Energy and Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), 14965/161, Tehran, Iran
| | | | - Cody Eric Bünger
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
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Electrodeposition of Hydroxyapatite-Multiwalled Carbon Nanotube Nanocomposite on Ti6Al4V. ADVANCES IN POLYMER TECHNOLOGY 2020. [DOI: 10.1155/2020/8639687] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
This work aims to study the optimal conditions to synthesize hydroxyapatite-multiwalled carbon nanotube (HAp-MWCNT) coatings on Ti6Al4V by electrodeposition technique. The structural behaviors, morphology, and mechanical properties of the coatings were characterized by various advanced methods. The analyzed results showed that the obtained coatings were composed of hydroxyapatite (HAp) and multiwalled carbon nanotube (MWCNT) phases. The presence of MWCNTs in the HAp-MWCNT composite, which improved adhesion between the coatings and the substrate about 2.3 times, increased 20% of hardness and decreased about 40% the solubility of HAp-MWCNTs/Ti6Al4V in comparison with pure HAp coating on Ti6Al4V.
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C60 fullerene loaded hydroxyapatite-chitosan beads as a promising system for prolonged drug release. Carbohydr Polym 2019; 223:115067. [DOI: 10.1016/j.carbpol.2019.115067] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 06/18/2019] [Accepted: 07/06/2019] [Indexed: 11/20/2022]
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20
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Comparison of Properties of the Hybrid and Bilayer MWCNTs—Hydroxyapatite Coatings on Ti Alloy. COATINGS 2019. [DOI: 10.3390/coatings9100643] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Carbon nanotubes are proposed for reinforcement of the hydroxyapatite coatings to improve their adhesion, resistance to mechanical loads, biocompatibility, bioactivity, corrosion resistance, and antibacterial protection. So far, research has shown that all these properties are highly susceptible to the composition and microstructure of coatings. The present research is aimed at studies of multi-wall carbon nanotubes in three different combinations: multi-wall carbon nanotubes layer, bilayer coating composed of multi-wall carbon nanotubes deposited on nanohydroxyapatite deposit, and hybrid coating comprised of simultaneously deposited nanohydroxyapatite, multi-wall carbon nanotubes, nanosilver, and nanocopper. The electrophoretic deposition method was applied for the fabrication of the coatings. Atomic force microscopy, scanning electron microscopy and X-ray electron diffraction spectroscopy, and measurements of water contact angle were applied to study the chemical and phase composition, roughness, adhesion strength and wettability of the coatings. The results show that the pure multi-wall carbon nanotubes layer possesses the best adhesion strength, mechanical properties, and biocompatibility. Such behavior may be attributed to the applied deposition method, resulting in the high hardness of the coating and high adhesion of carbon nanotubes to the substrate. On the other hand, bilayer coating, and hybrid coating demonstrated insufficient properties, which could be the reason for the presence of soft porous hydroxyapatite and some agglomerates of nanometals in prepared coatings.
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Heat and hydrothermal treatments on the microstructure evolution and mechanical properties of plasma sprayed hydroxyapatite coatings reinforced with graphene nanoplatelets. J Mech Behav Biomed Mater 2019; 101:103418. [PMID: 31514055 DOI: 10.1016/j.jmbbm.2019.103418] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 11/21/2022]
Abstract
Recent demands in clinical applications drive a large amount of research to plasma sprayed hydroxyapatite (HA) composite coatings. Herein, graphene nanosheet (GNS) reinforced HA coating was fabricated using plasma spray, the effect of heat and hydrothermal treatments (hereafter referred to as thermal treatment) on microstructural evolution and mechanical properties of the composite coating were investigated. Thermally treated GNS/HA coating not only exhibited ~47.1% improvement in HA crystallinity and more denser microstructure, but also displayed increased surface roughness (3 times of that of the as-sprayed sample) due to the fact that GNSs facilitated HA nanoparticle precipitation on the coating surface. Fracture toughness of the as-sprayed HA coating increased by up to ~44.1% at 2.0 wt% GNSs owing to GNS pullout, GNS bridging and arresting of crack propagation by the embedded GNSs. As for thermally treated HA coatings, crack propagation arrested by the sintered regions was found to act as an important toughening mechanism, but thermal treatment introduced more structural defects into the GNSs and led to the reductions in their length and thickness, resulting in negligible enhancement in toughness of the GNS/HA coating.
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Ofudje EA, Adeogun AI, Idowu MA, Kareem SO. Synthesis and characterization of Zn-Doped hydroxyapatite: scaffold application, antibacterial and bioactivity studies. Heliyon 2019; 5:e01716. [PMID: 31193510 PMCID: PMC6531666 DOI: 10.1016/j.heliyon.2019.e01716] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 04/16/2019] [Accepted: 05/09/2019] [Indexed: 12/25/2022] Open
Abstract
In this study, the antimicrobial and scaffold of zinc-substituted hydroxyapatite, (Zn-HAp) synthesized via chemical co-precipitation technique was investigated. The structure of the synthesized Zn-HAp was investigated with X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Scanning electron microscope (SEM), Energy dispersive X-spectroscopy (EDAX), transmission electron microscope (TEM), Thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). Bioactivity study was performed in simulated body fluid (SBF), while the antimicrobial activity was studied using disc diffusion method. The XRD structure revealed that Zn ion incorporation up to 10% led to the second phase hydroxyapatite (HAp) formation, while higher concentration diminished the apatite structure. The presence of phosphate ions, carbonates ions, and hydroxyl groups in the apatite powder was ascertained by the FT-IR evaluation. SEM evaluation showed that the apatite contains fine particles with nearly round shape with interconnected pores and decreasing Ca/P ratio with increasing Zn ion concentration. TEM results showed particulate polycrystalline apatite with crystallite size ranging from 68 nm in pure HAp to 41 nm in 20% Zn-doped HAp indicating a decrease in the crystal size with increasing Zn ion in the samples. The bioactivity study showed spherical deposition around the porous region of the scaffold HAp suggesting the growth of apatite in SBF media after 7 days of incubation, while antibacterial activity studies showed zones of inhibition with an increase in zinc ions concentrations.
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Affiliation(s)
- Edwin Andrew Ofudje
- Department of Chemical Sciences, Mountain Top University, Ibafo, Nigeria
- Department of Chemistry, Federal University of Agriculture, Abeokuta, Nigeria
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Aguirre TG, Cramer CL, Torres VP, Hammann TJ, Holland TB, Ma K. Effects of the addition of boron nitride nanoplate on the fracture toughness, flexural strength, and Weibull Distribution of hydroxyapatite composites prepared by spark plasma sintering. J Mech Behav Biomed Mater 2019; 93:105-117. [DOI: 10.1016/j.jmbbm.2019.01.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 01/17/2019] [Accepted: 01/18/2019] [Indexed: 10/27/2022]
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Arul Xavier S, U V. Electrochemically grown functionalized -Multi-walled carbon nanotubes/hydroxyapatite hybrids on surgical grade 316L SS with enhanced corrosion resistance and bioactivity. Colloids Surf B Biointerfaces 2018; 171:186-196. [PMID: 30031303 DOI: 10.1016/j.colsurfb.2018.06.058] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 05/28/2018] [Accepted: 06/27/2018] [Indexed: 01/19/2023]
Abstract
Coatings using functionalized multi-walled carbon nanotubes (f-MWCNTs)/hydroxyapatite (HAP) on 316 L Stainless Steel by electrodeposition at the parameter of "-1.5 V" for 30 min. with three electrode set-up configuration and optimization of various concentrations of f-MWCNTs from 1 to 5% were done to improve the coating characteristics for future biomedical applications. The obtained coatings were characterized by Fourier Transformed-Infra Red spectroscopy (FT-IR) and X-ray diffractometer (XRD) to reveal the phase formation in the composites. With various additions of f-MWCNTs, the HAP phase was found to be retained. The growth of HAP on f-MWCNTs was analyzed by High-resolution Transmission Electron Microscope (HR-TEM) and the morphology of composite was found to be of the needle and flower-like particles. To understand the corrosion resistance effect of the developed HAP/f-MWCNTs composite in SBF, electrochemical investigations were carried out using Impedance and Tafel polarization analysis. From the results, it was observed that the coatings have enhanced corrosion resistance behavior and bioactivity. In addition, the Vickers Hardness study proved that the prepared HAP/fMWCNTs composite coating was found to have improved hardness value of (Hv) 390.2 ± 8.0. Thus, the electrodeposited composite coating on 316 L SS substrate can be effectively deployed for biomedical applications.
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Affiliation(s)
- Stango Arul Xavier
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, 632 014. Tamil Nadu, India
| | - Vijayalakshmi U
- Department of Chemistry, School of Advanced Sciences, VIT University, Vellore, 632 014. Tamil Nadu, India.
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Improved dispersion of SiC whisker in nano hydroxyapatite and effect of atmospheres on sintering of the SiC whisker reinforced nano hydroxyapatite composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 91:135-145. [PMID: 30033240 DOI: 10.1016/j.msec.2018.05.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 04/03/2018] [Accepted: 05/02/2018] [Indexed: 11/20/2022]
Abstract
In order to improve the mechanical properties of nano hydroxyapatite (HA), silicon carbide whisker (SiCw) with excellent mechanical and biological properties was used as the reinforcement for SiC whisker reinforced nano hydroxyapatite (SiCw/HA) composites. Hydrothermal synthesis method was adopted to prepare the uniformly dispersed SiCw and HA composite powders, and SiCw/HA composites were fabricated by pressureless sintering. The interfacial bonding state and mechanical properties of SiCw/HA composites in different sintering atmospheres (air and N2) were systematically investigated. The results show that the uniformity of the composite powders decreases with the increase of SiCw content, and the cross-section of SiCw/HA composites gradually changes from glossy and smooth to rough and undulate. When the content of SiCw is 15 wt%, the maximum bending strength and fracture toughness of the composites sintered in air atmosphere (HAW15) are 40.85 MPa and 1.82 MPa·m1/2 respectively, which are higher than those of pure HA. Compared with those of the SiCw/HA composites sintered in N2 atmosphere, the bending strength and fracture toughness of the HAW15 composites are increased by 154.2% and 10.3%, respectively. Moreover, Simulated body fluid (SBF) and in vitro cell behavior tests indicate that the SiCw/HA composites still have excellent bioactivity. The possible strengthening and toughening mechanisms of SiCw/HA composites are that the dispersion of SiCw in HA matrix is improved by hydrothermal process, and the interfacial bonding property is enhanced because of the reaction fusion on interface of SiCw/HA composites during sintering in air atmosphere. The adoption of hydrothermal process improves the dispersion uniformity of SiCw in HA matrix. When sintering in air atmosphere, the interfacial bonding property of SiCw/HA composite is enhanced via the reaction fusion (SiO2 is formed by the oxidation of SiCw). Both of them lead to the increase of strength and toughness of the composites. This study would provide additional insights into the feasibility of SiCw/HA composites as load-bearing implant materials in orthopedic applications.
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Afroze J, Abden M, Islam M. An efficient method to prepare magnetic hydroxyapatite–functionalized multi-walled carbon nanotubes nanocomposite for bone defects. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018. [DOI: 10.1016/j.msec.2018.02.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Nautiyal P, Alam F, Balani K, Agarwal A. The Role of Nanomechanics in Healthcare. Adv Healthc Mater 2018; 7. [PMID: 29193838 DOI: 10.1002/adhm.201700793] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 09/18/2017] [Indexed: 12/21/2022]
Abstract
Nanomechanics has played a vital role in pushing our capability to detect, probe, and manipulate the biological species, such as proteins, cells, and tissues, paving way to a deeper knowledge and superior strategies for healthcare. Nanomechanical characterization techniques, such as atomic force microscopy, nanoindentation, nanotribology, optical tweezers, and other hybrid techniques have been utilized to understand the mechanics and kinetics of biospecies. Investigation of the mechanics of cells and tissues has provided critical information about mechanical characteristics of host body environments. This information has been utilized for developing biomimetic materials and structures for tissue engineering and artificial implants. This review summarizes nanomechanical characterization techniques and their potential applications in healthcare research. The principles and examples of label-free detection of cancers and myocardial infarction by nanomechanical cantilevers are discussed. The vital importance of nanomechanics in regenerative medicine is highlighted from the perspective of material selection and design for developing biocompatible scaffolds. This review interconnects the advancements made in fundamental materials science research and biomedical technology, and therefore provides scientific insight that is of common interest to the researchers working in different disciplines of healthcare science and technology.
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Affiliation(s)
- Pranjal Nautiyal
- Nanomechanics and Nanotribology Laboratory Florida International University 10555 West Flagler Street Miami FL 33174 USA
| | - Fahad Alam
- Biomaterials Processing and Characterization Laboratory Department of Materials Science and Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Kantesh Balani
- Biomaterials Processing and Characterization Laboratory Department of Materials Science and Engineering Indian Institute of Technology Kanpur Kanpur 208016 India
| | - Arvind Agarwal
- Nanomechanics and Nanotribology Laboratory Florida International University 10555 West Flagler Street Miami FL 33174 USA
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Mechanical, corrosion and biocompatibility behaviour of Mg-3Zn-HA biodegradable composites for orthopaedic fixture accessories. J Mech Behav Biomed Mater 2018; 78:442-454. [DOI: 10.1016/j.jmbbm.2017.11.030] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 10/06/2017] [Accepted: 11/20/2017] [Indexed: 11/20/2022]
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Fabrication and in vivo evaluation of hydroxyapatite/carbon nanotube electrospun fibers for biomedical/dental application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 80:387-396. [DOI: 10.1016/j.msec.2017.05.109] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 05/16/2017] [Indexed: 12/14/2022]
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30
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Electrophoretic deposition of hydroxyapatite-hexagonal boron nitride composite coatings on Ti substrate. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.023] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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31
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Azarniya A, Sovizi S, Azarniya A, Rahmani Taji Boyuk MR, Varol T, Nithyadharseni P, Madaah Hosseini HR, Ramakrishna S, Reddy MV. Physicomechanical properties of spark plasma sintered carbon nanotube-containing ceramic matrix nanocomposites. NANOSCALE 2017; 9:12779-12820. [PMID: 28832057 DOI: 10.1039/c7nr01878a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recently, a wide variety of research works have focused on carbon nanotube (CNT)-ceramic matrix nanocomposites. In many cases, these novel materials are produced through conventional powder metallurgy methods including hot pressing, conventional sintering, and hot isostatic pressing. However, spark plasma sintering (SPS) as a novel and efficient consolidation technique is exploited for the full densification of high-temperature ceramic systems. In these binary nanocomposites, CNTs are added to ceramic matrices to noticeably modify their inferior properties and SPS is employed to produce fully dense compacts. In this review, a broad overview of these systems is provided and the potential influences of CNTs on their functional and structural properties are addressed. The technical challenges are then mentioned and the ongoing debates over overcoming these drawbacks are fully highlighted. The structural classification used is material-oriented. It helps the readers to easily find the material systems of interest. The SPSed CNT-containing ceramic matrix nanocomposites are generally categorized into four main classes: CNT-oxide systems; CNT-nitride systems, CNT-carbide systems, and CNT-boride systems. A large number of original curves and bubble maps are provided to fully summarize the experimental results reported in the literature. They pave the way for obviously selecting the ceramic systems required for each industrial application. The properties in consideration include the relative density, hardness, yield strength, fracture toughness, electrical and thermal conductivities, modulus, and flexural strength. These unique graphs facilitate the comparison between reported results and help the reader to easily distinguish the best method for producing the ceramic systems of interest and the optimal conditions under which the superior properties can be reached. The authors have concentrated on the microstructure evolution-physicomechanical property relationship and tried to relate each property to pertinent microstructural phenomena and address why the properties are degraded or enhanced with the variation of SPS conditions or material parameters.
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Affiliation(s)
- Abolfazl Azarniya
- Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11155-9466, Azadi Avenue, Tehran, Iran.
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Babaei A, Afrasiabi M, Shabanian M. Application of multivariate optimization method in nanomolar simultaneous determination of morphine and codeine in the presence of uric acid using a glassy carbon electrode modified with a hydroxyapatite-Fe3O4 nanoparticle/multiwalled carbon nanotubes composite. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1167-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rizwan M, Hamdi M, Basirun WJ. Bioglass® 45S5-based composites for bone tissue engineering and functional applications. J Biomed Mater Res A 2017; 105:3197-3223. [DOI: 10.1002/jbm.a.36156] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/02/2017] [Accepted: 07/03/2017] [Indexed: 12/13/2022]
Affiliation(s)
- M. Rizwan
- Department of Mechanical Engineering; Faculty of Engineering, University of Malaya; Kuala Lumpur 50603 Malaysia
- Department of Metallurgical Engineering; Faculty of Chemical and Process Engineering, NED University of Engineering and Technology; Karachi 75270 Pakistan
| | - M. Hamdi
- Center of Advanced Manufacturing and Material Processing, University of Malaya; Kuala Lumpur 50603 Malaysia
| | - W. J. Basirun
- Department of Chemistry; Faculty of Science, University of Malaya; Kuala Lumpur 50603 Malaysia
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Han S, Ning Z, Chen K, Zheng J. Preparation and tribological properties of Fe-hydroxyapatite bioceramics. BIOSURFACE AND BIOTRIBOLOGY 2017. [DOI: 10.1016/j.bsbt.2017.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Liu S, Li H, Su Y, Guo Q, Zhang L. Preparation and properties of in-situ growth of carbon nanotubes reinforced hydroxyapatite coating for carbon/carbon composites. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:805-811. [DOI: 10.1016/j.msec.2016.09.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 08/11/2016] [Accepted: 09/26/2016] [Indexed: 11/24/2022]
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Abden M, Afroze J, Alam M, Bahadur N. Pressureless sintering and mechanical properties of hydroxyapatite/functionalized multi-walled carbon nanotube composite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:418-424. [DOI: 10.1016/j.msec.2016.05.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 04/17/2016] [Accepted: 05/05/2016] [Indexed: 11/28/2022]
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Czikó M, Bogya ES, Paizs C, Katona G, Konya Z, Kukovecz Á, Barabás R. Albumin adsorption study onto hydroxyapatite-multiwall carbon nanotube based composites. MATERIALS CHEMISTRY AND PHYSICS 2016. [DOI: 10.1016/j.matchemphys.2016.06.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Komur B, Lohse T, Can HM, Khalilova G, Geçimli ZN, Aydoğdu MO, Kalkandelen C, Stan GE, Sahin YM, Sengil AZ, Suleymanoglu M, Kuruca SE, Oktar FN, Salman S, Ekren N, Ficai A, Gunduz O. Fabrication of naturel pumice/hydroxyapatite composite for biomedical engineering. Biomed Eng Online 2016; 15:81. [PMID: 27388324 PMCID: PMC4937607 DOI: 10.1186/s12938-016-0203-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 06/22/2016] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND We evaluated the Bovine hydroxyapatite (BHA) structure. BHA powder was admixed with 5 and 10 wt% natural pumice (NP). Compression strength, Vickers micro hardness, Fourier transform infrared spectroscopy, scanning electron microscopy (SEM) and X-ray diffraction studies were performed on the final NP-BHA composite products. The cells proliferation was investigated by MTT assay and SEM. Furthermore, the antimicrobial activity of NP-BHA samples was interrogated. RESULTS Variances in the sintering temperature (for 5 wt% NP composites) between 1000 and 1300 °C, reveal about 700 % increase in the microhardness (~100 and 775 HV, respectively). Composites prepared at 1300 °C demonstrate the greatest compression strength with comparable result for 5 wt% NP content (87 MPa), which are significantly better than those for 10 wt% and those that do not include any NP (below 60 MPa, respectively). CONCLUSION The results suggested the optimal parameters for the preparation of NP-BHA composites with increased mechanical properties and biocompatibility. Changes in micro-hardness and compression strength can be tailored by the tuning the NP concentration and sintering temperature. NP-BHA composites have demonstrated a remarkable potential for biomedical engineering applications such as bone graft and implant.
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Affiliation(s)
- Baran Komur
- />Orthopaedics and Traumatology Department, Kanuni Sultan Suleyman Training and Research Hospital, Kucukcekmece, Halkali, 34303 Istanbul, Turkey
| | - Tim Lohse
- />Faculty of Engineering, Institute for Materials Science, Christian-Albrechts-University Kiel, 24143 Kiel, Germany
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Hatice Merve Can
- />Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul, Turkey
- />Department of Pharmaceutical Biotechnology, Institute of Health Sciences, Marmara University, Istanbul, Turkey
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Gulnar Khalilova
- />Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul, Turkey
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Zeynep Nur Geçimli
- />Department of Industrial Product Design, Bachelor Science, Istanbul Arel University, Istanbul, Turkey
| | - Mehmet Onur Aydoğdu
- />Department of Biology, Bachelor Science, Faculty of Arts and Sciences, Marmara University, Istanbul, Turkey
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Cevriye Kalkandelen
- />Vocational School of Technical Sciences, Biomedical Devices Technology Department, Istanbul University, Istanbul, Turkey
| | - George E. Stan
- />National Institute of Materials Physics, 077125 Magurele-Ilfov, Romania
| | - Yesim Muge Sahin
- />Department of Biomedical Engineering, Faculty of Engineering–Architecture, Istanbul Arel University, Istanbul, Turkey
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Ahmed Zeki Sengil
- />School of Medicine, Department of Medical Microbiology, Medipol University, Istanbul, Turkey
| | - Mediha Suleymanoglu
- />Department of Physiology Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Serap Erdem Kuruca
- />Department of Physiology Istanbul Medical Faculty, Istanbul University, Istanbul, Turkey
| | - Faik Nuzhet Oktar
- />Department of Bioengineering, Faculty of Engineering, Marmara University, Istanbul, Turkey
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Serdar Salman
- />Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
| | - Nazmi Ekren
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
- />Department of Electrical and Electronics Engineering, Faculty of Technology, Marmara University, Istanbul, Turkey
| | - Anton Ficai
- />Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| | - Oguzhan Gunduz
- />Advanced Nanomaterials Research Laboratory, Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
- />Department of Metallurgy and Materials Engineering, Faculty of Technology, Marmara University, Goztepe Campus, 34722 Istanbul, Turkey
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Zizzari VL, Zara S, Tetè G, Vinci R, Gherlone E, Cataldi A. Biologic and clinical aspects of integration of different bone substitutes in oral surgery: a literature review. Oral Surg Oral Med Oral Pathol Oral Radiol 2016; 122:392-402. [PMID: 27496576 DOI: 10.1016/j.oooo.2016.04.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 04/12/2016] [Indexed: 12/21/2022]
Abstract
Many bone substitutes have been proposed for bone regeneration, and researchers have focused on the interactions occurring between grafts and host tissue, as the biologic response of host tissue is related to the origin of the biomaterial. Bone substitutes used in oral and maxillofacial surgery could be categorized according to their biologic origin and source as autologous bone graft when obtained from the same individual receiving the graft; homologous bone graft, or allograft, when harvested from an individual other than the one receiving the graft; animal-derived heterologous bone graft, or xenograft, when derived from a species other than human; and alloplastic graft, made of bone substitute of synthetic origin. The aim of this review is to describe the most commonly used bone substitutes, according to their origin, and to focus on the biologic events that ultimately lead to the integration of a biomaterial with the host tissue.
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Affiliation(s)
| | - Susi Zara
- Department of Pharmacy, University "G. d'Annunzio", Chieti, Italy
| | - Giulia Tetè
- Dental School, Vita-Salute University and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy
| | - Raffaele Vinci
- Dental School, Vita-Salute University and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy
| | - Enrico Gherlone
- Dental School, Vita-Salute University and Department of Dentistry, IRCCS San Raffaele Hospital, Milan, Italy
| | - Amelia Cataldi
- Department of Pharmacy, University "G. d'Annunzio", Chieti, Italy
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Shadjou N, Hasanzadeh M. Graphene and its nanostructure derivatives for use in bone tissue engineering: Recent advances. J Biomed Mater Res A 2016; 104:1250-75. [DOI: 10.1002/jbm.a.35645] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 01/06/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Nasrin Shadjou
- Department of Nanochemistry; Nano Technology Research Center and Faculty of Chemistry, Urmia University; Urmia Iran
| | - Mohammad Hasanzadeh
- Drug Applied Research Center, Tabriz University of Medical Sciences; Tabriz 51664 Iran
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41
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Safavi A, Abbaspour A, Sorouri M, Mohammadi A. Highly Efficient Ethanol Electrooxidation on a Synergistically Active Catalyst Based on a Pd-Loaded Composite of Hydroxyapatite. ChemElectroChem 2016. [DOI: 10.1002/celc.201500487] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Afsaneh Safavi
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Abdolkarim Abbaspour
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Mohsen Sorouri
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
| | - Ali Mohammadi
- Department of Chemistry, College of Sciences; Shiraz University; Shiraz 71454 Iran
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42
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Raucci MG, Giugliano D, Longo A, Zeppetelli S, Carotenuto G, Ambrosio L. Comparative facile methods for preparing graphene oxide-hydroxyapatite for bone tissue engineering. J Tissue Eng Regen Med 2016; 11:2204-2216. [PMID: 26756879 DOI: 10.1002/term.2119] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 07/28/2015] [Accepted: 11/06/2015] [Indexed: 11/10/2022]
Abstract
Motivated by the success of using graphene oxide (GO) as a nanofiller of composites, there is a drive to search for this new kind of carbon material as a bioactive component in ceramic materials. In the present study, biomineralized GO was prepared by two different approaches, represented by in situ sol-gel synthesis and biomimetic treatment. It was found that in the biocomposites obtained by the sol-gel approach, the spindle-like hydroxyapatite nanoparticles, with a diameter of ca. 5 ± 0.37 nm and a length of ca. 70 ± 2.5 nm, were presented randomly and strongly on the surface. The oxygen-containing functional groups, such as hydroxyl and carbonyl, present on the basal plane and edges of the GO sheets, play an important role in anchoring calcium ions, as demonstrated by FT-IR and TEM investigations. A different result was obtained for biocomposites after biomimetic treatment: an amorphous calcium phosphate on GO sheet was observed after 5 days of treatment. These different approaches resulted in a diverse effect on the proliferation and differentiation of osteogenic mesenchymal stem cells. In fact, in biocomposites prepared by the sol-gel approach the expression of an early marker of osteogenic differentiation, ALP, increases with the amount of GO in the first days of cell culture. Meanwhile, biomimetic materials sustain cell viability and proliferation, even if the expression of alkaline phosphatase activity in a basal medium is delayed. These findings may provide new prospects for utilizing GO-based hydroxyapatite biocomposites in bone repair, bone augmentation and coating of biomedical implants and broaden the application of GO sheets in biological areas. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- M G Raucci
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - D Giugliano
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - A Longo
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - S Zeppetelli
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - G Carotenuto
- Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - L Ambrosio
- Department of Chemicals Science and Materials Technology, National Research Council of Italy (DSCTM-CNR), Rome, Italy
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43
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Graphene: An Emerging Carbon Nanomaterial for Bone Tissue Engineering. GRAPHENE-BASED MATERIALS IN HEALTH AND ENVIRONMENT 2016. [DOI: 10.1007/978-3-319-45639-3_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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44
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Gangu KK, Maddila S, Maddila SN, Jonnalagadda SB. Decorated multi-walled carbon nanotubes with Sm doped fluorapatites: synthesis, characterization and catalytic activity. RSC Adv 2016. [DOI: 10.1039/c6ra08733g] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Novel and sustainable heterogeneous catalysts, namely, multi-walled carbon nanotubes (MWCNT) decorated with Sm doped fluorapatite nanocomposites (MWCNT/Sm-FAp) were prepared with different loadings of Sm (1%, 2%, 3%, 5%, and 7%).
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Affiliation(s)
- Kranthi Kumar Gangu
- School of Chemistry & Physics
- University of KwaZulu-Natal
- Durban 4000
- South Africa
| | - Suresh Maddila
- School of Chemistry & Physics
- University of KwaZulu-Natal
- Durban 4000
- South Africa
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45
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Martins-Júnior PA, de Sá MA, Andrade VB, Ribeiro HJ, Ferreira AJ. Bone Repair Utilizing Carbon Nanotubes. BIOENGINEERING APPLICATIONS OF CARBON NANOSTRUCTURES 2016. [DOI: 10.1007/978-3-319-25907-9_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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46
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Khanal SP, Mahfuz H, Rondinone AJ, Leventouri T. Improvement of the fracture toughness of hydroxyapatite (HAp) by incorporation of carboxyl functionalized single walled carbon nanotubes (CfSWCNTs) and nylon. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 60:204-210. [PMID: 26706523 DOI: 10.1016/j.msec.2015.11.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 11/03/2015] [Accepted: 11/11/2015] [Indexed: 11/16/2022]
Abstract
The potential of improving the fracture toughness of synthetic hydroxyapatite (HAp) by incorporating carboxyl functionalized single walled carbon nanotubes (CfSWCNTs) and polymerized ε-caprolactam (nylon) was studied. A series of HAp samples with CfSWCNTs concentrations varying from 0 to 1.5 wt.%, without, and with nylon addition was prepared. X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Transmission Electron Microscopy (TEM) were used to characterize the samples. The three point bending test was applied to measure the fracture toughness of the composites. A reproducible value of 3.6±0.3 MPa.√m was found for samples containing 1 wt.% CfSWCNTs and nylon. This value is in the range of the cortical bone fracture toughness. Increase of the CfSWCNTs content results to decrease of the fracture toughness, and formation of secondary phases.
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Affiliation(s)
- S P Khanal
- Department of Physics, Florida Atlantic University, Boca Raton, FL 33431, United States.
| | - H Mahfuz
- Department of Ocean and Mechanical Engineering, Florida Atlantic University, Boca Raton, FL 33431, United States
| | - A J Rondinone
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, United States
| | - Th Leventouri
- Department of Physics, Florida Atlantic University, Boca Raton, FL 33431, United States
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47
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Wang F, Su XX, Guo YC, Li A, Zhang YC, Zhou H, Qiao H, Guan LM, Zou M, Si XQ. Bone regeneration by nanohydroxyapatite/chitosan/poly(lactide-co-glycolide) scaffolds seeded with human umbilical cord mesenchymal stem cells in the calvarial defects of the nude mice. BIOMED RESEARCH INTERNATIONAL 2015; 2015:261938. [PMID: 26550565 PMCID: PMC4621339 DOI: 10.1155/2015/261938] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 09/11/2015] [Accepted: 09/15/2015] [Indexed: 11/29/2022]
Abstract
In the preliminary study, we have found an excellent osteogenic property of nanohydroxyapatite/chitosan/poly(lactide-co-glycolide) (nHA/CS/PLGA) scaffolds seeded with human umbilical cord mesenchymal stem cells (hUCMSCs) in vitro and subcutaneously in the nude mice. The aim of this study was to further evaluate the osteogenic capacity of nHA/CS/PLGA scaffolds seeded with hUCMSCs in the calvarial defects of the nude mice. Totally 108 nude mice were included and divided into 6 groups: PLGA scaffolds + hUCMSCs; nHA/PLGA scaffolds + hUCMSCs; CS/PLGA scaffolds + hUCMSCs; nHA/CS/PLGA scaffolds + hUCMSCs; nHA/CS/PLGA scaffolds without seeding; the control group (no scaffolds) (n = 18). The scaffolds were implanted into the calvarial defects of nude mice. The amount of new bones was evaluated by fluorescence labeling, H&E staining, and Van Gieson staining at 4 and 8 weeks, respectively. The results demonstrated that the amount of new bones was significantly increased in the group of nHA/CS/PLGA scaffolds seeded with hUCMSCs (p < 0.01). On the basis of previous studies in vitro and in subcutaneous implantation of the nude mice, the results revealed that the nHA and CS also enhanced the bone regeneration by nHA/CS/PLGA scaffolds seeded with hUCMSCs in the calvarial defects of the nude mice at early stage.
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Affiliation(s)
- Fei Wang
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Xiao-Xia Su
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Yu-Cheng Guo
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Ang Li
- Research Center for Stomatology, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Yin-Cheng Zhang
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Hong Zhou
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Hu Qiao
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Li-Min Guan
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Min Zou
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
| | - Xin-Qin Si
- Department of Orthodontics, Stomatological Hospital, College of Medicine, Xi'an Jiaotong University, Xi'an 710004, China
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Dorozhkin SV. Calcium Orthophosphate-Containing Biocomposites and Hybrid Biomaterials for Biomedical Applications. J Funct Biomater 2015; 6:708-832. [PMID: 26262645 PMCID: PMC4598679 DOI: 10.3390/jfb6030708] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 07/31/2015] [Accepted: 08/01/2015] [Indexed: 12/30/2022] Open
Abstract
The state-of-the-art on calcium orthophosphate (CaPO4)-containing biocomposites and hybrid biomaterials suitable for biomedical applications is presented. Since these types of biomaterials offer many significant and exciting possibilities for hard tissue regeneration, this subject belongs to a rapidly expanding area of biomedical research. Through the successful combinations of the desired properties of matrix materials with those of fillers (in such systems, CaPO4 might play either role), innovative bone graft biomaterials can be designed. Various types of CaPO4-based biocomposites and hybrid biomaterials those are either already in use or being investigated for biomedical applications are extensively discussed. Many different formulations in terms of the material constituents, fabrication technologies, structural and bioactive properties, as well as both in vitro and in vivo characteristics have been already proposed. Among the others, the nano-structurally controlled biocomposites, those containing nanodimensional compounds, biomimetically fabricated formulations with collagen, chitin and/or gelatin, as well as various functionally graded structures seem to be the most promising candidates for clinical applications. The specific advantages of using CaPO4-based biocomposites and hybrid biomaterials in the selected applications are highlighted. As the way from a laboratory to a hospital is a long one and the prospective biomedical candidates have to meet many different necessities, the critical issues and scientific challenges that require further research and development are also examined.
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Zhang Y, Leu YR, Aitken RJ, Riediker M. Inventory of Engineered Nanoparticle-Containing Consumer Products Available in the Singapore Retail Market and Likelihood of Release into the Aquatic Environment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:8717-43. [PMID: 26213957 PMCID: PMC4555244 DOI: 10.3390/ijerph120808717] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 07/20/2015] [Indexed: 11/17/2022]
Abstract
Consumer products containing engineered nanoparticles (ENP) are already entering the marketplace. This leads, inter alia, to questions about the potential for release of ENP into the environment from commercial products. We have inventoried the prevalence of ENP-containing consumer products in the Singapore market by carrying out onsite assessments of products sold in all major chains of retail and cosmetic stores. We have assessed their usage patterns and estimated release factors and emission quantities to obtain a better understanding of the quantities of ENP that are released into which compartments of the aquatic environment in Singapore. Products investigated were assessed for their likelihood to contain ENP based on the declaration of ENP by producers, feature descriptions, and the information on particle size from the literature. Among the 1,432 products investigated, 138 were "confirmed" and 293 were "likely" to contain ENP. Product categories included sunscreens, cosmetics, health and fitness, automotive, food, home and garden, clothing and footwear, and eyeglass/lens coatings. Among the 27 different types of nanomaterials identified, SiO2 was predominant, followed by TiO2 and ZnO, Carbon Black, Ag, and Au. The amounts of ENP released into the aquatic system, which was estimated on the basis of typical product use, ENP concentration in the product, daily use quantity, release factor, and market share, were in the range of several hundred tons per year. As these quantities are likely to increase, it will be important to further study the fate of ENP that reach the aquatic environment in Singapore.
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Affiliation(s)
- Yuanyuan Zhang
- SAFENANO, IOM Singapore, 30 Raffles Place, #17-00 Chevron House, Singapore 048622, Singapore.
| | - Yu-Rui Leu
- SAFENANO, IOM Singapore, 30 Raffles Place, #17-00 Chevron House, Singapore 048622, Singapore.
| | - Robert J Aitken
- SAFENANO, IOM Singapore, 30 Raffles Place, #17-00 Chevron House, Singapore 048622, Singapore.
| | - Michael Riediker
- SAFENANO, IOM Singapore, 30 Raffles Place, #17-00 Chevron House, Singapore 048622, Singapore.
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50
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Ummartyotin S, Tangnorawich B. Utilization of eggshell waste as raw material for synthesis of hydroxyapatite. Colloid Polym Sci 2015. [DOI: 10.1007/s00396-015-3646-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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