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Moghimi N, Kamaraj M, Zehtabi F, Amin Yavari S, Kohandel M, Khademhosseini A, John JV. Development of bioactive short fiber-reinforced printable hydrogels with tunable mechanical and osteogenic properties for bone repair. J Mater Chem B 2024; 12:2818-2830. [PMID: 38411556 DOI: 10.1039/d3tb02924g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Personalized bone-regenerative materials have attracted substantial interest in recent years. Modern clinical settings demand the use of engineered materials incorporating patient-derived cells, cytokines, antibodies, and biomarkers to enhance the process of regeneration. In this work, we formulated short microfiber-reinforced hydrogels with platelet-rich fibrin (PRF) to engineer implantable multi-material core-shell bone grafts. By employing 3D bioprinting technology, we fabricated a core-shell bone graft from a hybrid composite hydroxyapatite-coated poly(lactic acid) (PLA) fiber-reinforced methacryolyl gelatin (GelMA)/alginate hydrogel. The overall concept involves 3D bioprinting of long bone mimic microstructures that resemble a core-shell cancellous-cortical structure, with a stiffer shell and a softer core with our engineered biomaterial. We observed a significantly enhanced stiffness in the hydrogel scaffold incorporated with hydroxyapatite (HA)-coated PLA microfibers compared to the pristine hydrogel construct. Furthermore, HA non-coated PLA microfibers were mixed with PRF and GelMA/alginate hydrogel to introduce a slow release of growth factors which can further enhance cell maturation and differentiation. These patient-specific bone grafts deliver cytokines and growth factors with distinct spatiotemporal release profiles to enhance tissue regeneration. The biocompatible and bio-responsive bone mimetic core-shell multi-material structures enhance osteogenesis and can be customized to have materials at a specific location, geometry, and material combination.
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Affiliation(s)
- Nafiseh Moghimi
- Terasaki Institute for Biomedical Innovations, Los Angeles, California, USA.
- Mathematical Medicine Lab, University of Waterloo, Ontario, Canada
| | - Meenakshi Kamaraj
- Terasaki Institute for Biomedical Innovations, Los Angeles, California, USA.
| | - Fatemeh Zehtabi
- Terasaki Institute for Biomedical Innovations, Los Angeles, California, USA.
| | - Saber Amin Yavari
- Terasaki Institute for Biomedical Innovations, Los Angeles, California, USA.
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovations, Los Angeles, California, USA.
| | - Johnson V John
- Terasaki Institute for Biomedical Innovations, Los Angeles, California, USA.
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Kohoolat G, Alizadeh P, Motesadi Zarandi F, Rezaeipour Y. A ternary composite hydrogel based on sodium alginate, carboxymethyl cellulose and copper-doped 58S bioactive glass promotes cutaneous wound healing in vitro and in vivo. Int J Biol Macromol 2024; 259:129260. [PMID: 38199544 DOI: 10.1016/j.ijbiomac.2024.129260] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/26/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024]
Abstract
Hydrogels offer a novel approach to wound repair. In this study, we synthesized a ternary composite using sodium alginate (SA), carboxymethyl cellulose (CMC) and copper-doped 58S bioactive glass (BG). According to our mechanical testing results, the composite made of 7 wt% CMC and 7 wt% BG (SA-7CMC-7BG) showed optimal properties. In addition, our in vitro studies revealed the biocompatibility and bioactivity of SA-7CMC-7BG, with a negative zeta potential of -31.7 mV. Scanning electron microscope (SEM) images showed 273-μm-diameter pores, cell adhesion, and anchoring. The SA-7CMC-7BG closed 90.4 % of the mechanical scratch after 2 days. An in vivo wound model using Wistar rats showed that SA-7CMC-7BG promoted wound healing, with 85.57 % of the wounds healed after 14 days. Treatment with the SA-7CMC-7BG hydrogel caused a 1.6-, 65-, and 1.87-fold increase in transforming growth factor beta (TGF-β), Col I, and vascular endothelial growth factor (VEGF) expression, respectively that prevents fibrosis and promotes angiogenesis. Furthermore, interleukin 1β (IL-1β) expression was downregulated by 1.61-fold, indicating an anti-inflammatory effect of SA-7CMC-7BG. We also observed an increase in epidermal thickness, the number of fibroblast cells, and collagen deposition, which represent complementary pathology results confirming the effectiveness of the SA-7CMC-7BG hydrogel in cutaneous wound healing.
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Affiliation(s)
- Ghazaleh Kohoolat
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Parvin Alizadeh
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran.
| | - Fatemeh Motesadi Zarandi
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
| | - Yashar Rezaeipour
- Department of Materials Science & Engineering, Faculty of Engineering & Technology, Tarbiat Modares University, P. O. Box: 14115-143, Tehran, Iran
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Chauvin A, Garda MR, Snyder N, Cui B, Delpouve N, Tan L. Hydroxyapatite-Based Coatings on Silicon Wafers and Printed Zirconia. J Funct Biomater 2023; 15:11. [PMID: 38248678 PMCID: PMC10817446 DOI: 10.3390/jfb15010011] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024] Open
Abstract
Dental surgery needs a biocompatible implant design that can ensure both osseointegration and soft tissue integration. This study aims to investigate the behavior of a hydroxyapatite-based coating, specifically designed to be deposited onto a zirconia substrate that was intentionally made porous through additive manufacturing for the purpose of reducing the cost of material. Layers were made via sol-gel dip coating by immersing the porous substrates into solutions of hydroxyapatite that were mixed with polyethyleneimine to improve the adhesion of hydroxyapatite to the substrate. The microstructure was determined by using X-ray diffraction, which showed the adhesion of hydroxyapatite; and atomic force microscopy was used to highlight the homogeneity of the coating repartition. Thermogravimetric analysis, differential scanning calorimetry, and Fourier transform infrared spectroscopy showed successful, selective removal of the polymer and a preserved hydroxyapatite coating. Finally, scanning electron microscopy pictures of the printed zirconia ceramics, which were obtained through the digital light processing additive manufacturing method, revealed that the mixed coating leads to a thicker, more uniform layer in comparison with a pure hydroxyapatite coating. Therefore, homogeneous coatings can be added to porous zirconia by combining polyethyleneimine with hydroxyapatite. This result has implications for improving global access to dental care.
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Affiliation(s)
- Antoine Chauvin
- Groupe de Physique des Matériaux UMR 6634, CNRS, Université de Rouen Normandie, INSA Rouen Normandie, F-76000 Rouen, France (M.-R.G.)
| | - Marie-Rose Garda
- Groupe de Physique des Matériaux UMR 6634, CNRS, Université de Rouen Normandie, INSA Rouen Normandie, F-76000 Rouen, France (M.-R.G.)
| | - Nathan Snyder
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA (B.C.); (L.T.)
| | - Bai Cui
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA (B.C.); (L.T.)
| | - Nicolas Delpouve
- Groupe de Physique des Matériaux UMR 6634, CNRS, Université de Rouen Normandie, INSA Rouen Normandie, F-76000 Rouen, France (M.-R.G.)
| | - Li Tan
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE 68588, USA (B.C.); (L.T.)
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Rüzgar A, Karataş Y, Gülcan M. Synthesis and characterization of Pd 0 nanoparticles supported over hydroxyapatite nanospheres for potential application as a promising catalyst for nitrophenol reduction. Heliyon 2023; 9:e21517. [PMID: 38027962 PMCID: PMC10660537 DOI: 10.1016/j.heliyon.2023.e21517] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 10/02/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Nitrophenols, which are defined as an important toxic and carcinogenic pollutant in agricultural and industrial wastewater due to their solubility in water, form of resistance against all organisms in water resources. It is vital that these compounds, which are highly toxic as well as highly explosive, are removed from the aquatic ecosystem. In this paper, we reported the preparation and advanced characterization of Pd0 nanoparticles supported over hydroxyapatite nanospheres (Pd0@nano-HAp). The catalytic efficiency of the Pd0@nano-HAp catalyst was examined in the reduction of nitrophenols in water in the presence of NaBH4 as reducing agent and the great activity of catalyst have been specified against 2-nitrophenol, 4-nitrophenol, 2,4-dinitrophenol and 2,4,6-trinitrophenol compounds with 70.6, 82.4, 27.6 and 41.4 min-1 TOFinitial values, respectively. Another important point is that the Pd0@nano-HAp catalyst has perfect reusability performance (at 5th reuse between 68.5 and 92.8 %) for the reduction of nitrophenols. In addition, catalytic studies were carried out at different temperatures in order to determine thermodynamic parameters such as Ea, ΔH≠ and ΔS≠.
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Affiliation(s)
- Adem Rüzgar
- Department of Chemistry, Van Yüzüncü Yıl University, Van, 65080, Turkey
| | - Yaşar Karataş
- Department of Chemistry, Van Yüzüncü Yıl University, Van, 65080, Turkey
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Rahmani F, Larbi Bouamrane O, Ben Bouabdallah A, Atanase LI, Hellal A, Apintiliesei AN. Biomimetic Hydroxyapatite Crystals Growth on Phosphorylated Chitosan Films by In Vitro Mineralization Used as Dental Substitute Materials. Polymers (Basel) 2023; 15:polym15112470. [PMID: 37299269 DOI: 10.3390/polym15112470] [Citation(s) in RCA: 2] [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: 04/05/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Chitosan (CS) films exhibit great potential as a substrate for the in vitro mineralization process. In this study, to mimic the formation of nanohydroxyapatite (HAP) as natural tissue, CS films coated with a porous calcium phosphate were investigated using scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDX), Fourier transforms infrared spectroscopy (FTIR), X-ray diffractometry (XRD) and X-ray photoelectron spectroscopy (XPS). Calcium phosphate coating deposited on phosphorylated derivatives of CS was obtained by a process based on phosphorylation, Ca(OH)2 treatment and artificial saliva solution (ASS) immersion. The phosphorylated CS films (PCS) were obtained by partial hydrolysis of the PO4 functionalities. It was demonstrated that this precursor phase could induce the growth and the nucleation of the porous calcium phosphate coating when immersed in ASS. Moreover, oriented crystals and qualitative control of calcium phosphate phases on CS matrices are obtained in a biomimetic mode. Furthermore, in vitro antimicrobial activity of PCS was evaluated against three species of oral bacteria and fungi. It revealed an increase in antimicrobial activity with minimum inhibition concentration (MIC) values of 0.10% (Candida albicans), 0.05% (Staphylococcus aureus) and 0.025% (Escherichia coli) which proves their possible use as dental substitute materials.
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Affiliation(s)
- Fathia Rahmani
- Department of Technology, Faculty of Science and Technology, University of Djillali Bounaama, Theniet El Had Street, Khemis-Miliana, Ain Defla 44225, Algeria
- Laboratory for the Processing and Shaping of Fibrous Polymers (LTMFP), M'Hamed Bougara University, Boumerdes 35000, Algeria
| | - Omar Larbi Bouamrane
- Institute of Science, University Center of Tipaza Morseli Abdallah, Oued Merzoug, Tipaza 42022, Algeria
- Laboratory of Natural Substances Valorization (LVSN), Faculty of Science and Technology, University of Djillali Bounaama, Theniet El Had Street, Khemis-Miliana, Ain Defla 44225, Algeria
| | - Amina Ben Bouabdallah
- Laboratory for the Processing and Shaping of Fibrous Polymers (LTMFP), M'Hamed Bougara University, Boumerdes 35000, Algeria
- Department of Process Engineering, Faculty of Technology, University of M'hamed Bougara, Boumerdes 35000, Algeria
- Food Technology Laboratory, University of M'hamed Bougara, Boumerdes 35000, Algeria
| | - Leonard I Atanase
- Faculty of Medical Dentistry, "Apollonia" University of Iasi, 700511 Iasi, Romania
- Academy of Romanian Scientists, 050045 Bucharest, Romania
| | - Abdelkader Hellal
- Laboratory of Natural Substances Valorization (LVSN), Faculty of Science and Technology, University of Djillali Bounaama, Theniet El Had Street, Khemis-Miliana, Ain Defla 44225, Algeria
- Chemistry Department, Faculty of Sciences, University of Ferhat Abbas-Sétif-1, Sétif 19137, Algeria
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Ghafari F, Karbasi S, Eslaminejad MB, Sayahpour FA, Kalantari N. Biological evaluation and osteogenic potential of polyhydroxybutyrate-keratin/Al 2O 3 electrospun nanocomposite scaffold: A novel bone regeneration construct. Int J Biol Macromol 2023; 242:124602. [PMID: 37141963 DOI: 10.1016/j.ijbiomac.2023.124602] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/10/2023] [Accepted: 04/21/2023] [Indexed: 05/06/2023]
Abstract
In this study, the effect of alumina nanowire on the physical and biological properties of polyhydroxybutyrate-keratin (PHB-K) electrospun scaffold was investigated. First, PHB-K/alumina nanowire nanocomposite scaffolds were made with an optimal concentration of 3 wt% alumina nanowire by using the electrospinning method. The samples were examined in terms of morphology, porosity, tensile strength, contact angle, biodegradability, bioactivity, cell viability, ALP activity, mineralization ability, and gene expression. The nanocomposite scaffold provided a porosity of >80 % and a tensile strength of about 6.72 Mpa, which were noticeable for an electrospun scaffold. AFM images showed an increase in the surface roughness with the presence of alumina nanowires. This led to an improvement in the degradation rate and bioactivity of PHB-K/alumina nanowire scaffolds. The viability of mesenchymal cells, alkaline phosphatase secretion, and mineralization significantly increased with the presence of alumina nanowire compared to PHB and PHB-K scaffolds. In addition, the expression level of collagen I, osteocalcin, and RUNX2 genes in nanocomposite scaffolds increased significantly compared to other groups. In general, this nanocomposite scaffold could be a novel and interesting construct for osteogenic induction in bone tissue engineering.
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Affiliation(s)
- Fereshte Ghafari
- Department of Tissue Engineering, Faculty of Basic Sciences and Advanced Medical Technologies, Royan Institute, ACECR, Tehran, Iran
| | - Saeed Karbasi
- Department of Biomaterials and Tissue Engineering, School of Advance Technology in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Mohamadreza Baghaban Eslaminejad
- Department of Tissue Engineering, Faculty of Basic Sciences and Advanced Medical Technologies, Royan Institute, ACECR, Tehran, Iran; Department of Stem Cells and Departmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran.
| | - Forough Azam Sayahpour
- Department of Stem Cells and Departmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Niloofar Kalantari
- Department of Stem Cells and Departmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
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Swapna YV, Mathew CT, K Thomas J. Resistive coupled microwave sintering - A promising technique to fabricate bioceramics with improved properties. J Mech Behav Biomed Mater 2022; 136:105488. [PMID: 36201940 DOI: 10.1016/j.jmbbm.2022.105488] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/21/2022] [Accepted: 09/24/2022] [Indexed: 11/16/2022]
Abstract
Enhancing the mechanical properties of biocompatible hydroxyapatite is one of the major challenges in the fabrication of bone implants. In this work, phase pure samples of nano-hydroxyapatite with an average crystallite size of 22 nm, were synthesized by a modified single-step combustion technique. The samples were sintered by a novel resistive coupled microwave sintering technique to 98.4% of theoretical density at 1030 °C for a soaking duration of 20 min. The new method yielded pellets with an average grain size of 0.12 ± 0.01 μm, that showed an improved Vickers microhardness of 7.1 GPa, enhanced young's modulus of 110.51 ± 1.8 GPa, and better compressive strength of 172 ± 10 MPa compared to those pellets sintered via conventional resistive heating. The sintered samples showed better cell viability, cell adhesion, proliferation, differentiation, and osteogenic potential. The enhanced mechanical properties achieved by resistive coupled microwave sintering without compromising the biological properties is a remarkable result that can effectively be used in the fabrication of high-quality bone substitutes.
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Affiliation(s)
- Y V Swapna
- Electronic Materials Research Laboratory, Department of Physics, Mar Ivanios College, Thiruvananthapuram, 695015, Kerala, India
| | - C T Mathew
- Electronic Materials Research Laboratory, Department of Physics, Mar Ivanios College, Thiruvananthapuram, 695015, Kerala, India
| | - Jijimon K Thomas
- Electronic Materials Research Laboratory, Department of Physics, Mar Ivanios College, Thiruvananthapuram, 695015, Kerala, India.
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Amiri Z, Malmir M, Hosseinnejad T, Kafshdarzadeh K, Heravi MM. Combined experimental and computational study on Ag-NPs immobilized on rod-like hydroxyapatite for promoting Hantzsch reaction. Molecular Catalysis 2022. [DOI: 10.1016/j.mcat.2022.112319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Avila-Ramírez A, Valle-Pérez AU, Susapto HH, Pérez-Pedroza R, Briola GR, Alrashoudi A, Khan Z, Bilalis P, Hauser CAE. Ecologically Friendly Biofunctional Ink for Reconstruction of Rigid Living Systems Under Wet Conditions. Int J Bioprint 2021; 7:398. [PMID: 34805592 PMCID: PMC8600305 DOI: 10.18063/ijb.v7i4.398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 07/21/2021] [Indexed: 12/13/2022] Open
Abstract
The development of three-dimensional (3D)-printable inks is essential for several applications, from industrial manufacturing to novel applications for biomedical engineering. Remarkably, biomaterials for tissue engineering applications can be expanded to other new horizons; for instance, restoration of rigid living systems as coral reefs is an emergent need derived from recent issues from climate change. The coral reefs have been endangered, which can be observed in the increasing bleaching around the world. Very few studies report eco-friendly inks for matter since most conventional approaches require synthetic polymer, which at some point could be a pollutant depending on the material. Therefore, there is an unmet need for cost-effective formulations from eco-friendly materials for 3D manufacturing to develop carbonate-based inks for coral reef restoration. Our value proposition derives from technologies developed for regenerative medicine, commonly applied for human tissues like bone and cartilage. In our case, we created a novel biomaterial formulation from biopolymers such as gelatin methacrylate, poly (ethylene glycol diacrylate), alginate, and gelatin as scaffold and binder for the calcium carbonate and hydroxyapatite bioceramics needed to mimic the structure of rigid structures. This project presents evidence from 2D/3D manufacturing, chemical, mechanical, and biological characterization, which supports the hypothesis of its utility to aid in the fight to counteract the coral bleaching that affects all the marine ecosystem, primarily when this is supported by solid research in biomaterials science used for living systems, it can extend tissue engineering into new approaches in different domains such as environmental or marine sciences.
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Affiliation(s)
- Alan Avila-Ramírez
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Alexander U Valle-Pérez
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Hepi Hari Susapto
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Rosario Pérez-Pedroza
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Giuseppina R Briola
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Abdulelah Alrashoudi
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Zainab Khan
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Panayiotis Bilalis
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Charlotte A E Hauser
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia.,Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology, Thuwal 23955-69900, Saudi Arabia
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Lin DJ, Lin HL, Haung SM, Liu SM, Chen WC. Effect of pH on the In Vitro Biocompatibility of Surfactant-Assisted Synthesis and Hydrothermal Precipitation of Rod-Shaped Nano-Hydroxyapatite. Polymers (Basel) 2021; 13:2994. [PMID: 34503034 DOI: 10.3390/polym13172994] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 08/31/2021] [Accepted: 08/31/2021] [Indexed: 12/26/2022] Open
Abstract
Given their wide range of biomedical applications, hydroxyapatite (HA) nanoparticles are an attractive material widely used in many fields. Therefore, a simple, inexpensive, and stable process for the synthesis of HA nanoparticles is necessary to meet current needs. Herein, we studied HA synthesis assisted by four surfactants, namely cation, anion, non-ionic, and zwitterion templates, to verify the synthesis phase, aspect ratio, morphology, and biocompatibility under different environments (i.e., pH 4 and 9) before and after calcination. Results showed that before calcination, the surfactant-free groups could not produce HA but showed an abundant dicalcium phosphate anhydrous (DCPA) phase at pH 4. Except for the anionic group containing a small amount of DCPA, all surfactant-assistant groups presented single-phase HA in acidic and alkaline environments. The diameter of HA synthesized at pH 4 was significantly larger than that of HA synthesized at pH 9, and the effect of aspect ratio changes after calcination was more significant than that before calcination. The uncalcined rod-shaped HA synthesized with a non-ionic template at pH 4 demonstrated excellent cell viability, whereas anionic, cationic, and non-ionic surfactants exhibited biocompatibility only after calcination. At pH 9, non-ionic and uncalcined zwitterion-assisted rod-shaped HA showed excellent biocompatibility. In conclusion, the uncalcined HA rod-shaped nanoparticles synthesized from the non-ionic template at pH 4 and 9 and the zwitterion template at pH 9, as well as all surfactant-assisted HA after calcination, had no cytotoxicity. These tailor-made non-toxic HA types can meet the different requirements of apatite composite materials in biomedical applications.
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Mandal T, Mishra B, Garg A, Chaira D. Optimization of milling parameters for the mechanosynthesis of nanocrystalline hydroxyapatite. POWDER TECHNOL 2014; 253:650-6. [DOI: 10.1016/j.powtec.2013.12.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [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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Marković S, Veselinović L, Lukić MJ, Karanović L, Bračko I, Ignjatović N, Uskoković D. Synthetical bone-like and biological hydroxyapatites: a comparative study of crystal structure and morphology. Biomed Mater 2011; 6:045005. [PMID: 21659698 DOI: 10.1088/1748-6041/6/4/045005] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Phase composition, crystal structure and morphology of biological hydroxyapatite (BHAp) extracted from human mandible bone, and carbonated hydroxyapatite (CHAp), synthesized by the chemical precipitation method, were studied by x-ray powder diffraction (XRD), Fourier transform infrared (FTIR) and Raman (R) spectroscopy techniques, combined with transmission electron microscopy (TEM). Structural and microstructural parameters were determined through Rietveld refinement of recorded XRD data, performed using the FullProf computing program, and TEM. Microstructural analysis shows anisotropic extension along the [00l] crystallographic direction (i.e. elongated crystallites shape) of both investigated samples. The average crystallite sizes of 10 and 8 nm were estimated for BHAp and CHAp, respectively. The FTIR and R spectroscopy studies show that carbonate ions substitute both phosphate and hydroxyl ions in the crystal structure of BHAp as well as in CHAp, indicating that both of them are mixed AB-type of CHAp. The thermal behaviour and carbonate content were analysed using thermogravimetric and differential thermal analysis. The carbonate content of about 1 wt.% and phase transition, at near 790 °C, from HAp to β-tricalcium phosphate were determined in both samples. The quality of synthesized CHAp powder, particularly, the particle size distribution and uniformity of morphology, was analysed by a particle size analyser based on laser diffraction and field emission scanning electron microscopy, respectively. These data were used to discuss similarity between natural and synthetic CHAp. Good correlation between the unit cell parameters, average crystallite size, morphology, carbonate content and crystallographic positions of carbonate ions in natural and synthetic HAp samples was found.
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Affiliation(s)
- Smilja Marković
- Institute of Technical Sciences of the Serbian Academy of Sciences and Arts, Knez Mihailova 35/IV, 11001 Belgrade, Serbia
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Cunniffe GM, O'Brien FJ, Partap S, Levingstone TJ, Stanton KT, Dickson GR. The synthesis and characterization of nanophase hydroxyapatite using a novel dispersant-aided precipitation method. J Biomed Mater Res A 2010; 95:1142-9. [DOI: 10.1002/jbm.a.32931] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2009] [Revised: 07/08/2010] [Accepted: 07/09/2010] [Indexed: 11/09/2022]
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Abstract
To meet the demand for the bone fracture internal fixation, hydroxyapatite/chitosan (HA/CS) nanocomposite rods were reinforced via a covalently crosslinking method. The bending strength and bending modulus of the crosslinked HA/CS (5/100, wt/wt) rods could arrive at 178 MPa and 5.2 GPa, respectively, increased by 107% and 52.9% compared with uncrosslinked HA/CS (5/100, wt/wt) rods. XRD analysis indicated that the crystallinity of CS decreased after the network structure formed. CS crystal plane space (d) became smaller after crosslinking, but HA nanoparticles could prevent the decrease of d. HA nanoparticles (100 nm in length, 20-30 nm in width) were uniformly dispersed in a CS matrix. Increasing the content of HA, the acicular morphology of HA particles became vague, but crosslinking could make the acicular morphology clear over again, because the size of HA nanoparticles became smaller after crosslinking. A microstructure was observed by SEM, indicating that a layer-by-layer structure of the composite rods became much tighter through crosslinking, and the cracks turned around when they reached another layer to absorb energy. Consequently, HA/CS nanocomposite rods with high mechanical performance should be one novel device used for internal fixation of bone fracture.
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Affiliation(s)
- Zhengke Wang
- Key Laboratory of Macromolecule Synthesis and Functionalization, Ministry of Education, Zhejiang University, Hangzhou 310027, People's Republic of China
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Sun F, Lim BK, Ryu SC, Lee D, Lee J. Preparation of multi-layered film of hydroxyapatite and chitosan. Materials Science and Engineering: C 2010. [DOI: 10.1016/j.msec.2010.03.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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