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Jagadeeshanayaka N, Kele SN, Jambagi SC. An Investigation into the Relative Efficacy of High-Velocity Air-Fuel-Sprayed Hydroxyapatite Implants Based on the Crystallinity Index, Residual Stress, Wear, and In-Flight Powder Particle Behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:17513-17528. [PMID: 38050681 DOI: 10.1021/acs.langmuir.3c02840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/06/2023]
Abstract
Due to its resemblance to the bone, hydroxyapatite (HA) has been widely used for bioactive surface modification of orthopedic implants. However, it undergoes significant thermal decomposition and phase transformations at a high operating temperature, leading to premature implant failure. This investigation uses high-velocity air-fuel (HVAF) spray, an emerging low-temperature thermal spray technique, to deposit HA over the Ti-6Al-4V substrate. Coating characteristics, such as the crystallinity index and phase analysis, were measured using X-ray diffraction, Raman analysis, and Fourier transform infrared spectroscopy, residual stress using the sin2ψ method, and tribological performance by a fretting wear test. The coating retained an over 90% crystallinity index, a crystallite size of 41.04 nm, a compressive residual stress of -229 ± 34.5 MPa, and a wear rate of 1.532 × 10-3 mm3 N-1 m-1. Computational in-flight particle traits of HA particles (5 to 60 μm) were analyzed using computational fluid dynamics; it showed that 90% of particles were deposited at a 700 to 1000 m/s velocity and a 900 to 1450 K temperature with a 2.1 ms mean residence time. In-flight particle oxidation was minimized, and particle impact deformation was maximized, which caused severe plastic deformation, forming crystalline, compressive residual stressed coatings. The thermal decomposition model of low-temperature HVAF-sprayed HA particles helped to understand the implants' crystallinity index, residual stress, and tribological characteristics. Hence, this experimental and computational analysis shows that the HVAF process can be a promising candidate for biomedical applications for having strong and durable implants.
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Affiliation(s)
- N Jagadeeshanayaka
- Surface Engineering Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal 575025, India
| | - Shubham Nitin Kele
- Surface Engineering Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal 575025, India
| | - Sudhakar C Jambagi
- Surface Engineering Laboratory, Department of Mechanical Engineering, National Institute of Technology Karnataka, Surathkal 575025, India
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2
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Dorozhkin SV. There Are over 60 Ways to Produce Biocompatible Calcium Orthophosphate (CaPO4) Deposits on Various Substrates. JOURNAL OF COMPOSITES SCIENCE 2023; 7:273. [DOI: 10.3390/jcs7070273] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
A The present overview describes various production techniques for biocompatible calcium orthophosphate (abbreviated as CaPO4) deposits (coatings, films and layers) on the surfaces of various types of substrates to impart the biocompatible properties for artificial bone grafts. Since, after being implanted, the grafts always interact with the surrounding biological tissues at the interfaces, their surface properties are considered critical to clinical success. Due to the limited number of materials that can be tolerated in vivo, a new specialty of surface engineering has been developed to desirably modify any unacceptable material surface characteristics while maintaining the useful bulk performance. In 1975, the development of this approach led to the emergence of a special class of artificial bone grafts, in which various mechanically stable (and thus suitable for load-bearing applications) implantable biomaterials and artificial devices were coated with CaPO4. Since then, more than 7500 papers have been published on this subject and more than 500 new publications are added annually. In this review, a comprehensive analysis of the available literature has been performed with the main goal of finding as many deposition techniques as possible and more than 60 methods (double that if all known modifications are counted) for producing CaPO4 deposits on various substrates have been systematically described. Thus, besides the introduction, general knowledge and terminology, this review consists of two unequal parts. The first (bigger) part is a comprehensive summary of the known CaPO4 deposition techniques both currently used and discontinued/underdeveloped ones with brief descriptions of their major physical and chemical principles coupled with the key process parameters (when possible) to inform readers of their existence and remind them of the unused ones. The second (smaller) part includes fleeting essays on the most important properties and current biomedical applications of the CaPO4 deposits with an indication of possible future developments.
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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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3
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Periodontal Therapy Using Bioactive Glasses: A Review. PROSTHESIS 2022. [DOI: 10.3390/prosthesis4040052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
This paper reviews the use of bioactive glasses as materials for periodontal repair. Periodontal disease causes bone loss, resulting in tooth loosening and eventual tooth loss. However, it can be reversed using bioactive glass, typically the original 45S5 formulation (Bioglass®) at the defect site. This is done either by plcing bioactive glass granules or a bioactive glass putty at the defect. This stimulates bone repair and causes the defect to disappear. Another use of bioactive glass in periodontics is to repair so-called furcation defects, i.e., bone loss due to infection at the intersection of the roots in multi-rooted teeth. This treatment also gives good clinical outcomes. Finally, bioactive glass has been used to improve outcomes with metallic implants. This involves either placing bioactive glass granules into the defect prior to inserting the metal implant, or coating the implant with bioactive glass to improve the likelihood of osseointegration. This needs the glass to be formulated so that it does not crack or debond from the metal. This approach has been very successful, and bioactive glass coatings perform better than those made from hydroxyapatite.
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Pereira C, Baumann JS, Humbot V, Falentin-Daudré C. Biological properties of direct grafting by ultraviolet irradiation of vinyl benzyl phosphonic acid onto titanium surfaces. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2022.105215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Liu L, Wang X, Zhou Y, Cai M, Lin K, Fang B, Xia L. The synergistic promotion of osseointegration by nanostructure design and silicon substitution of hydroxyapatite coatings in a diabetic model. J Mater Chem B 2021; 8:2754-2767. [PMID: 32196041 DOI: 10.1039/c9tb02882j] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Accumulating evidence indicates much higher failure rates for biomedical titanium implants in diabetic patients. This phenomenon is attributed to impaired osteoblastic function, suppressed angiogenesis capacity, and abnormal osteoclast activation in diabetic patients. Our previous study demonstrated that titanium implants coated with highly crystalline nanostructured hydroxyapatite (nHA) promoted the osteogenic differentiation of bone marrow stromal cells (BMSCs) and bone-implant osseointegration under healthy conditions. Furthermore, recent studies showed that silicon-substituted biomaterials exhibited excellent osteogenesis and angiogenesis performance while repressing osteoclastogenesis. Hence, we proposed that a combination of nanostructural modification and Si substitution might produce synergetic effects to mitigate the impaired osseointegration of bone implants under diabetes mellitus (DM) conditions. To confirm this hypothesis, titanium implants coated with highly crystalline Si-substituted nHA (Si-nHA) were successfully fabricated via atmospheric plasma spraying combined with hydrothermal treatment. An in vitro study demonstrated that compared to the original HA coating, the nHA coating improved osteogenic and angiogenic differentiation and altered the OPG/RANKL ratio of DM-BMSCs. In addition, the Si-nHA coating further enhanced cell proliferation, improved osteogenic and angiogenic differentiation, and repressed osteoclastogenesis in DM-BMSCs. An in vivo study confirmed that the titanium implants coated with nHA or Si-nHA effectively promoted bone formation and bone-implant osseointegration in a diabetic rabbit model, with the Si-nHA coating exhibiting the best stimulatory effect. Collectively, the results suggest that the nanostructured topography and Si substitution act synergistically to ameliorate the poor bone regeneration and osseointegration associated with DM. Thus, the results provide a promising coating method for dental and orthopedic applications under diabetic conditions.
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Affiliation(s)
- Lu Liu
- Department of Orthodontics, Shanghai Ninth People's Hospital, Collage of Stomatology, Shanghai Jiao Tong University School of Medicine, Innovative Research Team of High-level Local Universities in Shanghai, Shanghai 200011, China. and National Clinical Research Center for Oral Diseases, Shanghai 200011, China. and Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Xiuhui Wang
- Institute of Translational Medicine, Shanghai University, Shanghai 200011, China
| | - Yuning Zhou
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China. and Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China and Department of Oral Surgery, Shanghai Ninth People's Hospital, Collage of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Ming Cai
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China. and Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China and Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Collage of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Kaili Lin
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China. and Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China and Department of Oral & Cranio-Maxillofacial Surgery, Shanghai Ninth People's Hospital, Collage of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Bing Fang
- Department of Orthodontics, Shanghai Ninth People's Hospital, Collage of Stomatology, Shanghai Jiao Tong University School of Medicine, Innovative Research Team of High-level Local Universities in Shanghai, Shanghai 200011, China. and National Clinical Research Center for Oral Diseases, Shanghai 200011, China. and Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Lunguo Xia
- Department of Orthodontics, Shanghai Ninth People's Hospital, Collage of Stomatology, Shanghai Jiao Tong University School of Medicine, Innovative Research Team of High-level Local Universities in Shanghai, Shanghai 200011, China. and National Clinical Research Center for Oral Diseases, Shanghai 200011, China. and Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai 200011, China
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6
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Rajabi F, Zarei-Hanzaki A, Abedi HR, Safdel A, Bertrand E. Comparing the mechanical properties, microstructure, texture and in-vitro degradation behavior of TNTZ/nano-fluorapatite composite and TNTZ bioalloy. J Mech Behav Biomed Mater 2021; 117:104402. [PMID: 33621865 DOI: 10.1016/j.jmbbm.2021.104402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/10/2021] [Accepted: 02/11/2021] [Indexed: 10/22/2022]
Abstract
The present study deals with (i) the fabrication of the composite surface layer of Ti-29Nb-13Ta-4.6Zr/nano-fluorapatite through friction stir processing, (ii) clarifying the correlation of microstructure and texture with in-vitro degradation behavior and bioactivity of fabricated nano-biocomposite, and (iii) comparing the mechanical and functional properties of nano composite whit those obtained for TNTZ bio-alloy. The results indicated that increasing the number of deformation passes effectively refines the microstructure, leading to the average grain sizes of less than 5 μm. The texture of the material was also evolved in the presence of the nano particles where the grains reorient along <111> direction in contrast to the <101>-oriented grains in the starting microstructure. In-vitro bioactivity of the processed samples was measured after being immersed in simulated body fluid solution for various duration up to 30 days. Enhanced corrosion resistance and bio-mineralization of nanocomposite surface layer was discussed relying on the occurrence of grain refinement, substructure development and evolution of texture components along <101> direction. Assessment of the mechanical properties of the fabricated composites and as-received material also indicated the positive effect of the applied processing route and the presence of nano particles.
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Affiliation(s)
- F Rajabi
- Hot Deformation & Thermomechanical Processing Laboratory of High Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - A Zarei-Hanzaki
- Hot Deformation & Thermomechanical Processing Laboratory of High Performance Engineering Materials, School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran.
| | - H R Abedi
- School of Metallurgy & Materials Engineering, Iran University of Science and Technology (IUST), Tehran, Iran.
| | - A Safdel
- Department of Mechanical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4L7, Canada
| | - E Bertrand
- Institut des Matériaux Jean Rouxel (IMN), Université de Nantes, CNRS, 2 rue de la Houssinière, BP 32229, 44322, Nantes cedex 3, France
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7
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Xiong XB, Liu C, Ni XY, Liang CQ, Zeng XR. Polyvinyl Alcohol/Graphene Oxide Interlayer for Enhancing Adhesive Performance of HA Coating on C/C Composites Prepared by Hydrothermal Electrodeposition/Hydrothermal Treatment. ACS APPLIED MATERIALS & INTERFACES 2020; 12:55710-55722. [PMID: 33263993 DOI: 10.1021/acsami.0c17649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hydroxyapatite (HA) coatings directly deposited by hydrothermal electrochemical technology (HET) onto carbon/carbon (C/C) composites exhibited a catastrophic failure occurring at the interface of the HA and C/C. To overcome this problem, a polyvinyl alcohol (PVA)/graphene oxide (GO) interlayer (P/G interlayer) was applied on the (NH4)2S2O8-pretreated C/C substrate (named P/G-C/C) by using a dipping method. Subsequently, a calcium phosphate coating was deposited on P/G-C/C, shortened as M-P/G-C/C, by HET, and then converted into HA coating (abbreviated as HA-P/G-C/C) through posthydrothermal treatment. For comparison, HA coating was prepared onto C/C without a P/G interlayer through the same process, which was denoted as HA-C/C. The composition, microstructure, and morphology of the samples were characterized by X-ray diffractometry (XRD), energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM), Raman spectra, Fourier transform infrared (FTIR), and X-ray photoelectron spectroscopy (XPS). The adhesive performance of the coatings on C/C was measured by a scratch test. Finally, an in vitro bioactivity of the coatings was evaluated in a simulated body fluid solution at 37 °C. Results showed no apparent differences in the morphology and phase of the posttreated coatings, both of which are composed of a dense structure containing needle-like HA crystals. However, the HA-P/G-C/C sample possessed a higher Ca/P ratio and denser interface, thereby exhibiting higher adhesive performance and better bioactivity. The adhesive strength of the HA-P/G coating was observed at a critical load of 41.04 N, which increased by 29.3% relative to the HA coating. Moreover, the failure site was on the HA-P/G coating rather than at the interface. The enhanced adhesive performance was ascribed to the PVA/GO-repairing pits on C/C and PVA and GO toughening effects on the HA coating. In vitro and in vivo tests revealed no statistical significance for the two HA-coated C/C samples, although the HA-P/G coating exhibited better bioactivity, inducing the growth of bonelike apatite than the HA coating.
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Affiliation(s)
- Xin-Bo Xiong
- College of Materials, Shen Zhen Key Laboratory of Special Functional Materials, Shen Zhen University, Shen Zhen 518086, China
| | - Chun Liu
- Second People's Hospital of Changzhou, Nanjing Medical University, Changzhou 213003, China
| | - Xin-Ye Ni
- Second People's Hospital of Changzhou, Nanjing Medical University, Changzhou 213003, China
| | - Cai-Qing Liang
- College of Materials, Shen Zhen Key Laboratory of Special Functional Materials, Shen Zhen University, Shen Zhen 518086, China
| | - Xie-Rong Zeng
- College of Materials, Shen Zhen Key Laboratory of Special Functional Materials, Shen Zhen University, Shen Zhen 518086, China
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8
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Barbosa JS, Mendes RF, Figueira F, Gaspar VM, Mano JF, Braga SS, Rocha J, Almeida Paz FA. Bone Tissue Disorders: Healing Through Coordination Chemistry. Chemistry 2020; 26:15416-15437. [DOI: 10.1002/chem.202004529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/03/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Jéssica S. Barbosa
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
- Department of Chemistry LAQV-REQUIMTE University of Aveiro 3810-193 Aveiro Portugal
| | - Ricardo F. Mendes
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
| | - Flávio Figueira
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
| | - Vítor M. Gaspar
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
| | - João F. Mano
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
| | - Susana S. Braga
- Department of Chemistry LAQV-REQUIMTE University of Aveiro 3810-193 Aveiro Portugal
| | - João Rocha
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
| | - Filipe A. Almeida Paz
- Department of Chemistry, CICECO—Aveiro Institute of Materials University of Aveiro 3810-193 Aveiro Portugal
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9
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Li D, Wang Y, Wang C, Li S. Research on the Wear Behavior of the Fixed Cone Liner of a Cone Crusher Based on the Discrete Element Method. ACS OMEGA 2020; 5:11186-11195. [PMID: 32455242 PMCID: PMC7241016 DOI: 10.1021/acsomega.0c01272] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Accepted: 04/23/2020] [Indexed: 06/11/2023]
Abstract
Taking reducing the wear of the fixed cone liner of a cone crusher as the starting point, the movement and geometry parameters of the cone crusher are studied using the discrete element method. To improve the service life and working efficiency of the whole cone crusher. The UG model and discrete element Yade model of the cone crusher are established, and the different shapes of the tin ore are represented using Yade's preprocessor through eight different ways of particle combination and superposition. The static friction coefficient between the manganese ore and the cone crusher is studied and calibrated using the slope method. The relative error between the Yade and test results is 1.58%, and the calibration result is 0.44. The repose angle of the manganese ore is studied using the collapse method. The repose angle increases with the increase of the static friction coefficient and the dynamic friction coefficient, but the change trend is different. The effect of the dynamic friction coefficient on the repose angle is obviously greater than that of the static friction coefficient. The dynamic friction coefficient obtained by Yade is 0.042. Taking the swing distance, rotating speed, and bottom angle of the fixed cone as the orthogonal experimental factors of Yade, the regression equation of the fixed cone liner was obtained through the nonlinear processing of SPSS 25.0. According to Matlab R2017b, the influences of the swinging distance, rotating speed, and bottom angle of the fixed cone on the fixed cone liner are obtained. According to Yade's research results, the order of the influence degree of liner wear is: the rotating speed of moving cone, the swinging distance of the fixed cone, and the base angle of fixed rotation. When the swinging distance of the fixed cone is 146 mm, the rotating speed of the moving cone is 198 rpm, the fixed rotation bottom angle is 28°, and the minimum value of the liner wear is 23 mm. Yade's results are consistent with the change trend of the wear amount of the bushing obtained from the test. The research results show the correctness of using the Yade method to study the wear of the fixed cone liner of a cone crusher, which provides a theoretical basis for reducing the wear of the fixed cone liner of a cone crusher, and puts forward a new method to study the wear of relevant parts of a fixed cone crusher. At the same time, the research results are of great significance for achieving energy-saving in mining enterprises.
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Affiliation(s)
- Dasheng Li
- School
of Mechanical and Vehicular Engineering, Bengbu University, Bengbu, Anhui 233030, China
| | - Yonghai Wang
- Chankoo
Mechanical and Electrical Technology (Shanghai) Co. Ltd, Shanghai 201199, China
| | - Chao Wang
- School
of Computer Science and Technology, Xidian
University, Xi’an, Shaanxi 710071, China
| | - Sehui Li
- Shanghai
Digital Design and Research Institute, Shanghai 200082, China
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10
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Synthesis and applications of ordered and disordered mesoporous zeolites: Present and future prospective. Catal Today 2018. [DOI: 10.1016/j.cattod.2017.08.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Suo L, Jiang N, Wang Y, Wang P, Chen J, Pei X, Wang J, Wan Q. The enhancement of osseointegration using a graphene oxide/chitosan/hydroxyapatite composite coating on titanium fabricated by electrophoretic deposition. J Biomed Mater Res B Appl Biomater 2018; 107:635-645. [PMID: 29802685 DOI: 10.1002/jbm.b.34156] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/15/2018] [Accepted: 04/22/2018] [Indexed: 02/05/2023]
Abstract
Titanium (Ti) has been commonly used as an implant material in dentistry and bone surgery for several decades. Meanwhile, surface modification of titanium can enhance the osseointegration of implants. In this study, a graphene oxide/chitosan/hydroxyapatite (GO/CS/HA) composite coating was fabricated by electrophoretic deposition on Ti substrates. Subsequently, the surface morphology, phase composition, wettability, and bonding strength of this composite coating were researched. Additionally, in vitro cytological examination was performed, including evaluations of cell adhesion, cell viability, cell differentiation, cell mineralization, and osteogenetic factor expression. Finally, the in vivo osteogenetic properties were evaluated through an animal study, including a histological analysis, a microcomputed tomography, and biomechanical tests. The results showed that a homogeneous and crack-free GO/CS/HA composite coating was coated on Ti, and the wettability and bonding strength of the GO/CS/HA composite coating were enhanced compared with HA, GO/HA, and CS/HA coatings. Furthermore, the GO/CS/HA coating greatly heightened the cell-material interactions in vitro. Additionally, this GO/CS/HA-Ti implant could enhance osseointegration in vivo. Consequently, GO/CS/HA-Ti may have potential applications in the field of dental implants. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 635-645, 2019.
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Affiliation(s)
- Lai Suo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China.,Tianjin Stomatological Hospital, NanKai University, Tianjin, China
| | - Nan Jiang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yan Wang
- Yantai City Stomatological Hospital, Yantai, China
| | - Puyu Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Junyu Chen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jian Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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12
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Carradò A, Perrin-Schmitt F, Le Q, Giraudel M, Fischer C, Koenig G, Jacomine L, Behr L, Chalom A, Fiette L, Morlet A, Pourroy G. Nanoporous hydroxyapatite/sodium titanate bilayer on titanium implants for improved osteointegration. Dent Mater 2017; 33:321-332. [DOI: 10.1016/j.dental.2016.12.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 12/27/2016] [Accepted: 12/28/2016] [Indexed: 12/21/2022]
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13
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Profeta AC, Prucher GM. Bioactive-glass in periodontal surgery and implant dentistry. Dent Mater J 2017; 34:559-71. [PMID: 26438980 DOI: 10.4012/dmj.2014-233] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Bioactive-glass (B-G) is a material known for its favorable biological response when in contact with surrounding fibro-osseous tissues, due not only to an osteoconductive property, but also to an osteostimulatory capacity, and superior biocompatibility for use in human body. The objectives of this paper are to review recent studies on B-G in periodontal and implant therapy, describing its basic properties and mechanism of activity as well as discoursing about state of art and future perspective of utilization. From a demonstrated clinical benefit as bone graft for the elimination of osseous defects due to periodontal disease (intrabony/furcation defects) and surgeries (alveolar ridge preservation, maxillary sinus augmentation), to a potential use for manufacturing bioactive dental implants, possibly allowing wider case selection criteria together with improved integration rates even in the more challenging osteoporotic and medically compromised patients, this biomaterial represents an important field of study with high academic, clinical and industrial importance.
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Affiliation(s)
- Andrea Corrado Profeta
- Department of Restorative Dentistry, Biomaterials Science, Biomimetics and Biophotonics (B3) Research Group, King's College London Dental Institute
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14
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Chen J, Zhang X, Huang C, Cai H, Hu S, Wan Q, Pei X, Wang J. Osteogenic activity and antibacterial effect of porous titanium modified with metal-organic framework films. J Biomed Mater Res A 2016; 105:834-846. [PMID: 27885785 DOI: 10.1002/jbm.a.35960] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 10/30/2016] [Accepted: 11/04/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Junyu Chen
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
| | - Xin Zhang
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- College of Chemistry; Sichuan University; Chengdu, Sichuan 610041 China
| | - Chao Huang
- College of Chemistry; Sichuan University; Chengdu, Sichuan 610041 China
| | - He Cai
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
| | - Shanshan Hu
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
| | - Qianbing Wan
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
| | - Xibo Pei
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
| | - Jian Wang
- State Key Laboratory of Oral Diseases; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
- Department of Prosthodontics; West China Hospital of Stomatology, Sichuan University; Chengdu Sichuan 610041 China
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Singh RK, Awasthi S, Dhayalan A, Ferreira JMF, Kannan S. Deposition, structure, physical and invitro characteristics of Ag-doped β-Ca3(PO4)2/chitosan hybrid composite coatings on Titanium metal. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 62:692-701. [PMID: 26952474 DOI: 10.1016/j.msec.2016.02.013] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 01/28/2016] [Accepted: 02/03/2016] [Indexed: 01/06/2023]
Abstract
Pure and five silver-doped (0-5Ag) β-tricalcium phosphate [β-TCP, β-Ca3(PO4)2]/chitosan composite coatings were deposited on Titanium (Ti) substrates and their properties that are relevant for applications in hard tissue replacements were assessed. Silver, β-TCP and chitosan were combined to profit from their salient and complementary antibacterial and biocompatible features.The β-Ca3(PO4)2 powders were synthesized by co-precipitation. The characterization results confirmed the Ag(+) occupancy at the crystal lattice of β-Ca3(PO4)2. The Ag-dopedβ-Ca3(PO4)2/chitosan composite coatings deposited by electrophoresis showed good antibacterial activity and exhibited negative cytotoxic effects towards the human osteosarcoma cell line MG-63. The morphology of the coatings was observed by SEM and their efficiency against corrosion of metallic substrates was determined through potentiodynamic polarization tests.
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Affiliation(s)
- Ram Kishore Singh
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry605 014, India
| | - Sharad Awasthi
- Department of Biotechnology, Pondicherry University, Puducherry605 014, India
| | - Arunkumar Dhayalan
- Department of Biotechnology, Pondicherry University, Puducherry605 014, India
| | - J M F Ferreira
- Department of Materials and Ceramics Engineering, University of Aveiro, CICECO, Aveiro3810 193, Portugal
| | - S Kannan
- Centre for Nanoscience and Technology, Pondicherry University, Puducherry605 014, India.
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Kaur B, Srivastava R, Satpati B, Kondepudi KK, Bishnoi M. Biomineralization of hydroxyapatite in silver ion-exchanged nanocrystalline ZSM-5 zeolite using simulated body fluid. Colloids Surf B Biointerfaces 2015; 135:201-208. [DOI: 10.1016/j.colsurfb.2015.07.068] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2015] [Revised: 06/28/2015] [Accepted: 07/23/2015] [Indexed: 01/16/2023]
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17
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Huang D, Niu L, Wei Y, Guo M, Zuo Y, Zou Q, Hu Y, Chen W, Li Y. Interfacial and biological properties of the gradient coating on polyamide substrate for bone substitute. J R Soc Interface 2015; 11:rsif.2014.0101. [PMID: 25121648 DOI: 10.1098/rsif.2014.0101] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Fabrication of bioactive and mechanical matched bone substitutes is crucial for clinical application in bone defects repair. In this study, nano-hydroxyapatite/polyamide (nHA/PA) composite was coated on injection-moulded PA by a chemical corrosion and phase-inversion technique. The shear strength, gradient composition and pore structure of the bioactive coating were characterized. Osteoblast-like MG63 cells were cultured on pure PA and composite-coated PA samples. The cells' adhesion, spread and proliferation were determined using MTT assay and microscopy. The results confirm that the samples with the nHA/PA composite coating have better cytocompatibility and have no negative effects on cells. To investigate the in vivo biocompatibility, both pure PA and composite-coated PA cylinders were implanted in the trochlea of rabbit femurs and studied histologically, and the bonding ability with bone were determined using push-out tests. The results show that composite-coated implants exhibit better biocompatibility and the shear strength of the composite-coated implants with host bone at 12 weeks can reach 3.49±0.42 MPa, which is significantly higher than that of pure PA implants. These results indicate that composite-coated PA implants have excellent biocompatibility and bonding abilities with host bone and they have the potential to be applied in repair of bone defects.
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Affiliation(s)
- Di Huang
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Lulu Niu
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China
| | - Yan Wei
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China
| | - Meiqing Guo
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Qin Zou
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | - Yinchun Hu
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China
| | - Weiyi Chen
- Department of Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, College of Mechanics, Taiyuan University of Technology, Taiyuan 030024, People's Republic of China
| | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
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Calcium orthophosphate deposits: Preparation, properties and biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:272-326. [PMID: 26117762 DOI: 10.1016/j.msec.2015.05.033] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/21/2015] [Accepted: 05/08/2015] [Indexed: 01/12/2023]
Abstract
Since various interactions among cells, surrounding tissues and implanted biomaterials always occur at their interfaces, the surface properties of potential implants appear to be of paramount importance for the clinical success. In view of the fact that a limited amount of materials appear to be tolerated by living organisms, a special discipline called surface engineering was developed to initiate the desirable changes to the exterior properties of various materials but still maintaining their useful bulk performances. In 1975, this approach resulted in the introduction of a special class of artificial bone grafts, composed of various mechanically stable (consequently, suitable for load bearing applications) implantable biomaterials and/or bio-devices covered by calcium orthophosphates (CaPO4) to both improve biocompatibility and provide an adequate bonding to the adjacent bones. Over 5000 publications on this topic were published since then. Therefore, a thorough analysis of the available literature has been performed and about 50 (this number is doubled, if all possible modifications are counted) deposition techniques of CaPO4 have been revealed, systematized and described. These CaPO4 deposits (coatings, films and layers) used to improve the surface properties of various types of artificial implants are the topic of this review.
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Sun JP, Dai J, Song Y, Wang Y, Yang R. Affinity of the interface between hydroxyapatite (0001) and titanium (0001) surfaces: a first-principles investigation. ACS APPLIED MATERIALS & INTERFACES 2014; 6:20738-20751. [PMID: 25390283 DOI: 10.1021/am504734d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A basic understanding of the affinity between the hydroxyapatite (HA) and α-Ti surfaces is obtained through electronic structure calculations by first-principles method. The surface energies of HA(0001), HA (011̅0), HA (101̅1), and Ti(0001) surfaces have been calculated. The HA(0001) presents the most thermodynamically stable of HA. The HA/Ti interfaces were constructed by two kinds of interface models, the single interface (denoted as SI) and the double-interface (denoted as DI). Two methods, the full relaxation and the UBER, were applied to determine the interfacial separation and the atomic arrangement in the interfacial zone. The works of adhesion of interfaces with various stoichiometric HA surfaces were evaluated. For the HA(0001)/Ti(0001) interfaces, the work of adhesion is strongly dependent on the chemical environment of the HA surface. The values are -2.33, -1.52, and -0.80 J/m(2) for the none-, single-, and double-Ca terminated HA/Ti interfaces, respectively. The influence of atomic relaxation on the work of adhesion and interface separation is discussed. Full relaxation results include -1.99 J/m(2) work of adhesion and 0.220 nm separation between HA and Ti for the DI of 1-Ca-HA/Ti interface, while they are -1.14 J/m(2) and 0.235 nm by partial relaxation. Analysis of electronic structure reveals that charge transfer between HA and Ti slabs occurs during the formation of the HA/Ti interface. The transfer generates the Ti-O or Ti-Ca bonds across the interface and drives the HA/Ti interface system to metallic characteristic. The energetically favorable interfaces are formed when the outmost layer of HA comprises more O atoms at the interface.
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Affiliation(s)
- Jin P Sun
- School of Materials Science and Engineering, Harbin Institute of Technology at Weihai , 2 West Wenhua Road, Weihai 264209, China
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Wang J, Wang H, Wang Y, Li J, Su Z, Wei G. Alternate layer-by-layer assembly of graphene oxide nanosheets and fibrinogen nanofibers on a silicon substrate for a biomimetic three-dimensional hydroxyapatite scaffold. J Mater Chem B 2014; 2:7360-7368. [DOI: 10.1039/c4tb01324g] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Le VQ, Pourroy G, Cochis A, Rimondini L, Abdel-Fattah WI, Mohammed HI, Carradò A. Alternative technique for calcium phosphate coating on titanium alloy implants. BIOMATTER 2014; 4:e28534. [PMID: 24646569 PMCID: PMC4010538 DOI: 10.4161/biom.28534] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
As an alternative technique for calcium phosphate coating on titanium alloys, we propose to functionalize the metal surface with anionic bath containing chlorides of palladium or silver as activators. This new deposition route has several advantages such as controlled conditions, applicability to complex shapes, no adverse effect of heating, and cost effectiveness. A mixture of hydroxyapatite and calcium phosphate hydrate is deposited on the surface of Ti–6Al–4V. Calcium phosphate coating is built faster compared with the one by Simulated Body Fluid. Cell morphology and density are comparable to the control one; and the results prove no toxic compound is released into the medium during the previous seven days of immersion. Moreover, the cell viability is comparable with cells cultivated with the virgin medium. These experimental treatments allowed producing cytocompatible materials potentially applicable to manufacture implantable devices for orthopedic and oral surgeries.
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Affiliation(s)
- Van Quang Le
- Institut de Physique et Chimie des Matériaux de Strasbourg CNRS-UMR 7504; Strasbourg, France
| | - Geneviève Pourroy
- Institut de Physique et Chimie des Matériaux de Strasbourg CNRS-UMR 7504; Strasbourg, France
| | - Andrea Cochis
- Department of Health Sciences; Università del Piemonte Orientale "Amedeo Avogadro"; Novara, Italy
| | - Lia Rimondini
- Department of Health Sciences; Università del Piemonte Orientale "Amedeo Avogadro"; Novara, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali; Firenze, Italy
| | | | | | - Adele Carradò
- Institut de Physique et Chimie des Matériaux de Strasbourg CNRS-UMR 7504; Strasbourg, France
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Han Y, Wang X, Dai H, Li S. Nanosize and surface charge effects of hydroxyapatite nanoparticles on red blood cell suspensions. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4616-22. [PMID: 22860897 DOI: 10.1021/am300992x] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this paper, the effects of size and surface charge of hydroxyapatite (HAP) particles on a red blood cell (RBC) suspension were studied. Results showed that the HAP particles exhibited nanosize and surface charge effects on the RBC suspension. Differing from HAP microparticles, HAP nanoparticles induced some aggregation of the RBCs in the unstructured agglutinates. HAP nanoparticles were adhered to the surface membrane of the RBCs due to their remarkably higher adsorption capacity than the HAP microparticles, resulting in the formation of a sunken appearance ("caves") on the surface membrane of the RBCs without rupturing the lipid bilayer. In the case of high negatively charged HAP nanoparticles after heparin modification, the aggregation of the RBCs induced by the HAP nanoparticles was inhibited. Such HAP nanoparticle-induced aggregation of the RBCs could be attributed to the bridging force via the electrostatic interaction between the positively charged binding sites on the HAP surface and the negatively charged groups on the surface of the RBCs. The surface charge of the HAP nanoparticles is thus a crucial factor influencing the interaction between the HAP nanoparticles and the RBCs.
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Affiliation(s)
- Yingchao Han
- Biomedical Materials and Engineering Center, Wuhan University of Technology, Wuhan 430070, PR China.
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Dorozhkin SV. Calcium orthophosphate coatings, films and layers. Prog Biomater 2012; 1:1. [PMID: 29470670 PMCID: PMC5120666 DOI: 10.1186/2194-0517-1-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Accepted: 06/14/2012] [Indexed: 11/16/2022] Open
Abstract
In surgical disciplines, where bones have to be repaired, augmented or improved, bone substitutes are essential. Therefore, an interest has dramatically increased in application of synthetic bone grafts. As various interactions among cells, surrounding tissues and implanted biomaterials always occur at the interfaces, the surface properties of the implants are of the paramount importance in determining both the biological response to implants and the material response to the physiological conditions. Hence, a surface engineering is aimed to modify both the biomaterials, themselves, and biological responses through introducing desirable changes to the surface properties of the implants but still maintaining their bulk mechanical properties. To fulfill these requirements, a special class of artificial bone grafts has been introduced in 1976. It is composed of various mechanically stable (therefore, suitable for load bearing applications) biomaterials and/or bio-devices with calcium orthophosphate coatings, films and layers on their surfaces to both improve interactions with the surrounding tissues and provide an adequate bonding to bones. Many production techniques of calcium orthophosphate coatings, films and layers have been already invented and new promising techniques are continuously investigated. These specialized coatings, films and layers used to improve the surface properties of various types of artificial implants are the topic of this review.
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Huang D, Zuo Y, Li J, Zou Q, Zhang L, Gong M, Wang L, Li L, Li Y. Bioactive composite gradient coatings of nano-hydroxyapatite/polyamide66 fabricated on polyamide66 substrates. J R Soc Interface 2012; 9:1450-7. [PMID: 22258549 PMCID: PMC3367815 DOI: 10.1098/rsif.2011.0782] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Accepted: 12/16/2011] [Indexed: 11/12/2022] Open
Abstract
Tightly bonding of bioactive coating is the first crucial need for orthopaedic implants. This study describes a novel and convenient technique to prepare bioactive coating with high adhesion on orthopaedic substitutes made of polymeric matrix. Here, a chemical corrosion method has been adopted to fabricate a coating on the surface of injection-moulded polyamide66 (PA66) substrates by corrosive nano-hydroxyapatite/polyamide66 (n-HA/PA66) composite slurry. Scanning electron microscopy observation shows that a porous chemical corrosion region presents between the coating and dense PA66 substrate. Energy-dispersive X-ray spectroscopy analysis indicates that the chemical corrosion region is mainly composed of PA66 matrix, and the coating layer is an n-HA-rich layer. Both the pore size and n-HA composition increase gradually from the polymeric substrate towards the coating surface. Mechanical testing shows the bonding strength can reach 13.7 ± 0.2 MPa, which is much higher than that fabricated on polymeric matrix by other coating methods. The gradual transition in coating structure and composition benefits for the interface bonding and for the surface bone-bonding bioactivity. Subsequent cell experiments corroborate n-HA-rich coating and a porous structure is benefitting for cell attachment and proliferation. The convenient coating method could be popularized and applied on similar polymer implants to produce a tightly and porous bioactive coating for bone tissue regeneration.
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Affiliation(s)
| | - Yi Zuo
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
| | | | | | | | | | | | | | - Yubao Li
- Research Center for Nano-Biomaterials, Analytical and Testing Center, Sichuan University, Chengdu 610064, People's Republic of China
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Surface Engineering for Bone Implants: A Trend from Passive to Active Surfaces. COATINGS 2012. [DOI: 10.3390/coatings2030095] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Suresh K, Geetha M, Richard C, Landoulsi J, Ramasawmy H, Suwas S, Asokamani R. Effect of equal channel angular extrusion on wear and corrosion behavior of the orthopedic Ti–13Nb–13Zr alloy in simulated body fluid. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2012. [DOI: 10.1016/j.msec.2012.01.022] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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