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Liao TY, King PC, Zhu D, Crawford RJ, Ivanova EP, Thissen H, Kingshott P. Surface Characteristics and Bone Biocompatibility of Cold-Sprayed Porous Titanium on Polydimethylsiloxane Substrates. ACS Biomater Sci Eng 2023; 9:1402-1421. [PMID: 36813258 DOI: 10.1021/acsbiomaterials.2c01506] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
A variant of the cold spray (CS) technique was applied for the functionalization of polymer-based materials such as polydimethylsiloxane (PDMS) to improve the extent of mammalian cell interactions with these substrates. This was demonstrated by the embedment of porous titanium (pTi) into PDMS substrates using a single-step CS technique. CS processing parameters such as gas pressure and temperature were optimized to achieve the mechanical interlocking of pTi in the compressed PDMS to fabricate a unique hierarchical morphology possessing micro-roughness. As evidenced by the preserved porous structure, the pTi particles did not undergo any significant plastic deformation upon impact with the polymer substrate. The thickness of the particle embedment layer was determined, by cross-sectional analysis, ranging from 120 μm to over 200 μm. The behavior of osteoblast-like cells MG63 coming into contact with the pTi-embedded PDMS was examined. The results showed that the pTi-embedded PDMS samples promoted 80-96% of cell adhesion and proliferation during the early stages of incubation. The low cytotoxicity of the pTi-embedded PDMS was confirmed, with cell viability of the MG63 cells being above 90%. Furthermore, the pTi-embedded PDMS facilitated the production of alkaline phosphatase and calcium deposition in the MG63 cells, as demonstrated by the higher amount of alkaline phosphatase (2.6 times) and calcium (10.6 times) on the pTi-embedded PDMS sample fabricated at 250 °C, 3 MPa. Overall, the work demonstrated that the CS process provided flexibility in the parameters used for the production of the modified PDMS substrates and is highly efficient for the fabrication of coated polymer products. The results obtained in this study suggest that a tailorable porous and rough architecture could be achieved that promoted osteoblast function, indicating that the method has promise in the design of titanium-polymer composite materials applied to biomaterials used in musculoskeletal applications.
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Affiliation(s)
- Tzu-Ying Liao
- School of Science, Computing & Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- Australian Research Council (ARC) Training Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia
| | - Peter C King
- Australian Research Council (ARC) Training Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia
| | - Deming Zhu
- School of Science, Computing & Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
| | - Russell J Crawford
- Australian Research Council (ARC) Training Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- College of STEM, School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Elena P Ivanova
- Australian Research Council (ARC) Training Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- College of STEM, School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Helmut Thissen
- Australian Research Council (ARC) Training Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- CSIRO Manufacturing, Clayton, Victoria 3168, Australia
| | - Peter Kingshott
- School of Science, Computing & Engineering Technologies, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
- Australian Research Council (ARC) Training Centre in Surface Engineering for Advanced Materials (SEAM), Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
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Kukulka EC, de Souza JR, de Araújo JCR, de Vasconcellos LMR, Campos TMB, Thim GP, Borges ALS. Polycaprolactone/chlorinated bioglass scaffolds doped with Mg and Li ions: Morphological, physicochemical, and biological analysis. J Biomed Mater Res B Appl Biomater 2023; 111:140-150. [PMID: 35852036 DOI: 10.1002/jbm.b.35140] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/30/2022] [Accepted: 07/05/2022] [Indexed: 11/05/2022]
Abstract
The objective was to synthesize and characterize fine polycaprolactone (PCL) fibers associated with a new 58S bioglass obtained by the precipitated sol-gel route, produced by the electrospinning process in order to incorporate therapeutic ions (Mg and Li). In PCL/acetone solutions were added 7% pure bioglass, bioglass doped with Mg(NO3 )2 and Li2 CO3 and were subjected to electrospinning process. The fibers obtained were characterized morphologically, chemically and biologically. The results showed the presence of fine fibers at the nanometric scale and with diameters ranging from 0.67 to 1.92 μm among groups. Groups containing bioglass showed particles both inside and on the surface of the fibers. The components of the polymer, bioglass and therapeutic ions were present in the fibers produced. The produced fibers showed cell viability and induced the formation of mineralization nodules. It was observed the applicability of that methodology in making an improved biomaterial, which adds the osteoinductive properties of the bioglass to PCL and to those of therapeutic ions, applicable to guided bone regeneration.
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Affiliation(s)
- Elisa Camargo Kukulka
- Department of Dental Materials and Prosthesis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | - Joyce Rodrigues de Souza
- Department of Dental Materials and Prosthesis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | - Juliani Carolini Ribeiro de Araújo
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
| | | | - Gilmar Patricínio Thim
- Department of Physics, Technological Institute of Aeronautics (ITA), São José dos Campos, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthesis, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos, Brazil
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The role of nanohydroxyapatite on the morphological, physical, and biological properties of chitosan nanofibers. Clin Oral Investig 2020; 25:3095-3103. [PMID: 33047204 DOI: 10.1007/s00784-020-03633-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 10/07/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES This study aimed to evaluate the effects of nanohydroxyapatite (nHAp) particles on the morphological, chemical, physical, and biological properties of chitosan electrospun nanofibers. MATERIALS AND METHODS nHAp particles with a 1.67 Ca/P ratio were synthesized via the aqueous precipitation method, incorporated into chitosan polymer solution (0.5 wt%), and electrospun into nHAp-loaded fibers (ChHa fibers). Neat chitosan fibers (nHAp-free, Ch fibers) were used as the control. The electrospun fiber mats were characterized using morphological, topographical, chemical, thermal, and a range of biological (antibacterial, antibiofilm, cell viability, and alkaline phosphatase [ALP] activity) analyses. Data were analyzed using ANOVA and Tukey's test (α = 0.05). RESULTS ChHa fibers demonstrated a bead-like morphology, with thinner (331 ± 110 nm) and smoother (Ra = 2.9 ± 0.3 μm) distribution as compared to the control fibers. Despite showing similar cell viability and ALP activity to Ch fibers, the ChHa fibers demonstrated greater antibacterial potential against most tested bacteria (except for P. intermedia), and higher antibiofilm activity against P. gingivalis biofilm. CONCLUSIONS The incorporation of nHAp particles did not jeopardize the overall morphology, topography, physical, and biological characteristics of the chitosan nanofibers. CLINICAL RELEVANCE The combination of nHAp particles with chitosan can be used to engineer bioactive, electrospun composite nanofibers with potential applications in regenerative dentistry.
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Sato T, Mello D, Vasconcellos L, Valente AJM, Borges A. Chitosan-Based Coacervate Polymers for Propolis Encapsulation: Release and Cytotoxicity Studies. Int J Mol Sci 2020; 21:E4561. [PMID: 32604927 PMCID: PMC7352910 DOI: 10.3390/ijms21124561] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 06/24/2020] [Indexed: 02/07/2023] Open
Abstract
Chitosan-DNA (CS-DNA) and Chitosan-Pectin (CS-P) hydrogels were formulated as a sustained drug delivery carrier for drug delivery. For this, hydrogels were prepared by emulsion technique: mixing aqueous phase of the CS and DNA or P solution with benzyl alcohol using a high-performance dispersing instrument. Green Propolis (GP) was incorporated by imbibition: hydrogels were placed in GP aqueous solution (70 µg/mL) for 2 h. The specimens were freeze-dried and then characterized using different techniques. In vitro cell viability and morphology were also performed using the MG63 cell line. The presence of P was evidenced by the occurrence of a strong band at 1745 cm-1, also occurring in the blend. DNA and CS-DNA showed a strong band at 1650 cm-1, slightly shifted from the chitosan band. The sorption of GP induced a significant modification of the gel surface morphology and some phase separation occurs between chitosan and DNA. Drug release kinetics in water and in saliva follow a two-step mechanism. Significant biocompatibility revealed that these hydrogels were non-toxic and provided acceptable support for cell survival. Thus, the hydrogel complexation of chitosan with DNA and with Pectin provides favorable micro-environment for cell growth and is a viable alternative drug delivery system for Green Propolis.
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Affiliation(s)
- Tabata Sato
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, Sao Paulo State University, UNESP, Sao Paulo 12.245-700, Brazil;
| | - Daphne Mello
- Department of Bioscience and Buccal Diagnose, Institute of Science and Technology, Sao Paulo State University, UNESP, Sao Paulo 12.245-700, Brazil; (D.M.); (L.V.)
| | - Luana Vasconcellos
- Department of Bioscience and Buccal Diagnose, Institute of Science and Technology, Sao Paulo State University, UNESP, Sao Paulo 12.245-700, Brazil; (D.M.); (L.V.)
| | - Artur J. M. Valente
- Department of Chemistry, University of Coimbra, CQC, 3004-535 Coimbra, Portugal
| | - Alexandre Borges
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology, Sao Paulo State University, UNESP, Sao Paulo 12.245-700, Brazil;
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In Vitro Bone Cell Behavior on Porous Titanium Samples: Influence of Porosity by Loose Sintering and Space Holder Techniques. METALS 2020. [DOI: 10.3390/met10050696] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A great variety of powder metallurgy techniques can produce biomimetic porous titanium structures with similar mechanical properties to host bone tissue. In this work, loose sintering and space holder techniques, two frequently used metallurgical techniques, are compared to evaluate the influences of porosity (content, size, morphology and wall roughness), mechanical properties (stiffness and yield strength) and in-vitro cellular responses (adhesion and proliferation of myoblasts and osteoblasts). These comparisons are made to achieve the best balance between biomechanical and bifunctional behavior of a partial porous implant for cortical bone replacement. Cell adhesion (filopodia presence) and spreading were promoted on both porous surfaces and fully dense substrates (non-porous control surfaces). Porous scaffold samples designed using 50 vol.% NaCl space holder technique had an improved bioactive response over those obtained with the loose sintering technique due to higher roughness and scaffold pore diameter. However, the presence of large and heterogeneous pores compromises the mechanical reliability of the implant. Considering both scenarios, the substrates obtained with 40 vol.% NH4HCO3 and pore size ranges between 100 and 200 μm provide a balanced optimization of size and strength to promote in-vitro osseointegration.
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da Fonseca GF, Avelino SDOM, Mello DDCR, do Prado RF, Campos TMB, de Vasconcellos LMR, de Sousa Trichês E, Borges ALS. Scaffolds of PCL combined to bioglass: synthesis, characterization and biological performance. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:41. [PMID: 32350625 DOI: 10.1007/s10856-020-06382-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Biomaterials may be useful in filling lost bone portions in order to restore balance and improve bone regeneration. The objective of this study was to produce polycaprolactone (PCL) membranes combined with two types of bioglass (Sol-Gel and melt-quenched) and determine their physical and biological properties. Membranes were produced through electrospinning. This study presented three experimental groups: pure PCL membranes, PCL-Melt-Bioglass and PCL-Sol-gel-Bioglass. Membranes were characterized using Scanning Electron Microscopy, Fourier Transform Infrared Spectrophotometry (FTIR), Energy-Dispersive Spectroscopy and Zeta Potential. The following in vitro tests were performed: MTT assay, alkaline phosphatase activity, total protein content and mineralization nodules. Twenty-four male rats were used to observe biological performance through radiographic, fracture energy, histological and histomorphometric analyses. The physical and chemical analysis results showed success in manufacturing bioactive membranes which significantly enhanced cell viability and osteoblast differentiation. The new formed bone from the in vivo experiment was similar to that observed in the control group. In conclusion, the electrospinning enabled preparing PCL membranes with bioglass incorporated into the structure and onto the surface of PCL fibers. The microstructure of the PCL membranes was influenced by the bioglass production method. Both bioglasses seem to be promising biomaterials to improve bone tissue regeneration when incorporated into PCL.
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Affiliation(s)
- Gabriela Fernandes da Fonseca
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Sarah de Oliveira Marco Avelino
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Daphne de Camargo Reis Mello
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Renata Falchete do Prado
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil.
| | - Tiago Moreira Bastos Campos
- Technological Institute of Aeronautics (ITA), Praça Marechal Eduardo Gomes, 50 Vila das Acácias, São José dos Campos, SP, 12228-900, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
| | - Eliandra de Sousa Trichês
- Bioceramics Laboratory (BIOCERAM), Institute of Science and Technology, Federal University of São Paulo-UNIFESP, Av. Cesare Monsueto Giulio Lattes1201-Eugênio de Melo, São José dos Campos, SP, 12247-014, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Dental Materials and Prosthodontics, Institute of Science and Technology of Sao Jose dos Campos, São Paulo State University (UNESP), Av. Engenheiro José Longo, 777, Jd São Dimas, São José dos Campos, SP, 12245000, Brazil
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Mahato A, Sandy Z, Bysakh S, Hupa L, Das I, Bhattacharjee P, Kundu B, De G, Nandi SK, Vallittu P, Balla VK, Bhattacharya M. Development of nano-porous hydroxyapatite coated e-glass for potential bone-tissue engineering application: An in vitro approach. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110764. [PMID: 32279774 DOI: 10.1016/j.msec.2020.110764] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 02/15/2020] [Accepted: 02/17/2020] [Indexed: 01/29/2023]
Abstract
To reconstruct the defects caused by craniectomies autologous, bone grafting was usually used, but they failed most commonly due to bone resorption, infections and donor-site morbidity. In the present investigation, an effort has been made for the first time to check the feasibility and advantage of using hydroxyapatite (HAp) coated e-glass as component of bone implants. Sol-gel synthesized coatings were found to be purely hydroxyapatite from XRD with graded and interconnected pores all over the surface observable in TEM. The interconnected porous nature of ceramics are found to increase bioactivity by acting to up-regulate the process of osseointegration through enhanced nutrient transfer and induction of angiogenesis. From TEM studies and nano indentation studies, we have shown that pores were considered to be appropriate for nutrient supply without compromising the strength of sample while in contact with physiological fluid. After SBF immersion test, porous surface was found to be useful for nucleation of apatite crystals, hence increasing the feasibility and bioactivity of sample. However, our quasi-dynamic study showed less crystallization but had significant formation of apatite layer. Overall, the in vitro analyses show that HAp coated e-glass leads to significant improvement of implant properties in terms of biocompatibility, cell viability and proliferation, osteoinductivity and osteoconductivity. HAp coating of e-glass can potentially be utilized in fabricating durable and strong bioactive non-metallic implants and tissue engineering scaffolds.
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Affiliation(s)
- Arnab Mahato
- CSIR-Central Glass and Ceramic Research Institute (CSIR-CGCRI), Kolkata, India
| | - Zhang Sandy
- Process Chemistry Centre, ÅboAkademi University, Finland
| | - Sandip Bysakh
- CSIR-Central Glass and Ceramic Research Institute (CSIR-CGCRI), Kolkata, India
| | - Leena Hupa
- Process Chemistry Centre, ÅboAkademi University, Finland
| | - Indranee Das
- CSIR-Central Glass and Ceramic Research Institute (CSIR-CGCRI), Kolkata, India
| | | | - Biswanath Kundu
- CSIR-Central Glass and Ceramic Research Institute (CSIR-CGCRI), Kolkata, India.
| | - Goutam De
- CSIR-Central Glass and Ceramic Research Institute (CSIR-CGCRI), Kolkata, India
| | - Samit K Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences (WBUAFS), Kolkata, India
| | - Pekka Vallittu
- Institute of Dentistry and Turku Clinical Biomaterials Centre - TCBC, University of Turku, Turku, Finland
| | - Vamsi K Balla
- CSIR-Central Glass and Ceramic Research Institute (CSIR-CGCRI), Kolkata, India
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Balancing Porosity and Mechanical Properties of Titanium Samples to Favor Cellular Growth against Bacteria. METALS 2019. [DOI: 10.3390/met9101039] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two main problems limit the success of titanium implants: bacterial infection, which restricts their osseointegration capacity; and the stiffness mismatch between the implant and the host cortical bone, which promotes bone resorption and risk of fracture. Porosity incorporation may reduce this difference in stiffness but compromise biomechanical behavior. In this work, the relationship between the microstructure (content, size, and shape of pores) and the antibacterial and cellular behavior of samples fabricated by the space-holder technique (50 vol % NH4HCO3 and three ranges of particle sizes) is established. Results are discussed in terms of the best biomechanical properties and biofunctional activity balance (cell biocompatibility and antibacterial behavior). All substrates achieved suitable cell biocompatibility of premioblast and osteoblast in adhesion and proliferation processes. It is worth to highlighting that samples fabricated with the 100–200 μm space-holder present better mechanical behavior—in terms of stiffness, microhardness, and yield strength—which make them a very suitable material to replace cortical bone tissues. Those results exposed the relationship between the surface properties and the race of bacteria and mammalian cells for the surface with the aim to promote cellular growth over bacteria.
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de Vasconcellos LMR, do Prado RF, Sartori EM, Mendonça DBS, Mendonça G, Marciano FR, Lobo AO. In vitro osteogenesis process induced by hybrid nanohydroxyapatite/graphene nanoribbons composites. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:81. [PMID: 31254104 DOI: 10.1007/s10856-019-6271-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 05/18/2019] [Indexed: 06/09/2023]
Abstract
Carbon nanotubes combine high bend and mechanical strength, which is advantageous for many structural and biomedical purposes. Recently, some biomaterials, based on carbon nanostructures and nanohydroxyapatite (nHAp), have been investigated as bone substitutes in order to improve regeneration. The aim of this study was to access the expression of some RNA transcripts (involved in the process of osteoblast differentiation) by mesenchymal stem cells cultured over different nanocomposite surfaces. A multi-walled carbon nanotube (MWCNT) was firstly grown using chemical vapor deposition and then exfoliated using chemical and oxygen plasma treatments to obtain graphene nanoribbons (GNR). The hybrid composites nHAp/GNR were prepared using the wet method assisted by ultrasound irradiation with different amounts of GNR (1.0, 2.0 and 3.0 wt %). Five groups were tested in cell cultures. Group 1: synthesized nHAp; Group 2: synthesized GNR; Group 3: nHAp and 1.0% of GNR; Group 4: nHAp and 2.0% of GNR and group 5: nHAp and 3.0% of GNR. Real time reverse transcription polymerase chain reactions were performed, and all data was submitted to Kruskal Wallis and Dunn tests, at a significance level of 5%. As a result, three nanocomposites with different proportions of GNR were successfully produced. After cell culture, the expression of osteogenic genes demonstrated no significant differences among the groups and periods. However, bone morphogenetic protein II (BMP II), integrin binding sialoprotein (IBSP), and Osterix highest expressions were observed in the group containing 3.0% of GNR. In conclusion, our hybrid composites may be useful in bone interventions requiring mesenchymal stem cell differentiation into osteoblasts for healing.
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Affiliation(s)
- Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil.
| | - Renata Falchete do Prado
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, Sao Paulo State University, Av. Engenheiro Francisco José Longo, 777, São José dos Campos, SP, 12245-000, Brazil
| | - Elisa Mattias Sartori
- Department of Surgery and Integrated Clinics, School of Dentistry of Araçatuba, Sao Paulo State University, Araçatuba, Brazil
- Department of Biological and Material Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | | | - Gustavo Mendonça
- Department of Biological and Material Sciences, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Fernanda Roberta Marciano
- Scientific and Technological Institute, Universidade Brasil, Rua Carolina Fonseca, 584 - Itaquera, São Paulo, SP, 08230-030, Brazil
| | - Anderson Oliveira Lobo
- Scientific and Technological Institute, Universidade Brasil, Rua Carolina Fonseca, 584 - Itaquera, São Paulo, SP, 08230-030, Brazil.
- Interdisciplinary Laboratory for Advanced Materials, Post-graduation Program in Materials Science and Engineering, Federal University of Piauí, Teresina, PI, 64049-550, Brazil.
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Zhao Q, Yi L, Jiang L, Ma Y, Lin H, Dong J. Surface functionalization of titanium with zinc/strontium-doped titanium dioxide microporous coating via microarc oxidation. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2019; 16:149-161. [DOI: 10.1016/j.nano.2018.12.006] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 12/01/2018] [Accepted: 12/15/2018] [Indexed: 11/29/2022]
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Experimental Characterization of the Primary Stability of Acetabular Press-Fit Cups with Open-Porous Load-Bearing Structures on the Surface Layer. METALS 2018. [DOI: 10.3390/met8100839] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: Nowadays, hip cups are being used in a wide range of design versions and in an increasing number of units. Their development is progressing steadily. In contrast to conventional methods of manufacturing acetabular cups, additive methods play an increasingly central role in the development progress. Method: A series of eight modified cups were developed on the basis of a standard press-fit cup with a pole flattening and in a reduced version. The surface structures consist of repetitive open-pore load-bearing textural elements aligned right-angled to the cup surface. We used three different types of unit cells (twisted, combined and combined open structures) for constructing of the surface structure. All cups were manufactured using selective laser melting (SLM) of titanium powder (Ti6Al4V). To evaluate the primary stability of the press fit cups in the artificial bone cavity, pull-out and lever-out tests were conducted. All tests were carried out under exact fit conditions. The closed-cell polyurethane (PU) foam, which was used as an artificial bone cavity, was characterized mechanically in order to preempt any potential impact on the test results. Results and conclusions: The pull-out forces as well as the lever moments of the examined cups differ significantly depending on the elementary cells used. The best results in pull-out forces and lever-out moments are shown by the press-fit cups with a combined structure. The results for the assessment of primary stability are related to the geometry used (unit cell), the dimensions of the unit cell, and the volume and porosity responsible for the press fit. Corresponding functional relationships could be identified. The findings show that the implementation of reduced cups in a press-fit design makes sense as part of the development work.
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Martinelli NM, Ribeiro MJG, Ricci R, Marques MA, Lobo AO, Marciano FR. In Vitro Osteogenesis Stimulation via Nano-Hydroxyapatite/Carbon Nanotube Thin Films on Biomedical Stainless Steel. MATERIALS (BASEL, SWITZERLAND) 2018; 11:ma11091555. [PMID: 30158449 PMCID: PMC6164324 DOI: 10.3390/ma11091555] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 05/25/2018] [Accepted: 06/04/2018] [Indexed: 02/06/2023]
Abstract
We evaluated the electrophoretic deposition of nanohydroxyapatite/superhydrop hilic multiwalled carbon nanotube composites (nHAp/MWCNT) onto stainless steel biomedical alloys for applications in bone tissue engineering. First, nHAp/MWCNT composites were dispersed into 0.042 mol·L−1 of Ca(NO3)2·4H2O + 0.025 mol·L−1 NH4H2PO4 electrolytes (pH = 4.8) at two different concentrations. Next, a voltage of −2 V was applied using 316L stainless steel as a working electrode (0.27 cm2), a high-purity platinum coil wire was used as the auxiliary electrode, and an Ag/AgCl (3 M) electrode was used as the reference electrode. The nHAp/MWCNT composites were characterized by transmission electron microscopy. The deposited nHAp and nHAp/MWCNT films were characterized by profilometry, scanning electron microscopy, X-ray diffractometry and Raman spectroscopy. Human osteoblast cells were cultivated with the different materials and in vitro cytotoxicity was evaluated using lactate dehydrogenase (LDH) assay. The osteogenesis process was evaluated by mRNA levels of the three genes that are directly related to bone repair: Alkaline Phosphatase, Osteopontin and Osteocalcin. We showed that rough, crystalline apatite thin films containing phases of nHAp were successfully deposited onto 316L stainless steel alloys. Also, we noticed that nHAp/MWCNT thin films deposited onto 316L stainless steel alloys upregulated the expression of important genes related to bone mineralization and maturation. Our results strongly support the possibility of this new alternative to modify the surface of metallic biomedical alloys to promote bone tissue regeneration.
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Affiliation(s)
- Natalia M Martinelli
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, Bairro Urbanova, São José dos Campos, São Paulo 12244-000, Brazil.
| | - Maria Julia G Ribeiro
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, Bairro Urbanova, São José dos Campos, São Paulo 12244-000, Brazil.
| | - Ritchelli Ricci
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, Bairro Urbanova, São José dos Campos, São Paulo 12244-000, Brazil.
| | - Miller A Marques
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraíba, Av. Shishima Hifumi 2911, Bairro Urbanova, São José dos Campos, São Paulo 12244-000, Brazil.
| | - Anderson Oliveira Lobo
- Instituto de Ciência e Tecnologia, Universidade Brasil, Rua Carolina da Fonseca 584, Bairro Itaquera, São Paulo 08230-030, Brazil.
| | - Fernanda Roberta Marciano
- Instituto de Ciência e Tecnologia, Universidade Brasil, Rua Carolina da Fonseca 584, Bairro Itaquera, São Paulo 08230-030, Brazil.
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13
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Influence of Chronic Alcohol Use on Osteoblastic Differentiation of Bone Marrow Cells, Bone Properties, and Hepatic and Renal Morphology of Rats. ScientificWorldJournal 2018; 2018:2494918. [PMID: 30057490 PMCID: PMC6051045 DOI: 10.1155/2018/2494918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 11/28/2017] [Accepted: 12/14/2017] [Indexed: 12/22/2022] Open
Abstract
Chronic alcohol exposure can affect the osteoblastic activity and the proliferation and differentiation of cells due to its toxic effect, which can affect negatively bone repair and bone microarchitecture. The aim of this study was to evaluate the effects of chronic use of 20% alcohol on rats regarding osteoblastic differentiation, extrinsic and intrinsic properties of the tibia, and hepatic and renal morphology. Wistar rats were divided into three groups (n = 9) in accordance with a 24-week diet. After euthanasia, kidneys, liver, and tibias were removed for analysis and femurs mesenchymal cells were collected. The results showed that chronic use of 20% alcohol influenced neither the alkaline phosphatase production nor total protein (p > 0.05) in rats, with similar formation of nodules in all groups (p > 0.05). However, significant changes in the liver and kidneys and adverse effects on the mechanical properties of the tibia were observed. According to the results, it can be concluded that the chronic use of alcohol for 24 weeks had no negative influence on the activity and differentiation of osteoblasts, but the mechanical properties of the tibia were impaired and the organs responsible for metabolism and excretion were also affected due to the consumption of alcohol.
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14
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Graphene oxide nanoribbons as nanomaterial for bone regeneration: Effects on cytotoxicity, gene expression and bactericidal effect. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 78:341-348. [DOI: 10.1016/j.msec.2017.03.278] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 01/28/2017] [Accepted: 03/28/2017] [Indexed: 11/18/2022]
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15
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Santana-Melo GF, Rodrigues BV, da Silva E, Ricci R, Marciano FR, Webster TJ, Vasconcellos LM, Lobo AO. Electrospun ultrathin PBAT/nHAp fibers influenced the in vitro and in vivo osteogenesis and improved the mechanical properties of neoformed bone. Colloids Surf B Biointerfaces 2017; 155:544-552. [DOI: 10.1016/j.colsurfb.2017.04.053] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Revised: 03/30/2017] [Accepted: 04/24/2017] [Indexed: 02/07/2023]
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16
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Biao MN, Chen YM, Xiong SB, Wu BY, Yang BC. Synergistic effects of fibronectin and bone morphogenetic protein on the bioactivity of titanium metal. J Biomed Mater Res A 2017; 105:2485-2498. [PMID: 28498566 DOI: 10.1002/jbm.a.36106] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 04/30/2017] [Accepted: 05/05/2017] [Indexed: 01/06/2023]
Abstract
To improve the biological properties of bioactive titanium metal, recombinant human bone morphogenetic protein 2(rhBMP-2) and fibronectin (Fn) were adsorbed on its surface solely or contiguously to modify the anodic oxidized titanium (AO-Ti), acid-alkali-treated titanium (AA-Ti), and polished titanium (P-Ti). It is found that the different bioactive titanium surface structures had great influence on protein adsorption. The adsorption amounts of BMP adsorbed solely and Fn/BMP adsorbed contiguously were AA-Ti > P-Ti > AO-Ti, and that for Fn adsorbed solely was AA-Ti ≈ P-Ti > AO-Ti. The conformation of proteins was changed remarkably after the adsorption. For BMP, the α-helix decreased on AA-Ti and stabilized on P-Ti and AO-Ti. For Fn, the β-sheet on PT-Ti and AA-Ti increased significantly. For Fn/BMP, the percentage of β-sheet on AA-Ti increased, and that of α-helix on all samples was stable. MSCs showed greater adhesion and spreading on Fn/BMP groups. MTT and Elisa tests showed that the synergistic effects of proteins made the cells proliferate and differentiate faster. It indicated both the surface structure and the synergistic effects of proteins could influence the biological properties of titanium metals. It provides research foundation for improving the biological properties of bioactive titanium metals by simultaneous application of several proteins. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 105A: 2485-2498, 2017.
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Affiliation(s)
- M N Biao
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - Y M Chen
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - S B Xiong
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - B Y Wu
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
| | - B C Yang
- Engineering Research Center in Biomaterials, Sichuan University, Chengdu, Sichuan, 610064, China
- National Engineering Research Center for Biomaterials, Chengdu, Sichuan, 610064, China
- Sichuan Guojia Biomaterials Co., Ltd, Chengdu, Sichuan, 610064, China
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17
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Laser beam melting 3D printing of Ti6Al4V based porous structured dental implants: fabrication, biocompatibility analysis and photoelastic study. Sci Rep 2017; 7:45360. [PMID: 28350007 PMCID: PMC5368973 DOI: 10.1038/srep45360] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/27/2017] [Indexed: 12/24/2022] Open
Abstract
Fabricating Ti alloy based dental implants with defined porous scaffold structure is a promising strategy for improving the osteoinduction of implants. In this study, we use Laser Beam Melting (LBM) 3D printing technique to fabricate porous Ti6Al4V dental implant prototypes with three controlled pore sizes (200, 350 and 500 μm). The mechanical stress distribution in the surrounding bone tissue is characterized by photoelastography and associated finite element simulation. For in-vitro studies, experiments on implants’ biocompatibility and osteogenic capability are conducted to evaluate the cellular response correlated to the porous structure. As the preliminary results, porous structured implants show a lower stress-shielding to the surrounding bone at the implant neck and a more densed distribution at the bottom site compared to the reference implant. From the cell proliferation tests and the immunofluorescence images, 350 and 500 μm pore sized implants demonstrate a better biocompatibility in terms of cell growth, migration and adhesion. Osteogenic genes expression of the 350 μm group is significantly increased alone with the ALP activity test. All these suggest that a pore size of 350 μm provides an optimal provides an optimal potential for improving the mechanical shielding to the surrounding bones and osteoinduction of the implant itself.
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18
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Chen X, Fu Q, Jin Y, Li M, Yang R, Cui X, Gong M. In vitro studying corrosion behavior of porous titanium coating in dynamic electrolyte. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 70:1071-1075. [DOI: 10.1016/j.msec.2016.03.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/04/2016] [Accepted: 03/14/2016] [Indexed: 01/03/2023]
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19
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Silva E, Vasconcellos LMRD, Rodrigues BVM, Dos Santos DM, Campana-Filho SP, Marciano FR, Webster TJ, Lobo AO. PDLLA honeycomb-like scaffolds with a high loading of superhydrophilic graphene/multi-walled carbon nanotubes promote osteoblast in vitro functions and guided in vivo bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 73:31-39. [PMID: 28183613 DOI: 10.1016/j.msec.2016.11.075] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 10/24/2016] [Accepted: 11/21/2016] [Indexed: 12/25/2022]
Abstract
Herein, we developed honeycomb-like scaffolds by combining poly (d, l-lactic acid) (PDLLA) with a high amount of graphene/multi-walled carbon nanotube oxides (MWCNTO-GO, 50% w/w). From pristine multi-walled carbon nanotubes (MWCNT) powders, we produced MWCNTO-GO via oxygen plasma etching (OPE), which promoted their exfoliation and oxidation. Initially, we evaluated PDLLA and PDLLA/MWCNTO-GO scaffolds for tensile strength tests, cell adhesion and cell viability (with osteoblast-like MG-63 cells), alkaline phosphatase (ALP, a marker of osteoblast differentiation) activity and mineralized nodule formation. In vivo tests were carried out using PDLLA and PDLLA/MWCNTO-GO scaffolds as fillers for critical defects in the tibia of rats. MWCNTO-GO loading was responsible for decreasing the tensile strength and elongation-at-break of PDLLA scaffolds, although the high mechanical performance observed (~600MPa) assures their application in bone tissue regeneration. In vitro results showed that the scaffolds were not cytotoxic and allowed for osteoblast-like cell interactions and the formation of mineralized matrix nodules. Furthermore, MG-63 cells grown on PDLLA/MWCNTO-GO significantly enhanced osteoblast ALP activity compared to controls (cells alone), while the PDLLA group showed similar ALP activity when compared to controls and PDLLA/MWCNTO-GO. Most impressively, in vivo tests suggested that compared to PDLLA scaffolds, PDLLA/MWCNTO-GO had a superior influence on bone cell activity, promoting greater new bone formation. In summary, the results of this study highlighted that this novel scaffold (MWCNTO-GO, 50% w/w) is a promising alternative for bone tissue regeneration and, thus, should be further studied.
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Affiliation(s)
- Edmundo Silva
- Laboratory of Biomedical Nanotechnology, University of Vale do Paraiba, Av. Shishima Hifumi 2911, Sao Jose dos Campos 12224-000, São Paulo, Brazil
| | - Luana Marotta Reis de Vasconcellos
- Department of Bioscience and Oral Diagnosis, Institute of Science and Technology, State University of Sao Paulo (UNESP), Av. Engenheiro Francisco Jose Longo, 777, Sao Jose dos Campos 12245-000, SP, Brazil
| | - Bruno V M Rodrigues
- Laboratory of Biomedical Nanotechnology, University of Vale do Paraiba, Av. Shishima Hifumi 2911, Sao Jose dos Campos 12224-000, São Paulo, Brazil; Laboratory of Biomedical Nanotechnology, Biomedical Engineering Innovation Center, Universidade Brasil, Rua Carolina Fonseca 235, 08230-030, São Paulo, Brazil
| | - Danilo Martins Dos Santos
- Chemistry Institute of Sao Carlos, University of Sao Paulo, Av. Trabalhador Sao-Carlense, 400, 13566-590 Sao Carlos, SP, Brazil
| | - Sergio P Campana-Filho
- Chemistry Institute of Sao Carlos, University of Sao Paulo, Av. Trabalhador Sao-Carlense, 400, 13566-590 Sao Carlos, SP, Brazil
| | - Fernanda Roberta Marciano
- Laboratory of Biomedical Nanotechnology, University of Vale do Paraiba, Av. Shishima Hifumi 2911, Sao Jose dos Campos 12224-000, São Paulo, Brazil; Laboratory of Biomedical Nanotechnology, Biomedical Engineering Innovation Center, Universidade Brasil, Rua Carolina Fonseca 235, 08230-030, São Paulo, Brazil; Department of Medicine, Biomaterials Innovation Research Center, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA
| | - Anderson Oliveira Lobo
- Laboratory of Biomedical Nanotechnology, University of Vale do Paraiba, Av. Shishima Hifumi 2911, Sao Jose dos Campos 12224-000, São Paulo, Brazil; Laboratory of Biomedical Nanotechnology, Biomedical Engineering Innovation Center, Universidade Brasil, Rua Carolina Fonseca 235, 08230-030, São Paulo, Brazil; Department of Medicine, Biomaterials Innovation Research Center, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Department of Chemical Engineering, Northeastern University, Boston, MA 02115, USA.
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In Vitro Bioactivity Study of RGD-Coated Titanium Alloy Prothesis for Revision Total Hip Arthroplasty. BIOMED RESEARCH INTERNATIONAL 2016; 2016:8627978. [PMID: 27493968 PMCID: PMC4963553 DOI: 10.1155/2016/8627978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 04/17/2016] [Indexed: 12/19/2022]
Abstract
Total hip arthroplasty (THA) is a common procedure for the treatment of end-stage hip joint disease, and the demand for revision THA will double by 2026. Ti6Al4V (Titanium, 6% Aluminum, and 4% Vanadium) is a kind of alloy commonly used to make hip prothesis. To promote the osseointegration between the prothesis and host bone is very important for the revision THA. The peptide Arg-Gly-Asp (RGD) could increase cell attachment and has been used in the vascular tissue engineering. In this study, we combined the RGD with Ti6Al4V alloy using the covalent cross-linking method to fabricate the functional Ti6Al4V alloy (FTA). The distribution of RGD oligopeptide on the FTA was even and homogeneous. The FTA scaffolds could promote mouse osteoblasts adhesion and spreading. Furthermore, the result of RT-qPCR indicated that the FTA scaffolds were more beneficial to osteogenesis, which may be due to the improvement of osteoblast adhesion by the RGD oligopeptide coated on FTA. Overall, the FTA scaffolds developed herein pave the road for designing and building more efficient prothesis for osseointegration between the host bone and prothesis in revision THA.
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Li F, Li J, Kou H, Zhou L. Porous Ti6Al4V alloys with enhanced normalized fatigue strength for biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 60:485-488. [DOI: 10.1016/j.msec.2015.11.074] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/19/2015] [Accepted: 11/30/2015] [Indexed: 01/16/2023]
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