1
|
Kai KC, Borges R, Pedroni ACF, Pelosine AM, da Cunha MR, Marques MM, de Araújo DR, Marchi J. Tricalcium phosphate-loaded injectable hydrogel as a promising osteogenic and bactericidal teicoplanin-delivery system for osteomyelitis treatment: An in vitro and in vivo investigation. BIOMATERIALS ADVANCES 2024; 164:213966. [PMID: 39094443 DOI: 10.1016/j.bioadv.2024.213966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/25/2024] [Accepted: 07/21/2024] [Indexed: 08/04/2024]
Abstract
Osteomyelitis is an inflammation of bone tissue usually caused by pyogenic bacteria. The most recurrent clinical approach consists of bone debridement followed by parenteral administration of antibiotics. However, systemic antibiotic treatment has limitations regarding absorption rate and bioavailability over time. The main challenge of osteomyelitis treatment consists of coupling the persistent infection treatment with the regeneration of the bone debrided. In this work, we developed an injectable drug delivery system based on poloxamer 407 hydrogel containing undoped Mg, Zn-doped tricalcium phosphate (β-TCP), and teicoplanin, a broad-spectrum antibiotic. We evaluated how the addition of teicoplanin and β-TCP affected the micellization, gelation, particle size, and surface charge of the hydrogel. Later, we studied the hydrogel degradation and drug delivery kinetics. Finally, the bactericidal, biocompatibility, and osteogenic properties were evaluated through in vitro studies and confirmed by in vivo Wistar rat models. Teicoplanin was found to be encapsulated in the corona portions of the hydrogel micelles, yielding a bigger hydrodynamics radius. The encapsulated teicoplanin showed a sustained release over the evaluated period, enough to trigger antibacterial properties against Gram-positive bacteria. Besides, the formulations were biocompatible and showed bone healing ability and osteogenic properties. Finally, in vivo studies confirmed that the proposed locally injected formulations yielded osteomyelitis treatment with superior outcomes than parenteral administration while promoting bone regeneration. In conclusion, the presented formulations are promising drug delivery systems for osteomyelitis treatment and deserve further technological improvements.
Collapse
Affiliation(s)
- Karen Cristina Kai
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP, Brazil; Department of Morphology and Pathology, Jundiai Medical School, Jundiai, Brazil
| | - Roger Borges
- School of Biomedical Engineering, Faculdade Israelita de Ciências da Saúde Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, SP, Brazil.
| | | | - Agatha Maria Pelosine
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP, Brazil.
| | - Marcelo Rodrigues da Cunha
- Department of Morphology and Pathology, Jundiai Medical School, Jundiai, Brazil; Interunits Graduate Program in Bioengineering (EESC/FMRP/IQSC), University of Sao Paulo (USP), Sao Carlos, Brazil
| | - Marcia Martins Marques
- Faculdade de Odontologia, Universidade de São Paulo, São Paulo, SP, Brazil; Postgraduation Program in Dentistry, Ibirapuera University, São Paulo, Brazil.
| | - Daniele Ribeiro de Araújo
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP, Brazil.
| | - Juliana Marchi
- Centro de Ciências Naturais e Humanas (CCNH), Universidade Federal do ABC (UFABC), Campus Santo André, SP 09210-180, Brazil..
| |
Collapse
|
2
|
Rincón-López JA, Hermann-Muñoz JA, Detsch R, Rangel-López R, Muñoz-Saldaña J, Jiménez-Sandoval S, Alvarado-Orozco JM, Boccaccini AR. Mineral matrix deposition of MC3T3-E1 pre-osteoblastic cells exposed to silicocarnotite and nagelschmidtite bioceramics: In vitro comparison to hydroxyapatite. J Biomed Mater Res A 2024; 112:1124-1137. [PMID: 38433700 DOI: 10.1002/jbm.a.37699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/16/2024] [Accepted: 02/23/2024] [Indexed: 03/05/2024]
Abstract
This work presents the effect of the silicocarnotite (SC) and nagelschmidtite (Nagel) phases on in vitro osteogenesis. The known hydroxyapatite of biological origin (BHAp) was used as a standard of osteoconductive characteristics. The evaluation was carried out in conventional and osteogenic media for comparative purposes to assess the osteogenic ability of the bioceramics. First, the effect of the material on cell viability at 24 h, 7 and 14 days of incubation was evaluated. In addition, cell morphology and attachment on dense bioceramic surfaces were observed by fluorescence microscopy. Specifically, alkaline phosphatase (ALP) activity was evaluated as an osteogenic marker of the early stages of bone cell differentiation. Mineralized extracellular matrix was observed by calcium phosphate deposits and extracellular vesicle formation. Furthermore, cell phenotype determination was confirmed by scanning electron microscope. The results provided relevant information on the cell attachment, proliferation, and osteogenic differentiation processes after 7 and 14 days of incubation. Finally, it was demonstrated that SC and Nagel phases promote cell proliferation and differentiation, while the Nagel phase exhibited a superior osteoconductive behavior and could promote MC3T3-E1 cell differentiation to a higher extent than SC and BHAp, which was reflected in a higher number of deposits in a shorter period for both conventional and osteogenic media.
Collapse
Affiliation(s)
- July Andrea Rincón-López
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Queretaro, Santiago de Querétaro, Mexico
| | - Jennifer Andrea Hermann-Muñoz
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Queretaro, Santiago de Querétaro, Mexico
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Rainer Detsch
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Raúl Rangel-López
- Laboratorio de Inmunología y Virología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, San Nicolás de los Garza, Mexico
| | - Juan Muñoz-Saldaña
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Queretaro, Santiago de Querétaro, Mexico
| | - Sergio Jiménez-Sandoval
- Centro de Investigación y de Estudios Avanzados del IPN, Unidad Queretaro, Santiago de Querétaro, Mexico
| | | | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| |
Collapse
|
3
|
Gharbi A, Oudadesse H, El Feki H, Cheikhrouhou-Koubaa W, Chatzistavrou X, V Rau J, Heinämäki J, Antoniac I, Ashammakhi N, Derbel N. High Boron Content Enhances Bioactive Glass Biodegradation. J Funct Biomater 2023; 14:364. [PMID: 37504859 PMCID: PMC10381889 DOI: 10.3390/jfb14070364] [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: 05/26/2023] [Revised: 06/16/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023] Open
Abstract
Derived Hench bioactive glass (BaG) containing boron (B) is explored in this work as it plays an important role in bone development and regeneration. B was also found to enhance BaG dissociation. However, it is only possible to incorporate a limited amount of B. To increase the amount of B in BaG, bioactive borosilicate glasses (BaG-Bx) were fabricated based on the use of the solution-gelation process (sol-gel). In this work, a high B content (20 wt.%) in BaG, respecting the conditions of bioactivity and biodegradability required by Hench, was achieved for the first time. The capability of BaG-Bx to form an apatite phase was assessed in vitro by immersion in simulated body fluid (SBF). Then, the chemical structure and the morphological changes in the fabricated BaG-Bx (x = 0, 5, 10 and 20) were studied. The formation of hydroxyapatite (HAp) layer was observed with X-ray diffraction (XRD) and infrared (IR) spectroscopy. The presence of HAp layer was confirmed using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Enhanced bioactivity and chemical stability of BaG-Bx were evaluated with an ion exchange study based on Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES) and energy dispersive spectroscopy (EDS). Results indicate that by increasing the concentration of B in BaG-Bx, the crystallization rate and the quality of the newly formed HAp layer on BaG-Bx surfaces can be improved. The presence of B also leads to enhanced degradation of BaGs in SBF. Accordingly, BAG-Bx can be used for bone regeneration, especially in children, because of its faster degradation as compared to B-free glass.
Collapse
Affiliation(s)
- Amina Gharbi
- CEM Lab, National Engineering School of Sfax, Sfax University, Sfax 3018, Tunisia
- LT2S Lab, Digital Research Centre of Sfax, Technopole of Sfax, P.O. Box 275, Sfax 3000, Tunisia
| | | | - Hafedh El Feki
- Faculty of Sciences of Sfax, Sfax University, Sfax 3018, Tunisia
| | | | - Xanthippi Chatzistavrou
- Department of Chemical Engineering and Material Science, College of Engineering, Michigan State University, East Lansing, MI 48824, USA
| | - Julietta V Rau
- Istituto di Struttura della Materia, Consiglio Nazionale delle Ricerche (ISM-CNR), Via del Fosso del Cavaliere 100, 00133 Rome, Italy
- Department of Analytical, Physical and Colloid Chemistry, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Trubetskaya 8, 119991 Moscow, Russia
| | - Jyrki Heinämäki
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, 50411 Tartu, Estonia
| | - Iulian Antoniac
- Faculty of Material Science and Engineering, University Politehnica of Bucharest, SIM 313, 060042 Bucharest, Romania
| | - Nureddin Ashammakhi
- Institute for Quantitative Health Science and Engineering, Department of Biomedical Engineering, College of Engineering and College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Department of Bioengineering, University of California, Los Angeles, CA 90095, USA
| | - Nabil Derbel
- CEM Lab, National Engineering School of Sfax, Sfax University, Sfax 3018, Tunisia
| |
Collapse
|
4
|
Marchenko ES, Baigonakova GA, Dubovikov KM, Kokorev OV, Gordienko II, Chudinova EA. Properties of Coatings Based on Calcium Phosphate and Their Effect on Cytocompatibility and Bioactivity of Titanium Nickelide. MATERIALS (BASEL, SWITZERLAND) 2023; 16:2581. [PMID: 37048875 PMCID: PMC10095358 DOI: 10.3390/ma16072581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 06/19/2023]
Abstract
Coatings based on calcium phosphate with thicknesses of 0.5 and 2 μm were obtained by high-frequency magnetron sputtering on NiTi substrates in an argon atmosphere. The coating was characterized using X-ray diffraction, scanning electron microscopy, atomic force microscopy, and in vitro cytocompatibility and bioactivity studies. A biphasic coating of tricalcium phosphate (Ca3(PO4)2) and hydroxyapatite (Ca10(PO4)6(OH)2) with a 100% degree of crystallinity was formed on the surface. The layer enriched in calcium, phosphorus, and oxygen was observed using scanning electron microscopy and energy-dispersive X-ray spectroscopy. Scanning electron microscopy showed that the surface structure is homogeneous without visible defects. The 2 µm thick coating obtained by sputtering with a deposition time of 4 h and a deposition rate of 0.43 µm/h is uniform, contains the highest amount of the calcium phosphate phase, and is most suitable for the faster growth of cells and accelerated formation of apatite layers. Samples with calcium phosphate coatings do not cause hemolysis and have a low cytotoxicity index. The results of immersion in a solution simulating body fluid show that NiTi with the biphasic coating promotes apatite growth, which is beneficial for biological activity.
Collapse
Affiliation(s)
- Ekaterina S. Marchenko
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Gulsharat A. Baigonakova
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Kirill M. Dubovikov
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Oleg V. Kokorev
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| | - Ivan I. Gordienko
- Department of Pediatric Surgery, Ural State Medical University, 620014 Yekaterinburg, Russia
| | - Ekaterina A. Chudinova
- Laboratory of Superelastic Biointerfaces, National Research Tomsk State University, 36 Lenin Ave., 634045 Tomsk, Russia
| |
Collapse
|
5
|
Trzaskowska M, Vivcharenko V, Przekora A. The Impact of Hydroxyapatite Sintering Temperature on Its Microstructural, Mechanical, and Biological Properties. Int J Mol Sci 2023; 24:ijms24065083. [PMID: 36982158 PMCID: PMC10049015 DOI: 10.3390/ijms24065083] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/22/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023] Open
Abstract
Hydroxyapatite (HA), the principal mineral of bone tissue, can be fabricated as an artificial calcium phosphate (CaP) ceramic and potentially used as bioceramic material for bone defect treatment. Nevertheless, the production method (including the applied sintering temperature) of synthetic hydroxyapatite directly affects its basic properties, such as its microstructure, mechanical parameters, bioabsorbability, and osteoconductivity, and in turn influences its biomedical potential as an implantable biomaterial. The wide application of HA in regenerative medicine makes it necessary to explain the validity of the selection of the sintering temperature. The main emphasis of this article is on the description and summarization of the key features of HA depending on the applied sintering temperature during the synthesis process. The review is mainly focused on the dependence between the HA sintering temperature and its microstructural features, mechanical properties, biodegradability/bioabsorbability, bioactivity, and biocompatibility.
Collapse
|
6
|
Erdem U, Dogan D, Bozer BM, Karaboga S, Turkoz MB, Metin AÜ, Yıldırım G. Evolution of dynamics of physico-chemical and mechanical properties of hydroxyapatite with fluorine addition and degradation stability of new matrices. J Mech Behav Biomed Mater 2022; 135:105454. [PMID: 36115175 DOI: 10.1016/j.jmbbm.2022.105454] [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: 07/20/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/26/2022]
Abstract
This multidisciplinary study examined sensitively the change in the dynamics of main mechanical performance, stability of crystal structure, crystallinity quality, strength, corrosion resistance, biocompatibility, resistance to structural degradation/separations and mechanical durability features of hydroxyapatite (HAp) biomedical materials based on the fluorine addition and degradation process to guide future medical and dental treatment studies. In the study, the fluorine ions were used to be the dental coating, filling and supporting material for biologically or synthetically produced bone minerals. The general characteristic properties were investigated by means of standard spectroscopic, structural and mechanical analysis methods including RAMAN, SEM-EDS, TEM, Vickers micro-indentation hardness and density measurements. A time dependent release test was performed to evaluate possible fluorine ion release after the degradation process. It was found that the fundamental characteristic properties of HAp biomedical materials are noted to improve with the increase in the fluoride level up to 2% due much more stabilization of HAp crystal system. The combination of RAMAN spectra and powder XRD analyzes indicates that 2% addition level affects positively the formation velocity of characteristic HAP phase. Besides, fluorine doped HAp materials all exhibited the main characteristic peaks after degradation process. This is attributed to the fact that the fluorine ions enabled the hydroxyapatite to enhance the structural quality and stability towards the corrosion environment. However, in case of excess dopant level of 3% the degradation rates were obtained to increase due to higher contribution rate and especially electrostatic interactions. As for the surface morphology examinations, 2% fluorine added HAp with the highest density of 3.0879 g/cm3 was determined to present the superior crystallinity quality (smallest grain size, best smooth surface, honeycomb pattern, regular shaped particles and densest particle distributions through the specimen surface). Conversely, the excess fluorine triggered to increase seriously degree of micro/macro porosity in the surface morphology and microscopic structural problems in the crystal system. Thus, the HAp doped with 3% was the most affected material from the degradation process. Additionally, the fluorine ion values read after the release process were quite far from the value that could cause toxic effects. Lastly, the optimum fluorine addition provides the positive effects on the highest durability, stiffness and mechanical fracture strength properties as a consequence of differentiation in the surface residual compressive stress regions (lattice strain fields), amplification sites and active operable slip systems in the matrix. Hence, the crack propagations prefer to proceed in the transcrystalline regions rather than the intergranular parts. Similarly, it was found that Vickers micro-indentation hardness tests showed that the microhardness parameters increased after the degradation process. All in all, the fluorine addition level of 2% was noted to be good choice to improve the fundamental characteristic properties of hydroxyapatite biomedical materials for heavy-duty musculoskeletal, orthopedic implant, biological and therapeutic applications in medicine and dentistry application fields.
Collapse
Affiliation(s)
- Umit Erdem
- Kirikkale University, Scientific and Tech. Research Center, 71450, Kirikkale, Turkey.
| | - Deniz Dogan
- Kirikkkale University, Faculty of Science and Literature, Department of Chemistry, 71450, Kirikkale, Turkey
| | - Büsra Moran Bozer
- Hitit University, Scientific Technical App. and Research Center, Corum, 19030, Turkey
| | - Seda Karaboga
- Abant Izzet Baysal University, Faculty of Science, Department of Chemisrty, 14280, Bolu, Turkey
| | - Mustafa Burak Turkoz
- Karabuk University, Faculty of Engineering, Electric and Electronics Engineering, 78050, Karabuk, Turkey
| | - Ayşegül Ülkü Metin
- Kirikkkale University, Faculty of Science and Literature, Department of Chemistry, 71450, Kirikkale, Turkey
| | - Gurcan Yıldırım
- Abant Izzet Baysal University, Faculty of Engineering, Mechanical Engineering, 14280, Bolu, Turkey
| |
Collapse
|
7
|
Medrano-David D, Lopera AM, Londoño ME, Araque-Marín P. Formulation and Characterization of a New Injectable Bone Substitute Composed PVA/Borax/CaCO 3 and Demineralized Bone Matrix. J Funct Biomater 2021; 12:46. [PMID: 34449632 PMCID: PMC8395841 DOI: 10.3390/jfb12030046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/30/2021] [Accepted: 08/04/2021] [Indexed: 12/22/2022] Open
Abstract
The occurrence of bone-related disorders and diseases has dramatically increased in recent years around the world. Demineralized bone matrix (DBM) has been widely used as a bone implant due to its osteoinduction and bioactivity. However, the use of DBM is limited because it is a particulate material, which makes it difficult to manipulate and implant with precision. In addition, these particles are susceptible to migration to other sites. To address this situation, DBM is commonly incorporated into a variety of carriers. An injectable scaffold has advantages over bone grafts or preformed scaffolds, such as the ability to flow and fill a bone defect. The aim of this research was to develop a DBM carrier with such viscoelastic properties in order to obtain an injectable bone substitute (IBS). The developed DBM carrier consisted of a PVA/glycerol network cross-linked with borax and reinforced with CaCO3 as a pH neutralizer, porosity generator, and source of Ca. The physicochemical properties were determined by an injectability test, FTIR, SEM, and TGA. Porosity, degradation, bioactivity, possible cytotoxic effect, and proliferation in osteoblasts were also determined. The results showed that the developed material has great potential to be used in bone tissue regeneration.
Collapse
Affiliation(s)
- Daniela Medrano-David
- Research Group GIBEC, Life Sciences Faculty, EIA University, Envigado 055420, Colombia; (A.M.L.); (M.E.L.)
| | - Aura María Lopera
- Research Group GIBEC, Life Sciences Faculty, EIA University, Envigado 055420, Colombia; (A.M.L.); (M.E.L.)
| | - Martha Elena Londoño
- Research Group GIBEC, Life Sciences Faculty, EIA University, Envigado 055420, Colombia; (A.M.L.); (M.E.L.)
| | - Pedronel Araque-Marín
- Research and Innovation Group in Chemical Formulations, Life Sciences Faculty, EIA University, Envigado 055420, Colombia;
- CECOLTEC, Medellín 050022, Colombia
| |
Collapse
|
8
|
Xiang Z, Wu Q, Wang Y, Wang P, He Y, Li J. eIF2α-ATF4 Pathway Activated by a Change in the Calcium Environment Participates in BCP-Mediated Bone Regeneration. ACS Biomater Sci Eng 2021; 7:3256-3268. [PMID: 34191473 DOI: 10.1021/acsbiomaterials.0c01802] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Biphasic calcium phosphate (BCP) ceramic is a classic bone void filler and a common basis of new materials for bone defect repair. However, the specific mechanism of BCP in osteogenesis has not been fully elucidated. Endoplasmic reticulum stress (ERs) and the subsequent PERK-eIF2α-ATF4 pathway can be activated by various factors, including trauma and intracellular calcium changes, and therefore worth exploring as a potential mechanism in BCP-mediated bone repair. Herein, a rat lateral femoral epicondyle defect model in vivo and a simulated BCP-mediated calcium environment in vitro were constructed for the analysis of BCP-related osteogenesis and the activation of ERs and the eIF2α-ATF4 pathway. An inhibitor of eIF2α dephosphorylation (salubrinal) was also used to explore the effect of the eIF2α-ATF4 pathway on BCP-mediated bone regeneration. The results showed that the ERs and eIF2α-ATF4 pathway activation were observed during 4 weeks of bone repair, with a rapid but brief increase immediately after artificial defect surgery and a re-increase after 4 weeks with the resorption of BCP materials. Mild ERs and the activated eIF2α induced by the calcium changes mediated by BCP regulated the expression of osteogenic-related proteins and had an important role during the defect repair. In conclusion, the eIF2α-ATF4 pathway activated by a change in the calcium environment participates in BCP-mediated bone regeneration. eIF2α-ATF4 and ERs could provide new directions for further studies on new materials in bone tissue engineering.
Collapse
Affiliation(s)
- Zichao Xiang
- West China Hospital of Stomatology, School of Stomatology, State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610000, China.,The Affiliated Hospital of Stomatology, School of Stomatology, and Key Laboratory of Oral Biomedical Research of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - Qionghui Wu
- West China Hospital of Stomatology, School of Stomatology, State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610000, China
| | - Yu Wang
- West China Hospital of Stomatology, School of Stomatology, State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610000, China.,The Affiliated Stomatological Hospital of Guizhou Medical University, Guiyang 550001, China
| | - Peng Wang
- West China Hospital of Stomatology, School of Stomatology, State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610000, China
| | - Yingyou He
- West China Hospital of Stomatology, School of Stomatology, State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610000, China
| | - Jihua Li
- West China Hospital of Stomatology, School of Stomatology, State Key Laboratory of Oral Diseases, and National Clinical Research Center for Oral Diseases, Sichuan University, Chengdu 610000, China
| |
Collapse
|
9
|
Griffin DM, Kennedy MA, Bhatia SR. Calcium phosphate nanocomposites via in situ mineralization in block copolymer hydrogels. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- David M. Griffin
- Department of Chemical Engineering University of Massachusetts Amherst Amherst Massachusetts USA
- Department of Chemical and Petroleum Engineering University of Kansas Lawrence Kansas USA
| | | | - Surita R. Bhatia
- Department of Chemistry Stony Brook University Stony Brook New York USA
| |
Collapse
|
10
|
Maharjan B, Kaliannagounder VK, Jang SR, Awasthi GP, Bhattarai DP, Choukrani G, Park CH, Kim CS. In-situ polymerized polypyrrole nanoparticles immobilized poly(ε-caprolactone) electrospun conductive scaffolds for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:111056. [DOI: 10.1016/j.msec.2020.111056] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 04/10/2020] [Accepted: 05/04/2020] [Indexed: 12/28/2022]
|
11
|
Boehm AV, Meininger S, Gbureck U, Müller FA. Self-healing capacity of fiber-reinforced calcium phosphate cements. Sci Rep 2020; 10:9430. [PMID: 32523063 PMCID: PMC7287135 DOI: 10.1038/s41598-020-66207-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/15/2020] [Indexed: 11/23/2022] Open
Abstract
A major problem concerning the mechanical properties of calcium phosphate cements (CPC) is related to their inherent brittleness, which limits their applicability to non-load bearing bone defects. In this work the preparation of a damage tolerant CPC is presented, where the incorporation of functionalized carbon fibers facilitates steady state flat crack propagation with crack openings below 10 µm. A subsequent self-healing process in simulated body fluid, that mimics the in vivo mineralization of bioactive surfaces, closes the cracks and completely restores the mechanical properties. Hereby, two pathways of self-healing are presented: i) intrinsic healing that bases on the inherent bioactive properties of the cement matrix and chemically treated fibers, and ii) capsule based extrinsic healing, where H2PO4- is released as an initiator for the apatite formation. Such damage tolerant CPCs with self-healing capacity are of particular interest to increase the lifetime of implants as well as in the field of load-bearing bioceramics.
Collapse
Affiliation(s)
- Anne V Boehm
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743, Jena, Germany
| | - Susanne Meininger
- Department for Functional Materials in Medicine and Dentistry (FMZ), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry (FMZ), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Frank A Müller
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743, Jena, Germany.
| |
Collapse
|
12
|
Roles of strontium and hierarchy structure on the in vitro biological response and drug release mechanism of the strontium-substituted bioactive glass microspheres. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 107:110336. [DOI: 10.1016/j.msec.2019.110336] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 09/27/2019] [Accepted: 10/16/2019] [Indexed: 02/07/2023]
|
13
|
Chen Q, Zou B, Lai Q, Wang Y, Xue R, Xing H, Fu X, Huang C, Yao P. A study on biosafety of HAP ceramic prepared by SLA-3D printing technology directly. J Mech Behav Biomed Mater 2019; 98:327-335. [PMID: 31302582 DOI: 10.1016/j.jmbbm.2019.06.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/27/2019] [Accepted: 06/30/2019] [Indexed: 12/20/2022]
Abstract
Hydroxyapatite powder was mixed into photosensitive resin to form complex shape scaffold using SLA-3D printing technology, and then the final entity was obtained successively by debinding and sintering. It is crucial to confirm whether the prepared hydroxyapatite scaffold have the toxic effects after our designed printing, debinding, and sintering processes because the photosensitive resin in the starting printing paste is poisonous to cells. To investigate these issues in details, thermogravimetric analysis (TG), differential scanning calorimetry (DSC), in vitro cytotoxicity test, and implantation pre-experiment in the rabbit parietal were performed, aiming to develop the SLA-3D prepared hydroxyapatite scaffold. Through thermal analysis, it was proved that photosensitive resin would be completely pyrolyzed at temperature ranging from 350 °C to 580 °C, corresponding to a secondary chemical reaction mechanism. Combined with cytotoxicity test results, it is unquestionable that the toxic substances would be totally decomposed after debinding process and a good biocompatible HAP samples could be obtained. The finally prepared HAP samples with micro-holes showed good biosafety in pre-experiment of the rabbit parietal implantation.
Collapse
Affiliation(s)
- Qinghua Chen
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Bin Zou
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China.
| | - Qingguo Lai
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China.
| | - Yang Wang
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China
| | - Runqi Xue
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China
| | - Hongyu Xing
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Xiangsong Fu
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Chuanzhen Huang
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Peng Yao
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| |
Collapse
|
14
|
Silicon-Substituted Hydroxyapatite Particles and Response of Adipose Stem Cells In Vitro. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2019. [DOI: 10.1007/s40883-019-00108-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
15
|
Liu J, Liao J, Li Y, Yang Z, Ying Q, Xie Y, Zhou A. Bioactive tetracalcium phosphate/magnesium phosphate composite bone cement for bone repair. J Biomater Appl 2019; 34:239-249. [PMID: 31042122 DOI: 10.1177/0885328219845597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Jingxian Liu
- 1 School Hospital, Henan Polytechnic University, Jiaozuo, China
| | - Jianguo Liao
- 2 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, China
| | - Yanqun Li
- 3 Henan TUORen Medical Group Co. LTD, Xinxiang, China
| | - Zhengpeng Yang
- 2 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, China
| | - Qiwei Ying
- 2 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, China
| | - Yufen Xie
- 2 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, China
| | - Aiguo Zhou
- 2 School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo, China
| |
Collapse
|
16
|
Shih YV, Varghese S. Tissue engineered bone mimetics to study bone disorders ex vivo: Role of bioinspired materials. Biomaterials 2019; 198:107-121. [PMID: 29903640 PMCID: PMC6281816 DOI: 10.1016/j.biomaterials.2018.06.005] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/25/2018] [Accepted: 06/05/2018] [Indexed: 12/15/2022]
Abstract
Recent advances in materials development and tissue engineering has resulted in a substantial number of bioinspired materials that recapitulate cardinal features of bone extracellular matrix (ECM) such as dynamic inorganic and organic environment(s), hierarchical organization, and topographical features. Bone mimicking materials, as defined by its self-explanatory term, are developed based on the current understandings of the natural bone ECM during development, remodeling, and fracture repair. Compared to conventional plastic cultures, biomaterials that resemble some aspects of the native environment could elicit a more natural molecular and cellular response relevant to the bone tissue. Although current bioinspired materials are mainly developed to assist tissue repair or engineer bone tissues, such materials could nevertheless be applied to model various skeletal diseases in vitro. This review summarizes the use of bioinspired materials for bone tissue engineering, and their potential to model diseases of bone development and remodeling ex vivo. We largely focus on biomaterials, designed to re-create different aspects of the chemical and physical cues of native bone ECM. Employing these bone-inspired materials and tissue engineered bone surrogates to study bone diseases has tremendous potential and will provide a closer portrayal of disease progression and maintenance, both at the cellular and tissue level. We also briefly touch upon the application of patient-derived stem cells and introduce emerging technologies such as organ-on-chip in disease modeling. Faithful recapitulation of disease pathologies will not only offer novel insights into diseases, but also lead to enabling technologies for drug discovery and new approaches for cell-based therapies.
Collapse
Affiliation(s)
- Yuru Vernon Shih
- Department of Orthopaedic Surgery, Duke University, Durham, NC 27710, USA.
| | - Shyni Varghese
- Department of Orthopaedic Surgery, Duke University, Durham, NC 27710, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA; Department of Materials Science and Engineering, Duke University, Durham, NC 27710, USA.
| |
Collapse
|
17
|
Kelder C, Bakker AD, Klein-Nulend J, Wismeijer D. The 3D Printing of Calcium Phosphate with K-Carrageenan under Conditions Permitting the Incorporation of Biological Components-A Method. J Funct Biomater 2018; 9:E57. [PMID: 30336547 PMCID: PMC6306897 DOI: 10.3390/jfb9040057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/06/2018] [Accepted: 10/11/2018] [Indexed: 12/15/2022] Open
Abstract
Critical-size bone defects are a common clinical problem. The golden standard to treat these defects is autologous bone grafting. Besides the limitations of availability and co-morbidity, autografts have to be manually adapted to fit in the defect, which might result in a sub-optimal fit and impaired healing. Scaffolds with precise dimensions can be created using 3-dimensional (3D) printing, enabling the production of patient-specific, 'tailor-made' bone substitutes with an exact fit. Calcium phosphate (CaP) is a popular material for bone tissue engineering due to its biocompatibility, osteoconductivity, and biodegradable properties. To enhance bone formation, a bioactive 3D-printed CaP scaffold can be created by combining the printed CaP scaffold with biological components such as growth factors and cytokines, e.g., vascular endothelial growth factor (VEGF), bone morphogenetic protein-2 (BMP-2), and interleukin-6 (IL-6). However, the 3D-printing of CaP with a biological component is challenging since production techniques often use high temperatures or aggressive chemicals, which hinders/inactivates the bioactivity of the incorporated biological components. Therefore, in our laboratory, we routinely perform extrusion-based 3D-printing with a biological binder at room temperature to create porous scaffolds for bone healing. In this method paper, we describe in detail a 3D-printing procedure for CaP paste with K-carrageenan as a biological binder.
Collapse
Affiliation(s)
- Cindy Kelder
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Astrid Diana Bakker
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Daniël Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| |
Collapse
|
18
|
Tastepe CS, Lin X, Werner A, Donnet M, Wismeijer D, Liu Y. Cleaning effect of osteoconductive powder abrasive treatment on explanted human implants and biofilm-coated titanium discs. Clin Exp Dent Res 2018; 4:25-34. [PMID: 29744212 PMCID: PMC5813889 DOI: 10.1002/cre2.100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/02/2017] [Accepted: 11/30/2017] [Indexed: 11/10/2022] Open
Abstract
The aim of this study is to test the cleaning effect and surface modification of a new implant surface treatment on explanted dental implants and titanium discs. It is a modified air powder abrasive (APA) treatment applied using osteoconductive powders. Twenty-eight in vitro Ca-precipitated organic film-coated titanium discs and 13 explanted dental implants were treated. In a 2-step approach, 3 powders were used: hydroxylapatite (HA) and biomimetic calcium phosphate (BioCaP), which are osteoconductive, and erythritol, which is not. APA treatment was applied. (Air pressure: 2.4 bar; water flow for cleaning: 41.5 ml/min, for Coating 1: 2.1 ml/min, and for Coating 2: 15.2 ml/min.) The test groups were as follows: Group 1: HA cleaning + BioCaP Coating 1; Group 2: HA cleaning + BioCaP Coating 2; Group 3: erythritol cleaning + BioCaP Coating 1; Group 4: erythritol cleaning + BioCaP Coating 2; Group 5: HA cleaning; Group 6: erythritol cleaning; and control: no powder. Cleaned areas were calculated by point counting method. Surface changes and chemical content were evaluated using light microscopy, scanning electron microscopy, and energy-dispersive X-ray spectroscopy. Cleaning effect between groups was compared by a pairwise Student's t test. The significance level was fixed at p < .05. Cleaning effect on the discs was 100% in all test groups and 5% in the control. Powder particles in varying size and shape were embedded on the surface. All HA- or CaP-treated surfaces showed Ca and P content but no surface damage. Calcified biofilm remnants were removed from the implant surface by the test groups, whereas in control groups, they remained. APA treatment with CaP and HA powders under clinically applicable pressure settings gives positive results in vitro; therefore, they could be promising when used in vivo.
Collapse
Affiliation(s)
- Ceylin S. Tastepe
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit Amsterdam
| | - Xingnan Lin
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit Amsterdam
- Affiliated Stomatological Hospital of Medical SchoolNanjing University, Department of OrthodonticsNanjingChina
| | - Arie Werner
- Department of Dental Material Sciences, Academic Centre for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit Amsterdam
| | - Marcel Donnet
- Research Group, DentalE.M.S. Electro Medical Systems S.A.Switzerland
| | - Daniel Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit Amsterdam
| | - Yuelian Liu
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA)University of Amsterdam and Vrije Universiteit Amsterdam
| |
Collapse
|
19
|
Vladescu A, Mihai Cotrut C, Ak Azem F, Bramowicz M, Pana I, Braic V, Birlik I, Kiss A, Braic M, Abdulgader R, Booysen R, Kulesza S, Monsees TK. Sputtered Si and Mg doped hydroxyapatite for biomedical applications. Biomed Mater 2018; 13:025011. [DOI: 10.1088/1748-605x/aa9718] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
20
|
Kien PT, Phu HD, Linh NVV, Quyen TN, Hoa NT. Recent Trends in Hydroxyapatite (HA) Synthesis and the Synthesis Report of Nanostructure HA by Hydrothermal Reaction. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:343-354. [PMID: 30357697 DOI: 10.1007/978-981-13-0947-2_18] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This research summary the trend in synthesis of Hydroxyapatite (HA) using different route such as dry method and wet method (co-precipitation method; emulsion method, hydrolysis method, sol-gel method, hydrothermal method). In addition, the research group also report the technique to synthesis nano-structure HA by hydrothermal reaction using Ca(OH)2 and H3PO4 with the Ca/P molar ratio of 1.67. The mixture after homogenized for 2 h, follow by hydrothermal reaction at different hydrothermal temperature time (100 °C, 150 °C, and 180 °C) and different hydrothermal reaction time (0 h, 12 h and 24 h). The 180 °C-hydrothermal treated-HA has needle-like shape with the diameter of 10 ~ 20 nm and length of below 100 nm, which is similar with human bone. For the hydrothermal reaction, temperature is the key to form nanostructure HA.
Collapse
Affiliation(s)
- Pham Trung Kien
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University (VNU-HCM), Ho Chi Minh City, Vietnam.
| | - Huynh Dai Phu
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University (VNU-HCM), Ho Chi Minh City, Vietnam.,National Key Lab for Polymer and Composite Materials, HCMUT, Ho Chi Minh City, Vietnam
| | - Nguyen Vu Viet Linh
- Faculty of Materials Technology, Ho Chi Minh City University of Technology (HCMUT), Vietnam National University (VNU-HCM), Ho Chi Minh City, Vietnam.,National Key Lab for Polymer and Composite Materials, HCMUT, Ho Chi Minh City, Vietnam
| | - Tran Ngoc Quyen
- Graduate School of Science and Technology, Department of Pharmacy and Medicine, Vietnam Academy of Science and Technology, Ho Chi Minh City, Vietnam
| | - Nguyen Thai Hoa
- Key Lab for Materials Technology, Ho Chi Minh City University of Technology, Ho Chi Minh City, Vietnam
| |
Collapse
|
21
|
Li X, Deng Y, Wang M, Chen X, Xiao Y, Zhang X. Stabilization of Ca-deficient hydroxyapatite in biphasic calcium phosphate ceramics by adding alginate to enhance their biological performances. J Mater Chem B 2018; 6:84-97. [DOI: 10.1039/c7tb02620j] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
It is of significance to further improve the bioactivity of existing calcium phosphate (Ca–P) biomaterials to satisfy the needs of regenerative medicine.
Collapse
Affiliation(s)
- Xiangfeng Li
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Yanglong Deng
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Menglu Wang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Yumei Xiao
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu 610064
- China
| |
Collapse
|
22
|
|
23
|
Sugiura Y, Tsuru K, Ishikawa K. "Fabrication of arbitrarily shaped carbonate apatite foam based on the interlocking process of dicalcium hydrogen phosphate dihydrate". JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:122. [PMID: 28689353 DOI: 10.1007/s10856-017-5937-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 06/23/2017] [Indexed: 06/07/2023]
Abstract
Carbonate apatite (CO3Ap) foam with an interconnected porous structure is highly attractive as a scaffold for bone replacement. In this study, arbitrarily shaped CO3Ap foam was formed from α-tricalcium phosphate (α-TCP) foam granules via a two-step process involving treatment with acidic calcium phosphate solution followed by hydrothermal treatment with NaHCO3. The treatment with acidic calcium phosphate solution, which is key to fabricating arbitrarily shaped CO3Ap foam, enables dicalcium hydrogen phosphate dihydrate (DCPD) crystals to form on the α-TCP foam granules. The generated DCPD crystals cause the α-TCP granules to interlock with each other, inducing an α-TCP/DCPD foam. The interlocking structure containing DCPD crystals can survive hydrothermal treatment with NaHCO3. The arbitrarily shaped CO3Ap foam was fabricated from the α-TCP/DCPD foam via hydrothermal treatment at 200 °C for 24 h in the presence of a large amount of NaHCO3.
Collapse
Affiliation(s)
- Yuki Sugiura
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan.
| | - Kanji Tsuru
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| | - Kunio Ishikawa
- Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka, 812-8582, Japan
| |
Collapse
|
24
|
Zhai J, Wang Q, Zeng J, Chen J, Yi X, Shi Z, Tan G, Yu P, Ning C. Spatial charge manipulated set-selective apatite deposition on micropatterned piezoceramic. RSC Adv 2017. [DOI: 10.1039/c7ra04226d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Apatite was selectively deposited with the manipulation of spatial charge on the micropatterned piezoelectric K0.5Na0.5NbO3.
Collapse
Affiliation(s)
- Jinxia Zhai
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- China
- Key Laboratory of Biomedical Sciences and Engineering
| | - Qiyou Wang
- Department of Spine Surgery
- The Third Affiliated Hospital of Sun Yat-sen University
- Guangzhou
- China
| | | | - Junqi Chen
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- China
- Key Laboratory of Biomedical Sciences and Engineering
| | - Xin Yi
- School of Medicine
- South China University of Technology
- Guangzhou
- China
- Key Laboratory of Biomedical Sciences and Engineering
| | - Zhifeng Shi
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- China
- Key Laboratory of Biomedical Sciences and Engineering
| | - Guoxin Tan
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou
- China
| | - Peng Yu
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- China
- Key Laboratory of Biomedical Sciences and Engineering
| | - Chengyun Ning
- College of Materials Science and Engineering
- South China University of Technology
- Guangzhou
- China
- Key Laboratory of Biomedical Sciences and Engineering
| |
Collapse
|
25
|
Stähli C, Thüring J, Galea L, Tadier S, Bohner M, Döbelin N. Hydrogen-substituted β-tricalcium phosphate synthesized in organic media. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2016; 72:875-884. [PMID: 27910838 PMCID: PMC5134762 DOI: 10.1107/s2052520616015675] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/04/2016] [Indexed: 06/06/2023]
Abstract
β-Tricalcium phosphate (β-TCP) platelets synthesized in ethylene glycol offer interesting geometries for nano-structured composite bone substitutes but were never crystallographically analyzed. In this study, powder X-ray diffraction and Rietveld refinement revealed a discrepancy between the platelet structure and the known β-TCP crystal model. In contrast, a model featuring partial H for Ca substitution and the inversion of P1O4 tetrahedra, adopted from the whitlockite structure, allowed for a refinement with minimal misfits and was corroborated by HPO42- absorptions in Fourier-transform IR spectra. The Ca/P ratio converged to 1.443 ± 0.003 (n = 36), independently of synthesis conditions. As a quantitative verification, the platelets were thermally decomposed into hydrogen-free β-TCP and β-calcium pyrophosphate which resulted in a global Ca/P ratio in close agreement with the initial β-TCP Ca/P ratio (ΔCa/P = 0.003) and with the chemical composition measured by inductively coupled plasma (ΔCa/P = 0.003). These findings thus describe for the first time a hydrogen-substituted β-TCP structure, i.e. a Mg-free whitlockite, represented by the formula Ca21 - x(HPO4)2x(PO4)14 - 2x, where x = 0.80 ± 0.04, and may have implications for resorption properties of bone regenerative materials.
Collapse
Affiliation(s)
| | - Jürg Thüring
- RMS Foundation, Bettlach, Switzerland
- Department of Materials, ETH Zürich, Zürich, Switzerland
| | | | | | | | - Nicola Döbelin
- RMS Foundation, Bettlach, Switzerland
- Institute of Geological Sciences, University of Bern, Bern, Switzerland
| |
Collapse
|
26
|
Heinemann C, Heinemann S, Kruppke B, Worch H, Thomas J, Wiesmann H, Hanke T. Electric field-assisted formation of organically modified hydroxyapatite (ormoHAP) spheres in carboxymethylated gelatin gels. Acta Biomater 2016; 44:135-43. [PMID: 27544814 DOI: 10.1016/j.actbio.2016.08.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 08/04/2016] [Accepted: 08/16/2016] [Indexed: 10/21/2022]
Abstract
UNLABELLED A biomimetic strategy was developed in order to prepare organically modified hydroxyapatite (ormoHAP) with spherical shape. The technical approach is based on electric field-assisted migration of calcium ions and phosphate ions into a hydrogel composed of carboxymethylated gelatin. The electric field as well as the carboxymethylation using glucuronic acid (GlcA) significantly accelerates the mineralization process, which makes the process feasible for lab scale production of ormoHAP spheres and probably beyond. A further process was developed for gentle separation of the ormoHAP spheres from the gelatin gel without compromising the morphology of the mineral. The term ormoHAP was chosen since morphological analyses using electron microscopy (SEM, TEM) and element analysis (EDX, FT-IR, XRD) confirmed that carboxymethylated gelatin molecules use to act as organic templates for the formation of nanocrystalline HAP. The hydroxyapatite (HAP) crystals self-organize to form hollow spheres with diameters ranging from 100 to 500nm. The combination of the biocompatible chemical composition and the unique structure of the nanocomposites is considered to be a useful basis for future applications in functionalized degradable biomaterials. STATEMENT OF SIGNIFICANCE A novel bioinspired mineralization process was developed based on electric field-assisted migration of calcium and phosphate ions into biochemically carboxymethylated gelatin acting as organic template. Advantages over conventional hydroxyapatite include particle size distribution and homogeneity as well as achievable mechanical properties of relevant composites. Moreover, specifically developed calcium ion or phosphate ion release during degradation can be useful to adjust the fate of bone cells in order to manipulate remodeling processes. The hollow structure of the spheres can be useful for embedding drugs in the core, encapsulated by the highly mineralized outer shell. In this way, controlled drug release could be achieved, which enables advanced strategies for threating bone-related diseases, e.g. osteoporosis and multiple myeloma.
Collapse
|
27
|
Canal C, Khurana K, Gallinetti S, Bhatt S, Pulpytel J, Arefi-Khonsari F, Ginebra MP. Design of calcium phosphate scaffolds with controlled simvastatin release by plasma polymerisation. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
28
|
Furtos G, Rivero G, Rapuntean S, Abraham GA. Amoxicillin-loaded electrospun nanocomposite membranes for dental applications. J Biomed Mater Res B Appl Biomater 2016; 105:966-976. [DOI: 10.1002/jbm.b.33629] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/15/2016] [Accepted: 01/16/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Gabriel Furtos
- Department of Dental Materials; Babes-Bolyai University-Raluca Ripan, Institute of Research in Chemistry; Cluj-Napoca Romania
| | - Guadalupe Rivero
- Biomedical Polymers Division; Research Institute for Materials Science and Technology (INTEMA); B7608FDQ Mar del Plata Argentina
| | - Sorin Rapuntean
- Faculty of Veterinary Medicine; University of Agricultural Sciences and Veterinary Medicine; Cluj-Napoca Romania
| | - Gustavo A. Abraham
- Biomedical Polymers Division; Research Institute for Materials Science and Technology (INTEMA); B7608FDQ Mar del Plata Argentina
| |
Collapse
|
29
|
Canal C, Modic M, Cvelbar U, Ginebra MP. Regulating the antibiotic drug release from β-tricalcium phosphate ceramics by atmospheric plasma surface engineering. Biomater Sci 2016; 4:1454-61. [DOI: 10.1039/c6bm00411c] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Atmospheric plasma jet is a new promising tool that leads to the design of controlled drug release from bioceramic matrices.
Collapse
Affiliation(s)
- C. Canal
- Biomaterials
- Biomechanics and Tissue Engineering Group
- Dpt. Materials Science and Metallurgy
- Technical University of Catalonia (UPC)
- 08028 Barcelona
| | - M. Modic
- Department of Surface Engineering and Optoelectronics F-4
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| | - U. Cvelbar
- Department of Surface Engineering and Optoelectronics F-4
- Jožef Stefan Institute
- 1000 Ljubljana
- Slovenia
| | - M.-P. Ginebra
- Biomaterials
- Biomechanics and Tissue Engineering Group
- Dpt. Materials Science and Metallurgy
- Technical University of Catalonia (UPC)
- 08028 Barcelona
| |
Collapse
|
30
|
Furtos G, Naghiu MA, Declercq H, Gorea M, Prejmerean C, Pana O, Tomoaia-Cotisel M. Nano forsterite biocomposites for medical applications: Mechanical properties and bioactivity. J Biomed Mater Res B Appl Biomater 2015; 104:1290-301. [DOI: 10.1002/jbm.b.33396] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 01/20/2015] [Accepted: 02/08/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Gabriel Furtos
- Department of Dental Materials; Raluca Ripan Institute of Research in Chemistry, Babes-Bolyai University; Cluj-Napoca Romania
| | - Marieta-Adriana Naghiu
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering; Babes-Bolyai University; Cluj-Napoca Romania
| | - Heidi Declercq
- Department of Basic Medical Sciences, Tissue Engineering Group; Ghent University; Ghent Belgium
| | - Maria Gorea
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering; Babes-Bolyai University; Cluj-Napoca Romania
| | - Cristina Prejmerean
- Department of Dental Materials; Raluca Ripan Institute of Research in Chemistry, Babes-Bolyai University; Cluj-Napoca Romania
| | - Ovidiu Pana
- Physics of Nanostructured Systems Department; National Institute for R&D of Isotopic and Molecular Technology; Cluj-Napoca Romania
| | - Maria Tomoaia-Cotisel
- Department of Chemical Engineering, Faculty of Chemistry and Chemical Engineering; Babes-Bolyai University; Cluj-Napoca Romania
| |
Collapse
|
31
|
Siqueira IAWB, Corat MAF, Cavalcanti BDN, Ribeiro Neto WA, Martin AA, Bretas RES, Marciano FR, Lobo AO. In Vitro and in Vivo Studies of Novel Poly(D,L-lactic acid), Superhydrophilic Carbon Nanotubes, and Nanohydroxyapatite Scaffolds for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2015; 7:9385-9398. [PMID: 25899398 DOI: 10.1021/acsami.5b01066] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Poly(D,L-lactide acid, PDLLA) has been researched for scaffolds in bone regeneration. However, its hydrophobocity and smooth surface impedes its interaction with biological fluid and cell adhesion. To alter the surface characteristics, different surface modification techniques have been developed to facilitate biological application. The present study compared two different routes to produce PDLLA/superhydrophilic vertically aligned carbon nanotubes:nanohydroxyapatite (PDLLA/VACNT-O:nHAp) scaffolds. For this, we used electrodeposition and immersion in simulated body fluid (SBF). Characterization by goniometry, scanning electron microscopy, X-ray diffraction, and infrared spectroscopy confirmed the polymer modifications, the in vitro bioactivity, and biomineralization. Differential scanning calorimetry and thermal gravimetric analyses showed that the inclusion of VACNT-O:nHA probably acts as a nucleating agent increasing the crystallization rate in the neat PDLLA without structural alteration. Our results showed the formation of a dense nHAp layer on all scaffolds after 14 days of immersion in SBF solution; the most intense carbonated nHAp peaks observed in the PDLLA/VACNT-O:nHAp samples suggest higher calcium precipitation compared to the PDLLA control. Both cell viability and alkaline phosphatase assays showed favorable results, because no cytotoxic effects were present and all produced scaffolds were able to induce detectable mineralization. Bone defects were used to evaluate the bone regeneration; the confocal Raman and histological results confirmed high potential for bone applications. In vivo study showed that the PDLLA/VACNT-O:nHAp scaffolds mimicked the immature bone and induced bone remodeling. These findings indicate surface improvement and the applicability of this new nanobiomaterial for bone regenerative medicine.
Collapse
Affiliation(s)
| | - Marcus Alexandre F Corat
- ‡Multidisciplinary Center for Biological Investigation on Laboratory Animal Science (CEMIB), State University of Campinas, Campinas SP 13083-970, Sao Paulo, Brazil
| | - Bruno das Neves Cavalcanti
- §Department of Cariology, Restorative Sciences and Endodontics, School of Dentistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Wilson Alves Ribeiro Neto
- ∥Department of Materials Engineering, Federal University of Sao Carlos, Sao Carlos SP 13565-905, Sao Paulo, Brazil
| | | | - Rosario Elida Suman Bretas
- ∥Department of Materials Engineering, Federal University of Sao Carlos, Sao Carlos SP 13565-905, Sao Paulo, Brazil
| | | | | |
Collapse
|
32
|
Kang H, Shih YRV, Varghese S. Biomineralized matrices dominate soluble cues to direct osteogenic differentiation of human mesenchymal stem cells through adenosine signaling. Biomacromolecules 2015; 16:1050-61. [PMID: 25686297 DOI: 10.1021/acs.biomac.5b00099] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stem cell differentiation is determined by a repertoire of signals from its microenvironment, which includes the extracellular matrix (ECM) and soluble cues. The ability of mesenchymal stem cells (MSCs), a common precursor for the skeletal system, to differentiate into osteoblasts and adipocytes in response to their local cues plays an important role in skeletal tissue regeneration and homeostasis. In this study, we investigated whether a bone-specific calcium phosphate (CaP) mineral environment could induce osteogenic differentiation of human MSCs, while inhibiting their adipogenic differentiation, in the presence of adipogenic-inducing medium. We also examined the mechanism through which the mineralized matrix suppresses adipogenesis of hMSCs to promote their osteogenic differentiation. Our results show that hMSCs cultured on mineralized matrices underwent osteogenic differentiation despite being cultured in the presence of adipogenic medium, which indicates the dominance of matrix-based cues of the mineralized matrix in directing osteogenic commitment of stem cells. Furthermore, the mineralized matrix-driven attenuation of adipogenesis was reversed with the inhibition of A2b adenosine receptor (A2bR), implicating a role of adenosine signaling in mineralized environment-mediated inhibition of adipogenesis. Such synthetic matrices with an intrinsic ability to direct differentiation of multipotent adult stem cells toward a targeted phenotype while inhibiting their differentiation into other lineages not only will be a powerful tool in delineating the role of complex microenvironmental cues on stem cell commitment but also will contribute to functional tissue engineering and their translational applications.
Collapse
Affiliation(s)
- Heemin Kang
- Department of Bioengineering, ‡Materials Science and Engineering Program, University of California, San Diego , La Jolla, California 92093, United States
| | | | | |
Collapse
|
33
|
Dong Q, Chow LC, Wang T, Frukhtbeyn SA, Wang F, Yang M, Mitchell JW. A New Bioactive Polylactide-based Composite with High Mechanical Strength. Colloids Surf A Physicochem Eng Asp 2014; 457:256-262. [PMID: 25419050 PMCID: PMC4235798 DOI: 10.1016/j.colsurfa.2014.05.047] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A new bioresorbable polylactide/calcium phosphate composite with improved mechanical strengths and a more basic filler, tetracalcium phosphate (TTCP), was prepared by melt compounding. N-(2-aminoethyl)-3-aminoproplytrimethoxysilane (AEAPS) and pyromellitic dianhydride (PMDA) were used to improve the interfacial adhesion between TTCP and polylactide (PLA). While AEAPS improved the dispersion of TTCP in the matrix, PMDA might react with the terminal hydroxyl group of PLA and the amino group on the surface of AEAPS modified TTCP, which could further enhance the interfacial strength. The tensile strength was improved to 68.4 MPa for the PLA/TTCP-AEAPS composite from 51.5 MPa for the PLA/TTCP composite (20 wt% of TTCP). Dynamic mechanical analysis suggested that there was a 51 % improvement in storage modulus compared to that of PLA alone, when PMDA (0.2 wt% of PMDA) was incorporated into the PLA/TTCP-AEAPS composite (5 wt% of TTCP). Using this new bioresorbable PLA composite incorporated with a more basic filler for biomedical application, the inflammation and allergic effect resulted from the degraded acidic product are expected to be reduced.
Collapse
Affiliation(s)
- Quanxiao Dong
- Crest Center for Nanomaterials, College of Engineering, Howard University, Washington, DC 20059, USA
- College of Dentistry, Howard University, Washington, DC 20059, USA
- CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese, Academy of Sciences, Beijing 100190, China
- Beijing Engineering Research Center of Architectural Functional Macromolecular Materials, Beijing Building Construction Research Institute, Co., Ltd., Beijing, 100039, China
| | - Laurence C. Chow
- American Dental Association Foundation, Dr. Anthony Volpe Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Tongxin Wang
- Crest Center for Nanomaterials, College of Engineering, Howard University, Washington, DC 20059, USA
- College of Dentistry, Howard University, Washington, DC 20059, USA
| | - Stanislav A. Frukhtbeyn
- American Dental Association Foundation, Dr. Anthony Volpe Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Feng Wang
- CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese, Academy of Sciences, Beijing 100190, China
| | - Mingshu Yang
- CAS Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese, Academy of Sciences, Beijing 100190, China
| | - James W. Mitchell
- Crest Center for Nanomaterials, College of Engineering, Howard University, Washington, DC 20059, USA
| |
Collapse
|
34
|
Kang H, Wen C, Hwang Y, Shih YRV, Kar M, Seo SW, Varghese S. Biomineralized matrix-assisted osteogenic differentiation of human embryonic stem cells. J Mater Chem B 2014; 2:5676-5688. [PMID: 25114796 DOI: 10.1039/c4tb00714j] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The physical and chemical properties of a matrix play an important role in determining various cellular behaviors, including lineage specificity. We demonstrate that the differentiation commitment of human embryonic stem cells (hESCs), both in vitro and in vivo, can be solely achieved through synthetic biomaterials. hESCs were cultured using mineralized synthetic matrices mimicking a calcium phosphate (CaP)-rich bone environment differentiated into osteoblasts in the absence of any osteogenic inducing supplements. When implanted in vivo, these hESC-laden mineralized matrices contributed to ectopic bone tissue formation. In contrast, cells within the corresponding non-mineralized matrices underwent either osteogenic or adipogenic fate depending upon the local cues present in the microenvironment. To our knowledge, this is the first demonstration where synthetic matrices are shown to induce terminal cell fate specification of hESCs exclusively by biomaterial-based cues both in vitro and in vivo. Technologies that utilize tissue specific cell-matrix interactions to control stem cell fate could be a powerful tool in regenerative medicine. Such approaches can be used as a tool to advance our basic understanding and assess the translational potential of stem cells.
Collapse
Affiliation(s)
- Heemin Kang
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA ; Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, USA
| | - Cai Wen
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA ; School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210018, China
| | - Yongsung Hwang
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Yu-Ru V Shih
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Mrityunjoy Kar
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Sung Wook Seo
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA ; Department of Orthopaedic Surgery, Sungkyunkwan University School of Medicine, Seoul 135-710, Korea
| | - Shyni Varghese
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA ; Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA 92093, USA
| |
Collapse
|
35
|
Tas AC. The use of physiological solutions or media in calcium phosphate synthesis and processing. Acta Biomater 2014; 10:1771-92. [PMID: 24389317 DOI: 10.1016/j.actbio.2013.12.047] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 12/02/2013] [Accepted: 12/17/2013] [Indexed: 11/29/2022]
Abstract
This review examined the literature to spot uses, if any, of physiological solutions/media for the in situ synthesis of calcium phosphates (CaP) under processing conditions (i.e. temperature, pH, concentration of inorganic ions present in media) mimicking those prevalent in the human hard tissue environments. There happens to be a variety of aqueous solutions or media developed for different purposes; sometimes they have been named as physiological saline, isotonic solution, cell culture solution, metastable CaP solution, supersaturated calcification solution, simulated body fluid or even dialysate solution (for dialysis patients). Most of the time such solutions were not used as the aqueous medium to perform the biomimetic synthesis of calcium phosphates, and their use was usually limited to the in vitro testing of synthetic biomaterials. This review illustrates that only a limited number of research studies used physiological solutions or media such as Earle's balanced salt solution, Bachra et al. solutions or Tris-buffered simulated body fluid solution containing 27mM HCO3(-) for synthesizing CaP, and these studies have consistently reported the formation of X-ray-amorphous CaP nanopowders instead of Ap-CaP or stoichiometric hydroxyapatite (HA, Ca10(PO4)6(OH)2) at 37°C and pH 7.4. By relying on the published articles, this review highlights the significance of the use of aqueous solutions containing 0.8-1.5 mMMg(2+), 22-27mM HCO3(-), 142-145mM Na(+), 5-5.8mM K(+), 103-133mM Cl(-), 1.8-3.75mM Ca(2+), and 0.8-1.67mM HPO4(2-), which essentially mimic the composition and the overall ionic strength of the human extracellular fluid (ECF), in forming the nanospheres of X-ray-amorphous CaP.
Collapse
Affiliation(s)
- A Cuneyt Tas
- Department of Materials Science and Engineering, University of Illinois, Urbana, IL 61801, USA.
| |
Collapse
|
36
|
De Aza PN, Peña JI, Luklinska ZB, Meseguer-Olmo L. Bioeutectic ® Ceramics for Biomedical Application Obtained by Laser Floating Zone Method. In vivo Evaluation. MATERIALS 2014; 7:2395-2410. [PMID: 28788574 PMCID: PMC5453347 DOI: 10.3390/ma7042395] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Revised: 02/20/2014] [Accepted: 03/10/2014] [Indexed: 11/16/2022]
Abstract
In this study, the Bioeutectic® blocks were inserted into the critical size defects of eight rabbits, using both tibiae, and the physical and chemical nature of the remodeled interface between the Bioeutectic® implants and the surrounding bone were performed at four and 15 months. The results showed a new fully mineralized bone growing in direct contact with the implants. The ionic exchange, taking place at the implant interface with the body fluids was essential in the process of the implant integration through a dissolution-precipitation-transformation mechanism. The study found the interface biologically and chemically active over the 15 months implantation period. The osteoblastic cells migrated towards the interface and colonized the surface at the contact areas with the bone. The new developed apatite structure of porous morphology mimics natural bone.
Collapse
Affiliation(s)
- Piedad N De Aza
- Instituto de Bioingenieria, Universidad Miguel Hernandez, Avda. Ferrocarril s/n, Elche 03202, Alicante, Spain.
| | - Jose I Peña
- Department of Science and Technology of Materials and Fluids, Material Science Institute of Aragon, University of Zaragoza-CSIC, c/ Maria de Luna 3, Zaragoza 50018, Spain.
| | - Zofia B Luklinska
- Materials Science Department, School of Engineering and Materials Science, Queen Mary University of London, Mile End Road London E1 4NS, UK.
| | - Luis Meseguer-Olmo
- Unidad de Bioingeniería ósea, Servicio de Cirugía Ortopédica, Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia 30120, Spain.
| |
Collapse
|
37
|
|
38
|
Khan AF, Saleem M, Afzal A, Ali A, Khan A, Khan AR. Bioactive behavior of silicon substituted calcium phosphate based bioceramics for bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 35:245-52. [DOI: 10.1016/j.msec.2013.11.013] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 09/30/2013] [Accepted: 11/04/2013] [Indexed: 11/16/2022]
|
39
|
de Aza PN, Luklinska ZB, Mate-Sanchez de Val JE, Calvo-Guirado JL. Biodegradation process of α-tricalcium phosphate and α-tricalcium phosphate solid solution bioceramics in vivo: a comparative study. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2013; 19:1350-1357. [PMID: 23823628 DOI: 10.1017/s1431927613001864] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This article reports the structure and morphology of the in vivo interface between implants composed of either a tricalcium phosphate (αTCP) or αTCP doped with 3.0 wt% dicalcium silicate (αTCP(ss)) ceramic, and natural bone of rabbit tibias. Both interfaces developed a new bone layer in direct contact with the implants after 4 and 8 weeks of implantation. The specimens were examined using analytical scanning and transmission electron microscopy, up to the lattice plane resolution level. Degradation processes of the implants developed at the interfaces encouraged osseous tissue ingrowth into the periphery of the material, changing the microstructure of the implants. The ionic exchange initiated at the implant interface with the environment was essential in the integration process of the implant, through a dissolution–precipitation–transformation mechanism. The interfaces developed normal biological and chemical activities and remained reactive over the 8-week period. Organized collagen fibrils were found at the αTCP(ss)/bone interface after 4 weeks, whereas a collagen-free layer was present around the Si-free αTCP implants. These findings suggest that the incorporation of silicate ions into αTCP ceramic promotes processes of the bone remodeling at the bone/αTCP(ss) interface, hence the solubility rate of the aTCP(ss) material decreased.
Collapse
Affiliation(s)
- Piedad N de Aza
- Instituto de Bioingeniería, Universidad Miguel Hernández, Avda . Universidad s/n, 03202 Elche (Alicante), Spain
| | | | | | | |
Collapse
|
40
|
Vahabzadeh S, Edgington J, Bose S. Tricalcium phosphate and tricalcium phosphate/polycaprolactone particulate composite for controlled release of protein. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:3576-82. [PMID: 23910252 DOI: 10.1016/j.msec.2013.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2012] [Revised: 03/21/2013] [Accepted: 04/01/2013] [Indexed: 02/01/2023]
Abstract
β-Tricalcium phosphate (β-TCP) with three different particle size ranges was used to study the effects of particle size and surface area on protein adsorption and release. Polycaprolactone (PCL) coating was applied on the particle systems to investigate its effect on particulate system properties from both structural and application aspects. The maximum loading of 27 mg/g was achieved for 100 nm particles. Bovine serum albumin (BSA) loading amount was controlled by varying the BSA loading solution concentration, as well as the sample powder's surface area. Increasing the surface area of the delivery powder significantly increased loading and release yield. Unlike the samples with low surface area, the lowest particle size samples showed sigmoidal release profile. This indicated that release was governed by different mechanisms for particles with different sizes. While the majority of samples showed no more than 50% release, the 550 nm particles demonstrated 100% release. PCL coating showed no significant ability to attenuate burst release in PBS. However, it led to a steadier release profile as compared to the bare TCP particles. FTIR analysis also proved that the secondary structure of BSA did not change significantly during the adsorption; however, minor denaturation was found during the release. The same results were found when PCL coating was applied on the TCP particles. We envision potential use of TCP and TCP+PCL systems in bone growth factor or orthopedic drug delivery applications in future bone tissue engineering application.
Collapse
Affiliation(s)
- Sahar Vahabzadeh
- W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USA
| | | | | |
Collapse
|
41
|
Wang J, Qin W, Liu X, Liu H. Synthesis and characterization of hydroxyapatite on hydrolyzed polyacrylonitrile nanofiber templates. RSC Adv 2013. [DOI: 10.1039/c3ra23264f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
42
|
Phadke A, Shih YRV, Varghese S. Mineralized Synthetic Matrices as an Instructive Microenvironment for Osteogenic Differentiation of Human Mesenchymal Stem Cells. Macromol Biosci 2012; 12:1022-32. [DOI: 10.1002/mabi.201100289] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Revised: 11/28/2011] [Indexed: 12/14/2022]
|
43
|
Mestres G, Le Van C, Ginebra MP. Silicon-stabilized α-tricalcium phosphate and its use in a calcium phosphate cement: characterization and cell response. Acta Biomater 2012; 8:1169-79. [PMID: 22154863 DOI: 10.1016/j.actbio.2011.11.021] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Revised: 10/29/2011] [Accepted: 11/18/2011] [Indexed: 11/30/2022]
Abstract
α-Tricalcium phosphate (α-TCP) is widely used as a reactant in calcium phosphate cements. This work aims at doping α-TCP with silicon with a twofold objective. On the one hand, to study the effect of Si addition on the stability and reactivity of this polymorph. On the other, to develop Si-doped cements and to evaluate the effect of Si on their in vitro cell response. For this purpose a calcium-deficient hydroxyapatite was sintered at 1250°C with different amounts of silicon oxide. The high temperature polymorph α-TCP was stabilized by the presence of silicon, which inhibited reversion of the β→α transformation, whereas in the Si-free sample α-TCP completely reverted to the β-polymorph. However, the β-α transformation temperature was not affected by the presence of Si. Si-α-TCP and its Si-free counterpart were used as reactants for a calcium phosphate cement. While Si-α-TCP showed faster hydrolysis to calcium-deficient hydroxyapatite, upon complete reaction the crystalline phases, morphology and mechanical properties of both cements were similar. An in vitro cell culture study, in which osteoblast-like cells were exposed to the ions released by both materials, showed a delay in cell proliferation in both cases and stimulation of cell differentiation, more marked for the Si-containing cement. These results can be attributed to strong modification of the ionic concentrations in the culture medium by both materials. Ca-depletion from the medium was observed for both cements, whereas continuous Si release was detected for the Si-containing cement.
Collapse
Affiliation(s)
- Gemma Mestres
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Technical University of Catalonia (UPC), Avenida Diagonal 647, E08028 Barcelona, Spain
| | | | | |
Collapse
|
44
|
Monden Y, Hirota M, Hayakawa T, Sato M, Murata S, Sato Y, Maegawa J, Tohnai I. Thin Hydroxyapatite Coating on Porous Beta-Tricalcium Phosphate (β-TCP) Enhances Osteoblast Function Activity. J HARD TISSUE BIOL 2012. [DOI: 10.2485/jhtb.21.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
45
|
Martins AM, Kretlow JD, Costa-Pinto AR, Malafaya PB, Fernandes EM, Neves NM, Alves CM, Mikos AG, Kasper FK, Reis RL. Gradual pore formation in natural origin scaffolds throughout subcutaneous implantation. J Biomed Mater Res A 2011; 100:599-612. [PMID: 22213676 DOI: 10.1002/jbm.a.33261] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 07/26/2011] [Accepted: 08/01/2011] [Indexed: 11/08/2022]
Abstract
This study used a rat subcutaneous implantation model to investigate gradual in situ pore formation in a self-regulating degradable chitosan-based material, which comprises lysozyme incorporated into biomimetic calcium phosphate (CaP) coatings at the surface to control the scaffold degradation and subsequent pore formation. Specifically, the in vivo degradation of the scaffolds, the in situ pore formation, and the tissue response were investigated. Chitosan or chitosan/starch scaffolds were studied with and without a CaP coating in the presence or absence of lysozyme for a total of six experimental groups. Twenty-four scaffolds per group were implanted, and eight scaffolds were retrieved at each of three time points (3, 6, and 12 weeks). Harvested samples were analyzed for weight loss, microcomputed tomography, and histological analysis. All scaffolds showed pronounced weight loss and pore formation as a function of time. The highest weight loss was 29.8% ± 1.5%, obtained at week 12 for CaP chitosan/starch scaffolds with lysozyme incorporated. Moreover, all experimental groups showed a significant increase in porosity after 12 weeks. At all time points no adverse tissue reaction was observed, and as degradation increased, histological analysis showed cellular ingrowth throughout the implants. Using this innovative methodology, the ability to gradually generate pores in situ was clearly demonstrated in vivo.
Collapse
Affiliation(s)
- Ana M Martins
- Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Taipas, Guimarães 4806-909, Portugal
| | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Rabadjieva D, Tepavitcharova S, Gergulova R, Sezanova K, Titorenkova R, Petrov O, Dyulgerova E. Mg- and Zn-modified calcium phosphates prepared by biomimetic precipitation and subsequent treatment at high temperature. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:2187-2196. [PMID: 21870084 DOI: 10.1007/s10856-011-4415-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Accepted: 08/06/2011] [Indexed: 05/31/2023]
Abstract
Powders of magnesium-modified as well as zinc-modified calcium phosphates (Me-β-TCP and HA) with a (Ca(2+)+Mg(2+)+Zn(2+)+Na(+)+K(+))/P ratio of 1.3-1.4 and various Me(2+)/(Me(2+)+Ca(2+)) ratios (from 0.005 to 0.16) were prepared in biomimetic electrolyte systems at pH 8, mother liquid maturation and further syntering at 600-1000°C. Some differences in zinc and magnesium modifications have been prognosed on the basis of thermodynamic modeling of the studied systems and explained by the Mg(2+) and Zn(2+) ion chemical behaviour. The temperature as well as the degree of Zn(2+) and Mg(2+) ions substitutions were found to stabilize the β-TCP structure and this effect was more prononced for zinc. Thus, zinc-modified β-TCP powders consisting of idiomorphic crystals were obtained through sintering of Zn(2+) ion substituted calcium phosphates precursors at 800-1000°C. The Mg(2+) ion substitution leads to obtaining magnesium-modified β-TCP with spherical grains.
Collapse
Affiliation(s)
- D Rabadjieva
- Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. G. Bontchev Str., Bl.11, 1113, Sofia, Bulgaria.
| | | | | | | | | | | | | |
Collapse
|
47
|
Bianco A, Bozzo BM, Del Gaudio C, Cacciotti I, Armentano I, Dottori M, D'Angelo F, Martino S, Orlacchio A, Kenny JM. Poly (L-lactic acid)/calcium-deficient nanohydroxyapatite electrospun mats for bone marrow stem cell cultures. J BIOACT COMPAT POL 2011. [DOI: 10.1177/0883911511406250] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Electrospinning of bioresorbable polymers is a promising and valuable scaffolding technique. To improve its potential applications, the addition of specific fillers has been considered. This paper reports the fabrication of electrospun poly(L-lactic acid)/Ca-deficient-hydroxyapatite (PLLA/dHAp) mats, the content of nanosized d-HAp ranged between 1 and 8 wt%. All samples consisted of micrometric and submicrometric fibers, comprising 2D voids of 8 and 13 µm for PLLA and PLLA/d-HAp mats, respectively. The surface of the electrospun fibers was characterized by an uniform distribution of nanopores. Hybrid mats loaded with 1 wt% d-HAp showed the most homogeneous microstructure, differently from the mats loaded with 4 and 8 wt% d-HAp due to the presence of microagglomerates. The viscoelastic properties of PLLA/d-HAp hybrids were characterized by a decreasing trend of the storage modulus with increases in the nanofiller content. The microstructure, viscoelastic behavior, and cytocompatibility were investigated using murine bone marrow mesenchymal stem cells. On the basis of the biological data, the electrospun PLLA and PLLA/d-HAp mats can be regarded as potential scaffolds for bone marrow mesenchymal stem cells culture.
Collapse
Affiliation(s)
- Alessandra Bianco
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata' , Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata,
| | - Barbara Marida Bozzo
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata ', Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata
| | - Costantino Del Gaudio
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata' , Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata
| | - Ilaria Cacciotti
- Dipartimento di Scienze e Tecnologie Chimiche, Università degli Studi di Roma 'Tor Vergata' , Via della Ricerca Scientifica, 00133 Roma (Italy)-UdR INSTM Roma Tor Vergata
| | - Ilaria Armentano
- Materials Science and Technology Center, UdR INSTM, NIPLAB, University of Perugia, strada di Pentima 4, 05100, Terni, Italy
| | - Mariaserena Dottori
- National Institute Biostructures and Biosystems, INBB at Material Science and Technology Center, University of Perugia, strada di Pentima 4, 05100, Terni, Italy
| | - Francesco D'Angelo
- University of Perugia, Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Via del Giochetto, 06126 Perugia, Italy
| | - Sabata Martino
- University of Perugia, Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Via del Giochetto, 06126 Perugia, Italy
| | - Aldo Orlacchio
- University of Perugia, Dipartimento di Medicina Sperimentale e Scienze Biochimiche, Sezione di Biochimica e Biologia Molecolare, Via del Giochetto, 06126 Perugia, Italy
| | - Josè Maria Kenny
- Materials Science and Technology Center, UdR INSTM, NIPLAB, University of Perugia, strada di Pentima 4, 05100, Terni, Italy, Institute of Polymer Science and Technology, CSIC, Juan de la Cierva 3, 28006, Madrid, Spain
| |
Collapse
|
48
|
Overgaard S. Calcium phosphate coatings for fixation of bone implants. Evaluated mechanically and histologically by stereological methods. ACTA ACUST UNITED AC 2011. [DOI: 10.1080/000164702760300297] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
49
|
Bertazzo S, Zambuzzi WF, Campos DDP, Ferreira CV, Bertran CA. A simple method for enhancing cell adhesion to hydroxyapatite surface. Clin Oral Implants Res 2010; 21:1411-3. [DOI: 10.1111/j.1600-0501.2010.01968.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
50
|
Shokrgozar MA, Farokhi M, Rajaei F, Bagheri MHA, Azari SH, Ghasemi I, Mottaghitalab F, Azadmanesh K, Radfar J. Biocompatibility evaluation of HDPE-UHMWPE reinforced β-TCP nanocomposites using highly purified human osteoblast cells. J Biomed Mater Res A 2010; 95:1074-83. [DOI: 10.1002/jbm.a.32892] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2009] [Revised: 02/08/2010] [Accepted: 03/29/2010] [Indexed: 11/09/2022]
|