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Hernández-Navarro C, Pérez S, Flórez E, Acelas N, Muñoz-Saldaña J. Sargassum macroalgae from Quintana Roo as raw material for the preparation of high-performance phosphate adsorbent from aqueous solutions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 342:118312. [PMID: 37270982 DOI: 10.1016/j.jenvman.2023.118312] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/12/2023] [Accepted: 05/30/2023] [Indexed: 06/06/2023]
Abstract
Currently, the large volumes of Sargassum biomass (Sgs) arriving on Caribbean coasts are a problem that must be solved quickly. One alternative is to obtain value-added products from Sgs. In this work, Sgs is demonstrated to be a high-performance Ca - bioadsorbent for phosphate removal by a heat pretreatment at 800 °C that produces biochar. According to XRD analysis, calcined Sgs (CSgs) have a composition of 43.68%, 40.51%, and 8.69% of Ca(OH)2, CaCO3, and CaO, making CSgs a promising material for phosphate removal and recovery. Results demonstrated that CSgs have a high capacity to adsorb P over a wide range of concentrations (25-1000 mg P/L). After P removal, at low P concentration, the adsorbent material is rich in apatite (Ca5(PO4)3OH), and at high P concentration, brushite (CaHPO4•2H2O) was the main P compound. The CSg reached a Qmax of 224.58 mg P/g, which is higher than other high-performance adsorbents reported in the literature. The phosphate adsorption mechanism was dominated by chemisorption, followed by precipitation according to the pseudo-second-order kinetic model. The solubility of P (74.5 wt%) in formic acid solution and the water-soluble P (24.8 wt%) for CSgs after P adsorption indicated that the final product presents the potential to be used as fertilizer for acid soils. This biomass's processability and high phosphate adsorption performance for P removal make CSgs a potential material for wastewater treatment, and subsequent use of these residues as fertilizer offers a circular economy solution to this problem.
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Affiliation(s)
- Carolina Hernández-Navarro
- Laboratorio Nacional de Proyección Térmica (CENAPROT), Centro de Investigación y de Estudios Avanzados Del IPN, Libramiento Norponiente 2000 Fracc. Real de Juriquilla, 76230, Querétaro, Mexico; Tecnológico Nacional de México CRODE-Celaya, Centro de Vinculación para la Innovación y Desarrollo Empresarial (CEVIDE), Departamento de Diseño y Desarrollo de Equipo, Manuel Orozco I. Berra 92, Col. Residencial Tecnológico, 38010, Celaya, Guanajuato, Mexico
| | - Sebastián Pérez
- Laboratorio Nacional de Proyección Térmica (CENAPROT), Centro de Investigación y de Estudios Avanzados Del IPN, Libramiento Norponiente 2000 Fracc. Real de Juriquilla, 76230, Querétaro, Mexico
| | - Elizabeth Flórez
- Grupo de Investigación Materiales con Impacto (Mat&mpac), Facultad de Ciencias Básicas, Universidad de Medellín, Carrera 87 No. 30-65, Medellín, 050026, Colombia
| | - Nancy Acelas
- Grupo de Investigación Materiales con Impacto (Mat&mpac), Facultad de Ciencias Básicas, Universidad de Medellín, Carrera 87 No. 30-65, Medellín, 050026, Colombia.
| | - Juan Muñoz-Saldaña
- Laboratorio Nacional de Proyección Térmica (CENAPROT), Centro de Investigación y de Estudios Avanzados Del IPN, Libramiento Norponiente 2000 Fracc. Real de Juriquilla, 76230, Querétaro, Mexico.
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Dias AM, do Nascimento Canhas I, Bruziquesi CGO, Speziali MG, Sinisterra RD, Cortés ME. Magnesium (Mg2 +), Strontium (Sr2 +), and Zinc (Zn2 +) Co-substituted Bone Cements Based on Nano-hydroxyapatite/Monetite for Bone Regeneration. Biol Trace Elem Res 2023; 201:2963-2981. [PMID: 35994139 DOI: 10.1007/s12011-022-03382-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Accepted: 08/06/2022] [Indexed: 11/30/2022]
Abstract
New bone cement type that combines Sr2 + /Mg2 + or Sr2 + /Zn2 + co-substituted nano-hydroxyapatite (n-HAs) with calcium phosphate dibasic and chitosan/gelatin polymers was developed to increase adhesion and cellular response. The cements were physicochemically described and tested in vitro using cell cultures. All cements exhibited quite hydrophilic and had high washout resistance. Cement releases Ca2 + , Mg2 + , Sr2 + , and Zn2 + in concentrations that are suitable for osteoblast proliferation and development. All of the cements stimulated cell proliferation in fibroblasts, endothelial cells, and osteoblasts, were non-cytotoxic, and produced apatite. Cements containing co-substituted n-HAs had excellent cytocompatibility, which improved osteoblast adhesion and cell proliferation. These cements had osteoinductive potential, stimulating extracellular matrix (ECM) mineralization and differentiation of MC3T3-E1 cells by increasing ALP and NO production. The ions Ca2 + , Mg2 + , Zn2 + , and Sr2 + appear to cooperate in promoting osteoblast function. The C3 cement (HA-SrMg5%), which was made up of n-HA co-substituted with 5 mol% Sr and 5 mol% Mg, showed exceptional osteoinductive capacity in terms of bone regeneration, indicating that this new bone cement could be a promising material for bone replacement.
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Affiliation(s)
- Alexa Magalhães Dias
- Dentistry Department, Faculty of Dentistry, Universidade Federal de Juiz de Fora, Rua São Paulo, 745 Governador Valadares/MG Brazil, Governador Valadares, MG, CEP, 31270901, Brazil
- Restorative Dentistry Department, Faculty of Dentistry, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil
| | - Isabela do Nascimento Canhas
- Biopharmaceutical and Technology Innovation Graduate Program, ICB, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil
| | - Carlos Giovani Oliveira Bruziquesi
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil
| | - Marcelo Gomes Speziali
- Biopharmaceutical and Technology Innovation Graduate Program, ICB, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil
- Chemistry Department, Instituto de Ciências Exatas E Biológicas, Universidade Federal de Ouro Preto, Campus Morro do Cruzeiro s/n, Ouro Preto, MG, CEP, 35400000, Brazil
| | - Rubén Dario Sinisterra
- Biopharmaceutical and Technology Innovation Graduate Program, ICB, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil
- Chemistry Department, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil
| | - Maria Esperanza Cortés
- Biopharmaceutical and Technology Innovation Graduate Program, ICB, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil.
- Restorative Dentistry Department, Faculty of Dentistry, Universidade Federal de Minas Gerais, Av. Presidente Antônio Carlos 6627, Belo Horizonte, MG, CEP, 31270901, Brazil.
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Słota D, Piętak K, Florkiewicz W, Jampilek J, Tomala A, Urbaniak MM, Tomaszewska A, Rudnicka K, Sobczak-Kupiec A. Clindamycin-Loaded Nanosized Calcium Phosphates Powders as a Carrier of Active Substances. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13091469. [PMID: 37177013 PMCID: PMC10180150 DOI: 10.3390/nano13091469] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
Bioactive calcium phosphate ceramics (CaPs) are one of the building components of the inorganic part of bones. Synthetic CaPs are frequently used as materials for filling bone defects in the form of pastes or composites; however, their porous structure allows modification with active substances and, thus, subsequent use as a drug carrier for the controlled release of active substances. In this study, four different ceramic powders were compared: commercial hydroxyapatite (HA), TCP, brushite, as well as HA obtained by wet precipitation methods. The ceramic powders were subjected to physicochemical analysis, including FTIR, XRD, and determination of Ca/P molar ratio or porosity. These techniques confirmed that the materials were phase-pure, and the molar ratios of calcium and phosphorus elements were in accordance with the literature. This confirmed the validity of the selected synthesis methods. CaPs were then modified with the antibiotic clindamycin. Drug release was determined on HPLC, and antimicrobial properties were tested against Staphylococcus aureus. The specific surface area of the ceramic has been demonstrated to be a factor in drug release efficiency.
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Affiliation(s)
- Dagmara Słota
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Karina Piętak
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Wioletta Florkiewicz
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Josef Jampilek
- Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, 842 15 Bratislava, Slovakia
- Department of Chemical Biology, Faculty of Science, Palacky University Olomouc, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - Agnieszka Tomala
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
| | - Mateusz M Urbaniak
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Łódź, 90-237 Łódź, Poland
- Bio-Med-Chem Doctoral School, University of Lodz and Lodz Institutes of the Polish Academy of Sciences, 90-237 Łódź, Poland
| | - Agata Tomaszewska
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Łódź, 90-237 Łódź, Poland
- Bio-Med-Chem Doctoral School, University of Lodz and Lodz Institutes of the Polish Academy of Sciences, 90-237 Łódź, Poland
| | - Karolina Rudnicka
- Department of Immunology and Infectious Biology, Faculty of Biology and Environmental Protection, University of Łódź, 90-237 Łódź, Poland
| | - Agnieszka Sobczak-Kupiec
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, 37 Jana Pawła II Av., 31 864 Krakow, Poland
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Głąb M, Kudłacik-Kramarczyk S, Drabczyk A, Kordyka A, Godzierz M, Wróbel PS, Tomala A, Tyliszczak B, Sobczak-Kupiec A. Evaluation of the impact of pH of the reaction mixture, type of the stirring, and the reagents' concentration in the wet precipitation method on physicochemical properties of hydroxyapatite so as to enhance its biomedical application potential. J Biomed Mater Res B Appl Biomater 2022; 110:2649-2666. [PMID: 35816273 DOI: 10.1002/jbm.b.35118] [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: 03/14/2022] [Revised: 06/08/2022] [Accepted: 06/13/2022] [Indexed: 12/15/2022]
Abstract
Hydroxyapatite (HAp) constitutes a significant inorganic compound which due to its osteoinductivity, osteoconductivity as well as the ability to promote bone growth and regeneration is widely applied in development of biomaterials designed for bone tissue engineering. In this work, various synthesis methodologies of HAp based on the wet precipitation technique were applied, and the impact of pH of the reaction mixture, the concentration of individual reagents as well as the type of stirring applied (mechanical/magnetic) on the properties of final powders was discussed. Spectroscopic methods (Fourier transform infrared, Raman) and X-ray diffraction allowed to verify the synthesis parameters leading to obtaining calcium phosphate with 96% HAp in phase which indicated higher homogeneity of obtained powder (93.4%) than commercial HAp. Powders' morphology was evaluated using microscopic techniques while specific surface area was determined via Brunauer-Emmett-Teller analysis. Particle size distribution, porosity of powders, and stability of HAp suspensions were also characterized. It was proved that synthesis at pH = 11.0 using mechanical stirring resulted in calcium phosphate with a high phase homogeneity and homogeneous pore size distribution (6-20 nm). Moreover, obtained HAp powder showed 71.8% more specific surface area than commercial material-that is, 110 m3 /g for synthetic HAp and 64 m3 /g in the case of commercial powder-which, in turn, is significant in terms of its potential application as carrier of active substances. Thus it was demonstrated that by applying appropriate conditions of HAp synthesis it is possible to obtain powder with properties enhancing its application potential for medical purposes.
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Affiliation(s)
- Magdalena Głąb
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Sonia Kudłacik-Kramarczyk
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Anna Drabczyk
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Aleksandra Kordyka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Marcin Godzierz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Paweł S Wróbel
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, Zabrze, Poland
| | - Agnieszka Tomala
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Bożena Tyliszczak
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
| | - Agnieszka Sobczak-Kupiec
- Department of Materials Engineering, Faculty of Materials Engineering and Physics, Cracow University of Technology, Krakow, Poland
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Alfayez E, Veschini L, Dettin M, Zamuner A, Gaetani M, Carreca AP, Najman S, Ghanaati S, Coward T, Di Silvio L. DAR 16-II Primes Endothelial Cells for Angiogenesis Improving Bone Ingrowth in 3D-Printed BCP Scaffolds and Regeneration of Critically Sized Bone Defects. Biomolecules 2022; 12:biom12111619. [PMID: 36358970 PMCID: PMC9687468 DOI: 10.3390/biom12111619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/28/2022] [Accepted: 10/30/2022] [Indexed: 11/06/2022] Open
Abstract
Bone is a highly vascularized tissue and relies on the angiogenesis and response of cells in the immediate environmental niche at the defect site for regeneration. Hence, the ability to control angiogenesis and cellular responses during osteogenesis has important implications in tissue-engineered strategies. Self-assembling ionic-complementary peptides have received much interest as they mimic the natural extracellular matrix. Three-dimensional (3D)-printed biphasic calcium phosphate (BCP) scaffolds coated with self-assembling DAR 16-II peptide provide a support template with the ability to recruit and enhance the adhesion of cells. In vitro studies demonstrated prompt the adhesion of both human umbilical vein endothelial cells (HUVEC) and human mesenchymal stem cells (hMSC), favoring endothelial cell activation toward an angiogenic phenotype. The SEM-EDS and protein micro bicinchoninic acid (BCA) assays demonstrated the efficacy of the coating. Whole proteomic analysis of DAR 16-II-treated HUVECs demonstrated the upregulation of proteins involved in cell adhesion (HABP2), migration (AMOTL1), cytoskeletal re-arrangement (SHC1, TMOD2), immuno-modulation (AMBP, MIF), and morphogenesis (COL4A1). In vivo studies using DAR-16-II-coated scaffolds provided an architectural template, promoting cell colonization, osteogenesis, and angiogenesis. In conclusion, DAR 16-II acts as a proactive angiogenic factor when adsorbed onto BCP scaffolds and provides a simple and effective functionalization step to facilitate the translation of tailored 3D-printed BCP scaffolds for clinical applications.
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Affiliation(s)
- Eman Alfayez
- Faculty of Dentistry, Oral Biology Department, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Faculty of Dentistry, Oral & Craniofacial Sciences King’s College London, London SE1 9RT, UK
| | - Lorenzo Veschini
- Faculty of Dentistry, Oral & Craniofacial Sciences King’s College London, London SE1 9RT, UK
| | - Monica Dettin
- Department of Industrial Engineering, University of Padua, 35131 Padua, Italy
| | - Annj Zamuner
- Department of Civil, Environmental, and Architectural Engineering, University of Padua, 35131 Padua, Italy
| | - Massimiliano Gaetani
- Fondazione Ricerca nel Mediterraneo (Ri.MED) and Department of Laboratory Medicine and Advanced Biotechnologies, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, 90100 Palermo, Italy
- Chemical Proteomics, Department of Medical Biochemistry and Biophysics, Karolinska Institutet and SciLifeLab (Science for Life Laboratory), SE-17 177 Stockholm, Sweden
| | - Anna P. Carreca
- Fondazione Ricerca nel Mediterraneo (Ri.MED) and Department of Laboratory Medicine and Advanced Biotechnologies, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Mediterraneo per i Trapianti e Terapie ad Alta Specializzazione, 90100 Palermo, Italy
| | - Stevo Najman
- Faculty of Medicine, University of Niš, 18000 Niš, Serbia
| | - Shahram Ghanaati
- Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Goethe University, 60323 Frankfurt, Germany
| | - Trevor Coward
- Faculty of Dentistry, Oral & Craniofacial Sciences King’s College London, London SE1 9RT, UK
| | - Lucy Di Silvio
- Faculty of Dentistry, Oral & Craniofacial Sciences King’s College London, London SE1 9RT, UK
- Correspondence: ; Tel.: +44-02-07848-8475
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Monetite vs. Brushite: Different Influences on Bone Cell Response Modulated by Strontium Functionalization. J Funct Biomater 2022; 13:jfb13020065. [PMID: 35735920 PMCID: PMC9225351 DOI: 10.3390/jfb13020065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 05/13/2022] [Accepted: 05/20/2022] [Indexed: 02/01/2023] Open
Abstract
Monetite and brushite are regarded with increasing interest for the preparation of biomaterials for applications in the musculoskeletal system. Herein, we investigated the influence of strontium substitution in the structures of these two phosphates on bone cell response. To achieve this aim, co-cultures of human primary osteoclasts and human osteoblast-like MG63 cells were tested on strontium-substituted monetite and strontium-substituted brushite, as well as on monetite and brushite, as controls. In both structures, strontium substitution for calcium amounted to about 6 at% and provoked enlargement of the cell parameters and morphologic variations. Cumulative release in physiological solution increased linearly over time and was greater from brushite (up to about 160 and 560 mg/L at 14 days for Sr and Ca, respectively) than from monetite (up to about 90 and 250 mg/L at 14 days for Sr and Ca, respectively). The increasing viability of osteoblast-like cells over time, with the different expression level of some typical bone markers, indicates a more pronounced trigger toward osteoblast differentiation and osteoclast inhibition by brushite materials. In particular, the inhibition of cathepsin K and tartrate-resistant acid phosphatase at the gene and morphological levels suggests strontium-substituted brushite can be applied in diseases characterized by excessive bone resorption.
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Continuous Production of Highly Tuned Silk/Calcium-Based Composites: Exploring New Pathways for Skin Regeneration. Molecules 2022; 27:molecules27072249. [PMID: 35408647 PMCID: PMC9000890 DOI: 10.3390/molecules27072249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/18/2022] [Accepted: 03/25/2022] [Indexed: 11/23/2022] Open
Abstract
Calcium plays an important role in barrier function repair and skin homeostasis. In particular, calcium phosphates (CaPs) are well established materials for biomedical engineering due to their biocompatibility. To generate biomaterials with a more complete set of biological properties, previously discarded silk sericin (SS) has been recovered and used as a template to grow CaPs. Crucial characteristics for skin applications, such as antibacterial activity, can be further enhanced by doping CaPs with cerium (Ce) ions. The effectiveness of cell attachment and growth on the materials highly depends on their morphology, particle size distribution, and chemical composition. These characteristics can be tailored through the application of oscillatory flow technology, which provides precise mixing control of the reaction medium. Thus, in the present work, CaP/SS and CaP/SS/Ce particles were fabricated for the first time using a modular oscillatory flow plate reactor (MOFPR) in a continuous mode. Furthermore, the biological behavior of both these composites and of previously produced pure CaPs was assessed using human dermal fibroblasts (HDFs). It was demonstrated that both CaP based with plate-shaped nanoparticles and CaP-SS-based composites significantly improved cell viability and proliferation over time. The results obtained represent a first step towards the reinvention of CaPs for skin engineering.
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Adawy A, Diaz R. Probing the Structure, Cytocompatibility, and Antimicrobial Efficacy of Silver-, Strontium-, and Zinc-Doped Monetite. ACS APPLIED BIO MATERIALS 2022; 5:1648-1657. [PMID: 35324139 PMCID: PMC9019811 DOI: 10.1021/acsabm.2c00047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Calcium phosphate
phases are among the most widely accepted compounds
for biomaterial applications, of which the resorbable phases have
gained particular attention in recent years. Brushite and its anhydrous
form monetite are among the most interesting resorbable calcium phosphate
phases that can be applied as cements and for in situ fabrication of three-dimensional (3D) implants. Of these two dicalcium
phosphate compounds, monetite is more stable and undergoes slower
degradation than brushite. The purpose of the current study is to
synthesize and dope monetite with the antimicrobial elements silver
and zinc and the osteoinductive element strontium and investigate
the possible structural variations as well as their biocompatibility
and antimicrobial effectiveness. For this, powder X-ray diffraction
(PXRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron
microscopy (SEM), and cryo-transmission electron microscopy (cryo-TEM)
were used to thoroughly study the synthesized structures. Moreover,
the ASTM E-2149-01 protocol and a cell proliferation assay were used
to determine the minimum inhibitory concentration (MIC) and minimum
bactericidal concentration (MBC) and the cytocompatibility of the
different phases with the Soas-2 cell line, respectively. The results
confirm the successful synthesis and doping procedures, such that
zinc was the most incorporated element into the monetite phase and
strontium was the least incorporated element. The microbiological
studies revealed that silver is a very effective antimicrobial agent
at low concentrations but unsuitable at high concentrations because
its cytotoxicity would prevail. On the other hand, doping the compounds
with zinc led to a reasonable antimicrobial activity without compromising
the biocompatibility to obviously high concentrations. The study also
highlights that strontium, widely known for its osteoinductivity,
bears an antimicrobial effect at high concentrations. The generated
doped compounds could be beneficial for prospective studies as bone
cements or for scaffold biomaterial applications.
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Affiliation(s)
- Alaa Adawy
- Unit of Electron Microscopy and Nanotechnology, Institute for Scientific and Technological Resources (SCTs), University of Oviedo, 33006 Oviedo, Asturias, Spain
| | - Raquel Diaz
- Nanomaterials and Nanotechnology Research Centre─CINN (CSIC), 33940 El Entrego, Spain
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Zhou L, You J, Wang Z, Gu Y, Chen D, Lin B, Zhao X, Lin J, Lin J, Liu W. 3D printing monetite-coated Ti-6Al-4V surface with osteoimmunomodulatory function to enhance osteogenesis. BIOMATERIALS ADVANCES 2022; 134:112562. [PMID: 35525756 DOI: 10.1016/j.msec.2021.112562] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/18/2021] [Accepted: 11/21/2021] [Indexed: 06/14/2023]
Abstract
Titanium and its alloys are widely used in orthopedic implant surgery due to their good mechanical properties and biocompatibility. Recent studies have shown that the healing process of fractures involve not only the calcification of osteoblasts but also the regulation of the immune system. The functionalization of titanium surface coatings is one of the most important methods for solving implant failures. In this study, monetite (CaHPO4) was coated on the Ti-6Al-4V porous scaffold by hydrothermal method. SEM, XRD and EDS were used to characterize the morphology, phase constitutes, elemental content of the coating, respectively. The results indicated that a well bonded and uniformly distributed monetite coating obtained, and the degradation performance and Ca2+ release of the surface coating were also studied. In terms of biology, live/dead staining and CCK8 methods showed the coating had good biocompatibility and BMSCs can adhere and proliferate on the surface. Flow cytometry and ELISA indicated that the surface monetite-coating had good anti-inflammatory properties. Through RNA-seq analysis, it was shown in KEGG that the osteoclast-related pathway was inhibited. In vitro, monetite induced osteogenic gene expression in BMSCs and inhibited the activity of osteoclasts. In vivo experiments showed that the monetite-coating increased bone formation. In summary, monetite-coating can effectively promote the osteogenesis in BMSCs, which may be achieved through bone immune regulation.
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Affiliation(s)
| | - Jiacheng You
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
| | - Zhenyu Wang
- Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - Yang Gu
- Department of Trauma Orthopedics Surgery, Ningbo No.6 Hospital, Medical School of Ningbo University, 315000, China
| | - Dehui Chen
- Fujian Medical University, Fuzhou 350001, China
| | - Bin Lin
- Fujian Medical University, Fuzhou 350001, China
| | - Xin Zhao
- Fujian Medical University, Fuzhou 350001, China
| | - Jiemin Lin
- Fujian Medical University, Fuzhou 350001, China
| | - Jinxin Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China.
| | - Wenge Liu
- Fujian Medical University Union Hospital, Fuzhou 350001, China.
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Comparison of the Morphological and Structural Characteristic of Bioresorbable and Biocompatible Hydroxyapatite-Loaded Biopolymer Composites. NANOMATERIALS 2021; 11:nano11123194. [PMID: 34947543 PMCID: PMC8707529 DOI: 10.3390/nano11123194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 11/21/2022]
Abstract
Calcium phosphate (CaP)-based ceramic–biopolymer composites can be regarded as innovative bioresorbable coatings for load-bearing implants that can promote the osseointegration process. The carbonated hydroxyapatite (cHAp) phase is the most suitable CaP form, since it has the highest similarity to the mineral phase in human bones. In this paper, we investigated the effect of wet chemical preparation parameters on the formation of different CaP phases and compared their morphological and structural characteristics. The results revealed that the shape and crystallinity of CaP particles were strongly dependent on the post-treatment methods, such as heat or alkaline treatment of as-precipitated powders. In the next step, the optimised cHAp particles have been embedded into two types of biopolymers, such as polyvinyl pyrrolidone (PVP) and cellulose acetate (CA). The pure polymer fibres and the cHAp–biopolymer composites were produced using a novel electrospinning technique. The SEM images showed the differences between the morphology and network of CA and PVP fibres as well as proved the successful attachment of cHAp particles. In both cases, the fibres were partially covered with cHAp clusters. The SEM measurements on samples after one week of immersion in PBS solution evidenced the biodegradability of the cHAp–biopolymer composites.
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11
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Singh YP, Dasgupta S, Bhaskar R, Agrawal AK. Monetite addition into gelatin based freeze-dried scaffolds for improved mechanical and osteogenic properties. Biomed Mater 2021; 16. [PMID: 34624878 DOI: 10.1088/1748-605x/ac2e17] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 10/08/2021] [Indexed: 11/12/2022]
Abstract
This study was aimed at fabricating monetite nanoparticles impregnated gelatin-based composite scaffold to improve the chemical, mechanical and osteogenic properties. Scaffolds were fabricated using a freeze-drying technique of the slurry containing a varying proportion of gelatin and monetite. The lyophilized scaffolds were cross-linked with 0.25 wt% glutaraldehyde solution to obtain a three-dimensional (3D) interconnected porous microstructure with improved mechanical strength and stability in a physiological environment. The fabricated scaffolds possessed >80% porosity having 3D interconnected pore size distribution varying between 65 and 270 μm as evident from field emission scanning electron microscopy analysis. The average pore size of the prepared scaffold decreased with monetite addition as reflected in values of 210 μm for pure gelatin GM0scaffold and 118 μm registered by GM20scaffold. On increase in monetite content up to 20 wt% of total polymer concentration, compressive strength of the prepared scaffolds was increased from 0.92 MPa in pure gelatin-based GM0to 2.43 MPa in GM20. Up to 20 wt% of monetite reinforced composite scaffolds exhibited higher bioactivity as compared to that observed in pure gelatin-based GM0scaffold. Simulated body fluid (SBF) study and alizarin red assays confirmed higher bio-mineralization ability of GM20as compared to that exhibited by GM0. Human preosteoblast cells (MG-63) revealed higher degree of filopodia and lamellipodia extensions and excellent spreading behavior to anchor with GM20matrix as compared to that onto GM0and GM10. MTT assay and alkaline phosphatase staining study indicated that MG-63 cells found a more conducive environment to proliferate and subsequently differentiate into osteoblast lineage when exposed to GM20scaffolds rather than to GM0and GM10. This study revealed that up to 20 wt% monetite addition in gelatin could improve the performance of prepared scaffolds and serve as an efficient candidate to repair and regenerate bone tissues at musculoskeletal defect sites.
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Affiliation(s)
- Yogendra Pratap Singh
- Department of Ceramic Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Sudip Dasgupta
- Department of Ceramic Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
| | - Rakesh Bhaskar
- Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, Odisha 769008, India
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12
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Zhou H, Yang L, Gbureck U, Bhaduri SB, Sikder P. Monetite, an important calcium phosphate compound-Its synthesis, properties and applications in orthopedics. Acta Biomater 2021; 127:41-55. [PMID: 33812072 DOI: 10.1016/j.actbio.2021.03.050] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/15/2022]
Abstract
This review recognizes a unique calcium phosphate (CaP) phase known as monetite or dicalcium phosphate anhydrous (DCPA, CaHPO4), and presents an overview of its properties, processing, and applications in orthopedics. The motivation for the present effort is to highlight the state-of-the-art research and development of monetite and propel the research community to explore more of its potentials in orthopedics. After a brief introduction of monetite, we provide a summary of its various synthesis routes like dehydration, solvent-based, energy-assisted processes and also discuss the formation of different crystal structures with respect to the synthesis conditions. Subsequently, we discuss the material's noteworthy physico-chemical properties including the crystal structure, vibrational spectra, solubility, thermal decomposition, and conversion to other phases. Of note, we focus on the biological (in vitro and in vivo) properties of monetite, given its ever-increasing popularity as a biomaterial for medical implants. Appropriately, we discuss various orthopedic applications of monetite as bone cement, implant coatings, granules for defect fillers, and scaffolds. Many in vitro and in vivo studies confirmed the favorable osteointegration and osteoconduction properties of monetite products, along with a better balance between implant resorption and new bone formation as compared to other CaP phases. The review ends with translational aspects of monetite and presents thoughts about its possible future research directions. Further research may explore but not limited to improvements in mechanical strength of monetite-based scaffolds, using monetite particles as a therapeutic agent delivery, and tissue engineering strategies where monetite serves as the biomaterial. STATEMENT OF SIGNIFICANCE: This is the first review that focusses on the favorable potential of monetite for hard tissue repair and regeneration. The article accurately covers the "Synthesis-Structure-Property-Applications" correlations elaborating on monetite's diverse material properties. Special focus is put on the in vitro and in vivo properties of the material highlighting monetite as an orthopedic material-of-choice. The synthesis techniques are discussed which provide important information about the different fabrication routes for monetite. Most importantly, the review provides comprehensive knowledge about the diverse biomedical applications of monetite as granules, defect--specific scaffolds, bone cements and implant coatings. This review will help to highlight monetite's potential as an effective regenerative medicine and catalyze the continuing translation of this bioceramic from the laboratory to clinics.
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Affiliation(s)
- H Zhou
- Center for Health Science and Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China; International Research Center for Translational Orthopaedics (IRCTO), Jiangsu, China
| | - L Yang
- Center for Health Science and Engineering, School of Materials Science and Engineering, Hebei University of Technology, Tianjin, China; International Research Center for Translational Orthopaedics (IRCTO), Jiangsu, China
| | - U Gbureck
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Würzburg, Germany
| | - S B Bhaduri
- Department of Mechanical, Industrial & Manufacturing Engineering, The University of Toledo, Toledo, OH, USA; ENG-EEC Division, The National Science Foundation (NSF), Alexandria, VA, USA
| | - P Sikder
- Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, USA.
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13
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Sarrigiannidis S, Moussa H, Dobre O, Dalby MJ, Tamimi F, Salmeron-Sanchez M. Chiral Tartaric Acid Improves Fracture Toughness of Bioactive Brushite-Collagen Bone Cements. ACS APPLIED BIO MATERIALS 2020; 3:5056-5066. [PMID: 32904797 PMCID: PMC7461128 DOI: 10.1021/acsabm.0c00555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/06/2020] [Indexed: 01/08/2023]
Abstract
Brushite cements are promising bone regeneration materials with limited biological and mechanical properties. Here, we engineer a mechanically improved brushite-collagen type I cement with enhanced biological properties by use of chiral chemistry; d- and l-tartaric acid were used to limit crystal growth and increase the mechanical properties of brushite-collagen cements. The impact of the chiral molecules on the cements was examined with Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). A 3-point bend test was utilized to study the fracture toughness, and cell attachment and morphology studies were carried out to demonstrate biocompatibility. XRD and SEM analyses showed that l-, but not d-tartaric acid, significantly restrained brushite crystal growth by binding to the {010} plane of the mineral and increased brushite crystal packing and the collagen interaction area. l-Tartaric acid significantly improved fracture toughness compared to traditional brushite by 30%. Collagen significantly enhanced cell morphology and focal adhesion expression on l-tartaric acid-treated brushite cements.
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Affiliation(s)
- Stylianos
O. Sarrigiannidis
- Centre
for the Cellular Microenvironment, University
of Glasgow, Rankine Building, 79−85 Oakfield Ave, Glasgow G12 8LT, United
Kingdom
| | - Hanan Moussa
- Faculty
of Dentistry, McGill University, Strathcona Building, 3640 University
Street, Montreal, Quebec H3A 2B2, Canada
- Faculty
of Dentistry, Benghazi University, Benghazi 9504, Libya
| | - Oana Dobre
- Centre
for the Cellular Microenvironment, University
of Glasgow, Rankine Building, 79−85 Oakfield Ave, Glasgow G12 8LT, United
Kingdom
| | - Matthew J. Dalby
- Centre
for the Cellular Microenvironment, University
of Glasgow, Joseph Black Building, University Pl, Glasgow G12 8QQ, United Kingdom
| | - Faleh Tamimi
- Faculty
of Dentistry, McGill University, Strathcona Building, 3640 University
Street, Montreal, Quebec H3A 2B2, Canada
- College
of Dental Medicine, Qatar University, Doha, Qatar
| | - Manuel Salmeron-Sanchez
- Centre
for the Cellular Microenvironment, University
of Glasgow, Rankine Building, 79−85 Oakfield Ave, Glasgow G12 8LT, United
Kingdom
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14
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Electrospun Fibre Webs Templated Synthesis of Mineral Scaffolds Based on Calcium Phosphates and Barium Titanate. NANOMATERIALS 2020; 10:nano10040772. [PMID: 32316366 PMCID: PMC7221861 DOI: 10.3390/nano10040772] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 04/10/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
The current work focuses on the development of mineral scaffolds with complex composition and controlled morphology by using a polymeric template in the form of nonwoven fibre webs fabricated through electrospinning. By a cross-linking process, gelatine fibres stable in aqueous solutions were achieved, these being further subjected to a loading step with two types of mineral phases: calcium phosphates deposited by chemical reaction and barium titanate nanoparticles as decoration on the previously achieved structures. Thus, hybrid materials were obtained and subsequently processed in terms of freeze-drying and heat treating with the purpose of burning the template and consolidating the mineral part as potential bone implants with improved biological response by external stimulation. The results confirmed the tunable morphology, as well as the considerable applicability of both as-prepared and final samples for the development of medical devices, which encourages the continuation of research in the direction of assessing the synergistic contribution of barium titanate domains polarisation/magnetisation by external applied fields.
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15
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Sheikh Z, Abdallah MN, Al-Jaf F, Chen G, Hamdan N, Young RN, Grynpas MD, Glogauer M. Achieving enhanced bone regeneration using monetite granules with bone anabolic drug conjugates (C3 and C6) in rat mandibular defects. J Biomed Mater Res B Appl Biomater 2020; 108:2670-2680. [PMID: 32159274 DOI: 10.1002/jbm.b.34598] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 02/03/2020] [Accepted: 02/22/2020] [Indexed: 12/24/2022]
Abstract
Bone grafting procedures are commonly used to manage bone defects in the craniofacial region. Monetite is an excellent biomaterial option for bone grafting, however, it is limited by lack of osteoinduction. Several molecules can be incorporated within the monetite matrix to promote bone regeneration. The aim was to investigate whether incorporating bone forming drug conjugates (C3 and C6) within monetite can improve their ability to regenerate bone in bone defects. Bilateral bone defects were created in the mandible of 24 Sprague-Dawley rats and were then packed with monetite control, monetite+C3 or monetite+C6. After 2 and 4 weeks, post-mortem samples were analyzed using microcomputed tomography, histology and back-scattered electron microscopy to calculate the percentages of bone formation and remaining graft material. At 2 and 4 weeks, monetite with C3 and C6 demonstrated higher bone formation than monetite control, while monetite+C6 had the highest bone formation percentage at 4 weeks. There were no significant differences in the remaining graft material between the groups at 2 or 4 weeks. Incorporating these anabolic drug conjugates within the degradable matrix of monetite present a promising bone graft alternative for bone regeneration and repair in orthopedic as well as oral and maxillofacial applications.
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Affiliation(s)
- Zeeshan Sheikh
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathology, University of Toronto, Toronto, Ontario, Canada.,Department of Dental Clinical Sciences, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Mohamed-Nur Abdallah
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.,Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Faik Al-Jaf
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada
| | - Gang Chen
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Nader Hamdan
- Department of Dental Clinical Sciences, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Robert N Young
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Marc D Grynpas
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada.,Department of Laboratory Medicine and Pathology, University of Toronto, Toronto, Ontario, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, Ontario, Canada.,Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
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16
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Mocanu AC, Stan GE, Maidaniuc A, Miculescu M, Antoniac IV, Ciocoiu RC, Voicu ȘI, Mitran V, Cîmpean A, Miculescu F. Naturally-Derived Biphasic Calcium Phosphates through Increased Phosphorus-Based Reagent Amounts for Biomedical Applications. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E381. [PMID: 30691077 PMCID: PMC6384751 DOI: 10.3390/ma12030381] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/21/2019] [Accepted: 01/23/2019] [Indexed: 01/11/2023]
Abstract
Calcium carbonate from marble and seashells is an eco-friendly, sustainable, and largely available bioresource for producing natural bone-like calcium phosphates (CaPs). Based on three main objectives, this research targeted the: (i) adaptation of an indirect synthesis route by modulating the amount of phosphorus used in the chemical reaction, (ii) comprehensive structural, morphological, and surface characterization, and (iii) biocompatibility assessment of the synthesized powdered samples. The morphological characterization was performed on digitally processed scanning electron microscopy (SEM) images. The complementary 3D image augmentation of SEM results also allowed the quantification of roughness parameters. The results revealed that both morphology and roughness were modulated through the induced variation of the synthesis parameters. Structural investigation of the samples was performed by Fourier transform infrared spectroscopy and X-ray diffraction. Depending on the phosphorus amount from the chemical reaction, the structural studies revealed the formation of biphasic CaPs based on hydroxyapatite/brushite or brushite/monetite. The in vitro assessment of the powdered samples demonstrated their capacity to support MC3T3-E1 pre-osteoblast viability and proliferation at comparable levels to the negative cytotoxicity control and the reference material (commercial hydroxyapatite). Therefore, these samples hold great promise for biomedical applications.
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Affiliation(s)
- Aura-Cătălina Mocanu
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania.
- Department of Research, Development and Innovation, S.C. Nuclear NDT Research & Services S.R.L, 104 Berceni Str., Central Laboratory Building, District 4, 041919 Bucharest, Romania.
| | - George E Stan
- National Institute of Materials Physics, Laboratory of Multifunctional Materials and Structures, 405A Atomistilor Str., 077125 Măgurele-Ilfov, Romania.
| | - Andreea Maidaniuc
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania.
- Destructive and Nondestructive Testing Laboratory,S.C. Nuclear NDT Research & Services S.R.L, 104 Berceni Str., Central Laboratory Building, District 4, 041919 Bucharest, Romania.
| | - Marian Miculescu
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania.
| | - Iulian Vasile Antoniac
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania.
| | - Robert-Cătălin Ciocoiu
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania.
| | - Ștefan Ioan Voicu
- Department of Analytical Chemistry and Environmental Engineering, University Politehnica of Bucharest, 1-7 Gh. Polizu Str., Polizu campus, L 015 Building, District 1, 011061 Bucharest, Romania.
| | - Valentina Mitran
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania.
| | - Anișoara Cîmpean
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, 050095 Bucharest, Romania.
| | - Florin Miculescu
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, District 6, 060042 Bucharest, Romania.
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17
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Raucci MG, Fasolino I, Pastore SG, Soriente A, Capeletti LB, Dessuy MB, Giannini C, Schrekker HS, Ambrosio L. Antimicrobial Imidazolium Ionic Liquids for the Development of Minimal Invasive Calcium Phosphate-Based Bionanocomposites. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42766-42776. [PMID: 30456941 DOI: 10.1021/acsami.8b12696] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Biofilm formation is one of the main obstacles that occur during in vivo implantation, which compromises the implant functionality and patients' health. This is the inspiration for the development of novel implant materials that contain broad-spectrum antimicrobial activity, including antibacterial and antifungal, and enable the local release of antimicrobial agents. Here, multifunctional calcium phosphate-ionic liquid (IL) materials, possessing antimicrobial and repair/regeneration features plus injectability, are proposed as implants in minimally invasive surgery. This approach was based on the loading of 1-alkyl-3-alkylimidazolium chloride ionic liquids (ILs) (C nMImCl ( n = 4, 10, 16) and (C10)2MImCl) during the in situ sol-gel synthesis of calcium phosphates (CaP) and study of their effects on CaP crystallization and biological properties. Physical, morphological, and biological investigations were performed to evaluate the bionanocomposites' properties. The IL N-alkyl chain length influenced the crystallization of CaP and, consequently, the biological properties, which afforded bionanocomposites (when loaded with C16MImCl or (C10)2MImCl) that, (i) inhibit both in vitro bacterial and fungal growth; (ii) reduce the in vitro inflammatory response; (iii) induce osteogenic differentiation in the basal medium of human mesenchymal stem cells; and (iv) are injectable. This will enable the design of multifunctional injectable implants with antimicrobial, anti-inflammatory, and regenerative properties to be used in minimally invasive surgery of bone and maxillofacial defects.
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Affiliation(s)
- Maria Grazia Raucci
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR) , Mostra d'Oltremare Pad. 20-Viale J.F. Kennedy 54 , Naples 80125 , Italy
| | - Ines Fasolino
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR) , Mostra d'Oltremare Pad. 20-Viale J.F. Kennedy 54 , Naples 80125 , Italy
| | - Stella G Pastore
- Institute of Crystallography-National Research Council (IC-CNR) . Via G. Amendola 122-O , Bari 70125 , Italy
| | - Alessandra Soriente
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR) , Mostra d'Oltremare Pad. 20-Viale J.F. Kennedy 54 , Naples 80125 , Italy
| | - Larissa B Capeletti
- Laboratory of Technological Processes and Catalysis , Institute of Chemistry-Universidade Federal do Rio Grande do Sul , Avenida Bento Gonçalves 9500 , Porto Alegre , RS CEP: 91.501-970 , Brazil
| | - Morgana B Dessuy
- Laboratory of Technological Processes and Catalysis , Institute of Chemistry-Universidade Federal do Rio Grande do Sul , Avenida Bento Gonçalves 9500 , Porto Alegre , RS CEP: 91.501-970 , Brazil
| | - Cinzia Giannini
- Institute of Crystallography-National Research Council (IC-CNR) . Via G. Amendola 122-O , Bari 70125 , Italy
| | - Henri S Schrekker
- Laboratory of Technological Processes and Catalysis , Institute of Chemistry-Universidade Federal do Rio Grande do Sul , Avenida Bento Gonçalves 9500 , Porto Alegre , RS CEP: 91.501-970 , Brazil
| | - Luigi Ambrosio
- Institute of Polymers, Composites and Biomaterials-National Research Council (IPCB-CNR) , Mostra d'Oltremare Pad. 20-Viale J.F. Kennedy 54 , Naples 80125 , Italy
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18
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Inflammatory-Driven Angiogenesis in Bone Augmentation with Bovine Hydroxyapatite, B-Tricalcium Phosphate, and Bioglasses: A Comparative Study. J Immunol Res 2018; 2018:9349207. [PMID: 30298138 PMCID: PMC6157209 DOI: 10.1155/2018/9349207] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/12/2018] [Accepted: 07/25/2018] [Indexed: 01/30/2023] Open
Abstract
Introduction The clinical use of bioactive materials for bone augmentation has remained a challenge because of predictability and effectiveness concerns, as well as increased costs. The purpose of this study was to analyse the ability to integrate bone substitutes by evaluating the immunohistochemical expression of the platelet endothelial cell adhesion molecules, vascular endothelial growth factor, collagen IV, laminin, and osteonectin, in the vicinity of bone grafts, enabling tissue revascularization and appearance of bone lamellae. There is a lack of in vivo studies of inflammatory-driven angiogenesis in bone engineering using various grafts. Methods The study was performed in animal experimental model on the standardized monocortical defects in the tibia of 20 New Zealand rabbits. The defects were augmented with three types of bone substituents. The used bone substituents were beta-tricalcium phosphate, bovine hydroxyapatite, and bioactive glasses. After a period of 6 months, bone fragments were harvested for histopathologic examination. Endothelial cell analysis was done by analysing vascularization with PECAM/CD31 and VEGF and fibrosis with collagen IV, laminin, and osteonectin stains. Statistical analysis was realized by descriptive analysis which was completed with the kurtosis and skewness as well as the Kruskal-Wallis and Mann-Whitney statistical tests. Results The discoveries show that the amount of bone that is formed around beta-tricalcium phosphate and bovine hydroxyapatite is clearly superior to the bioactive glasses. Both the lumen diameter and the number of vessels were slightly increased in favor of beta-tricalcium phosphate. Conclusion We can conclude that bone substitutes as bovine bone and beta-tricalcium phosphate have significant increased angiogenesis (and subsequent improved osteogenesis) compared to the bioactive glass. In our study, significant angiogenesis is linked with a greater tissue formation, indicating that in bone engineering with the allografts we used, inflammation has more benefic effects, the catabolic action being exceeded by the tissue formation.
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19
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Sladkova M, Palmer M, Öhman C, Cheng J, Al-Ansari S, Saad M, Engqvist H, de Peppo GM. Engineering human bone grafts with new macroporous calcium phosphate cement scaffolds. J Tissue Eng Regen Med 2017. [PMID: 28635177 DOI: 10.1002/term.2491] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Bone engineering opens the possibility to grow large amounts of tissue products by combining patient-specific cells with compliant biomaterials. Decellularized tissue matrices represent suitable biomaterials, but availability, long processing time, excessive cost, and concerns on pathogen transmission have led to the development of biomimetic synthetic alternatives. We recently fabricated calcium phosphate cement (CPC) scaffolds with variable macroporosity using a facile synthesis method with minimal manufacturing steps and demonstrated long-term biocompatibility in vitro. However, there is no knowledge on the potential use of these scaffolds for bone engineering and whether the porosity of the scaffolds affects osteogenic differentiation and tissue formation in vitro. In this study, we explored the bone engineering potential of CPC scaffolds with two different macroporosities using human mesenchymal progenitors derived from induced pluripotent stem cells (iPSC-MP) or isolated from bone marrow (BMSC). Biomimetic decellularized bone scaffolds were used as reference material in all experiments. The results demonstrate that, irrespective of their macroporosity, the CPC scaffolds tested in this study support attachment, viability, and growth of iPSC-MP and BMSC cells similarly to decellularized bone. Importantly, the tested materials sustained differentiation of the cells as evidenced by increased expression of osteogenic markers and formation of a mineralized tissue. In conclusion, the results of this study suggest that the CPC scaffolds fabricated using our method are suitable to engineer bone grafts from different cell sources and could lead to the development of safe and more affordable tissue grafts for reconstructive dentistry and orthopaedics and in vitro models for basic and applied research.
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Affiliation(s)
- Martina Sladkova
- The New York Stem Cell Foundation Research Institute, New York, NY, USA
| | - Michael Palmer
- Division of Applied Material Sciences, Uppsala University, Uppsala, Sweden
| | - Caroline Öhman
- Division of Applied Material Sciences, Uppsala University, Uppsala, Sweden
| | - Jiayi Cheng
- The New York Stem Cell Foundation Research Institute, New York, NY, USA
| | - Shoug Al-Ansari
- The New York Stem Cell Foundation Research Institute, New York, NY, USA
| | - Munerah Saad
- The New York Stem Cell Foundation Research Institute, New York, NY, USA
| | - Håkan Engqvist
- Division of Applied Material Sciences, Uppsala University, Uppsala, Sweden
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20
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Sheikh Z, Hamdan N, Ikeda Y, Grynpas M, Ganss B, Glogauer M. Natural graft tissues and synthetic biomaterials for periodontal and alveolar bone reconstructive applications: a review. Biomater Res 2017; 21:9. [PMID: 28593053 PMCID: PMC5460509 DOI: 10.1186/s40824-017-0095-5] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 05/16/2017] [Indexed: 12/11/2022] Open
Abstract
Periodontal disease is categorized by the destruction of periodontal tissues. Over the years, there have been several clinical techniques and material options that been investigated for periodontal defect repair/regeneration. The development of improved biomaterials for periodontal tissue engineering has significantly improved the available treatment options and their clinical results. Bone replacement graft materials, barrier membranes, various growth factors and combination of these have been used. The available bone tissue replacement materials commonly used include autografts, allografts, xenografts and alloplasts. These graft materials mostly function as osteogenic, osteoinductive and/or osteoconductive scaffolds. Polymers (natural and synthetic) are more widely used as a barrier material in guided tissue regeneration (GTR) and guided bone regeneration (GBR) applications. They work on the principle of epithelial cell exclusion to allow periodontal ligament and alveolar bone cells to repopulate the defect before the normally faster epithelial cells. However, in an attempt to overcome complications related to the epithelial down-growth and/or collapse of the non-rigid barrier membrane and to maintain space, clinicians commonly use a combination of membranes with hard tissue grafts. This article aims to review various available natural tissues and biomaterial based bone replacement graft and membrane options used in periodontal regeneration applications.
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Affiliation(s)
- Zeeshan Sheikh
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Room 221, 150 College Street, Toronto, ON M5S 3E2 Canada
- Lunenfeld-Tanenbaum Research Institute, Mt. Sinai Hospital, 25 Orde St, Toronto, ON M5T 3H7 Canada
| | - Nader Hamdan
- Department of Dental Clinical Sciences, Faculty of Dentistry, Dalhousie University, 5981 University Avenue, PO Box 15000, Halifax, Nova Scotia B3H 4R2 Canada
| | - Yuichi Ikeda
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Room 221, 150 College Street, Toronto, ON M5S 3E2 Canada
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima Bunkyo-ku, Tokyo, 113-5810 Japan
| | - Marc Grynpas
- Lunenfeld-Tanenbaum Research Institute, Mt. Sinai Hospital, 25 Orde St, Toronto, ON M5T 3H7 Canada
| | - Bernhard Ganss
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Room 221, 150 College Street, Toronto, ON M5S 3E2 Canada
| | - Michael Glogauer
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Room 221, 150 College Street, Toronto, ON M5S 3E2 Canada
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Sladkova M, Palmer M, Öhman C, Alhaddad RJ, Esmael A, Engqvist H, de Peppo GM. Fabrication of macroporous cement scaffolds using PEG particles: In vitro evaluation with induced pluripotent stem cell-derived mesenchymal progenitors. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:640-52. [DOI: 10.1016/j.msec.2016.06.075] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/07/2016] [Accepted: 06/23/2016] [Indexed: 02/02/2023]
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Shuang Y, Yizhen L, Zhang Y, Fujioka-Kobayashi M, Sculean A, Miron RJ. In vitro characterization of an osteoinductive biphasic calcium phosphate in combination with recombinant BMP2. BMC Oral Health 2016; 17:35. [PMID: 27485617 PMCID: PMC4971713 DOI: 10.1186/s12903-016-0263-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 07/29/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The repair of alveolar bone defects with growth factors and bone grafting materials has played a pivotal role in modern dentistry. Recombinant human bone morphogenetic protein-2 (rhBMP2), an osteoinductive growth factor capable of cell recruitment and differentiation towards the osteoblast lineage, has been utilized in combination with various biomaterials to further enhance new bone formation. Recently, a group of novel biphasic calcium phosphate (BCP) bone grafting materials have been demonstrated to possess osteoinductive properties by demonstrating signs of ectopic bone formation. The aim of the present study was to study the effects of rhBMP2 in combination with osteoinductive BCP bone grafts on osteoblast cell behaviour. METHODS MC3T3-E1 pre-osteoblasts were seeded on 1) control tissue culture plastic, 2) 10 mg of BCP alone, 3) 100 ng rhBMP2, and 4) 100 ng rhBMP2+ 10 mg of BCP and analyzed for cell recruitment via a Transwell chamber, proliferation via an MTS assay and differentiation as assessed by alkaline phosphatase (ALP) activity, alizarin red staining and real-time PCR for osteoblast differentiation markers including Runx2, collagen1, ALP, and osteocalcin (OCN). RESULTS rhBMP2 was able to significantly upregulate cell recruitment whereas the addition of BCP as well as BCP alone had no additional ability to improve osteoblast recruitment. Both BCP and rhBMP2 were able to significantly increase cell proliferation at 3 and 5 days post seeding and cell number was further enhanced when rhBMP2 was combined with BCP. In addition, the combination of rhBMP2 with BCP significantly improved ALP activity at 7 and 14 days post seeding, alizarin red staining at 14 days, and mRNA levels of Runx2, ALP and osteocalcin when compared to cells seeded with rhBMP2 alone or BCP alone. CONCLUSIONS The results from the present study demonstrate that 1) the osteoinductive potential of BCP bone particles is equally as osteopromotive as rhBMP2 on in vitro osteoblast differentiation and 2) BCP particles in combination with rhBMP2 is able to further increase the osteopromotive differentiation of osteoblasts in vitro when compared to either rhBMP2 alone or BCP alone. Future animal testing is further required to investigate this combination approach on new bone formation.
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Affiliation(s)
- Yang Shuang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Lin Yizhen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, 430079, People's Republic of China.
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Bern University Hospital, Inselspital, Bern, 3010, Switzerland
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University, 3-18-15 Tokushima, Tokushima, Japan
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, Bern, 3010, Switzerland
| | - Richard J Miron
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, Bern, 3010, Switzerland.
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA.
- Department of Oral Surgery and Stomatology, University of Bern, Bern, Switzerland.
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Miron RJ, Sculean A, Shuang Y, Bosshardt DD, Gruber R, Buser D, Chandad F, Zhang Y. Osteoinductive potential of a novel biphasic calcium phosphate bone graft in comparison with autographs, xenografts, and DFDBA. Clin Oral Implants Res 2016; 27:668-75. [PMID: 26227281 DOI: 10.1111/clr.12647] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Since the original description of osteoinduction in the early 20th century, the study and development of innovative biomaterials has emerged. Recently, novel synthetic bone grafts have been reported with potential to form ectopic bone in vivo. However, their full characterization in comparison with other leading bone grafts has not been investigated. The aim of this study was to determine the osteoinductive potential of bone grafts by comparing autogenous bone grafts, demineralized freeze-dried bone allografts (DFDBA), a commonly utilized natural bone mineral (NBM) from bovine origin (Bio-Oss), and a newly developed biphasic calcium phosphate (BCP). MATERIALS AND METHODS Grafts were compared in vitro for their ability to stimulate bone marrow stromal cell (BMSC) migration, proliferation, and differentiation as assessed by quantitative real-time PCR for genes coding for bone markers including Runx2, collagen I, and osteocalcin. Furthermore, bone grafts were implanted in the calf muscle of 12 beagle dogs to determine their potential to form ectopic bone in vivo. RESULTS The in vitro results demonstrate that both autografts and DFDBA show potential for cell recruitment, whereas only autografts and BCP demonstrated the ability to differentiate BMSCs toward the osteoblast lineage. The in vivo ectopic bone model demonstrated that while NBM particles were not osteoinductive and autogenous bone grafts were resorbed quickly in vivo, ectopic bone formation was reported in DFDBA and in synthetic BCP grafts. CONCLUSION The modifications in nanotopography and chemical composition of the newly developed BCP bone grafts significantly promoted ectopic bone formation confirming their osteoinductive potential. In conclusion, the results from this study provide evidence that synthetic bone grafts not only serve as a three-dimensional scaffold but are also able to promote osteoinduction.
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Affiliation(s)
- Richard J Miron
- Faculté de Medecine Dentaire, Pavillon de Médecine Dentaire, Université Laval, Québec City, QC, Canada
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Yang Shuang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Dieter D Bosshardt
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Reinhard Gruber
- Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Daniel Buser
- Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - Fatiha Chandad
- Faculté de Medecine Dentaire, Pavillon de Médecine Dentaire, Université Laval, Québec City, QC, Canada
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST), Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
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Simeonov MS, Apostolov AA, Vassileva ED. In situ calcium phosphate deposition in hydrogels of poly(acrylic acid)–polyacrylamide interpenetrating polymer networks. RSC Adv 2016. [DOI: 10.1039/c5ra26066c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Interpenetrating networks of poly(acrylic acid) and polyacrylamide were used for the first time as templates for in situ calcium phosphate (CP) deposition in an attempt to mimic the naturally occurring biomineralization.
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Affiliation(s)
- M. S. Simeonov
- Sofia University
- Faculty of Chemistry and Pharmacy
- Bulgaria
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Zhang Y, Yang S, Zhou W, Fu H, Qian L, Miron RJ. Addition of a Synthetically Fabricated Osteoinductive Biphasic Calcium Phosphate Bone Graft to BMP2 Improves New Bone Formation. Clin Implant Dent Relat Res 2015; 18:1238-1247. [PMID: 26510170 DOI: 10.1111/cid.12384] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Bone morphogenetic protein-2 (BMP2) has been successfully utilized in dentistry to promote new bone formation because of its osteoinductive ability to recruit mesenchymal progenitor cells and induce their differentiation to bone-forming osteoblasts. Recently, novel biphasic calcium phosphate scaffolds have been developed with similar osteoinductive properties capable of forming ectopic bone formation. PURPOSE The aim of the present study was to assess whether the combination of BMP2 with this novel Biphasic Calcium Phosphate (BCP) scaffold may additionally promote new bone regeneration. MATERIALS AND METHODS Cylindrical bone defects measuring 2.5 mm were created bilaterally in the femurs of 18 Wistar rats. After 4 weeks, the following six groups were assessed for new bone formation by micro-computed tomography (CT) as well as histological assessment: 1) collagen scaffolds + 20 μg of BMP2; 2) collagen scaffolds + 50 μg of BMP2; 3) collagen scaffolds + 100 μg of BMP2; 4) BCP scaffolds + 20 μg of BMP2; 5) BCP scaffolds + 50 μg of BMP2; and 6) BCP scaffolds + 100 μg of BMP2. Furthermore, tartrate-resistant acid phosphatase (TRAP) staining was utilized to assess osteoclast activity and osteoclast number. The release kinetics of BMP2 from both BCP and collagen scaffolds was investigated over a 14-day period. RESULTS The results from present study demonstrate that BMP2 is able to promote new bone formation in a concentration dependant manner when loaded with either a collagen scaffolds or BCP scaffolds. Micro-CT analysis demonstrated significantly higher levels of new bone formation in groups containing BCP + BMP2 when compared with collagen scaffolds + BMP2. BMP2 had little effect on osteoclast activity; however, less TRAP staining and osteoclast number was observed in the defects receiving collagen scaffolds when compared with BCP scaffolds. The release of BMP2 over time was rapidly released after 1 day on BCP scaffolds whereas a gradually release over time was observed for collagen scaffolds up to 14 days. CONCLUSION The osteoinductive properties of BMP2 may further be enhanced by its combination with a novel synthetically fabricated osteoinductive BCP scaffold. Future clinical testing is required to further assess these preliminary findings.
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Affiliation(s)
- Yufeng Zhang
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, China
| | - Shuang Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wei Zhou
- Hangzhou Jiuyuan Gene Engineering Co, Hangzhou, China
| | - Hang Fu
- Hangzhou Jiuyuan Gene Engineering Co, Hangzhou, China
| | - Li Qian
- Hangzhou Jiuyuan Gene Engineering Co, Hangzhou, China
| | - Richard J Miron
- Department of Periodontology, Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
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Sheikh Z, Sima C, Glogauer M. Bone Replacement Materials and Techniques Used for Achieving Vertical Alveolar Bone Augmentation. MATERIALS 2015. [PMCID: PMC5455762 DOI: 10.3390/ma8062953] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Alveolar bone augmentation in vertical dimension remains the holy grail of periodontal tissue engineering. Successful dental implant placement for restoration of edentulous sites depends on the quality and quantity of alveolar bone available in all spatial dimensions. There are several surgical techniques used alone or in combination with natural or synthetic graft materials to achieve vertical alveolar bone augmentation. While continuously improving surgical techniques combined with the use of auto- or allografts provide the most predictable clinical outcomes, their success often depends on the status of recipient tissues. The morbidity associated with donor sites for auto-grafts makes these techniques less appealing to both patients and clinicians. New developments in material sciences offer a range of synthetic replacements for natural grafts to address the shortcoming of a second surgical site and relatively high resorption rates. This narrative review focuses on existing techniques, natural tissues and synthetic biomaterials commonly used to achieve vertical bone height gain in order to successfully restore edentulous ridges with implant-supported prostheses.
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Affiliation(s)
- Zeeshan Sheikh
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Room 221, Fitzgerald Building, 150 College Street, Toronto, ON M5S 3E2, Canada; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +1-514-224-7490
| | - Corneliu Sima
- Department of Applied Oral Sciences, The Forsyth Institute, 245 First Street, Cambridge, MA 02142, USA; E-Mail:
| | - Michael Glogauer
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Room 221, Fitzgerald Building, 150 College Street, Toronto, ON M5S 3E2, Canada; E-Mail:
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In vitro co-culture strategies to prevascularization for bone regeneration: A brief update. Tissue Eng Regen Med 2015. [DOI: 10.1007/s13770-014-0095-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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Gentile P, Bellucci D, Sola A, Mattu C, Cannillo V, Ciardelli G. Composite scaffolds for controlled drug release: role of the polyurethane nanoparticles on the physical properties and cell behaviour. J Mech Behav Biomed Mater 2014; 44:53-60. [PMID: 25617789 DOI: 10.1016/j.jmbbm.2014.12.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 12/15/2014] [Accepted: 12/16/2014] [Indexed: 10/24/2022]
Abstract
Localised delivery of appropriate biomolecule/drug(s) can be suitable to prevent postoperative infections and inflammation after scaffold implantation in vivo. In this study composite shell scaffolds, based on an internally produced bioactive glass and a commercial hydroxyapatite, were surface coated with a uniform polymeric layer, embedded with thermo-stable polyesterurethane (PU)-based nanoparticles (NPs), containing an anti-inflammatory drug (indomethacin; IDCM). The obtained functionalised scaffolds were subjected to physico-mechanical and biological characterisations. The results indicated that NPs incorporation into the gelatin coating of the composite scaffolds: 1) not changed significantly the micro-architecture of the scaffolds in terms of mean pore diameter and pore size distribution; 2) increased the compressive modulus; and 3) allowed to a sustained IDMC release (65-70% of the loaded-drug) within the first week of incubation in physiological solution. On the other hand, the NPs incorporation did not affect the biocompatibility of composite scaffolds, as evidenced by viability and alkaline phosphatase (ALP) activity of MG63 human osteoblast-like cells.
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Affiliation(s)
- Piergiorgio Gentile
- School of Clinical Dentistry, University of Sheffield, 19 Claremont Crescent, Sheffield S102TA, United Kingdom; Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, Turin 10129, Italy.
| | - Devis Bellucci
- University of Modena and Reggio Emilia, Department of Engineering "E. Ferrari", Via Pietro Vivarelli 10, Modena 41125, Italy
| | - Antonella Sola
- University of Modena and Reggio Emilia, Department of Engineering "E. Ferrari", Via Pietro Vivarelli 10, Modena 41125, Italy
| | - Clara Mattu
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, Turin 10129, Italy
| | - Valeria Cannillo
- University of Modena and Reggio Emilia, Department of Engineering "E. Ferrari", Via Pietro Vivarelli 10, Modena 41125, Italy
| | - Gianluca Ciardelli
- Politecnico di Torino, Department of Mechanical and Aerospace Engineering, Corso Duca degli Abruzzi 24, Turin 10129, Italy
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