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Gao W, Wang H, Liu R, Ba X, Deng K, Liu F. Simultaneous Regulation of the Mechanical/Osteogenic Capacity of Brushite Calcium Phosphate Cement by Incorporating with Poly(ethylene glycol) Dicarboxylic Acid. ACS Biomater Sci Eng 2024; 10:2062-2067. [PMID: 38466032 DOI: 10.1021/acsbiomaterials.3c00886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Brushite calcium phosphate cement (brushite CPC) is a prospective bone repair material due to its ideal resorption rates in vivo. However, the undesirable mechanical property and bioactivity limited its availability in clinic application. To address this issue, incorporating polymeric additives has emerged as a viable solution. In this study, poly(ethylene glycol) dicarboxylic acid, PEG(COOH), was synthesized and employed as the polymeric additive. The setting behavior, anti-washout ability, mechanical property, degradation rate, and osteogenic capacity of brushite CPC were regulated by incorporating PEG(COOH). The incorporation of PEG(COOH) with carboxylic acid groups demonstrated a positive effect on both mechanical properties and osteogenic activity in bone repair. This study offers valuable insights and suggests a promising strategy for the development of materials in bone tissue engineering.
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Affiliation(s)
- Wenshan Gao
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, China
- Affiliated Hospital of Hebei University, Hebei University, Baoding 071002, Hebei, China
| | - Hongjie Wang
- College of Basic Medicine, Hebei University, Baoding 071002, Hebei, China
- College of Clinical Medical, Hebei University, Baoding 071002, Hebei, China
| | - Rixu Liu
- College of Clinical Medical, Hebei University, Baoding 071002, Hebei, China
| | - Xinwu Ba
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, China
- Engineering Research Center for Nanomaterials, Henan University, Zhengzhou 450000, China
| | - Kuilin Deng
- College of Chemistry and Materials Science, Hebei University, Baoding 071002, Hebei, China
| | - Feng Liu
- College of Basic Medicine, Hebei University, Baoding 071002, Hebei, China
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2
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Wekwejt M, Khamenka M, Ronowska A, Gbureck U. Dual-Setting Bone Cement Based On Magnesium Phosphate Modified with Glycol Methacrylate Designed for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55533-55544. [PMID: 38058111 DOI: 10.1021/acsami.3c14491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Magnesium phosphate cement (MPC) is a suitable alternative for the currently used calcium phosphates, owing to beneficial properties like favorable resorption rate, fast hardening, and higher compressive strength. However, due to insufficient mechanical properties and high brittleness, further improvement is still expected. In this paper, we reported the preparation of a novel type of dual-setting cement based on MPC with poly(2-hydroxyethyl methacrylate) (pHEMA). The aim of our study was to evaluate the effect of HEMA addition, especially its concentration and premix time, on the selected properties of the composite. Several beneficial effects were found: better formability, shortened setting time, and improvement of mechanical strengths. The developed cements were hardening in ∼16-21 min, consisted of well-crystallized phases and polymerized HEMA, had porosity between ∼2-11%, degraded slowly by ∼0.1-4%/18 days, their wettability was ∼20-30°, they showed compressive and bending strength between ∼45-73 and 13-20 MPa, respectively, and, finally, their Young's Modulus was close to ∼2.5-3.0 GPa. The results showed that the optimal cement composition is MPC+15%HEMA and 4 min of polymer premixing time. Overall, our research suggested that this developed cement may be used in various biomedical applications.
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Affiliation(s)
- Marcin Wekwejt
- Biomaterials Technology Department, Faculty of Mechanical Engineering and Ship Technology, Gdańsk University of Technology, G. Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
| | - Maryia Khamenka
- Scientific Club "Materials in Medicine", Advanced Materials Centre, Gdańsk University of Technology, G. Narutowicza 11/12 Street, 80-233 Gdańsk, Poland
| | - Anna Ronowska
- Chair of Clinical Biochemistry, Department of Laboratory Medicine, Medical University of Gdańsk, 2x, M. Skłodowskiej-Curie 3a Street, 80-210 Gdańsk, Poland
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2 Street, D-97070 Würzburg, Germany
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3
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Rödel M, Teßmar J, Groll J, Gbureck U. Dual setting brushite—gelatin cement with increased ductility and sustained drug release. J Biomater Appl 2022; 36:1882-1898. [DOI: 10.1177/08853282221075877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel dual setting brushite-gelatin cement was achieved by genip ininitiated cross-linking of gelatin during cement setting. Although the combination of an inorganic and organic phase resulted in a decrease of the compressive strength from about 10 MPa without polymeric phase to 3–6–MPa for gelatin modified composites, an increase in elastic properties due to the gelatin hydrogel with a concentration of 10.0 w/v% was achieved. For a powder-to-liquid ratio of 2.5 g*mL−1, a shift of initial maximum stress value during compression testing was observed up to 5% deformation and tested samples showed a pseudo-ductile fracture behavior. The obtained composites of the different formulations were characterized regarding phase composition, porosity as well as drug loading capacity with rifampicin and vancomycin. For the latter, a sustained and prolonged release was realized with a drug release profile according to the Higuchi model and a release exponent of n = 0.5 for the formulation with a PLR of 2.5 g*mL−1 and an incorporation of 10.0 w/v% gelatin.
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Affiliation(s)
- Michaela Rödel
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Würzburg, Germany
| | - Jörg Teßmar
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Würzburg, Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Würzburg, Germany
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Würzburg, Germany
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4
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Ding L, Wang H, Zhang W, Li J, Liu D, Han F, Chen S, Li B. Calcium phosphate bone cement with enhanced physicochemical properties via in situ formation of an interpenetrating network. J Mater Chem B 2021; 9:6802-6810. [PMID: 34346474 DOI: 10.1039/d1tb00867f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Calcium phosphate cement (CPC), which exhibits excellent biocompatibility and bioactivity, is a well-established material for the repair of bone defects. However, its disadvantages such as poor washout resistance and low mechanical strength limit its clinical applications. In this study, CPC with enhanced washout resistance and mechanical properties has been developed by the in situ crosslinking of glycidyl methacrylate modified γ-polyglutamic acid (m-PGA) within the cement matrix, forming an interpenetrating network. Compared with unmodified CPC, the final setting time of the composite cements was shortened and its washout resistance was significantly improved. In addition, the composite cements showed enhanced mechanical strength and degradation properties. An in vitro study demonstrated that the composite cements exhibited good biocompatibility. The in vivo results showed that the composite cements promoted bone formation. These results suggest that the biocompatible, injectable α-tricalcium phosphate (α-TCP)/m-PGA cements may have the potential to be used as bone filling materials for future clinical applications.
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Affiliation(s)
- Luguang Ding
- College of Chemistry, Chemical Engineering and Materials Science, Department of Orthopaedic Surgery, Orthopaedic Institute, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, China.
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5
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Morilla C, Perdomo E, Hernández AK, Regalado R, Almirall A, Fuentes G, Campos Mora Y, Schomann T, Chan A, Cruz LJ. Effect of the Addition of Alginate and/or Tetracycline on Brushite Cement Properties. Molecules 2021; 26:molecules26113272. [PMID: 34071673 PMCID: PMC8199332 DOI: 10.3390/molecules26113272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/29/2022] Open
Abstract
Calcium phosphate cements have the advantage that they can be prepared as a paste that sets in a few minutes and can be easily adapted to the shape of the bone defect, which facilitates its clinical application. In this research, six formulations of brushite (dicalcium phosphate dihydrated) cement were obtained and the effect of the addition of sodium alginate was analyzed, such as its capacity as a tetracycline release system. The samples that contain sodium alginate set in 4 or 5 min and showed a high percentage of injectability (93%). The cements exhibit compression resistance values between 1.6 and 2.6 MPa. The drug was released in a range between 12.6 and 13.2% after 7 days. The antimicrobial activity of all the cements containing antibiotics was proven. All samples reached values of cell viability above 70 percent. We also observed that the addition of the sodium alginate and tetracycline improved the cell viability.
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Affiliation(s)
- Claudia Morilla
- Biomaterials Center, University of Havana, La Habana 10400, Cuba; (C.M.); (A.K.H.); (R.R.); (A.A.); (Y.C.M.)
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (T.S.); (L.J.C.)
- Percuros B.V., 2333 CL Leiden, The Netherlands;
| | - Elianis Perdomo
- Faculty of Automatic and Biomedical Engineering, Technological University of Havana, La Habana 11300, Cuba;
| | - Ana Karla Hernández
- Biomaterials Center, University of Havana, La Habana 10400, Cuba; (C.M.); (A.K.H.); (R.R.); (A.A.); (Y.C.M.)
| | - Ramcy Regalado
- Biomaterials Center, University of Havana, La Habana 10400, Cuba; (C.M.); (A.K.H.); (R.R.); (A.A.); (Y.C.M.)
| | - Amisel Almirall
- Biomaterials Center, University of Havana, La Habana 10400, Cuba; (C.M.); (A.K.H.); (R.R.); (A.A.); (Y.C.M.)
| | - Gastón Fuentes
- Biomaterials Center, University of Havana, La Habana 10400, Cuba; (C.M.); (A.K.H.); (R.R.); (A.A.); (Y.C.M.)
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (T.S.); (L.J.C.)
- Correspondence: or
| | - Yaima Campos Mora
- Biomaterials Center, University of Havana, La Habana 10400, Cuba; (C.M.); (A.K.H.); (R.R.); (A.A.); (Y.C.M.)
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (T.S.); (L.J.C.)
| | - Timo Schomann
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (T.S.); (L.J.C.)
- Percuros B.V., 2333 CL Leiden, The Netherlands;
| | - Alan Chan
- Percuros B.V., 2333 CL Leiden, The Netherlands;
| | - Luis J. Cruz
- Translational Nanobiomaterials and Imaging Group, Department of Radiology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands; (T.S.); (L.J.C.)
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Schröter L, Kaiser F, Stein S, Gbureck U, Ignatius A. Biological and mechanical performance and degradation characteristics of calcium phosphate cements in large animals and humans. Acta Biomater 2020; 117:1-20. [PMID: 32979583 DOI: 10.1016/j.actbio.2020.09.031] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/21/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022]
Abstract
Calcium phosphate cements (CPCs) have been used to treat bone defects and support bone regeneration because of their good biocompatibility and osteointegrative behavior. Since their introduction in the 1980s, remarkable clinical success has been achieved with these biomaterials, because they offer the unique feature of being moldable and even injectable into implant sites, where they harden through a low-temperature setting reaction. However, despite decades of research efforts, two major limitations concerning their biological and mechanical performance hamper a broader clinical use. Firstly, achieving a degradation rate that is well adjusted to the dynamics of bone formation remains a challenging issue. While apatite-forming CPCs frequently remain for years at the implant site without major signs of degradation, brushite-forming CPCs are considered to degrade to a greater extent. However, the latter tend to convert into lower soluble phases under physiological conditions, which makes their degradation behavior rather unpredictable. Secondly, CPCs exhibit insufficient mechanical properties for load bearing applications because of their inherent brittleness. This review places an emphasis on these limitations and provides an overview of studies that have investigated the biological and biomechanical performance as well as the degradation characteristics of different CPCs after implantation into trabecular bone. We reviewed studies performed in large animals, because they mimic human bone physiology more closely in terms of bone metabolism and mechanical loading conditions compared with small laboratory animals. We compared the results of these studies with clinical trials that have dealt with the degradation behavior of CPCs after vertebroplasty and kyphoplasty.
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Affiliation(s)
- Lena Schröter
- Institute for Orthopedic Research and Biomechanics, Ulm University Medical Center, Helmholtzstrasse 14, D-89081 Ulm, Germany
| | - Friederike Kaiser
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, D-97070 Würzburg, Germany
| | - Svenja Stein
- Institute for Orthopedic Research and Biomechanics, Ulm University Medical Center, Helmholtzstrasse 14, D-89081 Ulm, Germany
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, D-97070 Würzburg, Germany.
| | - Anita Ignatius
- Institute for Orthopedic Research and Biomechanics, Ulm University Medical Center, Helmholtzstrasse 14, D-89081 Ulm, Germany
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Zhao Y, Cui Z, Liu B, Xiang J, Qiu D, Tian Y, Qu X, Yang Z. An Injectable Strong Hydrogel for Bone Reconstruction. Adv Healthc Mater 2019; 8:e1900709. [PMID: 31353829 DOI: 10.1002/adhm.201900709] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/02/2019] [Indexed: 12/22/2022]
Abstract
For treating bone defects in periarticular fractures, there is a lack of biomaterial with injectable characteristics, tough structure, and osteogenic capacity for providing a whole-structure support and osteogenesis in the defect area. An injectable hydrogel is an ideal implant, however is weak as load-bearing scaffolds. Herein, a new strategy, i.e., an in situ formation of "active" composite double network (DN), is raised for the preparation of an injectable strong hydrogel particularly against compression. As a demonstration, 4-carboxyphenylboronic acid grafted poly(vinyl alcohol) (PVA) is crosslinked using calcium ions to provide a tough frame while bioactive glass (BG) microspheres are associated by poly(ethylene glycol) to obtain an interpenetrated inorganic network for reinforcement. The injected PVA/BG DN hydrogel gains compressive strength, modulus, and fracture energy of 34 MPa, 0.8 MPa, and 40 kJ m-2 , respectively. Then, the properties can be "autostrengthened" to 57 MPa, 2 MPa, and 65 kJ m-2 by mineralization in 14 days. In vivo experiments prove that the injected DN hydrogel is more efficient to treat femoral supracondylar bone defects than the implanted bulk DN gel. The work suggests a facile way to obtain a strong hydrogel with injectability, cytocompatibility, and tailorable functionality.
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Affiliation(s)
- Yanran Zhao
- Center of Materials Science and Optoelectronics EngineeringCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Zhiyong Cui
- Peking University Third Hospital Beijing 100191 China
| | - Bingchuan Liu
- Peking University Third Hospital Beijing 100191 China
| | - Junfeng Xiang
- Center of Materials Science and Optoelectronics EngineeringCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
- State Key Laboratory of Polymer Physics and ChemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Dong Qiu
- State Key Laboratory of Polymer Physics and ChemistryInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Yun Tian
- Peking University Third Hospital Beijing 100191 China
| | - Xiaozhong Qu
- Center of Materials Science and Optoelectronics EngineeringCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of Sciences Beijing 100049 China
| | - Zhenzhong Yang
- Department of Chemical EngineeringTsinghua University Beijing 100084 China
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8
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Petre DG, Nadar R, Tu Y, Paknahad A, Wilson DA, Leeuwenburgh SCG. Thermoresponsive Brushes Facilitate Effective Reinforcement of Calcium Phosphate Cements. ACS APPLIED MATERIALS & INTERFACES 2019; 11:26690-26703. [PMID: 31246399 PMCID: PMC6676411 DOI: 10.1021/acsami.9b08311] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 06/27/2019] [Indexed: 05/04/2023]
Abstract
Calcium phosphate ceramics are frequently applied to stimulate regeneration of bone in view of their excellent biological compatibility with bone tissue. Unfortunately, these bioceramics are also highly brittle. To improve their toughness, fibers can be incorporated as the reinforcing component for the calcium phosphate cements. Herein, we functionalize the surface of poly(vinyl alcohol) fibers with thermoresponsive poly(N-isopropylacrylamide) brushes of tunable thickness to improve simultaneously fiber dispersion and fiber-matrix affinity. These brushes shift from hydrophilic to hydrophobic behavior at temperatures above their lower critical solution temperature of 32 °C. This dual thermoresponsive shift favors fiber dispersion throughout the hydrophilic calcium phosphate cements (at 21 °C) and toughens these cements when reaching their hydrophobic state (at 37 °C). The reinforcement efficacy of these surface-modified fibers was almost double at 37 versus 21 °C, which confirms the strong potential of thermoresponsive fibers for reinforcement of calcium phosphate cements.
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Affiliation(s)
- Daniela-Geta Petre
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
| | - Robin Nadar
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
| | - Yingfeng Tu
- Department
of Systems Chemistry, Radboud University, 6525 AJ Nijmegen, The Netherlands
- School
of Pharmaceutical Science, Guangdong Provincial Key Laboratory of
New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Ali Paknahad
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
- Department
of Computational Mechanics, Faculty of Civil Engineering and Geosciences, Delft University of Technology, 2628 CN Delft, The Netherlands
| | - Daniela A. Wilson
- Department
of Systems Chemistry, Radboud University, 6525 AJ Nijmegen, The Netherlands
- School
of Pharmaceutical Science, Guangdong Provincial Key Laboratory of
New Drug Screening, Southern Medical University, Guangzhou 510515, China
| | - Sander C. G. Leeuwenburgh
- Department
of Regenerative Biomaterials, Radboud University
Medical Center, 6525 EX Nijmegen, The Netherlands
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Li H, Dai J, Xu Q, Lu C, Yang G, Wang F, Nie J, Hu X, Dong N, Shi J. Synthesis of thiol-terminated PEG-functionalized POSS cross-linkers and fabrication of high-strength and hydrolytic degradable hybrid hydrogels in aqueous phase. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.03.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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10
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Rödel M, Teßmar J, Groll J, Gbureck U. Tough and Elastic α-Tricalcium Phosphate Cement Composites with Degradable PEG-Based Cross-Linker. MATERIALS (BASEL, SWITZERLAND) 2018; 12:E53. [PMID: 30586905 PMCID: PMC6337656 DOI: 10.3390/ma12010053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/19/2018] [Accepted: 12/21/2018] [Indexed: 11/16/2022]
Abstract
Dual setting cements composed of an in situ forming hydrogel and a reactive mineral phase combine high compressive strength of the cement with sufficient ductility and bending strength of the polymeric network. Previous studies were focused on the modification with non-degradable hydrogels based on 2-hydroxyethyl methacrylate (HEMA). Here, we describe the synthesis of suitable triblock degradable poly(ethylene glycol)-poly(lactide) (PEG-PLLA) cross-linker to improve the resorption capacity of such composites. A study with four different formulations was established. As reference, pure hydroxyapatite (HA) cements and composites with 40 wt% HEMA in the liquid cement phase were produced. Furthermore, HEMA was modified with 10 wt% of PEG-PLLA cross-linker or a test series containing only 25% cross-linker was chosen for composites with a fully degradable polymeric phase. Hence, we developed suitable systems with increased elasticity and 5⁻6 times higher toughness values in comparison to pure inorganic cement matrix. Furthermore, conversion rate from α-tricalcium phosphate (α-TCP) to HA was still about 90% for all composite formulations, whereas crystal size decreased. Based on this material development and advancement for a dual setting system, we managed to overcome the drawback of brittleness for pure calcium phosphate cements.
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Affiliation(s)
- Michaela Rödel
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Jörg Teßmar
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University Hospital of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
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