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Chaudhari VS, Kushram P, Bose S. Drug delivery strategies through 3D-printed calcium phosphate. Trends Biotechnol 2024:S0167-7799(24)00145-8. [PMID: 38955569 DOI: 10.1016/j.tibtech.2024.05.006] [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: 02/02/2024] [Revised: 05/17/2024] [Accepted: 05/28/2024] [Indexed: 07/04/2024]
Abstract
3D printing has revolutionized bone tissue engineering (BTE) by enabling the fabrication of patient- or defect-specific scaffolds to enhance bone regeneration. The superior biocompatibility, customizable bioactivity, and biodegradability have enabled calcium phosphate (CaP) to gain significance as a bone graft material. 3D-printed (3DP) CaP scaffolds allow precise drug delivery due to their porous structure, adaptable structure-property relationship, dynamic chemistry, and controlled dissolution. The effectiveness of conventional scaffold-based drug delivery is hampered by initial burst release and drug loss. This review summarizes different multifunctional drug delivery approaches explored in controlling drug release, including polymer coatings, formulation integration, microporous scaffold design, chemical crosslinking, and direct extrusion printing for BTE applications. The review also outlines perspectives and future challenges in drug delivery research, paving the way for next-generation bone repair methodologies.
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Affiliation(s)
- Vishal S Chaudhari
- W.M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| | - Priya Kushram
- W.M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA
| | - Susmita Bose
- W.M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA.
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2
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Li TT, Wang S, Li J, Zhang Y, Liu X, Liu L, Peng HK, Ren HT, Ling L, Lin JH, Lou CW. Braided scaffolds with polypyrrole/polydopamine/hydroxyapatite coatings with electrical conductivity and osteogenic properties for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023; 34:2498-2515. [PMID: 37795599 DOI: 10.1080/09205063.2023.2265134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/28/2023] [Indexed: 10/06/2023]
Abstract
When impaired bones are grafted with bone scaffolds, the behaviors of osteoblast are dependent on the implant materials and surface morphology. To this end, we modulated the surface morphology of scaffolds that promote cell growth. In this study, ice-template and spraying method methods are employed to coat different proportions of PDA and PPy over the PLA/PVA weaving scaffolds, after which HA is Coated over via the electrochemical deposition, forming weaving scaffolds with electrically conductive PDA/PPy/HA coating. The test results indicate that with a PPy/PDA concentration ratio is 30, the PPy particles are more uniformly distributed on the fiber surface. The scaffolds are wrapped in a HA coating layer with a high purity, and calcium and phosphorus elements are evenly dispersed with a Ca/P ratio being 1.69. Owing to the synergistic effect between PDA and PPy coating, the scaffolds demonstrate excellent electrochemical stability and electrochemical activity. The biological activity of the scaffold increased to 274.66% under electrical stimulation. The new thinking proposed by this study extends the worth of applying textile structure to the medical field, the application of which highly increases the prospect of bone tissue engineering.
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Affiliation(s)
- Ting-Ting Li
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
| | - Shiqi Wang
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Jiaxin Li
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Ying Zhang
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Xing Liu
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Liyan Liu
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
| | - Hao-Kai Peng
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
| | - Hai-Tao Ren
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
| | - Lei Ling
- Key Laboratory for Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin University, Tianjin, China
| | - Jia-Horng Lin
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
- College of Material and Chemical Engineering, Minjiang University, Fuzhou, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan
- Department of Medical Research, China Medical University Hospital China Medica University, Taichung City, Taiwan
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, China
- Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City, Taiwan
- School of Chinese Medicine, China Medical University, Taichung City, Taiwan
| | - Ching-Wen Lou
- School of Textile Science and Engineering, Tiangong University, Tianjin, China
- Tianjin and Education Ministry Key Laboratory of Advanced Textile Composite Materials, Tiangong University, Tianjin, China
- College of Material and Chemical Engineering, Minjiang University, Fuzhou, China
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, Taiwan
- Department of Medical Research, China Medical University Hospital China Medica University, Taichung City, Taiwan
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, China
- Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City, Taiwan
- School of Chinese Medicine, China Medical University, Taichung City, Taiwan
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3
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Gupta T, Ghosh SB, Bandyopadhyay-Ghosh S, Sain M. Is it possible to 3D bioprint load-bearing bone implants? A critical review. Biofabrication 2023; 15:042003. [PMID: 37669643 DOI: 10.1088/1758-5090/acf6e1] [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] [Received: 04/15/2023] [Accepted: 09/05/2023] [Indexed: 09/07/2023]
Abstract
Rehabilitative capabilities of any tissue engineered scaffold rely primarily on the triad of (i) biomechanical properties such as mechanical properties and architecture, (ii) chemical behavior such as regulation of cytokine expression, and (iii) cellular response modulation (including their recruitment and differentiation). The closer the implant can mimic the native tissue, the better it can rehabilitate the damage therein. Among the available fabrication techniques, only 3D bioprinting (3DBP) can satisfactorily replicate the inherent heterogeneity of the host tissue. However, 3DBP scaffolds typically suffer from poor mechanical properties, thereby, driving the increased research interest in development of load-bearing 3DBP orthopedic scaffolds in recent years. Typically, these scaffolds involve multi-material 3D printing, comprising of at-least one bioink and a load-bearing ink; such that mechanical and biological requirements of the biomaterials are decoupled. Ensuring high cellular survivability and good mechanical properties are of key concerns in all these studies. 3DBP of such scaffolds is in early developmental stages, and research data from only a handful of preliminary animal studies are available, owing to limitations in print-capabilities and restrictive materials library. This article presents a topically focused review of the state-of-the-art, while highlighting aspects like available 3DBP techniques; biomaterials' printability; mechanical and degradation behavior; and their overall bone-tissue rehabilitative efficacy. This collection amalgamates and critically analyses the research aimed at 3DBP of load-bearing scaffolds for fulfilling demands of personalized-medicine. We highlight the recent-advances in 3DBP techniques employing thermoplastics and phosphate-cements for load-bearing applications. Finally, we provide an outlook for possible future perspectives of 3DBP for load-bearing orthopedic applications. Overall, the article creates ample foundation for future research, as it gathers the latest and ongoing research that scientists could utilize.
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Affiliation(s)
- Tanmay Gupta
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
| | - Subrata Bandhu Ghosh
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Sanchita Bandyopadhyay-Ghosh
- Engineered Biomedical Materials Research and Innovation Centre (EnBioMatRIC), Department of Mechanical Engineering, Manipal University Jaipur, Jaipur, Rajasthan, India
| | - Mohini Sain
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON, Canada
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Gelli R, Ridi F. An Overview of Magnesium-Phosphate-Based Cements as Bone Repair Materials. J Funct Biomater 2023; 14:424. [PMID: 37623668 PMCID: PMC10455751 DOI: 10.3390/jfb14080424] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 08/26/2023] Open
Abstract
In the search for effective biomaterials for bone repair, magnesium phosphate cements (MPCs) are nowadays gaining importance as bone void fillers thanks to their many attractive features that overcome some of the limitations of the well-investigated calcium-phosphate-based cements. The goal of this review was to highlight the main properties and applications of MPCs in the orthopedic field, focusing on the different types of formulations that have been described in the literature, their main features, and the in vivo and in vitro response towards them. The presented results will be useful to showcase the potential of MPCs in the orthopedic field and will suggest novel strategies to further boost their clinical application.
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Affiliation(s)
| | - Francesca Ridi
- Department of Chemistry “Ugo Schiff” and CSGI Consortium, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy;
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Additive Manufacturing of Polymer/Mg-Based Composites for Porous Tissue Scaffolds. Polymers (Basel) 2022; 14:polym14245460. [PMID: 36559829 PMCID: PMC9783552 DOI: 10.3390/polym14245460] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/29/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
Due to their commercial availability, superior processability, and biocompatibility, polymers are frequently used to build three-dimensional (3D) porous scaffolds. The main issues limiting the widespread clinical use of monophasic polymer scaffolds in the bone healing process are their inadequate mechanical strength and inappropriate biodegradation. Due to their mechanical strength and biocompatibility, metal-based scaffolds have been used for various bone regenerative applications. However, due to the mismatch in mechanical properties and nondegradability, they lack integration with the host tissues, resulting in the production of fiber tissue and the release of toxic ions, posing a risk to the durability of scaffolds. Due to their natural degradability in the body, Mg and its alloys increasingly attract attention for orthopedic and cardiovascular applications. Incorporating Mg micro-nano-scale particles into biodegradable polymers dramatically improves scaffolds and implants' strength, biocompatibility, and biodegradability. Polymer biodegradable implants also improve the quality of life, particularly for an aging society, by eliminating the secondary surgery often needed to remove permanent implants and significantly reducing healthcare costs. This paper reviews the suitability of various biodegradable polymer/Mg composites for bone tissue scaffolds and then summarizes the current status and challenges of polymer/magnesium composite scaffolds. In addition, this paper reviews the potential use of 3D printing, which has a unique design capability for developing complex structures with fewer material waste at a faster rate, and with a personalized and on-site fabrication possibility.
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BOSE SUSMITA, BHATTACHARJEE ARJAK, HUYNH CHRISTINE, BANERJEE DISHARY. Allicin-Loaded Hydroxyapatite: Enhanced Release, Cytocompatibility, and Antibacterial Properties for Bone Tissue Engineering Applications. JOM (WARRENDALE, PA. : 1989) 2022; 74:3349-3356. [PMID: 36568491 PMCID: PMC9770096 DOI: 10.1007/s11837-022-05366-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/23/2022] [Indexed: 06/17/2023]
Abstract
Allicin, the active compound of garlic extract, is a naturally sourced biomolecule, which promotes a vast range of health benefits. However, the limited stability of allicin restricts its applications in tissue engineering. Additionally, the detailed effects of allicin in bone health are yet to be explored. Our work reports on the fabrication of a novel allicin-loaded hydroxyapatite drug delivery system with enhanced biological properties. The fabricated system shows excellent antibacterial efficiency against S. aureus after 36 h of bacterial interaction with a sample. The allicin release kinetics are enhanced with polycaprolactone (PCL). The obtained results after 20 days of drug release study indicate that PCL coating leads to an increase in cumulative allicin release from ~ 35% to 70% at a physiological pH of 7.4. These scaffolds maintain stability during the whole period of drug release. Cytocompatibility of tested compositions with osteoblasts indicates enhanced cell viability and good filopodial attachment on the sample surface at day 7. These allicin-loaded antibacterial and cytocompatible scaffolds can find applications as localized delivery vehicles for bone tissue engineering.
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Affiliation(s)
- SUSMITA BOSE
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
| | - ARJAK BHATTACHARJEE
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
| | - CHRISTINE HUYNH
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
| | - DISHARY BANERJEE
- W. M. Keck Biomedical Materials Research Laboratory, Washington State University, Pullman, WA 99164, USA
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Bavya Devi K, Lalzawmliana V, Saidivya M, Kumar V, Roy M, Kumar Nandi S. Magnesium Phosphate Bioceramics for Bone Tissue Engineering. CHEM REC 2022; 22:e202200136. [PMID: 35866502 DOI: 10.1002/tcr.202200136] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 07/01/2022] [Indexed: 11/11/2022]
Abstract
Magnesium phosphate (MgP) is a family of newly developed resorbable bioceramics for bone tissue engineering. Although calcium phosphates (CaP) are the most commonly used bioceramics, low solubility, and slow degradation, when implanted in vivo, are their main drawbacks. Magnesium (Mg) is an essential element in the human body as it plays important role in bone metabolism, DNA stabilization, and skeletal development. Recent research on magnesium phosphates has established their higher degradability, in vitro, and in vivo biocompatibility. Compared to CaP, very limited research work has been found in the area of MgP. The prime goal of this review is to bring out the importance of magnesium phosphate ceramics for biomedical applications. In this review, we have discussed the synthesis methods, mechanical properties, in vitro and in vivo biocompatibility of MgP bioceramics. Moreover, we have highlighted the recent developments in metal ion-doped MgPs and MgP scaffolds for bone tissue engineering.
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Affiliation(s)
- K Bavya Devi
- Department of Chemistry, Thassim Beevi Abdul Kader College for Women, 623517, Kilakarai, Ramanathapuram, India
| | - V Lalzawmliana
- Department of Veterinary Surgery and Radiology, College of Veterinary Sciences and Animal Husbandry, 799008, R. K. Nagar, Tripura West, India
| | - Maktumkari Saidivya
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology-Kharagpur, 721302, Kharagpur, India
| | - Vinod Kumar
- Department of Veterinary Clinical Complex, Faculty of Veterinary & Animal Sciences, Banaras Hindu University, pin-221005, Mirzapur, India
| | - Mangal Roy
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology-Kharagpur, 721302, Kharagpur, India
| | - Samit Kumar Nandi
- Department of Veterinary Surgery and Radiology, West Bengal University of Animal and Fishery Sciences, 700037, Kolkata, India
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Fractal Analysis on Pore Structure and Modeling of Hydration of Magnesium Phosphate Cement Paste. FRACTAL AND FRACTIONAL 2022. [DOI: 10.3390/fractalfract6060337] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Magnesium phosphate cement (MPC) paste is hardened by the acid–base reaction between magnesium oxide and phosphate. This work collects and evaluates the thermodynamic data at 25 °C and a pressure of 0.1 MPa and establishes the hydration reaction model of MPC pastes. The influence of the magnesium–phosphorus molar (M/P) ratio and water-to-binder (W/B) ratio on the hydration product is explored by the thermodynamic simulation. Following this, the initial and ultimate states of the hydration state of MPC pastes are visualized, and the porosity of different pastes as well as fractal analysis are presented. The result shows that a small M/P ratio is beneficial for the formation of main hydration products. The boric acid acts as a retarder, has a significant effect on lowering the pH of the paste, and slows down the formation of hydration products. After the porosity comparison, it can be concluded that the decreasing of M/P and W/B ratios helps reduce porosity. In addition, the fractal dimension Df of MPC pastes is positively proportional to the porosity, and small M/P ratios as well as small W/B ratios are beneficial for reducing the Df of MKPC pastes.
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Özcan M, Magini EB, Volpato GM, Cruz A, Volpato CAM. Additive Manufacturing Technologies for Fabrication of Biomaterials for Surgical Procedures in Dentistry: A Narrative Review. J Prosthodont 2022; 31:105-135. [PMID: 35313027 DOI: 10.1111/jopr.13484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2022] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To screen and critically appraise available literature regarding additive manufacturing technologies for bone graft material fabrication in dentistry. MATERIAL AND METHODS PubMed and Scopus were searched up to May 2021. Studies reporting the additive manufacturing techniques to manufacture scaffolds for intraoral bone defect reconstruction were considered eligible. A narrative review was synthesized to discuss the techniques for bone graft material fabrication in dentistry and the biomaterials used. RESULTS The databases search resulted in 933 articles. After removing duplicate articles (128 articles), the titles and abstracts of the remaining articles (805 articles) were evaluated. A total of 89 articles were included in this review. Reading these articles, 5 categories of additive manufacturing techniques were identified: material jetting, powder bed fusion, vat photopolymerization, binder jetting, and material extrusion. CONCLUSIONS Additive manufacturing technologies for bone graft material fabrication in dentistry, especially 3D bioprinting approaches, have been successfully used to fabricate bone graft material with distinct compositions.
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Affiliation(s)
- Mutlu Özcan
- Division of Dental Biomaterials, Center of Dental Medicine, Clinic for Reconstructive Dentistry, University of Zürich, Zürich, Switzerland
| | - Eduarda Blasi Magini
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Ariadne Cruz
- Department of Dentistry, Federal University of Santa Catarina, Florianópolis, Brazil
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Gu X, Li Y, Qi C, Cai K. Biodegradable magnesium phosphates in biomedical applications. J Mater Chem B 2022; 10:2097-2112. [DOI: 10.1039/d1tb02836g] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As an essential element, magnesium is involved in a variety of physiological processes. Magnesium is the second most abundant cation in cells and the fourth most abundant cation in living...
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Zhang R, Zhong S, Zeng L, Li H, Zhao R, Zhang S, Duan X, Huang J, Zhao Y. Novel Mg-Incorporated Micro-Arc Oxidation Coatings for Orthopedic Implants Application. MATERIALS 2021; 14:ma14195710. [PMID: 34640102 PMCID: PMC8510346 DOI: 10.3390/ma14195710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Revised: 09/24/2021] [Accepted: 09/26/2021] [Indexed: 12/29/2022]
Abstract
In this study, Ti-6Al-4V alloy samples were processed by micro-arc oxidation (MAO) in phytic acid (H12Phy) electrolytes with the addition of different concentrations of EDTA-MgNa2 (Na2MgY) and potassium hydroxide (KOH). The surface characterization and cytocompatibility of MAO-treated samples were evaluated systematically. H12Phy is a necessary agent for MAO coating formation, and the addition of Na2MgY and KOH into the electrolytes increases the surface roughness, micropore size and Mg contents in the coatings. The MAO coatings are primarily composed of anatase, rutile, MgO and Mg3(PO4)2. Magnesium (Mg) ions in the electrolytes enter into MAO coatings by diffusion and electromigration. The MAO coatings containing 2.97 at% Mg show excellent cell viability, adhesion, proliferation, alkaline phosphatase activity, extracellular matrix (ECM) mineralization and collagen secretion, but the cytocompatibility of the MAO coatings containing 6.82 at% Mg was the worst due to the excessively high Mg content. Our results revealed that MAO coatings with proper Mg contents improve the cytocompatibility of the Ti-6Al-4V alloys and have large potential in orthopedic applications.
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Affiliation(s)
- Rongfa Zhang
- School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330038, China; (S.Z.); (R.Z.); (S.Z.); (X.D.); (J.H.)
- Correspondence: (R.Z.); (Y.Z.)
| | - Sheng Zhong
- School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330038, China; (S.Z.); (R.Z.); (S.Z.); (X.D.); (J.H.)
| | - Lilan Zeng
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (L.Z.); (H.L.)
| | - Hongyu Li
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (L.Z.); (H.L.)
| | - Rongfang Zhao
- School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330038, China; (S.Z.); (R.Z.); (S.Z.); (X.D.); (J.H.)
| | - Shufang Zhang
- School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330038, China; (S.Z.); (R.Z.); (S.Z.); (X.D.); (J.H.)
| | - Xinting Duan
- School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330038, China; (S.Z.); (R.Z.); (S.Z.); (X.D.); (J.H.)
| | - Jingsong Huang
- School of Materials and Electromechanics, Jiangxi Science and Technology Normal University, Nanchang 330038, China; (S.Z.); (R.Z.); (S.Z.); (X.D.); (J.H.)
| | - Ying Zhao
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China; (L.Z.); (H.L.)
- Correspondence: (R.Z.); (Y.Z.)
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3D-printed Mg-incorporated PCL-based scaffolds: A promising approach for bone healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 129:112372. [PMID: 34579891 DOI: 10.1016/j.msec.2021.112372] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 07/29/2021] [Accepted: 08/09/2021] [Indexed: 11/24/2022]
Abstract
3D-printed scaffolds have been developed as potential therapeutic strategies in bone tissue engineering. Mg/PCL biomaterials have been attracted much attention owing to biocompatibility, biodegradability as well as tunable mechanical properties. In this work, we developed 3D-printed customized Mg/PCL composite scaffolds with enhanced osteogenesis and biomineralization. Mg microparticles embedded in PCL-based scaffolds took a positive role in the improvement of biocompatibility, biomineralization, and biodegradable abilities. When incorporated with 3 wt% Mg, PCL-based scaffolds exhibited the optimal bone repairing ability in vitro and in vivo. The in vitro experiments indicated that 3 Mg/PCL scaffolds had improved mechanical properties, good biocompatibility, enhanced osteogenic and angiogenic activities. Besides, the in vivo studies demonstrated that Mg/PCL scaffolds promoted tissue ingrowth and new bone formation. In sum, these findings indicated that 3D-printed cell-free Mg/PCL scaffolds are promising strategies for bone healing application.
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Götz LM, Holeczek K, Groll J, Jüngst T, Gbureck U. Extrusion-Based 3D Printing of Calcium Magnesium Phosphate Cement Pastes for Degradable Bone Implants. MATERIALS 2021; 14:ma14185197. [PMID: 34576421 PMCID: PMC8472049 DOI: 10.3390/ma14185197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 01/07/2023]
Abstract
This study aimed to develop printable calcium magnesium phosphate pastes that harden by immersion in ammonium phosphate solution post-printing. Besides the main mineral compound, biocompatible ceramic, magnesium oxide and hydroxypropylmethylcellulose (HPMC) were the crucial components. Two pastes with different powder to liquid ratios of 1.35 g/mL and 1.93 g/mL were characterized regarding their rheological properties. Here, ageing over the course of 24 h showed an increase in viscosity and extrusion force, which was attributed to structural changes in HPMC as well as the formation of magnesium hydroxide by hydration of MgO. The pastes enabled printing of porous scaffolds with good dimensional stability and enabled a setting reaction to struvite when immersed in ammonium phosphate solution. Mechanical performance under compression was approx. 8-20 MPa as a monolithic structure and 1.6-3.0 MPa for printed macroporous scaffolds, depending on parameters such as powder to liquid ratio, ageing time, strand thickness and distance.
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Affiliation(s)
| | | | | | - Tomasz Jüngst
- Correspondence: (T.J.); (U.G.); Tel.: +49-931-201-73550 (U.G.)
| | - Uwe Gbureck
- Correspondence: (T.J.); (U.G.); Tel.: +49-931-201-73550 (U.G.)
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Aytac Z, Dubey N, Daghrery A, Ferreira JA, de Souza Araújo IJ, Castilho M, Malda J, Bottino MC. Innovations in Craniofacial Bone and Periodontal Tissue Engineering - From Electrospinning to Converged Biofabrication. INTERNATIONAL MATERIALS REVIEWS 2021; 67:347-384. [PMID: 35754978 PMCID: PMC9216197 DOI: 10.1080/09506608.2021.1946236] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 06/11/2021] [Indexed: 06/02/2023]
Abstract
From a materials perspective, the pillars for the development of clinically translatable scaffold-based strategies for craniomaxillofacial (CMF) bone and periodontal regeneration have included electrospinning and 3D printing (biofabrication) technologies. Here, we offer a detailed analysis of the latest innovations in 3D (bio)printing strategies for CMF bone and periodontal regeneration and provide future directions envisioning the development of advanced 3D architectures for successful clinical translation. First, the principles of electrospinning applied to the generation of biodegradable scaffolds are discussed. Next, we present on extrusion-based 3D printing technologies with a focus on creating scaffolds with improved regenerative capacity. In addition, we offer a critical appraisal on 3D (bio)printing and multitechnology convergence to enable the reconstruction of CMF bones and periodontal tissues. As a future outlook, we highlight future directions associated with the utilization of complementary biomaterials and (bio)fabrication technologies for effective translation of personalized and functional scaffolds into the clinics.
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Affiliation(s)
- Zeynep Aytac
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
| | - Nileshkumar Dubey
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
| | - Arwa Daghrery
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
| | - Jessica A. Ferreira
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
| | - Isaac J. de Souza Araújo
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
| | - Miguel Castilho
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Jos Malda
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
- Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan, United States
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Telang VS, Pemmada R, Thomas V, Ramakrishna S, Tandon P, Nanda HS. Harnessing additive manufacturing for magnesium-based metallic bioimplants: Recent advances and future perspectives. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2021. [DOI: 10.1016/j.cobme.2021.100264] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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16
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Chen Y, Li W, Zhang C, Wu Z, Liu J. Recent Developments of Biomaterials for Additive Manufacturing of Bone Scaffolds. Adv Healthc Mater 2020; 9:e2000724. [PMID: 32743960 DOI: 10.1002/adhm.202000724] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/09/2020] [Indexed: 12/11/2022]
Abstract
Recent years have witnessed surging demand for bone repair/regeneration implants due to the increasing number of bone defects caused by trauma, cancer, infection, and arthritis worldwide. In addition to bone autografts and allografts, biomaterial substitutes have been widely used in clinical practice. Personalized implants with precise and personalized control of shape, porosity, composition, surface chemistry, and mechanical properties will greatly facilitate the regeneration of bone tissue and satiate the clinical needs. Additive manufacturing (AM) techniques, also known as 3D printing, are drawing fast growing attention in the fabrication of implants or scaffolding materials due to their capability of manufacturing complex and irregularly shaped scaffolds in repairing bone defects in clinical practice. This review aims to provide a comprehensive overview of recent progress in the development of materials and techniques used in the additive manufacturing of bone scaffolds. In addition, clinical application, pre-clinical trials and future prospects of AM based bone implants are also summarized and discussed.
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Affiliation(s)
- You Chen
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Weilin Li
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Chao Zhang
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Zhaoying Wu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
| | - Jie Liu
- School of Biomedical Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510006, China
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Abstract
Abstract
Carbon nanotubes (CNTs), with unique graphitic structure, superior mechanical, electrical, optical and biological properties, has attracted more and more interests in biomedical applications, including gene/drug delivery, bioimaging, biosensor and tissue engineering. In this review, we focus on the role of CNTs and their polymeric composites in tissue engineering applications, with emphasis on their usages in the nerve, cardiac and bone tissue regenerations. The intrinsic natures of CNTs including their physical and chemical properties are first introduced, explaining the structure effects on CNTs electrical conductivity and various functionalization of CNTs to improve their hydrophobic characteristics. Biosafety issues of CNTs are also discussed in detail including the potential reasons to induce the toxicity and their potential strategies to minimise the toxicity effects. Several processing strategies including solution-based processing, polymerization, melt-based processing and grafting methods are presented to show the 2D/3D construct formations using the polymeric composite containing CNTs. For the sake of improving mechanical, electrical and biological properties and minimising the potential toxicity effects, recent advances using polymer/CNT composite the tissue engineering applications are displayed and they are mainly used in the neural tissue (to improve electrical conductivity and biological properties), cardiac tissue (to improve electrical, elastic properties and biological properties) and bone tissue (to improve mechanical properties and biological properties). Current limitations of CNTs in the tissue engineering are discussed and the corresponded future prospective are also provided. Overall, this review indicates that CNTs are promising “next-generation” materials for future biomedical applications.
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Lim KS, Galarraga JH, Cui X, Lindberg GCJ, Burdick JA, Woodfield TBF. Fundamentals and Applications of Photo-Cross-Linking in Bioprinting. Chem Rev 2020; 120:10662-10694. [DOI: 10.1021/acs.chemrev.9b00812] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Khoon S. Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
| | - Jonathan H. Galarraga
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Xiaolin Cui
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
| | - Gabriella C. J. Lindberg
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Tim B. F. Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
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Abdou NY, Farag MM, Abd-Allah WM. Thermoluminescent properties of nano-magnesium phosphate ceramic for radiation dosimetry. THE EUROPEAN PHYSICAL JOURNAL PLUS 2020; 135:317. [DOI: 10.1140/epjp/s13360-020-00310-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2019] [Accepted: 03/03/2020] [Indexed: 09/02/2023]
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Cao X, Lu H, Liu J, Lu W, Guo L, Ma M, Zhang B, Guo Y. 3D plotting in the preparation of newberyite, struvite, and brushite porous scaffolds: using magnesium oxide as a starting material. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:88. [PMID: 31325082 DOI: 10.1007/s10856-019-6290-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 07/08/2019] [Indexed: 06/10/2023]
Abstract
Calcium phosphate (CaP)-containing materials, such as hydroxyapatite and brushite, are well studied bone grafting materials owing to their similar chemical compositions to the mineral phase of natural bone and kidney calculi. In recent studies, magnesium phosphate (MgP)-containing compounds, such as newberyite and struvite, have shown promise as alternatives to CaP. However, the different ways in degradation and release of Mg2+ and Ca2+ ions in vitro may affect the biocompatibility of CaP and MgP-containing compounds. In the present paper, newberyite, struvite, and brushite 3D porous structures were constructed by 3D-plotting combining with a two-step cementation process, using magnesium oxide (MgO) as a starting material. Briefly, 3D porous green bodies fabricated by 3D-plotting were soaked in (NH4)2HPO4 solution to form semi-manufactured 3D porous structures. These structures were then soaked in different phosphate solutions to translate the structures into newberyite, struvite, and brushite porous scaffolds. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectrometry (EDS) were used to characterize the phases, morphologies, and compositions of the 3D porous scaffolds. The porosity, compressive strength, in vitro degradation and cytotoxicity on MC3T3-E1 osteoblast cells were assessed as well. The results showed that extracts obtained from immersing scaffolds in alpha-modified essential media induced minimal cytotoxicity and the cells could be attached merely onto newberyite and brushite scaffolds. Newberyite and brushite scaffolds produced through our 3D-plotting and two-step cementation process showed the sustained in vitro degradation and excellent biocompatibility, which could be used as scaffolds for the bone tissue engineering.
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Affiliation(s)
- Xiaofeng Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China
| | - Haojun Lu
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Zhejiang, 310018, Hangzhou, PR China
| | - Junli Liu
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China
| | - Weipeng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China
| | - Lin Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China
| | - Ming Ma
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China
| | - Bing Zhang
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China
| | - Yanchuan Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Material, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, 100190, Beijing, PR China.
- Hangzhou Branch of Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Zhejiang, 310018, Hangzhou, PR China.
- University of Chinese Academy of Sciences, 100049, Beijing, PR China.
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21
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Caetano G, Wang W, Murashima A, Passarini JR, Bagne L, Leite M, Hyppolito M, Al-Deyab S, El-Newehy M, Bártolo P, Frade MAC. Tissue Constructs with Human Adipose-Derived Mesenchymal Stem Cells to Treat Bone Defects in Rats. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2268. [PMID: 31311087 PMCID: PMC6679084 DOI: 10.3390/ma12142268] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/11/2019] [Accepted: 07/11/2019] [Indexed: 12/29/2022]
Abstract
The use of porous scaffolds created by additive manufacturing is considered a viable approach for the regeneration of critical-size bone defects. This paper investigates the xenotransplantation of polycaprolactone (PCL) tissue constructs seeded with differentiated and undifferentiated human adipose-derived mesenchymal stem cells (hADSCs) to treat calvarial critical-sized defect in Wistar rats. PCL scaffolds without cells were also considered. In vitro and in vivo biological evaluations were performed to assess the feasibility of these different approaches. In the case of cell seeded scaffolds, it was possible to observe the presence of hADSCs in the rat tissue contributing directly (osteoblasts) and indirectly (stimulation by paracrine factors) to tissue formation, organization and mineralization. The presence of bone morphogenetic protein-2 (BMP-2) in the rat tissue treated with cell-seeded PCL scaffolds suggests that the paracrine factors of undifferentiated hADSC cells could stimulate BMP-2 production by surrounding cells, leading to osteogenesis. Moreover, BMP-2 acts synergistically with growth factors to induce angiogenesis, leading to higher numbers of blood vessels in the groups containing undifferentiated and differentiated hADSCs.
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Affiliation(s)
- Guilherme Caetano
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto 14040-900, SP, Brazil
- Graduate Program in Biomedical Sciences, University Centre of Hermínio Ometto Foundation, Araras 13607339, SP, Brazil
| | - Weiguang Wang
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK
| | - Adriana Murashima
- Department of Ophthalmology, Otolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto 14040-900, SP, Brazil
| | - José Roberto Passarini
- Graduate Program in Biomedical Sciences, University Centre of Hermínio Ometto Foundation, Araras 13607339, SP, Brazil
| | - Leonardo Bagne
- Graduate Program in Biomedical Sciences, University Centre of Hermínio Ometto Foundation, Araras 13607339, SP, Brazil
| | - Marcel Leite
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto 14040-900, SP, Brazil
| | - Miguel Hyppolito
- Department of Ophthalmology, Otolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto 14040-900, SP, Brazil
| | - Salem Al-Deyab
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed El-Newehy
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
- Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Paulo Bártolo
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK
| | - Marco Andrey Cipriani Frade
- Department of Internal Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto 14040-900, SP, Brazil.
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Yu S, Liu L, Xu C, Dai H. Magnesium phosphate based cement with improved setting, strength and cytocompatibility properties by adding Ca(H2PO4)2·H2O and citric acid. J Mech Behav Biomed Mater 2019; 91:229-236. [DOI: 10.1016/j.jmbbm.2018.12.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Revised: 12/06/2018] [Accepted: 12/07/2018] [Indexed: 10/27/2022]
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Tuning the properties of magnesium phosphate-based bone cements: Effect of powder to liquid ratio and aqueous solution concentration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 95:248-255. [DOI: 10.1016/j.msec.2018.10.083] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 09/24/2018] [Accepted: 10/23/2018] [Indexed: 02/07/2023]
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Huo W, Lin X, Lv L, Cao H, Yu S, Yu Z, Zhang Y. Manipulating the degradation behavior and biocompatibility of Mg alloy through a two-step treatment combining sliding friction treatment and micro-arc oxidation. J Mater Chem B 2018; 6:6431-6443. [PMID: 32254651 DOI: 10.1039/c8tb01072b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Manipulating the degradation rate of biomedical Mg alloys has always been a challenge. In this study, a two-step treatment including sliding friction treatment (SFT) and micro-arc oxidation (MAO) was adopted to acquire a unique Mg-based architecture containing three typical layers comprising a MAO coating/nanocrystalline (NC) layer/coarse-grained (CG) matrix. It was found that the modified topmost MAO coating possessed enhanced corrosion resistance, cytocompatibility and hemocompatibility. The intermediate NC layer sandwiched between the coating and CG matrix was an ideal transition layer capable of avoiding degradation rate upsurge caused by coating breakdown; meanwhile, it provided an effective reinforcing effect on the overall mechanical strength. More importantly, the corrosion resistance of these layers was ranked in the order: MAO coating > NC layer > CG matrix. This kind of gradually increasing corrosion rate of the three layers with depth renders the two-step treatment a promising approach to design Mg-based implants possessing controllable degradation rates.
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Affiliation(s)
- Wangtu Huo
- Northwest Institute for Nonferrous Metal Research, Xi'an, Shaanxi Province 710016, China.
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25
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Magnesium-based bioceramics in orthopedic applications. Acta Biomater 2018; 66:23-43. [PMID: 29197578 DOI: 10.1016/j.actbio.2017.11.033] [Citation(s) in RCA: 140] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 11/17/2017] [Accepted: 11/20/2017] [Indexed: 11/22/2022]
Abstract
Magnesium ions are directly involved in numerous biological mechanisms; for example, they play an important part in the regulation of ion channels, DNA stabilization, enzyme activation and stimulation of cell growth and proliferation. This alkaline earth metal has gained great popularity in orthopedic applications in recent years. Magnesium-based bioceramics include a large group of magnesium containing compounds such as oxides, phosphates and silicates, that are involved in orthopedic applications like bone cements, bone scaffolds or implant coatings. This article aims to give a comprehensive review on different magnesium-based bioceramics, e.g. magnesium phosphates (MgO-P2O5), calcium magnesium phosphates (CaO-MgO-P2O5), and magnesium glasses (SiO2-MgO) with a strong focus on the chemistry and properties of magnesium phosphate containing cements as the main application form. In addition, the processing of magnesium phosphate minerals into macroporous scaffolds for tissue engineering applications by either using traditional porogens or by additive manufacturing approaches are reflected. Finally, the biological in vitro and in vivo properties of magnesium phosphates for bone regeneration are summarized, which show promising results regarding the application as bone replacement material, but still lack in terms of testing in large animal models, load-bearing application sites and clinical data. STATEMENT OF SIGNIFICANCE Though bone substitutes from calcium phosphates have been investigated for a long time, a new trend is visible in the biomaterials sector: magnesium based bioceramics from magnesium phosphates and silicates due to the special biological significance of magnesium ions in enzymatic activation, cell growth and proliferation, etc. In contrast to pure magnesium implants, such formulations do not release hydrogen during degradation. As with calcium based bioceramics, magnesium based bioceramics are used for the development of diverse applications such as cements, macroporous scaffolds and coatings. From this perspective, we present a systematic overview on diverse kinds of magnesium based bioceramics, their processing regimes for different clinical purposes and their behavior both in vitro and in vivo.
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Huang B, Caetano G, Vyas C, Blaker JJ, Diver C, Bártolo P. Polymer-Ceramic Composite Scaffolds: The Effect of Hydroxyapatite and β-tri-Calcium Phosphate. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E129. [PMID: 29342890 PMCID: PMC5793627 DOI: 10.3390/ma11010129] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 01/08/2018] [Accepted: 01/11/2018] [Indexed: 11/17/2022]
Abstract
The design of bioactive scaffolds with improved mechanical and biological properties is an important topic of research. This paper investigates the use of polymer-ceramic composite scaffolds for bone tissue engineering. Different ceramic materials (hydroxyapatite (HA) and β-tri-calcium phosphate (TCP)) were mixed with poly-ε-caprolactone (PCL). Scaffolds with different material compositions were produced using an extrusion-based additive manufacturing system. The produced scaffolds were physically and chemically assessed, considering mechanical, wettability, scanning electron microscopy and thermal gravimetric tests. Cell viability, attachment and proliferation tests were performed using human adipose derived stem cells (hADSCs). Results show that scaffolds containing HA present better biological properties and TCP scaffolds present improved mechanical properties. It was also possible to observe that the addition of ceramic particles had no effect on the wettability of the scaffolds.
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Affiliation(s)
- Boyang Huang
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK.
| | - Guilherme Caetano
- Graduate Program in Biomedical Sciences, Herminio Ometto University Center, Araras-SP 13607-339, Brazil.
| | - Cian Vyas
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK.
| | - Jonny James Blaker
- Bio-Active Materials Group, School of Materials, The University of Manchester, Manchester M13 9PL, UK.
| | - Carl Diver
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK.
| | - Paulo Bártolo
- School of Mechanical, Aerospace and Civil Engineering, University of Manchester, Manchester M13 9PL, UK.
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Park CS, Ha TH, Kim M, Raja N, Yun HS, Sung MJ, Kwon OS, Yoon H, Lee CS. Fast and sensitive near-infrared fluorescent probes for ALP detection and 3d printed calcium phosphate scaffold imaging in vivo. Biosens Bioelectron 2018; 105:151-158. [PMID: 29412939 DOI: 10.1016/j.bios.2018.01.018] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/21/2017] [Accepted: 01/09/2018] [Indexed: 11/27/2022]
Abstract
Alkaline phosphatase (ALP) is a critical biological marker for osteoblast activity during early osteoblast differentiation, but few biologically compatible methods are available for its detection. Here, we describe the discovery of highly sensitive and rapidly responsive novel near-infrared (NIR) fluorescent probes (NIR-Phos-1, NIR-Phos-2) for the fluorescent detection of ALP. ALP cleaves the phosphate group from the NIR skeleton and substantially alters its photophysical properties, therefore generating a large "turn-on" fluorescent signal resulted from the catalytic hydrolysis on fluorogenic moiety. Our assay quantified ALP activity from 0 to 1.0UmL-1 with a 10-5-10-3UmL-1 limit of detection (LOD), showing a response rate completed within 1.5min. A potentially powerful approach to probe ALP activity in biological systems demonstrated real-time monitoring using both concentration- and time-dependent variations of endogenous ALP in live cells and animals. Based on high binding affinity to bone tissue of phosphate moiety, bone-like scaffold-based ALP detection in vivo was accessed using NIR probe-labeled three-dimensional (3D) calcium deficient hydroxyapatite (CDHA) scaffolds. They were subcutaneously implanted into mice and monitored ALP signal changes using a confocal imaging system. Our results suggest the possibility of early-stage ALP detection during neo-bone formation inside a bone defect, by in vivo fluorescent evaluation using 3D CDHA scaffolds.
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Affiliation(s)
- Chul Soon Park
- Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea; Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, South Korea
| | - Tai Hwan Ha
- Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea; University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, South Korea
| | - Moonil Kim
- Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea; University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, South Korea
| | - Naren Raja
- University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, South Korea; Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon 51508, South Korea
| | - Hui-Suk Yun
- University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, South Korea; Powder and Ceramics Division, Korea Institute of Materials Science (KIMS), 797 Changwon-daero, Seongsan-gu, Changwon 51508, South Korea
| | - Mi Jeong Sung
- University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, South Korea; Metabolism and Nutrition Research Group, Korea Food Research Institute (KFRI), 245 Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, South Korea
| | - Oh Seok Kwon
- Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea.
| | - Hyeonseok Yoon
- Department of Polymer Engineering, Graduate School, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, South Korea; School of Polymer Science and Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, South Korea.
| | - Chang-Soo Lee
- Hazards Monitoring Bionano Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, South Korea; University of Science & Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, South Korea.
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Magnesium phosphate ceramics incorporating a novel indene compound promote osteoblast differentiation in vitro and bone regeneration in vivo. Biomaterials 2017; 157:51-61. [PMID: 29245051 DOI: 10.1016/j.biomaterials.2017.11.032] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 11/15/2017] [Accepted: 11/21/2017] [Indexed: 02/04/2023]
Abstract
Incorporating bioactive molecules into synthetic ceramic scaffolds is challenging. In this study, to enhance bone regeneration, a magnesium phosphate (MgP) ceramic scaffold was incorporated with a novel indene compound, KR-34893. KR-34893 induced the deposition of minerals and expression of osteoblast marker genes in primary human bone marrow mesenchymal stem cells (BMSCs) and a mouse osteoblastic MC3T3-E1 cell line. Analysis of the mode of action showed that KR-34893 induced the phosphorylation of MAPK/extracellular signal-regulated kinase and extracellular signal-regulated kinase, and subsequently the expression of bone morphogenetic protein 7, accompanied by SMAD1/5/8 phosphorylation. Accordingly, KR-34893 was incorporated into an MgP scaffold prepared by 3D printing at room temperature, followed by cement reaction. KR-34893-incorporated MgP (KR-MgP) induced the expression of osteoblast differentiation marker genes in vitro. In a rat calvaria defect model, KR-MgP scaffolds enhanced bone regeneration and increased bone volume compared with MgP scaffolds, as assessed by micro-computed tomography and histological analyses. In conclusion, we developed a method for producing osteoinductive MgP scaffolds incorporating a bioactive organic compound, without high temperature sintering. The KR-MgP scaffolds enhanced osteoblast activation in vitro and bone regeneration in vivo.
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Wang Z, Ma Y, Wei J, Chen X, Cao L, Weng W, Li Q, Guo H, Su J. Effects of sintering temperature on surface morphology/microstructure, in vitro degradability, mineralization and osteoblast response to magnesium phosphate as biomedical material. Sci Rep 2017; 7:823. [PMID: 28400583 PMCID: PMC5429756 DOI: 10.1038/s41598-017-00905-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 03/16/2017] [Indexed: 12/11/2022] Open
Abstract
Magnesium phosphate (MP) was fabricated using a chemical precipitation method, and the biological performances of MP sintered at different temperatures as a biomedical material was investigated. The results indicated that the densification and crystallinity of MP increased as the sintering temperature increased. As the sintering temperature increased, the degradability of MP in PBS decreased, and the mineralization ability in SBF significantly increased. In addition, the MP sintered at 800 °C (MP8) possessed the lowest degradability and highest mineralization ability. Moreover, the positive response of MG63 cells to MP significantly increased as the sintering temperature increased, and MP8 significantly promoted the cell spreading, proliferation, differentiation and expressions of osteogenic differentiation-related genes. Faster degradation of MP0 resulted in higher pH environments and ion concentrations, which led to negative responses to osteoblasts. However, the appropriate degradation of MP8 resulted in suitable pH environments and ion concentrations, which led to positive responses to osteoblasts. This study demonstrated that the sintering temperature substantially affected the surface morphology/microstructure, degradability and mineralization, and osteoblasts response to magnesium phosphate.
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Affiliation(s)
- Zhiwei Wang
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Yuhai Ma
- Department of Orthopaedics, Zhejiang Provincial Armed Police Corps Hospital, Hangzhou City, Zhejiang Province, 310051, P.R. China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education, East China University of Science and Technology, Shanghai, 200237, P.R. China
| | - Xiao Chen
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Liehu Cao
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Weizong Weng
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Quan Li
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Han Guo
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, P.R. China
| | - Jiacan Su
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China.
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Domingos M, Gloria A, Coelho J, Bartolo P, Ciurana J. Three-dimensional printed bone scaffolds: The role of nano/micro-hydroxyapatite particles on the adhesion and differentiation of human mesenchymal stem cells. Proc Inst Mech Eng H 2017; 231:555-564. [PMID: 28056713 DOI: 10.1177/0954411916680236] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Bone tissue engineering is strongly dependent on the use of three-dimensional scaffolds that can act as templates to accommodate cells and support tissue ingrowth. Despite its wide application in tissue engineering research, polycaprolactone presents a very limited ability to induce adhesion, proliferation and osteogenic cell differentiation. To overcome some of these limitations, different calcium phosphates, such as hydroxyapatite and tricalcium phosphate, have been employed with relative success. This work investigates the influence of nano-hydroxyapatite and micro-hydroxyapatite (nHA and mHA, respectively) particles on the in vitro biomechanical performance of polycaprolactone/hydroxyapatite scaffolds. Morphological analysis performed with scanning electron microscopy allowed us to confirm the production of polycaprolactone/hydroxyapatite constructs with square interconnected pores of approximately 350 µm and to assess the distribution of hydroxyapatite particles within the polymer matrix. Compression mechanical tests showed an increase in polycaprolactone compressive modulus ( E) from 105.5 ± 11.2 to 138.8 ± 12.9 MPa (PCL_nHA) and 217.2 ± 21.8 MPa (PCL_mHA). In comparison to PCL_mHA scaffolds, the addition of nano-hydroxyapatite enhanced the adhesion and viability of human mesenchymal stem cells as confirmed by Alamar Blue assay. In addition, after 14 days of incubation, PCL_nHA scaffolds showed higher levels of alkaline phosphatase activity compared to polycaprolactone or PCL_mHA structures.
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Affiliation(s)
- Marco Domingos
- 1 School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester, UK
| | - Antonio Gloria
- 2 Institute of Polymers, Composites and Biomaterials, National Research Council of Italy, Naples, Italy
| | - Jorge Coelho
- 3 CEMUC, Department of Chemical Engineering, University of Coimbra, Coimbra, Portugal
| | - Paulo Bartolo
- 1 School of Mechanical, Aerospace and Civil Engineering, The University of Manchester, Manchester, UK
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Kim JA, Lim J, Naren R, Yun HS, Park EK. Effect of the biodegradation rate controlled by pore structures in magnesium phosphate ceramic scaffolds on bone tissue regeneration in vivo. Acta Biomater 2016; 44:155-67. [PMID: 27554019 DOI: 10.1016/j.actbio.2016.08.039] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 08/13/2016] [Accepted: 08/19/2016] [Indexed: 12/24/2022]
Abstract
UNLABELLED Similar to calcium phosphates, magnesium phosphate (MgP) ceramics have been shown to be biocompatible and support favorable conditions for bone cells. Micropores below 25μm (MgP25), between 25 and 53μm (MgP53), or no micropores (MgP0) were introduced into MgP scaffolds using different sizes of an NaCl template. The porosities of MgP25 and MgP53 were found to be higher than that of MgP0 because of their micro-sized pores. Both in vitro and in vivo analysis showed that MgP scaffolds with high porosity promoted rapid biodegradation. Implantation of the MgP0, MgP25, and MgP53 scaffolds into rabbit calvarial defects (with 4- and 6-mm diameters) was assessed at two times points (4 and 8weeks), followed by analysis of bone regeneration. The micro-CT and histologic analyses of the 4-mm defect showed that the MgP25 and MgP53 scaffolds were degraded completely at 4weeks with simultaneous bone and marrow-like structure regeneration. For the 6-mm defect, a similar pattern of regeneration was observed. These results indicate that the rate of degradation is associated with bone regeneration. The MgP25 and MgP53 scaffold-implanted bone showed a better lamellar structure and enhanced calcification compared to the MgP0 scaffold because of their porosity and degradation rate. Tartrate-resistant acid phosphatase (TRAP) staining indicated that the newly formed bone was undergoing maturation and remodeling. Overall, these data suggest that the pore architecture of MgP ceramic scaffolds greatly influence bone formation and remodeling activities and thus should be considered in the design of new scaffolds for long-term bone tissue regeneration. STATEMENT OF SIGNIFICANCE The pore structural conditions of scaffold, including porosity, pore size, pore morphology, and pore interconnectivity affect cell ingrowth, mechanical properties and biodegradabilities, which are key components of scaffold in bone tissue regeneration. In this study, we designed hierarchical pore structure of the magnesium phosphate (MgP) scaffold by combination of the 3D printing process, self-setting reaction and salt-leaching technique, and first studied the effect of pore structures of bioceramic scaffolds on bone tissue regeneration through both in vitro and in vivo studies (rabbit calvarial model). The MgP scaffolds with higher porosity promoted more rapid biodegradation and enhanced new bone formation and remodeling activities at the same time.
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Raja N, Yun HS. A simultaneous 3D printing process for the fabrication of bioceramic and cell-laden hydrogel core/shell scaffolds with potential application in bone tissue regeneration. J Mater Chem B 2016; 4:4707-4716. [DOI: 10.1039/c6tb00849f] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel process was developed to fabricate core/shell-structured 3D scaffolds, made of calcium-deficient hydroxyapatite (CDHA) and alginate laden with pre-osteoblast MC3T3-E1 cells, through a combination of cement chemistry, dual paste-extruding deposition (PED), and cell printing.
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Affiliation(s)
- Naren Raja
- Powder and Ceramics Division
- Korea Institute of Materials Science (KIMS)
- Changwon
- Republic of Korea
- Korea University of Science and Technology (UST)
| | - Hui-suk Yun
- Powder and Ceramics Division
- Korea Institute of Materials Science (KIMS)
- Changwon
- Republic of Korea
- Korea University of Science and Technology (UST)
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Liu YY, Yu HC, Liu Y, Liang G, Zhang T, Hu QX. Dual drug spatiotemporal release from functional gradient scaffolds prepared using 3D bioprinting and electrospinning. POLYM ENG SCI 2015. [DOI: 10.1002/pen.24239] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yuan-Yuan Liu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
- School of Mechatronic Engineering and Automation, Shanghai Key Laboratory of Intelligent Manufacturing and Robotics; Shanghai University; Shanghai 200444 China
| | - Hong-Chen Yu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Yi Liu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Gang Liang
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Ting Zhang
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
| | - Qing-Xi Hu
- Rapid Manufacturing Engineering Center; Shanghai University; Shanghai 200444 China
- School of Mechatronic Engineering and Automation, Shanghai Key Laboratory of Intelligent Manufacturing and Robotics; Shanghai University; Shanghai 200444 China
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Novel tricalcium silicate/magnesium phosphate composite bone cement having high compressive strength, in vitro bioactivity and cytocompatibility. Acta Biomater 2015; 21:217-27. [PMID: 25890099 DOI: 10.1016/j.actbio.2015.04.012] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Revised: 03/23/2015] [Accepted: 04/02/2015] [Indexed: 11/21/2022]
Abstract
Although inorganic bone cements such as calcium phosphate cements have been widely applied in orthopaedic and dental fields because of their self-setting ability, development of high-strength bone cement with bioactivity and biodegradability remains a major challenge. Therefore, the purpose of this study is to prepare a tricalcium silicate/magnesium phosphate (C3S/MPC) composite bone cement, which is intended to combine the excellent bioactivity of C3S with remarkable self-setting properties and mechanical strength of MPC. The self-setting and mechanical properties, in vitro induction of apatite formation and degradation behaviour, and cytocompatibility of the composite cements were investigated. Our results showed that the C3S/MPC composite cement with an optimal composition had compressive strength up to 87 MPa, which was significantly higher than C3S (25 MPa) and MPC (64 MPa). The setting time could be adjusted between 3 min and 29 min with the variation of compositions. The hydraulic reaction products of the C3S/MPC composite cement were composed of calcium silicate hydrate (CSH) derived from the hydration of C3S and gel-like amorphous substance. The C3S/MPC composite cements could induce apatite mineralization on its surface in SBF solution and degraded gradually in Tris-HCl solution. Besides, the composite cements showed good cytocompatibility and stimulatory effect on the proliferation of MC3T3-E1 osteoblast cells. Our results indicated that the C3S/MPC composite bone cement might be a new promising high-strength inorganic bioactive material which may hold the potential for bone repair in load-bearing site.
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Gao L, Li C, Chen F, Liu C. Fabrication and characterization of toughness-enhanced scaffolds comprising β-TCP/POC using the freeform fabrication system with micro-droplet jetting. ACTA ACUST UNITED AC 2015; 10:035009. [PMID: 26107985 DOI: 10.1088/1748-6041/10/3/035009] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
A novel elastomeric material, poly(1,8-octanediol-co-citrate) (POC), has demonstrated tremendous versatility because of its advantageous toughness, tunable degradation properties, and efficient drug release capability. In this study, POC was used to improve the mechanical performance of β-tricalcium phosphate (β-Ca3(PO4)2, β-TCP). (3D) β-TCP/POC composite scaffolds were fabricated by a 3D printing technique based on the freeform fabrication system with micro-droplet jetting (FFS-MDJ). The physiochemical properties, compressive modulus, drug release behavior, and cell response of β-TCP/POC composite scaffolds were systematically investigated. The results showed that β-TCP/POC scaffolds had uniform macropores of 300-400 μm, porosity of approximately 45%, biodegradability in phosphate-buffered saline, and high compressive modulus of 50-75 MPa. With the incorporation of POC into β-TCP, the toughness of the composite scaffolds was improved significantly. Moreover, β-TCP/POC scaffolds exhibited sustained drug (ibuprofen (IBU)) release capability. Additionally, β-TCP/POC scaffolds facilitated C2C12 cell attachment and proliferation. It was indicated that the 3D-printed porous β-TCP/POC scaffolds with high compressive modulus and good drug delivery performance might be a promising candidate for bone defect repair.
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Affiliation(s)
- Li Gao
- The State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China. Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, People's Republic of China
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Tripathi G, Raja N, Yun HS. Effect of direct loading of phytoestrogens into the calcium phosphate scaffold on osteoporotic bone tissue regeneration. J Mater Chem B 2015; 3:8694-8703. [DOI: 10.1039/c5tb01574j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
3D porous calcium deficient hydroxyapatite scaffolds with phytoestrogens were fabricated for osteoporotic bone tissue regeneration through a combination of 3D printing techniques and cement chemistry as a room temperature process.
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Affiliation(s)
- G. Tripathi
- Powder & Ceramic Division
- Korea Institute of Materials Science (KIMS)
- Changwon 641-831
- Republic of Korea
| | - N. Raja
- Powder & Ceramic Division
- Korea Institute of Materials Science (KIMS)
- Changwon 641-831
- Republic of Korea
- Korea University of Science and Technology (UST)
| | - H. S. Yun
- Powder & Ceramic Division
- Korea Institute of Materials Science (KIMS)
- Changwon 641-831
- Republic of Korea
- Korea University of Science and Technology (UST)
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Lee J, Yun HS. Effect of hydroxyapatite-containing microspheres embedded into three-dimensional magnesium phosphate scaffolds on the controlled release of lysozyme and in vitro biodegradation. Int J Nanomedicine 2014; 9:4177-89. [PMID: 25214782 PMCID: PMC4159369 DOI: 10.2147/ijn.s68143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The functionality of porous three-dimensional (3D) magnesium phosphate (MgP) scaffold was investigated for the development of a novel protein delivery system and biomimetic bone tissue engineering scaffold. This enhancement can be achieved by incorporation of hydroxyapatite (HA)-containing polymeric microspheres (MSs) into a bulk MgP matrix, and a paste-extruding deposition (PED) system. In this work, the amount of MS and HA was precisely controlled when manufacturing MS-embedded MgP (MS/MgP) composite scaffolds. The main influence was researched in terms of in vitro lysozyme-release, in vitro biodegradation, mechanical properties, and in vitro calcification. The controlled release of lysozyme was indicated, while showing graded release patterns according to HA content. The composite scaffolds degraded gradually with MS content and degradation time. Due to the effect of HA inclusion, the higher HA-containing MS/MgP scaffolds could, not only delay the biodegradation process but also, compensate for the possible loss of mechanical properties. In this regard, it is reasonable to confirm the inverse relationship between biodegradation and corresponding compressive properties. In order to encourage bioactivity and osteoconductivity, the MS/MgP composite scaffolds were subjected to simulated body fluid treatment. Calcium deposition was, in turn, improved with increasing MS and HA content over time. This quantitative result was also proved using morphological and elemental analysis. In summary, a significant transformation of a monolithic MgP scaffold was directed toward a multifunctional bone tissue engineering scaffold equipped with controlled protein delivery, biodegradability, and bioactivity.
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Affiliation(s)
- Jongman Lee
- Powder and Ceramics Division, Korea Institute of Materials Science, Changwon, Republic of Korea
| | - Hui-suk Yun
- Powder and Ceramics Division, Korea Institute of Materials Science, Changwon, Republic of Korea
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