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Zhao X, Zhang Y, Wang P, Guan J, Zhang D. Construction of multileveled and oriented micro/nano channels in Mg doped hydroxyapitite bioceramics and their effect on mimicking mechanical property of cortical bone and biological performance of cancellous bone. BIOMATERIALS ADVANCES 2024; 161:213871. [PMID: 38692181 DOI: 10.1016/j.bioadv.2024.213871] [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: 12/16/2023] [Revised: 04/13/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
Drawing on the structure and components of natural bone, this study developed Mg-doped hydroxyapatite (Mg-HA) bioceramics, characterized by multileveled and oriented micro/nano channels. These channels play a critical role in ensuring both mechanical and biological properties, making bioceramics suitable for various bone defects, particularly those bearing loads. Bioceramics feature uniformly distributed nanogrooves along the microchannels. The compressive strength or fracture toughness of the Mg-HA bioceramics with micro/nano channels formed by single carbon nanotube/carbon fiber (CNT/CF) (Mg-HA(05-CNT/CF)) are comparable to those of cortical bone, attributed to a combination of strengthened compact walls and microchannels, along with a toughening mechanism involving crack pinning and deflection at nanogroove intersections. The introduction of uniform nanogrooves also enhanced the porosity by 35.4 %, while maintaining high permeability owing to the capillary action in the oriented channels. This leads to superior degradation properties, protein adsorption, and in vivo osteogenesis compared with bioceramics with only microchannels. Mg-HA(05-CNT/CF) exhibited not only high strength and toughness comparable to cortical bone, but also permeability similar to cancellous bone, enhanced cell activity, and excellent osteogenic properties. This study presents a novel approach to address the global challenge of applying HA-based bioceramics to load-bearing bone defects, potentially revolutionizing their application in tissue engineering.
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Affiliation(s)
- Xueni Zhao
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, PR China.
| | - Yu Zhang
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, PR China
| | - Pengfei Wang
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, PR China
| | - Jinxin Guan
- College of Mechanical and Electrical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, PR China
| | - Dexin Zhang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, PR China.
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2
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Liu G, Wei X, Zhai Y, Zhang J, Li J, Zhao Z, Guan T, Zhao D. 3D printed osteochondral scaffolds: design strategies, present applications and future perspectives. Front Bioeng Biotechnol 2024; 12:1339916. [PMID: 38425994 PMCID: PMC10902174 DOI: 10.3389/fbioe.2024.1339916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/02/2024] [Indexed: 03/02/2024] Open
Abstract
Articular osteochondral (OC) defects are a global clinical problem characterized by loss of full-thickness articular cartilage with underlying calcified cartilage through to the subchondral bone. While current surgical treatments can relieve pain, none of them can completely repair all components of the OC unit and restore its original function. With the rapid development of three-dimensional (3D) printing technology, admirable progress has been made in bone and cartilage reconstruction, providing new strategies for restoring joint function. 3D printing has the advantages of fast speed, high precision, and personalized customization to meet the requirements of irregular geometry, differentiated composition, and multi-layered boundary layer structures of joint OC scaffolds. This review captures the original published researches on the application of 3D printing technology to the repair of entire OC units and provides a comprehensive summary of the recent advances in 3D printed OC scaffolds. We first introduce the gradient structure and biological properties of articular OC tissue. The considerations for the development of 3D printed OC scaffolds are emphatically summarized, including material types, fabrication techniques, structural design and seed cells. Especially from the perspective of material composition and structural design, the classification, characteristics and latest research progress of discrete gradient scaffolds (biphasic, triphasic and multiphasic scaffolds) and continuous gradient scaffolds (gradient material and/or structure, and gradient interface) are summarized. Finally, we also describe the important progress and application prospect of 3D printing technology in OC interface regeneration. 3D printing technology for OC reconstruction should simulate the gradient structure of subchondral bone and cartilage. Therefore, we must not only strengthen the basic research on OC structure, but also continue to explore the role of 3D printing technology in OC tissue engineering. This will enable better structural and functional bionics of OC scaffolds, ultimately improving the repair of OC defects.
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Affiliation(s)
- Ge Liu
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian, China
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Xiaowei Wei
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Yun Zhai
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian, China
| | - Jingrun Zhang
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Junlei Li
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Zhenhua Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
| | - Tianmin Guan
- School of Mechanical Engineering, Dalian Jiaotong University, Dalian, China
| | - Deiwei Zhao
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Dalian, China
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3
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Zhang Y, Zhu Y, Habibovic P, Wang H. Advanced Synthetic Scaffolds Based on 1D Inorganic Micro-/Nanomaterials for Bone Regeneration. Adv Healthc Mater 2024; 13:e2302664. [PMID: 37902817 DOI: 10.1002/adhm.202302664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 10/25/2023] [Indexed: 10/31/2023]
Abstract
Inorganic nanoparticulate biomaterials, such as calcium phosphate and bioglass particles, with chemical compositions similar to that of the inorganic component of natural bone, and hence having excellent biocompatibility and bioactivity, are widely used for the fabrication of synthetic bone graft substitutes. Growing evidence suggests that structurally anisotropic, or 1D inorganic micro-/nanobiomaterials are superior to inorganic nanoparticulate biomaterials in the context of mechanical reinforcement and construction of self-supporting 3D network structures. Therefore, in the past decades, efforts have been devoted to developing advanced synthetic scaffolds for bone regeneration using 1D micro-/nanobiomaterials as building blocks. These scaffolds feature extraordinary physical and biological properties, such as enhanced mechanical properties, super elasticity, multiscale hierarchical architecture, extracellular matrix-like fibrous microstructure, and desirable biocompatibility and bioactivity, etc. In this review, an overview of recent progress in the development of advanced scaffolds for bone regeneration is provided based on 1D inorganic micro-/nanobiomaterials with a focus on their structural design, mechanical properties, and bioactivity. The promising perspectives for future research directions are also highlighted.
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Affiliation(s)
- Yonggang Zhang
- State Key Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yingjie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, P. R. China
| | - Pamela Habibovic
- Maastricht University, Minderbroedersberg 4-6, Maastricht, 6211 LK ER, The Netherlands
| | - Huanan Wang
- State Key Laboratory of Fine Chemicals, School of Bioengineering, Dalian University of Technology, Dalian, 116024, P. R. China
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Wang Z, Xu Z, Yang X, Li M, Yip RCS, Li Y, Chen H. Current application and modification strategy of marine polysaccharides in tissue regeneration: A review. BIOMATERIALS ADVANCES 2023; 154:213580. [PMID: 37634336 DOI: 10.1016/j.bioadv.2023.213580] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 07/24/2023] [Accepted: 08/04/2023] [Indexed: 08/29/2023]
Abstract
Marine polysaccharides (MPs) are exceptional bioactive materials that possess unique biochemical mechanisms and pharmacological stability, making them ideal for various tissue engineering applications. Certain MPs, including agarose, alginate, carrageenan, chitosan, and glucan have been successfully employed as biological scaffolds in animal studies. As carriers of signaling molecules, scaffolds can enhance the adhesion, growth, and differentiation of somatic cells, thereby significantly improving the tissue regeneration process. However, the biological benefits of pure MPs composite scaffold are limited. Therefore, physical, chemical, enzyme modification and other methods are employed to expand its efficacy. Chemically, the structural properties of MPs scaffolds can be altered through modifications to functional groups or molecular weight reduction, thereby enhancing their biological activities. Physically, MPs hydrogels and sponges emulate the natural extracellular matrix, creating a more conducive environment for tissue repair. The porosity and high permeability of MPs membranes and nanomaterials expedite wound healing. This review explores the distinctive properties and applications of select MPs in tissue regeneration, highlighting their structural versatility and biological applicability. Additionally, we provide a brief overview of common modification strategies employed for MP scaffolds. In conclusion, MPs have significant potential and are expected to be a novel regenerative material for tissue engineering.
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Affiliation(s)
- Zhaokun Wang
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Zhiwen Xu
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Xuan Yang
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Man Li
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China.
| | - Ryan Chak Sang Yip
- Center for Nanomedicine, Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
| | - Yuanyuan Li
- Department of Food Science, Cornell University, Stocking Hall, Ithaca, NY 14853, USA.
| | - Hao Chen
- Marine College, Shandong University, NO. 180 Wenhua West Road, Gao Strict, Weihai 264209, China; The Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, Jiangnan University, NO. 1800 Lihu Road, Wuxi 214122, China.
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Xin H, Tomaskovic-Crook E, Al Maruf DSA, Cheng K, Wykes J, Manzie TGH, Wise SG, Crook JM, Clark JR. From Free Tissue Transfer to Hydrogels: A Brief Review of the Application of the Periosteum in Bone Regeneration. Gels 2023; 9:768. [PMID: 37754449 PMCID: PMC10530949 DOI: 10.3390/gels9090768] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/15/2023] [Accepted: 09/18/2023] [Indexed: 09/28/2023] Open
Abstract
The periosteum is a thin layer of connective tissue covering bone. It is an essential component for bone development and fracture healing. There has been considerable research exploring the application of the periosteum in bone regeneration since the 19th century. An increasing number of studies are focusing on periosteal progenitor cells found within the periosteum and the use of hydrogels as scaffold materials for periosteum engineering and guided bone development. Here, we provide an overview of the research investigating the use of the periosteum for bone repair, with consideration given to the anatomy and function of the periosteum, the importance of the cambium layer, the culture of periosteal progenitor cells, periosteum-induced ossification, periosteal perfusion, periosteum engineering, scaffold vascularization, and hydrogel-based synthetic periostea.
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Affiliation(s)
- Hai Xin
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Eva Tomaskovic-Crook
- Arto Hardy Family Biomedical Innovation Hub, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (E.T.-C.); (J.M.C.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
- Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - D S Abdullah Al Maruf
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Kai Cheng
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Royal Prince Alfred Institute of Academic Surgery, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW 2050, Australia
| | - James Wykes
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
| | - Timothy G. H. Manzie
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
| | - Steven G. Wise
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
| | - Jeremy M. Crook
- Arto Hardy Family Biomedical Innovation Hub, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (E.T.-C.); (J.M.C.)
- School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2006, Australia;
- Intelligent Polymer Research Institute, AIIM Facility, Innovation Campus, University of Wollongong, North Wollongong, NSW 2500, Australia
| | - Jonathan R. Clark
- Integrated Prosthetics and Reconstruction, Department of Head and Neck Surgery, Chris O’Brien Lifehouse, Camperdown, NSW 2050, Australia; (D.S.A.A.M.); (K.C.); (J.W.); (T.G.H.M.); (J.R.C.)
- Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW 2050, Australia
- Royal Prince Alfred Institute of Academic Surgery, Royal Prince Alfred Hospital, Sydney Local Health District, Camperdown, NSW 2050, Australia
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Liu X, Gao J, Cui X, Nie S, Wu X, Zhang L, Tang P, Liu J, Li M. Functionalized 3D-Printed PLA Biomimetic Scaffold for Repairing Critical-Size Bone Defects. Bioengineering (Basel) 2023; 10:1019. [PMID: 37760121 PMCID: PMC10526104 DOI: 10.3390/bioengineering10091019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/04/2023] [Accepted: 08/24/2023] [Indexed: 09/29/2023] Open
Abstract
The treatment of critical-size bone defects remains a complicated clinical challenge. Recently, bone tissue engineering has emerged as a potential therapeutic approach for defect repair. This study examined the biocompatibility and repair efficacy of hydroxyapatite-mineralized bionic polylactic acid (PLA) scaffolds, which were prepared through a combination of 3D printing technology, plasma modification, collagen coating, and hydroxyapatite mineralization coating techniques. Physicochemical analysis, mechanical testing, and in vitro and animal experiments were conducted to elucidate the impact of structural design and microenvironment on osteogenesis. Results indicated that the PLA scaffold exhibited a porosity of 84.1% and a pore size of 350 μm, and its macrostructure was maintained following functionalization modification. The functionalized scaffold demonstrated favorable hydrophilicity and biocompatibility and promoted cell adhesion, proliferation, and the expression of osteogenic genes such as ALP, OPN, Col-1, OCN, and RUNX2. Moreover, the scaffold was able to effectively repair critical-size bone defects in the rabbit radius, suggesting a novel strategy for the treatment of critical-size bone defects.
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Affiliation(s)
- Xiao Liu
- Medical School of Chinese PLA, Beijing 100853, China; (X.L.); (J.G.)
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Jianpeng Gao
- Medical School of Chinese PLA, Beijing 100853, China; (X.L.); (J.G.)
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Xiang Cui
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Shaobo Nie
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Xiaoyong Wu
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Licheng Zhang
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Peifu Tang
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Jianheng Liu
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
| | - Ming Li
- Department of Orthopaedics, The Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; (X.C.); (S.N.); (X.W.); (L.Z.); (P.T.)
- National Clinical Research Center for Orthopedics, Sports Medicine & Rehabilitation, Beijing 100853, China
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Feng J, Liu J, Wang Y, Diao J, Kuang Y, Zhao N. Beta-TCP scaffolds with rationally designed macro-micro hierarchical structure improved angio/osteo-genesis capability for bone regeneration. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:36. [PMID: 37486393 PMCID: PMC10366319 DOI: 10.1007/s10856-023-06733-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 05/08/2023] [Indexed: 07/25/2023]
Abstract
The design of hierarchical porous structure in scaffolds is crucial for bone defect regenerative repair. However, bioceramic materials present a challenge in precisely constructing designed micropores owing to the limitation of forming process. To investigate micropore shape influences bone regeneration in bioceramic scaffolds with macropores, hierarchical porous scaffolds with interconnective macropores (~400 μm) and two types of micropores (spherical and fibrous) were prepared using a combination of direct ink writing (DIW) and template sacrifice methods. Compared to the scaffold with spherical micropores, the scaffold with highly interconnected fibrous micropores significantly improved cell adhesion and upregulated osteogenic and angiogenetic-related gene expression in mBMSCs and HUVECs, respectively. Furthermore, in vivo implantation experiments showed that hierarchical scaffolds with fibrous micropores accelerated the bone repair process significantly. This result can be attributed to the high interconnectivity of fibrous micropores, which promotes the transportation of nutrients and waste during bone regeneration. Our work demonstrates that hierarchical porous scaffold design, especially one with a fibrous micropore structure, is a promising strategy for improving the bone regeneration performance of bioceramic scaffolds.
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Affiliation(s)
- Jianlang Feng
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- NMPA Key Laboratory for Research and Evaluation of Innovative Biomaterials for Medical Devices, Guangzhou, 510006, PR China
| | - Junjie Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- NMPA Key Laboratory for Research and Evaluation of Innovative Biomaterials for Medical Devices, Guangzhou, 510006, PR China
| | - Yingqu Wang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
| | - Jingjing Diao
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China
- Medical Devices Research & Testing Center of SCUT, Guangzhou, 510006, PR China
| | - Yudi Kuang
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China.
- School of Biomedical Sciences and Engineering, South China University of Technology, Guangzhou International Campus, Guangzhou, 511442, PR China.
- Guangdong Institute of Advanced Biomaterials and Medical Devices, Guangzhou, 510535, PR China.
| | - Naru Zhao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510641, PR China.
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, PR China.
- NMPA Key Laboratory for Research and Evaluation of Innovative Biomaterials for Medical Devices, Guangzhou, 510006, PR China.
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Al-Shalawi FD, Mohamed Ariff AH, Jung DW, Mohd Ariffin MKA, Seng Kim CL, Brabazon D, Al-Osaimi MO. Biomaterials as Implants in the Orthopedic Field for Regenerative Medicine: Metal versus Synthetic Polymers. Polymers (Basel) 2023; 15:2601. [PMID: 37376247 DOI: 10.3390/polym15122601] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 05/30/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Patients suffering bone fractures in different parts of the body require implants that will enable similar function to that of the natural bone that they are replacing. Joint diseases (rheumatoid arthritis and osteoarthritis) also require surgical intervention with implants such as hip and knee joint replacement. Biomaterial implants are utilized to fix fractures or replace parts of the body. For the majority of these implant cases, either metal or polymer biomaterials are chosen in order to have a similar functional capacity to the original bone material. The biomaterials that are employed most often for implants of bone fracture are metals such as stainless steel and titanium, and polymers such as polyethene and polyetheretherketone (PEEK). This review compared metallic and synthetic polymer implant biomaterials that can be employed to secure load-bearing bone fractures due to their ability to withstand the mechanical stresses and strains of the body, with a focus on their classification, properties, and application.
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Affiliation(s)
- Faisal Dakhelallah Al-Shalawi
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Azmah Hanim Mohamed Ariff
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Research Center Advanced Engineering Materials and Composites (AEMC), Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Dong-Won Jung
- Faculty of Applied Energy System, Major of Mechanical Engineering, Jeju National University, 102 Jejudaehak-ro, Jeju-si 63243, Republic of Korea
| | - Mohd Khairol Anuar Mohd Ariffin
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Collin Looi Seng Kim
- Department of Orthopaedic, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Dermot Brabazon
- Advanced Manufacturing Research Centre, and Advanced Processing Technology Research Centre, School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, D09 V209 Dublin 9, Ireland
| | - Maha Obaid Al-Osaimi
- Department of Microbiology, Faculty of Agriculture, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
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Dommeti VK, Roy S, Pramanik S, Merdji A, Ouldyerou A, Özcan M. Design and Development of Tantalum and Strontium Ion Doped Hydroxyapatite Composite Coating on Titanium Substrate: Structural and Human Osteoblast-like Cell Viability Studies. MATERIALS (BASEL, SWITZERLAND) 2023; 16:1499. [PMID: 36837128 PMCID: PMC9966348 DOI: 10.3390/ma16041499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/29/2023] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
In order to reduce the loosening of dental implants, surface modification with hydroxyapatite (HA) coating has shown promising results. Therefore, in this present study, the sol-gel technique has been employed to form a tantalum and strontium ion-doped hybrid HA layer coating onto the titanium (Ti)-alloy substrate. In this study, the surface modification was completed by using 3% tantalum pent oxide (Ta2O5), 3% strontium (Sr), and a combination of 1.5% Ta2O5 and 1.5% Sr as additives, along with HA gel by spin coating technique. These additives played a prominent role in producing a porous structure layer coating and further cell growth. The MG63 cell culture assay results indicated that due to the incorporation of strontium ions along with tantalum embedded in HA, cell proliferation increased significantly after a 48 h study. Therefore, the present results, including microstructure, crystal structure, binding energy, and cell proliferation, showed that the additives 1.5% Ta2O5 and 1.5% Sr embedded in HA on the Ti-substrate had an optimized porous coating structure, which will enhance bone in-growth in surface-modified Ti-implants. This material had a proper porous morphology with a roughness profile, which may be suitable for tissue in-growth between a surface-modified textured implant and bone interface and could be applicable for dental implants.
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Affiliation(s)
- Vamsi Krishna Dommeti
- Department of Mechanical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Sandipan Roy
- Department of Mechanical Engineering, College of Engineering and Technology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Sumit Pramanik
- Functional and Biomaterials Engineering Lab, Department of Mechanical Engineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, India
| | - Ali Merdji
- Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara 29000, Algeria
- Laboratory of Mechanics Physics of Materials (LMPM), Faculty of Technology, Djillali Liabes University, Sidi Bel Abbès 22000, Algeria
| | - Abdelhak Ouldyerou
- Department of Mechanical Engineering, Faculty of Science and Technology, University of Mascara, Mascara 29000, Algeria
| | - Mutlu Özcan
- Division of Dental Biomaterials, Clinic for Reconstructive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, Switzerland
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10
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Yue J, Han Q, Chen H, Zhang A, Liu Y, Gong X, Wang Y, Wang J, Wu M. Artificial lamina after laminectomy: Progress, applications, and future perspectives. Front Surg 2023; 10:1019410. [PMID: 36816003 PMCID: PMC9932198 DOI: 10.3389/fsurg.2023.1019410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 01/10/2023] [Indexed: 02/05/2023] Open
Abstract
In clinical practice, laminectomy is a commonly used procedure for spinal decompression in patients suffering from spinal disorders such as ossification of ligamentum flavum, lumbar stenosis, severe spinal fracture, and intraspinal tumors. However, the loss of posterior column bony support, the extensive proliferation of fibroblasts and scar formation after laminectomy, and other complications (such as postoperative epidural fibrosis and iatrogenic instability) may cause new symptoms requiring revision surgery. Implantation of an artificial lamina prosthesis is one of the most important methods to avoid post-laminectomy complications. Artificial lamina is a type of synthetic lamina tissue made of various materials and shapes designed to replace the resected autologous lamina. Artificial laminae can provide a barrier between the dural sac and posterior soft tissues to prevent postoperative epidural fibrosis and paravertebral muscle compression and provide mechanical support to maintain spinal alignment. In this paper, we briefly review the complications of laminectomy and the necessity of artificial lamina, then we review various artificial laminae from clinical practice and laboratory research perspectives. Based on a combination of additive manufacturing technology and finite element analysis for spine surgery, we propose a new designing perspective of artificial lamina for potential use in clinical practice.
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Affiliation(s)
- Jing Yue
- Department of Anesthesiology, The Second Hospital of Jilin University, Changchun, China
| | - Qing Han
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Hao Chen
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Aobo Zhang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Yang Liu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Xuqiang Gong
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Yang Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China
| | - Jincheng Wang
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China,Correspondence: Minfei Wu Jincheng Wang
| | - Minfei Wu
- Department of Orthopedics, The Second Hospital of Jilin University, Changchun, China,Correspondence: Minfei Wu Jincheng Wang
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11
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Wu Y, Chen R, Chen X, Yang Y, Qiao J, Liu Y. Development of Strong and Tough β-TCP/PCL Composite Scaffolds with Interconnected Porosity by Digital Light Processing and Partial Infiltration. MATERIALS (BASEL, SWITZERLAND) 2023; 16:947. [PMID: 36769953 PMCID: PMC9918277 DOI: 10.3390/ma16030947] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/09/2023] [Accepted: 01/17/2023] [Indexed: 06/18/2023]
Abstract
Strong and tough β-TCP/PCL composite scaffolds with interconnected porosity were developed by combining digital light processing and vacuum infiltration. The composite scaffolds were comprised of pure β-TCP, β-TCP matrix composite and PCL matrix composite. The porous β-TCP/PCL composite scaffolds showed remarkable mechanical advantages compared with ceramic scaffolds with the same macroscopic pore structure (dense scaffolds). The composite scaffolds exhibited a significant increase in strain energy density and fracture energy density, though with similar compressive and flexural strengths. Moreover, the composite scaffolds had a much higher Weibull modulus and longer fatigue life than the dense scaffolds. It was revealed that the composite scaffolds with interconnected porosity possess comprehensive mechanical properties (high strength, excellent toughness, significant reliability and fatigue resistance), which suggests that they could replace the pure ceramic scaffolds for degradable bone substitutes, especially in complex stress environments.
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Affiliation(s)
- Yanlong Wu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
- Ji Hua Laboratory, Foshan 528200, China
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
| | - Ruomeng Chen
- Key Lab of Intelligent Equipment Digital Design and Process Simulation, Tangshan College, Tangshan 063000, China
| | - Xu Chen
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
- Ji Hua Laboratory, Foshan 528200, China
| | - Yongqiang Yang
- School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jian Qiao
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
| | - Yaxiong Liu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
- Ji Hua Laboratory, Foshan 528200, China
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12
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Zhang Y, Habibovic P. Delivering Mechanical Stimulation to Cells: State of the Art in Materials and Devices Design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2110267. [PMID: 35385176 DOI: 10.1002/adma.202110267] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 03/19/2022] [Indexed: 06/14/2023]
Abstract
Biochemical signals, such as growth factors, cytokines, and transcription factors are known to play a crucial role in regulating a variety of cellular activities as well as maintaining the normal function of different tissues and organs. If the biochemical signals are assumed to be one side of the coin, the other side comprises biophysical cues. There is growing evidence showing that biophysical signals, and in particular mechanical cues, also play an important role in different stages of human life ranging from morphogenesis during embryonic development to maturation and maintenance of tissue and organ function throughout life. In order to investigate how mechanical signals influence cell and tissue function, tremendous efforts have been devoted to fabricating various materials and devices for delivering mechanical stimuli to cells and tissues. Here, an overview of the current state of the art in the design and development of such materials and devices is provided, with a focus on their design principles, and challenges and perspectives for future research directions are highlighted.
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Affiliation(s)
- Yonggang Zhang
- Department of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
| | - Pamela Habibovic
- Department of Instructive Biomaterials Engineering, Maastricht University, MERLN Institute for Technology-Inspired Regenerative Medicine, Universiteitssingel 40, Maastricht, 6229 ER, The Netherlands
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13
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Liu Q, Zhai W. Hierarchical Porous Ceramics with Distinctive Microstructures by Emulsion-Based Direct Ink Writing. ACS APPLIED MATERIALS & INTERFACES 2022; 14:32196-32205. [PMID: 35786835 DOI: 10.1021/acsami.2c03245] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Hierarchical porous materials are ubiquitous in nature and have inspired the fabrication of cellular structures for a multitude of applications. As an extrusion-based 3D printing technique, direct ink writing (DIW) allows for customizable design and accurate control of printed structures. Recently, its combination with colloidal processing methods used for bulk porous ceramics, such as emulsion templating, has further extended its capability of fabricating porous ceramics across multiple length scales. In light of the recent development, the ink formulation for emulsion-based DIW can be further explored, and there is still a need for a better understanding of the structure-property relationship. Herein, we introduce two types of gelling additives, i.e., poly(ethylenimine) (PEI) and Pluronic F-127, respectively, into particle-stabilized emulsions and fabricate hierarchical porous alumina lattices by DIW. We discover that the two gelling additives can lead to distinctive microstructures due to their different gelling mechanisms. Moreover, the 3D printed hierarchical porous ceramic lattices are found to exhibit a potential energy absorption property. The effects of ink formulations, including gelling additives and solid loading, on ink rheology, microstructure, and mechanical properties are investigated. The 3D printed hierarchical porous ceramic lattices exhibit a high average porosity of 73.7%-79.3% with an average compressive strength of 1.53-9.61 MPa and a specific energy absorption of 0.33-2.67 J/g. Featuring two distinctive microstructures with tunable structural features and mechanical properties, the 3D printed hierarchical porous ceramics in this study have potential in many applications, including lightweight structures, tissue engineering scaffolds, filtration, etc.
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Affiliation(s)
- Quyang Liu
- Department of Mechanical Engineering, National University of Singapore, 117575 Singapore
| | - Wei Zhai
- Department of Mechanical Engineering, National University of Singapore, 117575 Singapore
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14
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Ansari MAA, Golebiowska AA, Dash M, Kumar P, Jain PK, Nukavarapu SP, Ramakrishna S, Nanda HS. Engineering biomaterials to 3D-print scaffolds for bone regeneration: practical and theoretical consideration. Biomater Sci 2022; 10:2789-2816. [PMID: 35510605 DOI: 10.1039/d2bm00035k] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
There are more than 2 million bone grafting procedures performed annually in the US alone. Despite significant efforts, the repair of large segmental bone defects is a substantial clinical challenge which requires bone substitute materials or a bone graft. The available biomaterials lack the adequate mechanical strength to withstand the static and dynamic loads while maintaining sufficient porosity to facilitate cell in-growth and vascularization during bone tissue regeneration. A wide range of advanced biomaterials are being currently designed to mimic the physical as well as the chemical composition of a bone by forming polymer blends, polymer-ceramic and polymer-degradable metal composites. Transforming these novel biomaterials into porous and load-bearing structures via three-dimensional printing (3DP) has emerged as a popular manufacturing technique to develop engineered bone grafts. 3DP has been adopted as a versatile tool to design and develop bone grafts that satisfy porosity and mechanical requirements while having the ability to form grafts of varied shapes and sizes to meet the physiological requirements. In addition to providing surfaces for cell attachment and eventual bone formation, these bone grafts also have to provide physical support during the repair process. Hence, the mechanical competence of the 3D-printed scaffold plays a key role in the success of the implant. In this review, we present various recent strategies that have been utilized to design and develop robust biomaterials that can be deployed for 3D-printing bone substitutes. The article also reviews some of the practical, theoretical and biological considerations adopted in the 3D-structure design and development for bone tissue engineering.
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Affiliation(s)
- Mohammad Aftab Alam Ansari
- Biomedical Engineering and Technology Lab, Mechanical engineering discipline, PDPM Indian Institute of Information Technology, Design & Manufacturing Jabalpur, India.
- FFF Laboratory, Mechanical engineering discipline, PDPM Indian Institute of Information Technology, Design & Manufacturing Jabalpur, India.
- International Centre for Sustainable and Net Zero Technologies, PDPM-Indian Institute of Information Technology Design and Manufacturing (IIITDM) Jabalpur, Dumna Airport Road, Jabalpur-482005, MP, India
| | - Aleksandra A Golebiowska
- Biomedical Engineering, Materials Science & Engineering, and Orthopaedic Surgery, University of Connecticut, 260 Glenbrook Road, Unit 3247 Storrs, CT, 06269, USA
| | - Madhusmita Dash
- School of Minerals, Metallurgical and Materials Engineering, Indian Institute of Technology Bhubaneswar, Arugul, Khurdha 752050, Odisha, India
- International Centre for Sustainable and Net Zero Technologies, PDPM-Indian Institute of Information Technology Design and Manufacturing (IIITDM) Jabalpur, Dumna Airport Road, Jabalpur-482005, MP, India
| | - Prasoon Kumar
- Biodesign and Medical device laboratory, Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, 769008, Odisha, India.
| | - Prashant Kumar Jain
- FFF Laboratory, Mechanical engineering discipline, PDPM Indian Institute of Information Technology, Design & Manufacturing Jabalpur, India.
| | - Syam P Nukavarapu
- Biomedical Engineering, Materials Science & Engineering, and Orthopaedic Surgery, University of Connecticut, 260 Glenbrook Road, Unit 3247 Storrs, CT, 06269, USA
| | - Seeram Ramakrishna
- Centre for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Engineering Drive 3, Singapore 117587, Singapore
| | - Himansu Sekhar Nanda
- Biomedical Engineering and Technology Lab, Mechanical engineering discipline, PDPM Indian Institute of Information Technology, Design & Manufacturing Jabalpur, India.
- International Centre for Sustainable and Net Zero Technologies, PDPM-Indian Institute of Information Technology Design and Manufacturing (IIITDM) Jabalpur, Dumna Airport Road, Jabalpur-482005, MP, India
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15
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A Review of 3D Printed Bone Implants. MICROMACHINES 2022; 13:mi13040528. [PMID: 35457833 PMCID: PMC9025296 DOI: 10.3390/mi13040528] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/22/2022] [Accepted: 03/25/2022] [Indexed: 12/17/2022]
Abstract
3D printing, that is, additive manufacturing, has solved many major problems in general manufacturing, such as three-dimensional tissue structure, microenvironment control difficulty, product production efficiency and repeatability, etc., improved the manufacturing speed and precision of personalized bone implants, and provided a lot of support for curing patients with bone injuries. The application of 3D printing technology in the medical field is gradually extensive, especially in orthopedics. The purpose of this review is to provide a report on the related achievements of bone implants based on 3D printing technology in recent years, including materials, molding methods, optimization of implant structure and performance, etc., in order to point out the existing shortcomings of 3D printing bone implants, promote the development of all aspects of bone implants, and make a prospect of 4D printing, hoping to provide some reference for the subsequent research of 3D printing bone implants.
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16
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Shibahara K, Hayashi K, Nakashima Y, Ishikawa K. Effects of Channels and Micropores in Honeycomb Scaffolds on the Reconstruction of Segmental Bone Defects. Front Bioeng Biotechnol 2022; 10:825831. [PMID: 35372306 PMCID: PMC8971796 DOI: 10.3389/fbioe.2022.825831] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/01/2022] [Indexed: 01/17/2023] Open
Abstract
The reconstruction of critical-sized segmental bone defects is a key challenge in orthopedics because of its intractability despite technological advancements. To overcome this challenge, scaffolds that promote rapid bone ingrowth and subsequent bone replacement are necessary. In this study, we fabricated three types of carbonate apatite honeycomb (HC) scaffolds with uniaxial channels bridging the stumps of a host bone. These HC scaffolds possessed different channel and micropore volumes. The HC scaffolds were implanted into the defects of rabbit ulnar shafts to evaluate the effects of channels and micropores on bone reconstruction. Four weeks postoperatively, the HC scaffolds with a larger channel volume promoted bone ingrowth compared to that with a larger micropore volume. In contrast, 12 weeks postoperatively, the HC scaffolds with a larger volume of the micropores rather than the channels promoted the scaffold resorption by osteoclasts and bone formation. Thus, the channels affected bone ingrowth in the early stage, and micropores affected scaffold resorption and bone formation in the middle stage. Furthermore, 12 weeks postoperatively, the HC scaffolds with large volumes of both channels and micropores formed a significantly larger amount of new bone than that attained using HC scaffolds with either large volume of channels or micropores, thereby bridging the host bone stumps. The findings of this study provide guidance for designing the pore structure of scaffolds.
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Affiliation(s)
- Keigo Shibahara
- Department of Biomaterials Faculty of Dental Science, Kyushu University, Fukuoka, Japan
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Koichiro Hayashi
- Department of Biomaterials Faculty of Dental Science, Kyushu University, Fukuoka, Japan
- *Correspondence: Koichiro Hayashi,
| | - Yasuharu Nakashima
- Department of Orthopedic Surgery, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kunio Ishikawa
- Department of Biomaterials Faculty of Dental Science, Kyushu University, Fukuoka, Japan
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17
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Wang J, Tang Y, Cao Q, Wu Y, Wang Y, Yuan B, Li X, Zhou Y, Chen X, Zhu X, Tu C, Zhang X. Fabrication and biological evaluation of 3D printed calcium phosphate ceramic scaffolds with distinct macroporous geometries through digital light processing technology. Regen Biomater 2022; 9:rbac005. [PMID: 35668922 PMCID: PMC9160879 DOI: 10.1093/rb/rbac005] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/10/2021] [Accepted: 12/28/2021] [Indexed: 02/05/2023] Open
Abstract
Abstract
Digital light processing (DLP)-based 3D printing technique holds promise in fabricating scaffolds with high precision. Here raw calcium phosphate (CaP) powders were modified by 5.5% monoalcohol ethoxylate phosphate (MAEP) to ensure high solid loading and low viscosity. The rheological tests found that photocurable slurries composed of 50 wt % modified CaP powders and 2 wt % toners were suitable for DLP printing. Based on geometric models designed by CAD system, three printed CaP ceramics with distinct macroporous structures were prepared, including simple cube, octet-truss, and inverse face-centered cube (fcc), which presented the similar phase composition and microstructure, but the different macropore geometries. Inverse-fcc group showed the highest porosity and compressive strength. The in vitro and in vivo biological evaluations were performed to compare the bioactivity of three printed CaP ceramics, and the traditional foamed ceramic was used as control. It suggested that all CaP ceramics exhibited good biocompatibility, as evidence by an even bone-like apatite layer formation on the surface, and the good cell proliferation and spreading. A mouse intramuscular implantation model found that all of CaP ceramics could induce ectopic bone formation, and Foam group had the strongest osteoinduction, followed by Inverse-fcc, while Cube and Octet-truss had the weakest one. It indicated that macropore geometry was of great importance to affect the osteoinductivity of scaffolds, and spherical, concave macropores facilitated osteogenesis. These findings provide a strategy to design and fabricate high-performance orthopedic grafts with proper pore geometry and desired biological performance via DLP-based 3D printing technique.
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Affiliation(s)
- Jing Wang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Yitao Tang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Quanle Cao
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Yonghao Wu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Yitian Wang
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Bo Yuan
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Xiangfeng Li
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Yong Zhou
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
| | - Chongqi Tu
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, College of Biomedical Engineering, Sichuan University, Chengdu, 610064, China
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18
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Template Electrochemical Synthesis of Hydroxyapatite on a Titania–Silver Composite Surface for Potential Use in Implantology. COATINGS 2022. [DOI: 10.3390/coatings12020266] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Modern materials science, both in terms of functional and structural materials, is actively developing towards the creation of structures with a given ordering. A wide range of methods involves ordering the structure according to a template shape. Template synthesis is one of the mots wide-spread approaches. Most often, the template synthesis method is implemented under conditions of limiting the growth of the phase due to the geometry of the template. In the present work, a template electrochemical method is considered for calcium hydroxyapatite (HAp) coating synthesis, based on the replication of the planar template texture during deposition. In this case, the template is an array of silver microparticles immobilized on an electrically conductive substrate, separated by an insulator layer. The developed approach is similar to the mask metallization widely used in planar technology. In this work, the possibility of the template pulsed electrodeposition of ceramics rather than metal is shown using HAp as an example. This approach is interesting for materials science, in particular, for obtaining micro-ordered hydroxyapatite structures—a crystallochemical analogue of the inorganic bone tissue component—on the surface of bone implants, which can be implemented to improve their biomedical characteristics. As a result of our study, we experimentally determined the conditions for obtaining the composite coating TiO2/Ag/Ca10(PO4)6(OH)2 with controlled phase structure, topology and localization of components on the surface, which was confirmed by Scanning Electron Microscopy, Energy Dispersive Spectroscopy, and X-ray Diffraction (SEM, EDS and XRD). The absence of cytotoxicity for the osteoblast-like cells of the developed coating was revealed by cytological tests.
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19
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Jongprateep O, Jitanukul N, Saphongxay K, Petchareanmongkol B, Bansiddhi A, Laobuthee A, Lertworasirikul A, Techapiesancharoenkij R. Hydroxyapatite coating on an aluminum/bioplastic scaffold for bone tissue engineering. RSC Adv 2022; 12:26789-26799. [PMID: 36320835 PMCID: PMC9491302 DOI: 10.1039/d2ra03285f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 08/28/2022] [Indexed: 11/21/2022] Open
Abstract
Three-dimensional printing can produce scaffolds with shapes and dimensions tailored for practical clinical applications. Enhanced osteoconductivity of such scaffolds is generally desired. Hydroxyapatite (HA) is an inorganic ceramic that can be used to coat such scaffolds and to accelerate healing during the bone restoration process. In this study, HA-coated aluminum/bioplastic scaffolds were fabricated, and their structural characteristics and osteoconductivity were evaluated. Aluminum/bioplastic scaffolds were fabricated by three-dimensional printing, and HA slurries with solids loadings of 10–20 vol% were used for coating. As solids loadings increased, the thickness of the coating layers slightly increased, whereas pore sizes decreased. The average compressive strength was comparable to that of cancellous bone. Potential osteoconductivity was tested by simulated body fluid immersion for 28 days, and the formation of the HA phase on the surface along with a weight increase indicates the potential bioactivity of the samples. Schematic representation of hydroxyapatite synthesis, 3D printing of Al/PLA scaffolds, and hydrothermal coating of the scaffolds. The best uniformity of coating and the greatest compressive strength were observed in samples coated with 10 vol% slurry.![]()
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Affiliation(s)
- Oratai Jongprateep
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED Net), Bangkok, Thailand
| | - Nonthaporn Jitanukul
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Khotamy Saphongxay
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED Net), Bangkok, Thailand
| | - Benjamon Petchareanmongkol
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Ampika Bansiddhi
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Apirat Laobuthee
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Amornrat Lertworasirikul
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
| | - Ratchatee Techapiesancharoenkij
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
- ICE-Matter Consortium, ASEAN University Network/Southeast Asia Engineering Education Development Network (AUN/SEED Net), Bangkok, Thailand
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20
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Xia P, Luo Y. Vascularization in tissue engineering: The architecture cues of pores in scaffolds. J Biomed Mater Res B Appl Biomater 2021; 110:1206-1214. [PMID: 34860454 DOI: 10.1002/jbm.b.34979] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 10/21/2021] [Accepted: 11/19/2021] [Indexed: 12/28/2022]
Abstract
Vascularization is a key event and also still a challenge in tissue engineering. Many efforts have been devoted to the development of vascularization based on cells, growth factors, and porous scaffolds in the past decades. Among these efforts, the architecture features of pores in scaffolds played important roles for vascularization, which have attracted increasing attention. It has been known that the open macro pores in scaffolds could facilitate cell migration, nutrient, and oxygen diffusion, which then could promote new tissue formation and vascularization. The pore parameters are the important factors affecting cells response and vessel formation. Thus, this review will give an overview of the current advances in the effects of pore parameters on vascularization in tissue engineering, mainly including pore size, interconnectivity, pore size distribution, pore shape (channel structure), and the micro/nano-surface topography of pores.
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Affiliation(s)
- Ping Xia
- People's Hospital of Longhua, The Affiliated Hospital of Southern Medical University, Shenzhen, China
| | - Yongxiang Luo
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen, China
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21
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Liu Q, Lu WF, Zhai W. Toward stronger robocast calcium phosphate scaffolds for bone tissue engineering: A mini-review and meta-analysis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 134:112578. [PMID: 35525758 DOI: 10.1016/j.msec.2021.112578] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/10/2021] [Accepted: 11/25/2021] [Indexed: 12/26/2022]
Abstract
Among different treatments of critical-sized bone defects, bone tissue engineering (BTE) is a fast-developing strategy centering around the fabrication of scaffolds that can stimulate tissue regeneration and provide mechanical support at the same time. This area has seen an extensive application of bioceramics, such as calcium phosphate, for their bioactivity and resemblance to the composition of natural bones. Moreover, recent advances in additive manufacturing (AM) have unleashed enormous potential in the fabrication of BTE scaffolds with tailored porous structures as well as desired biological and mechanical properties. Robocasting is an AM technique that has been widely applied to fabricate calcium phosphate scaffolds, but most of these scaffolds do not meet the mechanical requirements for load-bearing BTE scaffolds. In light of this challenge, various approaches have been utilized to mechanically strengthen the scaffolds. In this review, the current state of knowledge and existing research on robocasting of calcium phosphate scaffolds are presented. Applying the Gibson-Ashby model, this review provides a meta-analysis from the published literature of the compressive strength of robocast calcium phosphate scaffolds. Furthermore, this review evaluates different approaches to the mechanical strengthening of robocast calcium phosphate scaffolds. The aim of this review is to provide insightful data and analysis for future research on mechanical strengthening of robocast calcium phosphate scaffolds and ultimately for their clinical applications.
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Affiliation(s)
- Quyang Liu
- Department of Mechanical Engineering, National University of Singapore, Singapore 117411, Singapore
| | - Wen Feng Lu
- Department of Mechanical Engineering, National University of Singapore, Singapore 117411, Singapore; The NUS Centre for Additive Manufacturing, National University of Singapore, Singapore 117581, Singapore
| | - Wei Zhai
- Department of Mechanical Engineering, National University of Singapore, Singapore 117411, Singapore; The NUS Centre for Additive Manufacturing, National University of Singapore, Singapore 117581, Singapore.
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22
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Shi F, Xiao D, Zhang C, Zhi W, Liu Y, Weng J. The effect of macropore size of hydroxyapatite scaffold on the osteogenic differentiation of bone mesenchymal stem cells under perfusion culture. Regen Biomater 2021; 8:rbab050. [PMID: 34567788 PMCID: PMC8457200 DOI: 10.1093/rb/rbab050] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 08/19/2021] [Accepted: 09/02/2021] [Indexed: 11/12/2022] Open
Abstract
Previous studies have proved that dynamic culture could facilitate nutrients transport and apply mechanical stimulation to the cells within three-dimensional scaffolds, thus enhancing the differentiation of stem cells towards the osteogenic phenotype. However, the effects of macropore size on osteogenic differentiation of stem cells under dynamic condition are still unclear. Therefore, the objective of this study was to investigate the effects of macropore size of hydroxyapatite (HAp) scaffolds on osteogenic differentiation of bone mesenchymal stem cells under static and perfusion culture conditions. In vitro cell culture results showed that cell proliferation, alkaline phosphate (ALP) activity, mRNA expression of ALP, collagen-I (Col-I), osteocalcin (OCN) and osteopontin (OPN) were enhanced when cultured under perfusion condition in comparison to static culture. Under perfusion culture condition, the ALP activity and the gene expression of ALP, Col-I, OCN and OPN were enhanced with the macropore size decreasing from 1300 to 800 µm. However, with the further decrease in macropore size from 800 to 500 µm, the osteogenic related gene expression and protein secretion were reduced. Computational fluid dynamics analysis showed that the distribution areas of medium- and high-speed flow increased with the decrease in macropore size, accompanied by the increase of the fluid shear stress within the scaffolds. These results confirm the effects of macropore size on fluid flow stimuli and cell differentiation, and also help optimize the macropore size of HAp scaffolds for bone tissue engineering.
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Affiliation(s)
- Feng Shi
- Collaboration Innovation Center for Tissue Repair Material Engineering Technology, College of Life Science, China West Normal University, No.1 Shida Road, Nanchong, Sichuan 637002, China.,Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, No.97 Renmin South Road, Nanchong, Sichuan 637000, China.,College of Medicine, Southwest Jiaotong University, No.111 North 1st Section of Second Ring Road, Chengdu, Sichuan 610031, China
| | - Dongqin Xiao
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, No.97 Renmin South Road, Nanchong, Sichuan 637000, China
| | - Chengdong Zhang
- Research Institute of Tissue Engineering and Stem Cells, Nanchong Central Hospital, the Second Clinical College of North Sichuan Medical College, No.97 Renmin South Road, Nanchong, Sichuan 637000, China.,College of Medicine, Southwest Jiaotong University, No.111 North 1st Section of Second Ring Road, Chengdu, Sichuan 610031, China
| | - Wei Zhi
- College of Medicine, Southwest Jiaotong University, No.111 North 1st Section of Second Ring Road, Chengdu, Sichuan 610031, China
| | - Yumei Liu
- Collaboration Innovation Center for Tissue Repair Material Engineering Technology, College of Life Science, China West Normal University, No.1 Shida Road, Nanchong, Sichuan 637002, China.,College of Environmental Science and Engineering, China West Normal University, No.1 Shida Road, Nanchong, Sichuan 637002, China
| | - Jie Weng
- College of Medicine, Southwest Jiaotong University, No.111 North 1st Section of Second Ring Road, Chengdu, Sichuan 610031, China
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Tonelli M, Faralli A, Ridi F, Bonini M. 3D printable magnesium-based cements towards the preparation of bioceramics. J Colloid Interface Sci 2021; 598:24-35. [PMID: 33892441 DOI: 10.1016/j.jcis.2021.04.025] [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: 02/25/2021] [Revised: 03/28/2021] [Accepted: 04/07/2021] [Indexed: 10/21/2022]
Abstract
HYPOTHESIS Among all the materials used so far to replace and repair damaged bone tissues, magnesium silicate bioceramics are one of the most promising, thanks to their biocompatibility, osteoinductive properties and good mechanical stability. EXPERIMENTS Magnesium silicate cement pastes were prepared by hydration of MgO mixed with different SiO2 batches at different Mg/Si molar ratios. Pastes were either moulded or 3D printed to obtain set cements that were then calcined at 1000 °C to produce biologically relevant ceramic materials. Both cements and ceramics were characterized by means of X-ray diffraction, while two selected formulations were thoroughly characterized by means of injectability tests, Raman confocal microscopy, scanning electron microscopy, atomic force microscopy, gas porosimetry, X-ray microtomography and compressive tests. FINDINGS The results show that bioceramic scaffolds, namely forsterite and clinoenstatite, can be effectively obtained by 3D printing MgO/SiO2 cement pastes, paving the way towards important advances in the field of bone tissue engineering.
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Affiliation(s)
- Monica Tonelli
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Andrea Faralli
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Francesca Ridi
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
| | - Massimo Bonini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
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Pei X, Wu L, Lei H, Zhou C, Fan H, Li Z, Zhang B, Sun H, Gui X, Jiang Q, Fan Y, Zhang X. Fabrication of customized Ti6AI4V heterogeneous scaffolds with selective laser melting: Optimization of the architecture for orthopedic implant applications. Acta Biomater 2021; 126:485-495. [PMID: 33766797 DOI: 10.1016/j.actbio.2021.03.040] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 02/08/2023]
Abstract
Orthopedic implants with heterogeneous porous structures were known as ideal bone osteointegration. This research introduced the selective laser melting (SLM), finite element analysis (FEA), and a hydrothermal process (HT) for manufacturing a three-level heterogeneous porous structure. The macroporous structure was designed via CAD and micropores were tuned via laser power regulation. A nano-size layer of hydroxyapatite crystals was coated by an HT process. The mechanical properties were reinforced via a core-shell structure with core reinforcement. The existence of micropores and nano-hydroxyapatite coating enhanced the in vitro proliferation of preosteoblasts and osteogenic cellular behaviors of rBMSCs. Thus, the three-level heterogeneous porous titanium implants could inspire researchers with potential clue of cyto-implant interaction mechanism, therefore building ideal orthopedic implants with accelerated osteointegration. STATEMENT OF SIGNIFICANCE: Porous structures of titanium implants play an important role in bone tissue regeneration; The geometrical environment influence cell behaviour and bone tissue ingrowth in all macro-/micro-/nanoscale. In this study, a novel method to fabricate heterogeneous scaffolds and its macro-/micro-/nanoscopic structures were studied. A CAD model was used to obtain the macroscopic structure and the insufficient laser power was introduced for porous microstructure. Therefore, a layer of nano hydroxyapatite was coated via hydrothermal process. Cytoproliferation and cytodifferentiation results indicated that a integrity of regular/irregular, macro-/micro-/nanoscale porous structure had advance in recruiting stem cells and promoting differentiation. This research is beneficial to the development of bone implants with better bone regeneration ability.
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25
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Three-Dimensional Printing of Hydroxyapatite Composites for Biomedical Application. CRYSTALS 2021. [DOI: 10.3390/cryst11040353] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Hydroxyapatite (HA) and HA-based nanocomposites have been recognized as ideal biomaterials in hard tissue engineering because of their compositional similarity to bioapatite. However, the traditional HA-based nanocomposites fabrication techniques still limit the utilization of HA in bone, cartilage, dental, applications, and other fields. In recent years, three-dimensional (3D) printing has been shown to provide a fast, precise, controllable, and scalable fabrication approach for the synthesis of HA-based scaffolds. This review therefore explores available 3D printing technologies for the preparation of porous HA-based nanocomposites. In the present review, different 3D printed HA-based scaffolds composited with natural polymers and/or synthetic polymers are discussed. Furthermore, the desired properties of HA-based composites via 3D printing such as porosity, mechanical properties, biodegradability, and antibacterial properties are extensively explored. Lastly, the applications and the next generation of HA-based nanocomposites for tissue engineering are discussed.
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26
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Hejazi F, Bagheri-Khoulenjani S, Olov N, Zeini D, Solouk A, Mirzadeh H. Fabrication of nanocomposite/nanofibrous functionally graded biomimetic scaffolds for osteochondral tissue regeneration. J Biomed Mater Res A 2021; 109:1657-1669. [PMID: 33687800 DOI: 10.1002/jbm.a.37161] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 12/24/2022]
Abstract
One of the main challenges in treating osteochondral lesions via tissue engineering approach is providing scaffolds with unique characteristics to mimic the complexity. It has led to application of heterogeneous scaffolds as a potential candidate for engineering of osteochondral tissues, in which graded multilayered-structure should promote bone and cartilage growth. By designing three-dimensional (3D)-nanofibrous scaffolds mimicking the native extracellular matrix's nanoscale structure, cells can grow in controlled conditions and regenerate the damaged tissue. In this study, novel 3D-functionality graded nanofibrous scaffolds composed of five layers based on different compositions containing polycaprolactone(PCL)/gelatin(Gel)/nanohydroxyapatite (nHA) for osteoregeneration and chitosan(Cs)/polyvinylalcohol(PVA) for chondral regeneration are introduced. This scaffold is fabricated by electrospinning technique using spring as collector to create 3D-nanofibrous scaffolds. Fourier-transform infrared spectroscopy, X-ray diffraction, energy dispersive X-ray spectroscopy, scanning electron microscopy, mechanical compression test, porosimetry, and water uptake studies were applied to study each layer's physicochemical properties and whole functionally graded scaffold. Besides, biodegradation and biological studies were done to investigate biological performance of scaffold. Results showed that each layer has a fibrous structure with continuous nanofibers with improved pore size and porosity of novel 3D scaffold (6-13 μm and 90%) compared with two-dimensional (2D) mat (2.2 μm and 19.3%) with higher water uptake capacity (about 100 times of 2D mat). Compression modulus of electrospun scaffold was increased to 78 MPa by adding nHA. The biological studies revealed that the layer designed for osteoregeneration could improve cell proliferation rate in comparison to the layer designed for chondral regeneration. These results showed such structure possesses a promising potential for the treatment of osteochondral defects.
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Affiliation(s)
- Fatemeh Hejazi
- Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran
| | | | - Nafiseh Olov
- Polymer and Color Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Darya Zeini
- Faculty of Medicine, Institute of basic medical sciences, Oslo, Norway
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran
| | - Hamid Mirzadeh
- Polymer and Color Engineering Department, Amirkabir University of Technology, Tehran, Iran
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27
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Montoya C, Du Y, Gianforcaro AL, Orrego S, Yang M, Lelkes PI. On the road to smart biomaterials for bone research: definitions, concepts, advances, and outlook. Bone Res 2021; 9:12. [PMID: 33574225 PMCID: PMC7878740 DOI: 10.1038/s41413-020-00131-z] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 01/31/2023] Open
Abstract
The demand for biomaterials that promote the repair, replacement, or restoration of hard and soft tissues continues to grow as the population ages. Traditionally, smart biomaterials have been thought as those that respond to stimuli. However, the continuous evolution of the field warrants a fresh look at the concept of smartness of biomaterials. This review presents a redefinition of the term "Smart Biomaterial" and discusses recent advances in and applications of smart biomaterials for hard tissue restoration and regeneration. To clarify the use of the term "smart biomaterials", we propose four degrees of smartness according to the level of interaction of the biomaterials with the bio-environment and the biological/cellular responses they elicit, defining these materials as inert, active, responsive, and autonomous. Then, we present an up-to-date survey of applications of smart biomaterials for hard tissues, based on the materials' responses (external and internal stimuli) and their use as immune-modulatory biomaterials. Finally, we discuss the limitations and obstacles to the translation from basic research (bench) to clinical utilization that is required for the development of clinically relevant applications of these technologies.
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Affiliation(s)
- Carolina Montoya
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
| | - Yu Du
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Guangdong Provincial Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Affiliated Stomatological Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Anthony L Gianforcaro
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Santiago Orrego
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Maobin Yang
- Department of Oral Health Sciences, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA
| | - Peter I Lelkes
- Department of Endodontology, Kornberg School of Dentistry, Temple University, Philadelphia, PA, 19140, USA.
- Bioengineering Department, College of Engineering, Temple University, Philadelphia, PA, 19122, USA.
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28
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Zhou C, Wang K, Sun Y, Wang Q, Jiang Q, Liang J, Pei X, Zhang B, Fan Y, Zhang X. Biofabrication (3D Bioprinting) Laboratory at Sichuan University. Biodes Manuf 2021. [DOI: 10.1007/s42242-020-00115-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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29
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Attarilar S, Ebrahimi M, Djavanroodi F, Fu Y, Wang L, Yang J. 3D Printing Technologies in Metallic Implants: A Thematic Review on the Techniques and Procedures. Int J Bioprint 2020; 7:306. [PMID: 33585711 PMCID: PMC7875061 DOI: 10.18063/ijb.v7i1.306] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/16/2020] [Indexed: 12/25/2022] Open
Abstract
Additive manufacturing (AM) is among the most attractive methods to produce implants, the processes are very swift and it can be precisely controlled to meet patient’s requirement since they can be produced in exact shape, dimension, and even texture of different living tissues. Until now, lots of methods have emerged and used in this field with diverse characteristics. This review aims to comprehensively discuss 3D printing (3DP) technologies to manufacture metallic implants, especially on techniques and procedures. Various technologies based on their main properties are categorized, the effecting parameters are introduced, and the history of AM technology is briefly analyzed. Subsequently, the utilization of these AM-manufactured components in medicine along with their effectual variables is discussed, and special attention is paid on to the production of porous scaffolds, taking pore size, density, etc., into consideration. Finally, 3DP of the popular metallic systems in medical applications such as titanium, Ti6Al4V, cobalt-chromium alloys, and shape memory alloys are studied. In general, AM manufactured implants need to comply with important requirements such as biocompatibility, suitable mechanical properties (strength and elastic modulus), surface conditions, custom-built designs, fast production, etc. This review aims to introduce the AM technologies in implant applications and find new ways to design more sophisticated methods and compatible implants that mimic the desired tissue functions.
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Affiliation(s)
- Shokouh Attarilar
- Department of Pediatric Orthopaedics, Xinhua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.,State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Mahmoud Ebrahimi
- National Engineering Research Center of Light Alloy Net Forming, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Faramarz Djavanroodi
- Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, KSA.,Department of Mechanical Engineering, Imperial College London, London, UK
| | - Yuanfei Fu
- Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Liqiang Wang
- State Key Laboratory of Metal Matrix Composites, School of Material Science and Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Junlin Yang
- Department of Pediatric Orthopaedics, Xinhua Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
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30
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Assisted 3D printing of microneedle patches for minimally invasive glucose control in diabetes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111299. [DOI: 10.1016/j.msec.2020.111299] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/29/2020] [Accepted: 07/08/2020] [Indexed: 12/21/2022]
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31
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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: 45] [Impact Index Per Article: 11.3] [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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32
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Xing F, Zhou C, Hui D, Du C, Wu L, Wang L, Wang W, Pu X, Gu L, Liu L, Xiang Z, Zhang X. Hyaluronic acid as a bioactive component for bone tissue regeneration: Fabrication, modification, properties, and biological functions. NANOTECHNOLOGY REVIEWS 2020. [DOI: 10.1515/ntrev-2020-0084] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
Hyaluronic acid (HA) is widely distributed in the human body, and it is heavily involved in many physiological functions such as tissue hydration, wound repair, and cell migration. In recent years, HA and its derivatives have been widely used as advanced bioactive polymers for bone regeneration. Many medical products containing HA have been developed because this natural polymer has been proven to be nontoxic, noninflammatory, biodegradable, and biocompatible. Moreover, HA-based composite scaffolds have shown good potential for promoting osteogenesis and mineralization. Recently, many HA-based biomaterials have been fabricated for bone regeneration by combining with electrospinning and 3D printing technology. In this review, the polymer structures, processing, properties, and applications in bone tissue engineering are summarized. The challenges and prospects of HA polymers are also discussed.
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Affiliation(s)
- Fei Xing
- Department of Orthopaedics, West China Hospital, Sichuan University , 610041 , Chengdu , China
| | - Changchun Zhou
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
- College of Biomedical Engineering, Sichuan University , 610064 , Chengdu , China
| | - Didi Hui
- Innovatus Oral Cosmetic & Surgical Institute , Norman , OK, 73069 , United States of America
| | - Colin Du
- Innovatus Oral Cosmetic & Surgical Institute , Norman , OK, 73069 , United States of America
| | - Lina Wu
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
- College of Biomedical Engineering, Sichuan University , 610064 , Chengdu , China
| | - Linnan Wang
- Department of Orthopaedics, West China Hospital, Sichuan University , 610041 , Chengdu , China
| | - Wenzhao Wang
- Department of Orthopaedics, West China Hospital, Sichuan University , 610041 , Chengdu , China
| | - Xiaobing Pu
- Department of Orthopedics Medical Center, West China School of Public Health and West China Fourth Hospital, Sichuan University , Chengdu , Sichuan , China
| | - Linxia Gu
- Department of Biomedical and Chemical Engineering and Sciences, College of Engineering & Science, Florida Institute of Technology , Melbourne , FL, 32901 , United States of America
| | - Lei Liu
- Department of Orthopaedics, West China Hospital, Sichuan University , 610041 , Chengdu , China
| | - Zhou Xiang
- Department of Orthopaedics, West China Hospital, Sichuan University , 610041 , Chengdu , China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
- College of Biomedical Engineering, Sichuan University , 610064 , Chengdu , China
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33
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Chung JJ, Im H, Kim SH, Park JW, Jung Y. Toward Biomimetic Scaffolds for Tissue Engineering: 3D Printing Techniques in Regenerative Medicine. Front Bioeng Biotechnol 2020; 8:586406. [PMID: 33251199 PMCID: PMC7671964 DOI: 10.3389/fbioe.2020.586406] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/05/2020] [Indexed: 12/21/2022] Open
Abstract
Three-dimensional (3D) printing technology allows fabricating complex and precise structures by stacking materials layer by layer. The fabrication method has a strong potential in the regenerative medicine field to produce customizable and defect-fillable scaffolds for tissue regeneration. Plus, biocompatible materials, bioactive molecules, and cells can be printed together or separately to enhance scaffolds, which can save patients who suffer from shortage of transplantable organs. There are various 3D printing techniques that depend on the types of materials, or inks, used. Here, different types of organs (bone, cartilage, heart valve, liver, and skin) that are aided by 3D printed scaffolds and printing methods that are applied in the biomedical fields are reviewed.
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Affiliation(s)
- Justin J. Chung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
| | - Heejung Im
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
| | - Soo Hyun Kim
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, South Korea
| | - Jong Woong Park
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, South Korea
| | - Youngmee Jung
- Center for Biomaterials, Korea Institute of Science and Technology, Seoul, South Korea
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, South Korea
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34
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Cun X, Hosta-Rigau L. Topography: A Biophysical Approach to Direct the Fate of Mesenchymal Stem Cells in Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2070. [PMID: 33092104 PMCID: PMC7590059 DOI: 10.3390/nano10102070] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/16/2020] [Accepted: 10/16/2020] [Indexed: 12/17/2022]
Abstract
Tissue engineering is a promising strategy to treat tissue and organ loss or damage caused by injury or disease. During the past two decades, mesenchymal stem cells (MSCs) have attracted a tremendous amount of interest in tissue engineering due to their multipotency and self-renewal ability. MSCs are also the most multipotent stem cells in the human adult body. However, the application of MSCs in tissue engineering is relatively limited because it is difficult to guide their differentiation toward a specific cell lineage by using traditional biochemical factors. Besides biochemical factors, the differentiation of MSCs also influenced by biophysical cues. To this end, much effort has been devoted to directing the cell lineage decisions of MSCs through adjusting the biophysical properties of biomaterials. The surface topography of the biomaterial-based scaffold can modulate the proliferation and differentiation of MSCs. Presently, the development of micro- and nano-fabrication techniques has made it possible to control the surface topography of the scaffold precisely. In this review, we highlight and discuss how the main topographical features (i.e., roughness, patterns, and porosity) are an efficient approach to control the fate of MSCs and the application of topography in tissue engineering.
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Affiliation(s)
| | - Leticia Hosta-Rigau
- DTU Health Tech, Centre for Nanomedicine and Theranostics, Technical University of Denmark, Nils Koppels Allé, Building 423, 2800 Kgs. Lyngby, Denmark;
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35
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Wu L, Zhou C, Zhang B, Lei H, Wang W, Pu X, Liu L, Liang J, Fan Y, Zhang X. Construction of Biomimetic Natural Wood Hierarchical Porous-Structure Bioceramic with Micro/Nanowhisker Coating to Modulate Cellular Behavior and Osteoinductive Activity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48395-48407. [PMID: 33064436 DOI: 10.1021/acsami.0c15205] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Scaffolds with a biomimetic hierarchy micro/nanoscale pores play an important role in bone tissue regeneration. In this study, multilevel porous calcium phosphate (CaP) bioceramic orthopedic implants were constructed to mimic the micro/nanostructural hierarchy in natural wood. The biomimetic hierarchical porous scaffolds were fabricated by combining three-dimensional (3D) printing technology and hydrothermal treatment. The first-level macropores (∼100-600 μm) for promoting bone tissue ingrowth were precisely designed using a set of 3D printing parameters. The second-level micro/nanoscale pores (∼100-10,000 nm) in the scaffolds were obtained by hydrothermal treatment to promote nutrient/metabolite transportation. Micro- and nanoscale-sized pores in the scaffolds were recognized as in situ formation of whiskers, where the shape, diameter, and length of whiskers were modulated by adjusting the components of calcium phosphate ceramics and hydrothermal treatment parameters. These biomimetic natural wood-like hierarchical structured scaffolds demonstrated unique physical and biological properties. Hydrophilicity and the protein adsorption rate were characterized in these scaffolds. In vitro studies have identified micro/nanowhisker coating as potent modulators of cellular behavior through the onset of focal adhesion formation. In addition, histological results indicate that biomimetic scaffolds with porous natural wood hierarchical pores exhibited good osteoinductive activity. In conclusion, these findings combined suggested that micro/nanowhisker coating is a critical factor to modulate cellular behavior and osteoinductive activity.
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Affiliation(s)
- Lina Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Changchun Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Boqing Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Haoyuan Lei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Wenzhao Wang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaobing Pu
- Department of Orthopedics Medical Center, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, Sichuan, China
| | - Lei Liu
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China.,College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
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Peng W, Peng Z, Tang P, Sun H, Lei H, Li Z, Hui D, Du C, Zhou C, Wang Y. Review of Plastic Surgery Biomaterials and Current Progress in Their 3D Manufacturing Technology. MATERIALS 2020; 13:ma13184108. [PMID: 32947925 PMCID: PMC7560273 DOI: 10.3390/ma13184108] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/11/2020] [Accepted: 09/14/2020] [Indexed: 02/05/2023]
Abstract
Plastic surgery is a broad field, including maxillofacial surgery, skin flaps and grafts, liposuction and body contouring, breast surgery, and facial cosmetic procedures. Due to the requirements of plastic surgery for the biological safety of materials, biomaterials are widely used because of its superior biocompatibility and biodegradability. Currently, there are many kinds of biomaterials clinically used in plastic surgery and their applications are diverse. Moreover, with the rise of three-dimensional printing technology in recent years, the macroscopically more precise and personalized bio-scaffolding materials with microporous structure have made good progress, which is thought to bring new development to biomaterials. Therefore, in this paper, we reviewed the plastic surgery biomaterials and current progress in their 3D manufacturing technology.
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Affiliation(s)
- Wei Peng
- Department of Palliative Care, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China;
- Occupational Health Emergency Key Laboratory of West China Fourth Hospital, Sichuan University, Chengdu 610041, China
| | - Zhiyu Peng
- Department of Thoracic Surgery, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041, China;
| | - Pei Tang
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; (P.T.); (Z.L.)
| | - Huan Sun
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; (H.S.); (H.L.); (C.Z.)
| | - Haoyuan Lei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; (H.S.); (H.L.); (C.Z.)
| | - Zhengyong Li
- Department of Burn and Plastic Surgery, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; (P.T.); (Z.L.)
| | - Didi Hui
- Innovatus Oral Cosmetic & Surgical Institute, Norman, OK 73069, USA; (D.H.); (C.D.)
| | - Colin Du
- Innovatus Oral Cosmetic & Surgical Institute, Norman, OK 73069, USA; (D.H.); (C.D.)
| | - Changchun Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China; (H.S.); (H.L.); (C.Z.)
| | - Yongwei Wang
- Department of Palliative Care, West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu 610041, China;
- Occupational Health Emergency Key Laboratory of West China Fourth Hospital, Sichuan University, Chengdu 610041, China
- Correspondence:
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Photocrosslinkable nanocomposite ink for printing strong, biodegradable and bioactive bone graft. Biomaterials 2020; 263:120378. [PMID: 32932140 DOI: 10.1016/j.biomaterials.2020.120378] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/25/2020] [Accepted: 09/07/2020] [Indexed: 01/29/2023]
Abstract
3D printing is known as a cost-effective technique that shows huge potential in fabrication of graft substitutes for bone tissue regeneration. However, the tradeoff between 3D printability, mechanical strength and bioactivity of the printed materials (i.e., inks) remains a challenge. In this work, we present a novel photocrosslinkable nanocomposite ink composed of tri-block poly (lactide-co-propylene glycol-co-lactide) dimethacrylate (PmLnDMA, m and n respectively represent the unit length of propylene glycol and lactide) and hydroxyethyl methacrylate (HEMA)-functionalized hydroxyapatite nanoparticles (nHAMA). The reactive HEMA-conjugated nHAMA, is designed to covalently crosslink with the surrounding polymer matrix to further increase the interfacial bonding between them. We find that the nHAMA can rapidly interact with PmLnDMA upon light exposure within 140 s and form an inorganic-organic co-crosslinked nanocomposite network, further enhancing the nanofiller-matrix interfacial compatibility. Notably, our nanocomposites possess significantly improved mechanical performances compared to the polymer, with compressive modulus increasing by nearly 10 times (from ⁓40 to ⁓400 MPa). Moreover, thanks to the low exothermic heat generation (<37 °C) during photocrosslinking, our nanocomposite ink enables facile encapsulation and long-term release of heat-labile biomolecules like bone morphogenic protein-2 (BMP-2). Furthermore, it demonstrates a readily tunable rheological property, wettability, degradation, and printability as a 3D bone scaffold. Together with its superior osteogenic ability both in vitro and in vivo, we envision that our nanocomposite ink holds great promise in 3D printing of bone grafts.
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Aldemir Dikici B, Claeyssens F. Basic Principles of Emulsion Templating and Its Use as an Emerging Manufacturing Method of Tissue Engineering Scaffolds. Front Bioeng Biotechnol 2020; 8:875. [PMID: 32903473 PMCID: PMC7435020 DOI: 10.3389/fbioe.2020.00875] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/08/2020] [Indexed: 12/20/2022] Open
Abstract
Tissue engineering (TE) aims to regenerate critical size defects, which cannot heal naturally, by using highly porous matrices called TE scaffolds made of biocompatible and biodegradable materials. There are various manufacturing techniques commonly used to fabricate TE scaffolds. However, in most cases, they do not provide materials with a highly interconnected pore design. Thus, emulsion templating is a promising and convenient route for the fabrication of matrices with up to 99% porosity and high interconnectivity. These matrices have been used for various application areas for decades. Although this polymer structuring technique is older than TE itself, the use of polymerised internal phase emulsions (PolyHIPEs) in TE is relatively new compared to other scaffold manufacturing techniques. It is likely because it requires a multidisciplinary background including materials science, chemistry and TE although producing emulsion templated scaffolds is practically simple. To date, a number of excellent reviews on emulsion templating have been published by the pioneers in this field in order to explain the chemistry behind this technique and potential areas of use of the emulsion templated structures. This particular review focusses on the key points of how emulsion templated scaffolds can be fabricated for different TE applications. Accordingly, we first explain the basics of emulsion templating and characteristics of PolyHIPE scaffolds. Then, we discuss the role of each ingredient in the emulsion and the impact of the compositional changes and process conditions on the characteristics of PolyHIPEs. Afterward, current fabrication methods of biocompatible PolyHIPE scaffolds and polymerisation routes are detailed, and the functionalisation strategies that can be used to improve the biological activity of PolyHIPE scaffolds are discussed. Finally, the applications of PolyHIPEs on soft and hard TE as well as in vitro models and drug delivery in the literature are summarised.
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Affiliation(s)
- Betül Aldemir Dikici
- Department of Materials Science and Engineering, Kroto Research Institute, The University of Sheffield, Sheffield, United Kingdom
- Department of Materials Science and Engineering, INSIGNEO Institute for In Silico Medicine, The University of Sheffield, Sheffield, United Kingdom
| | - Frederik Claeyssens
- Department of Materials Science and Engineering, Kroto Research Institute, The University of Sheffield, Sheffield, United Kingdom
- Department of Materials Science and Engineering, INSIGNEO Institute for In Silico Medicine, The University of Sheffield, Sheffield, United Kingdom
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Pan Q, Gao C, Wang Y, Wang Y, Mao C, Wang Q, Economidou SN, Douroumis D, Wen F, Tan LP, Li H. Investigation of bone reconstruction using an attenuated immunogenicity xenogenic composite scaffold fabricated by 3D printing. Biodes Manuf 2020. [DOI: 10.1007/s42242-020-00086-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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40
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Hu C, Wu L, Zhou C, Sun H, Gao P, Xu X, Zhang C, Liang J, Fan Y, Sun J, Zhou X, Zhang X. Berberine/Ag nanoparticle embedded biomimetic calcium phosphate scaffolds for enhancing antibacterial function. NANOTECHNOLOGY REVIEWS 2020. [DOI: 10.1515/ntrev-2020-0046] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Abstract
In the past decade, biomimetic calcium phosphate (CaP) ceramics have been considered as practicable grafts and biomaterial substitutes in repairing jaw bone defect after tumor resection or traffic accident. Nowadays, increasing incidence of biomedical material-associated infection has raised a concern when applying these materials. In this work, a new porous CaP scaffold with antibacterial coating was proposed. This biomimetic scaffold was composited with berberine (BBR), Ag nanoparticles (nAg), and silk fibroin (SF). The microstructures and phase composition of the scaffolds were analyzed. The cytocompatibility and osteogenic potential of the prepared samples were evaluated in vitro. The scaffolds held hierarchical structure: the first-level porous CaP ceramic with micron pores ranged from 250 to 600 µm; the second-level spongy-like structure with abundant capillary pores ranged from 500 nm to 10 µm; and the third-level structure was achieved by filling BBR, nAg, and SF gel coatings into the above porous structures. The experimental results showed that the antimicrobial capability of single BBR coating is inconspicuous. However, the introduction of nAg could significantly promote the antibacterial effect of scaffolds. At the same time, such scaffolds showed improved osteoinductivity. This new biomimetic CaP scaffold with antibacterial and osteoinductive properties may be a promising candidate for bone tissue engineering.
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Affiliation(s)
- Cheng Hu
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu 610041 , China
| | - Lina Wu
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
| | - Changchun Zhou
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
| | - Huan Sun
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
| | - Peng Gao
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu 610041 , China
| | - Xiujuan Xu
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
| | - Chenxi Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu 610041 , China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
| | - Jianxun Sun
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu 610041 , China
| | - Xuedong Zhou
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University , Chengdu 610041 , China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University , 610064 , Chengdu , China
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Lei L, Wei Y, Wang Z, Han J, Sun J, Chen Y, Yang X, Wu Y, Chen L, Gou Z. Core–Shell Bioactive Ceramic Robocasting: Tuning Component Distribution Beneficial for Highly Efficient Alveolar Bone Regeneration and Repair. ACS Biomater Sci Eng 2020; 6:2376-2387. [PMID: 33455330 DOI: 10.1021/acsbiomaterials.0c00152] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Lihong Lei
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Yingming Wei
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Zhongxiu Wang
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Jiayin Han
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Jianwei Sun
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Yi Chen
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Xianyan Yang
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
| | - Yanmin Wu
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Lili Chen
- Department of Periodontics, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310008, China
| | - Zhongru Gou
- Bio-nanomaterials and Regenerative Medicine Research Division, Zhejiang-California International Nanosystem Institute, Zhejiang University, Hangzhou 310058, China
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42
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Yi T, Zhou C, Ma L, Wu L, Xu X, Gu L, Fan Y, Xian G, Fan H, Zhang X. Direct 3‐D printing of Ti‐6Al‐4V/HA composite porous scaffolds for customized mechanical properties and biological functions. J Tissue Eng Regen Med 2020; 14:486-496. [DOI: 10.1002/term.3013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 12/12/2019] [Accepted: 01/25/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Tao Yi
- School of Mechanical EngineeringSichuan University Chengdu China
| | - Changchun Zhou
- National Engineering Research Center for BiomaterialsSichuan University Chengdu China
| | - Liang Ma
- State Key Laboratory of Fluid Power & Mechatronic Systems, School of Mechanical EngineeringZhejiang University Hangzhou China
| | - Lina Wu
- National Engineering Research Center for BiomaterialsSichuan University Chengdu China
| | - Xiujuan Xu
- National Engineering Research Center for BiomaterialsSichuan University Chengdu China
| | - Linxia Gu
- Department of Mechanical and Materials EngineeringUniversity of Nebraska‐Lincoln Lincoln Nebraska
| | - Yujiang Fan
- National Engineering Research Center for BiomaterialsSichuan University Chengdu China
| | - Guang Xian
- School of Mechanical EngineeringSichuan University Chengdu China
| | - Hongyuan Fan
- School of Mechanical EngineeringSichuan University Chengdu China
| | - Xingdong Zhang
- National Engineering Research Center for BiomaterialsSichuan University Chengdu China
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43
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Wei Y, Zhao D, Cao Q, Wang J, Wu Y, Yuan B, Li X, Chen X, Zhou Y, Yang X, Zhu X, Tu C, Zhang X. Stereolithography-Based Additive Manufacturing of High-Performance Osteoinductive Calcium Phosphate Ceramics by a Digital Light-Processing System. ACS Biomater Sci Eng 2020; 6:1787-1797. [PMID: 33455401 DOI: 10.1021/acsbiomaterials.9b01663] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Yihang Wei
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Dingyun Zhao
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Quanle Cao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Jing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yonghao Wu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Bo Yuan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiangfeng Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Yong Zhou
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
| | - Chongqi Tu
- Department of Orthopaedics, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu 610064, China
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44
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Xing F, Li L, Zhou C, Long C, Wu L, Lei H, Kong Q, Fan Y, Xiang Z, Zhang X. Regulation and Directing Stem Cell Fate by Tissue Engineering Functional Microenvironments: Scaffold Physical and Chemical Cues. Stem Cells Int 2019; 2019:2180925. [PMID: 31949436 PMCID: PMC6948329 DOI: 10.1155/2019/2180925] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/05/2019] [Indexed: 02/05/2023] Open
Abstract
It is well known that stem cells reside within tissue engineering functional microenvironments that physically localize them and direct their stem cell fate. Recent efforts in the development of more complex and engineered scaffold technologies, together with new understanding of stem cell behavior in vitro, have provided a new impetus to study regulation and directing stem cell fate. A variety of tissue engineering technologies have been developed to regulate the fate of stem cells. Traditional methods to change the fate of stem cells are adding growth factors or some signaling pathways. In recent years, many studies have revealed that the geometrical microenvironment played an essential role in regulating the fate of stem cells, and the physical factors of scaffolds including mechanical properties, pore sizes, porosity, surface stiffness, three-dimensional structures, and mechanical stimulation may affect the fate of stem cells. Chemical factors such as cell-adhesive ligands and exogenous growth factors would also regulate the fate of stem cells. Understanding how these physical and chemical cues affect the fate of stem cells is essential for building more complex and controlled scaffolds for directing stem cell fate.
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Affiliation(s)
- Fei Xing
- Department of Orthopaedics, West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, 610041 Sichuan, China
| | - Lang Li
- Department of Pediatric Surgery, West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, 610041 Sichuan, China
| | - Changchun Zhou
- National Engineering Research Center for Biomaterials, Sichuan University, 610064 Chengdu, Sichuan, China
| | - Cheng Long
- Department of Orthopaedics, West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, 610041 Sichuan, China
| | - Lina Wu
- National Engineering Research Center for Biomaterials, Sichuan University, 610064 Chengdu, Sichuan, China
| | - Haoyuan Lei
- National Engineering Research Center for Biomaterials, Sichuan University, 610064 Chengdu, Sichuan, China
| | - Qingquan Kong
- Department of Orthopaedics, West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, 610041 Sichuan, China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, 610064 Chengdu, Sichuan, China
| | - Zhou Xiang
- Department of Orthopaedics, West China Hospital, Sichuan University, No. 37 Guoxue Lane, Chengdu, 610041 Sichuan, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, 610064 Chengdu, Sichuan, China
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45
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Zhang B, Sun H, Wu L, Ma L, Xing F, Kong Q, Fan Y, Zhou C, Zhang X. 3D printing of calcium phosphate bioceramic with tailored biodegradation rate for skull bone tissue reconstruction. Biodes Manuf 2019. [DOI: 10.1007/s42242-019-00046-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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46
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Chen Q, Zou B, Lai Q, Wang Y, Xue R, Xing H, Fu X, Huang C, Yao P. A study on biosafety of HAP ceramic prepared by SLA-3D printing technology directly. J Mech Behav Biomed Mater 2019; 98:327-335. [PMID: 31302582 DOI: 10.1016/j.jmbbm.2019.06.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 06/27/2019] [Accepted: 06/30/2019] [Indexed: 12/20/2022]
Abstract
Hydroxyapatite powder was mixed into photosensitive resin to form complex shape scaffold using SLA-3D printing technology, and then the final entity was obtained successively by debinding and sintering. It is crucial to confirm whether the prepared hydroxyapatite scaffold have the toxic effects after our designed printing, debinding, and sintering processes because the photosensitive resin in the starting printing paste is poisonous to cells. To investigate these issues in details, thermogravimetric analysis (TG), differential scanning calorimetry (DSC), in vitro cytotoxicity test, and implantation pre-experiment in the rabbit parietal were performed, aiming to develop the SLA-3D prepared hydroxyapatite scaffold. Through thermal analysis, it was proved that photosensitive resin would be completely pyrolyzed at temperature ranging from 350 °C to 580 °C, corresponding to a secondary chemical reaction mechanism. Combined with cytotoxicity test results, it is unquestionable that the toxic substances would be totally decomposed after debinding process and a good biocompatible HAP samples could be obtained. The finally prepared HAP samples with micro-holes showed good biosafety in pre-experiment of the rabbit parietal implantation.
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Affiliation(s)
- Qinghua Chen
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Bin Zou
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China.
| | - Qingguo Lai
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China.
| | - Yang Wang
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China
| | - Runqi Xue
- Department of Oral and Maxillofacial Surgery, The Second Hospital of Shandong University, Jinan, 250033, Shandong Province, PR China; Research Center of 3D Printing in Stomatology of Shandong University, PR China
| | - Hongyu Xing
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Xiangsong Fu
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Chuanzhen Huang
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
| | - Peng Yao
- Center for Advanced Jet Engineering Technology (CaJET), School of Mechanical Engineering, Shandong University, Jinan, 250061, PR China; Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Shandong University, Ministry of Education, PR China; National Demonstration Center for Experimental Mechanical Engineering Education (Shandong University), PR China
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47
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Rogowska-Tylman J, Locs J, Salma I, Woźniak B, Pilmane M, Zalite V, Wojnarowicz J, Kędzierska-Sar A, Chudoba T, Szlązak K, Chlanda A, Święszkowski W, Gedanken A, Łojkowski W. In vivo and in vitro study of a novel nanohydroxyapatite sonocoated scaffolds for enhanced bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 99:669-684. [DOI: 10.1016/j.msec.2019.01.084] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Revised: 01/13/2019] [Accepted: 01/14/2019] [Indexed: 12/11/2022]
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48
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Nie W, Gao Y, McCoul DJ, Gillispie GJ, Zhang Y, Liang L, He C. Rapid mineralization of hierarchical poly(l-lactic acid)/poly(ε-caprolactone) nanofibrous scaffolds by electrodeposition for bone regeneration. Int J Nanomedicine 2019; 14:3929-3941. [PMID: 31213809 PMCID: PMC6549790 DOI: 10.2147/ijn.s205194] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 04/16/2019] [Indexed: 11/23/2022] Open
Abstract
Introduction: Hierarchical nanofibrous scaffolds are emerging as a promising bone repair material due to their high cell adhesion activity and nutrient permeability. However, the existing method for hierarchical nanofibrous scaffolds fabrication is complicated and not perfectly suitable for further biomedical application in view of both structure and function. In this study, we constructed a hierarchical nanofibrous poly (l-lactic acid)/poly(ε-caprolactone) (PLLA/PCL) scaffold and further evaluated its bone healing ability. Methods: The hierarchical PLLA/PCL nanofibrous scaffold (PLLA/PCL) was prepared by one-pot TIPS and then rapidly mineralized at room temperature by an electrochemical deposition technique. After electrode-positioning at 2 V for 2 hrs, a scaffold coated with hydroxyapatite (M-PLLA/PCL) could be obtained. Results: The pore size of the M-PLLA/PCL scaffold was hierarchically distributed so as to match the biophysical structure for osteoblast growth. The M-PLLA/PCL scaffold showed better cell proliferation and osteogenesis activity compared to the PLLA/PCL scaffold. Further in vivo bone repair studies indicated that the M-PLLA/PCL scaffold could accelerate defect healing in 12 weeks. Conclusion: The results of this study implied that the as-prepared hydroxyapatite coated hierarchical PLLA/PCL nanofibrous scaffolds could be developed as a promising material for efficient bone tissue repair after carefully tuning the TIPS and electrodeposition parameters.
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Affiliation(s)
- Wei Nie
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai201620, People’s Republic of China
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston Salem, NC27103, USA
| | - Yiming Gao
- Department of Plastic and Cosmetic Surgery, Shanghai Traditional Chinese Medicine University Affiliated Shuguang Hospital, Shanghai201203, People’s Republic of China
| | - David James McCoul
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston Salem, NC27103, USA
| | - Gregory James Gillispie
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston Salem, NC27103, USA
| | - YanZhong Zhang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai201620, People’s Republic of China
| | - Li Liang
- Department of Respiratory Medicine, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai201999, People’s Republic of China
| | - ChuangLong He
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai201620, People’s Republic of China
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Fabrication and Application of Novel Porous Scaffold in Situ-Loaded Graphene Oxide and Osteogenic Peptide by Cryogenic 3D Printing for Repairing Critical-Sized Bone Defect. Molecules 2019; 24:molecules24091669. [PMID: 31035401 PMCID: PMC6539066 DOI: 10.3390/molecules24091669] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 04/15/2019] [Accepted: 04/26/2019] [Indexed: 01/09/2023] Open
Abstract
Osteogenic peptides have been reported as highly effective in directing mesenchymal stem cell osteogenic differentiation in vitro and bone formation in vivo. Therefore, developing novel biomaterials for the controlled delivery of osteogenic peptides in scaffolds without lowering the peptide’s biological activity is highly desirable. To repair a critical-sized bone defect to efficiently achieve personalized bone regeneration, a novel bioactive poly(lactic-co-glycolic acid) (PLGA)/β-tricalcium phosphate (β-TCP) composite scaffold, in which graphene oxide (GO) and bone morphogenetic protein (BMP)-2-like peptide were loaded in situ (PTG/P), was produced by an original cryogenic 3D printing method. The scaffolds were mechanically comparable to human cancellous bone and hierarchically porous. The incorporation of GO further improved the scaffold wettability and mechanical strength. The in situ loaded peptides retained a high level of biological activity for an extended time, and the loading of GO in the scaffold further tuned the peptide release so that it was more sustained. Our in vitro study showed that the PTG/P scaffold promoted rat bone marrow-derived mesenchymal stem cell ingrowth into the scaffold and enhanced osteogenic differentiation. Moreover, the in vivo study indicated that the novel PTG/P scaffold with sustained delivery of the peptide could significantly promote bone regeneration in a critical bone defect. Thus, the novel bioactive PTG/P scaffold with a customized shape, improved mechanical strength, sustainable peptide delivery, and excellent osteogenic ability has great potential in bone tissue regeneration.
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Li Y, Liao C, Tjong SC. Synthetic Biodegradable Aliphatic Polyester Nanocomposites Reinforced with Nanohydroxyapatite and/or Graphene Oxide for Bone Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E590. [PMID: 30974820 PMCID: PMC6523566 DOI: 10.3390/nano9040590] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/22/2019] [Accepted: 04/03/2019] [Indexed: 12/27/2022]
Abstract
This paper provides review updates on the current development of bionanocomposites with polymeric matrices consisting of synthetic biodegradable aliphatic polyesters reinforced with nanohydroxyaptite (nHA) and/or graphene oxide (GO) nanofillers for bone tissue engineering applications. Biodegradable aliphatic polyesters include poly(lactic acid) (PLA), polycaprolactone (PCL) and copolymers of PLA-PGA (PLGA). Those bionanocomposites have been explored for making 3D porous scaffolds for the repair of bone defects since nHA and GO enhance their bioactivity and biocompatibility by promoting biomineralization, bone cell adhesion, proliferation and differentiation, thus facilitating new bone tissue formation upon implantation. The incorporation of nHA or GO into aliphatic polyester scaffolds also improves their mechanical strength greatly, especially hybrid GO/nHA nanofilllers. Those mechanically strong nanocomposite scaffolds can support and promote cell attachment for tissue growth. Porous scaffolds fabricated from conventional porogen leaching, and thermally induced phase separation have many drawbacks inducing the use of organic solvents, poor control of pore shape and pore interconnectivity, while electrospinning mats exhibit small pores that limit cell infiltration and tissue ingrowth. Recent advancement of 3D additive manufacturing allows the production of aliphatic polyester nanocomposite scaffolds with precisely controlled pore geometries and large pores for the cell attachment, growth, and differentiation in vitro, and the new bone formation in vivo.
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Affiliation(s)
- Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China.
| | - Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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