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Luo W, Liu H, Wang C, Qin Y, Liu Q, Wang J. Bioprinting of Human Musculoskeletal Interface. ADVANCED ENGINEERING MATERIALS 2019; 21:1900019. [DOI: 10.1002/adem.201900019] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Indexed: 07/28/2023]
Affiliation(s)
- Wenbin Luo
- Department of OrthopedicsThe Second Hospital of Jilin UniversityChangchun130041P. R. China
| | - He Liu
- Department of OrthopedicsThe Second Hospital of Jilin UniversityChangchun130041P. R. China
| | - Chenyu Wang
- Department of OrthopedicsThe Second Hospital of Jilin UniversityChangchun130041P. R. China
- Hallym University1Hallymdaehak‐gilChuncheonGangwon‐do200‐702Korea
| | - Yanguo Qin
- Department of OrthopedicsThe Second Hospital of Jilin UniversityChangchun130041P. R. China
| | - Qingping Liu
- Key Laboratory of Bionic Engineering (Ministry of Education)Jilin UniversityChangchun130022P. R. China
| | - Jincheng Wang
- Department of OrthopedicsThe Second Hospital of Jilin UniversityChangchun130041P. R. China
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152
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Zheng X, Huang J, Lin J, Yang D, Xu T, Chen D, Zan X, Wu A. 3D bioprinting in orthopedics translational research. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1172-1187. [PMID: 31124402 DOI: 10.1080/09205063.2019.1623989] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- XuanQi Zheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - JinFeng Huang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - JiaLiang Lin
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - DeJun Yang
- Wenzhou Institute of Biomaterials and Engineering, CNITECH, Chinese Academy of Sciences, Wenzhou, China
| | - TianZhen Xu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Dong Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Xingjie Zan
- Wenzhou Institute of Biomaterials and Engineering, CNITECH, Chinese Academy of Sciences, Wenzhou, China
| | - AiMin Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical University, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
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153
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Cidonio G, Alcala-Orozco CR, Lim KS, Glinka M, Mutreja I, Kim YH, Dawson JI, Woodfield TBF, Oreffo ROC. Osteogenic and angiogenic tissue formation in high fidelity nanocomposite Laponite-gelatin bioinks. Biofabrication 2019; 11:035027. [DOI: 10.1088/1758-5090/ab19fd] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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154
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Hassan MN, Yassin MA, Suliman S, Lie SA, Gjengedal H, Mustafa K. The bone regeneration capacity of 3D-printed templates in calvarial defect models: A systematic review and meta-analysis. Acta Biomater 2019; 91:1-23. [PMID: 30980937 DOI: 10.1016/j.actbio.2019.04.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 12/23/2022]
Abstract
3D-printed templates are being used for bone tissue regeneration (BTR) as temporary guides. In the current review, we analyze the factors considered in producing potentially bioresorbable/degradable 3D-printed templates and their influence on BTR in calvarial bone defect (CBD) animal models. In addition, a meta-analysis was done to compare the achieved BTR for each type of template material (polymer, ceramic or composites). Database collection was completed by January 2018, and the inclusion criteria were all titles and keywords combining 3D printing and BTR in CBD models. Clinical trials and poorly-documented in vivo studies were excluded from this study. A total of 45 relevant studies were finally included and reviewed, and an additional check list was followed before inclusion in the meta-analysis, where material type, porosity %, and the regenerated bone area were collected and analyzed statistically. Overall, the capacity of the printed templates to support BTR was found to depend in large part on the amount of available space (porosity %) provided by the printed templates. Printed ceramic and composite templates showed the best BTR capacity, and the optimum printed template structure was found to have total porosity >50% with a pore diameter between 300 and 400 µm. Additional features and engineered macro-channels within the printed templates increased BTR capacity at long time points (12 weeks). Although the size of bone defects in rabbits was larger than in rats, BTR was greater in rabbits (almost double) at all time points and for all materials used. STATEMENT OF SIGNIFICANCE: In the present study, we reviewed the factors considered in producing degradable 3D-printed templates and their influence on bone tissue regeneration (BTR) in calvarial bone defects through the last 15 years. A meta-analysis was applied on the collected data to quantify and analyze BTR related to each type of template material. The concluded data states the importance of 3D-printed templates for BTR and indicates the ideal design required for an effective clinical translation. The evidence-based guidelines for the best BTR capacity endorse the use of printed composite and ceramic templates with total porosity >50%, pore diameter between 300 and 400 µm, and added engineered macro-channels within the printed templates.
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155
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Huang YH, Jakus AE, Jordan SW, Dumanian Z, Parker K, Zhao L, Patel PK, Shah RN. Three-Dimensionally Printed Hyperelastic Bone Scaffolds Accelerate Bone Regeneration in Critical-Size Calvarial Bone Defects. Plast Reconstr Surg 2019; 143:1397-1407. [PMID: 31033821 DOI: 10.1097/prs.0000000000005530] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND Autologous bone grafts remain the gold standard for craniofacial reconstruction despite limitations of donor-site availability and morbidity. A myriad of commercial bone substitutes and allografts are available, yet no product has gained widespread use because of inferior clinical outcomes. The ideal bone substitute is both osteoconductive and osteoinductive. Craniofacial reconstruction often involves irregular three-dimensional defects, which may benefit from malleable or customizable substrates. "Hyperelastic Bone" is a three-dimensionally printed synthetic scaffold, composed of 90% by weight hydroxyapatite and 10% by weight poly(lactic-co-glycolic acid), with inherent bioactivity and porosity to allow for tissue integration. This study examines the capacity of Hyperelastic Bone for bone regeneration in a critical-size calvarial defect. METHODS Eight-millimeter calvarial defects in adult male Sprague-Dawley rats were treated with three-dimensionally printed Hyperelastic Bone, three-dimensionally printed Fluffy-poly(lactic-co-glycolic acid) without hydroxyapatite, autologous bone (positive control), or left untreated (negative control). Animals were euthanized at 8 or 12 weeks postoperatively and specimens were analyzed for new bone formation by cone beam computed tomography, micro-computed tomography, and histology. RESULTS The mineralized bone volume-to-total tissue volume fractions for the Hyperelastic Bone cohort at 8 and 12 weeks were 74.2 percent and 64.5 percent of positive control bone volume/total tissue, respectively (p = 0.04). Fluffy-poly(lactic-co-glycolic acid) demonstrated little bone formation, similar to the negative control. Histologic analysis of Hyperelastic Bone scaffolds revealed fibrous tissue at 8 weeks, and new bone formation surrounding the scaffold struts by 12 weeks. CONCLUSION Findings from our study suggest that Hyperelastic Bone grafts are effective for bone regeneration, with significant potential for clinical translation.
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Affiliation(s)
- Yu-Hui Huang
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Adam E Jakus
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Sumanas W Jordan
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Zari Dumanian
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Kelly Parker
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Linping Zhao
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Pravin K Patel
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
| | - Ramille N Shah
- From Shriners Hospitals for Children-Chicago; The Craniofacial Center, Department of Surgery, Division of Plastic and Reconstructive Surgery, University of Illinois Health; and the Department of Materials Science and Engineering, the Simpson Querrey Institute for BioNanotechnology, the Department of Surgery, Division of Plastic and Reconstructive Surgery, the Department of Biomedical Engineering, and the Division of Organ Transplantation, Department of Surgery, Northwestern University
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156
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Reiser A, Lindén M, Rohner P, Marchand A, Galinski H, Sologubenko AS, Wheeler JM, Zenobi R, Poulikakos D, Spolenak R. Multi-metal electrohydrodynamic redox 3D printing at the submicron scale. Nat Commun 2019; 10:1853. [PMID: 31015443 PMCID: PMC6479051 DOI: 10.1038/s41467-019-09827-1] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Accepted: 03/17/2019] [Indexed: 12/27/2022] Open
Abstract
An extensive range of metals can be dissolved and re-deposited in liquid solvents using electrochemistry. We harness this concept for additive manufacturing, demonstrating the focused electrohydrodynamic ejection of metal ions dissolved from sacrificial anodes and their subsequent reduction to elemental metals on the substrate. This technique, termed electrohydrodynamic redox printing (EHD-RP), enables the direct, ink-free fabrication of polycrystalline multi-metal 3D structures without the need for post-print processing. On-the-fly switching and mixing of two metals printed from a single multichannel nozzle facilitates a chemical feature size of <400 nm with a spatial resolution of 250 nm at printing speeds of up to 10 voxels per second. As shown, the additive control of the chemical architecture of materials provided by EHD-RP unlocks the synthesis of 3D bi-metal structures with programmed local properties and opens new avenues for the direct fabrication of chemically architected materials and devices.
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Affiliation(s)
- Alain Reiser
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Marcus Lindén
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Patrik Rohner
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092, Zürich, Switzerland
| | - Adrien Marchand
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Henning Galinski
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Alla S Sologubenko
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Jeffrey M Wheeler
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Renato Zenobi
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, CH-8093, Zürich, Switzerland
| | - Dimos Poulikakos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zürich, CH-8092, Zürich, Switzerland
| | - Ralph Spolenak
- Laboratory for Nanometallurgy, Department of Materials, ETH Zürich, CH-8093, Zürich, Switzerland.
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157
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Almouemen N, Kelly HM, O'Leary C. Tissue Engineering: Understanding the Role of Biomaterials and Biophysical Forces on Cell Functionality Through Computational and Structural Biotechnology Analytical Methods. Comput Struct Biotechnol J 2019; 17:591-598. [PMID: 31080565 PMCID: PMC6502738 DOI: 10.1016/j.csbj.2019.04.008] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 03/26/2019] [Accepted: 04/13/2019] [Indexed: 12/13/2022] Open
Abstract
Within the past 25 years, tissue engineering (TE) has grown enormously as a science and as an industry. Although classically concerned with the recapitulation of tissue and organ formation in our body for regenerative medicine, the evolution of TE research is intertwined with progress in other fields through the examination of cell function and behaviour in isolated biomimetic microenvironments. As such, TE applications now extend beyond the field of tissue regeneration research, operating as a platform for modifiable, physiologically-representative in vitro models with the potential to improve the translation of novel therapeutics into the clinic through a more informed understanding of the relevant molecular biology, structural biology, anatomy, and physiology. By virtue of their biomimicry, TE constructs incorporate features of extracellular macrostructure, molecular adhesive moieties, and biomechanical properties, converging with computational and structural biotechnology advances. Accordingly, this mini-review serves to contextualise TE for the computational and structural biotechnology reader and provides an outlook on how the disciplines overlap with respect to relevant advanced analytical applications.
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Affiliation(s)
- Nour Almouemen
- School of Pharmacy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
- Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland
| | - Helena M. Kelly
- School of Pharmacy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
- Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
| | - Cian O'Leary
- School of Pharmacy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
- Tissue Engineering Research Group, Dept. of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephen's Green, Dublin 2, Ireland
- Advanced Materials and Bioengineering Research (AMBER) Centre, Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland
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158
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Ashammakhi N, Hasan A, Kaarela O, Byambaa B, Sheikhi A, Gaharwar AK, Khademhosseini A. Advancing Frontiers in Bone Bioprinting. Adv Healthc Mater 2019; 8:e1801048. [PMID: 30734530 DOI: 10.1002/adhm.201801048] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/26/2018] [Indexed: 12/20/2022]
Abstract
Three-dimensional (3D) bioprinting of cell-laden biomaterials is used to fabricate constructs that can mimic the structure of native tissues. The main techniques used for 3D bioprinting include microextrusion, inkjet, and laser-assisted bioprinting. Bioinks used for bone bioprinting include hydrogels loaded with bioactive ceramics, cells, and growth factors. In this review, a critical overview of the recent literature on various types of bioinks used for bone bioprinting is presented. Major challenges, such as the vascularity, clinically relevant size, and mechanical properties of 3D printed structures, that need to be addressed to successfully use the technology in clinical settings, are discussed. Emerging approaches to solve these problems are reviewed, and future strategies to design customized 3D printed structures are proposed.
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Affiliation(s)
- Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California – Los Angeles Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California – Los Angeles Los Angeles CA 90095 USA
- Department of BioengineeringUniversity of California – Los Angeles Los Angeles CA 90095 USA
- Division of Plastic SurgeryDepartment of SurgeryOulu Univesity Hospital Oulu FI‐90014 Finland
| | - Anwarul Hasan
- Department of Mechanical and Industrial EngineeringCollege of EngineeringQatar University Doha 2713 Qatar
- Biomedical Research CenterQatar University Doha 2713 Qatar
| | - Outi Kaarela
- Division of Plastic SurgeryDepartment of SurgeryOulu Univesity Hospital Oulu FI‐90014 Finland
| | - Batzaya Byambaa
- Center for Biomedical EngineeringDepartment of MedicineBrigham and Women's HospitalHarvard Medical School Cambridge MA 02115 USA
- Harvard‐MIT Division of Health Sciences and TechnologyMassachusetts Institute of Technology Cambridge MA 02139 USA
| | - Amir Sheikhi
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California – Los Angeles Los Angeles CA 90095 USA
| | - Akhilesh K. Gaharwar
- Department of Biomedical EngineeringDepartment of Materials Science and Engineeringand Center for Remote Health and TechnologiesTexas A&M University College Station TX 77841 USA
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C‐MIT)University of California – Los Angeles Los Angeles CA 90095 USA
- California NanoSystems Institute (CNSI)University of California – Los Angeles Los Angeles CA 90095 USA
- Department of BioengineeringUniversity of California – Los Angeles Los Angeles CA 90095 USA
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159
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Li JJ, Dunstan CR, Entezari A, Li Q, Steck R, Saifzadeh S, Sadeghpour A, Field JR, Akey A, Vielreicher M, Friedrich O, Roohani‐Esfahani S, Zreiqat H. A Novel Bone Substitute with High Bioactivity, Strength, and Porosity for Repairing Large and Load-Bearing Bone Defects. Adv Healthc Mater 2019; 8:e1801298. [PMID: 30773833 DOI: 10.1002/adhm.201801298] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/18/2019] [Indexed: 12/18/2022]
Abstract
Achieving adequate healing in large or load-bearing bone defects is highly challenging even with surgical intervention. The clinical standard of repairing bone defects using autografts or allografts has many drawbacks. A bioactive ceramic scaffold, strontium-hardystonite-gahnite or "Sr-HT-Gahnite" (a multi-component, calcium silicate-based ceramic) is developed, which when 3D-printed combines high strength with outstanding bone regeneration ability. In this study, the performance of purely synthetic, 3D-printed Sr-HT-Gahnite scaffolds is assessed in repairing large and load-bearing bone defects. The scaffolds are implanted into critical-sized segmental defects in sheep tibia for 3 and 12 months, with bone autografts used for comparison. The scaffolds induce substantial bone formation and defect bridging after 12 months, as indicated by X-ray, micro-computed tomography, and histological and biomechanical analyses. Detailed analysis of the bone-scaffold interface using focused ion beam scanning electron microscopy and multiphoton microscopy shows scaffold degradation and maturation of the newly formed bone. In silico modeling of strain energy distribution in the scaffolds reveal the importance of surgical fixation and mechanical loading on long-term bone regeneration. The clinical application of 3D-printed Sr-HT-Gahnite scaffolds as a synthetic bone substitute can potentially improve the repair of challenging bone defects and overcome the limitations of bone graft transplantation.
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Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Raymond Purves Bone and Joint Research Laboratories Institute of Bone and Joint Research Kolling Institute Northern Sydney Local Health District Faculty of Medicine and Health University of Sydney St Leonards NSW 2065 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
| | - Colin R. Dunstan
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
| | - Ali Entezari
- School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
| | - Qing Li
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
| | - Roland Steck
- Medical Engineering Research Facility (MERF) Institute of Health and Biomedical Innovation (IHBI) Queensland University of Technology Prince Charles Hospital Campus Brisbane QLD 4000 Australia
| | - Siamak Saifzadeh
- Medical Engineering Research Facility (MERF) Institute of Health and Biomedical Innovation (IHBI) Queensland University of Technology Prince Charles Hospital Campus Brisbane QLD 4000 Australia
| | - Ameneh Sadeghpour
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- Allegra Orthopaedics Limited Sydney NSW 2000 Australia
| | - John R. Field
- Centre for Orthopaedic Trauma and Research University of Adelaide Adelaide SA 5000 Australia
| | - Austin Akey
- Center for Nanoscale Systems Harvard University Cambridge MA 02138 USA
| | - Martin Vielreicher
- Institute of Medical Biotechnology Department of Chemical and Biological Engineering Friedrich Alexander University of Erlangen‐Nürnberg Erlangen 91052 Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology Department of Chemical and Biological Engineering Friedrich Alexander University of Erlangen‐Nürnberg Erlangen 91052 Germany
| | | | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
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160
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Kim M, Jeong JH, Lee JY, Capasso A, Bonaccorso F, Kang SH, Lee YK, Lee GH. Electrically Conducting and Mechanically Strong Graphene-Polylactic Acid Composites for 3D Printing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:11841-11848. [PMID: 30810305 DOI: 10.1021/acsami.9b03241] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The advent of 3D printing has had a disruptive impact in manufacturing and can potentially revolutionize industrial fields. Thermoplastic materials printable into complex structures are widely employed for 3D printing. Polylactic acid (PLA) is among the most promising polymers used for 3D printing, owing to its low cost, biodegradability, and nontoxicity. However, PLA is electrically insulating and mechanically weak; this limits its use in a variety of 3D printing applications. This study demonstrates a straightforward and environment-friendly method to fabricate conductive and mechanically reinforced PLA composites by incorporating graphene nanoplatelets (GNPs). To fully utilize the superior electrical and mechanical properties of graphene, liquid-exfoliated GNPs are dispersed in isopropyl alcohol without the addition of any surfactant and combined with PLA dissolved in chloroform. The GNP-PLA composites exhibit improved mechanical properties (improvement in tensile strength by 44% and maximum strain by 57%) even at a low GNP threshold concentration of 2 wt %. The GNP-PLA composites also exhibit an electrical conductivity of over 1 mS/cm at >1.2 wt %. The GNP-PLA composites can be 3D-printed into various features with electrical conductivity and mechanical flexibility. This work presents a new direction toward advanced 3D printing technology by providing higher flexibility in designing multifunctional 3D printed features.
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Affiliation(s)
- Mirae Kim
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
| | - Jae Hwan Jeong
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
| | - Jong-Young Lee
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
| | - Andrea Capasso
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
- International Iberian Nanotechnology Laboratory , 4715-330 Braga , Portugal
| | | | - Seok-Hyeon Kang
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
| | - Young-Kook Lee
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
| | - Gwan-Hyoung Lee
- Department of Materials Science and Engineering , Yonsei University , Seoul 03722 , Korea
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161
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Ma Y, Hu N, Liu J, Zhai X, Wu M, Hu C, Li L, Lai Y, Pan H, Lu WW, Zhang X, Luo Y, Ruan C. Three-Dimensional Printing of Biodegradable Piperazine-Based Polyurethane-Urea Scaffolds with Enhanced Osteogenesis for Bone Regeneration. ACS APPLIED MATERIALS & INTERFACES 2019; 11:9415-9424. [PMID: 30698946 DOI: 10.1021/acsami.8b20323] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Synthetic biodegradable polymeric scaffolds with uniformly interconnected pore structure, appropriate mechanical properties, excellent biocompatibility, and even enhanced osteogenesis ability are urgently required for in situ bone regeneration. In this study, for the first time, a series of biodegradable piperazine (PP)-based polyurethane-urea (P-PUU) scaffolds with a gradient of PP contents were developed by air-driven extrusion 3D printing technology. The P-PUU ink of 60 wt % concentration was demonstrated to have appropriate viscosity for scaffold fabrication. The 3D-printed P-PUU scaffolds exhibited an interconnected porous structure of about 450 μm in macropore size and about 75% in porosity. By regulating the contents of PP in P-PUU scaffolds, their mechanical properties could be moderated, and P-PUU1.4 scaffolds with the highest PP contents exhibited the highest compressive modulus (155.9 ± 5.7 MPa) and strength (14.8 ± 1.1 MPa). Moreover, both in vitro and in vivo biological results suggested that the 3D-printed P-PUU scaffolds possessed excellent biocompatibility and osteoconductivity to facilitate new bone formation. The small molecular PP itself was confirmed for the first time to regulate osteogenesis of osteoblasts in a dose-dependent manner and the optimum concentration for osteoconductivity was about ∼0.5 mM, which suggests that PP molecules, together with the mechanical behavior, nitrogen-contents, and hydrophilicity of P-PUUs, play an important role in enhancing the osteoconductive ability of P-PUU scaffolds. Therefore, the 3D-printed P-PUU scaffolds, with suitable interconnected pore structure, appropriate mechanical properties, and intrinsically osteoconductive ability, should provide a promising alternative for bone regeneration.
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Affiliation(s)
- Yufei Ma
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Nan Hu
- Key Laboratory of Shenzhen Renal Diseases, Department of Nephrology, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University , Shenzhen People's Hospital , Shenzhen , Guangdong 518020 , China
| | - Juan Liu
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
| | - Xinyun Zhai
- Department of Orthopaedic and Traumatology , The University of Hong Kong , 21 Sassoon Road , Pokfulam , Hong Kong 999077 , China
| | | | | | | | | | | | - William Weijia Lu
- Department of Orthopaedic and Traumatology , The University of Hong Kong , 21 Sassoon Road , Pokfulam , Hong Kong 999077 , China
| | - Xinzhou Zhang
- Key Laboratory of Shenzhen Renal Diseases, Department of Nephrology, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University , Shenzhen People's Hospital , Shenzhen , Guangdong 518020 , China
| | - Yanfeng Luo
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering , Chongqing University , Chongqing 400030 , China
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162
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Stock SR, Laugesen M, Birkedal H, Jakus A, Shah R, Park JS, Almer JD. Precision lattice parameter determination from transmission diffraction of thick specimens with irregular cross sections. J Appl Crystallogr 2019. [DOI: 10.1107/s1600576718017132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Accurate determination of lattice parameters from X-ray diffraction requires that the diffraction angles be measured very precisely, and significant errors result if the sample–detector separation differs from that assumed. Transmission diffraction from bones, which have a complex cross section and must be left intact, is a situation where this separation is difficult to measure and it may differ from position to position across the specimen. This article describes a method for eliminating the effect of variable sample cross section. Diffraction patterns for each position on the specimen are collected before and after 180° rotation about an axis normal to the cross section of interest. This places the centroid of the diffracting mass at the center of rotation and provides the absolute lattice parameters from the average apparent lattice parameters at the two rotation angles. Diffraction patterns were collected across the cross section of three specimens: a 3D-printed elliptical cylinder of Hyperelastic Bone (HB), which is composed primarily of synthetic hydroxyapatite (hAp), a 3D-printed HB model of the second metacarpal bone (Mc2), and a modern human Mc2 containing nanocrystalline carbonated apatite (cAp). Rietveld refinement was used to determine precise unit-cell parameters a
apparent and c
apparent for each pattern of each scan, and these values determined the actual average 〈a〉 and 〈c〉 for each sample. The results indicate that the 0°/180° rotation method works well enough to uncover variations approaching 1 × 10−3 Å in cAp unit-cell parameters in intact bones with irregular cross sections.
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163
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Cheng ZA, Alba‐Perez A, Gonzalez‐Garcia C, Donnelly H, Llopis‐Hernandez V, Jayawarna V, Childs P, Shields DW, Cantini M, Ruiz‐Cantu L, Reid A, Windmill JFC, Addison ES, Corr S, Marshall WG, Dalby MJ, Salmeron‐Sanchez M. Nanoscale Coatings for Ultralow Dose BMP-2-Driven Regeneration of Critical-Sized Bone Defects. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1800361. [PMID: 30693176 PMCID: PMC6343071 DOI: 10.1002/advs.201800361] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 10/28/2018] [Indexed: 05/05/2023]
Abstract
While new biomaterials for regenerative therapies are being reported in the literature, clinical translation is slow. Some existing regenerative approaches rely on high doses of growth factors, such as bone morphogenetic protein-2 (BMP-2) in bone regeneration, which can cause serious side effects. An ultralow-dose growth factor technology is described yielding high bioactivity based on a simple polymer, poly(ethyl acrylate) (PEA), and mechanisms to drive stem cell differentiation and bone regeneration in a critical-sized murine defect model with translation to a clinical veterinary setting are reported. This material-based technology triggers spontaneous fibronectin organization and stimulates growth factor signalling, enabling synergistic integrin and BMP-2 receptor activation in mesenchymal stem cells. To translate this technology, plasma-polymerized PEA is used on 2D and 3D substrates to enhance cell signalling in vitro, showing the complete healing of a critical-sized bone injury in mice in vivo. Efficacy is demonstrated in a Münsterländer dog with a nonhealing humerus fracture, establishing the clinical translation of advanced ultralow-dose growth factor treatment.
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Affiliation(s)
- Zhe A. Cheng
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Andres Alba‐Perez
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | | | - Hannah Donnelly
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | | | - Vineetha Jayawarna
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Peter Childs
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - David W. Shields
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Marco Cantini
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
| | - Laura Ruiz‐Cantu
- Centre for Additive ManufacturingUniversity of NottinghamNottinghamUK
| | - Andrew Reid
- Centre for Ultrasonic EngineeringDepartment of Electronic and Electrical EngineeringUniversity of StrathclydeGlasgowUK
| | - James F. C. Windmill
- Centre for Ultrasonic EngineeringDepartment of Electronic and Electrical EngineeringUniversity of StrathclydeGlasgowUK
| | | | - Sandra Corr
- Small Animal HospitalUniversity of GlasgowGlasgowUK
| | | | - Matthew J. Dalby
- Centre for the Cellular MicroenvironmentUniversity of GlasgowG12 8LTGlasgowUK
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164
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Kang MH, Lee H, Jang TS, Seong YJ, Kim HE, Koh YH, Song J, Jung HD. Biomimetic porous Mg with tunable mechanical properties and biodegradation rates for bone regeneration. Acta Biomater 2019; 84:453-467. [PMID: 30500444 DOI: 10.1016/j.actbio.2018.11.045] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 11/02/2018] [Accepted: 11/26/2018] [Indexed: 11/19/2022]
Abstract
The medical applications of porous Mg scaffolds are limited owing to its rapid corrosion, which dramatically decreases the mechanical strength of the scaffold. Mimicking the bone structure and composition can improve the mechanical and biological properties of porous Mg scaffolds. The Mg structure can also be coated with HA by an aqueous precipitation coating method to enhance both the corrosion resistance and the biocompatibility. However, due to the brittleness of HA coating layer, cracks tend to form in the HA coating layer, which may influence the corrosion and biological functionality of the scaffold. Consequently, in this study, hybrid poly(ether imide) (PEI)-SiO2 layers were applied to the HA-coated biomimetic porous Mg to impart the structure with the high corrosion resistance associated with PEI and excellent bioactivity with SiO2. The porosity of the Mg was controlled by adjusting the concentration of the sodium chloride (NaCl) particles used in the fabrication via the space-holder method. The mechanical measurements showed that the compressive strength and stiffness of the biomimetic porous Mg increased as the portion of the dense region increased. In addition, following results show that HA/(PEI-SiO2) hybrid-coated biomimetic Mg is a promising biodegradable scaffold for orthopedic applications. In-vitro testing revealed that the proposed hybrid coating reduced the degradation rate and facilitated osteoblast spreading compared to HA- and HA/PEI-coating scaffolds. Moreover, in-vivo testing with a rabbit femoropatellar groove model showed improved tissue formation, reduced corrosion and degradation, and improved bone formation on the scaffold. STATEMENT OF SIGNIFICANCE: Porous Mg is a promising biodegradable scaffold for orthopedic applications. However, there are limitations in applying porous Mg for an orthopedic biomaterial due to its poor mechanical properties and susceptibility to rapid corrosion. Here, we strategically designed the structure and coating layer of porous Mg to overcome these limitations. First, porous Mg was fabricated by mimicking the bone structure which has a combined structure of dense and porous regions, thus resulting in an enhancement of mechanical properties. Furthermore, the biomimetic porous Mg was coated with HA/(PEI-SiO2) hybrid layer to improve both corrosion resistance and biocompatibility. As the final outcome, with tunable mechanical and biodegradable properties, HA/(PEI-SiO2)-coated biomimetic porous Mg could be a promising candidate material for load-bearing orthopedic applications.
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Affiliation(s)
- Min-Ho Kang
- Department of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Republic of Korea; Center of Nanoparticle Research, Institute for Basic Science (IBS), Republic of Korea
| | - Hyun Lee
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Tae-Sik Jang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457 Singapore, Singapore; Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon 21999, Republic of Korea
| | - Yun-Jeong Seong
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyoun-Ee Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Young-Hag Koh
- School of Biomedical Engineering, Korea University, Seoul 136-703, Republic of Korea
| | - Juha Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, 637457 Singapore, Singapore
| | - Hyun-Do Jung
- Research Institute of Advanced Manufacturing Technology, Korea Institute of Industrial Technology, Incheon 21999, Republic of Korea.
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165
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Multiscale Stem Cell Technologies for Osteonecrosis of the Femoral Head. Stem Cells Int 2019; 2019:8914569. [PMID: 30728843 PMCID: PMC6341242 DOI: 10.1155/2019/8914569] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 10/21/2018] [Accepted: 11/14/2018] [Indexed: 02/06/2023] Open
Abstract
The last couple of decades have seen brilliant progress in stem cell therapies, including native, genetically modified, and engineered stem cells, for osteonecrosis of the femoral head (ONFH). In vitro studies evaluate the effect of endogenous or exogenous factor or gene regulation on osteogenic phenotype maintenance and/or differentiation towards osteogenic lineage. The preclinical and clinical outcomes accelerate the clinical translation. Bone marrow mesenchymal stem cells and adipose-derived stem cells have demonstrated better effects in the treatment of femoral head necrosis. Various materials have been used widely in the ONFH treatment in both preclinical and clinical trials. In a word, in vivo and multiscale efforts are expected to overcome obstacles in the approaches for treating ONFH and provide clinical relevance and commercial strategies in the future. Therefore, we will discuss the above aspects in this paper and present our opinions.
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166
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Abstract
In part 1 of this article, the authors explore nanoscale modifications of the surfaces of biomaterials, which offer an exciting potential venue for the prevention of bacterial adhesion and growth. Despite advances in the design and manufacture of implants, infection remains an important and often devastating mode of failure. In part 2, additive technologies for tissue engineering, live cell printing (bioprinting), and tissue fabrication are briefly introduced. The similarities and differences between bioprinting and non-bio 3D-printing approaches and requirements are discussed, along with terminological definitions, current processes, requirements, and biomaterial and cell-type selection and sourcing.
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Affiliation(s)
- Felasfa M Wodajo
- Virginia Cancer Specialists, 8503 Arlington Boulevard, Suite 400, Fairfax, VA 22031, USA; Orthopedic Surgery, VCU School of Medicine, Inova Campus, Fairfax, VA 22042, USA; Orthopedic Surgery, Georgetown University Hospital, Washington, DC 20007, USA.
| | - Adam E Jakus
- Dimension Inx LLC, 303 East Superior Street, 11th Floor, Chicago, IL 60611, USA
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167
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Jain T, Clay W, Tseng YM, Vishwakarma A, Narayanan A, Ortiz D, Liu Q, Joy A. Role of pendant side-chain length in determining polymer 3D printability. Polym Chem 2019. [DOI: 10.1039/c9py00879a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The effect of polymer side chain on extrusion-based direct-write 3D printing and rheology is examined. Longer side chain length improves printability at ambient temperatures.
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Affiliation(s)
- Tanmay Jain
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - William Clay
- Department of Polymer Science
- The University of Akron
- Akron
- USA
- Department of Chemistry & Biochemistry
| | - Yen-Ming Tseng
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | | | - Amal Narayanan
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Deliris Ortiz
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Qianhui Liu
- Department of Polymer Science
- The University of Akron
- Akron
- USA
| | - Abraham Joy
- Department of Polymer Science
- The University of Akron
- Akron
- USA
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168
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Wu X, Stroll SI, Lantigua D, Suvarnapathaki S, Camci-Unal G. Eggshell particle-reinforced hydrogels for bone tissue engineering: an orthogonal approach. Biomater Sci 2019; 7:2675-2685. [DOI: 10.1039/c9bm00230h] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Eggshell microparticle-reinforced hydrogels have been fabricated and characterized to obtain mechanically stable and biologically active scaffolds that can direct the differentiation of cells.
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Affiliation(s)
- Xinchen Wu
- Biomedical Engineering and Biotechnology Program
- University of Massachusetts Lowell
- Lowell
- USA
- Department of Chemical Engineering
| | - Stephanie I. Stroll
- Department of Chemical Engineering
- University of Massachusetts Lowell
- Lowell
- USA
- Department of Biological Sciences
| | - Darlin Lantigua
- Biomedical Engineering and Biotechnology Program
- University of Massachusetts Lowell
- Lowell
- USA
- Department of Chemical Engineering
| | - Sanika Suvarnapathaki
- Biomedical Engineering and Biotechnology Program
- University of Massachusetts Lowell
- Lowell
- USA
- Department of Chemical Engineering
| | - Gulden Camci-Unal
- Department of Chemical Engineering
- University of Massachusetts Lowell
- Lowell
- USA
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169
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Singh M, Nanda HS, O'Rorke RD, Jakus AE, Shah AH, Shah RN, Webster RD, Steele TWJ. Voltaglue Bioadhesives Energized with Interdigitated 3D-Graphene Electrodes. Adv Healthc Mater 2018; 7:e1800538. [PMID: 30253081 DOI: 10.1002/adhm.201800538] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 07/25/2018] [Indexed: 01/08/2023]
Abstract
Soft tissue fixation of implant and bioelectrodes relies on mechanical means (e.g., sutures, staples, and screws), with associated complications of tissue perforation, scarring, and interfacial stress concentrations. Adhesive bioelectrodes address these shortcomings with voltage cured carbene-based bioadhesives, locally energized through graphene interdigitated electrodes. Electrorheometry and adhesion structure activity relationships are explored with respect to voltage and electrolyte on bioelectrodes synthesized from graphene 3D-printed onto resorbable polyester substrates. Adhesive leachates effects on in vitro metabolism and human-derived platelet-rich plasma response serves to qualitatively assess biological response. The voltage activated bioadhesives are found to have gelation times of 60 s or less with maximum shear storage modulus (G') of 3 kPa. Shear modulus mimics reported values for human soft tissues (0.1-10 kPa). The maximum adhesion strength achieved for the ≈50 mg bioelectrode films is 170 g cm-2 (17 kPa), which exceeds the force required for tethering of electrodes on dynamic soft tissues. The method provides the groundwork for implantable bio/electrodes that may be permanently incorporated into soft tissues, vis-à-vis graphene backscattering wireless electronics since all components are bioresorbable.
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Affiliation(s)
- Manisha Singh
- NTU‐Northwestern Institute for Nanomedicine Interdisciplinary Graduate School Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
- School of Materials Science and Engineering (MSE) Division of Materials Technology Nanyang Technological University (NTU) Singapore 639798 Singapore
| | - Himansu Sekhar Nanda
- School of Materials Science and Engineering (MSE) Division of Materials Technology Nanyang Technological University (NTU) Singapore 639798 Singapore
- Department of Mechanical Engineering PDPM‐Indian Institute of Information Technology Design and Manufacturing (IIITDM)‐Jabalpur Dumna Airport Road Jabalpur ‐482005 MP India
| | - Richard D. O'Rorke
- Singapore University of Technology and Design 8 Somapah Road Singapore 487372 Singapore
| | - Adam E. Jakus
- Department of Materials Science and Engineering Northwestern University 2220 Campus Drive Evanston IL 60208 USA
- Simpson Querrey Institute for BioNanotechnology Northwestern University 303 E Superior St. Chicago IL 60611 USA
- Department of Biomedical Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60611 USA
- Division of Organ Transplantation Comprehensive Transplant Center Department of Surgery Northwestern University 251 E Huron St. Chicago IL 60611 USA
| | - Ankur Harish Shah
- School of Materials Science and Engineering (MSE) Division of Materials Technology Nanyang Technological University (NTU) Singapore 639798 Singapore
| | - Ramille N. Shah
- Department of Materials Science and Engineering Northwestern University 2220 Campus Drive Evanston IL 60208 USA
- Simpson Querrey Institute for BioNanotechnology Northwestern University 303 E Superior St. Chicago IL 60611 USA
- Department of Biomedical Engineering Northwestern University 2145 Sheridan Rd. Evanston IL 60611 USA
- Division of Organ Transplantation Comprehensive Transplant Center Department of Surgery Northwestern University 251 E Huron St. Chicago IL 60611 USA
| | - Richard D. Webster
- Division of Chemistry and Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Terry W. J. Steele
- NTU‐Northwestern Institute for Nanomedicine Interdisciplinary Graduate School Nanyang Technological University 50 Nanyang Drive Singapore 637553 Singapore
- School of Materials Science and Engineering (MSE) Division of Materials Technology Nanyang Technological University (NTU) Singapore 639798 Singapore
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170
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Peng E, Zhang D, Ding J. Ceramic Robocasting: Recent Achievements, Potential, and Future Developments. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802404. [PMID: 30306642 DOI: 10.1002/adma.201802404] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 07/15/2018] [Indexed: 06/08/2023]
Abstract
Additive manufacturing (AM) of ceramic materials has attracted tremendous attention in recent years, due to its potential to fabricate suitable advanced ceramic structures for various engineering applications. Robocasting, a subset of ceramic AM, is an ideal technique for constructing fine and dense ceramic structures with geometrically complex morphology. With the freedom and convenience to deposit various materials within any 3D spatial position, ceramic robocasting opens up unlimited opportunities, which are otherwise hardly attainable from other AM techniques. Here, a summary of the recent progress on the fabrication of single and multi-ceramic structures by robocasting is provided, as well as the prospects of achieving shapeable ceramic structures. The current challenges in ceramic robocasting and an outlook on its development, especially toward the fabrication of self-shaping ceramic structures, are also discussed.
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Affiliation(s)
- Erwin Peng
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
| | - Danwei Zhang
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
| | - Jun Ding
- Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576, Singapore
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171
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Bruyas A, Moeinzadeh S, Kim S, Lowenberg DW, Yang YP. Effect of Electron Beam Sterilization on Three-Dimensional-Printed Polycaprolactone/Beta-Tricalcium Phosphate Scaffolds for Bone Tissue Engineering. Tissue Eng Part A 2018; 25:248-256. [PMID: 30234441 DOI: 10.1089/ten.tea.2018.0130] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
IMPACT STATEMENT Providing customized geometries and improved control in physical and biological properties, 3D-printed polycaprolactone/beta-tricalcium phosphate (PCL/β-TCP) composite constructs are of high interest for bone tissue engineering applications. A critical step toward the translation and clinical applications of these types of scaffolds is terminal sterilization, and E-beam irradiation might be the most relevant method because of PCL properties. Through in vitro experimental testing of both physical and biological properties, it is proven in this article that E-beam irradiation is relevant for sterilization of 3D-printed PCL/β-TCP scaffolds for bone tissue engineering applications.
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Affiliation(s)
- Arnaud Bruyas
- 1 Department of Orthopaedic Surgery and of Bioengineering and of Material Science and Engineering, Stanford University, Stanford, California
| | - Seyedsina Moeinzadeh
- 1 Department of Orthopaedic Surgery and of Bioengineering and of Material Science and Engineering, Stanford University, Stanford, California
| | - Sungwoo Kim
- 1 Department of Orthopaedic Surgery and of Bioengineering and of Material Science and Engineering, Stanford University, Stanford, California
| | - David W Lowenberg
- 1 Department of Orthopaedic Surgery and of Bioengineering and of Material Science and Engineering, Stanford University, Stanford, California
| | - Yunzhi Peter Yang
- 2 Department of Orthopaedic Surgery, of Bioengineering and of Material Science and Engineering, Stanford University, Stanford, California
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172
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Kelder C, Bakker AD, Klein-Nulend J, Wismeijer D. The 3D Printing of Calcium Phosphate with K-Carrageenan under Conditions Permitting the Incorporation of Biological Components-A Method. J Funct Biomater 2018; 9:E57. [PMID: 30336547 PMCID: PMC6306897 DOI: 10.3390/jfb9040057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 09/06/2018] [Accepted: 10/11/2018] [Indexed: 12/15/2022] Open
Abstract
Critical-size bone defects are a common clinical problem. The golden standard to treat these defects is autologous bone grafting. Besides the limitations of availability and co-morbidity, autografts have to be manually adapted to fit in the defect, which might result in a sub-optimal fit and impaired healing. Scaffolds with precise dimensions can be created using 3-dimensional (3D) printing, enabling the production of patient-specific, 'tailor-made' bone substitutes with an exact fit. Calcium phosphate (CaP) is a popular material for bone tissue engineering due to its biocompatibility, osteoconductivity, and biodegradable properties. To enhance bone formation, a bioactive 3D-printed CaP scaffold can be created by combining the printed CaP scaffold with biological components such as growth factors and cytokines, e.g., vascular endothelial growth factor (VEGF), bone morphogenetic protein-2 (BMP-2), and interleukin-6 (IL-6). However, the 3D-printing of CaP with a biological component is challenging since production techniques often use high temperatures or aggressive chemicals, which hinders/inactivates the bioactivity of the incorporated biological components. Therefore, in our laboratory, we routinely perform extrusion-based 3D-printing with a biological binder at room temperature to create porous scaffolds for bone healing. In this method paper, we describe in detail a 3D-printing procedure for CaP paste with K-carrageenan as a biological binder.
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Affiliation(s)
- Cindy Kelder
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Astrid Diana Bakker
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Jenneke Klein-Nulend
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
| | - Daniël Wismeijer
- Department of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit Amsterdam, Gustav Mahlerlaan 3004, 1081 LA Amsterdam, The Netherlands.
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173
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Rashad A, Mohamed-Ahmed S, Ojansivu M, Berstad K, Yassin MA, Kivijärvi T, Heggset EB, Syverud K, Mustafa K. Coating 3D Printed Polycaprolactone Scaffolds with Nanocellulose Promotes Growth and Differentiation of Mesenchymal Stem Cells. Biomacromolecules 2018; 19:4307-4319. [DOI: 10.1021/acs.biomac.8b01194] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ahmad Rashad
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | | | - Miina Ojansivu
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
- Adult Stem Cell Research Group, Faculty of Medicine and Life Sciences and BioMediTech Institute, University of Tampere, Tampere, Finland
| | - Kaia Berstad
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Mohammed A. Yassin
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
- Department of Fiber and Polymer Technology, Royal Institute of Technology (KTH), Stockholm, Sweden
| | - Tove Kivijärvi
- Department of Fiber and Polymer Technology, Royal Institute of Technology (KTH), Stockholm, Sweden
| | | | - Kristin Syverud
- RISE PFI, Trondheim, Norway
- Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), Trondheim, Norway
| | - Kamal Mustafa
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
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174
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Bittner SM, Guo JL, Melchiorri A, Mikos AG. Three-dimensional Printing of Multilayered Tissue Engineering Scaffolds. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2018; 21:861-874. [PMID: 30450010 PMCID: PMC6233733 DOI: 10.1016/j.mattod.2018.02.006] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The field of tissue engineering has produced new therapies for the repair of damaged tissues and organs, utilizing biomimetic scaffolds that mirror the mechanical and biological properties of host tissue. The emergence of three-dimensional printing (3DP) technologies has enabled the fabrication of highly complex scaffolds which offer a more accurate replication of native tissue properties and architecture than previously possible. Of strong interest to tissue engineers is the construction of multilayered scaffolds that target distinct regions of complex tissues. Musculoskeletal and dental tissues in particular, such as the osteochondral unit and periodontal complex, are composed of multiple interfacing tissue types, and thus benefit from the usage of multilayered scaffold fabrication. Traditional 3DP technologies such as extrusion printing and selective laser sintering have been used for the construction of scaffolds with gradient architectures and mixed material compositions. Additionally, emerging bioprinting strategies have been used for the direct printing and spatial patterning of cells and chemical factors, capturing the complex organization found in the body. To better replicate the varied and gradated properties of larger tissues, researchers have created scaffolds composed of multiple materials spanning natural polymers, synthetic polymers, and ceramics. By utilizing high precision 3DP techniques and judicious material selection, scaffolds can thus be designed to address the regeneration of previously challenging musculoskeletal, dental, and other heterogeneous target tissues. These multilayered 3DP strategies show great promise in the future of tissue engineering.
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Affiliation(s)
- Sean M Bittner
- Department of Bioengineering, Rice University, Houston, TX
- Center for Engineering Complex Tissues
| | - Jason L Guo
- Department of Bioengineering, Rice University, Houston, TX
| | - Anthony Melchiorri
- Department of Bioengineering, Rice University, Houston, TX
- Center for Engineering Complex Tissues
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX
- Center for Engineering Complex Tissues
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175
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Turnbull G, Clarke J, Picard F, Riches P, Jia L, Han F, Li B, Shu W. 3D bioactive composite scaffolds for bone tissue engineering. Bioact Mater 2018; 3:278-314. [PMID: 29744467 PMCID: PMC5935790 DOI: 10.1016/j.bioactmat.2017.10.001] [Citation(s) in RCA: 584] [Impact Index Per Article: 97.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 10/31/2017] [Accepted: 10/31/2017] [Indexed: 12/13/2022] Open
Abstract
Bone is the second most commonly transplanted tissue worldwide, with over four million operations using bone grafts or bone substitute materials annually to treat bone defects. However, significant limitations affect current treatment options and clinical demand for bone grafts continues to rise due to conditions such as trauma, cancer, infection and arthritis. Developing bioactive three-dimensional (3D) scaffolds to support bone regeneration has therefore become a key area of focus within bone tissue engineering (BTE). A variety of materials and manufacturing methods including 3D printing have been used to create novel alternatives to traditional bone grafts. However, individual groups of materials including polymers, ceramics and hydrogels have been unable to fully replicate the properties of bone when used alone. Favourable material properties can be combined and bioactivity improved when groups of materials are used together in composite 3D scaffolds. This review will therefore consider the ideal properties of bioactive composite 3D scaffolds and examine recent use of polymers, hydrogels, metals, ceramics and bio-glasses in BTE. Scaffold fabrication methodology, mechanical performance, biocompatibility, bioactivity, and potential clinical translations will be discussed.
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Affiliation(s)
- Gareth Turnbull
- Department of Biomedical Engineering, Wolfson Building, University of Strathclyde, 106 Rottenrow, Glasgow, G4 0NW, United Kingdom
- Department of Orthopaedic Surgery, Golden Jubilee National Hospital, Agamemnon St, Clydebank, G81 4DY, United Kingdom
| | - Jon Clarke
- Department of Orthopaedic Surgery, Golden Jubilee National Hospital, Agamemnon St, Clydebank, G81 4DY, United Kingdom
| | - Frédéric Picard
- Department of Biomedical Engineering, Wolfson Building, University of Strathclyde, 106 Rottenrow, Glasgow, G4 0NW, United Kingdom
- Department of Orthopaedic Surgery, Golden Jubilee National Hospital, Agamemnon St, Clydebank, G81 4DY, United Kingdom
| | - Philip Riches
- Department of Biomedical Engineering, Wolfson Building, University of Strathclyde, 106 Rottenrow, Glasgow, G4 0NW, United Kingdom
| | - Luanluan Jia
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, PR China
| | - Fengxuan Han
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, PR China
| | - Bin Li
- Orthopaedic Institute, Department of Orthopaedic Surgery, The First Affiliated Hospital, Soochow University, Suzhou, Jiangsu, PR China
| | - Wenmiao Shu
- Department of Biomedical Engineering, Wolfson Building, University of Strathclyde, 106 Rottenrow, Glasgow, G4 0NW, United Kingdom
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176
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Liu G, Zhao Y, Wu G, Lu J. Origami and 4D printing of elastomer-derived ceramic structures. SCIENCE ADVANCES 2018; 4:eaat0641. [PMID: 30128354 PMCID: PMC6097816 DOI: 10.1126/sciadv.aat0641] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 07/11/2018] [Indexed: 05/03/2023]
Abstract
Four-dimensional (4D) printing involves conventional 3D printing followed by a shape-morphing step. It enables more complex shapes to be created than is possible with conventional 3D printing. However, 3D-printed ceramic precursors are usually difficult to be deformed, hindering the development of 4D printing for ceramics. To overcome this limitation, we developed elastomeric poly(dimethylsiloxane) matrix nanocomposites (NCs) that can be printed, deformed, and then transformed into silicon oxycarbide matrix NCs, making the growth of complex ceramic origami and 4D-printed ceramic structures possible. In addition, the printed ceramic precursors are soft and can be stretched beyond three times their initial length. Hierarchical elastomer-derived ceramics (EDCs) could be achieved with programmable architectures spanning three orders of magnitude, from 200 μm to 10 cm. A compressive strength of 547 MPa is achieved on the microlattice at 1.6 g cm-3. This work starts a new chapter of printing high-resolution complex and mechanically robust ceramics, and this origami and 4D printing of ceramics is cost-efficient in terms of time due to geometrical flexibility of precursors. With the versatile shape-morphing capability of elastomers, this work on origami and 4D printing of EDCs could lead to structural applications of autonomous morphing structures, aerospace propulsion components, space exploration, electronic devices, and high-temperature microelectromechanical systems.
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Affiliation(s)
- Guo Liu
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, PR China
| | - Yan Zhao
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, PR China
| | - Ge Wu
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, PR China
| | - Jian Lu
- Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, PR China
- Centre for Advanced Structural Materials, City University of Hong Kong, Shenzhen Research Institute, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, PR China
- Corresponding author.
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177
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Investigation on Anti-Autofluorescence, Osteogenesis and Long-Term Tracking of HA-Based Upconversion Material. Sci Rep 2018; 8:11267. [PMID: 30050096 PMCID: PMC6062553 DOI: 10.1038/s41598-018-29539-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/13/2018] [Indexed: 02/05/2023] Open
Abstract
Hydroxyapatite (HA) material will be long-standing once implanted in bone tissue of the body. It should be considered to endow the osteogenic HA material with traceable fluorescence to realize a lifelong in vivo tracking. We prepared and utilized lanthanides-doped HA upconversion material, and revealed for the first time that the lanthanides (ytterbium (Yb) and holmium (Ho)) co-doped HA upconversion material was suitable for long-term or lifelong in vivo tracking, the lanthanide ions doped in the HA matrix would not affect the biocompatibility and osteogenesis, and the tissue autofluorescence could be effectively avoided by the HA:Yb/Ho upconversion material. Also the distribution in bone and osteointegration with bone of the HA:Yb/Ho material could be clearly discriminated by its bright fluorescence under NIR irradiation. The upconversion characteristic of the HA:Yb/Ho material provides a feasibility and promising prospect for lifelong in vivo tracking, and has an advantage in revealing the material-tissue interrelation. The material has important clinical application value in addition to its usefulness for scientific investigation.
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178
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Liu X, Jakus AE, Kural M, Qian H, Engler A, Ghaedi M, Shah R, Steinbacher DM, Niklason LE. Vascularization of Natural and Synthetic Bone Scaffolds. Cell Transplant 2018; 27:1269-1280. [PMID: 30008231 PMCID: PMC6434463 DOI: 10.1177/0963689718782452] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Vascularization of engineered bone tissue is critical for ensuring its survival after implantation. In vitro pre-vascularization of bone grafts with endothelial cells is a promising strategy to improve implant survival. In this study, we pre-cultured human smooth muscle cells (hSMCs) on bone scaffolds for 3 weeks followed by seeding of human umbilical vein endothelial cells (HUVECs), which produced a desirable environment for microvasculature formation. The sequential cell-seeding protocol was successfully applied to both natural (decellularized native bone, or DB) and synthetic (3D-printed Hyperelastic "Bone" scaffolds, or HB) scaffolds, demonstrating a comprehensive platform for developing natural and synthetic-based in vitro vascularized bone grafts. Using this sequential cell-seeding process, the HUVECs formed lumen structures throughout the DB scaffolds as well as vascular tissue bridging 3D-printed fibers within the HB. The pre-cultured hSMCs were essential for endothelial cell (EC) lumen formation within DB scaffolds, as well as for upregulating EC-specific gene expression of HUVECs grown on HB scaffolds. We further applied this co-culture protocol to DB scaffolds using a perfusion bioreactor, to overcome the limitations of diffusive mass transport into the interiors of the scaffolds. Compared with static culture, panoramic histological sections of DB scaffolds cultured in bioreactors showed improved cellular density, as well as a nominal increase in the number of lumen structures formed by ECs in the interior regions of the scaffolds. In conclusion, we have demonstrated that the sequential seeding of hSMCs and HUVECs can serve to generate early microvascular networks that could further support the in vitro tissue engineering of naturally or synthetically derived bone grafts and in both random (DB) and ordered (HB) pore networks. Combined with the preliminary bioreactor study, this process also shows potential to generate clinically sized, vascularized bone scaffolds for tissue and regenerative engineering.
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Affiliation(s)
- Xi Liu
- 1 Plastic and Reconstructive Surgery, Yale University School of Medicine, Yale University, New Haven, CT, USA
| | - Adam E Jakus
- 2 Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, Chicago, IL, USA.,3 Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA
| | - Mehmet Kural
- 4 Department of Anesthesiology, Yale University, New Haven, CT, USA.,5 Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Hong Qian
- 4 Department of Anesthesiology, Yale University, New Haven, CT, USA.,5 Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Alexander Engler
- 4 Department of Anesthesiology, Yale University, New Haven, CT, USA.,5 Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Mahboobe Ghaedi
- 4 Department of Anesthesiology, Yale University, New Haven, CT, USA.,5 Department of Biomedical Engineering, Yale University, New Haven, CT, USA
| | - Ramille Shah
- 2 Department of Materials Science and Engineering, McCormick School of Engineering, Northwestern University, Chicago, IL, USA.,3 Simpson Querrey Institute for BioNanotechnology, Northwestern University, Chicago, IL, USA.,6 Department of Biomedical Engineering, McCormick School of Engineering, Northwestern University, Chicago, IL, USA.,7 Division of Organ Transplantation, Department of Surgery, Comprehensive Transplant Center, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Derek M Steinbacher
- 1 Plastic and Reconstructive Surgery, Yale University School of Medicine, Yale University, New Haven, CT, USA
| | - Laura E Niklason
- 4 Department of Anesthesiology, Yale University, New Haven, CT, USA.,5 Department of Biomedical Engineering, Yale University, New Haven, CT, USA
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179
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Du X, Fu S, Zhu Y. 3D printing of ceramic-based scaffolds for bone tissue engineering: an overview. J Mater Chem B 2018; 6:4397-4412. [PMID: 32254656 DOI: 10.1039/c8tb00677f] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Currently, one of the most promising strategies in bone tissue engineering focuses on the development of biomimetic scaffolds. Ceramic-based scaffolds with favorable osteogenic ability and mechanical properties are promising candidates for bone repair. Three-dimensional (3D) printing is an additive manufacturing technique, which allows the fabrication of patient-specific scaffolds with high structural complexity and design flexibility, and gains growing attention. This review aims to highlight advances in 3D printing of ceramic-based scaffolds for bone tissue engineering. Technical limitations and practical challenges are emphasized and design considerations are also discussed.
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Affiliation(s)
- Xiaoyu Du
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China.
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180
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Pereira T, Prendergast ME, Solorzano R. State of the art biofabrication technologies and materials for bone tissue engineering. ACTA ACUST UNITED AC 2018. [DOI: 10.2217/3dp-2018-0003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Bone tissue engineering is a field whose relevance is paramount, especially for the treatment of musculoskeletal-related disabilities. Failure of conventional methods to create physiologically relevant bone materials has prompted exploring several 3D-printing and additive manufacturing processes, including bioprinting, selective laser sintering, electrospinning and stereolithography. These technologies emerged in conjunction with new materials such as Hyperelastic Bone™, graphene and thermoplastics coupled with cell-laden hydrogels. This work will review these current state-of-the-art materials and technologies, their impact on advancements in bone tissue engineering and will highlight future considerations for the field.
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Affiliation(s)
- Taciana Pereira
- Allevi, Inc., 3401 Grays Ferry Avenue, Philadelphia, PA 19146, USA
| | | | - Ricky Solorzano
- Allevi, Inc., 3401 Grays Ferry Avenue, Philadelphia, PA 19146, USA
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181
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Guiney LM, Mansukhani ND, Jakus AE, Wallace SG, Shah RN, Hersam MC. Three-Dimensional Printing of Cytocompatible, Thermally Conductive Hexagonal Boron Nitride Nanocomposites. NANO LETTERS 2018; 18:3488-3493. [PMID: 29709193 DOI: 10.1021/acs.nanolett.8b00555] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hexagonal boron nitride (hBN) is a thermally conductive yet electrically insulating two-dimensional layered nanomaterial that has attracted significant attention as a dielectric for high-performance electronics in addition to playing a central role in thermal management applications. Here, we report a high-content hBN-polymer nanocomposite ink, which can be 3D printed to form mechanically robust, self-supporting constructs. In particular, hBN is dispersed in poly(lactic- co-glycolic acid) and 3D printed at room temperature through an extrusion process to form complex architectures. These constructs can be 3D printed with a composition of up to 60% vol hBN (solids content) while maintaining high mechanical flexibility and stretchability. The presence of hBN within the matrix results in enhanced thermal conductivity (up to 2.1 W K-1 m-1) directly after 3D printing with minimal postprocessing steps, suggesting utility in thermal management applications. Furthermore, the constructs show high levels of cytocompatibility, making them suitable for use in the field of printed bioelectronics.
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182
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Abstract
Calcium phosphates have long been used as synthetic bone grafts. Recent studies have shown that the modulation of composition and textural properties, such as nano-, micro- and macro-porosity, is a powerful strategy to control and synchronize material resorption and bone formation.Biomimetic calcium phosphates, which closely mimic the composition and structure of bone mineral, can be produced using low-temperature processing routes, and offer the possibility to modulate the material properties to a larger extent than conventional high temperature sintering processes.Advanced technologies open up new possibilities in the design of bioceramics for bone regeneration; 3D-printing technologies, in combination with the development of hybrid materials with enhanced mechanical properties, supported by finite element modelling tools, are expected to enable the design and fabrication of mechanically competent patient-specific bone grafts.The association of ions, drugs and cells allows leveraging of the osteogenic potential of bioceramic scaffolds in compromised clinical situations, where the intrinsic bone regeneration potential is impaired. Cite this article: EFORT Open Rev 2018;3 DOI: 10.1302/2058-5241.3.170056.
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Affiliation(s)
- Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), Spain
| | - Montserrat Espanol
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), Spain
| | - Yassine Maazouz
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Metallurgical Engineering, Universitat Politècnica de Catalunya (UPC), Spain
- Mimetis Biomaterials, Spain
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183
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Jakus A, Geisendorfer N, Lewis P, Shah R. 3D-printing porosity: A new approach to creating elevated porosity materials and structures. Acta Biomater 2018; 72:94-109. [PMID: 29601901 DOI: 10.1016/j.actbio.2018.03.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 02/23/2018] [Accepted: 03/21/2018] [Indexed: 12/14/2022]
Abstract
We introduce a new process that enables the ability to 3D-print high porosity materials and structures by combining the newly introduced 3D-Painting process with traditional salt-leaching. The synthesis and resulting properties of three 3D-printable inks comprised of varying volume ratios (25:75, 50:50, 70:30) of CuSO4 salt and polylactide-co-glycolide (PLGA), as well as their as-printed and salt-leached counterparts, are discussed. The resulting materials are comprised entirely of PLGA (F-PLGA), but exhibit porosities proportional to the original CuSO4 content. The three distinct F-PLGA materials exhibit average porosities of 66.6-94.4%, elastic moduli of 112.6-2.7 MPa, and absorbency of 195.7-742.2%. Studies with adult human mesenchymal stem cells (hMSCs) demonstrated that elevated porosity substantially promotes cell adhesion, viability, and proliferation. F-PLGA can also act as carriers for weak, naturally or synthetically-derived hydrogels. Finally, we show that this process can be extended to other materials including graphene, metals, and ceramics. STATEMENT OF SIGNIFICANCE Porosity plays an essential role in the performance and function of biomaterials, tissue engineering, and clinical medicine. For the same material chemistry, the level of porosity can dictate if it is cell, tissue, or organ friendly; with low porosity materials being far less favorable than high porosity materials. Despite its importance, it has been difficult to create three-dimensionally printed structures that are comprised of materials that have extremely high levels of internal porosity yet are surgically friendly (able to handle and utilize during surgical operations). In this work, we extend a new materials-centric approach to 3D-printing, 3D-Painting, to 3D-printing structures made almost entirely out of water-soluble salt. The structures are then washed in a specific way that not only extracts the salt but causes the structures to increase in size. With the salt removed, the resulting medical polymer structures are almost entirely porous and contain very little solid material, but the maintain their 3D-printed form and are highly compatible with adult human stem cells, are mechanically robust enough to use in surgical manipulations, and can be filled with and act as carriers for biologically active liquids and gels. We can also extend this process to three-dimensionally printing other porous materials, such as graphene, metals, and even ceramics.
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184
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Stephenson MK, Farris AL, Grayson WL. Recent Advances in Tissue Engineering Strategies for the Treatment of Joint Damage. Curr Rheumatol Rep 2018; 19:44. [PMID: 28718059 DOI: 10.1007/s11926-017-0671-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW While the clinical potential of tissue engineering for treating joint damage has yet to be realized, research and commercialization efforts in the field are geared towards overcoming major obstacles to clinical translation, as well as towards achieving engineered grafts that recapitulate the unique structures, function, and physiology of the joint. In this review, we describe recent advances in technologies aimed at obtaining biomaterials, stem cells, and bioreactors that will enable the development of effective tissue-engineered treatments for repairing joint damage. RECENT FINDINGS 3D printing of scaffolds is aimed at improving the mechanical structure and microenvironment necessary for bone regeneration within a damaged joint. Advances in our understanding of stem cell biology and cell manufacturing processes are informing translational strategies for the therapeutic use of allogeneic and autologous cells. Finally, bioreactors used in combination with cells and biomaterials are promising strategies for generating large tissue grafts for repairing damaged tissues in pre-clinical models. Together, these advances along with ongoing research directions are making tissue engineering increasingly viable for the treatment of joint damage.
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Affiliation(s)
- Makeda K Stephenson
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, 400 N. Broadway, Smith Building 5023, Baltimore, MD, 21231, USA.,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ashley L Farris
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, 400 N. Broadway, Smith Building 5023, Baltimore, MD, 21231, USA.,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Warren L Grayson
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, 400 N. Broadway, Smith Building 5023, Baltimore, MD, 21231, USA. .,Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA. .,Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, USA. .,Institute for NanoBioTechnology, Johns Hopkins University, Baltimore, MD, USA.
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185
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3D Printing Applications in Minimally Invasive Spine Surgery. Minim Invasive Surg 2018; 2018:4760769. [PMID: 29805806 PMCID: PMC5899854 DOI: 10.1155/2018/4760769] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 02/26/2018] [Indexed: 11/18/2022] Open
Abstract
3D printing (3DP) technology continues to gain popularity among medical specialties as a useful tool to improve patient care. The field of spine surgery is one discipline that has utilized this; however, information regarding the use of 3DP in minimally invasive spine surgery (MISS) is limited. 3D printing is currently being utilized in spine surgery to create biomodels, hardware templates and guides, and implants. Minimally invasive spine surgeons have begun to adopt 3DP technology, specifically with the use of biomodeling to optimize preoperative planning. Factors limiting widespread adoption of 3DP include increased time, cost, and the limited range of diagnoses in which 3DP has thus far been utilized. 3DP technology has become a valuable tool utilized by spine surgeons, and there are limitless directions in which this technology can be applied to minimally invasive spine surgery.
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186
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Jordahl JH, Solorio L, Sun H, Ramcharan S, Teeple CB, Haley HR, Lee KJ, Eyster TW, Luker GD, Krebsbach PH, Lahann J. 3D Jet Writing: Functional Microtissues Based on Tessellated Scaffold Architectures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1707196. [PMID: 29484715 PMCID: PMC6112611 DOI: 10.1002/adma.201707196] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 01/07/2018] [Indexed: 05/21/2023]
Abstract
The advent of adaptive manufacturing techniques supports the vision of cell-instructive materials that mimic biological tissues. 3D jet writing, a modified electrospinning process reported herein, yields 3D structures with unprecedented precision and resolution offering customizable pore geometries and scalability to over tens of centimeters. These scaffolds support the 3D expansion and differentiation of human mesenchymal stem cells in vitro. Implantation of these constructs leads to the healing of critical bone defects in vivo without exogenous growth factors. When applied as a metastatic target site in mice, circulating cancer cells home in to the osteogenic environment simulated on 3D jet writing scaffolds, despite implantation in an anatomically abnormal site. Through 3D jet writing, the formation of tessellated microtissues is demonstrated, which serve as a versatile 3D cell culture platform in a range of biomedical applications including regenerative medicine, cancer biology, and stem cell biotechnology.
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Affiliation(s)
- Jacob H. Jordahl
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Luis Solorio
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Hongli Sun
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Stacy Ramcharan
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Clark B. Teeple
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Henry R. Haley
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Kyung Jin Lee
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Thomas W. Eyster
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Gary D. Luker
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Paul H. Krebsbach
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
| | - Joerg Lahann
- Biointerfaces Institute, NCRC B10-A175, 2800 Plymouth Rd, Ann Arbor, MI 48109,
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187
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Baillargeon KR, Meserve K, Faulkner S, Watson S, Butts H, Deighan P, Gerdon AE. Precipitation SELEX: identification of DNA aptamers for calcium phosphate materials synthesis. Chem Commun (Camb) 2018; 53:1092-1095. [PMID: 28045140 DOI: 10.1039/c6cc08687j] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
DNA aptamers that enhance calcium phosphate mineral formation were identified using a novel precipitation SELEX method. The evolved DNA library was substantially enriched in G nucleotides and in predicted G-quadruplex structures, suggesting their importance in the mechanism of mineralization. This work could readily be extended to provide additional novel DNA aptamers for materials synthesis.
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Affiliation(s)
- K R Baillargeon
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - K Meserve
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - S Faulkner
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - S Watson
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - H Butts
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
| | - P Deighan
- Department of Biology, Emmanuel College, 400 The Fenway, Boston, MA, USA
| | - A E Gerdon
- Department of Chemistry and Physics, Emmanuel College, 400 The Fenway, Boston, MA, USA.
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188
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Li JJ, Ebied M, Xu J, Zreiqat H. Current Approaches to Bone Tissue Engineering: The Interface between Biology and Engineering. Adv Healthc Mater 2018; 7:e1701061. [PMID: 29280321 DOI: 10.1002/adhm.201701061] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 11/15/2017] [Indexed: 01/17/2023]
Abstract
The successful regeneration of bone tissue to replace areas of bone loss in large defects or at load-bearing sites remains a significant clinical challenge. Over the past few decades, major progress is achieved in the field of bone tissue engineering to provide alternative therapies, particularly through approaches that are at the interface of biology and engineering. To satisfy the diverse regenerative requirements of bone tissue, the field moves toward highly integrated approaches incorporating the knowledge and techniques from multiple disciplines, and typically involves the use of biomaterials as an essential element for supporting or inducing bone regeneration. This review summarizes the types of approaches currently used in bone tissue engineering, beginning with those primarily based on biology or engineering, and moving into integrated approaches in the areas of biomaterial developments, biomimetic design, and scalable methods for treating large or load-bearing bone defects, while highlighting potential areas for collaboration and providing an outlook on future developments.
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Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Raymond Purves Bone and Joint Research Laboratories Kolling Institute Northern Sydney Local Health District Sydney Medical School Northern University of Sydney St Leonards NSW 2065 Australia
| | - Mohamed Ebied
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
| | - Jen Xu
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
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189
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Yuk H, Zhao X. A New 3D Printing Strategy by Harnessing Deformation, Instability, and Fracture of Viscoelastic Inks. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:1704028. [PMID: 29239049 DOI: 10.1002/adma.201704028] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 10/22/2017] [Indexed: 06/07/2023]
Abstract
Direct ink writing (DIW) has demonstrated great potential as a multimaterial multifunctional fabrication method in areas as diverse as electronics, structural materials, tissue engineering, and soft robotics. During DIW, viscoelastic inks are extruded out of a 3D printer's nozzle as printed fibers, which are deposited into patterns when the nozzle moves. Hence, the resolution of printed fibers is commonly limited by the nozzle's diameter, and the printed pattern is limited by the motion paths. These limits have severely hampered innovations and applications of DIW 3D printing. Here, a new strategy to exceed the limits of DIW 3D printing by harnessing deformation, instability, and fracture of viscoelastic inks is reported. It is shown that a single nozzle can print fibers with resolution much finer than the nozzle diameter by stretching the extruded ink, and print various thickened or curved patterns with straight nozzle motions by accumulating the ink. A quantitative phase diagram is constructed to rationally select parameters for the new strategy. Further, applications including structures with tunable stiffening, 3D structures with gradient and programmable swelling properties, all printed with a single nozzle are demonstrated. The current work demonstrates that the mechanics of inks plays a critical role in developing 3D printing technology.
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Affiliation(s)
- Hyunwoo Yuk
- Soft Active Materials Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Xuanhe Zhao
- Soft Active Materials Laboratory, Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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190
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Alluri R, Jakus A, Bougioukli S, Pannell W, Sugiyama O, Tang A, Shah R, Lieberman JR. 3D printed hyperelastic "bone" scaffolds and regional gene therapy: A novel approach to bone healing. J Biomed Mater Res A 2018; 106:1104-1110. [PMID: 29266747 DOI: 10.1002/jbm.a.36310] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/09/2017] [Accepted: 12/15/2017] [Indexed: 01/11/2023]
Abstract
The purpose of this study was to evaluate the viability of human adipose-derived stem cells (ADSCs) transduced with a lentiviral (LV) vector to overexpress bone morphogenetic protein-2 (BMP-2) loaded onto a novel 3D printed scaffold. Human ADSCs were transduced with a LV vector carrying the cDNA for BMP-2. The transduced cells were loaded onto a 3D printed Hyperelastic "Bone" (HB) scaffold. In vitro BMP-2 production was assessed using enzyme-linked immunosorbent assay analysis. The ability of ADSCs loaded on the HB scaffold to induce in vivo bone formation in a hind limb muscle pouch model was assessed in the following groups: ADSCs transduced with LV-BMP-2, LV-green fluorescent protein, ADSCs alone, and empty HB scaffolds. Bone formation was assessed using radiographs, histology and histomorphometry. Transduced ADSCs BMP-2 production on the HB scaffold at 24 hours was similar on 3D printed HB scaffolds versus control wells with transduced cells alone, and continued to increase after 1 and 2 weeks of culture. Bone formation was noted in LV-BMP-2 animals on plain radiographs at 2 and 4 weeks after implantation; no bone formation was noted in the other groups. Histology demonstrated that the LV-BMP-2 group was the only group that formed woven bone and the mean bone area/tissue area was significantly greater when compared with the other groups. 3D printed HB scaffolds are effective carriers for transduced ADSCs to promote bone repair. The combination of gene therapy and tissue engineered scaffolds is a promising multidisciplinary approach to bone repair with significant clinical potential. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1104-1110, 2018.
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Affiliation(s)
- Ram Alluri
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, 2011 Zonal Ave, HMR 702, Los Angeles, California, 90089
| | - Adam Jakus
- Department of Materials Science and Engineering, Northwestern University, 303 E. Superior St., 11th Floor, Chicago, Illinois, 60611.,Department of Materials Science and Engineering, Northwestern University, 2220 Campus Dr., Evanston, IL, 60208.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, IL, 60611
| | - Sofia Bougioukli
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, 2011 Zonal Ave, HMR 702, Los Angeles, California, 90089
| | - William Pannell
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, 2011 Zonal Ave, HMR 702, Los Angeles, California, 90089
| | - Osamu Sugiyama
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, 2011 Zonal Ave, HMR 702, Los Angeles, California, 90089
| | - Amy Tang
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, 2011 Zonal Ave, HMR 702, Los Angeles, California, 90089
| | - Ramille Shah
- Department of Materials Science and Engineering, Northwestern University, 2220 Campus Dr., Evanston, IL, 60208.,Simpson Querrey Institute for BioNanotechnology, Northwestern University, 303 E Superior St., Chicago, IL, 60611.,Department of Biomedical Engineering, Northwestern University, 2145 Sheridan Rd., Evanston, IL, 60208.,Department of Surgery, Division of Organ Transplantation, Northwestern University, 251 E Huron St., Chicago, IL, 60611
| | - Jay R Lieberman
- Department of Orthopaedic Surgery, Keck School of Medicine of the University of Southern California, 2011 Zonal Ave, HMR 702, Los Angeles, California, 90089
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191
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Liu F, Liu C, Chen Q, Ao Q, Tian X, Fan J, Tong H, Wang X. Progress in organ 3D bioprinting. Int J Bioprint 2018; 4:128. [PMID: 33102911 PMCID: PMC7582006 DOI: 10.18063/ijb.v4i1.128] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 12/01/2017] [Indexed: 12/21/2022] Open
Abstract
Three dimensional (3D) printing is a hot topic in today's scientific, technological and commercial areas. It is recognized as the main field which promotes "the Third Industrial Revolution". Recently, human organ 3D bioprinting has been put forward into equity market as a concept stock and attracted a lot of attention. A large number of outstanding scientists have flung themselves into this field and made some remarkable headways. Nevertheless, organ 3D bioprinting is a sophisticated manufacture procedure which needs profound scientific/technological backgrounds/knowledges to accomplish. Especially, large organ 3D bioprinting encounters enormous difficulties and challenges. One of them is to build implantable branched vascular networks in a predefined 3D construct. At present, organ 3D bioprinting still in its infancy and a great deal of work needs to be done. Here we briefly overview some of the achievements of 3D bioprinting technologies in large organ, such as the bone, liver, heart, cartilage and skin, manufacturing.
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Affiliation(s)
- Fan Liu
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
- Department of Orthodontics, School of Stomatology, China Medical University, Shenyang, China
| | - Chen Liu
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
| | - Qiuhong Chen
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
| | - Qiang Ao
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
| | - Xiaohong Tian
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
| | - Jun Fan
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
| | - Hao Tong
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
| | - Xiaohong Wang
- Department of Tissue Engineering, Center of 3D Printing and Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), Shenyang, China
- Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing, P.R. China
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192
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Park SH, Choi YJ, Moon SW, Lee BH, Shim JH, Cho DW, Wang JH. Three-Dimensional Bio-Printed Scaffold Sleeves With Mesenchymal Stem Cells for Enhancement of Tendon-to-Bone Healing in Anterior Cruciate Ligament Reconstruction Using Soft-Tissue Tendon Graft. Arthroscopy 2018; 34:166-179. [PMID: 28688825 DOI: 10.1016/j.arthro.2017.04.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 04/04/2017] [Accepted: 04/12/2017] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate the efficacy of the insertion of 3-dimensional (3D) bio-printed scaffold sleeves seeded with mesenchymal stem cells (MSCs) to enhance osteointegration between the tendon and tunnel bone in anterior cruciate ligament (ACL) reconstruction in a rabbit model. METHODS Scaffold sleeves were fabricated by 3D bio-printing. Before ACL reconstruction, MSCs were seeded into the scaffold sleeves. ACL reconstruction with hamstring tendon was performed on both legs of 15 adult rabbits (aged 12 weeks). We implanted 15 bone tunnels with scaffold sleeves with MSCs and implanted another 15 bone tunnels with scaffold sleeves without MSCs before passing the graft. The specimens were harvested at 4, 8, and 12 weeks. H&E staining, immunohistochemical staining of type II collagen, and micro-computed tomography of the tunnel cross-sectional area were evaluated. Histologic assessment was conducted with a histologic scoring system. RESULTS In the histologic assessment, a smooth bone-to-tendon transition through broad fibrocartilage formation was identified in the treatment group, and the interface zone showed abundant type II collagen production on immunohistochemical staining. Bone-tendon healing histologic scores were significantly higher in the treatment group than in the control group at all time points. Micro-computed tomography at 12 weeks showed smaller tibial (control, 9.4 ± 0.9 mm2; treatment, 5.8 ± 2.9 mm2; P = .044) and femoral (control, 9.6 ± 2.9 mm2; treatment, 6.0 ± 1.0 mm2; P = .03) bone-tunnel areas in the treated group than in the control group. CONCLUSIONS The 3D bio-printed scaffold sleeve with MSCs exhibited excellent results in osteointegration enhancement between the tendon and tunnel bone in ACL reconstruction in a rabbit model. CLINICAL RELEVANCE If secure biological healing between the tendon graft and tunnel bone can be induced in the early postoperative period, earlier, more successful rehabilitation may be facilitated. Three-dimensional bio-printed scaffold sleeves with MSCs have the potential to accelerate bone-tendon healing in ACL reconstruction.
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Affiliation(s)
- Sin Hyung Park
- Department of Orthopaedic Surgery, Soonchunhyang University School of Medicine, Bucheon Hospital, Bucheon, Republic of Korea
| | - Yeong-Jin Choi
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea
| | - Sang Won Moon
- Department of Orthopaedic Surgery, Inje University School of Medicine, Haeundae Paik Hospital, Busan, Republic of Korea
| | - Byung Hoon Lee
- Department of Orthopaedic Surgery, Hallym University School of Medicine, Kangdong Sacred Heart Hospital, Seoul, Republic of Korea
| | - Jin-Hyung Shim
- Department of Mechanical Engineering, Korea Polytechnic University, Siheung, Republic of Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Republic of Korea.
| | - Joon Ho Wang
- Department of Orthopaedic Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Seoul, Republic of Korea.
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193
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Duarte RM, Varanda P, Reis RL, Duarte ARC, Correia-Pinto J. Biomaterials and Bioactive Agents in Spinal Fusion. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:540-551. [DOI: 10.1089/ten.teb.2017.0072] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Rui M. Duarte
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Pedro Varanda
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Orthopedic Surgery Department, Hospital de Braga, Braga, Portugal
| | - Rui L. Reis
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Ana Rita C. Duarte
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Barco, Portugal
| | - Jorge Correia-Pinto
- School of Medicine, University of Minho, Braga, Portugal
- Life and Health Sciences Research Institute (ICVS), School of Medicine, University of Minho, Braga, Portugal
- ICVS/3B's—PT Government Associate Laboratory, Braga/Guimarães, Portugal
- Pediatric Surgery Department, Hospital de Braga, Braga, Portugal
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194
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Kim HD, Amirthalingam S, Kim SL, Lee SS, Rangasamy J, Hwang NS. Biomimetic Materials and Fabrication Approaches for Bone Tissue Engineering. Adv Healthc Mater 2017; 6. [PMID: 29171714 DOI: 10.1002/adhm.201700612] [Citation(s) in RCA: 163] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Revised: 10/09/2017] [Indexed: 01/14/2023]
Abstract
Various strategies have been explored to overcome critically sized bone defects via bone tissue engineering approaches that incorporate biomimetic scaffolds. Biomimetic scaffolds may provide a novel platform for phenotypically stable tissue formation and stem cell differentiation. In recent years, osteoinductive and inorganic biomimetic scaffold materials have been optimized to offer an osteo-friendly microenvironment for the osteogenic commitment of stem cells. Furthermore, scaffold structures with a microarchitecture design similar to native bone tissue are necessary for successful bone tissue regeneration. For this reason, various methods for fabricating 3D porous structures have been developed. Innovative techniques, such as 3D printing methods, are currently being utilized for optimal host stem cell infiltration, vascularization, nutrient transfer, and stem cell differentiation. In this progress report, biomimetic materials and fabrication approaches that are currently being utilized for biomimetic scaffold design are reviewed.
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Affiliation(s)
- Hwan D. Kim
- School of Chemical and Biological Engineering; The Institute of Chemical Processes; Seoul National University; Seoul 151-742 Republic of Korea
| | | | - Seunghyun L. Kim
- Interdisciplinary Program in Bioengineering; Seoul National University; Seoul 151-742 Republic of Korea
| | - Seunghun S. Lee
- Interdisciplinary Program in Bioengineering; Seoul National University; Seoul 151-742 Republic of Korea
| | - Jayakumar Rangasamy
- Centre for Nanosciences and Molecular Medicine; Amrita University; Kochi 682041 India
| | - Nathaniel S. Hwang
- School of Chemical and Biological Engineering; The Institute of Chemical Processes; Seoul National University; Seoul 151-742 Republic of Korea
- Interdisciplinary Program in Bioengineering; Seoul National University; Seoul 151-742 Republic of Korea
- The BioMax Institute of Seoul National University; Seoul 151-742 Republic of Korea
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195
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Vanderburgh J, Fernando S, Merkel A, Sterling J, Guelcher S. Fabrication of Trabecular Bone-Templated Tissue-Engineered Constructs by 3D Inkjet Printing. Adv Healthc Mater 2017; 6:10.1002/adhm.201700369. [PMID: 28892261 PMCID: PMC5815519 DOI: 10.1002/adhm.201700369] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/24/2017] [Indexed: 12/20/2022]
Abstract
3D printing enables the creation of scaffolds with precisely controlled morphometric properties for multiple tissue types, including musculoskeletal tissues such as cartilage and bone. Computed tomography (CT) imaging has been combined with 3D printing to fabricate anatomically scaled patient-specific scaffolds for bone regeneration. However, anatomically scaled scaffolds typically lack sufficient resolution to recapitulate the <100 micrometer-scale trabecular architecture essential for investigating the cellular response to the morphometric properties of bone. In this study, it is hypothesized that the architecture of trabecular bone regulates osteoblast differentiation and mineralization. To test this hypothesis, human bone-templated 3D constructs are fabricated via a new micro-CT/3D inkjet printing process. It is shown that this process reproducibly fabricates bone-templated constructs that recapitulate the anatomic site-specific morphometric properties of trabecular bone. A significant correlation is observed between the structure model index (a morphometric parameter related to surface curvature) and the degree of mineralization of human mesenchymal stem cells, with more concave surfaces promoting more extensive osteoblast differentiation and mineralization compared to predominately convex surfaces. These findings highlight the significant effects of trabecular architecture on osteoblast function.
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Affiliation(s)
- Joseph Vanderburgh
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Shanik Fernando
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Alyssa Merkel
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37235, USA
- Department of Veterans Affairs, Tennessee Valley Healthcare System (VISN 9), Nashville, TN, USA
| | - Julie Sterling
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37235, USA
- Department of Veterans Affairs, Tennessee Valley Healthcare System (VISN 9), Nashville, TN, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Scott Guelcher
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, TN 37235, USA
- Vanderbilt Center for Bone Biology, Vanderbilt University Medical Center, Nashville, TN 37235, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
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196
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Maggi A, Li H, Greer JR. Three-dimensional nano-architected scaffolds with tunable stiffness for efficient bone tissue growth. Acta Biomater 2017; 63:294-305. [PMID: 28923538 DOI: 10.1016/j.actbio.2017.09.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/19/2017] [Accepted: 09/07/2017] [Indexed: 01/25/2023]
Abstract
The precise mechanisms that lead to orthopedic implant failure are not well understood; it is believed that the micromechanical environment at the bone-implant interface regulates structural stability of an implant. In this work, we seek to understand how the 3D mechanical environment of an implant affects bone formation during early osteointegration. We employed two-photon lithography (TPL) direct laser writing to fabricate 3-dimensional rigid polymer scaffolds with tetrakaidecahedral periodic geometry, herewith referred to as nanolattices, whose strut dimensions were on the same order as osteoblasts' focal adhesions (∼2μm) and pore sizes on the order of cell size, ∼10μm. Some of these nanolattices were subsequently coated with thin conformal layers of Ti or W, and a final outer layer of 18nm-thick TiO2 was deposited on all samples to ensure biocompatibility. Nanomechanical experiments on each type of nanolattice revealed the range of stiffnesses of 0.7-100MPa. Osteoblast-like cells (SAOS-2) were seeded on each nanolattice, and their mechanosensitve response was explored by tracking mineral secretions and intracellular f-actin and vinculin concentrations after 2, 8 and 12days of cell culture in mineralization media. Experiments revealed that the most compliant nanolattices had ∼20% more intracellular f-actin and ∼40% more Ca and P secreted onto them than the stiffer nanolattices, where such cellular response was virtually indistinguishable. We constructed a simple phenomenological model that appears to capture the observed relation between scaffold stiffness and f-actin concentration. This model predicts a range of optimal scaffold stiffnesses for maximum f-actin concentration, which appears to be directly correlated with osteoblast-driven mineral deposition. This work suggests that three-dimensional scaffolds with titania-coated surfaces may provide an optimal microenvironment for cell growth when their stiffness is similar to that of cartilage (∼0.5-3MPa). These findings help provide a greater understanding of osteoblast mechanosensitivity and may have profound implications in developing more effective and safer bone prostheses. STATEMENT OF SIGNIFICANCE Creating prostheses that lead to optimal bone remodeling has been a challenge for more than two decades because of a lack of thorough knowledge of cell behavior in three-dimensional (3D) environments. Literature has shown that 2D substrate stiffness plays a significant role in determining cell behavior, however, limitations in fabrication techniques and difficulties in characterizing cell-scaffold interactions have limited our understanding of how 3D scaffolds' stiffness affects cell response. The present study shows that scaffold structural stiffness affects osteoblasts cellular response. Specifically this work shows that the cells grown on the most compliant nanolattices with a stiffness of 0.7MPa expressed ∼20% higher concentration of intracellular f-actin and secreted ∼40% more Ca and P compared with all other nanolattices. This suggests that bone scaffolds with a stiffness close to that of cartilage may serve as optimal 3D scaffolds for new synthetic bone graft materials.
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197
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Taraballi F, Bauza G, McCulloch P, Harris J, Tasciotti E. Concise Review: Biomimetic Functionalization of Biomaterials to Stimulate the Endogenous Healing Process of Cartilage and Bone Tissue. Stem Cells Transl Med 2017; 6:2186-2196. [PMID: 29080279 PMCID: PMC5702525 DOI: 10.1002/sctm.17-0181] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/04/2017] [Indexed: 12/13/2022] Open
Abstract
Musculoskeletal reconstruction is an ongoing challenge for surgeons as it is required for one out of five patients undergoing surgery. In the past three decades, through the close collaboration between clinicians and basic scientists, several regenerative strategies have been proposed. These have emerged from interdisciplinary approaches that bridge tissue engineering with material science, physiology, and cell biology. The paradigm behind tissue engineering is to achieve regeneration and functional recovery using stem cells, bioactive molecules, or supporting materials. Although plenty of preclinical solutions for bone and cartilage have been presented, only a few platforms have been able to move from the bench to the bedside. In this review, we highlight the limitations of musculoskeletal regeneration and summarize the most relevant acellular tissue engineering approaches. We focus on the strategies that could be most effectively translate in clinical practice and reflect on contemporary and cutting‐edge regenerative strategies in surgery. Stem Cells Translational Medicine2017;6:2186–2196
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Affiliation(s)
- Francesca Taraballi
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, USA.,Department of Orthopedic & Sports Medicine, The Houston Methodist Hospital, Houston, Texas, USA
| | - Guillermo Bauza
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, USA.,Center for NanoHealth, Swansea University Medical School, Swansea University Bay, Singleton Park, Wales, United Kingdom
| | - Patrick McCulloch
- Department of Orthopedic & Sports Medicine, The Houston Methodist Hospital, Houston, Texas, USA
| | - Josh Harris
- Department of Orthopedic & Sports Medicine, The Houston Methodist Hospital, Houston, Texas, USA
| | - Ennio Tasciotti
- Center for Biomimetic Medicine, Houston Methodist Research Institute, Houston, Texas, USA.,Department of Orthopedic & Sports Medicine, The Houston Methodist Hospital, Houston, Texas, USA.,Center for NanoHealth, Swansea University Medical School, Swansea University Bay, Singleton Park, Wales, United Kingdom
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198
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Yu J, Xu Y, Li S, Seifert GV, Becker ML. Three-Dimensional Printing of Nano Hydroxyapatite/Poly(ester urea) Composite Scaffolds with Enhanced Bioactivity. Biomacromolecules 2017; 18:4171-4183. [PMID: 29020441 DOI: 10.1021/acs.biomac.7b01222] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polymer-bioceramic composites incorporate the desirable properties of each material while mitigating the limiting characteristics of each component. 1,6-Hexanediol l-phenylalanine-based poly(ester urea) (PEU) blended with hydroxyapatite (HA) nanocrystals were three-dimensional (3D) printed into porous scaffolds (75% porosity) via fused deposition modeling and seeded with MC3T3-E1 preosteoblast cells in vitro to examine their bioactivity. The resulting 3D printed scaffolds exhibited a compressive modulus of ∼50 MPa after a 1-week incubation in PBS at 37 °C, cell viability >95%, and a composition-dependent enhancement of radio-contrast. The influence of HA on MC3T3-E1 proliferation and differentiation was measured using quantitative real-time polymerase chain reaction, immunohistochemistry and biochemical assays. After 4 weeks, alkaline phosphatase activity increased significantly for the 30% HA composite with values reaching 2.5-fold greater than the control. Bone sialoprotein showed approximately 880-fold higher expression and 15-fold higher expression of osteocalcin on the 30% HA composite compared to those of the control. Calcium quantification results demonstrated a 185-fold increase of calcium concentration in mineralized extracellular matrix deposition after 4 weeks of cell culture in samples with higher HA content. 3D printed HA-containing PEU composites promote bone regeneration and have the potential to be used in orthopedic applications.
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Affiliation(s)
- Jiayi Yu
- Department of Polymer Science and ∥Department of Biomedical Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Yanyi Xu
- Department of Polymer Science and ∥Department of Biomedical Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Shan Li
- Department of Polymer Science and ∥Department of Biomedical Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Gabrielle V Seifert
- Department of Polymer Science and ∥Department of Biomedical Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Matthew L Becker
- Department of Polymer Science and ∥Department of Biomedical Engineering, The University of Akron , Akron, Ohio 44325, United States
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199
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Groen WM, Diloksumpan P, van Weeren PR, Levato R, Malda J. From intricate to integrated: Biofabrication of articulating joints. J Orthop Res 2017; 35:2089-2097. [PMID: 28621834 PMCID: PMC5655743 DOI: 10.1002/jor.23602] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 04/28/2017] [Indexed: 02/04/2023]
Abstract
Articulating joints owe their function to the specialized architecture and the complex interplay between multiple tissues including cartilage, bone and synovium. Especially the cartilage component has limited self-healing capacity and damage often leads to the onset of osteoarthritis, eventually resulting in failure of the joint as an organ. Although in its infancy, biofabrication has emerged as a promising technology to reproduce the intricate organization of the joint, thus enabling the introduction of novel surgical treatments, regenerative therapies, and new sets of tools to enhance our understanding of joint physiology and pathology. Herein, we address the current challenges to recapitulate the complexity of articulating joints and how biofabrication could overcome them. The combination of multiple materials, biological cues and cells in a layer-by-layer fashion, can assist in reproducing both the zonal organization of cartilage and the gradual transition from resilient cartilage toward the subchondral bone in biofabricated osteochondral grafts. In this way, optimal integration of engineered constructs with the natural surrounding tissues can be obtained. Mechanical characteristics, including the smoothness and low friction that are hallmarks of the articular surface, can be tuned with multi-head or hybrid printers by controlling the spatial patterning of printed structures. Moreover, biofabrication can use digital medical images as blueprints for printing patient-specific implants. Finally, the current rapid advances in biofabrication hold significant potential for developing joint-on-a-chip models for personalized medicine and drug testing or even for the creation of implants that may be used to treat larger parts of the articulating joint. © 2017 The Authors. Journal of Orthopaedic Research Published by Wiley Periodicals, Inc. on behalf of the Orthopaedic Research Society. J Orthop Res 35:2089-2097, 2017.
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Affiliation(s)
| | - Paweena Diloksumpan
- Faculty of Veterinary MedicineDepartment of Equine SciencesUtrechtThe Netherlands
| | - Paul René van Weeren
- Faculty of Veterinary MedicineDepartment of Equine SciencesUtrechtThe Netherlands
| | - Riccardo Levato
- Department of OrthopaedicsUniversity Medical Centre UtrechtPO Box 85500, 3508 GAUtrechtThe Netherlands
| | - Jos Malda
- Department of OrthopaedicsUniversity Medical Centre UtrechtPO Box 85500, 3508 GAUtrechtThe Netherlands
- Faculty of Veterinary MedicineDepartment of Equine SciencesUtrechtThe Netherlands
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Affiliation(s)
- Zilu Wang
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Heyi Liang
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
| | - Andrey V. Dobrynin
- Department of Polymer Science, University of Akron, Akron, Ohio 44325, United States
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