1
|
Bosmans C, Ginés Rodriguez N, Karperien M, Malda J, Moreira Teixeira L, Levato R, Leijten J. Towards single-cell bioprinting: micropatterning tools for organ-on-chip development. Trends Biotechnol 2024; 42:739-759. [PMID: 38310021 DOI: 10.1016/j.tibtech.2023.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 02/05/2024]
Abstract
Organs-on-chips (OoCs) hold promise to engineer progressively more human-relevant in vitro models for pharmaceutical purposes. Recent developments have delivered increasingly sophisticated designs, yet OoCs still lack in reproducing the inner tissue physiology required to fully resemble the native human body. This review emphasizes the need to include microarchitectural and microstructural features, and discusses promising avenues to incorporate well-defined microarchitectures down to the single-cell level. We highlight how their integration will significantly contribute to the advancement of the field towards highly organized structural and hierarchical tissues-on-chip. We discuss the combination of state-of-the-art micropatterning technologies to achieve OoCs resembling human-intrinsic complexity. It is anticipated that these innovations will yield significant advances in realization of the next generation of OoC models.
Collapse
Affiliation(s)
- Cécile Bosmans
- Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands
| | - Núria Ginés Rodriguez
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Marcel Karperien
- Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands
| | - Liliana Moreira Teixeira
- Department of Advanced Organ bioengineering and Therapeutics, University of Twente, Enschede, The Netherlands.
| | - Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht, The Netherlands; Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
| | - Jeroen Leijten
- Department of Developmental BioEngineering, University of Twente, Enschede, The Netherlands.
| |
Collapse
|
2
|
Abbadessa A, Ronca A, Salerno A. Integrating bioprinting, cell therapies and drug delivery towards in vivo regeneration of cartilage, bone and osteochondral tissue. Drug Deliv Transl Res 2024; 14:858-894. [PMID: 37882983 DOI: 10.1007/s13346-023-01437-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2023] [Indexed: 10/27/2023]
Abstract
The biological and biomechanical functions of cartilage, bone and osteochondral tissue are naturally orchestrated by a complex crosstalk between zonally dependent cells and extracellular matrix components. In fact, this crosstalk involves biomechanical signals and the release of biochemical cues that direct cell fate and regulate tissue morphogenesis and remodelling in vivo. Three-dimensional bioprinting introduced a paradigm shift in tissue engineering and regenerative medicine, since it allows to mimic native tissue anisotropy introducing compositional and architectural gradients. Moreover, the growing synergy between bioprinting and drug delivery may enable to replicate cell/extracellular matrix reciprocity and dynamics by the careful control of the spatial and temporal patterning of bioactive cues. Although significant advances have been made in this direction, unmet challenges and open research questions persist. These include, among others, the optimization of scaffold zonality and architectural features; the preservation of the bioactivity of loaded active molecules, as well as their spatio-temporal release; the in vitro scaffold maturation prior to implantation; the pros and cons of each animal model and the graft-defect mismatch; and the in vivo non-invasive monitoring of new tissue formation. This work critically reviews these aspects and reveals the state of the art of using three-dimensional bioprinting, and its synergy with drug delivery technologies, to pattern the distribution of cells and/or active molecules in cartilage, bone and osteochondral engineered tissues. Most notably, this work focuses on approaches, technologies and biomaterials that are currently under in vivo investigations, as these give important insights on scaffold performance at the implantation site and its interaction/integration with surrounding tissues.
Collapse
Affiliation(s)
- Anna Abbadessa
- Center for Research in Molecular Medicine and Chronic Diseases (CiMUS), IDIS Research Institute, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
- Department of Pharmacology, Pharmacy and Pharmaceutical Technology, School of Pharmacy, Universidade de Santiago de Compostela, Campus Vida, Santiago de Compostela, Spain.
| | - Alfredo Ronca
- Institute of Polymers, Composites and Biomaterials, National Research Council, 80125, Naples, Italy.
| | - Aurelio Salerno
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II, 80125, Naples, Italy.
| |
Collapse
|
3
|
Yeo M, Sarkar A, Singh YP, Derman ID, Datta P, Ozbolat IT. Synergistic coupling between 3D bioprinting and vascularization strategies. Biofabrication 2023; 16:012003. [PMID: 37944186 PMCID: PMC10658349 DOI: 10.1088/1758-5090/ad0b3f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 09/27/2023] [Accepted: 11/09/2023] [Indexed: 11/12/2023]
Abstract
Three-dimensional (3D) bioprinting offers promising solutions to the complex challenge of vascularization in biofabrication, thereby enhancing the prospects for clinical translation of engineered tissues and organs. While existing reviews have touched upon 3D bioprinting in vascularized tissue contexts, the current review offers a more holistic perspective, encompassing recent technical advancements and spanning the entire multistage bioprinting process, with a particular emphasis on vascularization. The synergy between 3D bioprinting and vascularization strategies is crucial, as 3D bioprinting can enable the creation of personalized, tissue-specific vascular network while the vascularization enhances tissue viability and function. The review starts by providing a comprehensive overview of the entire bioprinting process, spanning from pre-bioprinting stages to post-printing processing, including perfusion and maturation. Next, recent advancements in vascularization strategies that can be seamlessly integrated with bioprinting are discussed. Further, tissue-specific examples illustrating how these vascularization approaches are customized for diverse anatomical tissues towards enhancing clinical relevance are discussed. Finally, the underexplored intraoperative bioprinting (IOB) was highlighted, which enables the direct reconstruction of tissues within defect sites, stressing on the possible synergy shaped by combining IOB with vascularization strategies for improved regeneration.
Collapse
Affiliation(s)
- Miji Yeo
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, United States of America
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, United States of America
| | - Anwita Sarkar
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Kolkata, West Bengal 700054, India
| | - Yogendra Pratap Singh
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, United States of America
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, United States of America
| | - Irem Deniz Derman
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, United States of America
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, United States of America
| | - Pallab Datta
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Kolkata, West Bengal 700054, India
| | - Ibrahim T Ozbolat
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA 16802, United States of America
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, United States of America
- Department of Biomedical Engineering, Penn State University, University Park, PA 16802, United States of America
- Materials Research Institute, Penn State University, University Park, PA 16802, United States of America
- Department of Neurosurgery, Penn State College of Medicine, Hershey, PA 17033, United States of America
- Penn State Cancer Institute, Penn State University, Hershey, PA 17033, United States of America
- Biotechnology Research and Application Center, Cukurova University, Adana 01130, Turkey
| |
Collapse
|
4
|
Han X, Saiding Q, Cai X, Xiao Y, Wang P, Cai Z, Gong X, Gong W, Zhang X, Cui W. Intelligent Vascularized 3D/4D/5D/6D-Printed Tissue Scaffolds. NANO-MICRO LETTERS 2023; 15:239. [PMID: 37907770 PMCID: PMC10618155 DOI: 10.1007/s40820-023-01187-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Accepted: 07/25/2023] [Indexed: 11/02/2023]
Abstract
Blood vessels are essential for nutrient and oxygen delivery and waste removal. Scaffold-repairing materials with functional vascular networks are widely used in bone tissue engineering. Additive manufacturing is a manufacturing technology that creates three-dimensional solids by stacking substances layer by layer, mainly including but not limited to 3D printing, but also 4D printing, 5D printing and 6D printing. It can be effectively combined with vascularization to meet the needs of vascularized tissue scaffolds by precisely tuning the mechanical structure and biological properties of smart vascular scaffolds. Herein, the development of neovascularization to vascularization to bone tissue engineering is systematically discussed in terms of the importance of vascularization to the tissue. Additionally, the research progress and future prospects of vascularized 3D printed scaffold materials are highlighted and presented in four categories: functional vascularized 3D printed scaffolds, cell-based vascularized 3D printed scaffolds, vascularized 3D printed scaffolds loaded with specific carriers and bionic vascularized 3D printed scaffolds. Finally, a brief review of vascularized additive manufacturing-tissue scaffolds in related tissues such as the vascular tissue engineering, cardiovascular system, skeletal muscle, soft tissue and a discussion of the challenges and development efforts leading to significant advances in intelligent vascularized tissue regeneration is presented.
Collapse
Affiliation(s)
- Xiaoyu Han
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, 250013, Shandong, People's Republic of China
| | - Qimanguli Saiding
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China
| | - Xiaolu Cai
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, Hubei, People's Republic of China
| | - Yi Xiao
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Peng Wang
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, 250013, Shandong, People's Republic of China
| | - Zhengwei Cai
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China
| | - Xuan Gong
- University of Texas Southwestern Medical Center, Dallas, TX, 75390-9096, USA
| | - Weiming Gong
- Department of Orthopedics, Jinan Central Hospital, Shandong First Medical University and Shandong Academy of Medical Sciences, 105 Jiefang Road, Lixia District, Jinan, 250013, Shandong, People's Republic of China.
| | - Xingcai Zhang
- School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA.
| | - Wenguo Cui
- Department of Orthopaedics, Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, People's Republic of China.
| |
Collapse
|
5
|
Ren B, Jiang Z, Murfee WL, Katz AJ, Siemann D, Huang Y. Realizations of vascularized tissues: From in vitro platforms to in vivo grafts. BIOPHYSICS REVIEWS 2023; 4:011308. [PMID: 36938117 PMCID: PMC10015415 DOI: 10.1063/5.0131972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 02/07/2023] [Indexed: 03/18/2023]
Abstract
Vascularization is essential for realizing thick and functional tissue constructs that can be utilized for in vitro study platforms and in vivo grafts. The vasculature enables the transport of nutrients, oxygen, and wastes and is also indispensable to organ functional units such as the nephron filtration unit, the blood-air barrier, and the blood-brain barrier. This review aims to discuss the latest progress of organ-like vascularized constructs with specific functionalities and realizations even though they are not yet ready to be used as organ substitutes. First, the human vascular system is briefly introduced and related design considerations for engineering vascularized tissues are discussed. Second, up-to-date creation technologies for vascularized tissues are summarized and classified into the engineering and cellular self-assembly approaches. Third, recent applications ranging from in vitro tissue models, including generic vessel models, tumor models, and different human organ models such as heart, kidneys, liver, lungs, and brain, to prevascularized in vivo grafts for implantation and anastomosis are discussed in detail. The specific design considerations for the aforementioned applications are summarized and future perspectives regarding future clinical applications and commercialization are provided.
Collapse
Affiliation(s)
- Bing Ren
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Zhihua Jiang
- Department of Surgery, University of Florida, Gainesville, Florida 32610, USA
| | - Walter Lee Murfee
- Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Adam J. Katz
- Department of Plastic and Reconstructive Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina 27157, USA
| | - Dietmar Siemann
- Department of Radiation Oncology, University of Florida, Gainesville, Florida 32610, USA
| | - Yong Huang
- Author to whom correspondence should be addressed:
| |
Collapse
|
6
|
A Drop-on-Demand Bioprinting Approach to Spatially Arrange Multiple Cell Types and Monitor Their Cell-Cell Interactions towards Vascularization Based on Endothelial Cells and Mesenchymal Stem Cells. Cells 2023; 12:cells12040646. [PMID: 36831313 PMCID: PMC9953911 DOI: 10.3390/cells12040646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/09/2023] [Accepted: 02/12/2023] [Indexed: 02/22/2023] Open
Abstract
Spheroids, organoids, or cell-laden droplets are often used as building blocks for bioprinting, but so far little is known about the spatio-temporal cellular interactions subsequent to printing. We used a drop-on-demand bioprinting approach to study the biological interactions of such building blocks in dimensions of micrometers. Highly-density droplets (approximately 700 cells in 10 nL) of multiple cell types were patterned in a 3D hydrogel matrix with a precision of up to 70 μm. The patterns were used to investigate interactions of endothelial cells (HUVECs) and adipose-derived mesenchymal stem cells (ASCs), which are related to vascularization. We demonstrated that a gap of 200 μm between HUVEC and ASC aggregates led to decreased sprouting of HUVECs towards ASCs and increased growth from ASCs towards HUVECs. For mixed aggregates containing both cell types, cellular interconnections of ASCs with lengths of up to approximately 800 µm and inhibition of HUVEC sprouting were observed. When ASCs were differentiated into smooth muscle cells (dASCs), separate HUVEC aggregates displayed decreased sprouting towards dASCs, whereas no cellular interconnections nor inhibition of HUVEC sprouting were detected for mixed dASCs/HUVEC aggregates. These findings demonstrate that our approach could be applied to investigate cell-cell interactions of different cell types in 3D co-cultures.
Collapse
|
7
|
Schulze F, Lang A, Schoon J, Wassilew GI, Reichert J. Scaffold Guided Bone Regeneration for the Treatment of Large Segmental Defects in Long Bones. Biomedicines 2023; 11:biomedicines11020325. [PMID: 36830862 PMCID: PMC9953456 DOI: 10.3390/biomedicines11020325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Bone generally displays a high intrinsic capacity to regenerate. Nonetheless, large osseous defects sometimes fail to heal. The treatment of such large segmental defects still represents a considerable clinical challenge. The regeneration of large bone defects often proves difficult, since it relies on the formation of large amounts of bone within an environment impedimental to osteogenesis, characterized by soft tissue damage and hampered vascularization. Consequently, research efforts have concentrated on tissue engineering and regenerative medical strategies to resolve this multifaceted challenge. In this review, we summarize, critically evaluate, and discuss present approaches in light of their clinical relevance; we also present future advanced techniques for bone tissue engineering, outlining the steps to realize for their translation from bench to bedside. The discussion includes the physiology of bone healing, requirements and properties of natural and synthetic biomaterials for bone reconstruction, their use in conjunction with cellular components and suitable growth factors, and strategies to improve vascularization and the translation of these regenerative concepts to in vivo applications. We conclude that the ideal all-purpose material for scaffold-guided bone regeneration is currently not available. It seems that a variety of different solutions will be employed, according to the clinical treatment necessary.
Collapse
Affiliation(s)
- Frank Schulze
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Annemarie Lang
- Departments of Orthopaedic Surgery & Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Janosch Schoon
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Georgi I. Wassilew
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Johannes Reichert
- Center for Orthopaedics, Trauma Surgery and Rehabilitation Medicine, University Medicine Greifswald, 17475 Greifswald, Germany
- Correspondence: ; Tel.: +49-3834-86-22530
| |
Collapse
|
8
|
de Silva L, Bernal PN, Rosenberg A, Malda J, Levato R, Gawlitta D. Biofabricating the vascular tree in engineered bone tissue. Acta Biomater 2023; 156:250-268. [PMID: 36041651 DOI: 10.1016/j.actbio.2022.08.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/22/2022] [Accepted: 08/23/2022] [Indexed: 01/18/2023]
Abstract
The development of tissue engineering strategies for treatment of large bone defects has become increasingly relevant, given the growing demand for bone substitutes. Native bone is composed of a dense vascular network necessary for the regulation of bone development, regeneration and homeostasis. A major obstacle in fabricating living, clinically relevant-sized bone mimics (1-10 cm3) is the limited supply of nutrients, including oxygen to the core of the construct. Therefore, strategies to support vascularization are pivotal for the development of tissue engineered bone constructs. Creating a functional bone construct integrated with a vascular network, capable of delivering the necessary nutrients for optimal tissue development is imperative for translation into the clinics. The vascular system is composed of a complex network that runs throughout the body in a tree-like hierarchical branching fashion. A significant challenge for tissue engineering approaches lies in mimicking the intricate, multi-scale structures consisting of larger vessels (macro-vessels) which interconnect with multiple sprouting vessels (microvessels) in a closed network. The advent of biofabrication has enabled complex, out of plane channels to be generated and has laid the groundwork for the creation of multi-scale vasculature in recent years. This review highlights the key state-of-the-art achievements for the development of vascular networks of varying scales in the field of biofabrication with a particular focus for its application in developing a functional tissue engineered bone construct. STATEMENT OF SIGNIFICANCE: There is a growing need for bone substitutes to overcome the limited supply of patient-derived bone. Bone tissue engineering aims to overcome this by combining stem cells with scaffolds to restore missing bone. The current bottleneck in upscaling is the lack of an integrated vascular network, required for the delivery of nutrients to cells. 3D bioprinting techniques has enabled the creation of complex hollow structures of varying dimensions that resemble native blood vessels. The convergence of multiple materials, cell types and fabrication approaches, opens the possibility of developing clinically-relevant sized vascularized bone constructs. This review provides an up-to-date insight of the technologies currently available for the generation of complex vascular networks, with a focus on their application in bone tissue engineering.
Collapse
Affiliation(s)
- Leanne de Silva
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, the Netherlands; Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, the Netherlands.
| | - Paulina N Bernal
- Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, the Netherlands; Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, the Netherlands
| | - Ajw Rosenberg
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, the Netherlands
| | - Jos Malda
- Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, the Netherlands; Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, the Netherlands; Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, the Netherlands
| | - Riccardo Levato
- Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, the Netherlands; Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, the Netherlands; Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, the Netherlands
| | - Debby Gawlitta
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, the Netherlands; Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, the Netherlands
| |
Collapse
|
9
|
Assad H, Assad A, Kumar A. Recent Developments in 3D Bio-Printing and Its Biomedical Applications. Pharmaceutics 2023; 15:pharmaceutics15010255. [PMID: 36678884 PMCID: PMC9861443 DOI: 10.3390/pharmaceutics15010255] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/07/2023] [Accepted: 01/09/2023] [Indexed: 01/13/2023] Open
Abstract
The fast-developing field of 3D bio-printing has been extensively used to improve the usability and performance of scaffolds filled with cells. Over the last few decades, a variety of tissues and organs including skin, blood vessels, and hearts, etc., have all been produced in large quantities via 3D bio-printing. These tissues and organs are not only able to serve as building blocks for the ultimate goal of repair and regeneration, but they can also be utilized as in vitro models for pharmacokinetics, drug screening, and other purposes. To further 3D-printing uses in tissue engineering, research on novel, suitable biomaterials with quick cross-linking capabilities is a prerequisite. A wider variety of acceptable 3D-printed materials are still needed, as well as better printing resolution (particularly at the nanoscale range), speed, and biomaterial compatibility. The aim of this study is to provide expertise in the most prevalent and new biomaterials used in 3D bio-printing as well as an introduction to the associated approaches that are frequently considered by researchers. Furthermore, an effort has been made to convey the most pertinent implementations of 3D bio-printing processes, such as tissue regeneration, etc., by providing the most significant research together with a comprehensive list of material selection guidelines, constraints, and future prospects.
Collapse
Affiliation(s)
- Humira Assad
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Punjab 144001, India
| | - Arvina Assad
- Bibi Halima College of Nursing and Medical Technology, Srinagar 190010, India
| | - Ashish Kumar
- Nalanda College of Engineering, Department of Science and Technology, Government of Bihar, Patna 803108, India
- Correspondence:
| |
Collapse
|
10
|
Akkermansia muciniphila ameliorates chronic kidney disease interstitial fibrosis via the gut-renal axis. Microb Pathog 2023; 174:105891. [PMID: 36427659 DOI: 10.1016/j.micpath.2022.105891] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 10/17/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022]
Abstract
CONTEXT Chronic kidney disease (CKD) affects approximately 10% of the global population. The abundance of Akkermansia muciniphila (AKK) is significantly reduced in CKD patients. OBJECTIVE This study investigated the effects of AKK bacteria on kidney damage and the renal interstitium in rats with CKD. MATERIALS AND METHODS CKD model 5/6 nephrectomy rats were used. CKD rats were supplemented with AKK (2 × 108 cfu/0.2 mL) for 8 weeks. RESULTS AKK administration significantly suppressed epithelial-mesenchymal transition (EMT), and high-throughput 16S rRNA pyrosequencing showed that AKK supplementation restored the disordered intestinal microecology in CKD rats. AKK also enhanced the intestinal mucosal barrier function. AKK may regulate the intestinal microecology and reduce renal interstitial fibrosis by enhancing the abundance of probiotics and reducing damage to the intestinal mucosal barrier. CONCLUSION The results suggest that AKK administration could be a novel therapeutic strategy for treating renal fibrosis and CKD.
Collapse
|
11
|
Pan RL, Martyniak K, Karimzadeh M, Gelikman DG, DeVries J, Sutter K, Coathup M, Razavi M, Sawh-Martinez R, Kean TJ. Systematic review on the application of 3D-bioprinting technology in orthoregeneration: current achievements and open challenges. J Exp Orthop 2022; 9:95. [PMID: 36121526 PMCID: PMC9485345 DOI: 10.1186/s40634-022-00518-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/08/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Joint degeneration and large or complex bone defects are a significant source of morbidity and diminished quality of life worldwide. There is an unmet need for a functional implant with near-native biomechanical properties. The potential for their generation using 3D bioprinting (3DBP)-based tissue engineering methods was assessed. We systematically reviewed the current state of 3DBP in orthoregeneration. METHODS This review was performed using PubMed and Web of Science. Primary research articles reporting 3DBP of cartilage, bone, vasculature, and their osteochondral and vascular bone composites were considered. Full text English articles were analyzed. RESULTS Over 1300 studies were retrieved, after removing duplicates, 1046 studies remained. After inclusion and exclusion criteria were applied, 114 articles were analyzed fully. Bioink material types and combinations were tallied. Cell types and testing methods were also analyzed. Nearly all papers determined the effect of 3DBP on cell survival. Bioink material physical characterization using gelation and rheology, and construct biomechanics were performed. In vitro testing methods assessed biochemistry, markers of extracellular matrix production and/or cell differentiation into respective lineages. In vivo proof-of-concept studies included full-thickness bone and joint defects as well as subcutaneous implantation in rodents followed by histological and µCT analyses to demonstrate implant growth and integration into surrounding native tissues. CONCLUSIONS Despite its relative infancy, 3DBP is making an impact in joint and bone engineering. Several groups have demonstrated preclinical efficacy of mechanically robust constructs which integrate into articular joint defects in small animals. However, notable obstacles remain. Notably, researchers encountered pitfalls in scaling up constructs and establishing implant function and viability in long term animal models. Further, to translate from the laboratory to the clinic, standardized quality control metrics such as construct stiffness and graft integration metrics should be established with investigator consensus. While there is much work to be done, 3DBP implants have great potential to treat degenerative joint diseases and provide benefit to patients globally.
Collapse
Affiliation(s)
- Rachel L Pan
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Kari Martyniak
- Biionix Cluster, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd, Orlando, FL, 32827, USA
| | - Makan Karimzadeh
- Biionix Cluster, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd, Orlando, FL, 32827, USA
| | - David G Gelikman
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Jonathan DeVries
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Kelly Sutter
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Melanie Coathup
- Biionix Cluster, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd, Orlando, FL, 32827, USA
| | - Mehdi Razavi
- Biionix Cluster, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd, Orlando, FL, 32827, USA
| | - Rajendra Sawh-Martinez
- College of Medicine, University of Central Florida, Orlando, FL, USA.,Plastic and Reconstructive Surgery, AdventHealth, Orlando, FL, USA
| | - Thomas J Kean
- Biionix Cluster, College of Medicine, University of Central Florida, 6900 Lake Nona Blvd, Orlando, FL, 32827, USA.
| |
Collapse
|
12
|
Lin Z, Zhang X, Fritch MR, Li Z, Kuang B, Alexander PG, Hao T, Cao G, Tan S, Bruce KK, Lin H. Engineering pre-vascularized bone-like tissue from human mesenchymal stem cells through simulating endochondral ossification. Biomaterials 2022; 283:121451. [DOI: 10.1016/j.biomaterials.2022.121451] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 01/28/2022] [Accepted: 02/27/2022] [Indexed: 01/12/2023]
|
13
|
Chen Y, Wang Y, Luo SC, Zheng X, Kankala RK, Wang SB, Chen AZ. Advances in Engineered Three-Dimensional (3D) Body Articulation Unit Models. Drug Des Devel Ther 2022; 16:213-235. [PMID: 35087267 PMCID: PMC8789231 DOI: 10.2147/dddt.s344036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 12/24/2021] [Indexed: 12/19/2022] Open
Abstract
Indeed, the body articulation units, commonly referred to as body joints, play significant roles in the musculoskeletal system, enabling body flexibility. Nevertheless, these articulation units suffer from several pathological conditions, such as osteoarthritis (OA), rheumatoid arthritis (RA), ankylosing spondylitis, gout, and psoriatic arthritis. There exist several treatment modalities based on the utilization of anti-inflammatory and analgesic drugs, which can reduce or control the pathophysiological symptoms. Despite the success, these treatment modalities suffer from major shortcomings of enormous cost and poor recovery, limiting their applicability and requiring promising strategies. To address these limitations, several engineering strategies have been emerged as promising solutions in fabricating the body articulation as unit models towards local articulation repair for tissue regeneration and high-throughput screening for drug development. In this article, we present challenges related to the selection of biomaterials (natural and synthetic sources), construction of 3D articulation models (scaffold-free, scaffold-based, and organ-on-a-chip), architectural designs (microfluidics, bioprinting, electrospinning, and biomineralization), and the type of culture conditions (growth factors and active peptides). Then, we emphasize the applicability of these articulation units for emerging biomedical applications of drug screening and tissue repair/regeneration. In conclusion, we put forward the challenges and difficulties for the further clinical application of the in vitro 3D articulation unit models in terms of the long-term high activity of the models.
Collapse
Affiliation(s)
- Ying Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, Fujian, People’s Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen, 361021, Fujian, People’s Republic of China
| | - Ying Wang
- Affiliated Dongguan Hospital, Southern Medical University, Dongguan, 523059, Guangdong, People’s Republic of China
- Guangdong Provincial Key Laboratory of Shock and Microcirculation, Guangzhou, 510080, Guangdong, People’s Republic of China
| | - Sheng-Chang Luo
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, Fujian, People’s Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen, 361021, Fujian, People’s Republic of China
| | - Xiang Zheng
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, Fujian, People’s Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen, 361021, Fujian, People’s Republic of China
| | - Ranjith Kumar Kankala
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, Fujian, People’s Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen, 361021, Fujian, People’s Republic of China
| | - Shi-Bin Wang
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, Fujian, People’s Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen, 361021, Fujian, People’s Republic of China
| | - Ai-Zheng Chen
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, Fujian, People’s Republic of China
- Fujian Provincial Key Laboratory of Biochemical Technology (Huaqiao University), Xiamen, 361021, Fujian, People’s Republic of China
| |
Collapse
|
14
|
Salar Amoli M, EzEldeen M, Jacobs R, Bloemen V. Materials for Dentoalveolar Bioprinting: Current State of the Art. Biomedicines 2021; 10:biomedicines10010071. [PMID: 35052751 PMCID: PMC8773444 DOI: 10.3390/biomedicines10010071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/25/2021] [Accepted: 12/27/2021] [Indexed: 12/19/2022] Open
Abstract
Although current treatments can successfully address a wide range of complications in the dentoalveolar region, they often still suffer from drawbacks and limitations, resulting in sub-optimal treatments for specific problems. In recent decades, significant progress has been made in the field of tissue engineering, aiming at restoring damaged tissues via a regenerative approach. Yet, the translation into a clinical product is still challenging. Novel technologies such as bioprinting have been developed to solve some of the shortcomings faced in traditional tissue engineering approaches. Using automated bioprinting techniques allows for precise placement of cells and biological molecules and for geometrical patient-specific design of produced biological scaffolds. Recently, bioprinting has also been introduced into the field of dentoalveolar tissue engineering. However, the choice of a suitable material to encapsulate cells in the development of so-called bioinks for bioprinting dentoalveolar tissues is still a challenge, considering the heterogeneity of these tissues and the range of properties they possess. This review, therefore, aims to provide an overview of the current state of the art by discussing the progress of the research on materials used for dentoalveolar bioprinting, highlighting the advantages and shortcomings of current approaches and considering opportunities for further research.
Collapse
Affiliation(s)
- Mehdi Salar Amoli
- Surface and Interface Engineered Materials (SIEM), Campus Group T, KU Leuven, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium;
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000 Leuven, Belgium; (M.E.); (R.J.)
| | - Mostafa EzEldeen
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000 Leuven, Belgium; (M.E.); (R.J.)
- Department of Oral Health Sciences, KU Leuven and Paediatric Dentistry and Special Dental Care, University Hospitals Leuven, Kapucijnenvoer 33, 3000 Leuven, Belgium
| | - Reinhilde Jacobs
- OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, KU Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Kapucijnenvoer 33, 3000 Leuven, Belgium; (M.E.); (R.J.)
- Department of Dental Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden
| | - Veerle Bloemen
- Surface and Interface Engineered Materials (SIEM), Campus Group T, KU Leuven, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium;
- Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Herestraat 49, 3000 Leuven, Belgium
- Correspondence: ; Tel.: +32-16-30-10-95
| |
Collapse
|
15
|
Koch F, Thaden O, Tröndle K, Zengerle R, Zimmermann S, Koltay P. Open-source hybrid 3D-bioprinter for simultaneous printing of thermoplastics and hydrogels. HARDWAREX 2021; 10:e00230. [PMID: 35607684 PMCID: PMC9123455 DOI: 10.1016/j.ohx.2021.e00230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 05/04/2023]
Abstract
3D-bioprinting is a promising technology applicable in areas such as regenerative medicine or in vitro organ model development. Various 3D-bioprinting technologies and systems have been developed and are partly commercially available. Here, we present the construction and characterization of an open-source low-cost 3D-bioprinter that allows the alternated microextrusion of hydrogel and fused deposition modeling (FDM) of thermoplastic filaments. The presented 3D-bioprinter is based on a conventional Prusa i3 MK3 printer and features two independent printheads: the original FDM-head and a syringe-based microextrusion printhead for soft materials. Modifications were designed modularly to fit various syringe formats or heating elements to the device. The bioprinter is the first hybrid DIY 3D-bioprinter that allows switching between materials as often as required during a print run to produce complex multi-material constructs with arbitrary patterns in each layer. For validation of the printer, two designs suitable for relevant bioprinting applications were realized. First, a porous plastic construct filled with hydrogel was printed, serving as a mechanically stable bone replacement tissue model. Second, a plastic chamber, which might be used in organ-on-a-chip applications, was printed with an extruded silicone sealing that enables the liquid-tight attachment of glass slides to the top and bottom of the chamber.
Collapse
Affiliation(s)
- Fritz Koch
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
| | - Ole Thaden
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
| | - Kevin Tröndle
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
| | - Roland Zengerle
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
- Hahn-Schickard, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
| | - Stefan Zimmermann
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
| | - Peter Koltay
- Laboratory for MEMS Applications, IMTEK – Department of Microsystems Engineering, University of Freiburg, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
- Hahn-Schickard, Georges-Koehler-Allee 103, D-79110 Freiburg, Germany
- Freiburg Center for Interactive Materials and Bioinspired Technologies (FIT), Georges-Koehler-Allee 105, D-79110 Freiburg, Germany
| |
Collapse
|
16
|
Vascularization Strategies in Bone Tissue Engineering. Cells 2021; 10:cells10071749. [PMID: 34359919 PMCID: PMC8306064 DOI: 10.3390/cells10071749] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 12/12/2022] Open
Abstract
Bone is a highly vascularized tissue, and its development, maturation, remodeling, and regeneration are dependent on a tight regulation of blood vessel supply. This condition also has to be taken into consideration in the context of the development of artificial tissue substitutes. In classic tissue engineering, bone-forming cells such as primary osteoblasts or mesenchymal stem cells are introduced into suitable scaffolds and implanted in order to treat critical-size bone defects. However, such tissue substitutes are initially avascular. Because of the occurrence of hypoxic conditions, especially in larger tissue substitutes, this leads to the death of the implanted cells. Therefore, it is necessary to devise vascularization strategies aiming at fast and efficient vascularization of implanted artificial tissues. In this review article, we present and discuss the current vascularization strategies in bone tissue engineering. These are based on the use of angiogenic growth factors, the co-implantation of blood vessel forming cells, the ex vivo microfabrication of blood vessels by means of bioprinting, and surgical methods for creating surgically transferable composite tissues.
Collapse
|
17
|
Chen EP, Toksoy Z, Davis BA, Geibel JP. 3D Bioprinting of Vascularized Tissues for in vitro and in vivo Applications. Front Bioeng Biotechnol 2021; 9:664188. [PMID: 34055761 PMCID: PMC8158943 DOI: 10.3389/fbioe.2021.664188] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/06/2021] [Indexed: 12/23/2022] Open
Abstract
With a limited supply of organ donors and available organs for transplantation, the aim of tissue engineering with three-dimensional (3D) bioprinting technology is to construct fully functional and viable tissue and organ replacements for various clinical applications. 3D bioprinting allows for the customization of complex tissue architecture with numerous combinations of materials and printing methods to build different tissue types, and eventually fully functional replacement organs. The main challenge of maintaining 3D printed tissue viability is the inclusion of complex vascular networks for nutrient transport and waste disposal. Rapid development and discoveries in recent years have taken huge strides toward perfecting the incorporation of vascular networks in 3D printed tissue and organs. In this review, we will discuss the latest advancements in fabricating vascularized tissue and organs including novel strategies and materials, and their applications. Our discussion will begin with the exploration of printing vasculature, progress through the current statuses of bioprinting tissue/organoids from bone to muscles to organs, and conclude with relevant applications for in vitro models and drug testing. We will also explore and discuss the current limitations of vascularized tissue engineering and some of the promising future directions this technology may bring.
Collapse
Affiliation(s)
- Earnest P Chen
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Yale College, Yale University, New Haven, CT, United States
| | - Zeren Toksoy
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Yale College, Yale University, New Haven, CT, United States
| | - Bruce A Davis
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Department of Cellular and Molecular Physiology, School of Medicine, Yale University, New Haven, CT, United States
| | - John P Geibel
- Department of Surgery, School of Medicine, Yale University, New Haven, CT, United States.,Department of Cellular and Molecular Physiology, School of Medicine, Yale University, New Haven, CT, United States
| |
Collapse
|
18
|
Kirillova A, Yeazel TR, Asheghali D, Petersen SR, Dort S, Gall K, Becker ML. Fabrication of Biomedical Scaffolds Using Biodegradable Polymers. Chem Rev 2021; 121:11238-11304. [PMID: 33856196 DOI: 10.1021/acs.chemrev.0c01200] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Degradable polymers are used widely in tissue engineering and regenerative medicine. Maturing capabilities in additive manufacturing coupled with advances in orthogonal chemical functionalization methodologies have enabled a rapid evolution of defect-specific form factors and strategies for designing and creating bioactive scaffolds. However, these defect-specific scaffolds, especially when utilizing degradable polymers as the base material, present processing challenges that are distinct and unique from other classes of materials. The goal of this review is to provide a guide for the fabrication of biodegradable polymer-based scaffolds that includes the complete pathway starting from selecting materials, choosing the correct fabrication method, and considering the requirements for tissue specific applications of the scaffold.
Collapse
Affiliation(s)
- Alina Kirillova
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Taylor R Yeazel
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Darya Asheghali
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Shannon R Petersen
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Sophia Dort
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Ken Gall
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Matthew L Becker
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States.,Department of Chemistry, Duke University, Durham, North Carolina 27708, United States.,Departments of Biomedical Engineering and Orthopaedic Surgery, Duke University, Durham, North Carolina 27708, United States
| |
Collapse
|