1
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Bartolf-Kopp M, Jungst T. The Past, Present, and Future of Tubular Melt Electrowritten Constructs to Mimic Small Diameter Blood Vessels - A Stable Process? Adv Healthc Mater 2024; 13:e2400426. [PMID: 38607966 DOI: 10.1002/adhm.202400426] [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: 02/03/2024] [Revised: 03/20/2024] [Indexed: 04/14/2024]
Abstract
Melt Electrowriting (MEW) is a continuously growing manufacturing platform. Its advantage is the consistent production of micro- to nanometer fibers, that stack intricately, forming complex geometrical shapes. MEW allows tuning of the mechanical properties of constructs via the geometry of deposited fibers. Due to this, MEW can create complex mechanics only seen in multi-material compounds and serve as guiding structures for cellular alignment. The advantage of MEW is also shown in combination with other biotechnological manufacturing methods to create multilayered constructs that increase mechanical approximation to native tissues, biocompatibility, and cellular response. These features make MEW constructs a perfect candidate for small-diameter vascular graft structures. Recently, studies have presented fascinating results in this regard, but is this truly the direction that tubular MEW will follow or are there also other options on the horizon? This perspective will explore the origins and developments of tubular MEW and present its growing importance in the field of artificial small-diameter vascular grafts with mechanical modulation and improved biomimicry and the impact of it in convergence with other manufacturing methods and how future technologies like AI may influence its progress.
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Affiliation(s)
- Michael Bartolf-Kopp
- Department for Functional Materials in Medicine and Dentistry, Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg, Germany
| | - Tomasz Jungst
- Department for Functional Materials in Medicine and Dentistry, Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Würzburg, Germany
- Department of Orthopedics, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, Netherlands
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2
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Saiz PG, Reizabal A, Vilas-Vilela JL, Dalton PD, Lanceros-Mendez S. Materials and Strategies to Enhance Melt Electrowriting Potential. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2312084. [PMID: 38447132 DOI: 10.1002/adma.202312084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 02/04/2024] [Indexed: 03/08/2024]
Abstract
Melt electrowriting (MEW) is an emerging additive manufacturing (AM) technology that enables the precise deposition of continuous polymeric microfibers, allowing for the creation of high-resolution constructs. In recent years, MEW has undergone a revolution, with the introduction of active properties or additional functionalities through novel polymer processing strategies, the incorporation of functional fillers, postprocessing, or the combination with other techniques. While extensively explored in biomedical applications, MEW's potential in other fields remains untapped. Thus, this review explores MEW's characteristics from a materials science perspective, emphasizing the diverse range of materials and composites processed by this technique and their current and potential applications. Additionally, the prospects offered by postprinting processing techniques are explored, together with the synergy achieved by combining melt electrowriting with other manufacturing methods. By highlighting the untapped potentials of MEW, this review aims to inspire research groups across various fields to leverage this technology for innovative endeavors.
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Affiliation(s)
- Paula G Saiz
- Macromolecular Chemistry Research Group (LABQUIMAC) Department of Physical Chemistry Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
- Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, 1505 Franklin Boulevard, Eugene, OR, 97403, USA
| | - Ander Reizabal
- Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, 1505 Franklin Boulevard, Eugene, OR, 97403, USA
- BCMaterials, Basque Center for Materials Applications, and Nanostructures, Bldg. Martina Casiano, UPV/EHU Science Park Barrio Sarriena s/n, Leioa, 48940, Spain
| | - Jose Luis Vilas-Vilela
- Macromolecular Chemistry Research Group (LABQUIMAC) Department of Physical Chemistry Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
- BCMaterials, Basque Center for Materials Applications, and Nanostructures, Bldg. Martina Casiano, UPV/EHU Science Park Barrio Sarriena s/n, Leioa, 48940, Spain
| | - Paul D Dalton
- Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, 1505 Franklin Boulevard, Eugene, OR, 97403, USA
| | - Senentxu Lanceros-Mendez
- BCMaterials, Basque Center for Materials Applications, and Nanostructures, Bldg. Martina Casiano, UPV/EHU Science Park Barrio Sarriena s/n, Leioa, 48940, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, Bilbao, 48009, Spain
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3
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Baroth T, Loewner S, Heymann H, Cholewa F, Blume H, Blume C. An Intelligent and Efficient Workflow for Path-Oriented 3D Bioprinting of Tubular Scaffolds. 3D PRINTING AND ADDITIVE MANUFACTURING 2024; 11:323-332. [PMID: 38389675 PMCID: PMC10880655 DOI: 10.1089/3dp.2022.0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Modern 3D printing is a valuable tool for tissue engineering (TE), and the fabrication of complex geometries such as tubular scaffolds with adaptable structure, for example, as replacements for intestines, bronchi, esophagus, or vessels, could contribute to standardized procedures in the future of regenerative medicine. However, high-precision bioprinting of scaffolds for tubular TE applications remain a major challenge and is an arduous endeavor with currently available three-axis bioprinters, which are limited to planar, layer-by-layer printing processes. In this work, a novel, straightforward workflow for creating toolpaths and command sets for tubular scaffolds is presented. By combining a custom software application with commercial 3D design software, a comparatively large degree of design freedom was achieved while ensuring ease of use and extensibility for future research needs. As a hardware platform, two commercial 3D bioprinters were retrofitted with a rotary axis to accommodate cylindrical mandrels as print beds, overcoming the limitations of planar print beds. The printing process using the new method was evaluated in terms of the mechanical, actuation, and synchronization characteristics of the linear and rotating axes, as well as the stability of the printing process. In this context, it became clear that extrusion-based printing processes are very sensitive to positioning errors when used with small nozzles. Despite these technical difficulties, the new process can produce single-layer, multilayer, and multimaterial structures with a wide range of pore geometries. In addition, extrusion-based printing processes can be combined with melt electrowriting to produce durable scaffolds with features in the micrometer to millimeter range. Overall, the suitability of this setup for a wide range of TE applications has thus been demonstrated.
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Affiliation(s)
- Timo Baroth
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Sebastian Loewner
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
| | - Henrik Heymann
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Fabian Cholewa
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Holger Blume
- Institute of Microelectronic Systems, Leibniz University Hannover, Hannover, Germany
| | - Cornelia Blume
- Institute of Technical Chemistry, Leibniz University Hannover, Hannover, Germany
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4
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Thorsnes QS, Turner PR, Ali MA, Cabral JD. Integrating Fused Deposition Modeling and Melt Electrowriting for Engineering Branched Vasculature. Biomedicines 2023; 11:3139. [PMID: 38137359 PMCID: PMC10740633 DOI: 10.3390/biomedicines11123139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/09/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
We demonstrate for the first time the combination of two additive manufacturing technologies used in tandem, fused deposition modelling (FDM) and melt electrowriting (MEW), to increase the range of possible MEW structures, with a focus on creating branched, hollow scaffolds for vascularization. First, computer-aided design (CAD) was used to design branched mold halves which were then used to FDM print conductive polylactic acid (cPLA) molds. Next, MEW was performed over the top of these FDM cPLA molds using polycaprolactone (PCL), an FDA-approved biomaterial. After the removal of the newly constructed MEW scaffolds from the FDM molds, complementary MEW scaffold halves were heat-melded together by placing the flat surfaces of each half onto a temperature-controlled platform, then pressing the heated halves together, and finally allowing them to cool to create branched, hollow constructs. This hybrid technique permitted the direct fabrication of hollow MEW structures that would otherwise not be possible to achieve using MEW alone. The scaffolds then underwent in vitro physical and biological testing. Specifically, dynamic mechanical analysis showed the scaffolds had an anisotropic stiffness of 1 MPa or 5 MPa, depending on the direction of the applied stress. After a month of incubation, normal human dermal fibroblasts (NHDFs) were seen growing on the scaffolds, which demonstrated that no deleterious effects were exerted by the MEW scaffolds constructed using FDM cPLA molds. The significant potential of our hybrid additive manufacturing approach to fabricate complex MEW scaffolds could be applied to a variety of tissue engineering applications, particularly in the field of vascularization.
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Affiliation(s)
- Quinn S. Thorsnes
- Department of Oral Rehabilitation, School of Dentistry, University of Otago, Dunedin 9054, New Zealand; (Q.S.T.); (M.A.A.)
| | - Paul R. Turner
- Department of Microbiology & Immunology, University of Otago, Dunedin 9054, New Zealand;
| | - Mohammed Azam Ali
- Department of Oral Rehabilitation, School of Dentistry, University of Otago, Dunedin 9054, New Zealand; (Q.S.T.); (M.A.A.)
| | - Jaydee D. Cabral
- Department of Microbiology & Immunology, University of Otago, Dunedin 9054, New Zealand;
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5
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Fernández-Pérez J, van Kampen KA, Mota C, Baker M, Moroni L. Flexible, Suturable, and Leak-free Scaffolds for Vascular Tissue Engineering Using Melt Spinning. ACS Biomater Sci Eng 2023; 9:5006-5014. [PMID: 37490420 PMCID: PMC10428091 DOI: 10.1021/acsbiomaterials.3c00535] [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: 04/21/2023] [Accepted: 07/06/2023] [Indexed: 07/27/2023]
Abstract
Coronary artery disease affects millions worldwide. Bypass surgery remains the gold standard; however, autologous tissue is not always available. Hence, the need for an off-the-shelf graft to treat these patients remains extremely high. Using melt spinning, we describe here the fabrication of tubular scaffolds composed of microfibers aligned in the circumferential orientation mimicking the organized extracellular matrix in the tunica media of arteries. By variation of the translational extruder speed, the angle between fibers ranged from 0 to ∼30°. Scaffolds with the highest angle showed the best performance in a three-point bending test. These constructs could be bent up to 160% strain without kinking or breakage. Furthermore, when liquid was passed through the scaffolds, no leakage was observed. Suturing of native arteries was successful. Mesenchymal stromal cells were seeded on the scaffolds and differentiated into vascular smooth muscle-like cells (vSMCs) by reduction of serum and addition of transforming growth factor beta 1 and ascorbic acid. The scaffolds with a higher angle between fibers showed increased expression of vSMC markers alpha smooth muscle actin, calponin, and smooth muscle protein 22-alpha, whereas a decrease in collagen 1 expression was observed, indicating a positive contractile phenotype. Endothelial cells were seeded on the repopulated scaffolds and formed a tightly packed monolayer on the luminal side. Our study shows a one-step fabrication for ECM-mimicking scaffolds with good handleability, leak-free property, and suturability; the excellent biocompatibility allowed the growth of a bilayered construct. Future work will explore the possibility of using these scaffolds as vascular conduits in in vivo settings.
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Affiliation(s)
- Julia Fernández-Pérez
- Department of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
| | - Kenny A. van Kampen
- Department of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
| | - Carlos Mota
- Department of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
| | - Matthew Baker
- Department of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue
Regeneration, MERLN Institute for Technology-Inspired Regenerative
Medicine, Maastricht University, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
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6
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Größbacher G, Bartolf-Kopp M, Gergely C, Bernal PN, Florczak S, de Ruijter M, Rodriguez NG, Groll J, Malda J, Jungst T, Levato R. Volumetric Printing Across Melt Electrowritten Scaffolds Fabricates Multi-Material Living Constructs with Tunable Architecture and Mechanics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2300756. [PMID: 37099802 DOI: 10.1002/adma.202300756] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 04/17/2023] [Indexed: 06/19/2023]
Abstract
Major challenges in biofabrication revolve around capturing the complex, hierarchical composition of native tissues. However, individual 3D printing techniques have limited capacity to produce composite biomaterials with multi-scale resolution. Volumetric bioprinting recently emerged as a paradigm-shift in biofabrication. This ultrafast, light-based technique sculpts cell-laden hydrogel bioresins into 3D structures in a layerless fashion, providing enhanced design freedom over conventional bioprinting. However, it yields prints with low mechanical stability, since soft, cell-friendly hydrogels are used. Herein, the possibility to converge volumetric bioprinting with melt electrowriting, which excels at patterning microfibers, is shown for the fabrication of tubular hydrogel-based composites with enhanced mechanical behavior. Despite including non-transparent melt electrowritten scaffolds in the volumetric printing process, high-resolution bioprinted structures are successfully achieved. Tensile, burst, and bending mechanical properties of printed tubes are tuned altering the electrowritten mesh design, resulting in complex, multi-material tubular constructs with customizable, anisotropic geometries that better mimic intricate biological tubular structures. As a proof-of-concept, engineered tubular structures are obtained by building trilayered cell-laden vessels, and features (valves, branches, fenestrations) that can be rapidly printed using this hybrid approach. This multi-technology convergence offers a new toolbox for manufacturing hierarchical and mechanically tunable multi-material living structures.
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Affiliation(s)
- Gabriel Größbacher
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Michael Bartolf-Kopp
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Csaba Gergely
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Paulina Núñez Bernal
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Sammy Florczak
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Mylène de Ruijter
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Núria Ginés Rodriguez
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Jos Malda
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, The Netherlands
| | - Tomasz Jungst
- Department of Functional Materials in Medicine and Dentistry, Institute of Functional Materials and Biofabrication (IFB), KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Riccardo Levato
- Department of Orthopaedics, University Medical Center Utrecht, Utrecht University, Utrecht, 3584 CX, The Netherlands
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, 3584 CT, The Netherlands
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7
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Bini F, D'Alessandro S, Pica A, Marinozzi F, Cidonio G. Harnessing Biofabrication Strategies to Re-Surface Osteochondral Defects: Repair, Enhance, and Regenerate. Biomimetics (Basel) 2023; 8:260. [PMID: 37366855 DOI: 10.3390/biomimetics8020260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023] Open
Abstract
Osteochondral tissue (OC) is a complex and multiphasic system comprising cartilage and subchondral bone. The discrete OC architecture is layered with specific zones characterized by different compositions, morphology, collagen orientation, and chondrocyte phenotypes. To date, the treatment of osteochondral defects (OCD) remains a major clinical challenge due to the low self-regenerative capacity of damaged skeletal tissue, as well as the critical lack of functional tissue substitutes. Current clinical approaches fail to fully regenerate damaged OC recapitulating the zonal structure while granting long-term stability. Thus, the development of new biomimetic treatment strategies for the functional repair of OCDs is urgently needed. Here, we review recent developments in the preclinical investigation of novel functional approaches for the resurfacing of skeletal defects. The most recent studies on preclinical augmentation of OCDs and highlights on novel studies for the in vivo replacement of diseased cartilage are presented.
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Affiliation(s)
- Fabiano Bini
- Department of Mechanical and Aerospace Engineering, Sapienza University, 00148 Rome, Italy
| | - Salvatore D'Alessandro
- Department of Mechanical and Aerospace Engineering, Sapienza University, 00148 Rome, Italy
- Center for Life Nano- & Neuro-Science (CLN2S), Fondazione Istituto Italiano di Tecnologia, 00161 Rome, Italy
| | - Andrada Pica
- Department of Mechanical and Aerospace Engineering, Sapienza University, 00148 Rome, Italy
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Franco Marinozzi
- Department of Mechanical and Aerospace Engineering, Sapienza University, 00148 Rome, Italy
| | - Gianluca Cidonio
- Center for Life Nano- & Neuro-Science (CLN2S), Fondazione Istituto Italiano di Tecnologia, 00161 Rome, Italy
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8
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Daghrery A, de Souza Araújo IJ, Castilho M, Malda J, Bottino MC. Unveiling the potential of melt electrowriting in regenerative dental medicine. Acta Biomater 2023; 156:88-109. [PMID: 35026478 PMCID: PMC11046422 DOI: 10.1016/j.actbio.2022.01.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 12/08/2021] [Accepted: 01/05/2022] [Indexed: 01/18/2023]
Abstract
For nearly three decades, tissue engineering strategies have been leveraged to devise effective therapeutics for dental, oral, and craniofacial (DOC) regenerative medicine and treat permanent deformities caused by many debilitating health conditions. In this regard, additive manufacturing (AM) allows the fabrication of personalized scaffolds that have the potential to recapitulate native tissue morphology and biomechanics through the utilization of several 3D printing techniques. Among these, melt electrowriting (MEW) is a versatile direct electrowriting process that permits the development of well-organized fibrous constructs with fiber resolutions ranging from micron to nanoscale. Indeed, MEW offers great prospects for the fabrication of scaffolds mimicking tissue specificity, healthy and pathophysiological microenvironments, personalized multi-scale transitions, and functional interfaces for tissue regeneration in medicine and dentistry. Excitingly, recent work has demonstrated the potential of converging MEW with other AM technologies and/or cell-laden scaffold fabrication (bioprinting) as a favorable route to overcome some of the limitations of MEW for DOC tissue regeneration. In particular, such convergency fabrication strategy has opened great promise in terms of supporting multi-tissue compartmentalization and predetermined cell commitment. In this review, we offer a critical appraisal on the latest advances in MEW and its convergence with other biofabrication technologies for DOC tissue regeneration. We first present the engineering principles of MEW and the most relevant design aspects for transition from flat to more anatomically relevant 3D structures while printing highly-ordered constructs. Secondly, we provide a thorough assessment of contemporary achievements using MEW scaffolds to study and guide soft and hard tissue regeneration, and draw a parallel on how to extrapolate proven concepts for applications in DOC tissue regeneration. Finally, we offer a combined engineering/clinical perspective on the fabrication of hierarchically organized MEW scaffold architectures and the future translational potential of site-specific, single-step scaffold fabrication to address tissue and tissue interfaces in dental, oral, and craniofacial regenerative medicine. STATEMENT OF SIGNIFICANCE: Melt electrowriting (MEW) techniques can further replicate the complexity of native tissues and could be the foundation for novel personalized (defect-specific) and tissue-specific clinical approaches in regenerative dental medicine. This work presents a unique perspective on how MEW has been translated towards the application of highly-ordered personalized multi-scale and functional interfaces for tissue regeneration, targeting the transition from flat to anatomically-relevant three-dimensional structures. Furthermore, we address the value of convergence of biofabrication technologies to overcome the traditional manufacturing limitations provided by multi-tissue complexity. Taken together, this work offers abundant engineering and clinical perspectives on the fabrication of hierarchically MEW architectures aiming towards site-specific implants to address complex tissue damage in regenerative dental medicine.
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Affiliation(s)
- Arwa Daghrery
- Department of Cardiology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States; Department of Restorative Dental Sciences, School of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Isaac J de Souza Araújo
- Department of Cardiology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States
| | - Miguel Castilho
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands
| | - Jos Malda
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.
| | - Marco C Bottino
- Department of Cardiology, Restorative Sciences, and Endodontics, University of Michigan, School of Dentistry, Ann Arbor, Michigan, United States; Department of Biomedical Engineering, College of Engineering, University of Michigan, Ann Arbor, Michigan, United States.
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9
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Taneja H, Salodkar SM, Singh Parmar A, Chaudhary S. Hydrogel based 3D printing: Bio ink for tissue engineering. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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10
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Hai AM, Yue Z, Beirne S, Wallace G. Electrowriting of silk fibroin: Towards
3D
fabrication for tissue engineering applications. J Appl Polym Sci 2022. [DOI: 10.1002/app.53349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Abdul Moqeet Hai
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM, Innovation Campus University of Wollongong Wollongong New South Wales Australia
- Institute of Polymer and Textile Engineering University of the Punjab Lahore Pakistan
| | - Zhilian Yue
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM, Innovation Campus University of Wollongong Wollongong New South Wales Australia
| | - Stephen Beirne
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM, Innovation Campus University of Wollongong Wollongong New South Wales Australia
| | - Gordon Wallace
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, AIIM, Innovation Campus University of Wollongong Wollongong New South Wales Australia
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11
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Li X, Peng Y, Deng Y, Ye F, Zhang C, Hu X, Liu Y, Zhang D. Recycling and Reutilizing Polymer Waste via Electrospun Micro/Nanofibers: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1663. [PMID: 35630885 PMCID: PMC9146546 DOI: 10.3390/nano12101663] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Revised: 04/30/2022] [Accepted: 05/07/2022] [Indexed: 02/06/2023]
Abstract
The accumulation of plastic waste resulting from the increasing demand for non-degradable plastics has led to a global environmental crisis. The severe environmental and economic drawbacks of inefficient, expensive, and impractical traditional waste disposal methods, such as landfills, incineration, plastic recycling, and energy production, limit the expansion of their applications to solving the plastic waste problem. Finding novel ways to manage the large amount of disposed plastic waste is urgent. Until now, one of the most valuable strategies for the handling of plastic waste has been to reutilize the waste as raw material for the preparation of functional and high-value products. Electrospun micro/nanofibers have drawn much attention in recent years due to their advantages of small diameter, large specific area, and excellent physicochemical features. Thus, electrospinning recycled plastic waste into micro/nanofibers creates diverse opportunities to deal with the environmental issue caused by the growing accumulation of plastic waste. This paper presents a review of recycling and reutilizing polymer waste via electrospinning. Firstly, the advantages of the electrospinning approach to recycling plastic waste are summarized. Then, the studies of electrospun recycled plastic waste are concluded. Finally, the challenges and future perspectives of electrospun recycled plastic waste are provided. In conclusion, this paper aims to provide a comprehensive overview of electrospun recycled plastic waste for researchers to develop further studies.
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Affiliation(s)
- Xiuhong Li
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
| | - Yujie Peng
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
| | - Yichen Deng
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
| | - Fangping Ye
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
| | - Chupeng Zhang
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
| | - Xinyu Hu
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
| | - Yong Liu
- Beijing Key Laboratory of Advanced Functional Polymer Composites, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Daode Zhang
- School of Mechanical Engineering, Hubei University of Technology, Wuhan 430068, China; (X.L.); (Y.P.); (Y.D.); (F.Y.); (D.Z.)
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12
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Lahr CA, Landgraf M, Wagner F, Cipitria A, Moreno-Jiménez I, Bas O, Schmutz B, Meinert C, Cavalcanti ADS, Mashimo T, Miyasaka Y, Holzapfel BM, Shafiee A, McGovern JA, Hutmacher DW. A humanised rat model of osteosarcoma reveals ultrastructural differences between bone and mineralised tumour tissue. Bone 2022; 158:116018. [PMID: 34023543 DOI: 10.1016/j.bone.2021.116018] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/06/2021] [Accepted: 05/17/2021] [Indexed: 02/06/2023]
Abstract
Current xenograft animal models fail to accurately replicate the complexity of human bone disease. To gain translatable and clinically valuable data from animal models, new in vivo models need to be developed that mimic pivotal aspects of human bone physiology as well as its diseased state. Above all, an advanced bone disease model should promote the development of new treatment strategies and facilitate the conduction of common clinical interventional procedures. Here we describe the development and characterisation of an orthotopic humanised tissue-engineered osteosarcoma (OS) model in a recently genetically engineered x-linked severe combined immunodeficient (X-SCID) rat. For the first time in a genetically modified rat, our results show the successful implementation of an orthotopic humanised tissue-engineered bone niche supporting the growth of a human OS cell line including its metastatic spread to the lung. Moreover, we studied the inter- and intraspecies differences in ultrastructural composition of bone and calcified tissue produced by the tumour, pointing to the crucial role of humanised animal models.
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Affiliation(s)
- Christoph A Lahr
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; Musculoskeletal University Centre Munich, Department of Orthopedics and Trauma Surgery, University Hospital Munich, LMU, Marchioninistraße 15, 81377 Munich, Germany
| | - Marietta Landgraf
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia
| | - Ferdinand Wagner
- Musculoskeletal University Centre Munich, Department of Orthopedics and Trauma Surgery, University Hospital Munich, LMU, Marchioninistraße 15, 81377 Munich, Germany; Department of Pediatric Surgery, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, Lindwurmstrasse 4, 80337 Munich, Germany
| | - Amaia Cipitria
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1 OT Golm, 14476 Potsdam, Germany
| | - Inés Moreno-Jiménez
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1 OT Golm, 14476 Potsdam, Germany
| | - Onur Bas
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; ARC Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia
| | - Beat Schmutz
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; Jamieson Trauma Institute, Royal Brisbane and Women's Hospital, Metro North Hospital and Health Service, Herston, QLD 4029, Australia
| | - Christoph Meinert
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; School of Mechanical, Medical and Process Engineering, 2 George Street, Brisbane, QLD 4001, Australia
| | - Amanda Dos Santos Cavalcanti
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia
| | - Tomoji Mashimo
- Division of Animal Genetics, Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Yoshiki Miyasaka
- Laboratory of Reproductive Engineering, Institute of Experimental Animal Sciences, Osaka University Medical School, Osaka, Japan
| | - Boris M Holzapfel
- Musculoskeletal University Centre Munich, Department of Orthopedics and Trauma Surgery, University Hospital Munich, LMU, Marchioninistraße 15, 81377 Munich, Germany
| | - Abbas Shafiee
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane, QLD 4029, Australia.
| | - Jacqui A McGovern
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; School of Mechanical, Medical and Process Engineering, 2 George Street, Brisbane, QLD 4001, Australia.
| | - Dietmar W Hutmacher
- Centre in Transformative Biomimetics in Bioengineering, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, Brisbane, QLD 4059, Australia; ARC Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia; School of Mechanical, Medical and Process Engineering, 2 George Street, Brisbane, QLD 4001, Australia.
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13
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Vahabli E, Mann J, Heidari BS, Lawrence‐Brown M, Norman P, Jansen S, Pardo EDJ, Doyle B. The Technological Advancement to Engineer Next-Generation Stent-Grafts: Design, Material, and Fabrication Techniques. Adv Healthc Mater 2022; 11:e2200271. [PMID: 35481675 DOI: 10.1002/adhm.202200271] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/04/2022] [Indexed: 12/12/2022]
Abstract
Endovascular treatment of aortic disorders has gained wide acceptance due to reduced physiological burden to the patient compared to open surgery, and ongoing stent-graft evolution has made aortic repair an option for patients with more complex anatomies. To date, commercial stent-grafts are typically developed from established production techniques with simple design structures and limited material ranges. Despite the numerous updated versions of stent-grafts by manufacturers, the reoccurrence of device-related complications raises questions about whether the current manfacturing methods are technically able to eliminate these problems. The technology trend to produce efficient medical devices, including stent-grafts and all similar implants, should eventually change direction to advanced manufacturing techniques. It is expected that through recent advancements, especially the emergence of 4D-printing and smart materials, unprecedented features can be defined for cardiovascular medical implants, like shape change and remote battery-free self-monitoring. 4D-printing technology promises adaptive functionality, a highly desirable feature enabling printed cardiovascular implants to physically transform with time to perform a programmed task. This review provides a thorough assessment of the established technologies for existing stent-grafts and provides technical commentaries on known failure modes. They then discuss the future of advanced technologies and the efforts needed to produce next-generation endovascular implants.
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Affiliation(s)
- Ebrahim Vahabli
- Vascular Engineering Laboratory Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands and the UWA Centre for Medical Research The University of Western Australia Perth 6009 Australia
- School of Engineering The University of Western Australia Perth 6009 Australia
| | - James Mann
- Vascular Engineering Laboratory Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands and the UWA Centre for Medical Research The University of Western Australia Perth 6009 Australia
- School of Engineering The University of Western Australia Perth 6009 Australia
| | - Behzad Shiroud Heidari
- Vascular Engineering Laboratory Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands and the UWA Centre for Medical Research The University of Western Australia Perth 6009 Australia
- School of Engineering The University of Western Australia Perth 6009 Australia
- Australian Research Council Centre for Personalised Therapeutics Technologies University of Western Australia Perth 6009 Australia
| | | | - Paul Norman
- Vascular Engineering Laboratory Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands and the UWA Centre for Medical Research The University of Western Australia Perth 6009 Australia
- Medical School The University of Western Australia Perth 6009 Australia
| | - Shirley Jansen
- Curtin Medical School Curtin University Perth WA 6102 Australia
- Department of Vascular and Endovascular Surgery Sir Charles Gairdner Hospital Perth WA 6009 Australia
- Heart and Vascular Research Institute Harry Perkins Medical Research Institute Perth WA 6009 Australia
| | - Elena de Juan Pardo
- School of Engineering The University of Western Australia Perth 6009 Australia
- School of Mechanical Medical and Process Engineering Queensland University of Technology Brisbane Queensland 4059 Australia
- T3mPLATE Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands and the UWA Centre for Medical Research The University of Western Australia Perth WA 6009 Australia
| | - Barry Doyle
- Vascular Engineering Laboratory Harry Perkins Institute of Medical Research QEII Medical Centre Nedlands and the UWA Centre for Medical Research The University of Western Australia Perth 6009 Australia
- School of Engineering The University of Western Australia Perth 6009 Australia
- Australian Research Council Centre for Personalised Therapeutics Technologies University of Western Australia Perth 6009 Australia
- British Heart Foundation Centre for Cardiovascular Science The University of Edinburgh Edinburgh EH16 4TJ UK
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14
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Zhi D, Cheng Q, Midgley AC, Zhang Q, Wei T, Li Y, Wang T, Ma T, Rafique M, Xia S, Cao Y, Li Y, Li J, Che Y, Zhu M, Wang K, Kong D. Mechanically reinforced biotubes for arterial replacement and arteriovenous grafting inspired by architectural engineering. SCIENCE ADVANCES 2022; 8:eabl3888. [PMID: 35294246 PMCID: PMC8926343 DOI: 10.1126/sciadv.abl3888] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
There is a lack in clinically-suitable vascular grafts. Biotubes, prepared using in vivo tissue engineering, show potential for vascular regeneration. However, their mechanical strength is typically poor. Inspired by architectural design of steel fiber reinforcement of concrete for tunnel construction, poly(ε-caprolactone) (PCL) fiber skeletons (PSs) were fabricated by melt-spinning and heat treatment. The PSs were subcutaneously embedded to induce the assembly of host cells and extracellular matrix to obtain PS-reinforced biotubes (PBs). Heat-treated medium-fiber-angle PB (hMPB) demonstrated superior performance when evaluated by in vitro mechanical testing and following implantation in rat abdominal artery replacement models. hMPBs were further evaluated in canine peripheral arterial replacement and sheep arteriovenous graft models. Overall, hMPB demonstrated appropriate mechanics, puncture resistance, rapid hemostasis, vascular regeneration, and long-term patency, without incidence of luminal expansion or intimal hyperplasia. These optimized hMPB properties show promise as an alternatives to autologous vessels in clinical applications.
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Affiliation(s)
- Dengke Zhi
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Quhan Cheng
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Adam C. Midgley
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Qiuying Zhang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Tingting Wei
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Yi Li
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Ting Wang
- Urban Transport Emission Control Research Centre, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China
| | - Tengzhi Ma
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Muhammad Rafique
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
| | - Shuang Xia
- Department of Radiology, Tianjin Key Disciplines of Radiology, Tianjin First Central Hospital, Nankai University, Tianjin 300192, China
| | - Yuejuan Cao
- Department of Vascular Surgery, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Yangchun Li
- Department of Vascular Surgery, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Jing Li
- Department of Ultrasound, Tianjin Union Medical Center, Nankai University, Tianjin 300121, China
| | - Yongzhe Che
- Department of Pathology and Anatomy, School of Medicine, Nankai University, Tianjin 300071, China
| | - Meifeng Zhu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Corresponding author. (D.K.); (K.W.); (M.Z.)
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Corresponding author. (D.K.); (K.W.); (M.Z.)
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, China
- Institute of Transplant Medicine, Tianjin First Central Hospital, Nankai University, Tianjin 300192, China
- Corresponding author. (D.K.); (K.W.); (M.Z.)
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15
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Vaquette C, Mitchell J, Ivanovski S. Recent Advances in Vertical Alveolar Bone Augmentation Using Additive Manufacturing Technologies. Front Bioeng Biotechnol 2022; 9:798393. [PMID: 35198550 PMCID: PMC8858982 DOI: 10.3389/fbioe.2021.798393] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/13/2021] [Indexed: 11/26/2022] Open
Abstract
Vertical bone augmentation is aimed at regenerating bone extraskeletally (outside the skeletal envelope) in order to increase bone height. It is generally required in the case of moderate to severe atrophy of bone in the oral cavity due to tooth loss, trauma, or surgical resection. Currently utilized surgical techniques, such as autologous bone blocks, distraction osteogenesis, and Guided Bone Regeneration (GBR), have various limitations, including morbidity, compromised dimensional stability due to suboptimal resorption rates, poor structural integrity, challenging handling properties, and/or high failure rates. Additive manufacturing (3D printing) facilitates the creation of highly porous, interconnected 3-dimensional scaffolds that promote vascularization and subsequent osteogenesis, while providing excellent handling and space maintaining properties. This review describes and critically assesses the recent progress in additive manufacturing technologies for scaffold, membrane or mesh fabrication directed at vertical bone augmentation and Guided Bone Regeneration and their in vivo application.
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16
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Reyna-Urrutia VA, González-González AM, Rosales-Ibáñez R. Compositions and Structural Geometries of Scaffolds Used in the Regeneration of Cleft Palates: A Review of the Literature. Polymers (Basel) 2022; 14:polym14030547. [PMID: 35160534 PMCID: PMC8840587 DOI: 10.3390/polym14030547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 01/21/2022] [Accepted: 01/25/2022] [Indexed: 02/04/2023] Open
Abstract
Cleft palate (CP) is one of the most common birth defects, presenting a multitude of negative impacts on the health of the patient. It also leads to increased mortality at all stages of life, economic costs and psychosocial effects. The embryological development of CP has been outlined thanks to the advances made in recent years due to biomolecular successions. The etiology is broad and combines certain environmental and genetic factors. Currently, all surgical interventions work off the principle of restoring the area of the fissure and aesthetics of the patient, making use of bone substitutes. These can involve biological products, such as a demineralized bone matrix, as well as natural–synthetic polymers, and can be supplemented with nutrients or growth factors. For this reason, the following review analyzes different biomaterials in which nutrients or biomolecules have been added to improve the bioactive properties of the tissue construct to regenerate new bone, taking into account the greatest limitations of this approach, which are its use for bone substitutes for large areas exclusively and the lack of vascularity. Bone tissue engineering is a promising field, since it favors the development of porous synthetic substitutes with the ability to promote rapid and extensive vascularization within their structures for the regeneration of the CP area.
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17
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Ravichandran A, Meinert C, Bas O, Hutmacher DW, Bock N. Engineering a 3D bone marrow adipose composite tissue loading model suitable for studying mechanobiological questions. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 128:112313. [PMID: 34474864 DOI: 10.1016/j.msec.2021.112313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 10/20/2022]
Abstract
Tissue engineering strategies are widely used to model and study the bone marrow microenvironment in healthy and pathological conditions. Yet, while bone function highly depends on mechanical stimulation, the effects of biomechanical stimuli on the bone marrow niche, specifically on bone marrow adipose tissue (BMAT) is poorly understood due to a lack of representative in vitro loading models. Here, we engineered a BMAT analog made of a GelMA (gelatin methacryloyl) hydrogel/medical-grade polycaprolactone (mPCL) scaffold composite to structurally and biologically mimic key aspects of the bone marrow microenvironment, and exploited an innovative bioreactor to study the effects of mechanical loading. Highly reproducible BMAT analogs facilitated the successful adipogenesis of human mesenchymal bone marrow stem cells. Upon long-term intermittent stimulation (1 Hz, 2 h/day, 3 days/week, 3 weeks) in the novel bioreactor, cellular proliferation and lipid accumulation were similar to unloaded controls, yet there was a significant reduction in the secretion of adipokines including leptin and adiponectin, in line with clinical evidence of reduced adipokine expression following exercise/activity. Ultimately, this innovative loading platform combined with reproducibly engineered BMAT analogs provide opportunities to study marrow physiology in greater complexity as it accounts for the dynamic mechanical microenvironment context.
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Affiliation(s)
- Akhilandeshwari Ravichandran
- Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove 4059, QLD, Australia; Translational Research Institute (TRI), QUT, Woolloongabba 4102, QLD, Australia
| | - Christoph Meinert
- Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove 4059, QLD, Australia; Metro North Hospital and Health Service, Herston 4029, QLD, Australia
| | - Onur Bas
- Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove 4059, QLD, Australia; Australian Research Council (ARC) Training Centre in Additive Biomanufacturing, QUT, Kelvin Grove 4059, QLD, Australia
| | - Dietmar W Hutmacher
- Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove 4059, QLD, Australia; Translational Research Institute (TRI), QUT, Woolloongabba 4102, QLD, Australia; Bone and Joint Disorders Program, School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane 4000, QLD, Australia; School of Biomedical Sciences, Faculty of Health and Australian Prostate Cancer Research Centre (APCRC-Q), Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane 4000, QLD, Australia
| | - Nathalie Bock
- Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove 4059, QLD, Australia; Translational Research Institute (TRI), QUT, Woolloongabba 4102, QLD, Australia; School of Biomedical Sciences, Faculty of Health and Australian Prostate Cancer Research Centre (APCRC-Q), Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane 4000, QLD, Australia; ARC Industrial Transformation Training Centre for Multiscale 3D Imaging, Modelling and Manufacturing, QUT, Kelvin Grove 4059, QLD, Australia.
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18
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Mieszczanek P, Robinson TM, Dalton PD, Hutmacher DW. Convergence of Machine Vision and Melt Electrowriting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100519. [PMID: 34101929 DOI: 10.1002/adma.202100519] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/16/2021] [Indexed: 06/12/2023]
Abstract
Melt electrowriting (MEW) is a high-resolution additive manufacturing technology that balances multiple parametric variables to arrive at a stable fabrication process. The better understanding of this balance is underscored here using high-resolution camera vision of jet stability profiles in different electrical fields. Complementing this visual information are fiber-diameter measurements obtained at precise points, allowing the correlation to electrified jet properties. Two process signatures-the jet angle and for the first time, the Taylor cone area-are monitored and analyzed with a machine vision system, while SEM imaging for diameter measurement correlates real-time information. This information, in turn, allows the detection and correction of fiber pulsing for accurate jet placement on the collector, and the in-process assessment of the fiber diameter. Improved process control is used to successfully fabricate collapsible MEW tubes; structures that require exceptional accuracy and printing stability. Using a precise winding angle of 60° and 300 layers, the resulting 12 mm-thick tubular structures have elastic snap-through instabilities associated with mechanical metamaterials. This study provides a detailed analysis of the fiber pulsing occurrence in MEW and highlights the importance of real-time monitoring of the Taylor cone volume to better understand, control, and predict printing instabilities.
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Affiliation(s)
- Pawel Mieszczanek
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, 4059, Australia
| | - Thomas M Robinson
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, 4059, Australia
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, Julius-Maximilians University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
| | - Paul D Dalton
- Department of Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, Julius-Maximilians University of Würzburg, Pleicherwall 2, 97070, Würzburg, Germany
- Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon, 1505 Franklin Boulevard, Eugene, OR, 97403-6231, USA
| | - Dietmar W Hutmacher
- Institute of Health and Biomedical Innovation, Queensland University of Technology, 60 Musk Avenue, Kelvin Grove, 4059, Australia
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Mokhtari F, Azimi B, Salehi M, Hashemikia S, Danti S. Recent advances of polymer-based piezoelectric composites for biomedical applications. J Mech Behav Biomed Mater 2021; 122:104669. [PMID: 34280866 DOI: 10.1016/j.jmbbm.2021.104669] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 04/19/2021] [Accepted: 06/27/2021] [Indexed: 02/07/2023]
Abstract
Over the past decades, electronics have become central to many aspects of biomedicine and wearable device technologies as a promising personalized healthcare platform. Lead-free piezoelectric materials for converting mechanical into electrical energy through piezoelectric transduction are of significant value in a diverse range of technological applications. Organic piezoelectric biomaterials have attracted widespread attention as the functional materials in the biomedical devices due to their advantages of excellent biocompatibility. They include synthetic and biological polymers. Many biopolymers have been discovered to possess piezoelectricity in an appreciable amount, however their investigation is still preliminary. Due to their piezoelectric properties, better known synthetic fluorinated polymers have been intensively investigated and applied in biomedical applications including controlled drug delivery systems, tissue engineering, microfluidic and artificial muscle actuators, among others. Piezoelectric polymers, especially poly (vinylidene fluoride) (PVDF) and its copolymers are increasingly receiving interest as smart biomaterials due to their ability to convert physiological movements to electrical signals when in a controllable and reproducible manner. Despite possessing the greatest piezoelectric coefficients among all piezoelectric polymers, it is often desirable to increase the electrical outputs. The most promising routes toward significant improvements in the piezoelectric response and energy-harvesting performance of such materials is loading them with various inorganic nanofillers and/or applying some modification during the fabrication process. This paper offers a comprehensive review of the principles, properties, and applications of organic piezoelectric biomaterials (polymers and polymer/ceramic composites) with special attention on PVDF-based polymers and their composites in sensors, drug delivery and tissue engineering. Subsequently focuses on the most common fabrication routes to produce piezoelectric scaffolds, tissue and sensors which is electrospinning process. Promising upcoming strategies and new piezoelectric materials and fabrication techniques for these applications are presented to enable a future integration among these applications.
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Affiliation(s)
- Fatemeh Mokhtari
- Intelligent Polymer Research Institute, University of Wollongong, Wollongong NSW, Australia
| | - Bahareh Azimi
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy; Department. of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA
| | - Maryam Salehi
- Department of Civil Engineering, The University of Memphis, Memphis, TN, USA
| | - Samaneh Hashemikia
- Faculty of Textile Engineering, Urmia University of Technology, Urmia, Iran
| | - Serena Danti
- Department of Civil and Industrial Engineering, University of Pisa, Pisa, Italy; Department. of Civil and Environmental Engineering, Massachusetts Institute of Technology (MIT), Cambridge, MA, USA.
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20
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King WE, Bowlin GL. Near-Field Electrospinning and Melt Electrowriting of Biomedical Polymers-Progress and Limitations. Polymers (Basel) 2021; 13:1097. [PMID: 33808288 PMCID: PMC8037214 DOI: 10.3390/polym13071097] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 12/18/2022] Open
Abstract
Near-field electrospinning (NFES) and melt electrowriting (MEW) are the process of extruding a fiber due to the force exerted by an electric field and collecting the fiber before bending instabilities occur. When paired with precise relative motion between the polymer source and the collector, a fiber can be directly written as dictated by preprogrammed geometry. As a result, this precise fiber control results in another dimension of scaffold tailorability for biomedical applications. In this review, biomedically relevant polymers that to date have manufactured fibers by NFES/MEW are explored and the present limitations in direct fiber writing of standardization in published setup details, fiber write throughput, and increased ease in the creation of complex scaffold geometries are discussed.
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Affiliation(s)
- William E. King
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA;
- Department of Biomedical Engineering, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Gary L. Bowlin
- Department of Biomedical Engineering, University of Memphis, Memphis, TN 38152, USA;
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21
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Robinson AJ, Pérez-Nava A, Ali SC, González-Campos JB, Holloway JL, Cosgriff-Hernandez EM. Comparative Analysis of Fiber Alignment Methods in Electrospinning. MATTER 2021; 4:821-844. [PMID: 35757372 PMCID: PMC9222234 DOI: 10.1016/j.matt.2020.12.022] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Fabrication of anisotropic materials is highly desirable in designing biomaterials and tissue engineered constructs. Electrospinning has been broadly adopted due to its versatility in producing non-woven fibrous meshes with tunable fiber diameters (from 10 nanometers to 10 microns), microarchitectures, and construct geometries. A myriad of approaches have been utilized to control fiber alignment of electrospun materials to achieve complex microarchitectures, improve mechanical properties, and provide topographical cellular cues. This review provides a comparative analysis of the techniques developed to generate fiber alignment in electrospun materials. A description of the underlying mechanisms that drive fiber alignment, setup variations for each technique, and the resulting impact on the aligned microarchitecture is provided. A critical analysis of the advantages and limitations of each approach is provided to guide researchers in method selection. Finally, future perspectives of advanced electrospinning methodologies are discussed in terms of developing a scalable method with precise control of microarchitecture.
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Affiliation(s)
- Andrew J. Robinson
- Department of Biomedical Engineering, University of Texas, Austin, Texas, 78712, United States
| | - Alejandra Pérez-Nava
- Biological and Chemical Research Institute, Universidad Michoacana de San Nicolás, de Hidalgo, Morelia, 58030, Mexico
| | - Shan C. Ali
- Department of Biomedical Engineering, University of Texas, Austin, Texas, 78712, United States
| | - J. Betzabe González-Campos
- Biological and Chemical Research Institute, Universidad Michoacana de San Nicolás, de Hidalgo, Morelia, 58030, Mexico
| | - Julianne L. Holloway
- Chemical Engineering, School for Engineering of Matter, Transport and Energy,Arizona State University, Tempe, 85287, Arizona, United States
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22
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Melt Electrospinning of Polymers: Blends, Nanocomposites, Additives and Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041808] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Melt electrospinning has been developed in the last decade as an eco-friendly and solvent-free process to fill the gap between the advantages of solution electrospinning and the need of a cost-effective technique for industrial applications. Although the benefits of using melt electrospinning compared to solution electrospinning are impressive, there are still challenges that should be solved. These mainly concern to the improvement of polymer melt processability with reduction of polymer degradation and enhancement of fiber stability; and the achievement of a good control over the fiber size and especially for the production of large scale ultrafine fibers. This review is focused in the last research works discussing the different melt processing techniques, the most significant melt processing parameters, the incorporation of different additives (e.g., viscosity and conductivity modifiers), the development of polymer blends and nanocomposites, the new potential applications and the use of drug-loaded melt electrospun scaffolds for biomedical applications.
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Anstey A, Chang E, Kim ES, Rizvi A, Kakroodi AR, Park CB, Lee PC. Nanofibrillated polymer systems: Design, application, and current state of the art. Prog Polym Sci 2021. [DOI: 10.1016/j.progpolymsci.2020.101346] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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D'Amato AR, Ding X, Wang Y. Using Solution Electrowriting to Control the Properties of Tubular Fibrous Conduits. ACS Biomater Sci Eng 2021; 7:400-407. [PMID: 33464035 DOI: 10.1021/acsbiomaterials.0c01419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Multiple additive manufacturing techniques have been developed in recent years to produce structures with tunable physical, chemical, and mechanical properties and defined architecture. Solution electrospinning, although an older and more established technique, normally cannot achieve the pattern resolution and tunability of these newer manufacturing techniques. In this study, we present solution electrowriting as a method to produce fibrous conduits from various polymers with tunable patterns, dimensions, and scaffold porosity. We demonstrate the importance of solvent selection during solution electrowriting and discuss how solvent polarity and volatility can be exploited to controllably alter the structure of the resulting scaffolds. The technique can be readily implemented with equipment for conventional electrospinning and offers versatility, control, and customization that is uncommon in the solution electrospinning field.
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Affiliation(s)
- Anthony R D'Amato
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 134 Hollister Drive, 283 Kimball Hall, Ithaca, New York 14853-0001, United States
| | - Xiaochu Ding
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 134 Hollister Drive, 283 Kimball Hall, Ithaca, New York 14853-0001, United States
| | - Yadong Wang
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 134 Hollister Drive, 283 Kimball Hall, Ithaca, New York 14853-0001, United States
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Bolle ECL, Nicdao D, Dalton PD, Dargaville TR. Production of Scaffolds Using Melt Electrospinning Writing and Cell Seeding. Methods Mol Biol 2021; 2147:111-124. [PMID: 32840814 DOI: 10.1007/978-1-0716-0611-7_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Melt electrospinning writing (MEW) is a solvent-free fabrication method for making polymer fiber scaffolds with features which include large surface area, high porosity, and controlled deposition of the fibers. These scaffolds are ideal for tissue engineering applications. Here we describe how to produce scaffolds made from poly(ε-caprolactone) using MEW and the seeding of primary human-derived dermal fibroblasts to create cell-scaffold constructs. The same methodology could be used with any number of cell types and MEW scaffold designs.
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Affiliation(s)
- Eleonore C L Bolle
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Deanna Nicdao
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia
| | - Paul D Dalton
- Department for Functional Materials in Medicine and Dentistry and Bavarian Polymer Institute, University of Würzburg, Würzburg, Germany.
| | - Tim R Dargaville
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, Australia.
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Kade JC, Dalton PD. Polymers for Melt Electrowriting. Adv Healthc Mater 2021; 10:e2001232. [PMID: 32940962 DOI: 10.1002/adhm.202001232] [Citation(s) in RCA: 66] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/27/2020] [Indexed: 12/13/2022]
Abstract
Melt electrowriting (MEW) is an emerging high-resolution additive manufacturing technique based on the electrohydrodynamic processing of polymers. MEW is predominantly used to fabricate scaffolds for biomedical applications, where the microscale fiber positioning has substantial implications in its macroscopic mechanical properties. This review gives an update on the increasing number of polymers processed via MEW and different commercial sources of the gold standard poly(ε-caprolactone) (PCL). A description of MEW-processed polymers beyond PCL is introduced, including blends and coated fibers to provide specific advantages in biomedical applications. Furthermore, a perspective on printer designs and developments is highlighted, to keep expanding the variety of processable polymers for MEW.
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Affiliation(s)
- Juliane C. Kade
- Department of Functional Materials in Medicine and Dentistry Bavarian Polymer Institute University Clinic Würzburg Pleicherwall 2 97070 Würzburg Germany
| | - Paul D. Dalton
- Department of Functional Materials in Medicine and Dentistry Bavarian Polymer Institute University Clinic Würzburg Pleicherwall 2 97070 Würzburg Germany
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van Kampen KA, Olaret E, Stancu IC, Moroni L, Mota C. Controllable four axis extrusion-based additive manufacturing system for the fabrication of tubular scaffolds with tailorable mechanical properties. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111472. [PMID: 33321595 DOI: 10.1016/j.msec.2020.111472] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/21/2020] [Accepted: 07/13/2020] [Indexed: 11/17/2022]
Abstract
Many tubular tissues such as blood vessels and trachea can suffer long-segmental defects through trauma and disease. With current limitations in the use of autologous grafts, the need for a synthetic substitute is of continuous interest as possible alternatives. Fabrication of these tubular organs is commonly done with techniques such as electrospinning and melt electrowriting using a rotational collector. Current additive manufacturing (AM) systems do not commonly implement the use of a rotational axis, which limits their application for the fabrication of tubular scaffolds. In this study, a four axis extrusion-based AM system similar to fused deposition modeling (FDM) has been developed to create tubular hollow scaffolds. A rectangular and a diamond pore design were further investigated for mechanical characterization, as a standard and a biomimicry pore geometry respectively. We demonstrated that in the radial compression mode the diamond pore design had a higher Young's modulus (19,8 ± 0,7 MPa compared to 2,8 ± 0,5 MPa), while in the longitudinal tensile mode the rectangular pore design had a higher Young's modulus (5,8 ± 0,2 MPa compared to 0,1 ± 0,01 MPa). Three-point bending analyses revealed that the diamond pore design is more resistant to luminal collapse compared to the rectangular design. This data showed that by changing the scaffold pore design, a wide range of mechanical properties could be obtained. Furthermore, a full control over scaffold design and geometry can be achieved with the developed 4-axis extrusion-based system, which has not been reported with other techniques. This flexibility allow the manufacturing of scaffolds for diverse tubular tissue regeneration applications by designing suitable deposition patterns to match their mechanical pre-requisites.
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Affiliation(s)
- Kenny A van Kampen
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitsingel 40, 6229ER Maastricht, the Netherlands
| | - Elena Olaret
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Izabela-Cristina Stancu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitsingel 40, 6229ER Maastricht, the Netherlands
| | - Carlos Mota
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Universiteitsingel 40, 6229ER Maastricht, the Netherlands.
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A 3D-printed biomaterials-based platform to advance established therapy avenues against primary bone cancers. Acta Biomater 2020; 118:69-82. [PMID: 33039595 DOI: 10.1016/j.actbio.2020.10.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 10/01/2020] [Accepted: 10/06/2020] [Indexed: 12/14/2022]
Abstract
In this study we developed and validated a 3D-printed drug delivery system (3DPDDS) to 1) improve local treatment efficacy of commonly applied chemotherapeutic agents in bone cancers to ultimately decrease their systemic side effects and 2) explore its concomitant diagnostic potential. Thus, we locally applied 3D-printed medical-grade polycaprolactone (mPCL) scaffolds loaded with Doxorubicin (DOX) and measured its effect in a humanized primary bone cancer model. A bioengineered species-sensitive orthotopic humanized bone niche was established at the femur of NOD-SCID IL2Rγnull (NSG) mice. After 6 weeks of in vivo maturation into a humanized ossicle, Luc-SAOS-2 cells were injected orthotopically to induce local growth of osteosarcoma (OS). After 16 weeks of OS development, a biopsy-like defect was created within the tumor tissue to locally implant the 3DPDDS with 3 different DOX loading doses into the defect zone. Histo- and morphological analysis demonstrated a typical invasive OS growth pattern inside a functionally intact humanized ossicle as well as metastatic spread to the murine lung parenchyma. Analysis of the 3DPDDS revealed the implants' ability to inhibit tumor infiltration and showed local tumor cell death adjacent to the scaffolds without any systemic side effects. Together these results indicate a therapeutic and diagnostic capacity of 3DPDDS in an orthotopic humanized OS tumor model.
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Wu DJ, Vonk NH, Lamers BA, Castilho M, Malda J, Hoefnagels JP, Dankers PY. Anisotropic hygro-expansion in hydrogel fibers owing to uniting 3D electrowriting and supramolecular polymer assembly. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.110099] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Tandon S, Kandasubramanian B, Ibrahim SM. Silk-Based Composite Scaffolds for Tissue Engineering Applications. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c02195] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Saloni Tandon
- Biotechnology Lab, Center for Converging Technologies, University of Rajasthan, JLN Marg, Jaipur-302004, Rajasthan, India
| | - Balasubramanian Kandasubramanian
- Nano Surface Texturing Lab, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology (DU), Girinagar, Pune-411025, Maharashtra, India
| | - Sobhy M. Ibrahim
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Engineering a Humanised Niche to Support Human Haematopoiesis in Mice: Novel Opportunities in Modelling Cancer. Cancers (Basel) 2020; 12:cancers12082205. [PMID: 32781703 PMCID: PMC7466161 DOI: 10.3390/cancers12082205] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 12/18/2022] Open
Abstract
Despite the bone marrow microenvironment being widely recognised as a key player in cancer research, the current animal models that represent a human haematopoietic system lack the contribution of the humanised marrow microenvironment. Here we describe a murine model that relies on the combination of an orthotopic humanised tissue-engineered bone construct (ohTEBC) with patient-specific bone marrow (BM) cells to create a humanised bone marrow (hBM) niche capable of supporting the engraftment of human haematopoietic cells. Results showed that this model supports the engraftment of human CD34+ cells from a healthy BM with human haematopoietic cells migrating into the mouse BM, human BM compartment, spleen and peripheral blood. We compared these results with the engraftment capacity of human CD34+ cells obtained from patients with multiple myeloma (MM). We demonstrated that CD34+ cells derived from a diseased BM had a reduced engraftment potential compared to healthy patients and that a higher cell dose is required to achieve engraftment of human haematopoietic cells in peripheral blood. Finally, we observed that hematopoietic cells obtained from the mobilised peripheral blood of patients yields a higher number of CD34+, overcoming this problem. In conclusion, this humanised mouse model has potential as a unique and patient-specific pre-clinical platform for the study of tumour–microenvironment interactions, including human bone and haematopoietic cells, and could, in the future, serve as a drug testing platform.
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He J, Zhang B, Li Z, Mao M, Li J, Han K, Li D. High-resolution electrohydrodynamic bioprinting: a new biofabrication strategy for biomimetic micro/nanoscale architectures and living tissue constructs. Biofabrication 2020; 12:042002. [PMID: 32615543 DOI: 10.1088/1758-5090/aba1fa] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Electrohydrodynamic (EHD) printing is a newly emerging additive manufacturing strategy for the controlled fabrication of three-dimensional (3D) micro/nanoscale architectures. This unique superiority makes it particularly suitable for the biofabrication of artificial tissue analogs with biomimetic structural organizations similar to the scales of native extracellular matrix (ECM) or living cells, which shows great potentials to precisely regulate cellular behaviors and tissue regeneration. Here the state-of-the-art advancements of high-resolution EHD bioprinting were reviewed mainly including melt-based and solution-based processes for the fabrication of micro/nanoscale fibrous scaffolds and living tissues constructs. The related printing materials, innovations on structure design and printing processes, functionalization of the resultant architectures as well as their effects on the mechanical and biological properties of the EHD-printed structures were introduced and analyzed. The recent explorations on the EHD cell printing for high-resolution cell-laden microgel patterning and 3D construct fabrication were highlighted. The major challenges as well as possible solutions to translate EHD bioprinting into a mature and prevalent biofabrication strategy were finally discussed.
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Affiliation(s)
- Jiankang He
- State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China. Rapid manufacturing research center of Shaanxi Province, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China. Author to whom any correspondence should be addressed
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Saidy NT, Shabab T, Bas O, Rojas-González DM, Menne M, Henry T, Hutmacher DW, Mela P, De-Juan-Pardo EM. Melt Electrowriting of Complex 3D Anatomically Relevant Scaffolds. Front Bioeng Biotechnol 2020; 8:793. [PMID: 32850700 PMCID: PMC7396698 DOI: 10.3389/fbioe.2020.00793] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022] Open
Abstract
The manufacture of fibrous scaffolds with tailored micrometric features and anatomically relevant three-dimensional (3D) geometries for soft tissue engineering applications remains a great challenge. Melt electrowriting (MEW) is an advanced additive manufacturing technique capable of depositing predefined micrometric fibers. However, it has been so far inherently limited to simple planar and tubular scaffold geometries because of the need to avoid polymer jet instabilities. In this work, we surmount the technical boundaries of MEW to enable the manufacture of complex fibrous scaffolds with simultaneous controlled micrometric and patient-specific anatomic features. As an example of complex geometry, aortic root scaffolds featuring the sinuses of Valsalva were realized. By modeling the electric field strength associated with the MEW process for these constructs, we found that the combination of a conductive core mandrel with a non-conductive 3D printed model reproducing the complex geometry minimized the variability of the electric field thus enabling the accurate deposition of fibers. We validated these findings experimentally and leveraged the micrometric resolution of MEW to fabricate unprecedented fibrous aortic root scaffolds with anatomically relevant shapes and biomimetic microstructures and mechanical properties. Furthermore, we demonstrated the fabrication of patient-specific aortic root constructs from the 3D reconstruction of computed tomography clinical data.
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Affiliation(s)
- Navid T Saidy
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD, Australia.,School of Dentistry, The University of Queensland, Herston, QLD, Australia
| | - Tara Shabab
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD, Australia
| | - Onur Bas
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD, Australia.,ARC ITTC in Additive Biomanufacturing, Queensland University of Technology, Musk Avenue, Brisbane, QLD, Australia
| | - Diana M Rojas-González
- Medical Materials and Implants, Department of Mechanical Engineering, Technical University of Munich, Garching, Germany
| | - Matthias Menne
- Department of Cardiovascular Engineering, Institute of Applied Medical Engineering, Helmholtz Institute, Medical Faculty, RWTH Aachen University, Aachen, Germany
| | - Tim Henry
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD, Australia
| | - Dietmar W Hutmacher
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD, Australia.,ARC ITTC in Additive Biomanufacturing, Queensland University of Technology, Musk Avenue, Brisbane, QLD, Australia.,Institute for Advanced Study, Technical University of Munich, Garching, Germany
| | - Petra Mela
- Medical Materials and Implants, Department of Mechanical Engineering, Technical University of Munich, Garching, Germany.,Department of Biohybrid and Medical Textiles (BioTex), AME-Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, Aachen, Germany
| | - Elena M De-Juan-Pardo
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Kelvin Grove, QLD, Australia.,Translational 3d Printing Laboratory for Advanced Tissue Engineering (T3mPLATE), Harry Perkins Institute of Medical Research, QEII Medical Centre, Nedlands and Centre for Medical Research, The University of Western Australia, Perth, WA, Australia.,Department of Mechanical Engineering, School of Engineering, The University of Western Australia, Perth, WA, Australia
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Cubo-Mateo N, Rodríguez-Lorenzo LM. Design of Thermoplastic 3D-Printed Scaffolds for Bone Tissue Engineering: Influence of Parameters of "Hidden" Importance in the Physical Properties of Scaffolds. Polymers (Basel) 2020; 12:E1546. [PMID: 32668729 PMCID: PMC7408024 DOI: 10.3390/polym12071546] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 12/17/2022] Open
Abstract
Additive manufacturing (AM) techniques are becoming the approaches of choice for the construction of scaffolds in tissue engineering. However, the development of 3D printing in this field brings unique challenges, which must be accounted for in the design of experiments. The common printing process parameters must be considered as important factors in the design and quality of final 3D-printed products. In this work, we study the influence of some parameters in the design and fabrication of PCL scaffolds, such as the number and orientation of layers, but also others of "hidden" importance, such as the cooling down rate while printing, or the position of the starting point in each layer. These factors can have an important impact oin the final porosity and mechanical performance of the scaffolds. A pure polycaprolactone filament was used. Three different configurations were selected for the design of the internal structure of the scaffolds: a solid one with alternate layers (solid) (0°, 90°), a porous one with 30% infill and alternate layers (ALT) (0°, 90°) and a non-alternated configuration consisting in printing three piled layers before changing the orientation (n-ALT) (0°, 0°, 0°, 90°, 90°, 90°). The nozzle temperature was set to 172 °C for printing and the build plate to 40 °C. Strand diameters of 361 ± 26 µm for room temperature cooling down and of 290 ± 30 µm for forced cooling down, were obtained. A compression elastic modulus of 2.12 ± 0.31 MPa for n-ALT and 8.58 ± 0.14 MPa for ALT scaffolds were obtained. The cooling down rate has been observed as an important parameter for the final characteristics of the scaffold.
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Affiliation(s)
- Nieves Cubo-Mateo
- Sensors and Ultrasonic Systems Department, Institute for Physical and Information Technologies, ITEFI-CSIC, 28006 Madrid, Spain;
- Department of Polymeric Nanomaterials and Biomaterials, ICTP-CSIC, 28006 Madrid, Spain
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Black C, Kanczler JM, de Andrés MC, White LJ, Savi FM, Bas O, Saifzadeh S, Henkel J, Zannettino A, Gronthos S, Woodruff MA, Hutmacher DW, Oreffo ROC. Characterisation and evaluation of the regenerative capacity of Stro-4+ enriched bone marrow mesenchymal stromal cells using bovine extracellular matrix hydrogel and a novel biocompatible melt electro-written medical-grade polycaprolactone scaffold. Biomaterials 2020; 247:119998. [PMID: 32251928 PMCID: PMC7184676 DOI: 10.1016/j.biomaterials.2020.119998] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 03/20/2020] [Accepted: 03/20/2020] [Indexed: 12/15/2022]
Abstract
Many skeletal tissue regenerative strategies centre around the multifunctional properties of bone marrow derived stromal cells (BMSC) or mesenchymal stem/stromal cells (MSC)/bone marrow derived skeletal stem cells (SSC). Specific identification of these particular stem cells has been inconclusive. However, enriching these heterogeneous bone marrow cell populations with characterised skeletal progenitor markers has been a contributing factor in successful skeletal bone regeneration and repair strategies. In the current studies we have isolated, characterised and enriched ovine bone marrow mesenchymal stromal cells (oBMSCs) using a specific antibody, Stro-4, examined their multipotential differentiation capacity and, in translational studies combined Stro-4+ oBMSCs with a bovine extracellular matrix (bECM) hydrogel and a biocompatible melt electro-written medical-grade polycaprolactone scaffold, and tested their bone regenerative capacity in a small in vivo, highly vascularised, chick chorioallantoic membrane (CAM) model and a preclinical, critical-sized ovine segmental tibial defect model. Proliferation rates and CFU-F formation were similar between unselected and Stro-4+ oBMSCs. Col1A1, Col2A1, mSOX-9, PPARG gene expression were upregulated in respective osteogenic, chondrogenic and adipogenic culture conditions compared to basal conditions with no significant difference between Stro-4+ and unselected oBMSCs. In contrast, proteoglycan expression, alkaline phosphatase activity and adipogenesis were significantly upregulated in the Stro-4+ cells. Furthermore, with extended cultures, the oBMSCs had a predisposition to maintain a strong chondrogenic phenotype. In the CAM model Stro-4+ oBMSCs/bECM hydrogel was able to induce bone formation at a femur fracture site compared to bECM hydrogel and control blank defect alone. Translational studies in a critical-sized ovine tibial defect showed autograft samples contained significantly more bone, (4250.63 mm3, SD = 1485.57) than blank (1045.29 mm3, SD = 219.68) ECM-hydrogel (1152.58 mm3, SD = 191.95) and Stro-4+/ECM-hydrogel (1127.95 mm3, SD = 166.44) groups. Stro-4+ oBMSCs demonstrated a potential to aid bone repair in vitro and in a small in vivo bone defect model using select scaffolds. However, critically, translation to a large related preclinical model demonstrated the complexities of bringing small scale reported stem-cell material therapies to a clinically relevant model and thus facilitate progression to the clinic.
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Affiliation(s)
- C Black
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development & Health, Institute of Developmental Sciences, University of Southampton, SO16 6YD, UK
| | - J M Kanczler
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development & Health, Institute of Developmental Sciences, University of Southampton, SO16 6YD, UK
| | - M C de Andrés
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development & Health, Institute of Developmental Sciences, University of Southampton, SO16 6YD, UK; Cartilage Epigenetics Group, Rheumatology Division, Biomedical Research Institute of A Coruña (INIBIC), Hospital Universitario de A Coruña-CHUAC, 15006 A Coruña ,Spain
| | - L J White
- School of Pharmacy, Biodiscovery Institute, University Park, University of Nottingham, Nottingham, NG7 2RD, UK
| | - F M Savi
- ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; Institute of Health Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - O Bas
- ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; Institute of Health Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - S Saifzadeh
- ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia
| | - J Henkel
- ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia
| | - A Zannettino
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia and Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia and Central Adelaide Local Health Network, Adelaide, South Australia, Australia
| | - S Gronthos
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, Australia and Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - M A Woodruff
- ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia
| | - D W Hutmacher
- ARC Industrial Transformation Training Centre in Additive Biomanufacturing, Queensland University of Technology (QUT), Brisbane, QLD, 4059, Australia; Institute of Health Biomedical Innovation, Queensland University of Technology, Brisbane, QLD, 4059, Australia
| | - R O C Oreffo
- Bone & Joint Research Group, Centre for Human Development, Stem Cells and Regeneration, Human Development & Health, Institute of Developmental Sciences, University of Southampton, SO16 6YD, UK; College of Biomedical Engineering, China Medical University, Taichung, 40402, Taiwan.
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Paxton NC, Lanaro M, Bo A, Crooks N, Ross MT, Green N, Tetsworth K, Allenby MC, Gu Y, Wong CS, Powell SK, Woodruff MA. Design tools for patient specific and highly controlled melt electrowritten scaffolds. J Mech Behav Biomed Mater 2020; 105:103695. [DOI: 10.1016/j.jmbbm.2020.103695] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 01/16/2020] [Accepted: 02/10/2020] [Indexed: 11/30/2022]
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Landgraf M, Lahr CA, Kaur I, Shafiee A, Sanchez-Herrero A, Janowicz PW, Ravichandran A, Howard CB, Cifuentes-Rius A, McGovern JA, Voelcker NH, Hutmacher DW. Targeted camptothecin delivery via silicon nanoparticles reduces breast cancer metastasis. Biomaterials 2020; 240:119791. [DOI: 10.1016/j.biomaterials.2020.119791] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 01/10/2020] [Accepted: 01/14/2020] [Indexed: 12/21/2022]
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Bongiovanni Abel S, Montini Ballarin F, Abraham GA. Combination of electrospinning with other techniques for the fabrication of 3D polymeric and composite nanofibrous scaffolds with improved cellular interactions. NANOTECHNOLOGY 2020; 31:172002. [PMID: 31931493 DOI: 10.1088/1361-6528/ab6ab4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The development of three-dimensional (3D) scaffolds with physical and chemical topological cues at the macro-, micro-, and nanometer scale is urgently needed for successful tissue engineering applications. 3D scaffolds can be manufactured by a wide variety of techniques. Electrospinning technology has emerged as a powerful manufacturing technique to produce non-woven nanofibrous scaffolds with very interesting features for tissue engineering products. However, electrospun scaffolds have some inherent limitations that compromise the regeneration of thick and complex tissues. By integrating electrospinning and other fabrication technologies, multifunctional 3D fibrous assemblies with micro/nanotopographical features can be created. The proper combination of techniques leads to materials with nano and macro-structure, allowing an improvement in the biological performance of tissue-engineered constructs. In this review, we focus on the most relevant strategies to produce electrospun polymer/composite scaffolds with 3D architecture. A detailed description of procedures involving physical and chemical agents to create structures with large pores and 3D fiber assemblies is introduced. Finally, characterization and biological assays including in vitro and in vivo studies of structures intended for the regeneration of functional tissues are briefly presented and discussed.
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Affiliation(s)
- Silvestre Bongiovanni Abel
- Research Institute for Materials Science and Technology, INTEMA (UNMdP-CONICET). Av. Colón 10850, B7606BWV, Mar del Plata, Argentina
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Gwiazda M, Kumar S, Świeszkowski W, Ivanovski S, Vaquette C. The effect of melt electrospun writing fiber orientation onto cellular organization and mechanical properties for application in Anterior Cruciate Ligament tissue engineering. J Mech Behav Biomed Mater 2020; 104:103631. [PMID: 32174392 DOI: 10.1016/j.jmbbm.2020.103631] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/23/2019] [Accepted: 01/08/2020] [Indexed: 01/13/2023]
Abstract
The effect of melt electrospun writing fiber arrangement on cellular behavior has not yet been thoroughly investigated. Cellular orientation is particularly important in the context of ligament tissue engineering for orthopedic applications whereby a high degree of cell alignment is present in the native tissue. The aim of this study was to investigate the response of human mesenchymal stem cells (hMSC) to three different patterned porous polycaprolactone scaffolds (aligned, crimped and random) fabricated by melt electrospinning writing, resulting in 20 μm diameter electrospun fibers. Cell orientation was investigated over 4 weeks in vitro and it was demonstrated that the aligned pattern was capable of orientating the hMSCs towards the main direction of the fibers and this feature was maintained over the entire culture period whereas the orientation was rapidly lost in the crimped pattern. In order to fabricate a functional scaffold for ligament tissue engineering, the scaffolds were rolled in three bundles, subsequently braided and combined with a bone compartment (consisting of a melt electrospun scaffold seeded with osteogenically induced hMSCs) for the development of a Bone-Ligament-Bone (BLB) construct. The mechanical properties of non-cellularized and cellularized BLB constructs were assessed under both quasi-static and cyclic conditions. This revealed that the in vitro maturation significantly softened the BLB constructs and that the mechanical properties were several fold lower than those of native tissue. The cyclic testing demonstrated that the presence of cell sheets resulted in increased resilience and elasticity, even though the global mechanical properties were decreased for the in vitro matured constructs (regardless of the pattern). In conclusion, we demonstrated that melt electrospinning writing fiber organization can induce spontaneous cell alignment and that large cellularized BLB constructs with complex geometry can achieve mechanical resilience under cyclic stretching.
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Affiliation(s)
- Marcin Gwiazda
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland; Griffith Health Institute, Griffith University, Gold Coast, Australia
| | - Sudheesh Kumar
- Griffith Health Institute, Griffith University, Gold Coast, Australia
| | - Wojciech Świeszkowski
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Saso Ivanovski
- The University of Queensland, School of Dentistry, Herston, Queensland, Australia
| | - Cedryck Vaquette
- The University of Queensland, School of Dentistry, Herston, Queensland, Australia.
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40
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Li X, Zheng Y, Mu X, Xin B, Lin L. Investigation into Jet Motion and Fiber Properties Induced by Electric Fields in Melt Electrospinning. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b05465] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xueqin Li
- School of Textiles and Fashion, Shanghai University of Engineering Science, Songjiang, Shanghai 201620, The People’s Republic of China
| | - Yuansheng Zheng
- School of Textiles and Fashion, Shanghai University of Engineering Science, Songjiang, Shanghai 201620, The People’s Republic of China
| | - Xiaoqi Mu
- School of Textiles and Fashion, Shanghai University of Engineering Science, Songjiang, Shanghai 201620, The People’s Republic of China
| | - Binjie Xin
- School of Textiles and Fashion, Shanghai University of Engineering Science, Songjiang, Shanghai 201620, The People’s Republic of China
| | - Lantian Lin
- School of Textiles and Fashion, Shanghai University of Engineering Science, Songjiang, Shanghai 201620, The People’s Republic of China
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41
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Schutrum BE, Whitman MA, Fischbach C. Biomaterials-Based Model Systems to Study Tumor–Microenvironment Interactions. Biomater Sci 2020. [DOI: 10.1016/b978-0-12-816137-1.00077-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Kristen M, Ainsworth MJ. Fiber Scaffold Patterning for Mending Hearts: 3D Organization Bringing the Next Step. Adv Healthc Mater 2020; 9:e1900775. [PMID: 31603288 PMCID: PMC7116178 DOI: 10.1002/adhm.201900775] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/14/2019] [Indexed: 12/14/2022]
Abstract
Heart failure (HF) is a leading cause of death worldwide. The most common conditions that lead to HF are coronary artery disease, myocardial infarction, valve disorders, high blood pressure, and cardiomyopathy. Due to the limited regenerative capacity of the heart, the only curative therapy currently available is heart transplantation. Therefore, there is a great need for the development of novel regenerative strategies to repair the injured myocardium, replace damaged valves, and treat occluded coronary arteries. Recent advances in manufacturing technologies have resulted in the precise fabrication of 3D fiber scaffolds with high architectural control that can support and guide new tissue growth, opening exciting new avenues for repair of the human heart. This review discusses the recent advancements in the novel research field of fiber patterning manufacturing technologies for cardiac tissue engineering (cTE) and to what extent these technologies could meet the requirements of the highly organized and structured cardiac tissues. Additionally, future directions of these novel fiber patterning technologies, designs, and applicability to advance cTE are presented.
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Affiliation(s)
- Marleen Kristen
- Regenerative Medicine Center, University Medical Center Utrecht,
Utrecht 3584 CT, The Netherlands; Department of Orthopedics, University Medical
Center Utrecht, Utrecht 3584 CX, The Netherlands
| | - Madison J. Ainsworth
- Regenerative Medicine Center, University Medical Center Utrecht,
Utrecht 3584 CT, The Netherlands; Department of Orthopedics, University Medical
Center Utrecht, Utrecht 3584 CX, The Netherlands
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Landgraf M, Lahr CA, Sanchez-Herrero A, Meinert C, Shokoohmand A, Pollock PM, Hutmacher DW, Shafiee A, McGovern JA. Humanized bone facilitates prostate cancer metastasis and recapitulates therapeutic effects of zoledronic acid in vivo. Bone Res 2019; 7:31. [PMID: 31646018 PMCID: PMC6804745 DOI: 10.1038/s41413-019-0072-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/26/2019] [Accepted: 08/05/2019] [Indexed: 12/24/2022] Open
Abstract
Advanced prostate cancer (PCa) is known for its high prevalence to metastasize to bone, at which point it is considered incurable. Despite significant effort, there is no animal model capable of recapitulating the complexity of PCa bone metastasis. The humanized mouse model for PCa bone metastasis used in this study aims to provide a platform for the assessment of new drugs by recapitulating the human-human cell interactions relevant for disease development and progression. The humanized tissue-engineered bone construct (hTEBC) was created within NOD-scid IL2rgnull (NSG) mice and was used for the study of experimental PC3-Luc bone metastases. It was confirmed that PC3-Luc cells preferentially grew in the hTEBC compared with murine bone. The translational potential of the humanized mouse model for PCa bone metastasis was evaluated with two clinically approved osteoprotective therapies, the non-species-specific bisphosphonate zoledronic acid (ZA) or the human-specific antibody Denosumab, both targeting Receptor Activator of Nuclear Factor Kappa-Β Ligand. ZA, but not Denosumab, significantly decreased metastases in hTEBCs, but not murine femora. These results highlight the importance of humanized models for the preclinical research on PCa bone metastasis and indicate the potential of the bioengineered mouse model to closely mimic the metastatic cascade of PCa cells to human bone. Eventually, it will enable the development of new effective antimetastatic treatments.
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Affiliation(s)
- Marietta Landgraf
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Christoph A. Lahr
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Alvaro Sanchez-Herrero
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Christoph Meinert
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Ali Shokoohmand
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Pamela M. Pollock
- School of Biomedical Science, Institute of Health and Biomedical Innovation, Translational Research Institute, Queensland University of Technology, Brisbane, Australia
| | - Dietmar W. Hutmacher
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
- Australian Research Council (ARC) Training Centre in Additive Biomanufacturing, Queensland University of Technology, Brisbane, Australia
| | - Abbas Shafiee
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
- UQ Diamantina Institute, Translational Research Institute, The University of Queensland, Brisbane, QLD Australia
| | - Jacqui A. McGovern
- Centre in Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
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44
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Biomimicry in Bio-Manufacturing: Developments in Melt Electrospinning Writing Technology Towards Hybrid Biomanufacturing. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9173540] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Melt electrospinning writing has been emerged as a promising technique in the field of tissue engineering, with the capability of fabricating controllable and highly ordered complex three-dimensional geometries from a wide range of polymers. This three-dimensional (3D) printing method can be used to fabricate scaffolds biomimicking extracellular matrix of replaced tissue with the required mechanical properties. However, controlled and homogeneous cell attachment on melt electrospun fibers is a challenge. The combination of melt electrospinning writing with other tissue engineering approaches, called hybrid biomanufacturing, has introduced new perspectives and increased its potential applications in tissue engineering. In this review, principles and key parameters, challenges, and opportunities of melt electrospinning writing, and particularly, recent approaches and materials in this field are introduced. Subsequently, hybrid biomanufacturing strategies are presented for improved biological and mechanical properties of the manufactured porous structures. An overview of the possible hybrid setups and applications, future perspective of hybrid processes, guidelines, and opportunities in different areas of tissue/organ engineering are also highlighted.
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45
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Shokoohmand A, Ren J, Baldwin J, Atack A, Shafiee A, Theodoropoulos C, Wille ML, Tran PA, Bray LJ, Smith D, Chetty N, Pollock PM, Hutmacher DW, Clements JA, Williams ED, Bock N. Microenvironment engineering of osteoblastic bone metastases reveals osteomimicry of patient-derived prostate cancer xenografts. Biomaterials 2019; 220:119402. [PMID: 31400612 DOI: 10.1016/j.biomaterials.2019.119402] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 07/16/2019] [Accepted: 07/30/2019] [Indexed: 01/01/2023]
Abstract
Representative in vitro models that mimic the native bone tumor microenvironment are warranted to support the development of more successful treatments for bone metastases. Here, we have developed a primary cell 3D model consisting of a human osteoblast-derived tissue-engineered construct (hOTEC) indirectly co-cultured with patient-derived prostate cancer xenografts (PDXs), in order to study molecular interactions in a patient-derived microenvironment context. The engineered biomimetic microenvironment had high mineralization and embedded osteocytes, and supported a high degree of cancer cell osteomimicry at the gene, protein and mineralization levels when co-cultured with prostate cancer PDXs from a lymph node metastasis (LuCaP35) and bone metastasis (BM18) from patients with primary prostate cancer. This fully patient-derived model is a promising tool for the assessment of new molecular mechanisms and as a personalized pre-clinical platform for therapy testing for patients with prostate cancer bone metastases.
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Affiliation(s)
- Ali Shokoohmand
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Australian Prostate Cancer Research Centre, Queensland (APCRC-Q), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Jiongyu Ren
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Jeremy Baldwin
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Anthony Atack
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; Australian Prostate Cancer Research Centre, Queensland (APCRC-Q), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; School of Biomedical Sciences, Faculty of Health, QUT, Brisbane, QLD, Australia
| | - Abbas Shafiee
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Christina Theodoropoulos
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Marie-Luise Wille
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Phong A Tran
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Laura J Bray
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia
| | - Deborah Smith
- Cancer Pathology Research Group, Mater Research Institute, The University of Queensland, Translational Research Institute, Woolloongabba, QLD, Australia; Department of Anatomical Pathology, Mater Hospital Brisbane, QLD, Australia
| | - Naven Chetty
- Cancer Pathology Research Group, Mater Research Institute, The University of Queensland, Translational Research Institute, Woolloongabba, QLD, Australia; Department of Anatomical Pathology, Mater Hospital Brisbane, QLD, Australia
| | - Pamela M Pollock
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; School of Biomedical Sciences, Faculty of Health, QUT, Brisbane, QLD, Australia
| | - Dietmar W Hutmacher
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty (SEF), QUT, Brisbane, QLD, Australia; Australian Prostate Cancer Research Centre, Queensland (APCRC-Q), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia; Australian Research Council (ARC) Training Centre in Additive Biomanufacturing, QUT, Kelvin Grove, QLD, Australia; School of Biomedical Sciences, Faculty of Health, QUT, Brisbane, QLD, Australia
| | - Judith A Clements
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; Australian Prostate Cancer Research Centre, Queensland (APCRC-Q), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; Australian Research Council (ARC) Training Centre in Additive Biomanufacturing, QUT, Kelvin Grove, QLD, Australia; School of Biomedical Sciences, Faculty of Health, QUT, Brisbane, QLD, Australia
| | - Elizabeth D Williams
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; Australian Prostate Cancer Research Centre, Queensland (APCRC-Q), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; School of Biomedical Sciences, Faculty of Health, QUT, Brisbane, QLD, Australia
| | - Nathalie Bock
- Institute of Health and Biomedical Innovation (IHBI), Queensland University of Technology (QUT), Brisbane, QLD, Australia; Australian Prostate Cancer Research Centre, Queensland (APCRC-Q), QUT, Brisbane, QLD, Australia; Translational Research Institute (TRI), QUT, Brisbane, QLD, Australia; Centre in Regenerative Medicine, IHBI, QUT, Kelvin Grove, QLD, Australia; School of Biomedical Sciences, Faculty of Health, QUT, Brisbane, QLD, Australia.
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46
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Tamay DG, Dursun Usal T, Alagoz AS, Yucel D, Hasirci N, Hasirci V. 3D and 4D Printing of Polymers for Tissue Engineering Applications. Front Bioeng Biotechnol 2019; 7:164. [PMID: 31338366 PMCID: PMC6629835 DOI: 10.3389/fbioe.2019.00164] [Citation(s) in RCA: 182] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 06/21/2019] [Indexed: 12/18/2022] Open
Abstract
Three-dimensional (3D) and Four-dimensional (4D) printing emerged as the next generation of fabrication techniques, spanning across various research areas, such as engineering, chemistry, biology, computer science, and materials science. Three-dimensional printing enables the fabrication of complex forms with high precision, through a layer-by-layer addition of different materials. Use of intelligent materials which change shape or color, produce an electrical current, become bioactive, or perform an intended function in response to an external stimulus, paves the way for the production of dynamic 3D structures, which is now called 4D printing. 3D and 4D printing techniques have great potential in the production of scaffolds to be applied in tissue engineering, especially in constructing patient specific scaffolds. Furthermore, physical and chemical guidance cues can be printed with these methods to improve the extent and rate of targeted tissue regeneration. This review presents a comprehensive survey of 3D and 4D printing methods, and the advantage of their use in tissue regeneration over other scaffold production approaches.
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Affiliation(s)
- Dilara Goksu Tamay
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara, Turkey
| | - Tugba Dursun Usal
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara, Turkey
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Ayse Selcen Alagoz
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
| | - Deniz Yucel
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
- Department of Histology and Embryology, School of Medicine, Acıbadem Mehmet Ali Aydinlar University, Istanbul, Turkey
| | - Nesrin Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara, Turkey
- Department of Biomedical Engineering, Middle East Technical University, Ankara, Turkey
- Department of Chemistry, Middle East Technical University, Ankara, Turkey
| | - Vasif Hasirci
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Ankara, Turkey
- Department of Biotechnology, Middle East Technical University, Ankara, Turkey
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
- Department of Medical Engineering, School of Engineering, Acıbadem Mehmet Ali Aydinlar University, Istanbul, Turkey
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47
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Bolle ECL, Bartnikowski N, Haridas P, Parker TJ, Fraser JF, Gregory SD, Dargaville TR. Improving skin integration around long-term percutaneous devices using fibrous scaffolds in a reconstructed human skin equivalent model. J Biomed Mater Res B Appl Biomater 2019; 108:738-749. [PMID: 31169980 DOI: 10.1002/jbm.b.34428] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/03/2019] [Accepted: 05/21/2019] [Indexed: 01/02/2023]
Abstract
The interface between synthetic percutaneous devices and skin is a common area for bacterial infection, which may ultimately result in failure of the device. Better integration of percutaneous devices with skin may help reduce infection rates due to the creation of a dermal seal. However, the mismatch in material and chemical properties of devices and skin presents a challenge for closing the dermal gap at the skin-device interface. Here, we have used a tissue engineering approach to tissue integration by creating a highly fibrous poly(ε-caprolactone) scaffold using melt electrowriting and seeding this with dermal fibroblasts, followed by maturation and insertion into a full-thickness defect made in an ex vivo skin model. The integration of seeded scaffolds was compared with controls including a non-seeded scaffold and a polymer tube with a smooth surface. Dermal fibroblast inclusion in the scaffold and epidermal upgrowth versus downgrowth/marsupialization around the device were used as measures of integration. Based on these measures, almost all pre-seeded scaffolds performed better than both the non-seeded scaffolds and smooth tubes. The hypothesis is that the fibroblasts act as a barrier to epithelial downward migration, and provide healthy tissue for nascent epidermal development.
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Affiliation(s)
- Eleonore C L Bolle
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia.,Innovative Cardiovascular Engineering and Technology Laboratory (ICETLAB), Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia
| | - Nicole Bartnikowski
- School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia.,Innovative Cardiovascular Engineering and Technology Laboratory (ICETLAB), Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia
| | - Parvathi Haridas
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Tony J Parker
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
| | - John F Fraser
- Innovative Cardiovascular Engineering and Technology Laboratory (ICETLAB), Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia.,School of Medicine, University of Queensland, Brisbane, Queensland, Australia
| | - Shaun D Gregory
- Innovative Cardiovascular Engineering and Technology Laboratory (ICETLAB), Critical Care Research Group, The Prince Charles Hospital, Chermside, Queensland, Australia.,School of Medicine, University of Queensland, Brisbane, Queensland, Australia.,Department of Mechanical and Aerospace Engineering, Monash University, Melbourne, Victoria, Australia.,Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Tim R Dargaville
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Queensland, Australia.,School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Queensland, Australia
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48
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Paxton NC, Ren J, Ainsworth MJ, Solanki AK, Jones JR, Allenby MC, Stevens MM, Woodruff MA. Rheological Characterization of Biomaterials Directs Additive Manufacturing of Strontium‐Substituted Bioactive Glass/Polycaprolactone Microfibers. Macromol Rapid Commun 2019; 40:e1900019. [DOI: 10.1002/marc.201900019] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 03/04/2019] [Indexed: 01/22/2023]
Affiliation(s)
- Naomi C. Paxton
- Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology (QUT) 60 Musk Ave Kelvin Grove QLD 4059 Australia
| | - Jiongyu Ren
- Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology (QUT) 60 Musk Ave Kelvin Grove QLD 4059 Australia
| | - Madison J. Ainsworth
- Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology (QUT) 60 Musk Ave Kelvin Grove QLD 4059 Australia
| | - Anu K. Solanki
- Department of MaterialsDepartment of Bioengineering and Institute of Biomedical EngineeringImperial College London London SW7 2BP UK
| | - Julian R. Jones
- Department of MaterialsImperial College London London SW7 2BP UK
| | - Mark C. Allenby
- Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology (QUT) 60 Musk Ave Kelvin Grove QLD 4059 Australia
| | - Molly M. Stevens
- Department of MaterialsDepartment of Bioengineering and Institute of Biomedical EngineeringImperial College London London SW7 2BP UK
| | - Maria A. Woodruff
- Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology (QUT) 60 Musk Ave Kelvin Grove QLD 4059 Australia
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Brückner T, Fuchs A, Wistlich L, Hoess A, Nies B, Gbureck U. Prefabricated and Self-Setting Cement Laminates. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E834. [PMID: 30871007 PMCID: PMC6427253 DOI: 10.3390/ma12050834] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 02/19/2019] [Accepted: 03/08/2019] [Indexed: 11/30/2022]
Abstract
Polycaprolactone (PCL) fiber mats with defined pore architecture were shown to provide sufficient support for a premixed calcium phosphate cement (CPC) paste to serve as a flat and flexible composite material for the potential application in 2-dimensional, curved cranial defects. Fiber mats were fabricated by either melt electrospinning writing (MEW) or solution electrospinning (SES) with a patterned collector. While MEW processed fiber mats led to a deterioration of the cement bending strength by approximately 50%, due to a low fiber volume content in conjunction with a weak fiber-matrix interface, fiber mats obtained by solution electrospinning resulted in a mechanical reinforcement of the cement matrix in terms of both bending strength and absorbed fracture energy. This was attributed to a higher fiber volume content and a large contact area between nanosized fibers and cement matrix. Hydrophilization of the PCL scaffolds prior to lamination further improved composite strength and preserved the comparably higher fracture energy of 1.5 to 2.0 mJ/mm². The laminate composite approach from this study was successful in demonstrating the limitations and design options of such novel composite materials. However, fiber-cement compatibility remains an issue to be addressed, since a high degree of hydrophilicity does not necessarily provoke a stronger interface.
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Affiliation(s)
- Theresa Brückner
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Andreas Fuchs
- Department of Oral & Maxillofacial Plastic Surgery, University Hospital Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Laura Wistlich
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
| | - Andreas Hoess
- INNOTERE GmbH, Meissner Strasse 191, 01445 Radebeul, Germany.
| | - Berthold Nies
- INNOTERE GmbH, Meissner Strasse 191, 01445 Radebeul, Germany.
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and Dentistry, University Hospital Würzburg, Pleicherwall 2, 97070 Würzburg, Germany.
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Wunner FM, Mieszczanek P, Bas O, Eggert S, Maartens J, Dalton PD, De-Juan-Pardo EM, Hutmacher DW. Printomics: the high-throughput analysis of printing parameters applied to melt electrowriting. Biofabrication 2019; 11:025004. [DOI: 10.1088/1758-5090/aafc41] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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