51
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Wu Z, Jin K, Wang L, Fan Y. A Review: Optimization for Poly(glycerol sebacate) and Fabrication Techniques for Its Centered Scaffolds. Macromol Biosci 2021; 21:e2100022. [PMID: 34117837 DOI: 10.1002/mabi.202100022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/26/2021] [Indexed: 12/29/2022]
Abstract
Poly(glycerol sebacate) (PGS), an emerging promising thermosetting polymer synthesized from sebacic acid and glycerol, has attracted considerable attention due to its elasticity, biocompatibility, and tunable biodegradation properties. But it also has some drawbacks such as harsh synthesis conditions, rapid degradation rates, and low stiffness. To overcome these challenges and optimize PGS performance, various modification methods and fabrication techniques for PGS-based scaffolds have been developed in recent years. Outlining the current modification approaches of PGS and summarizing the fabrication techniques for PGS-based scaffolds are of great importance to accelerate the development of new materials and enable them to be appropriately used in potential applications. Thus, this review comprehensively overviews PGS derivatives, PGS composites, PGS blends, processing for PGS-based scaffolds, and their related applications. It is envisioned that this review could instruct and inspire the design of the PGS-based materials and facilitate tissue engineering advances into clinical practice.
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Affiliation(s)
- Zebin Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Kaixiang Jin
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Lizhen Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,School of Medical Science and Engineering, Beihang University, Beijing, 100083, China
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52
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Caprioli M, Roppolo I, Chiappone A, Larush L, Pirri CF, Magdassi S. 3D-printed self-healing hydrogels via Digital Light Processing. Nat Commun 2021; 12:2462. [PMID: 33911075 PMCID: PMC8080574 DOI: 10.1038/s41467-021-22802-z] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 03/25/2021] [Indexed: 01/17/2023] Open
Abstract
Self-healing hydrogels may mimic the behavior of living tissues, which can autonomously repair minor damages, and therefore have a high potential for application in biomedicine. So far, such hydrogels have been processed only via extrusion-based additive manufacturing technology, limited in freedom of design and resolution. Herein, we present 3D-printed hydrogel with self-healing ability, fabricated using only commercially available materials and a commercial Digital Light Processing printer. These hydrogels are based on a semi-interpenetrated polymeric network, enabling self-repair of the printed objects. The autonomous restoration occurs rapidly, at room temperature, and without any external trigger. After rejoining, the samples can withstand deformation and recovered 72% of their initial strength after 12 hours. The proposed approach enables 3D printing of self-healing hydrogels objects with complex architecture, paving the way for future applications in diverse fields, ranging from soft robotics to energy storage.
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Affiliation(s)
- Matteo Caprioli
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram, Jerusalem, Israel
| | - Ignazio Roppolo
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy.
| | - Annalisa Chiappone
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
| | - Liraz Larush
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram, Jerusalem, Israel
| | - Candido Fabrizio Pirri
- Department of Applied Science and Technology, Politecnico di Torino, Turin, Italy
- Istituto Italiano di Tecnologia, Center for Sustainable Future Technologies, Turin, Italy
| | - Shlomo Magdassi
- Casali Center for Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Edmond J. Safra Campus - Givat Ram, Jerusalem, Israel.
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Chiulan I, Heggset EB, Voicu ŞI, Chinga-Carrasco G. Photopolymerization of Bio-Based Polymers in a Biomedical Engineering Perspective. Biomacromolecules 2021; 22:1795-1814. [PMID: 33819022 DOI: 10.1021/acs.biomac.0c01745] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Photopolymerization is an effective method to covalently cross-link polymer chains that can be shaped into several biomedical products and devices. Additionally, polymerization reaction may induce a fluid-solid phase transformation under physiological conditions and is ideal for in vivo cross-linking of injectable polymers. The photoinitiator is a key ingredient able to absorb the energy at a specific light wavelength and create radicals that convert the liquid monomer solution into polymers. The combination of photopolymerizable polymers, containing appropriate photoinitiators, and effective curing based on dedicated light sources offers the possibility to implement photopolymerization technology in 3D bioprinting systems. Hence, cell-laden structures with high cell viability and proliferation, high accuracy in production, and good control of scaffold geometry can be biofabricated. In this review, we provide an overview of photopolymerization technology, focusing our efforts on natural polymers, the chemistry involved, and their combination with appropriate photoinitiators to be used within 3D bioprinting and manufacturing of biomedical devices. The reviewed articles showed the impact of different factors that influence the success of the photopolymerization process and the final properties of the cross-linked materials.
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Affiliation(s)
- Ioana Chiulan
- Polymer Department, The National Institute for Research & Development in Chemistry and Petrochemistry - ICECHIM, 202 Spl. Independentei, Bucharest 060021, Romania.,Advanced Polymer Materials Group, University Politehnica of Bucharest, Bucharest, 011061, Romania
| | | | - Ştefan Ioan Voicu
- Advanced Polymer Materials Group, University Politehnica of Bucharest, Bucharest, 011061, Romania
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54
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Ji S, Guvendiren M. Complex 3D bioprinting methods. APL Bioeng 2021; 5:011508. [PMID: 33728391 PMCID: PMC7954578 DOI: 10.1063/5.0034901] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 02/08/2021] [Indexed: 12/19/2022] Open
Abstract
3D bioprinting technology is evolving in complexity to enable human-scale, high-resolution, and multi-cellular constructs to better mimic the native tissue microenvironment. The ultimate goal is to achieve necessary complexity in the bioprinting process to biomanufacture fully-functional tissues and organs to address organ shortage and lack of patient-specific disease models. In this Review, we presented an in-depth overview of complex 3D bioprinting approaches including evolution of complex bioprinting, from simple gel-casting approach to multi-material bioprinting to omnidirectional bioprinting approaches, and emerging bioprinting approaches, including 4D bioprinting and in situ bioprinting technologies.
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Affiliation(s)
- Shen Ji
- Otto H. York Chemical and Materials Engineering, New Jersey Institute of Technology, 161 Warren Street, 150 Tiernan Hall, Newark, New Jersey 07102, USA
| | - Murat Guvendiren
- Author to whom correspondence should be addressed:. Phone: 973-596-2932. Fax: 973-596-8436
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55
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Yee DW, Greer JR. Three‐dimensional
chemical reactors:
in situ
materials synthesis to advance vat photopolymerization. POLYM INT 2021. [DOI: 10.1002/pi.6165] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daryl W. Yee
- Division of Engineering and Applied Science California Institute of Technology Pasadena CA USA
| | - Julia R. Greer
- Division of Engineering and Applied Science California Institute of Technology Pasadena CA USA
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Kovylin RS, Aleynik DY, Fedushkin IL. Modern Porous Polymer Implants: Synthesis, Properties, and Application. POLYMER SCIENCE SERIES C 2021. [DOI: 10.1134/s1811238221010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
The needs of modern surgery triggered the intensive development of transplantology, medical materials science, and tissue engineering. These directions require the use of innovative materials, among which porous polymers occupy one of the leading positions. The use of natural and synthetic polymers makes it possible to adjust the structure and combination of properties of a material to its particular application. This review generalizes and systematizes the results of recent studies describing requirements imposed on the structure and properties of synthetic (or artificial) porous polymer materials and implants on their basis and the advantages and limitations of synthesis methods. The most extensively employed, promising initial materials are considered, and the possible areas of application of polymer implants based on these materials are highlighted.
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57
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Kim Y, Lee EJ, Davydov AV, Frukhbeyen S, Seppala JE, Takagi S, Chow L, Alimperti S. Biofabrication of 3D printed hydroxyapatite composite scaffolds for bone regeneration. Biomed Mater 2020; 16. [PMID: 33254152 DOI: 10.1088/1748-605x/abcf03] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 11/30/2020] [Indexed: 11/12/2022]
Abstract
Biofabrication has been adapted in engineering patient-specific biosynthetic grafts for bone regeneration. Herein, we developed a 3D high-resolution, room-temperature printing approach to fabricate osteoconductive scaffolds using calcium phosphate cement (CPC). The non-aqueous CPC bioinks were composed of tetracalcium phosphate (TTCP), dicalcium phosphate anhydrous (DCPA), and Polyvinyl butyral (PVB) dissolved in either ethanol (EtOH) or Tetrahydrofuran (THF). They were printed in an aqueous sodium phosphate bath, which performs as a hardening accelerator for hydroxyapatite (HA) formation and as a retainer for 3D microstructure. The PVB solvents, EtOH or THF, affected differently the slurry rheological properties, scaffold microstructure, mechanical properties, and osteoconductivity. Our proposed approach overcomes limitations of conventional fabrication methods, which require high-temperature (> 50 oC), low-resolution (> 400 μm) printing with an inadequate amount of large ceramic particles (> 35 μm). This proof-of-concept study opens venues in engineering high-resolution, implantable, and osteoconductive scaffolds with predetermined properties for bone regeneration.
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Affiliation(s)
- Yoontae Kim
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Eun-Jin Lee
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Albert V Davydov
- Metallurgy Division, National Institute of Standards and Technology, National Institute of Standards and Technology, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Stanislav Frukhbeyen
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Jonathan E Seppala
- Materials Science and Engineering Division, National Institute of Standards and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, UNITED STATES
| | - Shozo Takagi
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Laurence Chow
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
| | - Stella Alimperti
- American Dental Association Science and Research Institute, American Dental Association Science and Research Institute, Gaithersburg, Maryland, MD 20899, UNITED STATES
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58
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Wasyłeczko M, Sikorska W, Chwojnowski A. Review of Synthetic and Hybrid Scaffolds in Cartilage Tissue Engineering. MEMBRANES 2020; 10:E348. [PMID: 33212901 PMCID: PMC7698415 DOI: 10.3390/membranes10110348] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/09/2020] [Accepted: 11/11/2020] [Indexed: 02/06/2023]
Abstract
Cartilage tissue is under extensive investigation in tissue engineering and regenerative medicine studies because of its limited regenerative potential. Currently, many scaffolds are undergoing scientific and clinical research. A key for appropriate scaffolding is the assurance of a temporary cellular environment that allows the cells to function as in native tissue. These scaffolds should meet the relevant requirements, including appropriate architecture and physicochemical and biological properties. This is necessary for proper cell growth, which is associated with the adequate regeneration of cartilage. This paper presents a review of the development of scaffolds from synthetic polymers and hybrid materials employed for the engineering of cartilage tissue and regenerative medicine. Initially, general information on articular cartilage and an overview of the clinical strategies for the treatment of cartilage defects are presented. Then, the requirements for scaffolds in regenerative medicine, materials intended for membranes, and methods for obtaining them are briefly described. We also describe the hybrid materials that combine the advantages of both synthetic and natural polymers, which provide better properties for the scaffold. The last part of the article is focused on scaffolds in cartilage tissue engineering that have been confirmed by undergoing preclinical and clinical tests.
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Affiliation(s)
- Monika Wasyłeczko
- Nałęcz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Trojdena 4 str., 02-109 Warsaw, Poland; (W.S.); (A.C.)
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59
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Lopez de Armentia S, del Real JC, Paz E, Dunne N. Advances in Biodegradable 3D Printed Scaffolds with Carbon-Based Nanomaterials for Bone Regeneration. MATERIALS 2020; 13:ma13225083. [PMID: 33187218 PMCID: PMC7697295 DOI: 10.3390/ma13225083] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 11/05/2020] [Accepted: 11/09/2020] [Indexed: 01/09/2023]
Abstract
Bone possesses an inherent capacity to fix itself. However, when a defect larger than a critical size appears, external solutions must be applied. Traditionally, an autograft has been the most used solution in these situations. However, it presents some issues such as donor-site morbidity. In this context, porous biodegradable scaffolds have emerged as an interesting solution. They act as external support for cell growth and degrade when the defect is repaired. For an adequate performance, these scaffolds must meet specific requirements: biocompatibility, interconnected porosity, mechanical properties and biodegradability. To obtain the required porosity, many methods have conventionally been used (e.g., electrospinning, freeze-drying and salt-leaching). However, from the development of additive manufacturing methods a promising solution for this application has been proposed since such methods allow the complete customisation and control of scaffold geometry and porosity. Furthermore, carbon-based nanomaterials present the potential to impart osteoconductivity and antimicrobial properties and reinforce the matrix from a mechanical perspective. These properties make them ideal for use as nanomaterials to improve the properties and performance of scaffolds for bone tissue engineering. This work explores the potential research opportunities and challenges of 3D printed biodegradable composite-based scaffolds containing carbon-based nanomaterials for bone tissue engineering applications.
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Affiliation(s)
- Sara Lopez de Armentia
- Institute for Research in Technology/Mechanical Engineering Dept., Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain; (S.L.d.A.); (J.C.d.R.)
| | - Juan Carlos del Real
- Institute for Research in Technology/Mechanical Engineering Dept., Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain; (S.L.d.A.); (J.C.d.R.)
| | - Eva Paz
- Institute for Research in Technology/Mechanical Engineering Dept., Universidad Pontificia Comillas, Alberto Aguilera 25, 28015 Madrid, Spain; (S.L.d.A.); (J.C.d.R.)
- Correspondence: (E.P.); (N.D.)
| | - Nicholas Dunne
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland
- School of Pharmacy, Queen’s University of Belfast, 97 Lisburn Road, Belfast BT9 7BL, UK
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Glasnevin, Dublin 9, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland
- Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
- Correspondence: (E.P.); (N.D.)
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60
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Abstract
Microvasculature functions at the tissue and cell level, regulating local mass exchange of oxygen and nutrient-rich blood. While there has been considerable success in the biofabrication of large- and small-vessel replacements, functional microvasculature has been particularly challenging to engineer due to its size and complexity. Recently, three-dimensional bioprinting has expanded the possibilities of fabricating sophisticated microvascular systems by enabling precise spatiotemporal placement of cells and biomaterials based on computer-aided design. However, there are still significant challenges facing the development of printable biomaterials that promote robust formation and controlled 3D organization of microvascular networks. This review provides a thorough examination and critical evaluation of contemporary biomaterials and their specific roles in bioprinting microvasculature. We first provide an overview of bioprinting methods and techniques that enable the fabrication of microvessels. We then offer an in-depth critical analysis on the use of hydrogel bioinks for printing microvascularized constructs within the framework of current bioprinting modalities. We end with a review of recent applications of bioprinted microvasculature for disease modeling, drug testing, and tissue engineering, and conclude with an outlook on the challenges facing the evolution of biomaterials design for bioprinting microvasculature with physiological complexity.
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Affiliation(s)
- Ryan W. Barrs
- Bioengineering Department, Clemson University, Clemson, SC 29634, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Jia Jia
- Bioengineering Department, Clemson University, Clemson, SC 29634, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Sophia E. Silver
- Bioengineering Department, Clemson University, Clemson, SC 29634, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Michael Yost
- Department of Surgery, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Ying Mei
- Bioengineering Department, Clemson University, Clemson, SC 29634, USA
- Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC 29425, USA
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61
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Bogdan E, Michorczyk P. 3D Printing in Heterogeneous Catalysis-The State of the Art. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4534. [PMID: 33066083 PMCID: PMC7601972 DOI: 10.3390/ma13204534] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 12/17/2022]
Abstract
This paper describes the process of additive manufacturing and a selection of three-dimensional (3D) printing methods which have applications in chemical synthesis, specifically for the production of monolithic catalysts. A review was conducted on reference literature for 3D printing applications in the field of catalysis. It was proven that 3D printing is a promising production method for catalysts.
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Affiliation(s)
- Elżbieta Bogdan
- Institute of Organic Chemistry and Technology, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland;
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62
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A GelMA-PEGDA-nHA Composite Hydrogel for Bone Tissue Engineering. MATERIALS 2020; 13:ma13173735. [PMID: 32847000 PMCID: PMC7503446 DOI: 10.3390/ma13173735] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/09/2020] [Accepted: 08/18/2020] [Indexed: 12/25/2022]
Abstract
A new gelatin methacrylamine (GelMA)-poly (ethylene glycol) diacrylate (PEGDA)-nano hydroxyapatite (nHA) composite hydrogel scaffold was developed using UV photo-crosslinking technology. The Ca2+ from nHA can form a [HO]Ca2+ [OH] bridging structure with the hydroxyl group in GelMA, thereby enhancing the stability. Compared with GelMA-PEGDA hydrogel, the addition of nHA can control the mechanical properties of the composite hydrogel and reduce the degradation rate. In vitro cell culture showed that osteoblast can adhere and proliferate on the surface of the hydrogel, indicating that the GelMA-PEGDA-nHA hydrogel had good cell viability and biocompatibility. Furthermore, GelMA-PEGDA-nHA has excellent injectability and rapid prototyping properties and is a promising 3D printed bone repair scaffold material.
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63
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Yang J, An X, Liu L, Tang S, Cao H, Xu Q, Liu H. Cellulose, hemicellulose, lignin, and their derivatives as multi-components of bio-based feedstocks for 3D printing. Carbohydr Polym 2020; 250:116881. [PMID: 33049824 DOI: 10.1016/j.carbpol.2020.116881] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 01/01/2023]
Abstract
Three-dimensional (3D) printing, known as revolutionary and disruptive innovation in manufacturing technology, supports great opportunities to rapidly construct a wide range of tailored object geometries. Cellulose, hemicellulose, and lignin as the three most common natural polymers and main components of plant resources, possess great economical potential for bio-based products due to their attractive advantages. The integration of 3D printing technology involved with cellulose, hemicellulose and lignin as the major bio-based feedstock for high-performance 3D printed products has received great concern in the R&D areas. In this review, the aim is to shed light on a cutting-edge review on the most recent progress based on cellulose, hemicellulose and lignin, as well as their derivatives as multi-components of bio-feedstock for 3D printing, in which the applications, roles and functions of the plant-derived biomass for 3D printing are also highlighted. The challenges and perspectives for future work are provided, to underscore critical issues and opportunities.
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Affiliation(s)
- Jian Yang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China
| | - Xingye An
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China; Limerick Pulp and Paper Centre, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canada.
| | - Liqin Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China
| | - Shiyu Tang
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China
| | - Haibing Cao
- Zhejiang Jing Xing Paper Joint Stock Co., Ltd., No. 1, Jing Xing Industry Zone, Jing Xing First Road, Caoqiao Street, Pinghu, Zhejiang Province, 314214, PR China
| | - Qingliang Xu
- Zhejiang Jing Xing Paper Joint Stock Co., Ltd., No. 1, Jing Xing Industry Zone, Jing Xing First Road, Caoqiao Street, Pinghu, Zhejiang Province, 314214, PR China
| | - Hongbin Liu
- Tianjin Key Laboratory of Pulp and Paper, Tianjin University of Science and Technology, No. 29, 13th Street, TEDA, Tianjin, 300457, PR China.
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64
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Zhu H, Yang H, Ma Y, Lu TJ, Xu F, Genin GM, Lin M. Spatiotemporally Controlled Photoresponsive Hydrogels: Design and Predictive Modeling from Processing through Application. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2000639. [PMID: 32802013 PMCID: PMC7418561 DOI: 10.1002/adfm.202000639] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/16/2020] [Indexed: 05/16/2023]
Abstract
Photoresponsive hydrogels (PRHs) are soft materials whose mechanical and chemical properties can be tuned spatially and temporally with relative ease. Both photo-crosslinkable and photodegradable hydrogels find utility in a range of biomedical applications that require tissue-like properties or programmable responses. Progress in engineering with PRHs is facilitated by the development of theoretical tools that enable optimization of their photochemistry, polymer matrices, nanofillers, and architecture. This review brings together models and design principles that enable key applications of PRHs in tissue engineering, drug delivery, and soft robotics, and highlights ongoing challenges in both modeling and application.
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Affiliation(s)
- Hongyuan Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong UniversityXi'an710049P. R. China
- Bioinspired Engineering & Biomechanics Center (BEBC)Xi'an Jiaotong UniversityXi'an710049P. R. China
| | - Haiqian Yang
- Bioinspired Engineering & Biomechanics Center (BEBC)Xi'an Jiaotong UniversityXi'an710049P. R. China
| | - Yufei Ma
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong UniversityXi'an710049P. R. China
- Bioinspired Engineering & Biomechanics Center (BEBC)Xi'an Jiaotong UniversityXi'an710049P. R. China
| | - Tian Jian Lu
- State Key Laboratory of Mechanics and Control of Mechanical StructuresNanjing University of Aeronautics and AstronauticsNanjing210016P. R. China
- MOE Key Laboratory for Multifunctional Materials and StructuresXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Feng Xu
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong UniversityXi'an710049P. R. China
- Bioinspired Engineering & Biomechanics Center (BEBC)Xi'an Jiaotong UniversityXi'an710049P. R. China
| | - Guy M. Genin
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong UniversityXi'an710049P. R. China
- Bioinspired Engineering & Biomechanics Center (BEBC)Xi'an Jiaotong UniversityXi'an710049P. R. China
- Department of Mechanical Engineering & Materials ScienceWashington University in St. LouisSt. LouisMO63130USA
- NSF Science and Technology Center for Engineering MechanobiologyWashington University in St. LouisSt. LouisMO63130USA
| | - Min Lin
- The Key Laboratory of Biomedical Information Engineering of Ministry of EducationSchool of Life Science and TechnologyXi'an Jiaotong UniversityXi'an710049P. R. China
- Bioinspired Engineering & Biomechanics Center (BEBC)Xi'an Jiaotong UniversityXi'an710049P. R. China
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65
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Li W, Mille LS, Robledo JA, Uribe T, Huerta V, Zhang YS. Recent Advances in Formulating and Processing Biomaterial Inks for Vat Polymerization-Based 3D Printing. Adv Healthc Mater 2020; 9:e2000156. [PMID: 32529775 PMCID: PMC7473482 DOI: 10.1002/adhm.202000156] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 12/15/2022]
Abstract
3D printing and bioprinting have become a key component in precision medicine. They have been used toward the fabrication of medical devices with patient-specific shapes, production of engineered tissues for in vivo regeneration, and preparation of in vitro tissue models used for screening therapeutics. In particular, vat polymerization-based 3D (bio)printing as a unique strategy enables more sophisticated architectures to be rapidly built. This progress report aims to emphasize the recent advances made in vat polymerization-based 3D printing and bioprinting, including new biomaterial ink formulations and novel vat polymerization system designs. While some of these approaches have not been utilized toward the combination with biomaterial inks, it is anticipated their rapid translation into biomedical applications.
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Affiliation(s)
- Wanlu Li
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Luis S Mille
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Juan A Robledo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Tlalli Uribe
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Valentin Huerta
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
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66
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Lee M, Rizzo R, Surman F, Zenobi-Wong M. Guiding Lights: Tissue Bioprinting Using Photoactivated Materials. Chem Rev 2020; 120:10950-11027. [DOI: 10.1021/acs.chemrev.0c00077] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mihyun Lee
- Tissue Engineering + Biofabrication HPL J22, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Riccardo Rizzo
- Tissue Engineering + Biofabrication HPL J22, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - František Surman
- Tissue Engineering + Biofabrication HPL J22, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
| | - Marcy Zenobi-Wong
- Tissue Engineering + Biofabrication HPL J22, ETH Zürich, Otto-Stern-Weg 7, 8093 Zürich, Switzerland
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67
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Synthesis and Formulation of PCL-Based Urethane Acrylates for DLP 3D Printers. Polymers (Basel) 2020; 12:polym12071500. [PMID: 32635639 PMCID: PMC7407232 DOI: 10.3390/polym12071500] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 11/24/2022] Open
Abstract
In this study, three PCL-based polyurethane acrylates were synthesized and further formulated into twelve resins for digital light processing (DLP) 3D printing. Three PCL diols with different molecular weights were synthesized via ring-opening reaction of ε-caprolactone on diethylene glycol, with the catalyst stannous octoate. Isophorone diisocyanate (IPDI) was reacted with 2-hydroxyethyl acrylate (2-HEA) and the PCL diols form PCL-based polyurethane acrylates. Twelve resins composed of different percentages of PCL-based polyurethane acrylates, poly (ethylene glycol) diacrylate (PEGDA), propylene glycol (PPG) and photo-initiator were further printed from a DLP 3D printer. The viscosities of twelve resins decreased by 10 times and became printable after adding 30% of PEGDA. The degree of conversion for the twelve resins can reach more than 80% after the post-curing process. By changing the amount of PEGDA and PPG, the mechanical properties of the twelve resins could be adjusted. PUA530-PEG-PPG (70:30:0), PUA800-PEG-PPG (70:30:0), and PUA1000-PEG-PPG (70:30:0) were successfully printed into customized tissue scaffolds. Twelve PCL-based polyurethane photo-curable resins with tunable mechanical properties, cytotoxicity, and degradability were successfully prepared. With the DLP 3D printing technique, a complex structure could be achieved. These resins have great potential for customized tissue engineering and other biomedical application.
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68
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Foli G, Degli Esposti M, Morselli D, Fabbri P. Two-Step Solvent-Free Synthesis of Poly(hydroxybutyrate)-Based Photocurable Resin with Potential Application in Stereolithography. Macromol Rapid Commun 2020; 41:e1900660. [PMID: 32363755 DOI: 10.1002/marc.201900660] [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: 12/20/2019] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 01/21/2023]
Abstract
A bio-based polymeric ink for stereolithography developed through a two-step solvent-free process is herein proposed. Specifically, low-molecular-weight poly(hydroxybutyrate) (PHB)-diol oligomers are prepared via molten transesterification of bacterial PHB with 1,4-butanediol. Transesterification conditions such as diol concentration, catalyst amount, and reaction time are studied for optimizing the final oligomers' molecular weight and structural features. In the second step, the oligomeric hydroxyl terminals are converted into methacrylate moieties through a solvent-free end-capping reaction and diluted in propylene carbonate in order to obtain a photo-polymerizable ink with suitable viscosity. The ink is UV-cured, and the obtained material properties are investigated by FT-IR and differential scanning calorimetry measurements. The proposed method provides a valuable and environmentally friendly alternative to currently available synthetic routes, overcoming their typical disadvantages related to the used solvents and harsh conditions. Moreover, it opens up a sustainable route for converting polyesters into functionalized oligomeric derivatives, which can potentially find application in 3D printing of customized biomedical devices.
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Affiliation(s)
- Giacomo Foli
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Università di Bologna, Via Terracini 28, Bologna, 40131, Italy
| | - Micaela Degli Esposti
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Università di Bologna, Via Terracini 28, Bologna, 40131, Italy.,Italian Consortium for Science and Technology of Materials (INSTM), Via Giusti 9, Firenze, 50121, Italy
| | - Davide Morselli
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Università di Bologna, Via Terracini 28, Bologna, 40131, Italy.,Italian Consortium for Science and Technology of Materials (INSTM), Via Giusti 9, Firenze, 50121, Italy
| | - Paola Fabbri
- Department of Civil, Chemical, Environmental and Materials Engineering (DICAM), Università di Bologna, Via Terracini 28, Bologna, 40131, Italy.,Italian Consortium for Science and Technology of Materials (INSTM), Via Giusti 9, Firenze, 50121, Italy
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69
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Wilts EM, Gula A, Davis C, Chartrain N, Williams CB, Long TE. Vat photopolymerization of liquid, biodegradable PLGA-based oligomers as tissue scaffolds. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109693] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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70
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Lim KS, Galarraga JH, Cui X, Lindberg GCJ, Burdick JA, Woodfield TBF. Fundamentals and Applications of Photo-Cross-Linking in Bioprinting. Chem Rev 2020; 120:10662-10694. [DOI: 10.1021/acs.chemrev.9b00812] [Citation(s) in RCA: 125] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Khoon S. Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
| | - Jonathan H. Galarraga
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Xiaolin Cui
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
| | - Gabriella C. J. Lindberg
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
| | - Jason A. Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Tim B. F. Woodfield
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, Centre for Bioengineering & Nanomedicine, University of Otago, Christchurch 8011, New Zealand
- Medical Technologies Centre of Research Excellence (MedTech CoRE), Auckland 1010, New Zealand
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71
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Mora-Boza A, Włodarczyk-Biegun MK, Del Campo A, Vázquez-Lasa B, Román JS. Glycerylphytate as an ionic crosslinker for 3D printing of multi-layered scaffolds with improved shape fidelity and biological features. Biomater Sci 2020; 8:506-516. [PMID: 31764919 DOI: 10.1039/c9bm01271k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The fabrication of intricate and long-term stable 3D polymeric scaffolds by a 3D printing technique is still a challenge. In the biomedical field, hydrogel materials are very frequently used because of their excellent biocompatibility and biodegradability, however the improvement of their processability and mechanical properties is still required. This paper reports the fabrication of dual crosslinked 3D scaffolds using a low concentrated (<10 wt%) ink of gelatin methacryloyl (GelMA)/chitosan and a novel crosslinking agent, glycerylphytate (G1Phy) to overcome the current limitations in the 3D printing field using hydrogels. The applied methodology consisted of a first ultraviolet light (UV) photopolymerization followed by a post-printing ionic crosslinking treatment with G1Phy. This crosslinker provides a robust framework and avoids the necessity of neutralization with strong bases. The blend ink showed shear-thinning behavior and excellent printability in the form of a straight and homogeneous filament. UV curing was undertaken simultaneously to 3D deposition, which enhanced precision and shape fidelity (resolution ≈150 μm), and prevented the collapse of the subsequent printed layers (up to 28 layers). In the second step, the novel G1Phy ionic crosslinker agent provided swelling and long term stability properties to the 3D scaffolds. The multi-layered printed scaffolds were mechanically stable under physiological conditions for at least one month. Preliminary in vitro assays using L929 fibroblasts showed very promising results in terms of adhesion, spreading, and proliferation in comparison to other phosphate-based traditional crosslinkers (i.e. TPP). We envision that the proposed combination of the blend ink and 3D printing approach can have widespread applications in the regeneration of soft tissues.
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Affiliation(s)
- Ana Mora-Boza
- Institute of Polymer Science and Technology, ICTP-CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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72
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Kuhnt T, Marroquín García R, Camarero-Espinosa S, Dias A, Ten Cate AT, van Blitterswijk CA, Moroni L, Baker MB. Poly(caprolactone-co-trimethylenecarbonate) urethane acrylate resins for digital light processing of bioresorbable tissue engineering implants. Biomater Sci 2020; 7:4984-4989. [PMID: 31667486 DOI: 10.1039/c9bm01042d] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
To exploit the usability of Digital Light Processing (DLP) in regenerative medicine, biodegradable, mechanically customizable and well-defined polyester urethane acrylate resins were synthesized based on poly(caprolactone-co-trimethlenecarbonate). By controlling the monomer ratio, the resultant fabricated constructs showed tunable mechanical properties, degradation and attached hMSC morphologies.
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Affiliation(s)
- Tobias Kuhnt
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands.
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73
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Werner M, Kurniawan NA, Bouten CVC. Cellular Geometry Sensing at Different Length Scales and its Implications for Scaffold Design. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E963. [PMID: 32098110 PMCID: PMC7078773 DOI: 10.3390/ma13040963] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 02/12/2020] [Accepted: 02/17/2020] [Indexed: 12/22/2022]
Abstract
Geometrical cues provided by the intrinsic architecture of tissues and implanted biomaterials have a high relevance in controlling cellular behavior. Knowledge of how cells sense and subsequently respond to complex geometrical cues of various sizes and origins is needed to understand the role of the architecture of the extracellular environment as a cell-instructive parameter. This is of particular interest in the field of tissue engineering, where the success of scaffold-guided tissue regeneration largely depends on the formation of new tissue in a native-like organization in order to ensure proper tissue function. A well-considered internal scaffold design (i.e., the inner architecture of the porous structure) can largely contribute to the desired cell and tissue organization. Advances in scaffold production techniques for tissue engineering purposes in the last years have provided the possibility to accurately create scaffolds with defined macroscale external and microscale internal architectures. Using the knowledge of how cells sense geometrical cues of different size ranges can drive the rational design of scaffolds that control cellular and tissue architecture. This concise review addresses the recently gained knowledge of the sensory mechanisms of cells towards geometrical cues of different sizes (from the nanometer to millimeter scale) and points out how this insight can contribute to informed architectural scaffold designs.
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Affiliation(s)
- Maike Werner
- Soft Tissue Engineering and Mechanobiology, Department of Biomedical Engineering, Eindhoven University of Technology, 5612 AP Eindhoven, The Netherlands; (M.W.); (C.V.C.B.)
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Nicholas A. Kurniawan
- Soft Tissue Engineering and Mechanobiology, Department of Biomedical Engineering, Eindhoven University of Technology, 5612 AP Eindhoven, The Netherlands; (M.W.); (C.V.C.B.)
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | - Carlijn V. C. Bouten
- Soft Tissue Engineering and Mechanobiology, Department of Biomedical Engineering, Eindhoven University of Technology, 5612 AP Eindhoven, The Netherlands; (M.W.); (C.V.C.B.)
- Institute for Complex Molecular Systems (ICMS), Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
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74
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Ivashchenko O, Peplińska B, Przysiecka Ł, Coy E, Jarek M, Chybczyńska K, Jurga S. Nanocomposite Gel as Injectable Therapeutic Scaffold: Microstructural Aspects and Bioactive Properties. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7840-7853. [PMID: 31977186 DOI: 10.1021/acsami.9b23529] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The development of tissue scaffolds able to provide proper and accelerated regeneration of tissue is a main task of tissue engineering. We developed a nanocomposite gel that may be used as an injectable therapeutic scaffold. The nanocomposite gel is based on biocompatible gelling agents with embedded nanoparticles (iron oxide, silver, and hydroxyapatite) providing therapeutic properties. We have investigated the microstructure of the nanocomposite gel exposed to different substrates (porous materials and biological tissue). Here we show that the nanocomposite gel has the ability to self-reassemble mimicking the substrate morphology: exposition on porous mineral substrate caused reassembling of nanocomposite gel into 10× smaller scale structure; exposition to a section of humerus cortical bone decreased the microstructure scale more than twice (to ≤3 μm). The reassembling happens through a transitional layer which exists near the phase separation boundary. Our results impact the knowledge of gels explaining their abundance in biological organisms from the microstructural point of view. The results of our biological experiments showed that the nanocomposite gel may find diverse applications in the biomedical field.
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Affiliation(s)
- Olena Ivashchenko
- NanoBioMedical Centre , Adam Mickiewicz University in Poznań , 61614 Poznań , Poland
| | - Barbara Peplińska
- NanoBioMedical Centre , Adam Mickiewicz University in Poznań , 61614 Poznań , Poland
| | - Łucja Przysiecka
- NanoBioMedical Centre , Adam Mickiewicz University in Poznań , 61614 Poznań , Poland
| | - Emerson Coy
- NanoBioMedical Centre , Adam Mickiewicz University in Poznań , 61614 Poznań , Poland
| | - Marcin Jarek
- NanoBioMedical Centre , Adam Mickiewicz University in Poznań , 61614 Poznań , Poland
| | | | - Stefan Jurga
- NanoBioMedical Centre , Adam Mickiewicz University in Poznań , 61614 Poznań , Poland
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75
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Placone JK, Mahadik B, Fisher JP. Addressing present pitfalls in 3D printing for tissue engineering to enhance future potential. APL Bioeng 2020; 4:010901. [PMID: 32072121 PMCID: PMC7010521 DOI: 10.1063/1.5127860] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 12/08/2019] [Indexed: 12/28/2022] Open
Abstract
Additive manufacturing in tissue engineering has significantly advanced in acceptance and use to address complex problems. However, there are still limitations to the technologies used and potential challenges that need to be addressed by the community. In this manuscript, we describe how the field can be advanced not only through the development of new materials and techniques but also through the standardization of characterization, which in turn may impact the translation potential of the field as it matures. Furthermore, we discuss how education and outreach could be modified to ensure end-users have a better grasp on the benefits and limitations of 3D printing to aid in their career development.
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76
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Ramos T, Moroni L. Tissue Engineering and Regenerative Medicine 2019: The Role of Biofabrication-A Year in Review. Tissue Eng Part C Methods 2020; 26:91-106. [PMID: 31856696 DOI: 10.1089/ten.tec.2019.0344] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Despite its relative youth, biofabrication is unceasingly expanding by assimilating the contributions from various disciplinary areas and their technological advances. Those developments have spawned the range of available options to produce structures with complex geometries while accurately manipulating and controlling cell behavior. As it evolves, biofabrication impacts other research fields, allowing the fabrication of tissue models of increased complexity that more closely resemble the dynamics of living tissue. The recent blooming and evolutions in biofabrication have opened new windows and perspectives that could aid the translational struggle in tissue engineering and regenerative medicine (TERM) applications. Based on similar methodologies applied in past years' reviews, we identified the most high-impact publications and reviewed the major concepts, findings, and research outcomes in the context of advancement beyond the state-of-the-art in the field. We first aim to clarify the confusion in terminology and concepts in biofabrication to therefore introduce the striking evolutions in three-dimensional and four-dimensional bioprinting of tissues. We conclude with a short discussion on the future outlooks for innovation that biofabrication could bring to TERM research.
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Affiliation(s)
- Tiago Ramos
- Institute of Ophthalmology, University College of London, London, United Kingdom
| | - Lorenzo Moroni
- Complex Tissue Regeneration Department, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, the Netherlands
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77
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Hola E, Pilch M, Galek M, Ortyl J. New versatile bimolecular photoinitiating systems based on amino-m-terphenyl derivatives for cationic, free-radical and thiol–ene photopolymerization under low intensity UV-A and visible light sources. Polym Chem 2020. [DOI: 10.1039/c9py01091b] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The performance of a series of 2-amino-4,6-diphenyl-benzene-1,3-dicarbonitrile derivatives as visible light sensitizers for diphenyliodonium salt for enabling photopolymerization at different irradiation wavelengths was studied.
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Affiliation(s)
- Emilia Hola
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Cracow
- Poland
| | - Maciej Pilch
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Cracow
- Poland
| | | | - Joanna Ortyl
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Cracow
- Poland
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78
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Li YH, Chen YC. Triphenylamine-hexaarylbiimidazole derivatives as hydrogen-acceptor photoinitiators for free radical photopolymerization under UV and LED light. Polym Chem 2020. [DOI: 10.1039/c9py01605h] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
In this study, three triphenylamine-based hexaarylbiimidazole (HABI) derivatives featuring different numbers of methoxy groups (none for HABI1, two for HABI2, and four for HABI3) have been synthesized.
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Affiliation(s)
- Yan-Heng Li
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Science and Technology
- Kaohsiung 80778
- Republic of China
| | - Yung-Chung Chen
- Department of Chemical and Materials Engineering
- National Kaohsiung University of Science and Technology
- Kaohsiung 80778
- Republic of China
- Photo-sensitive Material Advanced Research and Technology Center (Photo-SMART)
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79
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A compact LED-based projection microstereolithography for producing 3D microstructures. Sci Rep 2019; 9:19692. [PMID: 31873101 PMCID: PMC6928235 DOI: 10.1038/s41598-019-56044-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 12/02/2019] [Indexed: 11/13/2022] Open
Abstract
Projection microstereolithography (PµSL) is a promising additive manufacturing technique due to its low cost, accuracy, speed, and also the diversity of the materials that it can use. Recently it has shown great potentials in various applications such as microfluidics, tissue engineering, micro-optics, biomedical microdevices, and so on. However, studies on PµSL are still ongoing in terms of the quality and accuracy of the construction process, which particularly affect the fabrication of complex 3D microstructures and make it attractive enough to be considered for commercial applications. In this paper, a compact LED-based PµSL 3D printer for the fabrication of 3D microstructures was developed, and the effective parameters that influence the quality of construction were thoroughly investigated and optimized. Accordingly, a customized optical system, including illumination optics and projection optics, was designed using optical engineering principles. This custom 3D printer was proposed for the PµSL process, which besides improving the quality of construction, led to the reduction of the size of the device, its cost-effectiveness, and the repeatability of its performance. To demonstrate the performance of the fabricated device, a variety of complex 3D microstructures such as porous, hollow, helical, and self-support microstructures were constructed. In addition, the repeatability of the device was assessed by fabricating microstructure arrays. The device performance showed that the lateral accuracy of printing was better than 5 μm, and the smallest thickness of the printed layer was 1 μm. Moreover, the maximum printable size of the device was 6.4 mm × 4 mm × 40 mm.
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80
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Fan D, Staufer U, Accardo A. Engineered 3D Polymer and Hydrogel Microenvironments for Cell Culture Applications. Bioengineering (Basel) 2019; 6:E113. [PMID: 31847117 PMCID: PMC6955903 DOI: 10.3390/bioengineering6040113] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/13/2019] [Accepted: 12/06/2019] [Indexed: 12/28/2022] Open
Abstract
The realization of biomimetic microenvironments for cell biology applications such as organ-on-chip, in vitro drug screening, and tissue engineering is one of the most fascinating research areas in the field of bioengineering. The continuous evolution of additive manufacturing techniques provides the tools to engineer these architectures at different scales. Moreover, it is now possible to tailor their biomechanical and topological properties while taking inspiration from the characteristics of the extracellular matrix, the three-dimensional scaffold in which cells proliferate, migrate, and differentiate. In such context, there is therefore a continuous quest for synthetic and nature-derived composite materials that must hold biocompatible, biodegradable, bioactive features and also be compatible with the envisioned fabrication strategy. The structure of the current review is intended to provide to both micro-engineers and cell biologists a comparative overview of the characteristics, advantages, and drawbacks of the major 3D printing techniques, the most promising biomaterials candidates, and the trade-offs that must be considered in order to replicate the properties of natural microenvironments.
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Affiliation(s)
| | | | - Angelo Accardo
- Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands; (D.F.); (U.S.)
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81
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Konasch J, Riess A, Mau R, Teske M, Rekowska N, Eickner T, Grabow N, Seitz H. A Novel Hybrid Additive Manufacturing Process for Drug Delivery Systems with Locally Incorporated Drug Depots. Pharmaceutics 2019; 11:E661. [PMID: 31817900 PMCID: PMC6956340 DOI: 10.3390/pharmaceutics11120661] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 01/08/2023] Open
Abstract
Here, we present a new hybrid additive manufacturing (AM) process to create drug delivery systems (DDSs) with selectively incorporated drug depots. The matrix of a DDS was generated by stereolithography (SLA), whereas the drug depots were loaded using inkjet printing. The novel AM process combining SLA with inkjet printing was successfully implemented in an existing SLA test setup. In the first studies, poly(ethylene glycol) diacrylate-based specimens with integrated depots were generated. As test liquids, blue and pink ink solutions were used. Furthermore, bovine serum albumin labeled with Coomassie blue dye as a model drug was successfully placed in a depot inside a DDS. The new hybrid AM process makes it possible to place several drugs independently of each other within the matrix. This allows adjustment of the release profiles of the drugs depending on the size as well as the position of the depots in the DDS.
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Affiliation(s)
- Jan Konasch
- Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany; (J.K.); (A.R.); (R.M.)
| | - Alexander Riess
- Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany; (J.K.); (A.R.); (R.M.)
| | - Robert Mau
- Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany; (J.K.); (A.R.); (R.M.)
| | - Michael Teske
- Institute for Biomedical Engineering, University Medical Center Rostock, Friedrich-Barnewitz-Straße 4, 18119 Rostock, Germany; (M.T.); (N.R.); (T.E.); (N.G.)
| | - Natalia Rekowska
- Institute for Biomedical Engineering, University Medical Center Rostock, Friedrich-Barnewitz-Straße 4, 18119 Rostock, Germany; (M.T.); (N.R.); (T.E.); (N.G.)
| | - Thomas Eickner
- Institute for Biomedical Engineering, University Medical Center Rostock, Friedrich-Barnewitz-Straße 4, 18119 Rostock, Germany; (M.T.); (N.R.); (T.E.); (N.G.)
| | - Niels Grabow
- Institute for Biomedical Engineering, University Medical Center Rostock, Friedrich-Barnewitz-Straße 4, 18119 Rostock, Germany; (M.T.); (N.R.); (T.E.); (N.G.)
- Department LL&M, Interdisciplinary Faculty, University of Rostock, Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany
| | - Hermann Seitz
- Microfluidics, Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany; (J.K.); (A.R.); (R.M.)
- Department LL&M, Interdisciplinary Faculty, University of Rostock, Rostock, Albert-Einstein-Str. 25, 18059 Rostock, Germany
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82
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Puppi D, Pecorini G, Chiellini F. Biomedical Processing of Polyhydroxyalkanoates. Bioengineering (Basel) 2019; 6:E108. [PMID: 31795345 PMCID: PMC6955737 DOI: 10.3390/bioengineering6040108] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 11/25/2019] [Accepted: 11/25/2019] [Indexed: 12/30/2022] Open
Abstract
The rapidly growing interest on polyhydroxyalkanoates (PHA) processing for biomedical purposes is justified by the unique combinations of characteristics of this class of polymers in terms of biocompatibility, biodegradability, processing properties, and mechanical behavior, as well as by their great potential for sustainable production. This article aims at overviewing the most exploited processing approaches employed in the biomedical area to fabricate devices and other medical products based on PHA for experimental and commercial applications. For this purpose, physical and processing properties of PHA are discussed in relationship to the requirements of conventionally-employed processing techniques (e.g., solvent casting and melt-spinning), as well as more advanced fabrication approaches (i.e., electrospinning and additive manufacturing). Key scientific investigations published in literature regarding different aspects involved in the processing of PHA homo- and copolymers, such as poly(3-hydroxybutyrate), poly(3-hydroxybutyrate-co-3-hydroxyvalerate), and poly(3-hydroxybutyrate-co-3-hydroxyhexanoate), are critically reviewed.
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Affiliation(s)
- Dario Puppi
- Department of Chemistry and Industrial Chemistry, University of Pisa, UdR INSTM – Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy;
| | | | - Federica Chiellini
- Department of Chemistry and Industrial Chemistry, University of Pisa, UdR INSTM – Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy;
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83
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Huang HJ, Tsai YL, Lin SH, Hsu SH. Smart polymers for cell therapy and precision medicine. J Biomed Sci 2019; 26:73. [PMID: 31623607 PMCID: PMC6798433 DOI: 10.1186/s12929-019-0571-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 10/01/2019] [Indexed: 12/28/2022] Open
Abstract
Soft materials have been developed very rapidly in the biomedical field over the past 10 years because of advances in medical devices, cell therapy, and 3D printing for precision medicine. Smart polymers are one category of soft materials that respond to environmental changes. One typical example is the thermally-responsive polymers, which are widely used as cell carriers and in 3D printing. Self-healing polymers are one type of smart polymers that have the capacity to recover the structure after repeated damages and are often injectable through needles. Shape memory polymers are another type with the ability to memorize their original shape. These smart polymers can be used as cell/drug/protein carriers. Their injectability and shape memory performance allow them to be applied in bioprinting, minimally invasive surgery, and precision medicine. This review will describe the general materials design, characterization, as well as the current progresses and challenges of these smart polymers.
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Affiliation(s)
- Hung-Jin Huang
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei, 10617, Taiwan, Republic of China
| | - Yu-Liang Tsai
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei, 10617, Taiwan, Republic of China
| | - Shih-Ho Lin
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei, 10617, Taiwan, Republic of China
| | - Shan-Hui Hsu
- Institute of Polymer Science and Engineering, National Taiwan University, No. 1, Sec. 4 Roosevelt Road, Taipei, 10617, Taiwan, Republic of China.
- Research and Development Center for Medical Devices, National Taiwan University, Taipei, Taiwan.
- Institute of Cellular and System Medicine, National Health Research Institutes, No. 35 Keyan Road, Miaoli, 35053, Taiwan, Republic of China.
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84
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3D Printing of Bioceramics for Bone Tissue Engineering. MATERIALS 2019; 12:ma12203361. [PMID: 31618857 PMCID: PMC6829398 DOI: 10.3390/ma12203361] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 10/01/2019] [Accepted: 10/08/2019] [Indexed: 01/06/2023]
Abstract
Bioceramics have frequent use in functional restoration of hard tissues to improve human well-being. Additive manufacturing (AM) also known as 3D printing is an innovative material processing technique extensively applied to produce bioceramic parts or scaffolds in a layered perspicacious manner. Moreover, the applications of additive manufacturing in bioceramics have the capability to reliably fabricate the commercialized scaffolds tailored for practical clinical applications, and the potential to survive in the new era of effective hard tissue fabrication. The similarity of the materials with human bone histomorphometry makes them conducive to use in hard tissue engineering scheme. The key objective of this manuscript is to explore the applications of bioceramics-based AM in bone tissue engineering. Furthermore, the article comprehensively and categorically summarizes some novel bioceramics based AM techniques for the restoration of bones. At prior stages of this article, different ceramics processing AM techniques have been categorized, subsequently, processing of frequently used materials for bone implants and complexities associated with these materials have been elaborated. At the end, some novel applications of bioceramics in orthopedic implants and some future directions are also highlighted to explore it further. This review article will help the new researchers to understand the basic mechanism and current challenges in neophyte techniques and the applications of bioceramics in the orthopedic prosthesis.
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85
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Tomasina C, Bodet T, Mota C, Moroni L, Camarero-Espinosa S. Bioprinting Vasculature: Materials, Cells and Emergent Techniques. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2701. [PMID: 31450791 PMCID: PMC6747573 DOI: 10.3390/ma12172701] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/18/2019] [Accepted: 08/19/2019] [Indexed: 12/13/2022]
Abstract
Despite the great advances that the tissue engineering field has experienced over the last two decades, the amount of in vitro engineered tissues that have reached a stage of clinical trial is limited. While many challenges are still to be overcome, the lack of vascularization represents a major milestone if tissues bigger than approximately 200 µm are to be transplanted. Cell survival and homeostasis is to a large extent conditioned by the oxygen and nutrient transport (as well as waste removal) by blood vessels on their proximity and spontaneous vascularization in vivo is a relatively slow process, leading all together to necrosis of implanted tissues. Thus, in vitro vascularization appears to be a requirement for the advancement of the field. One of the main approaches to this end is the formation of vascular templates that will develop in vitro together with the targeted engineered tissue. Bioprinting, a fast and reliable method for the deposition of cells and materials on a precise manner, appears as an excellent fabrication technique. In this review, we provide a comprehensive background to the fields of vascularization and bioprinting, providing details on the current strategies, cell sources, materials and outcomes of these studies.
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Affiliation(s)
- Clarissa Tomasina
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Tristan Bodet
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Carlos Mota
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands
| | - Lorenzo Moroni
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
| | - Sandra Camarero-Espinosa
- MERLN Institute for Technology-inspired Regenerative Medicine, Complex Tissue Regeneration Department, Maastricht University, P.O. Box 616, 6200MD Maastricht, The Netherlands.
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86
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Appuhamillage GA, Chartrain N, Meenakshisundaram V, Feller KD, Williams CB, Long TE. 110th Anniversary: Vat Photopolymerization-Based Additive Manufacturing: Current Trends and Future Directions in Materials Design. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b02679] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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87
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Jia X, Han W, Xue T, Zhao D, Li X, Nie J, Wang T. Diphenyl sulfone-based A–π-D–π-A dyes as efficient initiators for one-photon and two-photon initiated polymerization. Polym Chem 2019. [DOI: 10.1039/c8py01778f] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Diphenyl sulfone-based symmetrical A–π-D–π-A dyes as efficient initiators for one-photon and two-photon initiated polymerization.
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Affiliation(s)
- Xiaoqin Jia
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemistry Technology
- Beijing
- People's Republic of China
| | - Weixiang Han
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemistry Technology
- Beijing
- People's Republic of China
| | - Tanlong Xue
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemistry Technology
- Beijing
- People's Republic of China
| | - Di Zhao
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemistry Technology
- Beijing
- People's Republic of China
| | - Xiuyan Li
- College of Materials Science and Engineering
- Beijing Institute of Fashion Technology
- Beijing
- People's Republic of China
| | - Jun Nie
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemistry Technology
- Beijing
- People's Republic of China
| | - Tao Wang
- Department of Organic Chemistry
- College of Science
- Beijing University of Chemistry Technology
- Beijing
- People's Republic of China
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88
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Dommati H, Ray SS, Wang JC, Chen SS. A comprehensive review of recent developments in 3D printing technique for ceramic membrane fabrication for water purification. RSC Adv 2019; 9:16869-16883. [PMID: 35516413 PMCID: PMC9064412 DOI: 10.1039/c9ra00872a] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 05/09/2019] [Indexed: 11/21/2022] Open
Abstract
Additive manufacturing (AM), which is also commonly known as 3D printing, provides flexibility in the manufacturing of complex geometric parts at competitive prices and within a low production time. However, AM has not been used to a large extent in filtration and water treatment processes. AM results in the creation of millions of nanofibers that are sublayered on top of each other and compressed into a thin membrane. AM is a novel technique for fabricating filtration membranes with different shapes, sizes and controlled porosity, which cannot be achieved using conventional process such as electrospinning and knife casting. In this paper, we review the advantages and limitations of AM processes for fabricating ceramic membranes. Moreover, a brief background of AM processes is provided, and their future prospects are examined. Due to their potential benefits for fabrication and flexibility with different materials, AM methods are promising in the field of membrane engineering. Additive manufacturing (AM), which is also commonly known as 3D printing, provides flexibility in the manufacturing of complex geometric parts at competitive prices and within a low production time.![]()
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Affiliation(s)
- Hitesh Dommati
- Department of Mechanical Engineering
- National Taipei University of Technology
- Taiwan
- Additive Manufacturing Center for Mass Customization Production
- National Taipei University of Technology
| | - Saikat Sinha Ray
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taiwan
| | - Jia-Chang Wang
- Department of Mechanical Engineering
- National Taipei University of Technology
- Taiwan
- Additive Manufacturing Center for Mass Customization Production
- National Taipei University of Technology
| | - Shiao-Shing Chen
- Institute of Environmental Engineering and Management
- National Taipei University of Technology
- Taiwan
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89
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Guterman R, Smith CA. Photopolymerization of Ionic Liquids – A Mutually Beneficial Approach for Materials Fabrication. Isr J Chem 2018. [DOI: 10.1002/ijch.201800123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ryan Guterman
- Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Christene A. Smith
- Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
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90
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Chen YC, Kuo YT, Ho TH. Photo-polymerization properties of type-II photoinitiator systems based on 2-chlorohexaaryl biimidazole (o-Cl-HABI) and various N-phenylglycine (NPG) derivatives. Photochem Photobiol Sci 2018; 18:190-197. [PMID: 30411096 DOI: 10.1039/c8pp00300a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A series of p-substituted NPG derivatives (Cl-NPG, OMe-NPG and NO2-NPG) comprising different push-pull characteristics have been synthesized and characterized. The NPG derivatives have good thermal stability and red shifted absorption when compared with the original N-phenyl glycine (NPG) compound. These NPGs were selected in combination with 2-chlorohexaaryl biimidazole (o-Cl-HABI) for Type II free radical polymerization (FRP). Commercial NPG was also mixed with o-Cl-HABI for comparison. Their photo-polymerization properties were investigated by the gel fraction method in a nitrogen atmosphere. Electron transfer efficiencies for those Type II packages were studied by cyclic voltammetry (CV) and free energy change ΔG results.
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Affiliation(s)
- Yung-Chung Chen
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, 415 jiangong Rd., Sanmin District, Kaohsiung City 80778, Taiwan, Republic of China. and Photo-SMART (Photo-sensitive material advanced research and technology Center), National Kaohsiung University of Science and Technology, 415, jiangong Rd., Sanmin District, Kaohsiung City 80778, Taiwan, Republic of China
| | - Yuan-Tsung Kuo
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, 415 jiangong Rd., Sanmin District, Kaohsiung City 80778, Taiwan, Republic of China.
| | - Tsung-Han Ho
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, 415 jiangong Rd., Sanmin District, Kaohsiung City 80778, Taiwan, Republic of China.
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91
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Sasmal P, Datta P, Wu Y, Ozbolat IT. 3D bioprinting for modelling vasculature. MICROPHYSIOLOGICAL SYSTEMS 2018; 2:9. [PMID: 30931432 PMCID: PMC6436836 DOI: 10.21037/mps.2018.10.02] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Though in vivo models provide the most physiologically-relevant environment for studying tissue development and function, an in vitro substitute is being offered by the advancement of three-dimensional (3D) bioprinting technology, which is a reproducible and scalable fabrication strategy providing precise 3D control compared to conventional microfluidic tissue fabrication methods. In this review, vasculature models printed using extrusion-, droplet-, and laser-based bioprinting techniques are summarized and compared. Besides bioprinting of hydrogels as bioinks, an alternative method to obtain vascular models by bioprinting is to use exogenous biomaterial-free cell aggregates such as tissue spheroids and cell pellet, which has also been discussed here. In addition, there have been efforts to fabricate micro-vasculature constructs (e.g., capillaries) to overcome the practical limitations of bioprinting of large scale vascular networks. At the end of the review, limitations and prospective of bioprinting in vasculature modelling has also been expounded.
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Affiliation(s)
- Pranabesh Sasmal
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology Shibpur, Howrah, India
| | - Pallab Datta
- Centre for Healthcare Science and Technology, Indian Institute of Engineering Science and Technology Shibpur, Howrah, India
| | - Yang Wu
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, USA
| | - Ibrahim T. Ozbolat
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, USA
- Biomedical Engineering Department, Penn State University, University Park, PA, USA
- Materials Research Institute, Penn State University, University Park, PA, USA
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92
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Parisi L, Toffoli A, Ghiacci G, Macaluso GM. Tailoring the Interface of Biomaterials to Design Effective Scaffolds. J Funct Biomater 2018; 9:E50. [PMID: 30134538 PMCID: PMC6165026 DOI: 10.3390/jfb9030050] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 08/17/2018] [Accepted: 08/17/2018] [Indexed: 12/21/2022] Open
Abstract
Tissue engineering (TE) is a multidisciplinary science, which including principles from material science, biology and medicine aims to develop biological substitutes to restore damaged tissues and organs. A major challenge in TE is the choice of suitable biomaterial to fabricate a scaffold that mimics native extracellular matrix guiding resident stem cells to regenerate the functional tissue. Ideally, the biomaterial should be tailored in order that the final scaffold would be (i) biodegradable to be gradually replaced by regenerating new tissue, (ii) mechanically similar to the tissue to regenerate, (iii) porous to allow cell growth as nutrient, oxygen and waste transport and (iv) bioactive to promote cell adhesion and differentiation. With this perspective, this review discusses the options and challenges facing biomaterial selection when a scaffold has to be designed. We highlight the possibilities in the final mold the materials should assume and the most effective techniques for its fabrication depending on the target tissue, including the alternatives to ameliorate its bioactivity. Furthermore, particular attention has been given to the influence that all these aspects have on resident cells considering the frontiers of materiobiology. In addition, a focus on chitosan as a versatile biomaterial for TE scaffold fabrication has been done, highlighting its latest advances in the literature on bone, skin, cartilage and cornea TE.
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Affiliation(s)
- Ludovica Parisi
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Andrea Toffoli
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Giulia Ghiacci
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
| | - Guido M Macaluso
- Centro Universitario di Odontoiatria, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
- Dipartimento di Medicina e Chirurgia, Università degli Studi di Parma, Via Gramsci 14, 43126 Parma, Italy.
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