151
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Lepowsky E, Tasoglu S. 3D printing for drug manufacturing: A perspective on the future of pharmaceuticals. Int J Bioprint 2017; 4:119. [PMID: 33102905 PMCID: PMC7582011 DOI: 10.18063/ijb.v4i1.119] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Accepted: 09/18/2017] [Indexed: 01/16/2023] Open
Abstract
Since a three-dimensional (3D) printed drug was first approved by the Food and Drug Administration in 2015, there has been a growing interest in 3D printing for drug manufacturing. There are multiple 3D printing methods - including selective laser sintering, binder deposition, stereolithography, inkjet printing, extrusion-based printing, and fused deposition modeling - which are compatible with printing drug products, in addition to both polymer filaments and hydrogels as materials for drug carriers. We see the adaptability of 3D printing as a revolutionary force in the pharmaceutical industry. Release characteristics of drugs may be controlled by complex 3D printed geometries and architectures. Precise and unique doses can be engineered and fabricated via 3D printing according to individual prescriptions. On-demand printing of drug products can be implemented for drugs with limited shelf life or for patient-specific medications, offering an alternative to traditional compounding pharmacies. For these reasons, 3D printing for drug manufacturing is the future of pharmaceuticals, making personalized medicine possible while also transforming pharmacies.
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Affiliation(s)
- Eric Lepowsky
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, USA
| | - Savas Tasoglu
- Department of Mechanical Engineering, University of Connecticut, Storrs, CT, USA
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT, USA
- Institute of Materials Science, University of Connecticut, Storrs, CT, USA
- Institute for Collaboration on Health, Intervention, and Policy, University of Connecticut, Storrs, CT, USA
- The Connecticut Institute for the Brain and Cognitive Sciences, University of Connecticut, Storrs, CT, USA
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152
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Qiu J, Gao Q, Zhao H, Fu J, He Y. Rapid Customization of 3D Integrated Microfluidic Chips via Modular Structure-Based Design. ACS Biomater Sci Eng 2017; 3:2606-2616. [DOI: 10.1021/acsbiomaterials.7b00401] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jingjiang Qiu
- State
Key Laboratory of Fluid Power and Mechatronic Systems, School
of Mechanical Engineering, and ‡Key Laboratory of 3D Printing Process and
Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qing Gao
- State
Key Laboratory of Fluid Power and Mechatronic Systems, School
of Mechanical Engineering, and ‡Key Laboratory of 3D Printing Process and
Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Haiming Zhao
- State
Key Laboratory of Fluid Power and Mechatronic Systems, School
of Mechanical Engineering, and ‡Key Laboratory of 3D Printing Process and
Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jianzhong Fu
- State
Key Laboratory of Fluid Power and Mechatronic Systems, School
of Mechanical Engineering, and ‡Key Laboratory of 3D Printing Process and
Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Yong He
- State
Key Laboratory of Fluid Power and Mechatronic Systems, School
of Mechanical Engineering, and ‡Key Laboratory of 3D Printing Process and
Equipment of Zhejiang Province, School of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
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153
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Pekkanen AM, Mondschein RJ, Williams CB, Long TE. 3D Printing Polymers with Supramolecular Functionality for Biological Applications. Biomacromolecules 2017; 18:2669-2687. [PMID: 28762718 DOI: 10.1021/acs.biomac.7b00671] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Supramolecular chemistry continues to experience widespread growth, as fine-tuned chemical structures lead to well-defined bulk materials. Previous literature described the roles of hydrogen bonding, ionic aggregation, guest/host interactions, and π-π stacking to tune mechanical, viscoelastic, and processing performance. The versatility of reversible interactions enables the more facile manufacturing of molded parts with tailored hierarchical structures such as tissue engineered scaffolds for biological applications. Recently, supramolecular polymers and additive manufacturing processes merged to provide parts with control of the molecular, macromolecular, and feature length scales. Additive manufacturing, or 3D printing, generates customizable constructs desirable for many applications, and the introduction of supramolecular interactions will potentially increase production speed, offer a tunable surface structure for controlling cell/scaffold interactions, and impart desired mechanical properties through reinforcing interlayer adhesion and introducing gradients or self-assembled structures. This review details the synthesis and characterization of supramolecular polymers suitable for additive manufacture and biomedical applications as well as the use of supramolecular polymers in additive manufacturing for drug delivery and complex tissue scaffold formation. The effect of supramolecular assembly and its dynamic behavior offers potential for controlling the anisotropy of the printed objects with exquisite geometrical control. The potential for supramolecular polymers to generate well-defined parts, hierarchical structures, and scaffolds with gradient properties/tuned surfaces provides an avenue for developing next-generation biomedical devices and tissue scaffolds.
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Affiliation(s)
- Allison M Pekkanen
- School of Biomedical Engineering and Sciences, Virginia Tech , Blacksburg, Virginia 24061, United States.,Macromolecules Innovation Institute (MII), Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Ryan J Mondschein
- Macromolecules Innovation Institute (MII), Virginia Tech , Blacksburg, Virginia 24061, United States.,Department of Chemistry, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Christopher B Williams
- Macromolecules Innovation Institute (MII), Virginia Tech , Blacksburg, Virginia 24061, United States.,Department of Mechanical Engineering, Virginia Tech , Blacksburg, Virginia 24061, United States
| | - Timothy E Long
- Macromolecules Innovation Institute (MII), Virginia Tech , Blacksburg, Virginia 24061, United States.,Department of Chemistry, Virginia Tech , Blacksburg, Virginia 24061, United States
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154
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Vismara I, Papa S, Rossi F, Forloni G, Veglianese P. Current Options for Cell Therapy in Spinal Cord Injury. Trends Mol Med 2017; 23:831-849. [PMID: 28811172 DOI: 10.1016/j.molmed.2017.07.005] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Revised: 07/13/2017] [Accepted: 07/16/2017] [Indexed: 12/12/2022]
Abstract
Spinal cord injury (SCI) is a complex pathology that evolves after primary acute mechanical injury, causing further damage to the spinal cord tissue that exacerbates clinical outcomes. Based on encouraging results from preclinical experiments, some cell treatments being translated into clinical practice demonstrate promising and effective improvement in sensory/motor function. Combinatorial treatments of cell and drug/biological factors have been demonstrated to be more effective than cell treatments alone. Recent advances have led to the development of biomaterials aiming to promote in situ cell delivery for SCI, together with combinatorial strategies using drugs/biomolecules to achieve a maximized multitarget approach. This review provides an overview of single and combinatorial regenerative cell treatments as well as potential delivery options to treat SCI.
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Affiliation(s)
- Irma Vismara
- Dipartimento di Neuroscienze, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto di Ricerche Farmacologiche Mario Negri, via La Masa 19, 20156 Milano, Italy; These authors contributed equally to this work
| | - Simonetta Papa
- Dipartimento di Neuroscienze, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto di Ricerche Farmacologiche Mario Negri, via La Masa 19, 20156 Milano, Italy; These authors contributed equally to this work
| | - Filippo Rossi
- Dipartimento di Chimica, Materiali e Ingegneria Chimica 'Giulio Natta', Politecnico di Milano, via Mancinelli 7, 20131 Milano, Italy
| | - Gianluigi Forloni
- Dipartimento di Neuroscienze, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto di Ricerche Farmacologiche Mario Negri, via La Masa 19, 20156 Milano, Italy
| | - Pietro Veglianese
- Dipartimento di Neuroscienze, Istituto Di Ricovero e Cura a Carattere Scientifico (IRCCS) Istituto di Ricerche Farmacologiche Mario Negri, via La Masa 19, 20156 Milano, Italy.
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155
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Investigation of Quasi-Static Indentation Response of Inkjet Printed Sandwich Structures under Various Indenter Geometries. MATERIALS 2017; 10:ma10030290. [PMID: 28772649 PMCID: PMC5503310 DOI: 10.3390/ma10030290] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 03/02/2017] [Accepted: 03/05/2017] [Indexed: 01/01/2023]
Abstract
The objective of this investigation was to determine the quasi-static indentation response and failure mode in three-dimensional (3D) printed trapezoidal core structures, and to characterize the energy absorbed by the structures. In this work, the trapezoidal sandwich structure was designed in the following two ways. Firstly, the trapezoidal core along with its facesheet was 3D printed as a single element comprising a single material for both core and facesheet (type A); Secondly, the trapezoidal core along with facesheet was 3D printed, but with variation in facesheet materials (type B). Quasi-static indentation was carried out using three different indenters, namely standard hemispherical, conical, and flat indenters. Acoustic emission (AE) technique was used to capture brittle cracking in the specimens during indentation. The major failure modes were found to be brittle failure and quasi-brittle fractures. The measured indentation energy was at a maximum when using a conical indenter at 9.40 J and 9.66 J and was at a minimum when using a hemispherical indenter at 6.87 J and 8.82 J for type A and type B series specimens respectively. The observed maximum indenter displacements at failure were the effect of material variations and composite configurations in the facesheet.
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156
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Knowlton S, Yenilmez B, Anand S, Tasoglu S. Photocrosslinking-based bioprinting: Examining crosslinking schemes. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.bprint.2017.03.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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157
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Chua CK, Yeong WY, An J. Special Issue: 3D Printing for Biomedical Engineering. MATERIALS 2017; 10:ma10030243. [PMID: 28772604 PMCID: PMC5503334 DOI: 10.3390/ma10030243] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 02/27/2017] [Accepted: 02/27/2017] [Indexed: 12/11/2022]
Abstract
Three-dimensional (3D) printing has a long history of applications in biomedical engineering. The development and expansion of traditional biomedical applications are being advanced and enriched by new printing technologies. New biomedical applications such as bioprinting are highly attractive and trendy. This Special Issue aims to provide readers with a glimpse of the recent profile of 3D printing in biomedical research.
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Affiliation(s)
- Chee Kai Chua
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - Jia An
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore.
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158
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Ng WL, Yeong WY, Naing MW. Polyvinylpyrrolidone-Based Bio-Ink Improves Cell Viability and Homogeneity during Drop-On-Demand Printing. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E190. [PMID: 28772551 PMCID: PMC5459162 DOI: 10.3390/ma10020190] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 02/09/2017] [Accepted: 02/13/2017] [Indexed: 01/09/2023]
Abstract
Drop-on-demand (DOD) bioprinting has attracted huge attention for numerous biological applications due to its precise control over material volume and deposition pattern in a contactless printing approach. 3D bioprinting is still an emerging field and more work is required to improve the viability and homogeneity of printed cells during the printing process. Here, a general purpose bio-ink was developed using polyvinylpyrrolidone (PVP) macromolecules. Different PVP-based bio-inks (0%-3% w/v) were prepared and evaluated for their printability; the short-term and long-term viability of the printed cells were first investigated. The Z value of a bio-ink determines its printability; it is the inverse of the Ohnesorge number (Oh), which is the ratio between the Reynolds number and a square root of the Weber number, and is independent of the bio-ink velocity. The viability of printed cells is dependent on the Z values of the bio-inks; the results indicated that the cells can be printed without any significant impairment using a bio-ink with a threshold Z value of ≤9.30 (2% and 2.5% w/v). Next, the cell output was evaluated over a period of 30 min. The results indicated that PVP molecules mitigate the cell adhesion and sedimentation during the printing process; the 2.5% w/v PVP bio-ink demonstrated the most consistent cell output over a period of 30 min. Hence, PVP macromolecules can play a critical role in improving the cell viability and homogeneity during the bioprinting process.
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Affiliation(s)
- Wei Long Ng
- Singapore Centre for 3D Printing (SC3DP), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, Singapore 639798, Singapore.
- Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science, Technology and Research, 73 Nanyang Drive, Singapore 637662, Singapore.
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing (SC3DP), School of Mechanical and Aerospace Engineering, Nanyang Technological University (NTU), 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - May Win Naing
- Singapore Institute of Manufacturing Technology (SIMTech), Agency for Science, Technology and Research, 73 Nanyang Drive, Singapore 637662, Singapore.
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159
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Shi P, Laude A, Yeong WY. Investigation of cell viability and morphology in 3D bio-printed alginate constructs with tunable stiffness. J Biomed Mater Res A 2017; 105:1009-1018. [DOI: 10.1002/jbm.a.35971] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Revised: 11/28/2016] [Accepted: 11/30/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Pujiang Shi
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
| | - Augustinus Laude
- National Healthcare Group Eye Institute, Tan Tock Seng Hospital; Singapore 308433
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering; Nanyang Technological University; 50 Nanyang Avenue Singapore 639798
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160
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Suntornnond R, An J, Chua CK. Roles of support materials in 3D bioprinting - Present and future. Int J Bioprint 2017; 3:006. [PMID: 33094181 PMCID: PMC7575619 DOI: 10.18063/ijb.2017.01.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/07/2016] [Indexed: 11/23/2022] Open
Abstract
Bioprinting has been introduced as a new technique in tissue engineering for more than a decade. However, characteristics of bioprinted part are still distinct from native human tissue and organ in terms of both shape fidelity and functionality. Recently, the combination of at least two hydrogels or "multi-materials/multi-nozzles" bioprinting enables simultaneous deposition of both model and support materials, thus advancing the complexity of bioprinted shapes from 2.5D lattice into micro-channeled 3D structure. In this article, a perspective on the roles of second bioinks or support materials is presented and future outlook of sacrificial materials is discussed.
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Affiliation(s)
- Ratima Suntornnond
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Jia An
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Chee Kai Chua
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
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161
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Moldovan NI, Hibino N, Nakayama K. Principles of the Kenzan Method for Robotic Cell Spheroid-Based Three-Dimensional Bioprinting<sup/>. TISSUE ENGINEERING PART B-REVIEWS 2017; 23:237-244. [PMID: 27917703 DOI: 10.1089/ten.teb.2016.0322] [Citation(s) in RCA: 172] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Bioprinting is a technology with the prospect to change the way many diseases are treated, by replacing the damaged tissues with live de novo created biosimilar constructs. However, after more than a decade of incubation and many proofs of concept, the field is still in its infancy. The current stagnation is the consequence of its early success: the first bioprinters, and most of those that followed, were modified versions of the three-dimensional printers used in additive manufacturing, redesigned for layer-by-layer dispersion of biomaterials. In all variants (inkjet, microextrusion, or laser assisted), this approach is material ("scaffold") dependent and energy intensive, making it hardly compatible with some of the intended biological applications. Instead, the future of bioprinting may benefit from the use of gentler scaffold-free bioassembling methods. A substantial body of evidence has accumulated, indicating this is possible by use of preformed cell spheroids, which have been assembled in cartilage, bone, and cardiac muscle-like constructs. However, a commercial instrument capable to directly and precisely "print" spheroids has not been available until the invention of the microneedles-based ("Kenzan") spheroid assembling and the launching in Japan of a bioprinter based on this method. This robotic platform laces spheroids into predesigned contiguous structures with micron-level precision, using stainless steel microneedles ("kenzans") as temporary support. These constructs are further cultivated until the spheroids fuse into cellular aggregates and synthesize their own extracellular matrix, thus attaining the needed structural organization and robustness. This novel technology opens wide opportunities for bioengineering of tissues and organs.
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Affiliation(s)
- Nicanor I Moldovan
- 1 Department of Biomedical Engineering, Schools of Engineering and Medicine, Indiana University-Purdue University Indianapolis , Indianapolis, Indiana.,2 Department of Ophthalmology, Schools of Engineering and Medicine, Indiana University-Purdue University Indianapolis , Indianapolis, Indiana
| | - Narutoshi Hibino
- 3 Department of Surgery, Division of Cardiac Surgery, Johns Hopkins University , Baltimore, Maryland
| | - Koichi Nakayama
- 4 Department of Regenerative Medicine and Biomedical Engineering, Faculty of Medicine, Saga University , Japan
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162
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Ng WL, Lee JM, Yeong WY, Win Naing M. Microvalve-based bioprinting – process, bio-inks and applications. Biomater Sci 2017; 5:632-647. [DOI: 10.1039/c6bm00861e] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
DOD microvalve-based bioprinting system provides a highly advanced manufacturing platform that facilitates precise control over the cellular and biomaterial deposition in a highly reproducible and reliable manner. This article highlights promising directions to transform microvalve-based bioprinting into an enabling technology that will potentially drive significant advances in the field of TERM.
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Affiliation(s)
- Wei Long Ng
- Singapore Centre for 3D Printing (SC3DP)
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University (NTU)
- Singapore 639798
- Singapore
| | - Jia Min Lee
- Singapore Centre for 3D Printing (SC3DP)
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University (NTU)
- Singapore 639798
- Singapore
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing (SC3DP)
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University (NTU)
- Singapore 639798
- Singapore
| | - May Win Naing
- Singapore Institute of Manufacturing Technology (SIMTech)
- Agency for Science
- Technology and Research
- Singapore 637662
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163
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Tan EYS, Agarwala S, Yap YL, Tan CSH, Laude A, Yeong WY. Novel method for the fabrication of ultrathin, free-standing and porous polymer membranes for retinal tissue engineering. J Mater Chem B 2017. [DOI: 10.1039/c7tb00376e] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Retinal degeneration causes permanent visual loss and affects millions of people worldwide.
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Affiliation(s)
- Edgar Yong Sheng Tan
- School of Mechanical & Aerospace Engineering
- Nanyang Technological University
- Singapore
| | - Shweta Agarwala
- School of Mechanical & Aerospace Engineering
- Nanyang Technological University
- Singapore
| | - Yee Ling Yap
- School of Mechanical & Aerospace Engineering
- Nanyang Technological University
- Singapore
| | - Colin Siang Hui Tan
- Department of Ophthalmology
- National Healthcare Group Eye Institute
- Tan Tock Seng Hospital
- Singapore
| | - Augustinus Laude
- Department of Ophthalmology
- National Healthcare Group Eye Institute
- Tan Tock Seng Hospital
- Singapore
| | - Wai Yee Yeong
- School of Mechanical & Aerospace Engineering
- Nanyang Technological University
- Singapore
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164
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Nakagawa Y, Ohta S, Nakamura M, Ito T. 3D inkjet printing of star block copolymer hydrogels cross-linked using various metallic ions. RSC Adv 2017. [DOI: 10.1039/c7ra11509a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We have, for the first time, investigated 3D inkjet printing of ionically cross-linked star block copolymer hydrogels.
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Affiliation(s)
- Y. Nakagawa
- Department of Chemical System Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - S. Ohta
- Center for Disease Biology and Integrative Medicine
- The University of Tokyo
- Bunkyo-ku
- Japan
| | - M. Nakamura
- Graduate School of Science and Engineering
- University of Toyama
- Toyama 930-8555
- Japan
| | - T. Ito
- Department of Chemical System Engineering
- The University of Tokyo
- Bunkyo-ku
- Japan
- Center for Disease Biology and Integrative Medicine
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165
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Donderwinkel I, van Hest JCM, Cameron NR. Bio-inks for 3D bioprinting: recent advances and future prospects. Polym Chem 2017. [DOI: 10.1039/c7py00826k] [Citation(s) in RCA: 207] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In the last decade, interest in the field of three-dimensional (3D) bioprinting has increased enormously. This review describes all the currently used bio-printing inks, including polymeric hydrogels, polymer bead microcarriers, cell aggregates and extracellular matrix proteins.
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Affiliation(s)
- Ilze Donderwinkel
- Department of Materials Science and Engineering
- Monash University
- Clayton
- Australia
- Department of Bio-organic Chemistry
| | - Jan C. M. van Hest
- Department of Bio-organic Chemistry
- Radboud University
- 6525 AJ Nijmegen
- The Netherlands
- Department of Chemical Engineering and Chemistry
| | - Neil R. Cameron
- Department of Materials Science and Engineering
- Monash University
- Clayton
- Australia
- School of Engineering
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166
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Tan YJ, Tan X, Yeong WY, Tor SB. Hybrid microscaffold-based 3D bioprinting of multi-cellular constructs with high compressive strength: A new biofabrication strategy. Sci Rep 2016; 6:39140. [PMID: 27966623 PMCID: PMC5155425 DOI: 10.1038/srep39140] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/17/2016] [Indexed: 12/27/2022] Open
Abstract
A hybrid 3D bioprinting approach using porous microscaffolds and extrusion-based printing method is presented. Bioink constitutes of cell-laden poly(D,L-lactic-co-glycolic acid) (PLGA) porous microspheres with thin encapsulation of agarose-collagen composite hydrogel (AC hydrogel). Highly porous microspheres enable cells to adhere and proliferate before printing. Meanwhile, AC hydrogel allows a smooth delivery of cell-laden microspheres (CLMs), with immediate gelation of construct upon printing on cold build platform. Collagen fibrils were formed in the AC hydrogel during culture at body temperature, improving the cell affinity and spreading compared to pure agarose hydrogel. Cells were proven to proliferate in the bioink and the bioprinted construct. High cell viability up to 14 days was observed. The compressive strength of the bioink is more than 100 times superior to those of pure AC hydrogel. A potential alternative in tissue engineering of tissue replacements and biological models is made possible by combining the advantages of the conventional solid scaffolds with the new 3D bioprinting technology.
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Affiliation(s)
- Yu Jun Tan
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Xipeng Tan
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
| | - Shu Beng Tor
- Singapore Centre for 3D Printing, School of Mechanical &Aerospace Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798 Singapore
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