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Rossi A, Pescara T, Gambelli AM, Gaggia F, Asthana A, Perrier Q, Basta G, Moretti M, Senin N, Rossi F, Orlando G, Calafiore R. Biomaterials for extrusion-based bioprinting and biomedical applications. Front Bioeng Biotechnol 2024; 12:1393641. [PMID: 38974655 PMCID: PMC11225062 DOI: 10.3389/fbioe.2024.1393641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 05/31/2024] [Indexed: 07/09/2024] Open
Abstract
Amongst the range of bioprinting technologies currently available, bioprinting by material extrusion is gaining increasing popularity due to accessibility, low cost, and the absence of energy sources, such as lasers, which may significantly damage the cells. New applications of extrusion-based bioprinting are systematically emerging in the biomedical field in relation to tissue and organ fabrication. Extrusion-based bioprinting presents a series of specific challenges in relation to achievable resolutions, accuracy and speed. Resolution and accuracy in particular are of paramount importance for the realization of microstructures (for example, vascularization) within tissues and organs. Another major theme of research is cell survival and functional preservation, as extruded bioinks have cells subjected to considerable shear stresses as they travel through the extrusion apparatus. Here, an overview of the main available extrusion-based printing technologies and related families of bioprinting materials (bioinks) is provided. The main challenges related to achieving resolution and accuracy whilst assuring cell viability and function are discussed in relation to specific application contexts in the field of tissue and organ fabrication.
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Affiliation(s)
- Arianna Rossi
- Smart Manufacturing Laboratory, Engineering Department, University of Perugia, Perugia, Italy
| | - Teresa Pescara
- Laboratory for Endocrine Cell Transplant and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Alberto Maria Gambelli
- Department of Civil and Environmental Engineering, University of Perugia, Perugia, Italy
| | - Francesco Gaggia
- Laboratory for Endocrine Cell Transplant and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Amish Asthana
- Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Quentin Perrier
- Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Giuseppe Basta
- Laboratory for Endocrine Cell Transplant and Biohybrid Organs, Department of Medicine and Surgery, University of Perugia, Perugia, Italy
| | - Michele Moretti
- Smart Manufacturing Laboratory, Engineering Department, University of Perugia, Perugia, Italy
| | - Nicola Senin
- Smart Manufacturing Laboratory, Engineering Department, University of Perugia, Perugia, Italy
| | - Federico Rossi
- Engineering Department, University of Perugia, Perugia, Italy
| | - Giuseppe Orlando
- Wake Forest School of Medicine, Winston Salem, NC, United States
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2
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Khiari Z. Recent Developments in Bio-Ink Formulations Using Marine-Derived Biomaterials for Three-Dimensional (3D) Bioprinting. Mar Drugs 2024; 22:134. [PMID: 38535475 PMCID: PMC10971850 DOI: 10.3390/md22030134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/12/2024] [Accepted: 03/13/2024] [Indexed: 05/01/2024] Open
Abstract
3D bioprinting is a disruptive, computer-aided, and additive manufacturing technology that allows the obtention, layer-by-layer, of 3D complex structures. This technology is believed to offer tremendous opportunities in several fields including biomedical, pharmaceutical, and food industries. Several bioprinting processes and bio-ink materials have emerged recently. However, there is still a pressing need to develop low-cost sustainable bio-ink materials with superior qualities (excellent mechanical, viscoelastic and thermal properties, biocompatibility, and biodegradability). Marine-derived biomaterials, including polysaccharides and proteins, represent a viable and renewable source for bio-ink formulations. Therefore, the focus of this review centers around the use of marine-derived biomaterials in the formulations of bio-ink. It starts with a general overview of 3D bioprinting processes followed by a description of the most commonly used marine-derived biomaterials for 3D bioprinting, with a special attention paid to chitosan, glycosaminoglycans, alginate, carrageenan, collagen, and gelatin. The challenges facing the application of marine-derived biomaterials in 3D bioprinting within the biomedical and pharmaceutical fields along with future directions are also discussed.
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Affiliation(s)
- Zied Khiari
- National Research Council of Canada, Aquatic and Crop Resource Development Research Centre, 1411 Oxford Street, Halifax, NS B3H 3Z1, Canada
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3
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Kim J. Characterization of Biocompatibility of Functional Bioinks for 3D Bioprinting. Bioengineering (Basel) 2023; 10:bioengineering10040457. [PMID: 37106644 PMCID: PMC10135811 DOI: 10.3390/bioengineering10040457] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/02/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
Three-dimensional (3D) bioprinting with suitable bioinks has become a critical tool for fabricating 3D biomimetic complex structures mimicking physiological functions. While enormous efforts have been devoted to developing functional bioinks for 3D bioprinting, widely accepted bioinks have not yet been developed because they have to fulfill stringent requirements such as biocompatibility and printability simultaneously. To further advance our knowledge of the biocompatibility of bioinks, this review presents the evolving concept of the biocompatibility of bioinks and standardization efforts for biocompatibility characterization. This work also briefly reviews recent methodological advances in image analyses to characterize the biocompatibility of bioinks with regard to cell viability and cell-material interactions within 3D constructs. Finally, this review highlights a number of updated contemporary characterization technologies and future perspectives to further advance our understanding of the biocompatibility of functional bioinks for successful 3D bioprinting.
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Affiliation(s)
- Jinku Kim
- Department of Biological and Chemical Engineering, Hongik University, Sejong 30016, Republic of Korea
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4
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Naranjo-Alcazar R, Bendix S, Groth T, Gallego Ferrer G. Research Progress in Enzymatically Cross-Linked Hydrogels as Injectable Systems for Bioprinting and Tissue Engineering. Gels 2023; 9:gels9030230. [PMID: 36975679 PMCID: PMC10048521 DOI: 10.3390/gels9030230] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/03/2023] [Accepted: 03/07/2023] [Indexed: 03/18/2023] Open
Abstract
Hydrogels have been developed for different biomedical applications such as in vitro culture platforms, drug delivery, bioprinting and tissue engineering. Enzymatic cross-linking has many advantages for its ability to form gels in situ while being injected into tissue, which facilitates minimally invasive surgery and adaptation to the shape of the defect. It is a highly biocompatible form of cross-linking, which permits the harmless encapsulation of cytokines and cells in contrast to chemically or photochemically induced cross-linking processes. The enzymatic cross-linking of synthetic and biogenic polymers also opens up their application as bioinks for engineering tissue and tumor models. This review first provides a general overview of the different cross-linking mechanisms, followed by a detailed survey of the enzymatic cross-linking mechanism applied to both natural and synthetic hydrogels. A detailed analysis of their specifications for bioprinting and tissue engineering applications is also included.
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Affiliation(s)
- Raquel Naranjo-Alcazar
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, 46022 Valencia, Spain
- Correspondence:
| | - Sophie Bendix
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
| | - Thomas Groth
- Department of Biomedical Materials, Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Heinrich-Damerow-Strasse 4, 06120 Halle (Saale), Germany
- Interdisciplinary Center of Material Research, Martin Luther University Halle-Wittenberg, 06120 Halle (Saale), Germany
| | - Gloria Gallego Ferrer
- Centre for Biomaterials and Tissue Engineering (CBIT), Universitat Politècnica de València, 46022 Valencia, Spain
- Biomedical Research Networking Center on Bioengineering, Biomaterials and Nanomedicine, Carlos III Health Institute (CIBER-BBN, ISCIII), 46022 Valencia, Spain
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5
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Tripathi S, Mandal SS, Bauri S, Maiti P. 3D bioprinting and its innovative approach for biomedical applications. MedComm (Beijing) 2023; 4:e194. [PMID: 36582305 PMCID: PMC9790048 DOI: 10.1002/mco2.194] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 12/26/2022] Open
Abstract
3D bioprinting or additive manufacturing is an emerging innovative technology revolutionizing the field of biomedical applications by combining engineering, manufacturing, art, education, and medicine. This process involved incorporating the cells with biocompatible materials to design the required tissue or organ model in situ for various in vivo applications. Conventional 3D printing is involved in constructing the model without incorporating any living components, thereby limiting its use in several recent biological applications. However, this uses additional biological complexities, including material choice, cell types, and their growth and differentiation factors. This state-of-the-art technology consciously summarizes different methods used in bioprinting and their importance and setbacks. It also elaborates on the concept of bioinks and their utility. Biomedical applications such as cancer therapy, tissue engineering, bone regeneration, and wound healing involving 3D printing have gained much attention in recent years. This article aims to provide a comprehensive review of all the aspects associated with 3D bioprinting, from material selection, technology, and fabrication to applications in the biomedical fields. Attempts have been made to highlight each element in detail, along with the associated available reports from recent literature. This review focuses on providing a single platform for cancer and tissue engineering applications associated with 3D bioprinting in the biomedical field.
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Affiliation(s)
- Swikriti Tripathi
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
| | - Subham Shekhar Mandal
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
| | - Sudepta Bauri
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
| | - Pralay Maiti
- School of Material Science and TechnologyIndian Institute of Technology (Banaras Hindu University)VaranasiIndia
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6
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Gohari DP, Jafari SH, Khanmohammadi M, Bagher Z. Fabrication of cell-enclosed polyvinyl alcohol/gelatin derivative microfiber through flow focusing microfluidic system. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.07.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Khanmohammadi M, Jalessi M, Asghari A. Biomimetic hydrogel scaffolds via enzymatic reaction for cartilage tissue engineering. BMC Res Notes 2022; 15:174. [PMID: 35562776 PMCID: PMC9103298 DOI: 10.1186/s13104-022-06060-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/28/2022] [Indexed: 12/30/2022] Open
Abstract
Objective We aimed to evaluate cytocompatibility of hyaluronic acid (HA) and gelatin (Gela) conjugation with phenolic groups (Phs) via enzyme-mediated crosslinking. Phenolic moieties were substituted on the backbone of HA (HA-Ph) and Gela (Gela-Ph) and subsequently were subjected for horseradish peroxidase crosslinking in the presence of H2O2 as an electron donor to create a stable hybrid microenvironment for cellular behavior and cartilage tissue engineering. Results Successful synthesis of biopolymers confirmed by NRM and UV–Vis spectrophotometry. The physical characteristic of hydrogels including mechanical properties and water contact angle of hydrogels enhanced with addition of Gela-Ph in HA-based hydrogel. The Gela-Ph showed longest gelation time and highest degradation rate. The cellular studies showed cells did not attach to HA-Ph hydrogel. While, proper cell attachment and proliferation observed on blend hydrogel surface compared with the neat hydrogels which interpret by the existence of cell-adhesive motifs of utilized Gela-Ph in this hydrogel. The encapsulated cells in HA-Ph hydrogel were spheroid and just maintained their viability. Hydrogels containing Gela-Ph, the cells were spindle shape with high degrees of cytoplasmic extension. Overall, the results suggest that hybrid biomimetic hydrogel can provide a superior biological microenvironment for chondrocytes in 3D cartilage tissue engineering.
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Affiliation(s)
- Mehdi Khanmohammadi
- Skull Base Research Center, The Five Senses Institute, Hazrat Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran.
| | - Maryam Jalessi
- Skull Base Research Center, The Five Senses Institute, Hazrat Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Alimohamad Asghari
- Skull Base Research Center, The Five Senses Institute, Hazrat Rasoul Akram Hospital, School of Medicine, Iran University of Medical Sciences (IUMS), Tehran, Iran
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8
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Amiri SA, Berckel PV, Lai M, Dankelman J, Hendriks BHW. Tissue-mimicking phantom materials with tunable optical properties suitable for assessment of diffuse reflectance spectroscopy during electrosurgery. BIOMEDICAL OPTICS EXPRESS 2022; 13:2616-2643. [PMID: 35774339 PMCID: PMC9203083 DOI: 10.1364/boe.449637] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 02/08/2022] [Accepted: 02/09/2022] [Indexed: 06/15/2023]
Abstract
Emerging intraoperative tumor margin assessment techniques require the development of more complex and reliable organ phantoms to assess the performance of the technique before its translation into the clinic. In this work, electrically conductive tissue-mimicking materials (TMMs) based on fat, water and agar/gelatin were produced with tunable optical properties. The composition of the phantoms allowed for the assessment of tumor margins using diffuse reflectance spectroscopy, as the fat/water ratio served as a discriminating factor between the healthy and malignant tissue. Moreover, the possibility of using polyvinyl alcohol (PVA) or transglutaminase in combination with fat, water and gelatin for developing TMMs was studied. The diffuse spectral response of the developed phantom materials had a good match with the spectral response of porcine muscle and adipose tissue, as well as in vitro human breast tissue. Using the developed recipe, anatomically relevant heterogeneous breast phantoms representing the optical properties of different layers of the human breast were fabricated using 3D-printed molds. These TMMs can be used for further development of phantoms applicable for simulating the realistic breast conserving surgery workflow in order to evaluate the intraoperative optical-based tumor margin assessment techniques during electrosurgery.
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Affiliation(s)
- Sara Azizian Amiri
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, The Netherlands
| | - Pieter Van Berckel
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, The Netherlands
| | - Marco Lai
- Philips Research, IGT & US Devices and Systems Department, Eindhoven, The Netherlands
- Eindhoven University of Technology (TU/e), Eindhoven, The Netherlands
| | - Jenny Dankelman
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, The Netherlands
| | - Benno H. W. Hendriks
- Department of Biomechanical Engineering, Faculty of Mechanical, Maritime, and Materials Engineering, Delft University of Technology, The Netherlands
- Philips Research, IGT & US Devices and Systems Department, Eindhoven, The Netherlands
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9
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3D printed bio polymeric materials as a new perspective for wound dressing and skin tissue engineering applications: a review. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-02899-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Song K, Ren B, Zhai Y, Chai W, Huang Y. Effects of transglutaminase cross-linking process on printability of gelatin microgel-gelatin solution composite bioink. Biofabrication 2021; 14. [PMID: 34823234 DOI: 10.1088/1758-5090/ac3d75] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/25/2021] [Indexed: 11/12/2022]
Abstract
Three-dimensional (3D) bioprinting has emerged as a powerful engineering approach for various tissue engineering applications, particularly for the development of 3D cellular structures with unique mechanical and/or biological properties. For the jammed gelatin microgel-gelatin solution composite bioink, comprising a discrete phase of microgels (enzymatically gelled gelatin microgels) and a cross-linkable continuous gelatin precursor solution-based phase containing transglutaminase (TG), its rheological properties and printability change gradually due to the TG enzyme-induced cross-linking process. The objective of this study is to establish a direct mapping between the printability of the gelatin microgel-gelatin solution based cross-linkable composite bioink and the TG concentration and cross-linking time, respectively. Due to the inclusion of TG in the composite bioink, the bioink starts cross-linking once prepared and is usually prepared right before a printing process. Herein, the bioink printability is evaluated based on the three metrics: injectability, feature formability, and process-induced cell injury. In this study, the rheological properties such as the storage modulus and viscosity have been first systematically investigated and predicted at different TG concentrations and times during the cross-linking process using the first-order cross-linking kinetics model. The storage modulus and viscosity have been satisfactorily modeled as exponential functions of the TG concentration and time with an experimentally calibrated cross-linking kinetic rate constant. Furthermore, the injectability, feature formability, and process-induced cell injury have been successfully correlated to the TG concentration and cross-linking time via the storage modulus, viscosity, and/or process-induced shear stress. By combing the good injectability, good feature formability, and satisfactory cell viability zones, a good printability zone (1.65, 0.61, and 0.31 h for the composite bioinks with 1.00, 2.00, and 4.00% w/v TG, respectively) has been established during the printing of mouse fibroblast-based 2% gelatin B microgel-3% gelatin B solution composite bioink. This printability zone approach can be extended to the use of other cross-linkable bioinks for bioprinting applications.
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Affiliation(s)
- Kaidong Song
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, United States of America
| | - Bing Ren
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, United States of America
| | - Yingnan Zhai
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, United States of America
| | - Wenxuan Chai
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, United States of America
| | - Yong Huang
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, United States of America.,Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, United States of America
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Elham Badali, Hosseini M, Mohajer M, Hassanzadeh S, Saghati S, Hilborn J, Khanmohammadi M. Enzymatic Crosslinked Hydrogels for Biomedical Application. POLYMER SCIENCE SERIES A 2021. [DOI: 10.1134/s0965545x22030026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Willson K, Atala A, Yoo JJ. Bioprinting Au Natural: The Biologics of Bioinks. Biomolecules 2021; 11:1593. [PMID: 34827591 PMCID: PMC8615908 DOI: 10.3390/biom11111593] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/14/2021] [Accepted: 10/23/2021] [Indexed: 02/07/2023] Open
Abstract
The development of appropriate bioinks is a complex task, dependent on the mechanical and biochemical requirements of the final construct and the type of printer used for fabrication. The two most common tissue printers are micro-extrusion and digital light projection printers. Here we briefly discuss the required characteristics of a bioink for each of these printing processes. However, physical printing is only a short window in the lifespan of a printed construct-the system must support and facilitate cellular development after it is printed. To that end, we provide a broad overview of some of the biological molecules currently used as bioinks. Each molecule has advantages for specific tissues/cells, and potential disadvantages are discussed, along with examples of their current use in the field. Notably, it is stressed that active researchers are trending towards the use of composite bioinks. Utilizing the strengths from multiple materials is highlighted as a key component of bioink development.
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Affiliation(s)
| | | | - James J. Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston Salem, NC 27157, USA; (K.W.); (A.A.)
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13
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Choi DJ, Choi K, Park SJ, Kim YJ, Chung S, Kim CH. Suture Fiber Reinforcement of a 3D Printed Gelatin Scaffold for Its Potential Application in Soft Tissue Engineering. Int J Mol Sci 2021; 22:ijms222111600. [PMID: 34769034 PMCID: PMC8584198 DOI: 10.3390/ijms222111600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/18/2021] [Accepted: 10/25/2021] [Indexed: 11/16/2022] Open
Abstract
Gelatin has excellent biological properties, but its poor physical properties are a major obstacle to its use as a biomaterial ink. These disadvantages not only worsen the printability of gelatin biomaterial ink, but also reduce the dimensional stability of its 3D scaffolds and limit its application in the tissue engineering field. Herein, biodegradable suture fibers were added into a gelatin biomaterial ink to improve the printability, mechanical strength, and dimensional stability of the 3D printed scaffolds. The suture fiber reinforced gelatin 3D scaffolds were fabricated using the thermo-responsive properties of gelatin under optimized 3D printing conditions (-10 °C cryogenic plate, 40-80 kPa pneumatic pressure, and 9 mm/s printing speed), and were crosslinked using EDC/NHS to maintain their 3D structures. Scanning electron microscopy images revealed that the morphologies of the 3D printed scaffolds maintained their 3D structure after crosslinking. The addition of 0.5% (w/v) of suture fibers increased the printing accuracy of the 3D printed scaffolds to 97%. The suture fibers also increased the mechanical strength of the 3D printed scaffolds by up to 6-fold, and the degradation rate could be controlled by the suture fiber content. In in vitro cell studies, DNA assay results showed that human dermal fibroblasts' proliferation rate of a 3D printed scaffold containing 0.5% suture fiber was 10% higher than that of a 3D printed scaffold without suture fibers after 14 days of culture. Interestingly, the supplement of suture fibers into gelatin biomaterial ink was able to minimize the cell-mediated contraction of the cell cultured 3D scaffolds over the cell culture period. These results show that advanced biomaterial inks can be developed by supplementing biodegradable fibers to improve the poor physical properties of natural polymer-based biomaterial inks.
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Affiliation(s)
- Dong Jin Choi
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 75, Nowon-ro, Nowon-gu, Seoul 01812, Korea; (D.J.C.); (K.C.); (S.J.P.)
- Program in Biomicro System Technology, Korea University, Innovation Hall, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
| | - Kyoung Choi
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 75, Nowon-ro, Nowon-gu, Seoul 01812, Korea; (D.J.C.); (K.C.); (S.J.P.)
- Program in Biomicro System Technology, Korea University, Innovation Hall, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
| | - Sang Jun Park
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 75, Nowon-ro, Nowon-gu, Seoul 01812, Korea; (D.J.C.); (K.C.); (S.J.P.)
| | - Young-Jin Kim
- Department of Biomedical Engineering, Catholic University of Daegu, 13-13, Hayang-ro, Hayang-eup, Gyeongsan-si 38430, Korea;
| | - Seok Chung
- Program in Biomicro System Technology, Korea University, Innovation Hall, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
| | - Chun-Ho Kim
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 75, Nowon-ro, Nowon-gu, Seoul 01812, Korea; (D.J.C.); (K.C.); (S.J.P.)
- Correspondence: ; Tel.: +82-2-970-1319; Fax: +82-2-970-2402
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14
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Gerdes S, Ramesh S, Mostafavi A, Tamayol A, Rivero IV, Rao P. Extrusion-based 3D (Bio)Printed Tissue Engineering Scaffolds: Process-Structure-Quality Relationships. ACS Biomater Sci Eng 2021; 7:4694-4717. [PMID: 34498461 DOI: 10.1021/acsbiomaterials.1c00598] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biological additive manufacturing (Bio-AM) has emerged as a promising approach for the fabrication of biological scaffolds with nano- to microscale resolutions and biomimetic architectures beneficial to tissue engineering applications. However, Bio-AM processes tend to introduce flaws in the construct during fabrication. These flaws can be traced to material nonhomogeneity, suboptimal processing parameters, changes in the (bio)printing environment (such as nozzle clogs), and poor construct design, all with significant contributions to the alteration of a scaffold's mechanical properties. In addition, the biological response of endogenous and exogenous cells interacting with the defective scaffolds could become unpredictable. In this review, we first described extrusion-based Bio-AM. We highlighted the salient architectural and mechanotransduction parameters affecting the response of cells interfaced with the scaffolds. The process phenomena leading to defect formation and some of the tools for defect detection are reviewed. The limitations of the existing developments and the directions that the field should grow in order to overcome said limitations are discussed.
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Affiliation(s)
- Samuel Gerdes
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0526, United States
| | - Srikanthan Ramesh
- Department of Industrial and Systems Engineering, Rochester Institute of Technology, Rochester, New York. 14623, United States
| | - Azadeh Mostafavi
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0526, United States
| | - Ali Tamayol
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0526, United States.,Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, Connecticut 06269, United States
| | - Iris V Rivero
- Department of Industrial and Systems Engineering, Rochester Institute of Technology, Rochester, New York. 14623, United States.,Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, New York. 14623, United States
| | - Prahalada Rao
- Department of Mechanical and Materials Engineering, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0526, United States
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15
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Moncal KK, Gudapati H, Godzik KP, Heo DN, Kang Y, Rizk E, Ravnic DJ, Wee H, Pepley DF, Ozbolat V, Lewis GS, Moore JZ, Driskell RR, Samson TD, Ozbolat IT. Intra-Operative Bioprinting of Hard, Soft, and Hard/Soft Composite Tissues for Craniomaxillofacial Reconstruction. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2010858. [PMID: 34421475 PMCID: PMC8376234 DOI: 10.1002/adfm.202010858] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Indexed: 05/20/2023]
Abstract
Reconstruction of complex craniomaxillofacial (CMF) defects is challenging due to the highly organized layering of multiple tissue types. Such compartmentalization necessitates the precise and effective use of cells and other biologics to recapitulate the native tissue anatomy. In this study, intra-operative bioprinting (IOB) of different CMF tissues, including bone, skin, and composite (hard/soft) tissues, is demonstrated directly on rats in a surgical setting. A novel extrudable osteogenic hard tissue ink is introduced, which induced substantial bone regeneration, with ≈80% bone coverage area of calvarial defects in 6 weeks. Using droplet-based bioprinting, the soft tissue ink accelerated the reconstruction of full-thickness skin defects and facilitated up to 60% wound closure in 6 days. Most importantly, the use of a hybrid IOB approach is unveiled to reconstitute hard/soft composite tissues in a stratified arrangement with controlled spatial bioink deposition conforming the shape of a new composite defect model, which resulted in ≈80% skin wound closure in 10 days and 50% bone coverage area at Week 6. The presented approach will be absolutely unique in the clinical realm of CMF defects and will have a significant impact on translating bioprinting technologies into the clinic in the future.
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Affiliation(s)
- Kazim K Moncal
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Hemanth Gudapati
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, PA 16802, USA
| | - Kevin P Godzik
- Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Dong N Heo
- Department of Dental Materials, School of Dentistry, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Youngnam Kang
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Elias Rizk
- Department of Neurosurgery, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Dino J Ravnic
- Department of Surgery, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Hwabok Wee
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - David F Pepley
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Veli Ozbolat
- Mechanical Engineering Department, Ceyhan Engineering Faculty, Cukurova University, Adana 01950, Turkey
| | - Gregory S Lewis
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
| | - Jason Z Moore
- Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA
| | - Ryan R Driskell
- School of Molecular Biosciences, Washington State University, Pullman, WA 99164, USA
| | - Thomas D Samson
- Department of Neurosurgery, The Pennsylvania State University, Hershey, PA 17033, USA
| | - Ibrahim T Ozbolat
- Engineering Science and Mechanics, The Pennsylvania State University, University Park, PA 16802, USA
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Investigating the Viability of Epithelial Cells on Polymer Based Thin-Films. Polymers (Basel) 2021; 13:polym13142311. [PMID: 34301068 PMCID: PMC8309445 DOI: 10.3390/polym13142311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 12/23/2022] Open
Abstract
The development of novel polymer-based materials opens up possibilities for several novel applications, such as advanced wound dressings, bioinks for 3D biofabrication, drug delivery systems, etc. The aim of this study was to evaluate the viability of vascular and intestinal epithelial cells on different polymers as a selection procedure for more advanced cell-polymer applications. In addition, possible correlations between increased cell viability and material properties were investigated. Twelve polymers were selected, and thin films were prepared by dissolution and spin coating on silicon wafers. The prepared thin films were structurally characterized by Fourier transform infrared spectroscopy, atomic force microscopy, and goniometry. Their biocompatibility was determined using two epithelial cell lines (human umbilical vein endothelial cells and human intestinal epithelial cells), assessing the metabolic activity, cell density, and morphology. The tested cell lines showed different preferences regarding the culture substrate. No clear correlation was found between viability and individual substrate characteristics, suggesting that complex synergistic effects may play an important role in substrate design. These results show that a systematic approach is required to compare the biocompatibility of simple cell culture substrates as well as more complex applications (e.g., bioinks).
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La Gatta A, Tirino V, Cammarota M, La Noce M, Stellavato A, Pirozzi AVA, Portaccio M, Diano N, Laino L, Papaccio G, Schiraldi C. Gelatin-biofermentative unsulfated glycosaminoglycans semi-interpenetrating hydrogels via microbial-transglutaminase crosslinking enhance osteogenic potential of dental pulp stem cells. Regen Biomater 2021; 8:rbaa052. [PMID: 34211725 PMCID: PMC8240633 DOI: 10.1093/rb/rbaa052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 10/22/2020] [Accepted: 11/15/2020] [Indexed: 12/14/2022] Open
Abstract
Gelatin hydrogels by microbial-transglutaminase crosslinking are being increasingly exploited for tissue engineering, and proved high potential in bone regeneration. This study aimed to evaluate, for the first time, the combination of enzymatically crosslinked gelatin with hyaluronan and the newly developed biotechnological chondroitin in enhancing osteogenic potential. Gelatin enzymatic crosslinking was carried out in the presence of hyaluronan or of a hyaluronan–chondroitin mixture, obtaining semi-interpenetrating gels. The latter proved lower swelling extent and improved stiffness compared to the gelatin matrix alone, whilst maintaining high stability. The heteropolysaccharides were retained for 30 days in the hydrogels, thus influencing cell response over this period. To evaluate the effect of hydrogel composition on bone regeneration, materials were seeded with human dental pulp stem cells and osteogenic differentiation was assessed. The expression of osteocalcin (OC) and osteopontin (OPN), both at gene and protein level, was evaluated at 7, 15 and 30 days of culture. Scanning electron microscopy (SEM) and two-photon microscope observations were performed to assess bone-like extracellular matrix (ECM) deposition and to observe the cell penetration depth. In the presence of the heteropolysaccharides, OC and OPN expression was upregulated and a higher degree of calcified matrix formation was observed. Combination with hyaluronan and chondroitin improved both the biophysical properties and the biological response of enzymatically crosslinked gelatin, fastening bone deposition.
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Affiliation(s)
- Annalisa La Gatta
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Virginia Tirino
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Marcella Cammarota
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Marcella La Noce
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Antonietta Stellavato
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Anna Virginia Adriana Pirozzi
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Marianna Portaccio
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Nadia Diano
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Luigi Laino
- Dipartimento Multidisciplinare di Specialita' Medico-Chirurgiche e Odontoiatriche, via Luigi De Crecchio, 6, Napoli 80138, Italy
| | - Gianpaolo Papaccio
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
| | - Chiara Schiraldi
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", via L. De Crecchio 7, Naples 80138, Italy
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Lapomarda A, Pulidori E, Cerqueni G, Chiesa I, De Blasi M, Geven MA, Montemurro F, Duce C, Mattioli-Belmonte M, Tiné MR, Vozzi G, De Maria C. Pectin as Rheology Modifier of a Gelatin-Based Biomaterial Ink. MATERIALS (BASEL, SWITZERLAND) 2021; 14:3109. [PMID: 34198912 PMCID: PMC8201283 DOI: 10.3390/ma14113109] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/02/2021] [Accepted: 06/03/2021] [Indexed: 02/05/2023]
Abstract
Gelatin is a natural biopolymer extensively used for tissue engineering applications due to its similarities to the native extracellular matrix. However, the rheological properties of gelatin formulations are not ideal for extrusion-based bioprinting. In this work, we present an approach to improve gelatin bioprinting performances by using pectin as a rheology modifier of gelatin and (3-glycidyloxypropyl)trimethoxysilane (GPTMS) as a gelatin-pectin crosslinking agent. The preparation of gelatin-pectin formulations is initially optimized to obtain homogenous gelatin-pectin gels. Since the use of GPTMS requires a drying step to induce the completion of the crosslinking reaction, microporous gelatin-pectin-GPTMS sponges are produced through freeze-drying, and the intrinsic properties of gelatin-pectin-GPTMS networks (e.g., porosity, pore size, degree of swelling, compressive modulus, and cell adhesion) are investigated. Subsequently, rheological investigations together with bioprinting assessments demonstrate the key role of pectin in increasing the viscosity and the yield stress of low viscous gelatin solutions. Water stable, three-dimensional, and self-supporting gelatin-pectin-GPTMS scaffolds with interconnected micro- and macroporosity are successfully obtained by combining extrusion-based bioprinting and freeze-drying. The proposed biofabrication approach does not require any additional temperature controller to further modulate the rheological properties of gelatin solutions and it could furthermore be extended to improve the bioprintability of other biopolymers.
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Affiliation(s)
- Anna Lapomarda
- Research Center ‘E. Piaggio’, University of Pisa, via Diotisalvi, 1, 56122 Pisa, Italy; (I.C.); (F.M.); (G.V.); (C.D.M.)
- Department of Ingegneria dell’Informazione, University of Pisa, via Girolamo Caruso, 16, 56122 Pisa, Italy;
| | - Elena Pulidori
- Department of Chemistry and Industrial Chemistry, University of Pisa, via G. Moruzzi 13, 56124 Pisa, Italy; (E.P.); (C.D.); (M.R.T.)
| | - Giorgia Cerqueni
- Department of Scienze Cliniche e Molecolari, Università Politecnica delle Marche, via Tronto 10/A, 60121 Ancona, Italy; (G.C.); (M.M.-B.)
| | - Irene Chiesa
- Research Center ‘E. Piaggio’, University of Pisa, via Diotisalvi, 1, 56122 Pisa, Italy; (I.C.); (F.M.); (G.V.); (C.D.M.)
- Department of Ingegneria dell’Informazione, University of Pisa, via Girolamo Caruso, 16, 56122 Pisa, Italy;
| | - Matteo De Blasi
- Department of Ingegneria dell’Informazione, University of Pisa, via Girolamo Caruso, 16, 56122 Pisa, Italy;
| | - Mike Alexander Geven
- Laboratory of Polymers and Biomaterials, Istituto Italiano di Tecnologia, via Morego 30, 16163 Genova, Italy;
| | - Francesca Montemurro
- Research Center ‘E. Piaggio’, University of Pisa, via Diotisalvi, 1, 56122 Pisa, Italy; (I.C.); (F.M.); (G.V.); (C.D.M.)
| | - Celia Duce
- Department of Chemistry and Industrial Chemistry, University of Pisa, via G. Moruzzi 13, 56124 Pisa, Italy; (E.P.); (C.D.); (M.R.T.)
| | - Monica Mattioli-Belmonte
- Department of Scienze Cliniche e Molecolari, Università Politecnica delle Marche, via Tronto 10/A, 60121 Ancona, Italy; (G.C.); (M.M.-B.)
| | - Maria Rosaria Tiné
- Department of Chemistry and Industrial Chemistry, University of Pisa, via G. Moruzzi 13, 56124 Pisa, Italy; (E.P.); (C.D.); (M.R.T.)
| | - Giovanni Vozzi
- Research Center ‘E. Piaggio’, University of Pisa, via Diotisalvi, 1, 56122 Pisa, Italy; (I.C.); (F.M.); (G.V.); (C.D.M.)
- Department of Ingegneria dell’Informazione, University of Pisa, via Girolamo Caruso, 16, 56122 Pisa, Italy;
| | - Carmelo De Maria
- Research Center ‘E. Piaggio’, University of Pisa, via Diotisalvi, 1, 56122 Pisa, Italy; (I.C.); (F.M.); (G.V.); (C.D.M.)
- Department of Ingegneria dell’Informazione, University of Pisa, via Girolamo Caruso, 16, 56122 Pisa, Italy;
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Pedroza-González SC, Rodriguez-Salvador M, Pérez-Benítez BE, Alvarez MM, Santiago GTD. Bioinks for 3D Bioprinting: A Scientometric Analysis of Two Decades of Progress. Int J Bioprint 2021; 7:333. [PMID: 34007938 PMCID: PMC8126700 DOI: 10.18063/ijb.v7i2.337] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/04/2021] [Indexed: 02/07/2023] Open
Abstract
This scientometric analysis of 393 original papers published from January 2000 to June 2019 describes the development and use of bioinks for 3D bioprinting. The main trends for bioink applications and the primary considerations guiding the selection and design of current bioink components (i.e., cell types, hydrogels, and additives) were reviewed. The cost, availability, practicality, and basic biological considerations (e.g., cytocompatibility and cell attachment) are the most popular parameters guiding bioink use and development. Today, extrusion bioprinting is the most widely used bioprinting technique. The most reported use of bioinks is the generic characterization of bioink formulations or bioprinting technologies (32%), followed by cartilage bioprinting applications (16%). Similarly, the cell-type choice is mostly generic, as cells are typically used as models to assess bioink formulations or new bioprinting methodologies rather than to fabricate specific tissues. The cell-binding motif arginine-glycine-aspartate is the most common bioink additive. Many articles reported the development of advanced functional bioinks for specific biomedical applications; however, most bioinks remain the basic compositions that meet the simple criteria: Manufacturability and essential biological performance. Alginate and gelatin methacryloyl are the most popular hydrogels that meet these criteria. Our analysis suggests that present-day bioinks still represent a stage of emergence of bioprinting technology.
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Affiliation(s)
- Sara Cristina Pedroza-González
- Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Monterrey, NL, 64849, Mexico
- Departamento de Ingeniería Mecatrónica y Eléctrica, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Monterrey, NL, 64849, Mexico
| | | | | | - Mario Moisés Alvarez
- Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Monterrey, NL, 64849, Mexico
- Departamento de Bioingeniería, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Monterrey, NL, Mexico 64849
| | - Grissel Trujillo-de Santiago
- Centro de Biotecnología-FEMSA, Tecnologico de Monterrey, Monterrey, NL, 64849, Mexico
- Departamento de Ingeniería Mecatrónica y Eléctrica, Escuela de Ingeniería y Ciencias, Tecnologico de Monterrey, Monterrey, NL, 64849, Mexico
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Pantermehl S, Emmert S, Foth A, Grabow N, Alkildani S, Bader R, Barbeck M, Jung O. 3D Printing for Soft Tissue Regeneration and Applications in Medicine. Biomedicines 2021; 9:biomedicines9040336. [PMID: 33810541 PMCID: PMC8066192 DOI: 10.3390/biomedicines9040336] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/16/2021] [Accepted: 03/23/2021] [Indexed: 02/07/2023] Open
Abstract
The use of additive manufacturing (AM) technologies is a relatively young research area in modern medicine. This technology offers a fast and effective way of producing implants, tissues, or entire organs individually adapted to the needs of a patient. Today, a large number of different 3D printing technologies with individual application areas are available. This review is intended to provide a general overview of these various printing technologies and their function for medical use. For this purpose, the design and functionality of the different applications are presented and their individual strengths and weaknesses are explained. Where possible, previous studies using the respective technologies in the field of tissue engineering are briefly summarized.
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Affiliation(s)
- Sven Pantermehl
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (S.E.); (A.F.); (O.J.)
| | - Steffen Emmert
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (S.E.); (A.F.); (O.J.)
| | - Aenne Foth
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (S.E.); (A.F.); (O.J.)
| | - Niels Grabow
- Institute for Biomedical Engineering, University Medical Center Rostock, 18119 Rostock, Germany;
| | | | - Rainer Bader
- Clinic and Policlinic for Orthopedics, University Medical Center Rostock, 18057 Rostock, Germany;
| | - Mike Barbeck
- BerlinAnalytix GmbH, 12109 Berlin, Germany;
- Department of Ceramic Materials, Chair of Advanced Ceramic Materials, Institute for Materials Science and Technologies, Technical University Berlin, 10623 Berlin, Germany
- Correspondence: ; Tel.: +49-(0)-17681022467
| | - Ole Jung
- Clinic and Policlinic for Dermatology and Venereology, University Medical Center Rostock, 18057 Rostock, Germany; (S.P.); (S.E.); (A.F.); (O.J.)
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21
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A Review of 3-Dimensional Skin Bioprinting Techniques: Applications, Approaches, and Trends. Dermatol Surg 2021; 46:1500-1505. [PMID: 32205755 DOI: 10.1097/dss.0000000000002378] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Tissue engineering is used to fabricate 3-dimensional (3D) artificial scaffolds to create a microenvironment that mimics human tissue. Bioprinting uses biomaterials, cells, and/or bioink to fabricate prospective scaffolds to mirror the structural, compositional, and functional aspects of the skin. Various bioprinting methods (inkjet-based bioprinting, pressure-assisted bioprinting, and laser-assisted bioprinting) have been used for regenerative wound repair and have been characterized based on biocompatibility, cellular microenvironment, cell proliferation, vitality, and morphology. OBJECTIVE This article reviews the basic principles of 3D printing, current 3D skin bioprinting applications and approaches, and future directions for regenerative medical skin constructs. METHODS A comprehensive literature review was conducted using PubMed with keywords "three-dimensional printing," "dermatologic surgery," "bioprinting," "reconstructive surgical procedures," "wound healing," "skin grafts," "skin scaffolds," "tissue reconstruction," and "tissue engineering." RESULTS A summary of the different applications and 3-dimensional skin bioprinting techniques is presented. In addition, synthetic, natural, and combination polymers are reviewed. Advantages, disadvantages, indications, and approaches are discussed in depth. CONCLUSION Skin grafting is a dynamic technique of dermal reconstruction that can be successful with comprehensive knowledge of skin bioprinting methods.
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22
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Shahbazi M, Jäger H. Current Status in the Utilization of Biobased Polymers for 3D Printing Process: A Systematic Review of the Materials, Processes, and Challenges. ACS APPLIED BIO MATERIALS 2021; 4:325-369. [PMID: 35014287 DOI: 10.1021/acsabm.0c01379] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Three-dimensional (3D) printing is a revolutionary additive manufacturing technique that allows rapid prototyping of objects with intricate architectures. This Review covers the recent state-of-the-art of biopolymers (protein and carbohydrate-based materials) application in pharmaceutical, bioengineering, and food printing and main reinforcement approaches of biomacromolecular structure for the development of 3D constructs. Some perspectives and main important limitations with the biomaterials utilization for advanced 3D printing procedures are also provided. Because of the improved the ink's flow behavior and enhance the mechanical strength of resulting printed architectures, biopolymers are the most used materials for 3D printing applications. Biobased polymers by taking advantage of modifying the ink viscosity could improve the resolution of deposited layers, printing precision, and consequently, develop well-defined geometries. In this regard, the rheological properties of printable biopolymeric-based inks and factors affecting ink flow behavior related to structural properties of printed constructs are discussed. On the basis of successful applications of biopolymers in 3D printing, it is suggested that other biomacromolecules and nanoparticles combined with the matrix can be introduced into the ink dispersions to enhance the multifunctionality of 3D structures. Furthermore, tuning the biopolymer's structural properties offers the most common and essential approach to attain the printed architectures with precisely tailored geometry. We finish the Review by giving a viewpoint of the upcoming 3D printing process and recognize some of the existing bottlenecks facing the blossoming 3D pharmaceutical, bioengineering, and food printing applications.
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Affiliation(s)
- Mahdiyar Shahbazi
- Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Muthgasse 18, 1190 Vienna, Austria
| | - Henry Jäger
- Institute of Food Technology, University of Natural Resources and Life Sciences (BOKU), Muthgasse 18, 1190 Vienna, Austria
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Vanaei S, Parizi M, Vanaei S, Salemizadehparizi F, Vanaei H. An Overview on Materials and Techniques in 3D Bioprinting Toward Biomedical Application. ENGINEERED REGENERATION 2021. [DOI: 10.1016/j.engreg.2020.12.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Belk L, Tellisi N, Macdonald H, Erdem A, Ashammakhi N, Pountos I. Safety Considerations in 3D Bioprinting Using Mesenchymal Stromal Cells. Front Bioeng Biotechnol 2020; 8:924. [PMID: 33154961 PMCID: PMC7588840 DOI: 10.3389/fbioe.2020.00924] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 07/17/2020] [Indexed: 12/26/2022] Open
Abstract
Three-dimensional (3D) bioprinting has demonstrated great potential for the fabrication of biomimetic human tissues and complex graft materials. This technology utilizes bioinks composed of cellular elements placed within a biomaterial. Mesenchymal stromal cells (MSCs) are an attractive option for cell selection in 3D bioprinting. MSCs can be isolated from a variety of tissues, can pose vast proliferative capacity and can differentiate to multiple committed cell types. Despite their promising properties, the use of MSCs has been associated with several drawbacks. These concerns are related to the ex vivo manipulation throughout the process of 3D bioprinting. The herein manuscript aims to present the current evidence surrounding these events and propose ways to minimize the risks to the patients following widespread expansion of 3D bioprinting in the medical field.
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Affiliation(s)
- Lucy Belk
- Academic Department of Trauma and Orthopaedics, University of Leeds, Leeds, United Kingdom
- School of Medicine, University of Leeds, Leeds, United Kingdom
| | - Nazzar Tellisi
- Academic Department of Trauma and Orthopaedics, University of Leeds, Leeds, United Kingdom
- School of Medicine, University of Leeds, Leeds, United Kingdom
- Chapel Allerton Hospital, Leeds Teaching Hospitals, Leeds, United Kingdom
| | - Hamish Macdonald
- Gloucester Royal Hospital, Gloucestershire Hospitals NHS Foundation Trust, Gloucester, United Kingdom
| | - Ahmet Erdem
- Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Chemistry, Kocaeli University, Kocaeli, Turkey
- Department of Biomedical Engineering, Kocaeli University, Kocaeli, Turkey
| | - Nureddin Ashammakhi
- Center for Minimally Invasive Therapeutics, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Bioengineering, Henry Samueli School of Engineering, University of California, Los Angeles, Los Angeles, CA, United States
- Department of Radiological Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI, United States
- Department of Biomedical Engineering, Michigan State University, East Lansing, MI, United States
| | - Ippokratis Pountos
- Academic Department of Trauma and Orthopaedics, University of Leeds, Leeds, United Kingdom
- School of Medicine, University of Leeds, Leeds, United Kingdom
- Chapel Allerton Hospital, Leeds Teaching Hospitals, Leeds, United Kingdom
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25
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Adhikari J, Roy A, Das A, Ghosh M, Thomas S, Sinha A, Kim J, Saha P. Effects of Processing Parameters of 3D Bioprinting on the Cellular Activity of Bioinks. Macromol Biosci 2020; 21:e2000179. [PMID: 33017096 DOI: 10.1002/mabi.202000179] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 12/14/2022]
Abstract
In this review, few established cell printing techniques along with their parameters that affect the cell viability during bioprinting are considered. 3D bioprinting is developed on the principle of additive manufacturing using biomaterial inks and bioinks. Different bioprinting methods impose few challenges on cell printing such as shear stress, mechanical impact, heat, laser radiation, etc., which eventually lead to cell death. These factors also cause alteration of cells phenotype, recoverable or irrecoverable damages to the cells. Such challenges are not addressed in detail in the literature and scientific reports. Hence, this review presents a detailed discussion of several cellular bioprinting methods and their process-related impacts on cell viability, followed by probable mitigation techniques. Most of the printable bioinks encompass cells within hydrogel as scaffold material to avoid the direct exposure of the harsh printing environment on cells. However, the advantages of printing with scaffold-free cellular aggregates over cell-laden hydrogels have emerged very recently. Henceforth, optimal and favorable crosslinking mechanisms providing structural rigidity to the cell-laden printed constructs with ideal cell differentiation and proliferation, are discussed for improved understanding of cell printing methods for the future of organ printing and transplantation.
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Affiliation(s)
- Jaideep Adhikari
- J. Adhikari, A. Das, Dr. A. Sinha, M. N. Dastur School of Materials Science and Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, India
| | - Avinava Roy
- A. Roy, Dr. M. Ghosh, Department of Metallurgy and Materials Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, India
| | - Anindya Das
- J. Adhikari, A. Das, Dr. A. Sinha, M. N. Dastur School of Materials Science and Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, India
| | - Manojit Ghosh
- A. Roy, Dr. M. Ghosh, Department of Metallurgy and Materials Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, India
| | - Sabu Thomas
- Prof. S. Thomas, School of Chemical Sciences, MG University, Kottayam, Kerala, 686560, India
| | - Arijit Sinha
- J. Adhikari, A. Das, Dr. A. Sinha, M. N. Dastur School of Materials Science and Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, 711103, India
| | - Jinku Kim
- Prof. J. Kim, Department of Bio and Chemical Engineering, Hongik University, Sejong, 30016, South Korea
| | - Prosenjit Saha
- Dr. P. Saha, Centre for Interdisciplinary Sciences, JIS Institute of Advanced Studies and Research (JISIASR) Kolkata, JIS University, Arch Water Front Building, Salt Lake City, Kolkata, 700091, India
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Ramesh S, Kovelakuntla V, Meyer AS, Rivero IV. Three-dimensional printing of stimuli-responsive hydrogel with antibacterial activity. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.bprint.2020.e00106] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ghorbani F, Li D, Zhong Z, Sahranavard M, Qian Z, Ni S, Zhang Z, Zamanian A, Yu B. Bioprinting a cell‐laden matrix for bone regeneration: A focused review. J Appl Polym Sci 2020. [DOI: 10.1002/app.49888] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Farnaz Ghorbani
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
| | - Dejian Li
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
| | - Zeyuan Zhong
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
| | - Melika Sahranavard
- Department of Nanotechnology and Advanced Materials Materials and Energy Research Center Karaj Iran
| | - Zhi Qian
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
| | - Shuo Ni
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
| | - Zhenhua Zhang
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
- School of Materials Science and Engineering University of Shanghai for Science and Technology Shanghai China
| | - Ali Zamanian
- Department of Nanotechnology and Advanced Materials Materials and Energy Research Center Karaj Iran
| | - Baoqing Yu
- Department of Orthopedics, Shanghai Pudong Hospital Fudan University Pudong Medical Center Shanghai China
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28
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Tan JJY, Lee CP, Hashimoto M. Preheating of Gelatin Improves its Printability with Transglutaminase in Direct Ink Writing 3D Printing. Int J Bioprint 2020; 6:296. [PMID: 33088999 PMCID: PMC7557522 DOI: 10.18063/ijb.v6i4.296] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/07/2020] [Indexed: 02/06/2023] Open
Abstract
Gelatin and transglutaminase (TG) ink is increasingly popular in direct ink writing three-dimensional (3D) printing of cellular scaffolds and edible materials. The use of enzymes to crosslink gelatin chains removes the needs for toxic crosslinkers and bypasses undesired side reactions due to the specificity of the enzymes. However, their application in 3D printing remains challenging primarily due to the rapid crosslinking that leads to the short duration of printable time. In this work, we propose the use of gelatin preheated for 7 days to extend the duration of the printing time of the gelatin ink. We first determined the stiffness of freshly prepared gelatin (FG) and preheated gelatin (PG) (5 – 20% w/w) containing 5% w/w TG. We selected gelatin hydrogels made from 7.5% w/w FG and 10% w/w PG that yielded similar stiffness for subsequent studies to determine the duration of the printable time. PG inks exhibited longer time required for gelation and a smaller increase in viscosity with time than FG inks of similar stiffness. Our study suggested the advantage to preheat gelatin to enhance the printability of the ink, which is essential for extrusion-based bioprinting and food printing.
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Affiliation(s)
- Justin Jia Yao Tan
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore.,SUTD-MIT International Design Centre, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Cheng Pau Lee
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore.,SUTD-MIT International Design Centre, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
| | - Michinao Hashimoto
- Pillar of Engineering Product Development, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore.,SUTD-MIT International Design Centre, Singapore University of Technology and Design, 8 Somapah Road, Singapore 487372, Singapore
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29
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Hydrogels for Efficient Multiplex PCR. BIOTECHNOL BIOPROC E 2020. [DOI: 10.1007/s12257-020-0134-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Mancha Sánchez E, Gómez-Blanco JC, López Nieto E, Casado JG, Macías-García A, Díaz Díez MA, Carrasco-Amador JP, Torrejón Martín D, Sánchez-Margallo FM, Pagador JB. Hydrogels for Bioprinting: A Systematic Review of Hydrogels Synthesis, Bioprinting Parameters, and Bioprinted Structures Behavior. Front Bioeng Biotechnol 2020; 8:776. [PMID: 32850697 PMCID: PMC7424022 DOI: 10.3389/fbioe.2020.00776] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 06/18/2020] [Indexed: 12/23/2022] Open
Abstract
Nowadays, bioprinting is rapidly evolving and hydrogels are a key component for its success. In this sense, synthesis of hydrogels, as well as bioprinting process, and cross-linking of bioinks represent different challenges for the scientific community. A set of unified criteria and a common framework are missing, so multidisciplinary research teams might not efficiently share the advances and limitations of bioprinting. Although multiple combinations of materials and proportions have been used for several applications, it is still unclear the relationship between good printability of hydrogels and better medical/clinical behavior of bioprinted structures. For this reason, a PRISMA methodology was conducted in this review. Thus, 1,774 papers were retrieved from PUBMED, WOS, and SCOPUS databases. After selection, 118 papers were analyzed to extract information about materials, hydrogel synthesis, bioprinting process, and tests performed on bioprinted structures. The aim of this systematic review is to analyze materials used and their influence on the bioprinting parameters that ultimately generate tridimensional structures. Furthermore, a comparison of mechanical and cellular behavior of those bioprinted structures is presented. Finally, some conclusions and recommendations are exposed to improve reproducibility and facilitate a fair comparison of results.
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Affiliation(s)
- Enrique Mancha Sánchez
- Bioengineering and Health Technologies Unit, Minimally Invasive Surgery Centre Jesús Usón, Cáceres, Spain
| | - J. Carlos Gómez-Blanco
- Bioengineering and Health Technologies Unit, Minimally Invasive Surgery Centre Jesús Usón, Cáceres, Spain
| | - Esther López Nieto
- Stem Cells Unit, Minimally Invasive Surgery Centre Jesús Usón, Cáceres, Spain
| | - Javier G. Casado
- Stem Cells Unit, Minimally Invasive Surgery Centre Jesús Usón, Cáceres, Spain
| | | | - María A. Díaz Díez
- School of Industrial Engineering, University of Extremadura, Badajoz, Spain
| | | | | | | | - J. Blas Pagador
- Bioengineering and Health Technologies Unit, Minimally Invasive Surgery Centre Jesús Usón, Cáceres, Spain
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31
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Soman SS, Vijayavenkataraman S. Applications of 3D Bioprinted-Induced Pluripotent Stem Cells in Healthcare. Int J Bioprint 2020; 6:280. [PMID: 33088994 PMCID: PMC7557348 DOI: 10.18063/ijb.v6i4.280] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 06/24/2020] [Indexed: 12/12/2022] Open
Abstract
Induced pluripotent stem cell (iPSC) technology and advancements in three-dimensional (3D) bioprinting technology enable scientists to reprogram somatic cells to iPSCs and 3D print iPSC-derived organ constructs with native tissue architecture and function. iPSCs and iPSC-derived cells suspended in hydrogels (bioinks) allow to print tissues and organs for downstream medical applications. The bioprinted human tissues and organs are extremely valuable in regenerative medicine as bioprinting of autologous iPSC-derived organs eliminates the risk of immune rejection with organ transplants. Disease modeling and drug screening in bioprinted human tissues will give more precise information on disease mechanisms, drug efficacy, and drug toxicity than experimenting on animal models. Bioprinted iPSC-derived cancer tissues will aid in the study of early cancer development and precision oncology to discover patient-specific drugs. In this review, we present a brief summary of the combined use of two powerful technologies, iPSC technology, and 3D bioprinting in health-care applications.
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Affiliation(s)
- Soja Saghar Soman
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE
| | - Sanjairaj Vijayavenkataraman
- Division of Engineering, New York University Abu Dhabi, Abu Dhabi, UAE.,Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, New York University, NY, USA
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32
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Gandolfi F, Ghiringhelli M, Brevini TA. Bioengineering the ovary to preserve and reestablish female fertility. Anim Reprod 2020; 16:45-51. [PMID: 33299478 PMCID: PMC7721072 DOI: 10.21451/1984-3143-ar2018-0099] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/04/2018] [Indexed: 11/06/2022] Open
Abstract
Different bioengineering strategies can be presently adopted and have been shown to have great potential in the treatment of female infertility and ovarian dysfunction deriving from chemotherapy, congenital malformations, massive adhesions as well as aging and lifestyle. One option is transplantation of fresh or cryopreserved organs/fragments into the patient. A further possibility uses tissue engineering approaches that involve a combination of cells, biomaterials and factors that stimulate local ability to regenerate/ repair the reproductive organ. Organ transplant has shown promising results in large animal models. However, the source of the organ needs to be identified and the immunogenic effects of allografts remain still to be solved before the technology may enter the clinical practice. Decellularization/ repopulation of ovary with autologous cells or follicles could represent an interesting, still very experimental alternative. Here we summarize the recent advancements in the bioengineering strategies applied to the ovary, we present the principles for these systems and discuss the advantages of these emerging opportunities to preserve or improve female fertility.
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Affiliation(s)
- Fulvio Gandolfi
- Department of Agricultural and Environmental Sciences - Production, Landscape, Agroenergy, Università degli Studi di Milano, Milano 20122, Italy.
| | - Matteo Ghiringhelli
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Milano 20122, Italy.
| | - Tiziana A.L. Brevini
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Milano 20122, Italy.
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Li Z, Ramos A, Li MC, Li Z, Bhatta S, Jeyaseelan A, Li Y, Wu Q, Yao S, Xu J. Improvement of cell deposition by self-absorbent capability of freeze-dried 3D-bioprinted scaffolds derived from cellulose material-alginate hydrogels. Biomed Phys Eng Express 2020; 6:045009. [PMID: 33444270 DOI: 10.1088/2057-1976/ab8fc6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Cell-laden printing is the most commonly used approach in 3D bioprinting. One of the major drawbacks of cell-laden printing is that cell viability is highly affected by the extrusion pressure and shear force in the printing process. We present a new cell-deposition method by using the superabsorbent capability of 3D printed scaffolds with four ink formations: 20:10 nanocrystal/alginate (NCA 20/10), 20:10 nanofiber/alginate (NFA 20/10), 20:02 nanocrystal/alginate (NCA 20/02) and 20:02 nanofiber/alginate (NFA 20/02). Limited pores were observed from the surface of inherent NCA and NFA scaffolds, which may limit the numbers of cells to enter into the scaffolds. Therefore, we designed a dual-porous (DP) structure to connect the inherent pores (IPs) to the scaffold surface. Due to these porous structures, NCA and NFA scaffolds exhibit an excellent capability to absorb cell suspension, which may be used for depositing cells to 3D-printed scaffolds, namely self-absorbent (SA) deposition. Compared to the conventional top-loading (TL) method, the SA method had more uniform cell distributions in the entire 3D-printed scaffolds and higher efficiency of cell deposition. For the TL method, DP scaffold exhibited a more uniform cell distribution, which may provide a better microenvironment for the cells in comparison to the IP scaffold. For both cell loading methods, a rapid increase of cell number was observed in the first 4 days of culture in the 3D-printed NCA and NFA structures. NFA 20/02 exhibits the best cell viability compared to the other three inks. In conclusion, the SA method may serve as a new approach for loading cells in cell-free 3D-bioprinting, and DP design could improve the efficiency of the cell deposition.
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Affiliation(s)
- Zhongqiang Li
- Division of Electrical and Computer Engineering, College of Engineering, Louisiana State University, Baton Rouge, LA 70803, United States of America
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Compaan AM, Song K, Chai W, Huang Y. Cross-Linkable Microgel Composite Matrix Bath for Embedded Bioprinting of Perfusable Tissue Constructs and Sculpting of Solid Objects. ACS APPLIED MATERIALS & INTERFACES 2020; 12:7855-7868. [PMID: 31948226 DOI: 10.1021/acsami.9b15451] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Tissue engineering is a rapidly growing field, which requires advanced fabrication technologies to generate cell-laden tissue analogues with a wide range of internal and external physical features including perfusable channels, cavities, custom shapes, and spatially varying material and/or cell compositions. A versatile embedded printing methodology is proposed in this work for creating custom biomedical acellular and cell-laden hydrogel constructs by utilizing a biocompatible microgel composite matrix bath. A sacrificial material is patterned within a biocompatible hydrogel precursor matrix bath using extrusion printing to create three-dimensional features; after printing, the matrix bath is cross-linked, and the sacrificial material is flushed away to create perfusable channels within the bulk composite hydrogel matrix. The composite matrix bath material consists of jammed cross-linked hydrogel microparticles (microgels) to control rheology during fabrication along with a fluid hydrogel precursor, which is cross-linked after fabrication to form the continuous phase of the composite hydrogel. For demonstration, gellan or enzymatically cross-linked gelatin microgels are utilized with a continuous gelatin hydrogel precursor solution to make the composite matrix bath herein; the composite hydrogel matrix is formed by cross-linking the continuous gelatin phase enzymatically after printing. A variety of features including discrete channels, junctions, networks, and external contours are fabricated in the proposed composite matrix bath using embedded printing. Cell-laden constructs with printed features are also evaluated; the microgel composite hydrogel matrices support cell activity, and printed channels enhance proliferation compared to solid constructs even in static culture. The proposed method can be expanded as a solid object sculpting method to sculpt external contours by printing a shell of sacrificial ink and further discarding excess composite hydrogel matrix after printing and cross-linking. While aqueous alginate solution is used as a sacrificial ink, more advanced sacrificial materials can be utilized for better printing resolution.
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Affiliation(s)
- Ashley M Compaan
- Department of Materials Science and Engineering , University of Florida , Gainesville , Florida 32611 , United States
- Novabone Products, LLC , 13510 NW US Highway 441 , Alachua , Florida 32615 , United States
| | - Kaidong Song
- Department of Mechanical and Aerospace Engineering , University of Florida , Gainesville , Florida 32611 , United States
| | - Wenxuan Chai
- Department of Mechanical and Aerospace Engineering , University of Florida , Gainesville , Florida 32611 , United States
| | - Yong Huang
- Department of Materials Science and Engineering , University of Florida , Gainesville , Florida 32611 , United States
- Department of Mechanical and Aerospace Engineering , University of Florida , Gainesville , Florida 32611 , United States
- Department of Biomedical Engineering , University of Florida , Gainesville , Florida 32611 , United States
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35
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Contessi Negrini N, Celikkin N, Tarsini P, Farè S, Święszkowski W. Three-dimensional printing of chemically crosslinked gelatin hydrogels for adipose tissue engineering. Biofabrication 2020; 12:025001. [DOI: 10.1088/1758-5090/ab56f9] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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36
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Review transglutaminases: part II-industrial applications in food, biotechnology, textiles and leather products. World J Microbiol Biotechnol 2019; 36:11. [PMID: 31879822 DOI: 10.1007/s11274-019-2792-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 12/20/2019] [Indexed: 12/20/2022]
Abstract
Because of their protein cross-linking properties, transglutaminases are widely used in several industrial processes, including the food and pharmaceutical industries. Transglutaminases obtained from animal tissues and organs, the first sources of this enzyme, are being replaced by microbial sources, which are cheaper and easier to produce and purify. Since the discovery of microbial transglutaminase (mTGase), the enzyme has been produced for industrial applications by traditional fermentation process using the bacterium Streptomyces mobaraensis. Several studies have been carried out in this field to increase the enzyme industrial productivity. Researches on gene expression encoding transglutaminase biosynthesis were performed in Streptomyces lividans, Escherichia coli, Corynebacterium glutamicum, Yarrowia lipolytica, and Pichia pastoris. In the first part of this review, we presented an overview of the literature on the origins, types, mediated reactions, and general characterizations of these important enzymes, as well as the studies on recombinant microbial transglutaminases. In this second part, we focus on the application versatility of mTGase in three broad areas: food, pharmacological, and biotechnological industries. The use of mTGase is presented for several food groups, showing possibilities of applications and challenges to further improve the quality of the end-products. Some applications in the textile and leather industries are also reviewed, as well as special applications in the PEGylation reaction, in the production of antibody drug conjugates, and in regenerative medicine.
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37
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Optimization of 3D bioprinting of periodontal ligament cells. Dent Mater 2019; 35:1683-1694. [PMID: 31601443 DOI: 10.1016/j.dental.2019.08.114] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 07/23/2019] [Accepted: 08/31/2019] [Indexed: 11/22/2022]
Abstract
Three-dimensional (3D) bioprinting of cells is an emerging area of research but has been not explored yet in the context of periodontal tissue engineering. OBJECTIVE This study reports on the optimisation of the 3D bioprinting of periodontal ligament cells for potential application in periodontal regeneration. METHODS We systematically investigated the printability of various concentrations of gelatin methacryloyl (GelMA) hydrogel precursor using a microextrusion based three-dimensional (3D) printer. The influence of different printing parameters such as photoinitiator concentration, UV exposure, pressure and dispensing needle diameter on the viability of periodontal ligament cells encapsulated within the 3D bioprinted construct were subsequently assessed. RESULTS This systematic evaluation enabled the selection of the most suited printing conditions for achieving high printing resolution, dimensional stability and cell viability for 3D bioprinting of periodontal ligament cells. SIGNIFICANCE The optimised bioprinting system is the first step towards to the reproducible manufacturing of cell laden, space maintaining scaffolds for the treatment of periodontal lesions.
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39
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Effect of cross-linking on the dimensional stability and biocompatibility of a tailored 3D-bioprinted gelatin scaffold. Int J Biol Macromol 2019; 135:659-667. [DOI: 10.1016/j.ijbiomac.2019.05.207] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 05/27/2019] [Accepted: 05/28/2019] [Indexed: 12/12/2022]
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40
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Kahl M, Gertig M, Hoyer P, Friedrich O, Gilbert DF. Ultra-Low-Cost 3D Bioprinting: Modification and Application of an Off-the-Shelf Desktop 3D-Printer for Biofabrication. Front Bioeng Biotechnol 2019; 7:184. [PMID: 31417899 PMCID: PMC6684753 DOI: 10.3389/fbioe.2019.00184] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 07/15/2019] [Indexed: 01/01/2023] Open
Abstract
3D bioprinting has become a versatile and powerful method in tissue engineering and regenerative medicine and is increasingly adapted by other disciplines due to its tremendous potential beyond its typical applications. However, commercially available 3D bioprinting systems are typically expensive circumventing the broad implementation, including laboratories in low-resource settings. To address the limitations of conventional and commercially available technology, we developed a 3D bioprinter by modification of an off-the-shelf 3D desktop printer, that can be installed within a single day, is of handy size to fit into a standard laminar flow hood, customizable, ultra-low cost and thus, affordable to a broad range of research labs, or educational institutions. We evaluate accuracy and reproducibility of printing results using alginate and alginate/gelatin-hydrogels and demonstrate its potential for biomedical use by printing of various two-and three-dimensional cell-free and mammalian cell-laden objects using recombinant HEKYFP cells, stably expressing yellow fluorescent protein (YFP) as a model system and high-content imaging. We further provide a parts list and 3D design files in STL and STEP format for reconstructing the device. A time-lapse video of the custom-built device during operation is available at https://vimeo.com/274482794.
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Affiliation(s)
- Melanie Kahl
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Markus Gertig
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Phillipp Hoyer
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Daniel F Gilbert
- Institute of Medical Biotechnology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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41
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Puluca N, Lee S, Doppler S, Münsterer A, Dreßen M, Krane M, Wu SM. Bioprinting Approaches to Engineering Vascularized 3D Cardiac Tissues. Curr Cardiol Rep 2019; 21:90. [PMID: 31352612 PMCID: PMC7340624 DOI: 10.1007/s11886-019-1179-8] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE OF REVIEW 3D bioprinting technologies hold significant promise for the generation of engineered cardiac tissue and translational applications in medicine. To generate a clinically relevant sized tissue, the provisioning of a perfusable vascular network that provides nutrients to cells in the tissue is a major challenge. This review summarizes the recent vascularization strategies for engineering 3D cardiac tissues. RECENT FINDINGS Considerable steps towards the generation of macroscopic sizes for engineered cardiac tissue with efficient vascular networks have been made within the past few years. Achieving a compact tissue with enough cardiomyocytes to provide functionality remains a challenging task. Achieving perfusion in engineered constructs with media that contain oxygen and nutrients at a clinically relevant tissue sizes remains the next frontier in tissue engineering. The provisioning of a functional vasculature is necessary for maintaining a high cell viability and functionality in engineered cardiac tissues. Several recent studies have shown the ability to generate tissues up to a centimeter scale with a perfusable vascular network. Future challenges include improving cell density and tissue size. This requires the close collaboration of a multidisciplinary teams of investigators to overcome complex challenges in order to achieve success.
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Affiliation(s)
- Nazan Puluca
- Division of Cardiovascular Medicine, Department of Medicine; Institute of Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Room G1120A, Lokey Stem Cell Building, 265 Campus Drive, Stanford, CA, 94305, USA
- Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- Insure (Institute for Translational Cardiac Surgery) Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Soah Lee
- Division of Cardiovascular Medicine, Department of Medicine; Institute of Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Room G1120A, Lokey Stem Cell Building, 265 Campus Drive, Stanford, CA, 94305, USA
- Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Stefanie Doppler
- Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- Insure (Institute for Translational Cardiac Surgery) Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
| | - Andrea Münsterer
- Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- Insure (Institute for Translational Cardiac Surgery) Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
| | - Martina Dreßen
- Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- Insure (Institute for Translational Cardiac Surgery) Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
| | - Markus Krane
- Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- Insure (Institute for Translational Cardiac Surgery) Department of Cardiovascular Surgery, German Heart Center Munich, Technische Universität München, Munich, Germany
- German Heart Center Munich-DZHK Partner Site Munich Heart Alliance, Munich, Germany
| | - Sean M Wu
- Division of Cardiovascular Medicine, Department of Medicine; Institute of Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Room G1120A, Lokey Stem Cell Building, 265 Campus Drive, Stanford, CA, 94305, USA.
- Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, 94305, USA.
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He C, Zhang M, Fang Z. 3D printing of food: pretreatment and post-treatment of materials. Crit Rev Food Sci Nutr 2019; 60:2379-2392. [PMID: 31313590 DOI: 10.1080/10408398.2019.1641065] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Food 3 D printing is an emerging food processing technology. Due to the advantages of functionalization, customization, personalized nutrition design, simplified supply chain and broadening existing food materials, 3 D printing has been extensively studied in the food sector in the past decade. Many factors influence the accuracy and quality of food 3 D printing, which are also the challenges to researchers. Currently, most of the research focuses on the development of printable materials and control of printing parameters to improve the printing accuracy and product quality. However, the influence of material pretreatment methods and post-processing techniques on food 3 D printing have received less attention. MAIN CONTENT By collecting the available data and research, this paper analyzes the effect of pretreatment technologies (crushing, gelation, etc.) and post-treatment technologies (cooking, drying, fast cooling technology, 4 D printing, etc.) on the accuracy and shape fidelity of 3 D printed food products. It also summarizes the current challenges of food 3 D printing and proposes some thoughts on the future development of this technology.
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Affiliation(s)
- Chang He
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China
| | - Min Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, China.,Jiangsu Province Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Jiangsu Sheng, China
| | - Zhongxiang Fang
- School of Agriculture and Food, The University of Melbourne, Parkville, Victoria, Australia
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Basara G, Yue X, Zorlutuna P. Dual Crosslinked Gelatin Methacryloyl Hydrogels for Photolithography and 3D Printing. Gels 2019; 5:E34. [PMID: 31277240 PMCID: PMC6787727 DOI: 10.3390/gels5030034] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/18/2019] [Accepted: 07/01/2019] [Indexed: 12/25/2022] Open
Abstract
Gelatin methacryloyl (GelMA) hydrogels have been used in tissue engineering and regenerative medicine because of their biocompatibility, photopatternability, printability, and tunable mechanical and rheological properties. However, low mechanical strength limits their applications in controlled drug release, non-viral gene therapy, and tissue and disease modeling. In this work, a dual crosslinking method for GelMA is introduced. First, photolithography was used to pattern the gels through the crosslinking of methacrylate incorporated amine groups of GelMA. Second, a microbial transglutaminase (mTGase) solution was introduced in order to enzymatically crosslink the photopatterned gels by initiating a chemical reaction between the glutamine and lysine groups of the GelMA hydrogel. The results showed that dual crosslinking improved the stiffness and rheological properties of the hydrogels without affecting cell viability, when compared to single crosslinking with either ultraviolet (UV) exposure or mTGase treatment. Our results also demonstrate that when treated with mTGase, hydrogels show decreased swelling properties and better preservation of photolithographically patterned shapes. Similar effects were observed when three dimensional (3D) printed and photocrosslinked substrates were treated with mTGase. Such dual crosslinking methods can be used to improve the mechanical properties and pattern fidelity of GelMA gels, as well as dynamic control of the stiffness of tissue engineered constructs.
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Affiliation(s)
- Gozde Basara
- Aerospace and Mechanical Engineering Department, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Xiaoshan Yue
- Aerospace and Mechanical Engineering Department, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Pinar Zorlutuna
- Aerospace and Mechanical Engineering Department, University of Notre Dame, Notre Dame, IN 46556, USA.
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Compaan AM, Song K, Huang Y. Gellan Fluid Gel as a Versatile Support Bath Material for Fluid Extrusion Bioprinting. ACS APPLIED MATERIALS & INTERFACES 2019; 11:5714-5726. [PMID: 30644714 DOI: 10.1021/acsami.8b13792] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Biomedical applications of three-dimensional (3D) printing demand complex hydrogel-based constructs laden with living cells. Advanced support materials facilitate the fabrication of such constructs. This work demonstrates the versatility and utility of a gellan fluid gel as a support bath material for fabricating freeform 3D hydrogel constructs from a variety of materials. Notably, the gellan fluid gel support bath can supply sensitive biological cross-linking agents such as enzymes to printed fluid hydrogel precursors for mild covalent hydrogel cross-linking. This mild fabrication approach is suitable for fabricating cell-laden gelatin-based constructs in which mammalian cells can form intercellular contacts within hours of fabrication; cellular activity is observed over several days within printed constructs. In addition, gellan is compatible with a wide range of ionic and thermal conditions, which makes it a suitable support material for ionically cross-linked structures generated by printing alginate-based ink formulations as well as thermosensitive hydrogel constructs formed from gelatin. Ultraviolet irradiation of printed structures within the support bath is also demonstrated for photoinitiated cross-linking of acrylated ink materials. Furthermore, gellan support material performance in terms of printed filament stability and residual support material on constructs is found to be comparable and superior, respectively, to previously reported support materials.
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Gill AS, Deol PK, Kaur IP. An Update on the Use of Alginate in Additive Biofabrication Techniques. Curr Pharm Des 2019; 25:1249-1264. [PMID: 31020933 DOI: 10.2174/1381612825666190423155835] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 04/15/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Solid free forming (SFF) technique also called additive manufacturing process is immensely popular for biofabrication owing to its high accuracy, precision and reproducibility. METHOD SFF techniques like stereolithography, selective laser sintering, fused deposition modeling, extrusion printing, and inkjet printing create three dimension (3D) structures by layer by layer processing of the material. To achieve desirable results, selection of the appropriate technique is an important aspect and it is based on the nature of biomaterial or bioink to be processed. RESULT & CONCLUSION Alginate is a commonly employed bioink in biofabrication process, attributable to its nontoxic, biodegradable and biocompatible nature; low cost; and tendency to form hydrogel under mild conditions. Furthermore, control on its rheological properties like viscosity and shear thinning, makes this natural anionic polymer an appropriate candidate for many of the SFF techniques. It is endeavoured in the present review to highlight the status of alginate as bioink in various SFF techniques.
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Affiliation(s)
- Amoljit Singh Gill
- Department of Mechanical Engineering, I.K. Gujral Punjab Technical University, Kapurthala, Punjab, India
| | - Parneet Kaur Deol
- Department of Pharmaceutics, G.H.G. Khalsa College of Pharmacy, Gurusar Sadhar, Ludhiana, Punjab, India
| | - Indu Pal Kaur
- Department of Pharmaceutics, University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, India
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Luo Y, Wei X, Huang P. 3D bioprinting of hydrogel‐based biomimetic microenvironments. J Biomed Mater Res B Appl Biomater 2018; 107:1695-1705. [DOI: 10.1002/jbm.b.34262] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 08/30/2018] [Accepted: 09/23/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Yongxiang Luo
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingSchool of Biomedical Engineering, Health Science Center, Shenzhen University Shenzhen, 518060 China
| | - Xiaoyue Wei
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingSchool of Biomedical Engineering, Health Science Center, Shenzhen University Shenzhen, 518060 China
| | - Peng Huang
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound ImagingSchool of Biomedical Engineering, Health Science Center, Shenzhen University Shenzhen, 518060 China
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An Overview of 3D Printing Technologies for Soft Materials and Potential Opportunities for Lipid-based Drug Delivery Systems. Pharm Res 2018; 36:4. [PMID: 30406349 DOI: 10.1007/s11095-018-2531-1] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Accepted: 10/21/2018] [Indexed: 01/08/2023]
Abstract
PURPOSE Three-dimensional printing (3DP) is a rapidly growing additive manufacturing process and it is predicted that the technology will transform the production of goods across numerous fields. In the pharmaceutical sector, 3DP has been used to develop complex dosage forms of different sizes and structures, dose variations, dose combinations and release characteristics, not possible to produce using traditional manufacturing methods. However, the technology has mainly been focused on polymer-based systems and currently, limited information is available about the potential opportunities for the 3DP of soft materials such as lipids. METHODS This review paper emphasises the most commonly used 3DP technologies for soft materials such as inkjet printing, binder jetting, selective laser sintering (SLS), stereolithography (SLA), fused deposition modeling (FDM) and semi-solid extrusion, with the current status of these technologies for soft materials in biological, food and pharmaceutical applications. RESULT The advantages of 3DP, particularly in the pharmaceutical field, are highlighted and an insight is provided about the current studies for lipid-based drug delivery systems evaluating the potential of 3DP to fabricate innovative products. Additionally, the challenges of the 3DP technologies associated with technical processing, regulatory and material issues of lipids are discussed in detail. CONCLUSION The future utility of 3DP for printing soft materials, particularly for lipid-based drug delivery systems, offers great advantages and the technology will potentially support patient compliance and drug effectiveness via a personalised medicine approach.
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Liu Y, Wu HC, Bhokisham N, Li J, Hong KL, Quan DN, Tsao CY, Bentley WE, Payne GF. Biofabricating Functional Soft Matter Using Protein Engineering to Enable Enzymatic Assembly. Bioconjug Chem 2018; 29:1809-1822. [PMID: 29745651 PMCID: PMC7045599 DOI: 10.1021/acs.bioconjchem.8b00197] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Biology often provides the inspiration for functional soft matter, but biology can do more: it can provide the raw materials and mechanisms for hierarchical assembly. Biology uses polymers to perform various functions, and biologically derived polymers can serve as sustainable, self-assembling, and high-performance materials platforms for life-science applications. Biology employs enzymes for site-specific reactions that are used to both disassemble and assemble biopolymers both to and from component parts. By exploiting protein engineering methodologies, proteins can be modified to make them more susceptible to biology's native enzymatic activities. They can be engineered with fusion tags that provide (short sequences of amino acids at the C- and/or N- termini) that provide the accessible residues for the assembling enzymes to recognize and react with. This "biobased" fabrication not only allows biology's nanoscale components (i.e., proteins) to be engineered, but also provides the means to organize these components into the hierarchical structures that are prevalent in life.
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Affiliation(s)
| | - Hsuan-Chen Wu
- Department of Biochemical Science and Technology , National Taiwan University , Taipei City , Taiwan
| | | | | | - Kai-Lin Hong
- Department of Biochemical Science and Technology , National Taiwan University , Taipei City , Taiwan
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Li L, Lu C, Wang L, Chen M, White J, Hao X, McLean KM, Chen H, Hughes TC. Gelatin-Based Photocurable Hydrogels for Corneal Wound Repair. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13283-13292. [PMID: 29620862 DOI: 10.1021/acsami.7b17054] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this study, an injectable, photocurable gelatin system, consisting of acrylated gelatin and thiolated gelatin, with tunable mechanical, biodegradation, and biological properties was used as a potential cell-supportive scaffold for the repair of focal corneal wounds. The mechanical property of hydrogels can be readily modified (postcure shear modulus of between 0.3 and 22 kPa) by varying the ratio of acrylate to thiol groups, photointensity, and solid content, and the biodegradation times also varied with the change of solid content. More importantly, the generated hydrogels exhibited excellent cell viability in both cell seeding and cell encapsulation experiments. Furthermore, the hydrogels were found to be biocompatible with rabbit cornea and aided the regeneration of a new tissue under a focal corneal wound (exhibiting epithelial wound coverage in <3d), and ultraviolet irradiation did not have any obvious harmful effect on the cornea and posterior eye segment tissues. Along with their injectability and tunable mechanical properties, the photocurable thiol-acrylate hydrogels showed promise as corneal substitutes or substrates to construct a new corneal tissue.
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Affiliation(s)
- Lingli Li
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
- Wenzhou Institute of Biomaterials and Engineering , Wenzhou , Zhejiang Province 325001 , PRC
| | - Conglie Lu
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
| | - Lei Wang
- Wenzhou Institute of Biomaterials and Engineering , Wenzhou , Zhejiang Province 325001 , PRC
| | - Mei Chen
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
| | - Jacinta White
- CSIRO Manufacturing , Clayton , Victoria 3169 , Australia
| | - Xiaojuan Hao
- CSIRO Manufacturing , Clayton , Victoria 3169 , Australia
| | - Keith M McLean
- CSIRO Manufacturing , Clayton , Victoria 3169 , Australia
| | - Hao Chen
- School of Ophthalmology & Optometry, Eye Hospital , Wenzhou Medical University , Wenzhou , Zhejiang Province 325000 , PRC
- Wenzhou Institute of Biomaterials and Engineering , Wenzhou , Zhejiang Province 325001 , PRC
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