1
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Asciak L, Domingo-Roca R, Dow JR, Brodie R, Paterson N, Riches PE, Shu W, McCormick C. Exploiting light-based 3D-printing for the fabrication of mechanically enhanced, patient-specific aortic grafts. J Mech Behav Biomed Mater 2024; 154:106531. [PMID: 38588633 DOI: 10.1016/j.jmbbm.2024.106531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 03/28/2024] [Accepted: 03/29/2024] [Indexed: 04/10/2024]
Abstract
Despite polyester vascular grafts being routinely used in life-saving aortic aneurysm surgeries, they are less compliant than the healthy, native human aorta. This mismatch in mechanical behaviour has been associated with disruption of haemodynamics contributing to several long-term cardiovascular complications. Moreover, current fabrication approaches mean that opportunities to personalise grafts to the individual anatomical features are limited. Various modifications to graft design have been investigated to overcome such limitations; yet optimal graft functionality remains to be achieved. This study reports on the development and characterisation of an alternative vascular graft material. An alginate:PEGDA (AL:PE) interpenetrating polymer network (IPN) hydrogel has been produced with uniaxial tensile tests revealing similar strength and stiffness (0.39 ± 0.05 MPa and 1.61 ± 0.19 MPa, respectively) to the human aorta. Moreover, AL:PE tubular conduits of similar geometrical dimensions to segments of the aorta were produced, either via conventional moulding methods or stereolithography (SLA) 3D-printing. While both fabrication methods successfully demonstrated AL:PE hydrogel production, SLA 3D-printing was more easily adaptable to the fabrication of complex structures without the need of specific moulds or further post-processing. Additionally, most 3D-printed AL:PE hydrogel tubular conduits sustained, without failure, compression up to 50% their outer diameter and returned to their original shape upon load removal, thereby exhibiting promising behaviour that could withstand pulsatile pressure in vivo. Overall, these results suggest that this AL:PE IPN hydrogel formulation in combination with 3D-printing, has great potential for accelerating progress towards personalised and mechanically-matched aortic grafts.
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Affiliation(s)
- Lisa Asciak
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK
| | - Roger Domingo-Roca
- Department of Electronic and Electric Engineering, University of Strathclyde, Glasgow, UK
| | - Jamie R Dow
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK; Research and Development, Terumo Aortic Ltd., Inchinnan, Glasgow, UK
| | - Robbie Brodie
- Research and Development, Terumo Aortic Ltd., Inchinnan, Glasgow, UK
| | - Niall Paterson
- Research and Development, Terumo Aortic Ltd., Inchinnan, Glasgow, UK
| | - Philip E Riches
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK
| | - Wenmiao Shu
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, UK
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2
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Wu Y, Yang X, Gupta D, Alioglu MA, Qin M, Ozbolat V, Li Y, Ozbolat IT. Dissecting the Interplay Mechanism among Process Parameters toward the Biofabrication of High-Quality Shapes in Embedded Bioprinting. ADVANCED FUNCTIONAL MATERIALS 2024; 34:2313088. [PMID: 38952568 PMCID: PMC11216718 DOI: 10.1002/adfm.202313088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Indexed: 07/03/2024]
Abstract
Embedded bioprinting overcomes the barriers associated with the conventional extrusion-based bioprinting process as it enables the direct deposition of bioinks in 3D inside a support bath by providing in situ self-support for deposited bioinks during bioprinting to prevent their collapse and deformation. Embedded bioprinting improves the shape quality of bioprinted constructs made up of soft materials and low-viscosity bioinks, leading to a promising strategy for better anatomical mimicry of tissues or organs. Herein, the interplay mechanism among the printing process parameters toward improved shape quality is critically reviewed. The impact of material properties of the support bath and bioink, printing conditions, cross-linking mechanisms, and post-printing treatment methods, on the printing fidelity, stability, and resolution of the structures is meticulously dissected and thoroughly discussed. Further, the potential scope and applications of this technology in the fields of bioprinting and regenerative medicine are presented. Finally, outstanding challenges and opportunities of embedded bioprinting as well as its promise for fabricating functional solid organs in the future are discussed.
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Affiliation(s)
- Yang Wu
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Xue Yang
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Deepak Gupta
- The Huck Institutes of the Life Sciences, Penn State University University Park, PA 16802, USA
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, USA
| | - Mecit Altan Alioglu
- The Huck Institutes of the Life Sciences, Penn State University University Park, PA 16802, USA
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, USA
| | - Minghao Qin
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Veli Ozbolat
- Biotechnology Research and Application Center, Cukurova University, Adana 01130, Turkey
- Ceyhan Engineering Faculty, Mechanical Engineering Department, Cukurova University, Adana 01330, Turkey
- Institute of Natural and Applied Sciences, Tissue Engineering Department, Cukurova University, Adana 01130, Turkey
| | - Yao Li
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Ibrahim T Ozbolat
- The Huck Institutes of the Life Sciences, Penn State University University Park, PA 16802, USA
- Engineering Science and Mechanics Department, Penn State University, University Park, PA 16802, USA
- Department of Biomedical Engineering, Penn State University, University Park, PA 16802, USA
- Materials Research Institute, Penn State University, University Park, PA 16802, USA
- Department of Neurosurgery, Penn State College of Medicine, Hershey, PA 17033, USA
- Penn State Cancer Institute, Penn State University, Hershey, PA 17033, USA
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3
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Wu Y, Qin M, Yang X. Organ bioprinting: progress, challenges and outlook. J Mater Chem B 2023; 11:10263-10287. [PMID: 37850299 DOI: 10.1039/d3tb01630g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
Bioprinting, as a groundbreaking technology, enables the fabrication of biomimetic tissues and organs with highly complex structures, multiple cell types, mechanical heterogeneity, and diverse functional gradients. With the growing demand for organ transplantation and the limited number of organ donors, bioprinting holds great promise for addressing the organ shortage by manufacturing completely functional organs. While the bioprinting of complete organs remains a distant goal, there has been considerable progress in the development of bioprinted transplantable tissues and organs for regenerative medicine. This review article recapitulates the current achievements of organ 3D bioprinting, primarily encompassing five important organs in the human body (i.e., the heart, kidneys, liver, pancreas, and lungs). Challenges from cellular techniques, biomanufacturing technologies, and organ maturation techniques are also deliberated for the broad application of organ bioprinting. In addition, the integration of bioprinting with other cutting-edge technologies including machine learning, organoids, and microfluidics is envisioned, which strives to offer the reader the prospect of bioprinting in constructing functional organs.
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Affiliation(s)
- Yang Wu
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China.
| | - Minghao Qin
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China.
| | - Xue Yang
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China.
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4
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Ha JH, Lim JH, Lee JM, Chung BG. Electro-Responsive Conductive Blended Hydrogel Patch. Polymers (Basel) 2023; 15:2608. [PMID: 37376253 DOI: 10.3390/polym15122608] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
The proposed electro-responsive hydrogel has great benefit for transdermal drug delivery system (TDDS) applications. To improve the physical or chemical properties of hydrogels, a number of researchers have previously studied the mixing efficiencies of the blended hydrogels. However, few studies have focused on improving the electrical conductivity and drug delivery of the hydrogels. We developed a conductive blended hydrogel by mixing alginate with gelatin methacrylate (GelMA) and silver nanowire (AgNW). We demonstrated that and the tensile strength of blended hydrogels were increased by a factor of 1.8 by blending GelMA and the electrical conductivity was enhanced by a factor of 18 by the addition of AgNW. Furthermore, the GelMA-alginate-AgNW (Gel-Alg-AgNW) blended hydrogel patch enabled on-off controllable drug release, indicating 57% doxorubicin release in response to electrical stimulation (ES) application. Therefore, this electro-responsive blended hydrogel patch could be useful for smart drug delivery applications.
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Affiliation(s)
- Jang Ho Ha
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Republic of Korea
| | - Jae Hyun Lim
- Research Center, Sogang University, Seoul 04107, Republic of Korea
| | - Jong Min Lee
- Division of Chemical Industry, Yeungnam University College, Daegu 42415, Republic of Korea
| | - Bong Geun Chung
- Department of Mechanical Engineering, Sogang University, Seoul 04107, Republic of Korea
- Institute of Smart Biosensor, Sogang University, Seoul 04107, Republic of Korea
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5
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Ferre-Torres J, Noguera-Monteagudo A, Lopez-Canosa A, Romero-Arias JR, Barrio R, Castaño O, Hernandez-Machado A. Modelling of chemotactic sprouting endothelial cells through an extracellular matrix. Front Bioeng Biotechnol 2023; 11:1145550. [PMID: 37362221 PMCID: PMC10285466 DOI: 10.3389/fbioe.2023.1145550] [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: 01/17/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023] Open
Abstract
Sprouting angiogenesis is a core biological process critical to vascular development. Its accurate simulation, relevant to multiple facets of human health, is of broad, interdisciplinary appeal. This study presents an in-silico model replicating a microfluidic assay where endothelial cells sprout into a biomimetic extracellular matrix, specifically, a large-pore, low-concentration fibrin-based porous hydrogel, influenced by chemotactic factors. We introduce a novel approach by incorporating the extracellular matrix and chemotactic factor effects into a unified term using a single parameter, primarily focusing on modelling sprouting dynamics and morphology. This continuous model naturally describes chemotactic-induced sprouting with no need for additional rules. In addition, we extended our base model to account for matrix sensing and degradation, crucial aspects of angiogenesis. We validate our model via a hybrid in-silico experimental method, comparing the model predictions with experimental results derived from the microfluidic setup. Our results underscore the intricate relationship between the extracellular matrix structure and angiogenic sprouting, proposing a promising method for predicting the influence of the extracellular matrix on angiogenesis.
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Affiliation(s)
- Josep Ferre-Torres
- Department of Condensed Matter Physics, University of Barcelona (UB), Barcelona, Spain
| | | | - Adrian Lopez-Canosa
- Electronics and Biomedical Engineering, University of Barcelona (UB), Barcelona, Spain
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Spain
| | - J. Roberto Romero-Arias
- Institute for Research in Applied Mathematics and Systems, National Autonomous University of Mexico , Mexico City, Mexico
| | - Rafael Barrio
- Institute of Physics, National Autonomous University of Mexico, Mexico City, Mexico
| | - Oscar Castaño
- Electronics and Biomedical Engineering, University of Barcelona (UB), Barcelona, Spain
- Biomaterials for Regenerative Therapies, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona (UB), Barcelona, Spain
| | - Aurora Hernandez-Machado
- Department of Condensed Matter Physics, University of Barcelona (UB), Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona (UB), Barcelona, Spain
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6
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Hafezi M, Khorasani SN, Khalili S, Neisiany RE. Self-healing interpenetrating network hydrogel based on GelMA/alginate/nano-clay. Int J Biol Macromol 2023; 242:124962. [PMID: 37207752 DOI: 10.1016/j.ijbiomac.2023.124962] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 05/12/2023] [Accepted: 05/17/2023] [Indexed: 05/21/2023]
Abstract
Today, tissue engineering strategies need the improvement of advanced hydrogels with biological and mechanical properties similar to natural cartilage for joint regeneration. In this study, an interpenetrating network (IPN) hydrogel composed of gelatin methacrylate (GelMA)/alginate (Algin)/nano-clay (NC) with self-healing ability was developed with particular consideration to balancing of the mechanical properties and biocompatibility of bioink material. Subsequently, the properties of the synthesized nanocomposite IPN, including the chemical structure, rheological behavior, physical properties (i.e. porosity and swelling), mechanical properties, biocompatibility, and self-healing performance were evaluated to investigate the potential application of the developed hydrogel for cartilage tissue engineering (CTE). The synthesized hydrogels showed highly porous structures with dissimilar pore sizes. The results revealed that the NC incorporation improved the properties of GelMA/Algin IPN, such as porosity, and mechanical strength (reached 170 ± 3.5 kPa), while the NC incorporation decreased the degradation (63.8 %) along with retaining biocompatibility. Therefore, the developed hydrogel showed a promising potential for the treatment of tissue defects in cartilage.
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Affiliation(s)
- Mahshid Hafezi
- Chemical Engineering Group, Pardis College, Isfahan University of Technology, Isfahan 8415683111, Iran; Department of Chemical Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
| | - Saied Nouri Khorasani
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran.
| | - Shahla Khalili
- Department of Chemical Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
| | - Rasoul Esmaeely Neisiany
- Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar 9617976487, Iran.
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7
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Abstract
Tumor metastasis is a multiple cascade process where tumor cells disseminate from the primary site to distant organs and subsequently adapt to the foreign microenvironment. Simulating the physiology of tumor metastatic events in a realistic and three-dimensional (3D) manner is a challenge for in vitro modeling. 3D bioprinting strategies, which can generate well-customized and bionic structures, enable the exploration of dynamic tumor metastasis process in a species-homologous, high-throughput and reproducible way. In this review, we summarize the recent application of 3D bioprinting in constructing in vitro tumor metastatic models and discuss its advantages and current limitations. Further perspectives on how to harness the potential of accessible 3D bioprinting strategies to better model tumor metastasis and guide anti-cancer therapies are also provided.
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Affiliation(s)
- Manqing Lin
- Department of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian 116023, China
| | - Mengyi Tang
- Department of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian 116023, China
| | - Wenzhe Duan
- Department of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian 116023, China
| | - Shengkai Xia
- Department of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian 116023, China
| | - Wenwen Liu
- Cancer Translational Medicine Research Center, The Second Hospital, Dalian Medical University, Dalian 116023, China
| | - Qi Wang
- Department of Respiratory Medicine, The Second Hospital, Dalian Medical University, Dalian 116023, China
- Cancer Translational Medicine Research Center, The Second Hospital, Dalian Medical University, Dalian 116023, China
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8
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Gruhn T, Monsalve CO, Müller C, Heid S, Boccaccini AR, Salehi S. Fabrication of Hydrogel-Based Composite Fibers and Computer Simulation of the Filler Dynamics in the Composite Flow. Bioengineering (Basel) 2023; 10:bioengineering10040448. [PMID: 37106635 PMCID: PMC10135958 DOI: 10.3390/bioengineering10040448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/21/2023] [Accepted: 04/02/2023] [Indexed: 04/29/2023] Open
Abstract
Fibrous structures with anisotropic fillers as composites have found increasing interest in the field of biofabrication since they can mimic the extracellular matrix of anisotropic tissues such as skeletal muscle or nerve tissue. In the present work, the inclusion of anisotropic fillers in hydrogel-based filaments with an interpenetrating polymeric network (IPN) was evaluated and the dynamics of such fillers in the composite flow were analyzed using computational simulations. In the experimental part, microfabricated rods (200 and 400 μm length, 50 μm width) were used as anisotropic fillers in extrusion of composite filaments using two techniques of wet spinning and 3D printing. Hydrogels such as oxidized alginate (ADA) and methacrylated gelatin (GelMA) were used as matrices. In the computational simulation, a combination of computational fluid dynamics and coarse-grained molecular dynamics was used to study the dynamics of rod-like fillers in the flow field of a syringe. It showed that, during the extrusion process, microrods are far from being well aligned. Instead, many of them tumble on their way through the needle leading to a random orientation in the fiber which was confirmed experimentally.
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Affiliation(s)
- Thomas Gruhn
- Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
| | - Camilo Ortiz Monsalve
- Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
- Invertec-eV, Gottlieb-Keim-Straße 60, 95448 Bayreuth, Germany
| | - Claudia Müller
- Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
| | - Susanne Heid
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Cauerstraße 6, 91058 Erlangen, Germany
| | - Sahar Salehi
- Department of Biomaterials, Faculty of Engineering Science, University of Bayreuth, Prof.-Rüdiger-Bormann Str. 1, 95447 Bayreuth, Germany
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9
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A vertical additive-lathe printing system for the fabrication of tubular constructs using gelatin methacryloyl hydrogel. J Mech Behav Biomed Mater 2023; 139:105665. [PMID: 36640542 DOI: 10.1016/j.jmbbm.2023.105665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/26/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
Reproducing both the mechanical and biological performance of native blood vessels remains an ongoing challenge in vascular tissue engineering. Additive-lathe printing offers an attractive method of fabricating long tubular constructs as a potential vascular graft for the treatment of cardiovascular diseases. Printing hydrogels onto rotating horizontal mandrels often leads to sagging, resulting in poor and variable mechanical properties. In this study, an additive-lathe printing system with a vertical mandrel to fabricate tubular constructs is presented. Various concentrations of gelatin methacryloyl (gelMA) hydrogel were used to print grafts on the rotating mandrel in a helical pattern. The printing parameters were selected to achieve the bonding of consecutive gelMA filaments to improve the quality of the printed graft. The hydrogel filaments were fused properly under the action of gravity on the vertical mandrel. Thus, the vertical additive-lathe printing system was used to print uniform wall thickness grafts, eliminating the hydrogel sagging problem. Tensile testing performed in both circumferential and longitudinal direction revealed that the anisotropic properties of printed gelMA constructs were similar to those observed in the native blood vessels. In addition, no leakage was detected through the walls of the gelMA grafts during burst pressure measurement. Therefore, the current printing setup could be utilized to print vascular grafts for the treatment of cardiovascular diseases.
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10
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Alarçin E, İzbudak B, Yüce Erarslan E, Domingo S, Tutar R, Titi K, Kocaaga B, Guner FS, Bal-Öztürk A. Optimization of methacrylated gelatin /layered double hydroxides nanocomposite cell-laden hydrogel bioinks with high printability for 3D extrusion bioprinting. J Biomed Mater Res A 2023; 111:209-223. [PMID: 36213938 DOI: 10.1002/jbm.a.37450] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 12/13/2022]
Abstract
Layered double hydroxides (LDHs) offer unique source of inspiration for design of bone mimetic biomaterials due to their superior mechanical properties, drug delivery capability and regulation cellular behaviors, particularly by divalent metal cations in their structure. Three-dimensional (3D) bioprinting of LDHs holds great promise as a novel strategy thanks to highly tunable physiochemical properties and shear-thinning ability of LDHs, which allow shape fidelity after deposition. Herein, we introduce a straightforward strategy for extrusion bioprinting of cell laden nanocomposite hydrogel bioink of gelatin methacryloyl (GelMA) biopolymer and LDHs nanoparticles. First, we synthesized LDHs by co-precipitation process and systematically examined the effect of LDHs addition on printing parameters such as printing pressure, extrusion rate, printing speed, and finally bioink printability in creating grid-like constructs. The developed hydrogel bioinks provided precise control over extrudability, extrusion uniformity, and structural integrity after deposition. Based on the printability and rheological analysis, the printability could be altered by controlling the concentration of LDHs, and printability was found to be ideal with the addition of 3 wt % LDHs. The addition of LDHs resulted in remarkably enhanced compressive strength from 652 kPa (G-LDH0) to 1168 kPa (G-LDH3). It was shown that the printed nanocomposite hydrogel scaffolds were able to support encapsulated osteoblast survival, spreading, and proliferation in the absence of any osteoinductive factors taking advantage of LDHs. In addition, cells encapsulated in G-LDH3 had a larger cell spreading area and higher cell aspect ratio than those encapsulated in G-LDH0. Altogether, the results demonstrated that the developed GelMA/LDHs nanocomposite hydrogel bioink revealed a high potential for extrusion bioprinting with high structural fidelity to fabricate implantable 3D hydrogel constructs for repair of bone defects.
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Affiliation(s)
- Emine Alarçin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Burçin İzbudak
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey
| | - Elif Yüce Erarslan
- Chemical Engineering Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Sherif Domingo
- Chemical Engineering Department, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Rumeysa Tutar
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Kariman Titi
- Department of Chemistry, Faculty of Science and Technology, Hebron University, Hebron, West Bank, Palestine
| | - Banu Kocaaga
- Department of Chemical Engineering, Istanbul Technical University, Istanbul, Turkey
| | - F Seniha Guner
- Department of Chemical Engineering, Istanbul Technical University, Istanbul, Turkey
| | - Ayça Bal-Öztürk
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey.,Department of Analytical Chemistry, Faculty of Pharmacy, Istinye University, Istanbul, Turkey.,3D Bioprinting Design&Prototyping R&D Center, Istinye University, Istanbul, Turkey
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11
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Li J, Moeinzadeh S, Kim C, Pan CC, Weale G, Kim S, Abrams G, James AW, Choo H, Chan C, Yang YP. Development and systematic characterization of GelMA/alginate/PEGDMA/xanthan gum hydrogel bioink system for extrusion bioprinting. Biomaterials 2023; 293:121969. [PMID: 36566553 PMCID: PMC9868087 DOI: 10.1016/j.biomaterials.2022.121969] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 07/27/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
Gelatin methacryloyl (GelMA)/alginate-based hydrogels have shown great promise in bioprinting, but their printability is limited at room temperature. In this paper, we present our development of a room temperature printable hydrogel bioink by introducing polyethylene glycol dimethacrylate (PEGDMA) and xanthan gum into the GelMA/alginate system. The inclusion of PEGDMA facilitates tuning of the hydrogel's mechanical property, while xanthan gum improves the viscosity of the hydrogel system and allows easy extrusion at room temperature. To fine-tune the mechanical and degradation properties, methacrylated xanthan gum was synthesized and chemically crosslinked to the system. We systematically characterized this hydrogel with attention to printability, strut size, mechanical property, degradation and cytocompatibility, and achieved a broad range of compression modulus (∼10-100 kPa) and degradation profile (100% degradation by 24 h-40% by 2 weeks). Moreover, xanthan gum demonstrated solubility in ionic solutions such as cell culture medium, which is essential for biocompatibility. Live/dead staining showed that cell viability in the printed hydrogels was over 90% for 7 days. Metabolic activity analysis demonstrated excellent cell proliferation and survival within 4 weeks of incubation. In summary, the newly developed hydrogel system has demonstrated distinct features including extrusion printability, widely tunable mechanical property and degradation, ionic solubility, and cytocompatibility. It offers great flexibility in bioprinting and tissue engineering.
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Affiliation(s)
- Jiannan Li
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA
| | - Seyedsina Moeinzadeh
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA
| | - Carolyn Kim
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA; Department of Mechanical Engineering, Stanford University, 440 Escondido Mall, Stanford, CA94305, USA
| | - Chi-Chun Pan
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA; Department of Mechanical Engineering, Stanford University, 440 Escondido Mall, Stanford, CA94305, USA
| | - George Weale
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA
| | - Sungwoo Kim
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA
| | - Geoffrey Abrams
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA
| | - Aaron W James
- Department of Pathology, Johns Hopkins University, 720 Rutland Avenue, Room 524A, Baltimore, MD, 21205, USA
| | - HyeRan Choo
- Department of Surgery, Stanford University, 300 Pasteur Drive, Stanford, CA94305, USA
| | - Charles Chan
- Department of Surgery, Stanford University, 300 Pasteur Drive, Stanford, CA94305, USA
| | - Yunzhi Peter Yang
- Department of Orthopaedic Surgery, Stanford University, 240 Pasteur Drive, Stanford, CA94304, USA; Department of Materials Science and Engineering, Stanford University, 496 Lomita Mall, Stanford, CA94305, USA; Department of Bioengineering, Stanford University, 443 Via Ortega, Stanford, CA94305, USA.
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12
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Xu H, Liu J, Shahriar M, Xu C. Investigation of Cell Aggregation on the Printing Performance in Inkjet-Based Bioprinting of Cell-Laden Bioink. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:545-555. [PMID: 36563060 DOI: 10.1021/acs.langmuir.2c02817] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
During 3D bioprinting, when the gravitational force exceeds the buoyant force, cell sedimentation will be induced, resulting in local cell concentration change and cell aggregation which affect the printing performance. This paper aims at studying and quantifying cell aggregation and its effects on the droplet formation process during inkjet-based bioprinting and cell distribution after inkjet-based bioprinting. The major conclusions of this study are as follows: (1) Cell aggregation is a significant challenge during inkjet-based bioprinting by observing the percentage of individual cells after different printing times. In addition, as polymer concentration increases, the cell aggregation is suppressed. (2) As printing time and cell aggregation increase, the ligament length and droplet velocity generally decrease first and then increase due to the initial increase and subsequent decrease of the viscous effect. (3) As the printing time increases, both the maximum number of cells within one microsphere and the mean cell number have a significant increase, especially for low polymer concentrations such as 0.5% (w/v). In addition, the increased rate is the highest using the lowest polymer concentration of 0.5% (w/v) because of its highest cell sedimentation velocity.
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Affiliation(s)
- Heqi Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, Texas 79409, United States
- The State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310028, China
| | - Jiachen Liu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Md Shahriar
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Changxue Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, Texas 79409, United States
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Pereira I, Lopez-Martinez MJ, Villasante A, Introna C, Tornero D, Canals JM, Samitier J. Hyaluronic acid-based bioink improves the differentiation and network formation of neural progenitor cells. Front Bioeng Biotechnol 2023; 11:1110547. [PMID: 36937768 PMCID: PMC10020230 DOI: 10.3389/fbioe.2023.1110547] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 02/15/2023] [Indexed: 03/06/2023] Open
Abstract
Introduction: Three-dimensional (3D) bioprinting is a promising technique for the development of neuronal in vitro models because it controls the deposition of materials and cells. Finding a biomaterial that supports neural differentiation in vitro while ensuring compatibility with the technique of 3D bioprinting of a self-standing construct is a challenge. Methods: In this study, gelatin methacryloyl (GelMA), methacrylated alginate (AlgMA), and hyaluronic acid (HA) were examined by exploiting their biocompatibility and tunable mechanical properties to resemble the extracellular matrix (ECM) and to create a suitable material for printing neural progenitor cells (NPCs), supporting their long-term differentiation. NPCs were printed and differentiated for up to 15 days, and cell viability and neuronal differentiation markers were assessed throughout the culture. Results and Discussion: This composite biomaterial presented the desired physical properties to mimic the ECM of the brain with high water intake, low stiffness, and slow degradation while allowing the printing of defined structures. The viability rates were maintained at approximately 80% at all time points. However, the levels of β-III tubulin marker increased over time, demonstrating the compatibility of this biomaterial with neuronal cell culture and differentiation. Furthermore, these cells showed increased maturation with corresponding functional properties, which was also demonstrated by the formation of a neuronal network that was observed by recording spontaneous activity via Ca2+ imaging.
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Affiliation(s)
- Inês Pereira
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Maria J. Lopez-Martinez
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
- Biomedical Research Networking, Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Aranzazu Villasante
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
| | - Clelia Introna
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
- Creatio - Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Research Foundation Clinic Barcelona-August Pi i Sunyer Biomedical Research Institute (FRCB-IDIBAPS), Barcelona, Spain
| | - Daniel Tornero
- Research Foundation Clinic Barcelona-August Pi i Sunyer Biomedical Research Institute (FRCB-IDIBAPS), Barcelona, Spain
- Laboratory of Neuronal Stem Cells and Cerebral Damage, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
| | - Josep M. Canals
- Laboratory of Stem Cells and Regenerative Medicine, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Institute of Neurosciences, University of Barcelona, Barcelona, Spain
- Creatio - Production and Validation Center of Advanced Therapies, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona, Spain
- Research Foundation Clinic Barcelona-August Pi i Sunyer Biomedical Research Institute (FRCB-IDIBAPS), Barcelona, Spain
| | - Josep Samitier
- Nanobioengineering Group, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Department of Electronic and Biomedical Engineering, University of Barcelona, Barcelona, Spain
- Biomedical Research Networking, Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
- *Correspondence: Josep Samitier,
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Xu HQ, Liu JC, Zhang ZY, Xu CX. A review on cell damage, viability, and functionality during 3D bioprinting. Mil Med Res 2022; 9:70. [PMID: 36522661 PMCID: PMC9756521 DOI: 10.1186/s40779-022-00429-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/11/2022] [Indexed: 12/23/2022] Open
Abstract
Three-dimensional (3D) bioprinting fabricates 3D functional tissues/organs by accurately depositing the bioink composed of the biological materials and living cells. Even though 3D bioprinting techniques have experienced significant advancement over the past decades, it remains challenging for 3D bioprinting to artificially fabricate functional tissues/organs with high post-printing cell viability and functionality since cells endure various types of stress during the bioprinting process. Generally, cell viability which is affected by several factors including the stress and the environmental factors, such as pH and temperature, is mainly determined by the magnitude and duration of the stress imposed on the cells with poorer cell viability under a higher stress and a longer duration condition. The maintenance of high cell viability especially for those vulnerable cells, such as stem cells which are more sensitive to multiple stresses, is a key initial step to ensure the functionality of the artificial tissues/organs. In addition, maintaining the pluripotency of the cells such as proliferation and differentiation abilities is also essential for the 3D-bioprinted tissues/organs to be similar to native tissues/organs. This review discusses various pathways triggering cell damage and the major factors affecting cell viability during different bioprinting processes, summarizes the studies on cell viabilities and functionalities in different bioprinting processes, and presents several potential approaches to protect cells from injuries to ensure high cell viability and functionality.
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Affiliation(s)
- He-Qi Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, TX, 79409, USA
| | - Jia-Chen Liu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, TX, 79409, USA
| | - Zheng-Yi Zhang
- School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Chang-Xue Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, TX, 79409, USA.
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15
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Crosby CO, Stern B, Kalkunte N, Pedahzur S, Ramesh S, Zoldan J. Interpenetrating polymer network hydrogels as bioactive scaffolds for tissue engineering. REV CHEM ENG 2022; 38:347-361. [PMID: 35400772 PMCID: PMC8993131 DOI: 10.1515/revce-2020-0039] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
Tissue engineering, after decades of exciting progress and monumental breakthroughs, has yet to make a significant impact on patient health. It has become apparent that a dearth of biomaterial scaffolds that possess the material properties of human tissue while remaining bioactive and cytocompatible has been partly responsible for this lack of clinical translation. Herein, we propose the development of interpenetrating polymer network hydrogels as materials that can provide cells with an adhesive extracellular matrix-like 3D microenvironment while possessing the mechanical integrity to withstand physiological forces. These hydrogels can be synthesized from biologically-derived or synthetic polymers, the former polymer offering preservation of adhesion, degradability, and microstructure and the latter polymer offering tunability and superior mechanical properties. We review critical advances in the enhancement of mechanical strength, substrate-scale stiffness, electrical conductivity, and degradation in IPN hydrogels intended as bioactive scaffolds in the past five years. We also highlight the exciting incorporation of IPN hydrogels into state-of-the-art tissue engineering technologies, such as organ-on-a-chip and bioprinting platforms. These materials will be critical in the engineering of functional tissue for transplant, disease modeling, and drug screening.
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Affiliation(s)
- Cody O. Crosby
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas
| | - Brett Stern
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas
| | - Nikhith Kalkunte
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas
| | - Shahar Pedahzur
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas
| | - Shreya Ramesh
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas
| | - Janet Zoldan
- University of Texas at Austin, Department of Biomedical Engineering, Austin, Texas
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16
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Zhou K, Sun Y, Yang J, Mao H, Gu Z. Hydrogels for 3D embedded bioprinting: a focused review on bioinks and support baths. J Mater Chem B 2022; 10:1897-1907. [PMID: 35212327 DOI: 10.1039/d1tb02554f] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Three-dimensional (3D) bioprinting has played an increasingly crucial role in the manufacturing of organized complex tissues and organs, which has shown tremendous potential in the field of tissue engineering. Extrusion-based bioprinting takes advantage of its competitive pricing and flexibility to print various biomaterials, and it has now developed into one of the most used printing techniques. However, extruding soft hydrogels, also known as bioinks, often leads to poor fidelity when printed in air. As an emerging printing approach, 3D embedded bioprinting deposits bioinks not on a platform but into a support bath, preventing constructs from settling and collapsing. This review discusses the challenges faced in the traditional 3D bioprinting of soft or low-viscosity bioinks and the changes brought by embedded bioprinting as an emerging solution. Particular focus is given to the progress of hydrogels used as bioinks and support baths. Finally, we highlight the challenges involved in this process and look forward to the prospects of this technology.
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Affiliation(s)
- Ke Zhou
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Yadong Sun
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Jiquan Yang
- Jiangsu Key Lab of 3D Printing Equipment and Manufacturing, Nanjing Normal University, Nanjing, 210046, China
| | - Hongli Mao
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Zhongwei Gu
- Research Institute for Biomaterials, Tech Institute for Advanced Materials, College of Materials Science and Engineering, Nanjing Tech University, Nanjing 211816, China.
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17
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Cordero M, Ruiz C, Palacio DA, Turunen P, Rowan A, Urbano BF. Effect of low aspect ratio one-dimensional nanoparticles on properties of photocrosslinked alginate nanocomposite hydrogels. Int J Biol Macromol 2022; 204:635-643. [PMID: 35176322 DOI: 10.1016/j.ijbiomac.2022.02.059] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/03/2022] [Accepted: 02/11/2022] [Indexed: 01/07/2023]
Abstract
One-dimensional nanoparticles such as fibers, wires, represent an exciting type of filler for obtaining nanocomposite hydrogels due to their high aspect ratio. Unlike continuous fibers, in composites with short fibers, stress transfer occurs not only at the cylindrical surface of the fiber but also at the fiber ends. This work aimed to study the influence of the length of low aspect ratio one-dimensional nanoparticles on the rheological, swelling and thermal properties of nanocomposite hydrogels. We synthesized nanocomposite hydrogels via photopolymerization of methacrylated alginate macromonomers and aluminum oxide nanoparticles, nanowires and nanofibers as fillers. The main difference between the nanoparticles lies in their length. Longer nanoparticles (nanofibers) provided a glassier structure and a more significant reinforcement to the hydrogel, for example, at the concentration of 0.5 wt% the complex modulus increased approximately 2-fold and 8-fold for nanowires and nanofibers, respectively. Similarly, the incorporation of nanofibers produced hydrogels with a lower swelling capacity (2.5-fold decrease), which was attributed to a more connected network structure due to the higher aspect ratio of the nanofibers. Finally, both nanoparticle types produced an increase in the activation energy of thermal degradation.
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Affiliation(s)
- Matías Cordero
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Carla Ruiz
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
| | - Daniel A Palacio
- Departamento de Química Analítica e Inorgánica, Facultad de Ciencias Químicas, Universidad de Concepción, Chile
| | - Petri Turunen
- Microscopy Core Facility, Institute of Molecular Biology, Mainz, Germany
| | - Alan Rowan
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia
| | - Bruno F Urbano
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile.
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18
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Krishnamoorthy S, Schwartz MF, Van den Broeck L, Hunt A, Horn TJ, Sozzani R. Tissue Regeneration with Hydrogel Encapsulation: A Review of Developments in Plants and Animals. BIODESIGN RESEARCH 2021; 2021:9890319. [PMID: 37849953 PMCID: PMC10521718 DOI: 10.34133/2021/9890319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/11/2021] [Indexed: 10/19/2023] Open
Abstract
Hydrogel encapsulation has been widely utilized in the study of fundamental cellular mechanisms and has been shown to provide a better representation of the complex in vivo microenvironment in natural biological conditions of mammalian cells. In this review, we provide a background into the adoption of hydrogel encapsulation methods in the study of mammalian cells, highlight some key findings that may aid with the adoption of similar methods for the study of plant cells, including the potential challenges and considerations, and discuss key findings of studies that have utilized these methods in plant sciences.
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Affiliation(s)
- Srikumar Krishnamoorthy
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Michael F. Schwartz
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Lisa Van den Broeck
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Aitch Hunt
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Timothy J. Horn
- Mechanical and Aerospace Engineering Department, North Carolina State University, Raleigh, NC 27695, USA
| | - Rosangela Sozzani
- Plant and Microbial Biology Department, North Carolina State University, Raleigh, NC 27695, USA
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19
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Barreiro Carpio M, Dabaghi M, Ungureanu J, Kolb MR, Hirota JA, Moran-Mirabal JM. 3D Bioprinting Strategies, Challenges, and Opportunities to Model the Lung Tissue Microenvironment and Its Function. Front Bioeng Biotechnol 2021; 9:773511. [PMID: 34900964 PMCID: PMC8653950 DOI: 10.3389/fbioe.2021.773511] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 10/25/2021] [Indexed: 12/22/2022] Open
Abstract
Human lungs are organs with an intricate hierarchical structure and complex composition; lungs also present heterogeneous mechanical properties that impose dynamic stress on different tissue components during the process of breathing. These physiological characteristics combined create a system that is challenging to model in vitro. Many efforts have been dedicated to develop reliable models that afford a better understanding of the structure of the lung and to study cell dynamics, disease evolution, and drug pharmacodynamics and pharmacokinetics in the lung. This review presents methodologies used to develop lung tissue models, highlighting their advantages and current limitations, focusing on 3D bioprinting as a promising set of technologies that can address current challenges. 3D bioprinting can be used to create 3D structures that are key to bridging the gap between current cell culture methods and living tissues. Thus, 3D bioprinting can produce lung tissue biomimetics that can be used to develop in vitro models and could eventually produce functional tissue for transplantation. Yet, printing functional synthetic tissues that recreate lung structure and function is still beyond the current capabilities of 3D bioprinting technology. Here, the current state of 3D bioprinting is described with a focus on key strategies that can be used to exploit the potential that this technology has to offer. Despite today's limitations, results show that 3D bioprinting has unexplored potential that may be accessible by optimizing bioink composition and looking at the printing process through a holistic and creative lens.
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Affiliation(s)
- Mabel Barreiro Carpio
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada
| | - Mohammadhossein Dabaghi
- Firestone Institute for Respiratory Health, Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Julia Ungureanu
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada
| | - Martin R. Kolb
- Firestone Institute for Respiratory Health, Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Jeremy A. Hirota
- Firestone Institute for Respiratory Health, Division of Respirology, Department of Medicine, McMaster University, Hamilton, ON, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
- McMaster Immunology Research Centre, Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
- Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, BC, Canada
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
| | - Jose Manuel Moran-Mirabal
- Department of Chemistry and Chemical Biology, McMaster University, Hamilton, ON, Canada
- School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada
- Centre for Advanced Light Microscopy, McMaster University, Hamilton, ON, Canada
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20
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Zhang X, Yan Z, Guan G, Lu Z, Yan S, Du A, Wang L, Li Q. Polyethylene glycol diacrylate scaffold filled with cell-laden methacrylamide gelatin/alginate hydrogels used for cartilage repair. J Biomater Appl 2021; 36:1019-1032. [PMID: 34605703 DOI: 10.1177/08853282211044853] [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] [Indexed: 01/04/2023]
Abstract
Natural cartilage tissue has excellent mechanical properties and has certain cellular components. At this stage, it is a great challenge to produce cartilage scaffolds with excellent mechanical properties, biocompatibility, and biodegradability. Hydrogels are commonly used in tissue engineering because of their excellent biocompatibility; however, the mechanical properties of commonly used hydrogels are difficult to meet the requirements of making cartilage scaffolds. The mechanical properties of high concentration polyethylene glycol diacrylate (PEGDA) hydrogel are similar to those of natural cartilage, but its biocompatibility is poor. Low concentration hydrogel has better biocompatibility, but its mechanical properties are poor. In this study, two different hydrogels were combined to produce cartilage scaffolds with good mechanical properties and strong biocompatibility. First, the PEGDA grid scaffold was printed with light curing 3D printing technology, and then the low concentration GelMA/Alginate hydrogel with chondral cells was filled into the PEGDA grid scaffold. After a series of cell experiments, the filling hydrogel with the best biocompatibility was screened out, and finally the filled hydrogel with cells and excellent biocompatibility was obtained. Cartilage tissue engineering scaffolds with certain mechanical properties were found to have a tendency of cartilage formation in in vitro culture. Compared with the scaffold obtained by using a single hydrogel, this molding method can produce a tissue engineering scaffold with excellent mechanical properties on the premise of ensuring biocompatibility, which has a certain potential application value in the field of cartilage tissue engineering.
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Affiliation(s)
- Xiang Zhang
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
| | - Zhenhao Yan
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
| | - Guotao Guan
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
| | - Zijing Lu
- 70570Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shujie Yan
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
| | - Azhen Du
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
| | - Lixia Wang
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
| | - Qian Li
- 12636School of Mechanics & Safety Engineering, Zhengzhou University, Zhengzhou, China.,70570National Center for International Joint Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou, China.,70570Key Laboratory for Micro Molding Technology of Henan Province, Zhengzhou University, Zhengzhou, China
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21
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Clapacs Z, Neal S, Schuftan D, Tan X, Jiang H, Guo J, Rudra J, Huebsch N. Biocompatible and Enzymatically Degradable Gels for 3D Cellular Encapsulation under Extreme Compressive Strain. Gels 2021; 7:101. [PMID: 34449624 PMCID: PMC8395866 DOI: 10.3390/gels7030101] [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: 06/03/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 01/22/2023] Open
Abstract
Cell encapsulating scaffolds are necessary for the study of cellular mechanosensing of cultured cells. However, conventional scaffolds used for loading cells in bulk generally fail at low compressive strain, while hydrogels designed for high toughness and strain resistance are generally unsuitable for cell encapsulation. Here we describe an alginate/gelatin methacryloyl interpenetrating network with multiple crosslinking modes that is robust to compressive strains greater than 70%, highly biocompatible, enzymatically degradable and able to effectively transfer strain to encapsulated cells. In future studies, this gel formula may allow researchers to probe cellular mechanosensing in bulk at levels of compressive strain previously difficult to investigate.
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Affiliation(s)
- Zain Clapacs
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
| | - Sydney Neal
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
| | - David Schuftan
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
| | - Xiaohong Tan
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
| | - Huanzhu Jiang
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
| | - Jingxuan Guo
- Department of Mechanical Engineering and Material Science, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA;
| | - Jai Rudra
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
| | - Nathaniel Huebsch
- Department of Biomedical Engineering, McKelvey School of Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA; (Z.C.); (S.N.); (D.S.); (X.T.); (H.J.); (J.R.)
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22
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Fazal F, Raghav S, Callanan A, Koutsos V, Radacsi N. Recent advancements in the bioprinting of vascular grafts. Biofabrication 2021; 13. [PMID: 34102613 DOI: 10.1088/1758-5090/ac0963] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/08/2021] [Indexed: 02/07/2023]
Abstract
Recent advancements in the bioinks and three-dimensional (3D) bioprinting methods used to fabricate vascular constructs are summarized herein. Critical biomechanical properties required to fabricate an ideal vascular graft are highlighted, as well as various testing methods have been outlined to evaluate the bio-fabricated grafts as per the Food and Drug Administration (FDA) and International Organization for Standardization (ISO) guidelines. Occlusive artery disease and cardiovascular disease are the major causes of death globally. These diseases are caused by the blockage in the arteries, which results in a decreased blood flow to the tissues of major organs in the body, such as the heart. Bypass surgery is often performed using a vascular graft to re-route the blood flow. Autologous grafts represent a gold standard for such bypass surgeries; however, these grafts may be unavailable due to the previous harvesting or possess a poor quality. Synthetic grafts serve well for medium to large-sized vessels, but they fail when used to replace small-diameter vessels, generally smaller than 6 mm. Various tissue engineering approaches have been used to address the urgent need for vascular graft that can withstand hemodynamic blood pressure and has the ability to grow and remodel. Among these approaches, 3D bioprinting offers an attractive solution to construct patient-specific vessel grafts with layered biomimetic structures.
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Affiliation(s)
- Faraz Fazal
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, EH9 3FB Edinburgh, United Kingdom.,Department of Mechanical Engineering, University of Engineering and Technology, Lahore, (New Campus) Pakistan
| | - Sakshika Raghav
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, EH9 3FB Edinburgh, United Kingdom
| | - Anthony Callanan
- School of Engineering, Institute for Bioengineering, The University of Edinburgh, The King's Buildings, EH9 3JL Edinburgh, United Kingdom
| | - Vasileios Koutsos
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, EH9 3FB Edinburgh, United Kingdom
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, EH9 3FB Edinburgh, United Kingdom
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23
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Dhand AP, Galarraga JH, Burdick JA. Enhancing Biopolymer Hydrogel Functionality through Interpenetrating Networks. Trends Biotechnol 2021; 39:519-538. [PMID: 32950262 PMCID: PMC7960570 DOI: 10.1016/j.tibtech.2020.08.007] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 01/22/2023]
Abstract
Traditional hydrogels are strong candidates for biomedical applications; however, they may suffer from drawbacks such as weak mechanics, static properties, and an inability to fully replicate aspects of the cellular microenvironment. These challenges can be addressed through the incorporation of second networks to form interpenetrating polymer network (IPN) hydrogels. The objective of this review is to establish clear trends on the enhanced functionality achieved by incorporating secondary networks into traditional, biopolymer-based hydrogels. These include mechanical reinforcement, 'smart' systems that respond to external stimuli, and the ability to tune cell-material interactions. Through attention to network structure and chemistry, IPN hydrogels may advance to meet challenging criteria for a wide range of biomedical fields.
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Affiliation(s)
- Abhishek P Dhand
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jonathan H Galarraga
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
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24
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Aldana AA, Valente F, Dilley R, Doyle B. Development of 3D bioprinted GelMA-alginate hydrogels with tunable mechanical properties. ACTA ACUST UNITED AC 2021. [DOI: 10.1016/j.bprint.2020.e00105] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Shiwarski DJ, Hudson AR, Tashman JW, Feinberg AW. Emergence of FRESH 3D printing as a platform for advanced tissue biofabrication. APL Bioeng 2021; 5:010904. [PMID: 33644626 PMCID: PMC7889293 DOI: 10.1063/5.0032777] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/06/2021] [Indexed: 12/15/2022] Open
Abstract
In tissue engineering, an unresolved challenge is how to build complex 3D scaffolds in order to recreate the structure and function of human tissues and organs. Additive manufacturing techniques, such as 3D bioprinting, have the potential to build biological material with unprecedented spatial control; however, printing soft biological materials in air often results in poor fidelity. Freeform Reversible Embedding of Suspended Hydrogels (FRESH) is an embedded printing approach that solves this problem by extruding bioinks within a yield-stress support bath that holds the bioinks in place until cured. In this Perspective, we discuss the challenges of 3D printing soft and liquid-like bioinks and the emergence for FRESH and related embedded printing techniques as a solution. This includes the development of FRESH and embedded 3D printing within the bioprinting field and the rapid growth in adoption, as well as the advantages of FRESH printing for biofabrication and the new research results this has enabled. Specific focus is on the customizability of the FRESH printing technique where the chemical composition of the yield-stress support bath and aqueous phase crosslinker can all be tailored for printing a wide range of bioinks in complex 3D structures. Finally, we look ahead at the future of FRESH printing, discussing both the challenges and the opportunities that we see as the biofabrication field develops.
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Affiliation(s)
- Daniel J. Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Andrew R. Hudson
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Joshua W. Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
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26
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Aldana AA, Houben S, Moroni L, Baker MB, Pitet LM. Trends in Double Networks as Bioprintable and Injectable Hydrogel Scaffolds for Tissue Regeneration. ACS Biomater Sci Eng 2021; 7:4077-4101. [DOI: 10.1021/acsbiomaterials.0c01749] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ana A. Aldana
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Sofie Houben
- Advanced Functional Polymers Group, Department of Chemistry, Institute for Materials Research (IMO), Hasselt University, Martelarenlaan 42, 3500 Hasselt, Belgium
| | - Lorenzo Moroni
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Matthew B. Baker
- Department of Complex Tissue Regeneration, MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, 6211 LK Maastricht, The Netherlands
| | - Louis M. Pitet
- Advanced Functional Polymers Group, Department of Chemistry, Institute for Materials Research (IMO), Hasselt University, Martelarenlaan 42, 3500 Hasselt, Belgium
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27
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Chen S, Tan WS, Bin Juhari MA, Shi Q, Cheng XS, Chan WL, Song J. Freeform 3D printing of soft matters: recent advances in technology for biomedical engineering. Biomed Eng Lett 2020; 10:453-479. [PMID: 33194241 PMCID: PMC7655899 DOI: 10.1007/s13534-020-00171-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/04/2020] [Accepted: 09/16/2020] [Indexed: 12/20/2022] Open
Abstract
In the last decade, an emerging three-dimensional (3D) printing technique named freeform 3D printing has revolutionized the biomedical engineering field by allowing soft matters with or without cells to be printed and solidified with high precision regardless of their poor self-supportability. The key to this freeform 3D printing technology is the supporting matrices that hold the printed soft ink materials during omnidirectional writing and solidification. This approach not only overcomes structural design restrictions of conventional layer-by-layer printing but also helps to realize 3D printing of low-viscosity or slow-curing materials. This article focuses on the recent developments in freeform 3D printing of soft matters such as hydrogels, cells, and silicone elastomers, for biomedical engineering. Herein, we classify the reported freeform 3D printing systems into positive, negative, and functional based on the fabrication process, and discuss the rheological requirements of the supporting matrix in accordance with the rheological behavior of counterpart inks, aiming to guide development and evaluation of new freeform printing systems. We also provide a brief overview of various material systems used as supporting matrices for freeform 3D printing systems and explore the potential applications of freeform 3D printing systems in different areas of biomedical engineering.
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Affiliation(s)
- Shengyang Chen
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Wen See Tan
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Muhammad Aidil Bin Juhari
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Qian Shi
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Xue Shirley Cheng
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore, 639798 Singapore
- Department of Chemical Engineering, University of Bath, Claverton Down, Bath, BA2 7AY UK
| | - Wai Lee Chan
- School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798 Singapore
| | - Juha Song
- School of Chemical and Biological Engineering, Nanyang Technological University, Singapore, 639798 Singapore
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798 Singapore
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28
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Young AT, White OC, Daniele MA. Rheological Properties of Coordinated Physical Gelation and Chemical Crosslinking in Gelatin Methacryloyl (GelMA) Hydrogels. Macromol Biosci 2020; 20:e2000183. [PMID: 32856384 DOI: 10.1002/mabi.202000183] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/13/2020] [Indexed: 12/18/2022]
Abstract
Synthetically modified proteins, such as gelatin methacryloyl (GelMA), are growing in popularity for bioprinting and biofabrication. GelMA is a photocurable macromer that can rapidly form hydrogels, while also presenting bioactive peptide sequences for cellular adhesion and proliferation. The mechanical properties of GelMA are highly tunable by modifying the degree of substitution via synthesis conditions, though the effects of source material and thermal gelation have not been comprehensively characterized for lower concentration gels. Herein, the effects of animal source and processing sequence are investigated on scaffold mechanical properties. Hydrogels of 4-6 wt% are characterized. Depending on the temperature at crosslinking, the storage moduli for GelMA derived from pigs, cows, and cold-water fish range from 723 to 7340 Pa, 516 to 3484 Pa, and 294 to 464 Pa, respectively. The maximum storage moduli are achieved only by coordinated physical gelation and chemical crosslinking. In this method, the classic thermo-reversible gelation of gelatin occurs when GelMA is cooled below a thermal transition temperature, which is subsequently "locked in" by chemical crosslinking via photocuring. The effects of coordinated physical gelation and chemical crosslinking are demonstrated by precise photopatterning of cell-laden microstructures, inducing different cellular behavior depending on the selected mechanical properties of GelMA.
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Affiliation(s)
- Ashlyn T Young
- Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina, Chapel Hill, 911 Oval Dr., Raleigh, NC, 27695, USA
| | - Olivia C White
- Department of Electrical & Computer Engineering, North Carolina State University, 890 Oval Dr., Raleigh, NC, 27695, USA
| | - Michael A Daniele
- Joint Department of Biomedical Engineering, North Carolina State University and University of North Carolina, Chapel Hill, 911 Oval Dr., Raleigh, NC, 27695, USA.,Department of Electrical & Computer Engineering, North Carolina State University, 890 Oval Dr., Raleigh, NC, 27695, USA
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29
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Xu H, Casillas J, Krishnamoorthy S, Xu C. Effects of Irgacure 2959 and lithium phenyl-2,4,6-trimethylbenzoylphosphinate on cell viability, physical properties, and microstructure in 3D bioprinting of vascular-like constructs. Biomed Mater 2020; 15:055021. [DOI: 10.1088/1748-605x/ab954e] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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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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Investigation of gelatin methacrylate working curves in dynamic optical projection stereolithography of vascular-like constructs. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109487] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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32
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Fan D, Staufer U, Accardo A. Engineered 3D Polymer and Hydrogel Microenvironments for Cell Culture Applications. Bioengineering (Basel) 2019; 6:E113. [PMID: 31847117 PMCID: PMC6955903 DOI: 10.3390/bioengineering6040113] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/13/2019] [Accepted: 12/06/2019] [Indexed: 12/28/2022] Open
Abstract
The realization of biomimetic microenvironments for cell biology applications such as organ-on-chip, in vitro drug screening, and tissue engineering is one of the most fascinating research areas in the field of bioengineering. The continuous evolution of additive manufacturing techniques provides the tools to engineer these architectures at different scales. Moreover, it is now possible to tailor their biomechanical and topological properties while taking inspiration from the characteristics of the extracellular matrix, the three-dimensional scaffold in which cells proliferate, migrate, and differentiate. In such context, there is therefore a continuous quest for synthetic and nature-derived composite materials that must hold biocompatible, biodegradable, bioactive features and also be compatible with the envisioned fabrication strategy. The structure of the current review is intended to provide to both micro-engineers and cell biologists a comparative overview of the characteristics, advantages, and drawbacks of the major 3D printing techniques, the most promising biomaterials candidates, and the trade-offs that must be considered in order to replicate the properties of natural microenvironments.
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Affiliation(s)
| | | | - Angelo Accardo
- Department of Precision and Microsystems Engineering, Delft University of Technology, Mekelweg 2, 2628 CD Delft, The Netherlands; (D.F.); (U.S.)
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33
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Effects of Encapsulated Cells on the Physical-Mechanical Properties and Microstructure of Gelatin Methacrylate Hydrogels. Int J Mol Sci 2019; 20:ijms20205061. [PMID: 31614713 PMCID: PMC6834176 DOI: 10.3390/ijms20205061] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 01/01/2023] Open
Abstract
Gelatin methacrylate (GelMA) has been gaining popularity in recent years as a photo-crosslinkable biomaterial widely used in a variety of bioprinting and tissue engineering applications. Several studies have established the effects of process-based and material-based parameters on the physical–mechanical properties and microstructure of GelMA hydrogels. However, the effect of encapsulated cells on the physical–mechanical properties and microstructure of GelMA hydrogels has not been fully understood. In this study, 3T3 fibroblasts were encapsulated at different cell densities within the GelMA hydrogels and incubated over 96 h. The effects of encapsulated cells were investigated in terms of mechanical properties (tensile modulus and strength), physical properties (swelling and degradation), and microstructure (pore size). Cell viability was also evaluated to confirm that most cells were alive during the incubation. It was found that with an increase in cell density, the mechanical properties decreased, while the degradation and the pore size increased.
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34
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Zhu J, Jiang G, Song G, Liu T, Cao C, Yang Y, Zhang Y, Hong W. Incorporation of ZnO/Bioactive Glass Nanoparticles into Alginate/Chitosan Composite Hydrogels for Wound Closure. ACS APPLIED BIO MATERIALS 2019; 2:5042-5052. [DOI: 10.1021/acsabm.9b00727] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jiangying Zhu
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
| | - Guohua Jiang
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
| | - Gao Song
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
| | - Tianqi Liu
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
| | - Cong Cao
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
| | - Yuhui Yang
- National Engineering Laboratory for Textile Fiber Materials and Processing Technology (Zhejiang), Hangzhou 310018, China
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology (ATMT), Ministry of Education, Hangzhou, Zhejiang 310018, China
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