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Goodarzi Hosseinabadi H, Biswas A, Bhusal A, Yousefinejad A, Lall A, Zimmermann WH, Miri AK, Ionov L. 4D-Printable Photocrosslinkable Polyurethane-Based Inks for Tissue Scaffold and Actuator Applications. Small 2024; 20:e2306387. [PMID: 37771189 PMCID: PMC10922657 DOI: 10.1002/smll.202306387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Indexed: 09/30/2023]
Abstract
4D printing recently emerges as an exciting evolution of conventional 3D printing, where a printed construct can quickly transform in response to a specific stimulus to switch between a temporary variable state and an original state. In this work, a photocrosslinkable polyethylene-glycol polyurethane ink is synthesized for light-assisted 4D printing of smart materials. The molecular weight distribution of the ink monomers is tunable by adjusting the copolymerization reaction time. Digital light processing (DLP) technique is used to program a differential swelling response in the printed constructs after humidity variation. Bioactive microparticles are embedded into the ink and the improvement of biocompatibility of the printed constructs is demonstrated for tissue engineering applications. Cell studies reveal above 90% viability in 1 week and ≈50% biodegradability after 4 weeks. Self-folding capillary scaffolds, dynamic grippers, and film actuators are made and activated in a humid environment. The approach offers a versatile platform for the fabrication of complex constructs. The ink can be used in tissue engineering and actuator applications, making the ink a promising avenue for future research.
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Affiliation(s)
- Hossein Goodarzi Hosseinabadi
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
- Institute for Organic and Biomolecular Chemistry, Department of Chemistry, University of Göttingen, 37077, Göttingen, Germany
| | - Arpan Biswas
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
| | - Anant Bhusal
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, 08028, USA
| | - Ali Yousefinejad
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
| | - Aastha Lall
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
| | - Wolfram-Hubertus Zimmermann
- Institute of Pharmacology and Toxicology, University Medical Center Göttingen, Robert-Koch-Str. 40, 37075, Göttingen, Germany
- German Center for Cardiovascular Research (DZHK), partner site Göttingen, Germany
- Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, 37099, Göttingen, Germany
- German Center for Neurodegenerative Diseases (DZNE), 37099, Göttingen, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Göttingen, Germany
| | - Amir K Miri
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Rd., Glassboro, NJ, 08028, USA
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr. Martin Luther King Jr. Blvd., Newark, NJ, 07102, USA
- Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, 323 Dr. Martin Luther King Jr. Blvd, Newark, NJ, 07102, USA
| | - Leonid Ionov
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447, Bayreuth, Germany
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2
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Kargozar S, Moghanian A, Rashvand A, Miri AK, Hamzehlou S, Baino F, Mozafari M, Wang AZ. Nanostructured bioactive glasses: A bird's eye view on cancer therapy. Wiley Interdiscip Rev Nanomed Nanobiotechnol 2023; 15:e1905. [PMID: 37259946 DOI: 10.1002/wnan.1905] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 04/27/2023] [Accepted: 05/03/2023] [Indexed: 06/02/2023]
Abstract
Bioactive glasses (BGs) arewell known for their successful applications in tissue engineering and regenerative medicine. Recent experimental studies have shown their potential usability in oncology, either alone or in combination with other biocompatible materials, such as biopolymers. Direct contact with BG particles has been found to cause toxicity and death in specific cancer cells (bone-derived neoplastic stromal cells) in vitro. Nanostructured BGs (NBGs) can be doped with anticancer elements, such as gallium, to enhance their toxic effects against tumor cells. However, the molecular mechanisms and intracellular targets for anticancer compositions of NBGs require further clarification. NBGs have been successfully evaluated for use in various well-established cancer treatment strategies, including cancer hyperthermia, phototherapy, and anticancer drug delivery. Existing results indicate that NBGs not only enhance cancer cell death, but can also participate in the regeneration of lost healthy tissues. However, the application of NBGs in oncology is still in its early stages, and numerous unanswered questions must be addressed. For example, the impact of the composition, biodegradation, size, and morphology of NBGs on their anticancer efficacy should be defined for each type of cancer and treatment strategy. Moreover, it should be more clearly assessed whether NBGs can shrink tumors, slow/stop cancer progression, or cure cancer completely. In this regard, the use of computational studies (in silico methods) is highly recommended to design the most effective glass formulations for cancer therapy approaches and to predict, to some extent, the relevant properties, efficacy, and outcomes. This article is categorized under: Implantable Materials and Surgical Technologies > Nanomaterials and Implants Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease.
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Affiliation(s)
- Saeid Kargozar
- Department of Radiation Oncology, Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas, USA
- Tissue Engineering Research Group (TERG), Department of Anatomy and Cell Biology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Moghanian
- Department of Materials Engineering, Imam Khomeini International University, Qazvin, Iran
| | - Ali Rashvand
- Department of Materials Engineering, Imam Khomeini International University, Qazvin, Iran
| | - Amir K Miri
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey, USA
| | - Sepideh Hamzehlou
- Department of Dermatology, UT Southwestern Medical Center, Dallas, Texas, USA
| | - Francesco Baino
- Institute of Materials Physics and Engineering, Applied Science and Technology Department, Politecnico di Torino, Torino, Italy
| | - Masoud Mozafari
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, Oulu, Finland
| | - Andrew Z Wang
- Department of Radiation Oncology, Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, Texas, USA
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Dogan E, Holshue C, Bhusal A, Shukla R, Miri AK. Cell encapsulation in gelatin methacryloyl bioinks impairs microscale diffusion properties. Front Bioeng Biotechnol 2023; 11:1193970. [PMID: 37731769 PMCID: PMC10507472 DOI: 10.3389/fbioe.2023.1193970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 08/10/2023] [Indexed: 09/22/2023] Open
Abstract
Light-assisted bioprinted gelatin methacryloyl (GelMA) constructs have been used for cell-laden microtissues and organoids. GelMA can be loaded by desired cells, which can regulate the biophysical properties of bioprinted constructs. We study how the degree of methacrylation (MA degree), GelMA mass concentration, and cell density change mass transport properties. We introduce a fluorescent-microscopy-based method of biotransport testing with improved sensitivity compared to the traditional particle tracking methods. The diffusion capacity of GelMA with a higher MA significantly decreased compared to a lower MA. Opposed to a steady range of linear elastic moduli, the diffusion coefficient in GelMA varied when cell densities ranged from 0 to 10 × 106 cells/ml. A comparative study of different cell sizes showed a higher diffusivity coefficient for the case of larger cells. The results of this study can help bioengineers and scientists to better control the biotransport characteristics in light-assisted bioprinted microtissues and organoids.
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Affiliation(s)
- Elvan Dogan
- Advanced Biofabrication Laboratory, Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Christina Holshue
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ, United States
| | - Anant Bhusal
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ, United States
| | - Roshni Shukla
- Advanced Biofabrication Laboratory, Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Amir K. Miri
- Advanced Biofabrication Laboratory, Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ, United States
- Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ, United States
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Hosseinabadi HG, Nieto D, Yousefinejad A, Fattel H, Ionov L, Miri AK. Ink Material Selection and Optical Design Considerations in DLP 3D Printing. Appl Mater Today 2023; 30:101721. [PMID: 37576708 PMCID: PMC10421610 DOI: 10.1016/j.apmt.2022.101721] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Digital light processing (DLP) 3D printing has become a powerful manufacturing tool for the fast fabrication of complex functional structures. The rapid progress in DLP printing has been linked to research on optical design factors and ink selection. This critical review highlights the main challenges in the DLP printing of photopolymerizable inks. The kinetics equations of photopolymerization reaction in a DLP printer are solved, and the dependence of curing depth on the process optical parameters and ink chemical properties are explained. Developments in DLP platform design and ink selection are summarized, and the roles of monomer structure and molecular weight on DLP printing resolution are shown by experimental data. A detailed guideline is presented to help engineers and scientists to select inks and optical parameters for fabricating functional structures for multi-material and 4D printing applications.
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Affiliation(s)
- Hossein G. Hosseinabadi
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Daniel Nieto
- Complex Tissue Regeneration Department, MERLN Institute for Technology Inspired Regenerative Medicine, Universiteitssingel 40, 6229ER Maastricht, The Netherlands
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, NJ 07102, USA
| | - Ali Yousefinejad
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Hoda Fattel
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, NJ 07102, USA
| | - Leonid Ionov
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Amir K. Miri
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, NJ 07102, USA
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Bhusal A, Dogan E, Nieto D, Mousavi Shaegh SA, Cecen B, Miri AK. 3D Bioprinted Hydrogel Microfluidic Devices for Parallel Drug Screening. ACS Appl Bio Mater 2022; 5:4480-4492. [PMID: 36037061 DOI: 10.1021/acsabm.2c00578] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Conventional high-throughput screening (HTS) platforms suffer from the need for large cell volumes, high reagent consumption, significant assembly cost, and handling efforts. The assembly of three-dimensional (3D) bioprinted hydrogel-based microfluidic chips within platforms can address these problems. We present a continuous and seamless manufacturing approach to create a bioprinted microfluidic chips with a circular pattern scalable toward HTS platforms. Digital light processing 3D bioprinting is used to tune the local permeability of our chip, made of polyethylene glycol diacrylate and cell-laden gelatin methacryloyl, for creating predefined gradients of biochemical properties. We measured the flow-induced physical characteristics, the mass transport of drug agents, and the biological features of the proposed chip. We measured reactive oxygen species from the encapsulated cells through an integrated process and showed the capacity of the hydrogel-based chip for creating drug/agent gradients. This work introduces a chip design based on a hydrogel that can be changed and could be used for modern HTS platforms such as in vitro organoids.
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Affiliation(s)
- Anant Bhusal
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
| | - Elvan Dogan
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, New Jersey 07102, United States
| | - Daniel Nieto
- Department Faculty of Health, Medicine and Life Sciences, Maastricht University, Universiteitssingel 40, Maastricht 6229 ER, Netherlands
| | - Seyed Ali Mousavi Shaegh
- Orthopedic Research Center, Mashhad University of Medical Sciences, P.O. Box 9187145785, Mashhad 9187145785, Iran
- Clinical Research Unit, Ghaem Hospital, Mashhad University of Medical Sciences, P.O. Box 91735451, Mashhad 91735451, Iran
| | - Berivan Cecen
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
- Department of Biomedical Engineering, Rowan University, Glassboro, New Jersey 08028, United States
| | - Amir K Miri
- Department of Mechanical Engineering, Rowan University, 201 Mullica Hill Road, Glassboro, New Jersey 08028, United States
- Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, New Jersey 07102, United States
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Moghanian A, Cecen B, Nafisi N, Miri Z, Rosenzweig DH, Miri AK. Review of Current Literature for Vascularized Biomaterials in Dental Repair. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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7
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Cecen B, Bal-Ozturk A, Yasayan G, Alarcin E, Kocak P, Tutar R, Kozaci LD, Shin SR, Miri AK. Selection of natural biomaterials for micro-tissue and organ-on-chip models. J Biomed Mater Res A 2022; 110:1147-1165. [PMID: 35102687 PMCID: PMC10700148 DOI: 10.1002/jbm.a.37353] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Abstract
The desired organ in micro-tissue models of organ-on-a-chip (OoC) devices dictates the optimum biomaterials, divided into natural and synthetic biomaterials. They can resemble biological tissues' biological functions and architectures by constructing bioactivity of macromolecules, cells, nanoparticles, and other biological agents. The inclusion of such components in OoCs allows them having biological processes, such as basic biorecognition, enzymatic cleavage, and regulated drug release. In this report, we review natural-based biomaterials that are used in OoCs and their main characteristics. We address the preparation, modification, and characterization methods of natural-based biomaterials and summarize recent reports on their applications in the design and fabrication of micro-tissue models. This article will help bioengineers select the proper biomaterials based on developing new technologies to meet clinical expectations and improve patient outcomes fusing disease modeling.
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Affiliation(s)
- Berivan Cecen
- Department of Mechanical Engineering, Rowan University, Glassboro, New Jersey, USA
| | - Ayca Bal-Ozturk
- Department of Analytical Chemistry, Faculty of Pharmacy, Istinye University, Istanbul, Turkey
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University, Istanbul, Turkey
| | - Gokcen Yasayan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Emine Alarcin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Marmara University, Istanbul, Turkey
| | - Polen Kocak
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Istanbul, Turkey
| | - Rumeysa Tutar
- Department of Chemistry, Faculty of Engineering, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Leyla Didem Kozaci
- Faculty of Medicine, Department of Medical Biochemistry, Ankara Yildirim Beyazit University, Ankara, Turkey
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women’s Hospital, Cambridge, Massachusetts, USA
| | - Amir K. Miri
- Department of Mechanical Engineering, Rowan University, Glassboro, New Jersey, USA
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, New Jersey, USA
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Abstract
Digital light processing (DLP) bioprinting has been widely introduced as a fast and robust biofabrication method in tissue engineering. The technique holds a great promise for creating tissue models because it can replicate the resolution and complexity of natural tissues and constructs. A DLP system projects 2D images onto layers of bioink using a digital photomask. The resolution of DLP bioprinting strongly depends on the characteristics of the projected light and the photo-cross-linking response of the bioink microenvironment. In this review, we present a summary of DLP fundamentals with a focus on bioink properties, photoinitiator selection, and light characteristics in resolution of bioprinted constructs. A simple guideline is provided for bioengineers interested in using DLP platforms and customizing technical specifications for its design. The literature review reveals the promising future of DLP bioprinting for disease modeling and biofabrication.
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Affiliation(s)
- Hossein Goodarzi Hosseinabadi
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
| | - Elvan Dogan
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Amir K. Miri
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
- Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Leonid Ionov
- Faculty of Engineering Sciences, Department of Biofabrication, University of Bayreuth, Ludwig Thoma Str. 36A, 95447 Bayreuth, Germany
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Talluri DJS, Nguyen H, Avazmohammadi R, Miri AK. Bioink Rheology Regulates Stability of Bioprinted Strands. J Biomech Eng 2022; 144:1131087. [PMID: 34993547 DOI: 10.1115/1.4053404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Indexed: 11/08/2022]
Abstract
Extrusion three-dimensional (3D) bioprinting typically requires an ad-hoc trial-and-error optimization of the bioink composition towards enhanced resolution. The bioink solutions are solidified after leaving cone-shaped or cylindrical nozzles. The presence of bioink instability not only hampers the extrusion resolution but also affects the behavior of embedded cellular components. This is a key factor in selecting bioinks and bioprinting design parameters for well-established desktop and handheld bioprinters. In this work, we developed an analytical solution for the process of bioink deposition and compared its predictions against numerical simulations of the deposition. We estimated the onset of bioink instability as a function of bioink rheological properties and nozzle geometry. Both analytical and simulation results demonstrated that enhancing shear-thinning behavior of the bioink stabilizes the printing process whereas bioink shear-thickening behavior induces an opposite effect through extending the toe region of the deposition. The present study serves as a benchmark for detailed simulations of the extrusion process for optimal bioprinting.
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Affiliation(s)
| | - HuanTan Nguyen
- The University of Texas Health Science Center at Houston, McGovern Medical School, Houston, TX 77030
| | - Reza Avazmohammadi
- Department of Biomedical Engineering, University of Texas A&M, College Station, TX 77843; Department of Cardiovascular Sciences, Houston Methodist Academic Institute, Houston, TX, 77030; J. Mike Walker '66 Department of Mechanical Engineering, University of Texas A&M, College Station, TX 77843
| | - Amir K Miri
- School of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102
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Bhusal A, Dogan E, Nguyen HA, Labutina O, Nieto D, Khademhosseini A, Miri AK. Multi-material digital light processing bioprinting of hydrogel-based microfluidic chips. Biofabrication 2021; 14:10.1088/1758-5090/ac2d78. [PMID: 34614486 PMCID: PMC10700126 DOI: 10.1088/1758-5090/ac2d78] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 10/06/2021] [Indexed: 11/12/2022]
Abstract
Recent advancements in digital-light-processing (DLP)-based bioprinting and hydrogel engineering have enabled novel developments in organs-on-chips. In this work, we designed and developed a multi-material, DLP-based bioprinter for rapid, one-step prototyping of hydrogel-based microfluidic chips. A composite hydrogel bioink based on poly-ethylene-glycol-diacrylate (PEGDA) and gelatin methacryloyl (GelMA) was optimized through varying the bioprinting parameters such as light exposure time, bioink composition, and layer thickness. We showed a wide range of mechanical properties of the microfluidic chips for various ratios of PEGDA:GelMA. Microfluidic features of hydrogel-based chips were then tested using dynamic flow experiments. Human-derived tumor cells were encapsulated in 3D bioprinted structures to demonstrate their bioactivity and cell-friendly environment. Cell seeding experiments then validated the efficacy of the selected bioinks for vascularized micro-tissues. Our biofabrication approach offers a useful tool for the rapid integration of micro-tissue models into organs-on-chips and high-throughput drug screening platforms.
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Affiliation(s)
- Anant Bhusal
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028
| | - Elvan Dogan
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028
| | - Hai-Anh Nguyen
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028
| | - Olga Labutina
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028
| | - Daniel Nieto
- Photonics4life Research Group, Department of Physics, University of Santiago de Compostela, A Coruña, Spain
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, CA 90024, USA
- Department of Radiology and Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, CA 90095 USA
- Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California – Los Angeles, Los Angeles, CA 90095, USA
| | - Amir K. Miri
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA
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Dogan E, Kisim A, Bati-Ayaz G, Kubicek GJ, Pesen-Okvur D, Miri AK. Cancer Stem Cells in Tumor Modeling: Challenges and Future Directions. Adv NanoBio Res 2021. [DOI: 10.1002/anbr.202170111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Elvan Dogan
- Department of Mechanical Engineering Rowan University Glassboro NJ 08028 USA
| | - Asli Kisim
- Department of Molecular Biology & Genetics Izmir Institute of Technology Gulbahce Kampusu, Urla Izmir 35430 Turkey
| | - Gizem Bati-Ayaz
- Biotechnology and Bioengineering Izmir Institute of Technology Izmir Turkey
| | - Gregory J. Kubicek
- Department of Radiation Oncology MD Anderson Cancer Center at Cooper 2 Cooper Plaza Camden NJ 08103 USA
| | - Devrim Pesen-Okvur
- Department of Molecular Biology & Genetics Izmir Institute of Technology Gulbahce Kampusu, Urla Izmir 35430 Turkey
- Biotechnology and Bioengineering Izmir Institute of Technology Izmir Turkey
| | - Amir K. Miri
- Department of Mechanical Engineering Rowan University Glassboro NJ 08028 USA
- School of Medical Engineering, Science, and Health Rowan University Camden NJ 08103 USA
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Dogan E, Kisim A, Bati-Ayaz G, Kubicek GJ, Pesen-Okvur D, Miri AK. Cancer Stem Cells in Tumor Modeling: Challenges and Future Directions. Adv Nanobiomed Res 2021; 1:2100017. [PMID: 34927168 PMCID: PMC8680587 DOI: 10.1002/anbr.202100017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Microfluidic tumors-on-chips models have revolutionized anticancer therapeutic research by creating an ideal microenvironment for cancer cells. The tumor microenvironment (TME) includes various cell types and cancer stem cells (CSCs), which are postulated to regulate the growth, invasion, and migratory behavior of tumor cells. In this review, the biological niches of the TME and cancer cell behavior focusing on the behavior of CSCs are summarized. Conventional cancer models such as three-dimensional cultures and organoid models are reviewed. Opportunities for the incorporation of CSCs with tumors-on-chips are then discussed for creating tumor invasion models. Such models will represent a paradigm shift in the cancer community by allowing oncologists and clinicians to predict better which cancer patients will benefit from chemotherapy treatments.
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Affiliation(s)
- Elvan Dogan
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028
| | - Asli Kisim
- Department of Molecular Biology & Genetics, Izmir Institute of Technology, Gulbahce Kampusu, Urla, Izmir, 35430, Turkey
| | - Gizem Bati-Ayaz
- Biotechnology and Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Gregory J. Kubicek
- Department of Radiation Oncology, MD Anderson Cancer Center at Cooper, 2 Cooper Plaza, Camden, NJ 08103
| | - Devrim Pesen-Okvur
- Department of Molecular Biology & Genetics, Izmir Institute of Technology, Gulbahce Kampusu, Urla, Izmir, 35430, Turkey; Biotechnology and Bioengineering, Izmir Institute of Technology, Izmir, Turkey
| | - Amir K. Miri
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028; School of Medical Engineering, Science, and Health, Rowan University, Camden, NJ 08103
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13
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Cecen B, Karavasili C, Nazir M, Bhusal A, Dogan E, Shahriyari F, Tamburaci S, Buyukoz M, Kozaci LD, Miri AK. Multi-Organs-on-Chips for Testing Small-Molecule Drugs: Challenges and Perspectives. Pharmaceutics 2021; 13:1657. [PMID: 34683950 PMCID: PMC8540732 DOI: 10.3390/pharmaceutics13101657] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/30/2021] [Accepted: 10/03/2021] [Indexed: 12/13/2022] Open
Abstract
Organ-on-a-chip technology has been used in testing small-molecule drugs for screening potential therapeutics and regulatory protocols. The technology is expected to boost the development of novel therapies and accelerate the discovery of drug combinations in the coming years. This has led to the development of multi-organ-on-a-chip (MOC) for recapitulating various organs involved in the drug-body interactions. In this review, we discuss the current MOCs used in screening small-molecule drugs and then focus on the dynamic process of drug absorption, distribution, metabolism, and excretion. We also address appropriate materials used for MOCs at low cost and scale-up capacity suitable for high-performance analysis of drugs and commercial high-throughput screening platforms.
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Affiliation(s)
- Berivan Cecen
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA; (A.B.); (E.D.); (A.K.M.)
- Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul 34010, Turkey
| | - Christina Karavasili
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece;
| | - Mubashir Nazir
- Department of Microbiology, Sher-i-Kashmir Institute of Medical Sciences, Srinagar 190011, India;
| | - Anant Bhusal
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA; (A.B.); (E.D.); (A.K.M.)
| | - Elvan Dogan
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA; (A.B.); (E.D.); (A.K.M.)
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
| | - Fatemeh Shahriyari
- Institute of Health Science, Department of Translational Medicine, Ankara Yildirim Beyazit University, Ankara 06800, Turkey;
| | - Sedef Tamburaci
- Izmir Institute of Technology, Graduate Program of Biotechnology and Bioengineering, Gulbahce Campus, Izmir 35430, Turkey;
- Izmir Institute of Technology, Department of Chemical Engineering, Gulbahce Campus, Izmir 35430, Turkey
| | - Melda Buyukoz
- Care of Elderly Program, Vocational School of Health Services, Izmir Democracy University, Izmir 35140, Turkey;
| | - Leyla Didem Kozaci
- Department of Medical Biochemistry, Faculty of Medicine, Ankara Yildirim Beyazit University, Ankara 06800, Turkey;
| | - Amir K. Miri
- Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA; (A.B.); (E.D.); (A.K.M.)
- Department of Biomedical Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
- Department of Mechanical and Industrial Engineering, New Jersey Institute of Technology, Newark, NJ 07102, USA
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14
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Izbudak B, Cecen B, Anaya I, Miri AK, Bal-Ozturk A, Karaoz E. Layered double hydroxide-based nanocomposite scaffolds in tissue engineering applications. RSC Adv 2021; 11:30237-30252. [PMID: 35480250 PMCID: PMC9041101 DOI: 10.1039/d1ra03978d] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 08/31/2021] [Indexed: 12/13/2022] Open
Abstract
Layered double hydroxides (LDHs), when incorporated into biomaterials, provide a tunable composition, controllable particle size, anion exchange capacity, pH-sensitive solubility, high-drug loading efficiency, efficient gene and drug delivery, controlled release and effective intracellular uptake, natural biodegradability in an acidic medium, and negligible toxicity. In this review, we study potential applications of LDH-based nanocomposite scaffolds for tissue engineering. We address how LDHs provide new solutions for nanostructure stability and enhance in vivo studies' success.
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Affiliation(s)
- Burcin Izbudak
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University Istanbul Turkey
| | - Berivan Cecen
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University Glassboro NJ 08028 USA.,School of Medical Engineering, Science and Health, Rowan University Camden NJ 08103 USA.,Department of Molecular Biology and Genetics, Faculty of Engineering and Natural Sciences, Istinye University 34010 Zeytinburnu Istanbul Turkey
| | - Ingrid Anaya
- Department of Bioengineering, Tecnológico de Monterrey, Campus Monterrey CP 64849 Monterrey Nuevo León México
| | - Amir K Miri
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University Glassboro NJ 08028 USA.,School of Medical Engineering, Science and Health, Rowan University Camden NJ 08103 USA
| | - Ayca Bal-Ozturk
- 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
| | - Erdal Karaoz
- Department of Stem Cell and Tissue Engineering, Institute of Health Sciences, Istinye University Istanbul Turkey .,Department of Histology and Embryology, Faculty of Medicine, Istinye University Istanbul Turkey.,Center for Regenerative Medicine and Stem Cell Research and Manufacturing (LivMedCell) Istanbul Turkey
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15
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Hassan S, Cecen B, Peña-Garcia R, Marciano FR, Miri AK, Fattahi A, Karavasili C, Sebastian S, Zaidi H, Lobo AO. Survival and Proliferation under Severely Hypoxic Microenvironments Using Cell-Laden Oxygenating Hydrogels. J Funct Biomater 2021; 12:jfb12020030. [PMID: 34063270 PMCID: PMC8167601 DOI: 10.3390/jfb12020030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/18/2021] [Accepted: 04/27/2021] [Indexed: 12/22/2022] Open
Abstract
Different strategies have been employed to provide adequate nutrients for engineered living tissues. These have mainly revolved around providing oxygen to alleviate the effects of chronic hypoxia or anoxia that result in necrosis or weak neovascularization, leading to failure of artificial tissue implants and hence poor clinical outcome. While different biomaterials have been used as oxygen generators for in vitro as well as in vivo applications, certain problems have hampered their wide application. Among these are the generation and the rate at which oxygen is produced together with the production of the reaction intermediates in the form of reactive oxygen species (ROS). Both these factors can be detrimental for cell survival and can severely affect the outcome of such studies. Here we present calcium peroxide (CPO) encapsulated in polycaprolactone as oxygen releasing microparticles (OMPs). While CPO releases oxygen upon hydrolysis, PCL encapsulation ensures that hydrolysis takes place slowly, thereby sustaining prolonged release of oxygen without the stress the bulk release can endow on the encapsulated cells. We used gelatin methacryloyl (GelMA) hydrogels containing these OMPs to stimulate survival and proliferation of encapsulated skeletal myoblasts and optimized the OMP concentration for sustained oxygen delivery over more than a week. The oxygen releasing and delivery platform described in this study opens up opportunities for cell-based therapeutic approaches to treat diseases resulting from ischemic conditions and enhance survival of implants under severe hypoxic conditions for successful clinical translation.
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Affiliation(s)
- Shabir Hassan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
- Correspondence: (S.H.); (A.O.L.)
| | - Berivan Cecen
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
| | - Ramon Peña-Garcia
- Materials Science and Engineering Graduate Program, UFPI-Federal University of Piaui, Teresina 64049-55, PI, Brazil; (R.P.-G.); (F.R.M.)
- Academic Unit of Cabo de Santo Agostinho, Federal Rural University of Pernambuco, Cabo de Santo Agostinho 52171-900, PE, Brazil
| | - Fernanda Roberta Marciano
- Materials Science and Engineering Graduate Program, UFPI-Federal University of Piaui, Teresina 64049-55, PI, Brazil; (R.P.-G.); (F.R.M.)
- Department of Physics, Federal University of Piaui, Teresina 64049-550, PI, Brazil
| | - Amir K. Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Engineering Hall, Glassboro, NJ 08028, USA
| | - Ali Fattahi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
- Center for Applied NanoBioscience and Medicine, College of Medicine-Phoenix, University of Arizona, Phoenix, AZ 85004, USA
| | - Christina Karavasili
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Shikha Sebastian
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
| | - Hamza Zaidi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
| | - Anderson Oliveira Lobo
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA; (B.C.); (A.K.M.); (A.F.); (C.K.); (S.S.); (H.Z.)
- Materials Science and Engineering Graduate Program, UFPI-Federal University of Piaui, Teresina 64049-55, PI, Brazil; (R.P.-G.); (F.R.M.)
- LIMAV-Interdisciplinary Laboratory for Advanced Materials, UFPI-Federal University of Piaui, Teresina 64049-550, PI, Brazil
- Correspondence: (S.H.); (A.O.L.)
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16
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Abstract
The rapid growth and disruptive potentials of three-dimensional (3D) printing demand further research for addressing fundamental fabrication concepts and enabling engineers to realize the capabilities of 3D printing technologies. There is a trend to use these capabilities to develop materials that derive some of their properties via their structural organization rather than their intrinsic constituents, sometimes referred to as mechanical metamaterials. Such materials show qualitatively different mechanical behaviors despite using the same material composition, such as ultra-lightweight, super-elastic, and auxetic structures. In this work, we review current advancements in the design and fabrication of multi-scale advanced structures with properties heretofore unseen in well-established materials. We classify the fabrication methods as conventional methods, additive manufacturing techniques, and 4D printing. Following a comprehensive comparison of different fabrication methods, we suggest some guidelines on the selection of fabrication parameters to construct meta-biomaterials for tissue engineering. The parameters include multi-material capacity, fabrication resolution, prototyping speed, and biological compatibility.
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Affiliation(s)
- Elvan Dogan
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, United States
| | - Anant Bhusal
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, United States
| | - Berivan Cecen
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, United States
| | - Amir K. Miri
- Biofabrication Lab, Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, United States
- School of Medical Engineering, Science, and Health, Rowan University, Camden, NJ 08103, United States
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17
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Abstract
Recent advances in bioprinting technologies have enabled rapid manufacturing of organ-on-chip models along with biomimetic tissue microarchitectures. Bioprinting techniques can be used to integrate microfluidic channels and flow connections in organ-on-chip models. We review bioprinters in two categories of nozzle-based and optical-based methods, and then discuss their fabrication parameters such as resolution, replication fidelity, fabrication time, and cost for micro-tissue models and microfluidic applications. The use of bioprinters has shown successful replicates of functional engineered tissue models integrated within a desired microfluidic system, which facilitates the observation of metabolism or secretion of models and sophisticated control of a dynamic environment. This may provide a wider order of tissue engineering fabrication in mimicking physiological conditions for enhancing further applications such as drug development and pathological studies.
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Affiliation(s)
- Amir K. Miri
- Department of Mechanical Engineering Rowan University, 401 North Campus Drive, Glassboro, NJ 08028, USA
| | - Ebrahim Mostafavi
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115
| | - Danial Khorsandi
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Biotechnology-Biomedicine, University of Barcelona, Barcelona 08028, Spain
| | - Shu-Kai Hu
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Matthew Malpica
- Department of Mechanical Engineering Rowan University, 401 North Campus Drive, Glassboro, NJ 08028, USA
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Biotechnology-Biomedicine, University of Barcelona, Barcelona 08028, Spain
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA 90095, USA
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18
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Miri AK, Mirzaee I, Hassan S, Mesbah Oskui S, Nieto D, Khademhosseini A, Zhang YS. Effective bioprinting resolution in tissue model fabrication. Lab Chip 2019; 19:2019-2037. [PMID: 31080979 PMCID: PMC6554720 DOI: 10.1039/c8lc01037d] [Citation(s) in RCA: 102] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Recent advancements in bioprinting techniques have enabled convenient fabrication of micro-tissues in organ-on-a-chip platforms. In a sense, the success of bioprinted micro-tissues depends on how close their architectures are to the anatomical features of their native counterparts. The bioprinting resolution largely relates to the technical specifications of the bioprinter platforms and the physicochemical properties of the bioinks. In this article, we compare inkjet, extrusion, and light-assisted bioprinting technologies for fabrication of micro-tissues towards construction of biomimetic organ-on-a-chip platforms. Our theoretical analyses reveal that for a given printhead diameter, surface contact angle dominates inkjet bioprinting resolution, while nozzle moving speed and the nonlinearity of viscosity for bioinks regulate extrusion bioprinting resolution. The resolution of light-assisted bioprinting is strongly affected by the photocrosslinking behavior and light characteristics. Our tutorial guideline for optimizing bioprinting resolution would potentially help model the complex microenvironment of biological tissues in organ-on-a-chip platforms.
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Affiliation(s)
- Amir K Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA
| | - Iman Mirzaee
- Department of Mechanical Engineering, University of Massachusetts, Lowell, MA 01854, USA
| | - Shabir Hassan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Shirin Mesbah Oskui
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Bioengineering Program, John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
| | - Daniel Nieto
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA 90095, USA. and Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA 90095, USA and Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA 90095, USA and California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA 90095, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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19
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Kong M, Lee J, Yazdi IK, Miri AK, Lin YD, Seo J, Zhang YS, Khademhosseini A, Shin SR. Cardiac Fibrotic Remodeling on a Chip with Dynamic Mechanical Stimulation. Adv Healthc Mater 2019; 8:e1801146. [PMID: 30609312 PMCID: PMC6546425 DOI: 10.1002/adhm.201801146] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/07/2018] [Indexed: 12/19/2022]
Abstract
Cardiac tissue is characterized by being dynamic and contractile, imparting the important role of biomechanical cues in the regulation of normal physiological activity or pathological remodeling. However, the dynamic mechanical tension ability also varies due to extracellular matrix remodeling in fibrosis, accompanied with the phenotypic transition from cardiac fibroblasts (CFs) to myofibroblasts. It is hypothesized that the dynamic mechanical tension ability regulates cardiac phenotypic transition within fibrosis in a strain-mediated manner. In this study, a microdevice that is able to simultaneously and accurately mimic the biomechanical properties of the cardiac physiological and pathological microenvironment is developed. The microdevice can apply cyclic compressions with gradient magnitudes (5-20%) and tunable frequency onto gelatin methacryloyl (GelMA) hydrogels laden with CFs, and also enables the integration of cytokines. The strain-response correlations between mechanical compression and CFs spreading, and proliferation and fibrotic phenotype remolding, are investigated. Results reveal that mechanical compression plays a crucial role in the CFs phenotypic transition, depending on the strain of mechanical load and myofibroblast maturity of CFs encapsulated in GelMA hydrogels. The results provide evidence regarding the strain-response correlation of mechanical stimulation in CFs phenotypic remodeling, which can be used to develop new preventive or therapeutic strategies for cardiac fibrosis.
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Affiliation(s)
- Ming Kong
- College of Marine Life Science, Ocean University of China, Yushan Road, Qingdao, Shandong Province 266003, China
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Junmin Lee
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA90095, USA
- California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA90095, USA
| | - Iman K. Yazdi
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Amir K. Miri
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Yi-Dong Lin
- Divisions of Genetics and Cardiovascular Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA02115, USA
| | - Jungmok Seo
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Center for Biomaterials, Biomedical Research Institute, Korea Institute of Science and Technology, 14 Hwarang-ro, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Yu Shrike Zhang
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA90095, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA90095, USA
- California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA90095, USA
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Su Ryon Shin
- Department of Medicine, Division of Engineering in Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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20
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Farzin A, Miri AK, Sharifi F, Faramarzi N, Jaberi A, Mostafavi A, Solorzano R, Zhang YS, Annabi N, Khademhosseini A, Tamayol A. Dissolvable Stents: 3D-Printed Sugar-Based Stents Facilitating Vascular Anastomosis (Adv. Healthcare Mater. 24/2018). Adv Healthc Mater 2018. [DOI: 10.1002/adhm.201870088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ali Farzin
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Amir K. Miri
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Fatemeh Sharifi
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
- School of Mechanical Engineering; Sharif University of Technology; Tehran 14588-89694 Iran
| | - Negar Faramarzi
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Arian Jaberi
- School of Mechanical Engineering; Shiraz University; Shiraz 71936-16548 Iran
| | - Azadeh Mostafavi
- Department of Mechanical and Materials Engineering; University of Nebraska; Lincoln NE 68588 USA
| | | | - Yu Shrike Zhang
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Nasim Annabi
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Ali Khademhosseini
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
- Center of Nanotechnology; Department of Physics; King Abdulaziz University; Jeddah 21569 Saudi Arabia
- Center for Minimally Invasive Therapeutics (CMIT); Department of Bioengineering; Department of Chemical and Biomolecular Engineering; Department of Radiology; California NanoSystems Institute (CNSI); University of California; Los Angeles CA 90095 USA
| | - Ali Tamayol
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
- Department of Mechanical and Materials Engineering; University of Nebraska; Lincoln NE 68588 USA
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21
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Ying GL, Maharjan S, Yin YX, Chai RR, Cao X, Yang JZ, Miri AK, Hassan S, Zhang YS. Aqueous Two-Phase Emulsion Bioink-Enabled 3D Bioprinting of Porous Hydrogels. Adv Mater 2018; 30:e1805460. [PMID: 30345555 PMCID: PMC6402588 DOI: 10.1002/adma.201805460] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Indexed: 05/03/2023]
Abstract
3D bioprinting technology provides programmable and customizable platforms to engineer cell-laden constructs mimicking human tissues for a wide range of biomedical applications. However, the encapsulated cells are often restricted in spreading and proliferation by dense biomaterial networks from gelation of bioinks. Herein, a cell-benign approach is reported to directly bioprint porous-structured hydrogel constructs by using an aqueous two-phase emulsion bioink. The bioink, which contains two immiscible aqueous phases of cell/gelatin methacryloyl (GelMA) mixture and poly(ethylene oxide) (PEO), is photocrosslinked to fabricate predesigned cell-laden hydrogel constructs by extrusion bioprinting or digital micromirror device-based stereolithographic bioprinting. The porous structure of the 3D-bioprinted hydrogel construct is formed by subsequently removing the PEO phase from the photocrosslinked GelMA hydrogel. Three different cell types (human hepatocellular carcinoma cells, human umbilical vein endothelial cells, and NIH/3T3 mouse embryonic fibroblasts) within the 3D-bioprinted porous hydrogel patterns show enhanced cell viability, spreading, and proliferation compared to the standard (i.e., nonporous) hydrogel constructs. The 3D bioprinting strategy is believed to provide a robust and versatile platform to engineer porous-structured tissue constructs and their models for a variety of applications in tissue engineering, regenerative medicine, drug development, and personalized therapeutics.
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Affiliation(s)
- Guo-Liang Ying
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Sushila Maharjan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yi-Xia Yin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Rong-Rong Chai
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Xia Cao
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Jing-Zhou Yang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Amir K. Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Shabir Hassan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Cambridge, MA 02139, USA
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22
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Farzin A, Miri AK, Sharifi F, Faramarzi N, Jaberi A, Mostafavi A, Solorzano R, Zhang YS, Annabi N, Khademhosseini A, Tamayol A. 3D-Printed Sugar-Based Stents Facilitating Vascular Anastomosis. Adv Healthc Mater 2018; 7:e1800702. [PMID: 30375196 DOI: 10.1002/adhm.201800702] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 09/10/2018] [Indexed: 12/18/2022]
Abstract
Microvascular anastomosis is a common part of many reconstructive and transplant surgical procedures. While venous anastomosis can be achieved using microvascular anastomotic coupling devices, surgical suturing is the main method for arterial anastomosis. Suture-based microanastomosis is time-consuming and challenging. Here, dissolvable sugar-based stents are fabricated as an assistive tool for facilitating surgical anastomosis. The nonbrittle sugar-based stent holds the vessels together during the procedure and are dissolved upon the restoration of the blood flow. The incorporation of sodium citrate minimizes the chance of thrombosis. The dissolution rate and the mechanical properties of the sugar-based stent can be tailored between 4 and 8 min. To enable the fabrication of stents with desirable geometries and dimensions, 3D printing is utilized to fabricate the stents. The effectiveness of the printed sugar-based stent is assessed ex vivo. The fabrication procedure is fast and can be performed in the operating room.
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Affiliation(s)
- Ali Farzin
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Amir K. Miri
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Fatemeh Sharifi
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
- School of Mechanical Engineering; Sharif University of Technology; Tehran 14588-89694 Iran
| | - Negar Faramarzi
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Arian Jaberi
- School of Mechanical Engineering; Shiraz University; Shiraz 71936-16548 Iran
| | - Azadeh Mostafavi
- Department of Mechanical and Materials Engineering; University of Nebraska; Lincoln NE 68588 USA
| | | | - Yu Shrike Zhang
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Nasim Annabi
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
| | - Ali Khademhosseini
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
- Center of Nanotechnology; Department of Physics; King Abdulaziz University; Jeddah 21569 Saudi Arabia
- Center for Minimally Invasive Therapeutics (CMIT); Department of Bioengineering; Department of Chemical and Biomolecular Engineering; Department of Radiology; California NanoSystems Institute (CNSI); University of California; Los Angeles CA 90095 USA
| | - Ali Tamayol
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Boston MA 02139 USA
- Department of Mechanical and Materials Engineering; University of Nebraska; Lincoln NE 68588 USA
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23
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Miri AK, Hosseinabadi HG, Cecen B, Hassan S, Zhang YS. Permeability mapping of gelatin methacryloyl hydrogels. Acta Biomater 2018; 77:38-47. [PMID: 30126593 PMCID: PMC6148757 DOI: 10.1016/j.actbio.2018.07.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 06/28/2018] [Accepted: 07/02/2018] [Indexed: 12/11/2022]
Abstract
We report the development of an efficient, customized spherical indentation-based testing method to systematically estimate the hydraulic permeability of gelatin methacryloyl (GelMA) hydrogels fabricated in a wide range of mass concentrations and photocrosslinking conditions. Numerical simulations and Biot's theory of poroelasticity were implemented to calibrate our experimental data. We correlated elastic moduli and permeability coefficients with different GelMA concentrations and crosslinking densities. Our model could also predict drug release rates from the GelMA hydrogels and diffusion of biomolecules into the three-dimensional GelMA hydrogels. The results potentially provide a design map for choosing desired GelMA-based hydrogels for use in drug delivery, tissue engineering, and regenerative medicine, which may be further expanded to predicting the permeability behaviors of various other hydrogel types. STATEMENT OF SIGNIFICANCE GelMA hydrogels have attracted increasing attention in recent years as matrices for cell cultures and biomolecule delivery. This inexpensive polymer is derived from gelatin functionalized with methacryloyl groups that can be crosslinked by photochemical reactions. Here we report the development of an efficient, customized testing method to systematically estimate the hydraulic permeability of GelMA hydrogels. Hydraulic permeability indicates the resistance of GelMA hydrogels to the movement of saturated fluid. We used the model to measure the elastic moduli and permeability coefficients, providing a permeability map for various GelMA hydrogel formulations.
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Affiliation(s)
- Amir K Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Hossein Goodarzi Hosseinabadi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Polymeric Materials Research Group, Department of Materials Science and Engineering, Sharif University of Technology, P.O.B. 11155-9466, Tehran, Iran
| | - Berivan Cecen
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Shabir Hassan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA.
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24
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Yesil-Celiktas O, Hassan S, Miri AK, Maharjan S, Al-kharboosh R, Quiñones-Hinojosa A, Zhang YS. Mimicking Human Pathophysiology in Organ-on-Chip Devices. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201800109] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ozlem Yesil-Celiktas
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Cambridge MA 02139 USA
- Department of Bioengineering; Faculty of Engineering; Ege University; Bornova-Izmir 35100 Turkey
| | - Shabir Hassan
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Cambridge MA 02139 USA
| | - Amir K. Miri
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Cambridge MA 02139 USA
- Department of Mechanical Engineering Rowan University; 401 North Campus Drive Glassboro NJ 08028 USA
| | - Sushila Maharjan
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Cambridge MA 02139 USA
- Research Institute for Bioscience and Biotechnology; Nakkhu-4 Lalitpur 44600 Nepal
| | - Rawan Al-kharboosh
- Mayo Clinic College of Medicine; Mayo Clinic Graduate School; Neuroscience, NBD Track Rochester MN 55905 USA
- Department of Neurosurgery, Oncology, Neuroscience; Mayo Clinic; Jacksonville FL 32224 USA
| | | | - Yu Shrike Zhang
- Division of Engineering in Medicine; Department of Medicine; Brigham and Women's Hospital; Harvard Medical School; Cambridge MA 02139 USA
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25
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Miri AK, Khalilpour A, Cecen B, Maharjan S, Shin SR, Khademhosseini A. Multiscale bioprinting of vascularized models. Biomaterials 2018; 198:204-216. [PMID: 30244825 DOI: 10.1016/j.biomaterials.2018.08.006] [Citation(s) in RCA: 125] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/24/2018] [Accepted: 08/02/2018] [Indexed: 12/18/2022]
Abstract
A basic prerequisite for the survival and function of three-dimensional (3D) engineered tissue constructs is the establishment of blood vessels. 3D bioprinting of vascular networks with hierarchical structures that resemble in vivo structures has allowed blood circulation within thick tissue constructs to accelerate vascularization and enhance tissue regeneration. Successful rapid vascularization of tissue constructs requires synergy between fabrication of perfusable channels and functional bioinks that induce angiogenesis and capillary formation within constructs. Combinations of 3D bioprinting techniques and four-dimensional (4D) printing concepts through patterning proangiogenic factors may offer novel solutions for implantation of thick constructs. In this review, we cover current bioprinting techniques for vascularized tissue constructs with vasculatures ranging from capillaries to large blood vessels and discuss how to implement these approaches for patterning proangiogenic factors to maintain long-term, stimuli-controlled formation of new capillaries.
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Affiliation(s)
- Amir K Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA; Department of Mechanical Engineering, Rowan University, Glassboro, NJ 08028, USA.
| | - Akbar Khalilpour
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Berivan Cecen
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Sushila Maharjan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA
| | - Ali Khademhosseini
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA; Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, USA; Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, USA; Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, USA; California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA, USA; Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, Republic of Korea; Center for Nanotechnology, King Abdulaziz University, Jeddah 21569, Saudi Arabia.
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26
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Miri AK, Nieto D, Iglesias L, Goodarzi Hosseinabadi H, Maharjan S, Ruiz-Esparza GU, Khoshakhlagh P, Manbachi A, Dokmeci MR, Chen S, Shin SR, Zhang YS, Khademhosseini A. Microfluidics-Enabled Multimaterial Maskless Stereolithographic Bioprinting. Adv Mater 2018; 30:e1800242. [PMID: 29737048 PMCID: PMC6133710 DOI: 10.1002/adma.201800242] [Citation(s) in RCA: 202] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 02/19/2018] [Indexed: 05/03/2023]
Abstract
A stereolithography-based bioprinting platform for multimaterial fabrication of heterogeneous hydrogel constructs is presented. Dynamic patterning by a digital micromirror device, synchronized by a moving stage and a microfluidic device containing four on/off pneumatic valves, is used to create 3D constructs. The novel microfluidic device is capable of fast switching between different (cell-loaded) hydrogel bioinks, to achieve layer-by-layer multimaterial bioprinting. Compared to conventional stereolithography-based bioprinters, the system provides the unique advantage of multimaterial fabrication capability at high spatial resolution. To demonstrate the multimaterial capacity of this system, a variety of hydrogel constructs are generated, including those based on poly(ethylene glycol) diacrylate (PEGDA) and gelatin methacryloyl (GelMA). The biocompatibility of this system is validated by introducing cell-laden GelMA into the microfluidic device and fabricating cellularized constructs. A pattern of a PEGDA frame and three different concentrations of GelMA, loaded with vascular endothelial growth factor, are further assessed for its neovascularization potential in a rat model. The proposed system provides a robust platform for bioprinting of high-fidelity multimaterial microstructures on demand for applications in tissue engineering, regenerative medicine, and biosensing, which are otherwise not readily achievable at high speed with conventional stereolithographic biofabrication platforms.
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Affiliation(s)
- Amir K Miri
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Daniel Nieto
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Microoptics and GRIN Optics Group, Applied Physics Department, Faculty of Physics, University of Santiago de Compostela, Santiago de Compostela, 15782, Spain
| | - Luis Iglesias
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hossein Goodarzi Hosseinabadi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Polymeric Materials Research Group, Department of Materials Science and Engineering, Sharif University of Technology, Tehran, 1458889694, Iran
| | - Sushila Maharjan
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Guillermo U Ruiz-Esparza
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Parastoo Khoshakhlagh
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Amir Manbachi
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biomedical Engineering, Whiting School of Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Mehmet Remzi Dokmeci
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Shaochen Chen
- Department of NanoEngineering, University of California, San Diego, La Jolla, CA, 92093, USA
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, 92093, USA
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Ali Khademhosseini
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Center for Minimally Invasive Therapeutics (C-MIT), University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Radiology, David Geffen School of Medicine, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California-Los Angeles, Los Angeles, CA, 90095, USA
- California NanoSystems Institute (CNSI), University of California-Los Angeles, Los Angeles, CA, 90095, USA
- Department of Bioindustrial Technologies, Konkuk University, Seoul, 143-701, Republic of Korea
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27
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Liu W, Zhong Z, Hu N, Zhou Y, Maggio L, Miri AK, Fragasso A, Jin X, Khademhosseini A, Zhang YS. Coaxial extrusion bioprinting of 3D microfibrous constructs with cell-favorable gelatin methacryloyl microenvironments. Biofabrication 2018; 10:024102. [PMID: 29176035 PMCID: PMC5837947 DOI: 10.1088/1758-5090/aa9d44] [Citation(s) in RCA: 153] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Bioinks with shear-thinning/rapid solidification properties and strong mechanics are usually needed for the bioprinting of three-dimensional (3D) cell-laden constructs. As such, it remains challenging to generate soft constructs from bioinks at low concentrations that are favorable for cellular activities. Herein, we report a strategy to fabricate cell-laden constructs with tunable 3D microenvironments achieved by bioprinting of gelatin methacryloyl (GelMA)/alginate core/sheath microfibers, where the alginate sheath serves as a template to support and confine the GelMA pre-hydrogel in the core during the extrusion process, allowing for subsequent UV crosslinking. This novel strategy minimizes the bioprinting requirements for the core bioink, and facilitates the fabrication of cell-laden GelMA constructs at low concentrations. We first showed the capability of generating various alginate hollow microfibrous constructs using a coaxial nozzle setup, and verified the diffusibility and perfusability of the bioprinted hollow structures that are important for the tissue engineering applications. More importantly, the hollow alginate microfibers were then used as templates for generating cell-laden GelMA constructs with soft microenvironments, by using GelMA pre-hydrogel as the bioink for the core phase during bioprinting. As such, GelMA constructs at extremely low concentrations (<2.0%) could be extruded to effectively support cellular activities including proliferation and spreading for various cell types. We believe that our strategy is likely to provide broad opportunities in bioprinting of 3D constructs with cell-favorable microenvironments for applications in tissue engineering and pharmaceutical screening.
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Affiliation(s)
- Wanjun Liu
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, United States of America. Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, United States of America. Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, People's Republic of China
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28
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Khoshakhlagh P, Rabiee SM, Kiaee G, Heidari P, Miri AK, Moradi R, Moztarzadeh F, Ravarian R. Development and characterization of a bioglass/chitosan composite as an injectable bone substitute. Carbohydr Polym 2017; 157:1261-1271. [DOI: 10.1016/j.carbpol.2016.11.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Revised: 10/27/2016] [Accepted: 11/02/2016] [Indexed: 11/27/2022]
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29
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Liu W, Zhang YS, Heinrich MA, De Ferrari F, Jang HL, Bakht SM, Alvarez MM, Yang J, Li YC, Trujillo-de Santiago G, Miri AK, Zhu K, Khoshakhlagh P, Prakash G, Cheng H, Guan X, Zhong Z, Ju J, Zhu GH, Jin X, Shin SR, Dokmeci MR, Khademhosseini A. Rapid Continuous Multimaterial Extrusion Bioprinting. Adv Mater 2017; 29:10.1002/adma.201604630. [PMID: 27859710 PMCID: PMC5235978 DOI: 10.1002/adma.201604630] [Citation(s) in RCA: 195] [Impact Index Per Article: 27.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 09/23/2016] [Indexed: 05/17/2023]
Abstract
The development of a multimaterial extrusion bioprinting platform is reported. This platform is capable of depositing multiple coded bioinks in a continuous manner with fast and smooth switching among different reservoirs for rapid fabrication of complex constructs, through digitally controlled extrusion of bioinks from a single printhead consisting of bundled capillaries synergized with programmed movement of the motorized stage.
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Affiliation(s)
- Wanjun Liu
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Key Laboratory of Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Marcel A Heinrich
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- MIRA Institute of Biomedical Technology and Technical Medicine, Department of Developmental BioEngineering, University of Twente, Enschede, 7500AE, The Netherlands
| | - Fabio De Ferrari
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Electronics and Telecommunications, Politecnico di Torino, Torino, 10129, Italy
| | - Hae Lin Jang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Syeda Mahwish Bakht
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- COMSATS Institute of Information and Technology, Islamabad, 45550, Pakistan
| | - Mario Moisés Alvarez
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Microsystems Technologies Laboratories, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey at Monterrey, Monterrey, Nuevo León, CP, 64849, Mexico
| | - Jingzhou Yang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- School of Mechanical and Chemical Engineering, University of Western Australia, Perth, WA, 6009, Australia
| | - Yi-Chen Li
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Grissel Trujillo-de Santiago
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Microsystems Technologies Laboratories, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Centro de Biotecnología-FEMSA, Tecnológico de Monterrey at Monterrey, Monterrey, Nuevo León, CP, 64849, Mexico
| | - Amir K Miri
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Kai Zhu
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, P. R. China
- Shanghai Institute of Cardiovascular Disease, Shanghai, 200032, P. R. China
| | - Parastoo Khoshakhlagh
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Gyan Prakash
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hao Cheng
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Xiaofei Guan
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Zhe Zhong
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Jie Ju
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Geyunjian Harry Zhu
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Polymer Engineering, University of Akron, Akron, OH, 44325-0301, USA
| | - Xiangyu Jin
- Key Laboratory of Textile Science and Technology, College of Textiles, Donghua University, Shanghai, 201620, China
| | - Su Ryon Shin
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Mehmet Remzi Dokmeci
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, Republic of Korea
- Department of Physics, King Abdulaziz University, Jeddah, 21569, Saudi Arabia
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Zhang YS, Davoudi F, Walch P, Manbachi A, Luo X, Dell'Erba V, Miri AK, Albadawi H, Arneri A, Li X, Wang X, Dokmeci MR, Khademhosseini A, Oklu R. Bioprinted thrombosis-on-a-chip. Lab Chip 2016; 16:4097-4105. [PMID: 27722710 PMCID: PMC5072176 DOI: 10.1039/c6lc00380j] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Pathologic thrombosis kills more people than cancer and trauma combined; it is associated with significant disability and morbidity, and represents a major healthcare burden. Despite advancements in medical therapies and imaging, there is often incomplete resolution of the thrombus. The residual thrombus can undergo fibrotic changes over time through infiltration of fibroblasts from the surrounding tissues and eventually transform into a permanent clot often associated with post-thrombotic syndrome. In order to understand the importance of cellular interactions and the impact of potential therapeutics to treat thrombosis, an in vitro platform using human cells and blood components would be beneficial. Towards achieving this aim, there have been studies utilizing the capabilities of microdevices to study the hemodynamics associated with thrombosis. In this work, we further exploited the utilization of 3D bioprinting technology, for the construction of a highly biomimetic thrombosis-on-a-chip model. The model consisted of microchannels coated with a layer of confluent human endothelium embedded in a gelatin methacryloyl (GelMA) hydrogel, where human whole blood was infused and induced to form thrombi. Continuous perfusion with tissue plasmin activator led to dissolution of non-fibrotic clots, revealing clinical relevance of the model. Further encapsulating fibroblasts in the GelMA matrix demonstrated the potential migration of these cells into the clot and subsequent deposition of collagen type I over time, facilitating fibrosis remodeling that resembled the in vivo scenario. Our study suggests that in vitro 3D bioprinted blood coagulation models can be used to study the pathology of fibrosis, and particularly, in thrombosis. This versatile platform may be conveniently extended to other vascularized fibrotic disease models.
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Affiliation(s)
- Yu Shrike Zhang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Farideh Davoudi
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Philipp Walch
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Institute of Pharmacy and Molecular Biotechnology, Heidelberg University, Im Neuenheimer Feld 364, D-69120, Germany
| | - Amir Manbachi
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Xuan Luo
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Sorbonne Universités, Université de Technologie de Compiègne, UMR CNRS 7338, BMBI, Compiègne, France
| | - Valeria Dell'Erba
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Department of Biomedical Engineering, Politecnico di Torino, 10129 Torino, Italy
| | - Amir K Miri
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Hassan Albadawi
- Department of Surgery, Division of Vascular and Endovascular Surgery, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Andrea Arneri
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Xiaoyun Li
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Xiaoying Wang
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, 510640, PR China
| | - Mehmet Remzi Dokmeci
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115, USA and Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 143-701, Republic of Korea and Department of Physics, King Abdulaziz University, Jeddah 21569, Saudi Arabia
| | - Rahmi Oklu
- Biomaterials Innovation Research Center, Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA. and Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA and Division of Vascular & Interventional Radiology, Mayo Clinic, Scottsdale, AZ 85259, USA.
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Kamranpour NO, Miri AK, James-Bhasin M, Nazhat SN. A gel aspiration-ejection system for the controlled production and delivery of injectable dense collagen scaffolds. Biofabrication 2016; 8:015018. [DOI: 10.1088/1758-5090/8/1/015018] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Miri AK, Muja N, Kamranpour NO, Lepry WC, Boccaccini AR, Clarke SA, Nazhat SN. Ectopic bone formation in rapidly fabricated acellular injectable dense collagen-Bioglass hybrid scaffolds via gel aspiration-ejection. Biomaterials 2016; 85:128-41. [PMID: 26871889 DOI: 10.1016/j.biomaterials.2016.01.047] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 01/15/2016] [Accepted: 01/21/2016] [Indexed: 12/29/2022]
Abstract
Gel aspiration-ejection (GAE) has recently been introduced as an effective technique for the rapid production of injectable dense collagen (IDC) gel scaffolds with tunable collagen fibrillar densities (CFDs) and microstructures. Herein, a GAE system was applied for the advanced production and delivery of IDC and IDC-Bioglass(®) (IDC-BG) hybrid gel scaffolds for potential bone tissue engineering applications. The efficacy of GAE in generating mineralizable IDC-BG gels (from an initial 75-25 collagen-BG ratio) produced through needle gauge numbers 8G (3.4 mm diameter and 6 wt% CFD) and 14G (1.6 mm diameter and 14 wt% CFD) was investigated. Second harmonic generation (SHG) imaging of as-made gels revealed an increase in collagen fibril alignment with needle gauge number. In vitro mineralization of IDC-BG gels was confirmed where carbonated hydroxyapatite was detected as early as day 1 in simulated body fluid, which progressively increased up to day 14. In vivo mineralization of, and host response to, acellular IDC and IDC-BG gel scaffolds were further investigated following subcutaneous injection in adult rats. Mineralization, neovascularization and cell infiltration into the scaffolds was enhanced by the addition of BG and at day 21 post injection, there was evidence of remodelling of granulation tissue into woven bone-like tissue in IDC-BG. SHG imaging of explanted scaffolds indicated collagen fibril remodelling through cell infiltration and mineralization over time. In sum, the results suggest that IDC-BG hybrid gels have osteoinductive properties and potentially offer a novel therapeutic approach for procedures requiring the injectable delivery of a malleable and dynamic bone graft that mineralizes under physiological conditions.
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Affiliation(s)
- Amir K Miri
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, H3A 0C5, Canada
| | - Naser Muja
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, H3A 0C5, Canada
| | - Neysan O Kamranpour
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, H3A 0C5, Canada
| | - William C Lepry
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, H3A 0C5, Canada
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Cauerstr. 6, D-91058, Erlangen, Germany
| | - Susan A Clarke
- School of Nursing and Midwifery, Queen's University Belfast, Belfast, BT9 7BL, UK
| | - Showan N Nazhat
- Department of Mining and Materials Engineering, McGill University, Montreal, QC, H3A 0C5, Canada.
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Abstract
A customized mechanical tester that slices thin, soft samples was used to measure the fracture toughness of vocal fold tissue. Porcine vocal fold lamina propria was subjected to quasi-static, guillotine-like tests at three equally distanced regions along the anterior-posterior direction. The central one-third where high-velocity collisions between vocal folds occur was found to have the maximum fracture toughness. In contrast, the anterior one-third featured a lower toughness. Fracture toughness can be indicative of the risk of benign and malignant lesions in vocal fold tissue.
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Affiliation(s)
- Amir K Miri
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada.
| | - Lei Xi Chen
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
| | - Rosaire Mongrain
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
| | - Luc Mongeau
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
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Heris HK, Miri AK, Ghattamaneni NR, Li NYK, Thibeault SL, Wiseman PW, Mongeau L. Microstructural and mechanical characterization of scarred vocal folds. J Biomech 2015; 48:708-711. [PMID: 25648495 DOI: 10.1016/j.jbiomech.2015.01.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 01/10/2015] [Accepted: 01/13/2015] [Indexed: 10/24/2022]
Abstract
The goal of this study was to characterize the vocal folds microstructure and elasticity using nonlinear laser scanning microscopy and atomic force microscopy-based indentation, respectively. As a pilot study, the vocal folds of fourteen rats were unilaterally injured by full removal of lamina propria; the uninjured folds of the same animals served as controls. The area fraction of collagen fibrils was found to be greater in scarred tissues two months after injury than the uninjured controls. A novel mathematical model was also proposed to relate collagen concentration and tissue bulk modulus. This work presents a first step towards systematic investigation of microstructural and mechanical characteristics in scarred vocal fold tissue.
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Affiliation(s)
- Hossein K Heris
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 rue Sherbrooke Ouest, Montreal, QC, Canada H3A 0C3
| | - Amir K Miri
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 rue Sherbrooke Ouest, Montreal, QC, Canada H3A 0C3.
| | - Nageswara R Ghattamaneni
- Physics and Chemistry Departments, McGill University, 3600 rue University, Montreal, QC, Canada H3A 2T8
| | - Nicole Y K Li
- School of Communication Sciences and Disorders, McGill University, 2001 McGill College, Montreal, QC, Canada H3A 1G1
| | - Susan L Thibeault
- Division of Otolaryngology-Head and Neck Surgery, Department of Surgery, University of Wisconsin, Madison, WI 53792, United States
| | - Paul W Wiseman
- Physics and Chemistry Departments, McGill University, 3600 rue University, Montreal, QC, Canada H3A 2T8
| | - Luc Mongeau
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 rue Sherbrooke Ouest, Montreal, QC, Canada H3A 0C3
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Latifi N, Miri AK, Mongeau L. Determination of the elastic properties of rabbit vocal fold tissue using uniaxial tensile testing and a tailored finite element model. J Mech Behav Biomed Mater 2014; 39:366-74. [PMID: 25173237 DOI: 10.1016/j.jmbbm.2014.07.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 07/05/2014] [Accepted: 07/29/2014] [Indexed: 11/28/2022]
Abstract
The aim of the present study was to quantify the effects of the specimen shape on the accuracy of mechanical properties determined from a shape-specific model generation strategy. Digital images of five rabbit vocal folds (VFs) in their initial undeformed conditions were used to build corresponding specific solid models. The displacement field of the VFs under uniaxial tensile test was then measured over the visible portion of the surface using digital image correlation. A three-dimensional finite element model was built, using ABAQUS, for each solid model, while imposing measured boundary conditions. An inverse-problem method was used, assuming a homogeneous isotropic linear elastic constitutive model. Unknown elastic properties were identified iteratively through an error minimization technique between simulated and measured force-time data. The longitudinal elastic moduli of the five rabbit VFs were calculated and compared to values from a simple analytical method and those obtained by approximating the cross-section as elliptical. The use of shape-specific models significantly reduced the standard deviation of the Young׳s moduli of the tested specimens. However, a non-parametric statistical analysis test, i.e., the Friedman test, yielded no statistically significant differences between the shape-specific method and the elliptic cylindrical finite element model. Considering the required procedures to reconstruct the shape-specific finite element model for each tissue specimen, it might be expedient to use the simpler method when large numbers of tissue specimens are to be compared regarding their Young׳s moduli.
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Affiliation(s)
- Neda Latifi
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Canada QC H3A 0C3.
| | - Amir K Miri
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Canada QC H3A 0C3.
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, Canada QC H3A 0C3.
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Miri AK, Heris HK, Mongeau L, Javid F. Nanoscale viscoelasticity of extracellular matrix proteins in soft tissues: A multiscale approach. J Mech Behav Biomed Mater 2013; 30:196-204. [PMID: 24317493 DOI: 10.1016/j.jmbbm.2013.10.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 10/17/2013] [Accepted: 10/21/2013] [Indexed: 02/05/2023]
Abstract
It is hypothesized that the bulk viscoelasticity of soft tissues is determined by two length-scale-dependent mechanisms: the time-dependent response of the extracellular matrix (ECM) proteins at the nanometer scale and the biophysical interactions between the ECM solid structure and interstitial fluid at the micrometer scale. The latter is governed by poroelasticity theory assuming free motion of the interstitial fluid within the porous ECM structure. In a recent study (Heris, H.K., Miri, A.K., Tripathy, U., Barthelat, F., Mongeau, L., 2013. J. Mech. Behav. Biomed. Mater.), atomic force microscopy was used to measure the response of porcine vocal folds to a creep loading and a 50-nm sinusoidal oscillation. A constitutive model was calibrated and verified using a finite element model to accurately predict the nanoscale viscoelastic moduli of ECM. A generally good correlation was obtained between the predicted variation of the viscoelastic moduli with depth and that of hyaluronic acids in vocal fold tissue. We conclude that hyaluronic acids may regulate vocal fold viscoelasticity. The proposed methodology offers a characterization tool for biomaterials used in vocal fold augmentations.
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Affiliation(s)
- Amir K Miri
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC, Canada H3A 0C3.
| | - Hossein K Heris
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC, Canada H3A 0C3
| | - Luc Mongeau
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC, Canada H3A 0C3
| | - Farhad Javid
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC, Canada H3A 0C3
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Bakhshaee H, Young J, Yang JCW, Mongeau L, Miri AK. Determination of strain field on the superior surface of excised larynx vocal folds using DIC. J Voice 2013; 27:659-67. [PMID: 24070590 DOI: 10.1016/j.jvoice.2013.05.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Accepted: 05/21/2013] [Indexed: 10/26/2022]
Abstract
OBJECTIVE/HYPOTHESIS The objective of the present study was to quantify the mechanical strain and stress in excised porcine larynges during self-oscillation using digital image correlation (DIC) method. The use of DIC in the excised larynx setup may yield accurate measurements of the vocal fold displacement field. STUDY DESIGN Ex vivo animal larynx. METHODS Measurements were performed using excised porcine larynges on a humidified flow bench, equipped with two high-speed cameras and a commercially available DIC software. Surface deformations were calculated from digital images recorded at 3000 frames per second during continuous self-oscillation for four excised porcine larynges. Larynx preparation consisted of removing the supraglottal wall and the false folds. DIC yielded the deformation field on the superior visible surface of the vocal folds. Measurement data for adducted and freely suspended vocal folds were also used to estimate the distribution of the initial prephonatory strain field. An isotropic constitutive law, the polymer eight-chain model, was used to estimate the surface distributions of planar stresses from the strain data. RESULTS The Lagrangian normal strain values were between ∼16% and ∼29% along the anterior-posterior direction. The motion of material points on the vocal fold surface described an elliptical trajectory during oscillation. A phase difference was observed between the anterior-posterior and the medial-lateral component of the displacement. The strain data and eight-chain model yielded a maximum stress of ∼4 kPa along the medial-lateral direction on the superior surface. CONCLUSION DIC allowed the strain field over the superior surface of an excised porcine larynx to be quantified during self-oscillation. The approach allowed the determination of the trajectory of specific points on the vocal fold surface. The results for the excised larynx were found to be significantly different than previous results obtained using synthetic replicas. The present study provides suggestions for future studies in human subjects.
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Affiliation(s)
- Hani Bakhshaee
- Department of Mechanical Engineering, McGill University, Montreal, Quebec, Canada
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Miri AK, Heris HK, Tripathy U, Wiseman PW, Mongeau L. Microstructural characterization of vocal folds toward a strain-energy model of collagen remodeling. Acta Biomater 2013; 9:7957-67. [PMID: 23643604 DOI: 10.1016/j.actbio.2013.04.044] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 04/20/2013] [Accepted: 04/25/2013] [Indexed: 11/18/2022]
Abstract
Collagen fibrils are believed to control the immediate deformation of soft tissues under mechanical load. Most extracellular matrix proteins remain intact during frozen sectioning, which allows them to be scanned using atomic force microscopy (AFM). Collagen fibrils are distinguishable because of their periodic roughness wavelength. In the present study, the shape and organization of collagen fibrils in dissected porcine vocal folds were quantified using nonlinear laser scanning microscopy data at the micrometer scale and AFM data at the nanometer scale. Rope-shaped collagen fibrils were observed. The geometric characteristics for the fibrils were fed into a hyperelastic model to predict the biomechanical response of the tissue. The model simulates the micrometer-scale unlocking behavior of collagen bundles when extended from their unloaded configuration. Force spectroscopy using AFM was used to estimate the stiffness of collagen fibrils (1±0.5MPa). The presence of rope-shaped fibrils is postulated to change the slope of the force-deflection response near the onset of nonlinearity. The proposed model could ultimately be used to evaluate changes in elasticity of soft tissues that result from the collagen remodeling.
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Affiliation(s)
- Amir K Miri
- Department of Mechanical Engineering, McGill University, Montreal, QC, Canada H3A 0C3
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Heris HK, Miri AK, Tripathy U, Barthelat F, Mongeau L. Indentation of poroviscoelastic vocal fold tissue using an atomic force microscope. J Mech Behav Biomed Mater 2013; 28:383-92. [PMID: 23829979 DOI: 10.1016/j.jmbbm.2013.05.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 05/18/2013] [Accepted: 05/27/2013] [Indexed: 11/19/2022]
Abstract
The elastic properties of the vocal folds (VFs) vary as a function of depth relative to the epithelial surface. The poroelastic anisotropic properties of porcine VFs, at various depths, were measured using atomic force microscopy (AFM)-based indentation. The minimum tip diameter to effectively capture the local properties was found to be 25µm, based on nonlinear laser scanning microscopy data and image analysis. The effects of AFM tip dimensions and AFM cantilever stiffness were systematically investigated. The indentation tests were performed along the sagittal and coronal planes for an evaluation of the VF anisotropy. Hertzian contact theory was used along with the governing equations of linear poroelasticity to calculate the diffusivity coefficient of the tissue from AFM indentation creep testing. The permeability coefficient of the porcine VF was found to be 1.80±0.32×10(-15)m(4)/Ns.
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Affiliation(s)
- Hossein K Heris
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 Rue Sherbrooke Ouest, Montreal, Que., Canada H3A 0C3
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Rivard M, Couture CA, Miri AK, Laliberté M, Bertrand-Grenier A, Mongeau L, Légaré F. Imaging the bipolarity of myosin filaments with Interferometric Second Harmonic Generation microscopy. Biomed Opt Express 2013; 4:2078-86. [PMID: 24156065 PMCID: PMC3799667 DOI: 10.1364/boe.4.002078] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 08/21/2013] [Accepted: 08/21/2013] [Indexed: 05/18/2023]
Abstract
We report that combining interferometry with Second Harmonic Generation (SHG) microscopy provides valuable information about the relative orientation of noncentrosymmetric structures composing tissues. This is confirmed through the imaging of rat medial gastrocnemius muscle. The inteferometric Second Harmonic Generation (ISHG) images reveal that each side of the myosin filaments composing the A band of the sarcomere generates π phase shifted SHG signal which implies that the myosin proteins at each end of the filaments are oriented in opposite directions. This highlights the bipolar structural organization of the myosin filaments and shows that muscles can be considered as a periodically poled biological structure.
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Affiliation(s)
- Maxime Rivard
- Institut National de la Recherche Scientifique, Centre Énergie Matériaux Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S2, Canada
| | - Charles-André Couture
- Institut National de la Recherche Scientifique, Centre Énergie Matériaux Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S2, Canada
| | - Amir K. Miri
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St. West, Montreal, Quebec, H3A 0C3, Canada
| | - Mathieu Laliberté
- Institut National de la Recherche Scientifique, Centre Énergie Matériaux Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S2, Canada
| | - Antony Bertrand-Grenier
- Institut National de la Recherche Scientifique, Centre Énergie Matériaux Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S2, Canada
| | - Luc Mongeau
- Department of Mechanical Engineering, McGill University, 817 Sherbrooke St. West, Montreal, Quebec, H3A 0C3, Canada
| | - François Légaré
- Institut National de la Recherche Scientifique, Centre Énergie Matériaux Télécommunications, 1650 Boulevard Lionel-Boulet, Varennes, Quebec, J3X 1S2, Canada
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Miri AK, Mongrain R, Chen LX, Mongeau L. Quantitative assessment of the anisotropy of vocal fold tissue using shear rheometry and traction testing. J Biomech 2012; 45:2943-6. [PMID: 23021593 DOI: 10.1016/j.jbiomech.2012.08.030] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 08/16/2012] [Accepted: 08/21/2012] [Indexed: 11/17/2022]
Abstract
The human vocal folds are layered structures with intrinsically anisotropic elastic properties. Most testing methods assume isotropic behavior. Biaxial testing of vocal folds is strictly difficult because the very soft tissue tends to delaminate under transverse traction loads. In the present study, a linear transversely isotropic model was used to characterize the tissue in-vitro. Shear rheometry was used in conjunction with traction testing to quantify the elasticity of porcine vocal fold tissue. Uniaxial traction testing along with optical measurements were used to obtain the longitudinal modulus. The alternate vocal fold of each animal was subjected to a test-specific sample preparation and concurrently tested using dynamic shear rheometry. The stiffness ratio (i.e., the ratio of the longitudinal modulus and the transverse modulus) varied between ∼5 and ∼7 at low frequencies. The proposed methodology can be applied to other soft tissues.
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Affiliation(s)
- Amir K Miri
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, 817 Sherbrooke Street West, Montreal, QC, Canada H3A 0C3.
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Miri AK, Mongeau L. ROLE OF COLLAGEN HELICAL HIERARCHY IN SOFT TISSUE ELASTICITY. J Biomech 2012. [DOI: 10.1016/s0021-9290(12)70588-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Miri AK, Barthelat F, Mongeau L. Effects of dehydration on the viscoelastic properties of vocal folds in large deformations. J Voice 2012; 26:688-97. [PMID: 22483778 DOI: 10.1016/j.jvoice.2011.09.003] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2011] [Accepted: 09/15/2011] [Indexed: 11/25/2022]
Abstract
Dehydration may alter vocal fold viscoelastic properties, thereby hampering phonation. The effects of water loss induced by an osmotic pressure potential on vocal fold tissue viscoelastic properties were investigated. Porcine vocal folds were dehydrated by immersion in a hypertonic solution, and quasi-static and low-frequency dynamic traction tests were performed for elongations of up to 50%. Digital image correlation was used to determine local strains from surface deformations. The elastic modulus and the loss factor were then determined for normal and dehydrated tissues. An eight-chain hyperelastic model was used to describe the observed nonlinear stress-stretch behavior. Contrary to the expectations, the mass history indicated that the tissue absorbed water during cyclic extension when submerged in a hypertonic solution. During loading history, the elastic modulus was increased for dehydrated tissues as a function of strain. The response of dehydrated tissues was much less affected when the load was released. This observation suggests that hydration should be considered in micromechanical models of the vocal folds. The internal hysteresis, which is often linked to phonation effort, increased significantly with water loss. The effects of dehydration on the viscoelastic properties of vocal fold tissue were quantified in a systematic way. A better understanding of the role of hydration on the mechanical properties of vocal fold tissue may help to establish objective dehydration and phonotrauma criteria.
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Affiliation(s)
- Amir K Miri
- Biomechanics Laboratory, Department of Mechanical Engineering, McGill University, Montreal, QC, Canada
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Miri AK, Tripathy U, Mongeau L, Wiseman PW. Nonlinear laser scanning microscopy of human vocal folds. Laryngoscope 2012; 122:356-63. [PMID: 22252839 PMCID: PMC3397157 DOI: 10.1002/lary.22460] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 10/07/2011] [Accepted: 10/24/2011] [Indexed: 11/09/2022]
Abstract
OBJECTIVES/HYPOTHESIS The purpose of this work was to apply nonlinear laser scanning microscopy (NLSM) for visualizing the morphology of extracellular matrix proteins within human vocal folds. This technique may potentially assist clinicians in making rapid diagnoses of vocal fold tissue disease or damage. Microstructural characterization based on NLSM provides valuable information for better understanding molecular mechanisms and tissue structure. STUDY DESIGN Experimental, ex vivo human vocal fold. METHODS A custom-built multimodal nonlinear laser scanning microscope was used to scan fibrillar proteins in three 4% formaldehyde-fixed cadaveric samples. Collagen and elastin, key extracellular matrix proteins in the vocal fold lamina propria, were imaged by two nonlinear microscopy modalities: second harmonic generation (SHG) and two-photon fluorescence (TPF), respectively. An experimental protocol was introduced to characterize the geometrical properties of the imaged fibrous proteins. RESULTS NLSM revealed the biomorphology of the human vocal fold fibrous proteins. No photobleaching was observed for the incident laser power of ∼60 mW before the excitation objective. Types I and III fibrillar collagen were imaged without label in the tissue by intrinsic SHG. Imaging while rotating the incident laser light-polarization direction confirmed a helical shape for the collagen fibers. The amplitude, periodicity, and overall orientation were then computed for the helically distributed collagen network. The elastin network was simultaneously imaged via TPF and found to have a basket-like structure. In some regions, particularly close to the epithelium, colocalization of both extracellular matrix components were observed. CONCLUSIONS A benchmark study is presented for quantitative real-time, ex vivo, NLSM imaging of the extracellular macromolecules in human vocal fold lamina propria. The results are promising for clinical applications.
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Affiliation(s)
- Amir K Miri
- Biomechanics Laboratory, Mechanical Engineering Department, McGill University, Montreal, Canada.
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Miri AK, Mitri FG. Acoustic radiation force on a spherical contrast agent shell near a vessel porous wall--theory. Ultrasound Med Biol 2011; 37:301-311. [PMID: 21257091 DOI: 10.1016/j.ultrasmedbio.2010.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Revised: 10/28/2010] [Accepted: 11/08/2010] [Indexed: 05/30/2023]
Abstract
Contrast agent microshells (CAMSs) are under intensive investigation for their wide applications in biomedical imaging and drug delivery. In drug delivery applications, CAMSs are guided to the targeted site before fragmentation by high-intensity ultrasound waves leading to the drug release. Prediction of the acoustic radiation force used to nondestructively guide a CAMS to the suspected site is becoming increasingly important and gaining attention particularly because it increases the system efficiency. The goal of this work is to present a theoretical model for the time-averaged (static) acoustic radiation force experienced by a CAMS near a blood vessel wall. An exact solution for the scattering of normal incident plane acoustic waves on an air-filled elastic spherical shell immersed in a nonviscous fluid near a porous and nonrigid boundary is employed to evaluate the radiation force function (which is the radiation force per unit energy density per unit cross-sectional surface). A particular example is chosen to illustrate the behavior of the time-averaged (static) radiation force on an elastic polyethylene spherical shell near a porous wall, with particular emphasis on the relative thickness of the shell and the distance from its center to the wall. This proposed model allows obtaining a priori information on the static radiation force that may be used to advantage in related as drug delivery and contrast agent imaging. This study should assist in the development of improved models for the evaluation of the time-averaged acoustic radiation force on a cluster of CAMSs in viscous and heat-conducting fluids.
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Affiliation(s)
- Amir K Miri
- Mechanical Engineering Department, McGill University, Montreal, Canada
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