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Bhutani U, Dey N, Chowdhury SK, Waghmare N, Mahapatra RD, Selvakumar K, Chandru A, Bhowmick T, Agrawal P. Biopolymeric corneal lenticules by digital light processing based bioprinting: a dynamic substitute for corneal transplant. Biomed Mater 2024; 19:035017. [PMID: 38471165 DOI: 10.1088/1748-605x/ad3312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 03/12/2024] [Indexed: 03/14/2024]
Abstract
Digital light processing (DLP) technology has gained significant attention for its ability to construct intricate structures for various applications in tissue modeling and regeneration. In this study, we aimed to design corneal lenticules using DLP bioprinting technology, utilizing dual network bioinks to mimic the characteristics of the human cornea. The bioink was prepared using methacrylated hyaluronic acid and methacrylated gelatin, where ruthenium salt and sodium persulfate were included for mediating photo-crosslinking while tartrazine was used as a photoabsorber. The bioprinted lenticules were optically transparent (85.45% ± 0.14%), exhibited adhesive strength (58.67 ± 17.5 kPa), and compressive modulus (535.42 ± 29.05 kPa) sufficient for supporting corneal tissue integration and regeneration. Puncture resistance tests and drag force analysis further confirmed the excellent mechanical performance of the lenticules enabling their application as potential corneal implants. Additionally, the lenticules demonstrated outstanding support for re-epithelialization and stromal regeneration when assessed with human corneal stromal cells. We generated implant ready corneal lenticules while optimizing bioink and bioprinting parameters, providing valuable solution for individuals suffering from various corneal defects and waiting for corneal transplants.
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Affiliation(s)
- Utkarsh Bhutani
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Namit Dey
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Suvro Kanti Chowdhury
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Neha Waghmare
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Rita Das Mahapatra
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Kamalnath Selvakumar
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Arun Chandru
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
| | - Tuhin Bhowmick
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
- Pandorum International Inc., San Francisco, CA, United States of America
| | - Parinita Agrawal
- Pandorum Technologies Private Limited, Bangalore Bioinnovation Centre, Helix Biotech Park, Electronic City, Phase 1, Bengaluru 560100, India
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Zennifer A, Thangadurai M, Sundaramurthi D, Sethuraman S. Additive manufacturing of peripheral nerve conduits - Fabrication methods, design considerations and clinical challenges. SLAS Technol 2023; 28:102-126. [PMID: 37028493 DOI: 10.1016/j.slast.2023.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/20/2023] [Accepted: 03/28/2023] [Indexed: 04/08/2023]
Abstract
Tissue-engineered nerve guidance conduits (NGCs) are a viable clinical alternative to autografts and allografts and have been widely used to treat peripheral nerve injuries (PNIs). Although these NGCs are successful to some extent, they cannot aid in native regeneration by improving native-equivalent neural innervation or regrowth. Further, NGCs exhibit longer recovery period and high cost limiting their clinical applications. Additive manufacturing (AM) could be an alternative to the existing drawbacks of the conventional NGCs fabrication methods. The emergence of the AM technique has offered ease for developing personalized three-dimensional (3D) neural constructs with intricate features and higher accuracy on a larger scale, replicating the native feature of nerve tissue. This review introduces the structural organization of peripheral nerves, the classification of PNI, and limitations in clinical and conventional nerve scaffold fabrication strategies. The principles and advantages of AM-based techniques, including the combinatorial approaches utilized for manufacturing 3D nerve conduits, are briefly summarized. This review also outlines the crucial parameters, such as the choice of printable biomaterials, 3D microstructural design/model, conductivity, permeability, degradation, mechanical property, and sterilization required to fabricate large-scale additive-manufactured NGCs successfully. Finally, the challenges and future directions toward fabricating the 3D-printed/bioprinted NGCs for clinical translation are also discussed.
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Affiliation(s)
- Allen Zennifer
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India
| | - Madhumithra Thangadurai
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India
| | - Dhakshinamoorthy Sundaramurthi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, India.
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3
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Zhang J, Frank C, Byers P, Djordjevic S, Docheva D, Clausen-Schaumann H, Sudhop S, Huber HP. Dynamics of single cell femtosecond laser printing. BIOMEDICAL OPTICS EXPRESS 2023; 14:2276-2292. [PMID: 37206114 PMCID: PMC10191647 DOI: 10.1364/boe.480286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 05/21/2023]
Abstract
In the present study, we investigated the dynamics of a femtosecond (fs) laser induced bio-printing with cell-free and cell-laden jets under the variation of laser pulse energy and focus depth, by using time-resolved imaging. By increasing the laser pulse energy or decreasing the focus depth thresholds for a first and second jet are exceeded and more laser pulse energy is converted to kinetic jet energy. With increasing jet velocity, the jet behavior changes from a well-defined laminar jet, to a curved jet and further to an undesired splashing jet. We quantified the observed jet forms with the dimensionless hydrodynamic Weber and Rayleigh numbers and identified the Rayleigh breakup regime as the preferred process window for single cell bioprinting. Herein, the best spatial printing resolution of 42 ± 3 µm and single cell positioning precision of 12.4 µm are reached, which is less than one single cell diameter about 15 µm.
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Affiliation(s)
- Jun Zhang
- Lasercenter, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
- Center for Applied Tissue Engineering and Regenerative Medicine CANTER, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
- Center for NanoScience, University of Munich, 80799 Munich, Germany
- Department of Musculoskeletal Tissue Regeneration, Orthopaedic Hospital König-Ludwig-Haus, University of Wuerzburg, 97076 Wuerzburg, Germany
| | - Christine Frank
- Lasercenter, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
| | - Patrick Byers
- Lasercenter, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
| | - Sasa Djordjevic
- Lasercenter, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
| | - Denitsa Docheva
- Department of Musculoskeletal Tissue Regeneration, Orthopaedic Hospital König-Ludwig-Haus, University of Wuerzburg, 97076 Wuerzburg, Germany
| | - Hauke Clausen-Schaumann
- Center for Applied Tissue Engineering and Regenerative Medicine CANTER, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
- Center for NanoScience, University of Munich, 80799 Munich, Germany
| | - Stefanie Sudhop
- Center for Applied Tissue Engineering and Regenerative Medicine CANTER, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
- Center for NanoScience, University of Munich, 80799 Munich, Germany
| | - Heinz P Huber
- Lasercenter, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
- Center for Applied Tissue Engineering and Regenerative Medicine CANTER, Munich University of Applied Sciences, Lothstrasse 34, 80335 Munich, Germany
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4
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Xu HQ, Liu JC, Zhang ZY, Xu CX. A review on cell damage, viability, and functionality during 3D bioprinting. Mil Med Res 2022; 9:70. [PMID: 36522661 PMCID: PMC9756521 DOI: 10.1186/s40779-022-00429-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/11/2022] [Indexed: 12/23/2022] Open
Abstract
Three-dimensional (3D) bioprinting fabricates 3D functional tissues/organs by accurately depositing the bioink composed of the biological materials and living cells. Even though 3D bioprinting techniques have experienced significant advancement over the past decades, it remains challenging for 3D bioprinting to artificially fabricate functional tissues/organs with high post-printing cell viability and functionality since cells endure various types of stress during the bioprinting process. Generally, cell viability which is affected by several factors including the stress and the environmental factors, such as pH and temperature, is mainly determined by the magnitude and duration of the stress imposed on the cells with poorer cell viability under a higher stress and a longer duration condition. The maintenance of high cell viability especially for those vulnerable cells, such as stem cells which are more sensitive to multiple stresses, is a key initial step to ensure the functionality of the artificial tissues/organs. In addition, maintaining the pluripotency of the cells such as proliferation and differentiation abilities is also essential for the 3D-bioprinted tissues/organs to be similar to native tissues/organs. This review discusses various pathways triggering cell damage and the major factors affecting cell viability during different bioprinting processes, summarizes the studies on cell viabilities and functionalities in different bioprinting processes, and presents several potential approaches to protect cells from injuries to ensure high cell viability and functionality.
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Affiliation(s)
- He-Qi Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, TX, 79409, USA
| | - Jia-Chen Liu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, TX, 79409, USA
| | - Zheng-Yi Zhang
- School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Chang-Xue Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, TX, 79409, USA.
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Kim H, Park D, Jiang Z, Wei Y, Woong Kim J. Microfluidic macroemulsion stabilization through in situ interfacial coacervation of associative nanoplatelets and polyelectrolytes. J Colloid Interface Sci 2022; 614:574-582. [PMID: 35121516 DOI: 10.1016/j.jcis.2022.01.082] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/24/2022]
Abstract
HYPOTHESIS Since macroemulsions tend to break down to lower free energy, they hardly retain their initial drop state. Therefore, studies are being conducted to overcome this based on advanced interface engineering techniques, but it is still challenging. Herein we hypothesize that the stability of giant droplets can be secured without chemical bonding through the interfacial coacervation of polyelectrolyte and associative nanoplatelets. EXPERIMENTS We synthesized associative silica nanoplates (ASNPs) via polypeptide-templated silicification and consecutive wettability adjustment. To produce monodisperse macrodroplets, the inner fluid containing partially positively charged ASNPs and the outer fluid dissolving negatively charged polyacrylic acid (PAA) were coflowed through a capillary-based microfluidic channel. FINDINGS Dynamic interfacial tension and interfacial rheology measurements revealed that the migration of ASNPs and PAA from each phase to the interface led to the formation of a complex bilayered thin membrane with an enhanced interfacial modulus. In addition, we demonstrated that adjusting the surface properties of ASNPs by coupling a fluorochemical enabled the production of monodisperse fluorocarbon-in-oil-in-water double macroemulsions. These results highlighted the applicability of our microfluidics-based interfacial coacervation technology in the development of complex fluid products with visual differentiation and drug encapsulation.
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Affiliation(s)
- Hajeong Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Daehwan Park
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Zhiting Jiang
- BASF Advanced Chemicals CO., Ltd., Shanghai 200137, China
| | - Ying Wei
- BASF Advanced Chemicals CO., Ltd., Shanghai 200137, China
| | - Jin Woong Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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Touya N, Devun M, Handschin C, Casenave S, Omar NA, Gaubert A, Dusserre N, De Oliveira H, Kérourédan O, Devillard R. In vitroand in vivocharacterization of a novel tricalcium silicate-based ink for bone regeneration using laser-assisted bioprinting. Biofabrication 2022; 14. [PMID: 35203068 DOI: 10.1088/1758-5090/ac584b] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 02/24/2022] [Indexed: 11/11/2022]
Abstract
Grafts aside, current strategies employed to overcome bone loss still fail to reproduce native tissue physiology. Among the emerging bioprinting strategies, Laser-Assisted Bioprinting (LAB) offers very high resolution, allowing designing micrometric patterns in a contactless manner, providing a reproducible tool to test ink formulation. To this date, no LAB associated ink succeeded to provide a reproducible ad integrum bone regeneration on a murine calvaria critical size defect model. Using the CE approved BioRoot RCS® as a mineral addition to a collagen-enriched ink compatible with LAB, the present study describes the process of the development of a solidifying tricalcium silicate-based ink as a new bone repair promoting substrates in a LAB model. This ink formulation was mechanically characterized by rheology to adjust it for LAB. Printed aside Stromal Cells from Apical Papilla (SCAPs), this ink demonstrated a great cytocompatibility, with significant in vitro positive impact upon cell motility, and an early osteogenic differentiation response in the absence of another stimulus. Results indicated that the in vivo application of this new ink formulation to regenerate critical size bone defect tends to promote the formation of bone volume fraction without affecting the vascularization of the neo-formed tissue. The use of LAB techniques with this ink failed to demonstrate a complete bone repair, whether SCAPs were printed or not of at its direct proximity. The relevance of the properties of this specific ink formulation would therefore rely on the quantity applied in situ as a defect filler rather than its cell modulation properties observed in vitro. For the first time, a tricalcium silicate-based printed ink, based on rheological analysis, was characterized in vitro and in vivo, giving valuable information to reach complete bone regeneration through formulation updates. This LAB-based process could be generalized to normalize the characterization of candidate ink for bone regeneration.
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Affiliation(s)
- Nicolas Touya
- University of Bordeaux, 146 rue leo saignat, Bordeaux, 33067, FRANCE
| | - Mathilde Devun
- University of Bordeaux, 146 rue leo saignat, Talence, 33405, FRANCE
| | - Charles Handschin
- Inserm U1026, Tissue Bioengineering: Bordeaux, FR, 146 rue leo saignat, Bordeaux, 33067, FRANCE
| | - Sophia Casenave
- University of Bordeaux, 146 rue leo saignat, Talence, 33405, FRANCE
| | - Naïma Ahmed Omar
- University of Bordeaux, 146 rue leo saignat, Talence, 33405, FRANCE
| | - Alexandra Gaubert
- University of Bordeaux, 146 rue leo saignat, Bordeaux, 33067, FRANCE
| | - Nathalie Dusserre
- ART Bioprint, INSERM U1026, 146 rue leo saignat, BORDEAUX, 33067, FRANCE
| | - Hugo De Oliveira
- , Université de Bordeaux, Bioingénierie tissulaire, rue Léo Saignat, 33076 Bordeaux, Bordeaux, 33067, FRANCE
| | - Olivia Kérourédan
- Bioingénierie Tissulaire, INSERM U1026, 146 rue Léo Saignat, BORDEAUX, 33067, FRANCE
| | - Raphael Devillard
- Bioingenierie tissulaire, INSERM U1026, 146 rue leo Saignat, Bordeaux, 33067, FRANCE
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The Effect of Agarose on 3D Bioprinting. Polymers (Basel) 2021; 13:polym13224028. [PMID: 34833327 PMCID: PMC8620953 DOI: 10.3390/polym13224028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 01/05/2023] Open
Abstract
In three-dimensional (3D) bioprinting, the accuracy, stability, and mechanical properties of the formed structure are very important to the overall composition and internal structure of the complex organ. In traditional 3D bioprinting, low-temperature gelatinization of gelatin is often used to construct complex tissues and organs. However, the hydrosol relies too much on the concentration of gelatin and has limited formation accuracy and stability. In this study, we take advantage of the physical crosslinking of agarose at 35–40 °C to replace the single pregelatinization effect of gelatin in 3D bioprinting, and printing composite gelatin/alginate/agarose hydrogels at two temperatures, i.e., 10 °C and 24 °C, respectively. After in-depth research, we find that the structures manufactured by the pregelatinization method of agarose are significantly more accurate, more stable, and harder than those pregelatined by gelatin. We believe that this research holds the potential to be widely used in the future organ manufacturing fields with high structural accuracy and stability.
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Kryou C, Theodorakos I, Karakaidos P, Klinakis A, Hatziapostolou A, Zergioti I. Parametric Study of Jet/Droplet Formation Process during LIFT Printing of Living Cell-Laden Bioink. MICROMACHINES 2021; 12:mi12111408. [PMID: 34832817 PMCID: PMC8617988 DOI: 10.3390/mi12111408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/12/2021] [Accepted: 11/12/2021] [Indexed: 01/17/2023]
Abstract
Bioprinting offers great potential for the fabrication of three-dimensional living tissues by the precise layer-by-layer printing of biological materials, including living cells and cell-laden hydrogels. The laser-induced forward transfer (LIFT) of cell-laden bioinks is one of the most promising laser-printing technologies enabling biofabrication. However, for it to be a viable bioprinting technology, bioink printability must be carefully examined. In this study, we used a time-resolved imaging system to study the cell-laden bioink droplet formation process in terms of the droplet size, velocity, and traveling distance. For this purpose, the bioinks were prepared using breast cancer cells with different cell concentrations to evaluate the effect of the cell concentration on the droplet formation process and the survival of the cells after printing. These bioinks were compared with cell-free bioinks under the same printing conditions to understand the effect of the particle physical properties on the droplet formation procedure. The morphology of the printed droplets indicated that it is possible to print uniform droplets for a wide range of cell concentrations. Overall, it is concluded that the laser fluence and the distance of the donor–receiver substrates play an important role in the printing impingement type; consequently, a careful adjustment of these parameters can lead to high-quality printing.
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Affiliation(s)
- Christina Kryou
- Department of Physics, National Technical University of Athens, 15780 Zografou, Greece; (C.K.); (I.T.)
| | - Ioannis Theodorakos
- Department of Physics, National Technical University of Athens, 15780 Zografou, Greece; (C.K.); (I.T.)
| | - Panagiotis Karakaidos
- Biomedical Research Foundation Academy of Athens, 11527 Athens, Greece; (P.K.); (A.K.)
| | - Apostolos Klinakis
- Biomedical Research Foundation Academy of Athens, 11527 Athens, Greece; (P.K.); (A.K.)
| | - Antonios Hatziapostolou
- Department of Naval Architecture, School of Engineering, University of West Attica, 12243 Athens, Greece;
| | - Ioanna Zergioti
- Department of Physics, National Technical University of Athens, 15780 Zografou, Greece; (C.K.); (I.T.)
- Institute of Communication and Computer Systems, 15780 Zografou, Greece
- Correspondence:
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Influence of the Gap between Substrates in the Laser-Induced Transference of High-Viscosity Pastes. MATERIALS 2021; 14:ma14195567. [PMID: 34639965 PMCID: PMC8509640 DOI: 10.3390/ma14195567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/08/2021] [Accepted: 09/21/2021] [Indexed: 11/20/2022]
Abstract
Laser-induced forward transfer for high-viscosity—of Pa·s—pastes differ from standard LIFT processes in its dynamics. In most techniques, the transference after setting a great gap does not modify the shape acquired by the fluid, so it stretches until it breaks into droplets. In contrast, there is no transferred material when the gap is bigger than three times the paste thickness in LIFT for high-viscosity pastes, and only a spray is observed on the acceptor using this configuration. In this work, the dynamics of the paste have been studied using a finite-element model in COMSOL Multiphysics, and the behavior of the paste varying the gap between the donor and the acceptor substrates has also been modeled. The paste bursts for great gaps, but it is confined when the acceptor is placed close enough. The obtained simulations have been compared with a previous work, in which the paste structures were photographed. The analysis of the simulations in terms of speed allows for predicting the burst of the paste—spray regime—and the construction of a printability map regarding the gap between the substrates.
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10
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Laser-based bioprinting for multilayer cell patterning in tissue engineering and cancer research. Essays Biochem 2021; 65:409-416. [PMID: 34223612 DOI: 10.1042/ebc20200093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 06/01/2021] [Accepted: 06/14/2021] [Indexed: 12/15/2022]
Abstract
3D printing, or additive manufacturing, is a process for patterning functional materials based on the digital 3D model. A bioink that contains cells, growth factors, and biomaterials are utilized for assisting cells to develop into tissues and organs. As a promising technique in regenerative medicine, many kinds of bioprinting platforms have been utilized, including extrusion-based bioprinting, inkjet bioprinting, and laser-based bioprinting. Laser-based bioprinting, a kind of bioprinting technology using the laser as the energy source, has advantages over other methods. Compared with inkjet bioprinting and extrusion-based bioprinting, laser-based bioprinting is nozzle-free, which makes it a valid tool that can adapt to the viscosity of the bioink; the cell viability is also improved because of elimination of nozzle, which could cause cell damage when the bioinks flow through a nozzle. Accurate tuning of the laser source and bioink may provide a higher resolution for reconstruction of tissue that may be transplanted used as an in vitro disease model. Here, we introduce the mechanism of this technology and the essential factors in the process of laser-based bioprinting. Then, the most potential applications are listed, including tissue engineering and cancer models. Finally, we present the challenges and opportunities faced by laser-based bioprinting.
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11
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Dou C, Perez V, Qu J, Tsin A, Xu B, Li J. A State‐of‐the‐Art Review of Laser‐Assisted Bioprinting and its Future Research Trends. CHEMBIOENG REVIEWS 2021. [DOI: 10.1002/cben.202000037] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Chaoran Dou
- The University of Texas Rio Grande Valley Department of Manufacturing and Industrial Engineering Edinburg TX USA
| | - Victoria Perez
- The University of Texas Rio Grande Valley Department of Manufacturing and Industrial Engineering Edinburg TX USA
| | - Jie Qu
- The University of Texas Rio Grande Valley Department of Mechanical Engineering Edinburg TX USA
- China University of Mining and Technology School of Electrical and Power Engineering Xuzhou Jiangsu Province China
| | - Andrew Tsin
- The University of Texas Rio Grande Valley School of Medicine Department of Molecular Science USA
| | - Ben Xu
- Mississippi State University Department of Mechanical Engineering Starkville MS USA
| | - Jianzhi Li
- The University of Texas Rio Grande Valley Department of Manufacturing and Industrial Engineering Edinburg TX USA
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12
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Janmaleki M, Liu J, Kamkar M, Azarmanesh M, Sundararaj U, Nezhad AS. Role of temperature on bio-printability of gelatin methacryloyl bioink in two-step cross-linking strategy for tissue engineering applications. Biomed Mater 2020; 16:015021. [PMID: 33325382 DOI: 10.1088/1748-605x/abbcc9] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Additive manufacturing has shown promising results in reconstructing three-dimensional (3D) living tissues for various applications, including tissue engineering, regenerative medicine, drug discovery, and high-throughput drug screening. In extrusion-based bioprinters, stable formation of filaments and high-fidelity deposition of bioinks are the primary challenges in fabrication of physiologically relevant tissue constructs. Among various bioinks, gelatin methacryloyl (GelMA) is known as a photocurable and physicochemically tunable hydrogel with a demonstrated biocompatibility and tunable biodegradation properties. The two-step crosslinking of GelMA (reversible thermal gelation and permanent photo-crosslinking) has attracted researchers to make complex tissue constructs. Despite promising results in filament formation and printability of this hydrogel, the effect of temperature on physicochemical properties, cytocompatibility, and biodegradation of the hydrogel are to be investigated. This work studies the effect of thermoreversible, physical crosslinking on printability of GelMA. The results of 3D printing of GelMA at different temperatures followed by irreversible chemical photo-crosslinking show that the decrease in temperature improves the filament formation and shape fidelity of the deposited hydrogel, particularly at the temperatures around 15 °C. Time dependant mechanical testing of the printed samples revealed that decreasing the extruding temperature increases the elastic properties of the extruded filaments. Furthermore, our novel approach in minimizing the slippage effect during rheological study enabled to measure changes in linear and non-linear viscoelastic properties of the printed samples at different temperatures. A considerable increase in storage modulus of the extruded samples printed at lower temperatures confirms their higher solid behavior. Scanning electron microscopy revealed a remarkable decrease in porosity of the extruded hydrogels by decreasing the temperature. Chemical analysis by Fourier-transform infrared spectroscopy and circular dichroism showed a direct relationship between the coil-helix transition in hydrogel macromers and its physical alterations. Finally, biodegradation and cytocompatibility of the extruded hydrogels decreased at lower extruding temperatures.
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Affiliation(s)
- Mohsen Janmaleki
- BioMEMS and Bioinspired Microfluidic Laboratory, Biomedical Engineering Graduate Program, University of Calgary, Calgary, Canada. Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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13
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Mikšys J, Arutinov G, Feinaeugle M, Römer GW. Experimental investigation of the jet-on-jet physical phenomenon in laser-induced forward transfer (LIFT). OPTICS EXPRESS 2020; 28:37436-37449. [PMID: 33379578 DOI: 10.1364/oe.401825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/06/2020] [Indexed: 06/12/2023]
Abstract
Understanding the physics behind the ejection dynamics in laser-induced forward transfer (LIFT) is of key importance in order to develop new printing techniques and overcome their limitations. In this work, a new jet-on-jet ejection phenomenon is presented and its physical origin is discussed. Time-resolved shadowgraphy imaging was employed to capture the ejection dynamics and is complemented with the photodiode intensity measurements in order to capture the light emitted by laser-induced plasma. A focus scan was conducted, which confirmed that the secondary jet is ejected due to laser-induced plasma generated at the center of the laser spot, where intensity is the highest. Five characteristic regions of the focus scan, with regards to laser fluence level and laser spot size, were distinguished. The study provides new insights in laser-induced jet dynamics and shows the possibility of overcoming the trade-off between the printing resolution and printing distance.
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Suarez-Martinez AD, Sole-Gras M, Dykes SS, Wakefield ZR, Bauer K, Majbour D, Bundy A, Pampo C, Burow ME, Siemann DW, Huang Y, Murfee WL. Bioprinting on Live Tissue for Investigating Cancer Cell Dynamics. Tissue Eng Part A 2020; 27:438-453. [PMID: 33059528 DOI: 10.1089/ten.tea.2020.0190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
A challenge in cancer research is the lack of physiologically responsive in vitro models that enable tracking of cancer cells in tissue-like environments. A model that enables real-time investigation of cancer cell migration, fate, and function during angiogenesis does not exist. Current models, such as 2D or 3D in vitro culturing, can contain multiple cell types, but they do not incorporate the complexity of intact microvascular networks. The objective of this study was to establish a tumor microvasculature model by demonstrating the feasibility of bioprinting cancer cells onto excised mouse tissue. Inkjet-printed DiI+ breast cancer cells on mesometrium tissues from C57Bl/6 mice demonstrated cancer cells' motility and proliferation through time-lapse imaging. Colocalization of DAPI+ nuclei confirmed that DiI+ cancer cells remained intact postprinting. Printed DiI+ 4T1 cells also remained viable after printing on Day 0 and after culture on Day 5. Time-lapse imaging over 5 days enabled tracking of cell migration and proliferation. The number of cells and cell area were significantly increased over time. After culture, cancer cell clusters were colocalized with angiogenic microvessels. The number of vascular islands, defined as disconnected endothelial cell segments, was increased for tissues with bioprinted cancer cells, which suggests that the early stages of angiogenesis were influenced by the presence of cancer cells. Bioprinting cathepsin L knockdown 4T1 cancer cells on wild-type tissues or nontarget 4T1 cells on NG2 knockout tissues served to validate the use of the model for probing tumor cell versus microenvironment changes. These results establish the potential for bioprinting cancer cells onto live mouse tissues to investigate cancer microvascular dynamics within a physiologically relevant microenvironment. Impact statement To keep advancing the cancer biology field, tissue engineering has been focusing on developing in vitro tumor biomimetic models that more closely resemble the native microenvironment. We introduce a novel methodology of bioprinting exogenous cancer cells onto mouse tissue that contains multiple cells and systems within native physiology to investigate cancer cell migration and interactions with nearby microvascular networks. This study corroborates the manipulation of different exogenous cells and host microenvironments that impact cancer cell dynamics in a physiologically relevant tissue. Overall, it is a new approach for delineating the effects of the microenvironment on cancer cells and vice versa.
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Affiliation(s)
- Ariana D Suarez-Martinez
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida, USA
| | - Marc Sole-Gras
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida, USA
| | - Samantha S Dykes
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, USA
| | - Zachary R Wakefield
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, USA
| | - Kevin Bauer
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida, USA
| | - Dima Majbour
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida, USA
| | - Angela Bundy
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, USA
| | - Christine Pampo
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, USA
| | - Matthew E Burow
- Department of Medicine, Tulane University, New Orleans, Louisiana, USA
| | - Dietmar W Siemann
- Department of Radiation Oncology, University of Florida, Gainesville, Florida, USA
| | - Yong Huang
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida, USA
| | - Walter Lee Murfee
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida, USA
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Abstract
Laser-induced forward transfer (LIFT) is a direct-writing technique based in the action of a laser to print a small fraction of material from a thin donor layer onto a receiving substrate. Solid donor films have been used since its origins, but the same principle of operation works for ink liquid films, too. LIFT is a nozzle-free printing technique that has almost no restrictions in the particle size and the viscosity of the ink to be printed. Thus, LIFT is a versatile technique capable for printing any functional material with which an ink can be formulated. Although its principle of operation is valid for solid and liquid layers, in this review we put the focus in the LIFT works performed with inks or liquid suspensions. The main elements of a LIFT experimental setup are described before explaining the mechanisms of ink ejection. Then, the printing outcomes are related with the ejection mechanisms and the parameters that control their characteristics. Finally, the main achievements of the technique for printing biomolecules, cells, and materials for printed electronic applications are presented.
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Yusupov V, Churbanov S, Churbanova E, Bardakova K, Antoshin A, Evlashin S, Timashev P, Minaev N. Laser-induced Forward Transfer Hydrogel Printing: A Defined Route for Highly Controlled Process. Int J Bioprint 2020; 6:271. [PMID: 33094193 PMCID: PMC7562918 DOI: 10.18063/ijb.v6i3.271] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 03/16/2020] [Indexed: 12/25/2022] Open
Abstract
Laser-induced forward transfer is a versatile, non-contact, and nozzle-free printing technique which has demonstrated high potential for different printing applications with high resolution. In this article, three most widely used hydrogels in bioprinting (2% hyaluronic acid sodium salt, 1% methylcellulose, and 1% sodium alginate) were used to study laser printing processes. For this purpose, the authors applied a laser system based on a pulsed infrared laser (1064 nm wavelength, 8 ns pulse duration, 1 – 5 J/cm2 laser fluence, and 30 μm laser spot size). A high-speed shooting showed that the increase in fluence caused a sequential change in the transfer regimes: No transfer regime, optimal jetting regime with a single droplet transfer, high speed regime, turbulent regime, and plume regime. It was demonstrated that in the optimal jetting regime, which led to printing with single droplets, the size and volume of droplets transferred to the acceptor slide increased almost linearly with the increase of laser fluence. It was also shown that the maintenance of a stable temperature (±2°C) allowed for neglecting the temperature-induced viscosity change of hydrogels. It was determined that under room conditions (20°C, humidity 50%), the hydrogel layer, due to drying processes, decreased with a speed of about 8 μm/min, which could lead to a temporal variation of the transfer process parameters. The authors developed a practical algorithm that allowed quick configuration of the laser printing process on an applied experimental setup. The configuration is provided by the change of the easily tunable parameters: Laser pulse energy, laser spot size, the distance between the donor ribbon and acceptor plate, as well as the thickness of the hydrogel layer on the donor ribbon slide.
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Affiliation(s)
- Vladimir Yusupov
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia
| | - Semyon Churbanov
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia.,Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2 Trubetskaya st., Moscow, 119991, Russia
| | - Ekaterina Churbanova
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia
| | - Ksenia Bardakova
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia.,Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2 Trubetskaya st., Moscow, 119991, Russia
| | - Artem Antoshin
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia.,Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2 Trubetskaya st., Moscow, 119991, Russia
| | - Stanislav Evlashin
- Center for Design Manufacturing and Materials, Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, Bld. 1, Moscow, 121205, Russia
| | - Peter Timashev
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia.,Institute for Regenerative Medicine, Sechenov First Moscow State Medical University, 8-2 Trubetskaya st., Moscow, 119991, Russia.,Department of Polymers and Composites, N.N.Semenov Institute of Chemical Physics, 4 Kosygin St., Moscow, 119991, Russia.,Department of Chemistry, Lomonosov Moscow State University, Leninskiye Gory 1‑3, Moscow 119991, Russia
| | - Nikita Minaev
- Institute of Photon Technologies, Federal Scientific Research Centre "Crystallography and Photonics," Russian Academy of Sciences, Pionerskaya 2, Troitsk, Moscow, 108840, Russia
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Tetsuka H, Shin SR. Materials and technical innovations in 3D printing in biomedical applications. J Mater Chem B 2020; 8:2930-2950. [PMID: 32239017 PMCID: PMC8092991 DOI: 10.1039/d0tb00034e] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
3D printing is a rapidly growing research area, which significantly contributes to major innovations in various fields of engineering, science, and medicine. Although the scientific advancement of 3D printing technologies has enabled the development of complex geometries, there is still an increasing demand for innovative 3D printing techniques and materials to address the challenges in building speed and accuracy, surface finish, stability, and functionality. In this review, we introduce and review the recent developments in novel materials and 3D printing techniques to address the needs of the conventional 3D printing methodologies, especially in biomedical applications, such as printing speed, cell growth feasibility, and complex shape achievement. A comparative study of these materials and technologies with respect to the 3D printing parameters will be provided for selecting a suitable application-based 3D printing methodology. Discussion of the prospects of 3D printing materials and technologies will be finally covered.
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Affiliation(s)
- Hiroyuki Tetsuka
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, 65 Lansdowne Street, Cambridge, Massachusetts 02139, USA.
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Marquez A, Gómez-Fontela M, Lauzurica S, Candorcio-Simón R, Munoz-Martin D, Morales M, Ubago M, Toledo C, Lauzurica P, Molpeceres C. Fluorescence enhanced BA-LIFT for single cell detection and isolation. Biofabrication 2020; 12:025019. [DOI: 10.1088/1758-5090/ab6138] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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19
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Xiong R, Chai W, Huang Y. Laser printing-enabled direct creation of cellular heterogeneity in lab-on-a-chip devices. LAB ON A CHIP 2019; 19:1644-1656. [PMID: 30924821 DOI: 10.1039/c9lc00117d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Lab-on-a-chip devices, capable of culturing living cells in continuously perfused, micrometer-sized channels, have been intensively investigated to model physiological microenvironments for cell-related testing and evaluation applications. Various chemical, physical, and/or biological culture cues are usually expected in a designed chip to mimic the in vivo environment with defined spatial heterogeneity of cells and biomaterials. To create such heterogeneity within a given chip, typical methods rely heavily on sophisticated fabrication and cell seeding processes, and chips fabricated with these methods are difficult to readily adapt for other applications. In this study, laser-induced forward transfer (LIFT)-based printing has been implemented to create heterogeneous cellular patterns in a lab-on-a-chip device to achieve the efficiency in creating heterogeneous cellular patterns as well as the flexibility in adapting different evaluation configurations in lab-on-a-chip devices. Two applications, parallel evaluation of cellular behavior and targeted drug delivery to cancer cells, have been implemented as proof-of-concept demonstrations of the proposed fabrication method. For the first application, the morphology of cells in different extracellular matrix (ECM) materials cultured under varying conditions has been investigated. It is found that less stiff ECM and dynamic culturing are preferred for spreading of fibroblasts. For the second application, different drug carriers have been utilized for targeted delivery of anticancer drugs to breast cancer cells. It is found that targeted drug delivery is important to realize effective chemotherapy and drug release rate from drug carriers affects the chemotherapy effect. Consequently, the proposed laser printing-based method enables direct creation of heterogeneous cellular patterns within lab-on-a-chip devices which improves the efficiency and versatility of cell-related sensing and evaluation using lab-on-a-chip devices.
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Affiliation(s)
- Ruitong Xiong
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA.
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20
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Bittner SM, Guo JL, Melchiorri A, Mikos AG. Three-dimensional Printing of Multilayered Tissue Engineering Scaffolds. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2018; 21:861-874. [PMID: 30450010 PMCID: PMC6233733 DOI: 10.1016/j.mattod.2018.02.006] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The field of tissue engineering has produced new therapies for the repair of damaged tissues and organs, utilizing biomimetic scaffolds that mirror the mechanical and biological properties of host tissue. The emergence of three-dimensional printing (3DP) technologies has enabled the fabrication of highly complex scaffolds which offer a more accurate replication of native tissue properties and architecture than previously possible. Of strong interest to tissue engineers is the construction of multilayered scaffolds that target distinct regions of complex tissues. Musculoskeletal and dental tissues in particular, such as the osteochondral unit and periodontal complex, are composed of multiple interfacing tissue types, and thus benefit from the usage of multilayered scaffold fabrication. Traditional 3DP technologies such as extrusion printing and selective laser sintering have been used for the construction of scaffolds with gradient architectures and mixed material compositions. Additionally, emerging bioprinting strategies have been used for the direct printing and spatial patterning of cells and chemical factors, capturing the complex organization found in the body. To better replicate the varied and gradated properties of larger tissues, researchers have created scaffolds composed of multiple materials spanning natural polymers, synthetic polymers, and ceramics. By utilizing high precision 3DP techniques and judicious material selection, scaffolds can thus be designed to address the regeneration of previously challenging musculoskeletal, dental, and other heterogeneous target tissues. These multilayered 3DP strategies show great promise in the future of tissue engineering.
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Affiliation(s)
- Sean M Bittner
- Department of Bioengineering, Rice University, Houston, TX
- Center for Engineering Complex Tissues
| | - Jason L Guo
- Department of Bioengineering, Rice University, Houston, TX
| | - Anthony Melchiorri
- Department of Bioengineering, Rice University, Houston, TX
- Center for Engineering Complex Tissues
| | - Antonios G Mikos
- Department of Bioengineering, Rice University, Houston, TX
- Center for Engineering Complex Tissues
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21
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Foresti D, Kroll KT, Amissah R, Sillani F, Homan KA, Poulikakos D, Lewis JA. Acoustophoretic printing. SCIENCE ADVANCES 2018; 4:eaat1659. [PMID: 30182058 PMCID: PMC6118516 DOI: 10.1126/sciadv.aat1659] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 07/23/2018] [Indexed: 05/17/2023]
Abstract
Droplet-based printing methods are widely used in applications ranging from biological microarrays to additive manufacturing. However, common approaches, such as inkjet or electrohydrodynamic printing, are well suited only for materials with low viscosity or specific electromagnetic properties, respectively. While in-air acoustophoretic forces are material-independent, they are typically weak and have yet to be harnessed for printing materials. We introduce an acoustophoretic printing method that enables drop-on-demand patterning of a broad range of soft materials, including Newtonian fluids, whose viscosities span more than four orders of magnitude (0.5 to 25,000 mPa·s) and yield stress fluids (τ0 > 50 Pa). By exploiting the acoustic properties of a subwavelength Fabry-Perot resonator, we have generated an accurate, highly localized acoustophoretic force that can exceed the gravitational force by two orders of magnitude to eject microliter-to-nanoliter volume droplets. The versatility of acoustophoretic printing is demonstrated by patterning food, optical resins, liquid metals, and cell-laden biological matrices in desired motifs.
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Affiliation(s)
- Daniele Foresti
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
- Corresponding author. (D.F.); (J.A.L.)
| | - Katharina T. Kroll
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Robert Amissah
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Francesco Sillani
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Kimberly A. Homan
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
| | - Dimos Poulikakos
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, CH-8092 Zurich, Switzerland
| | - Jennifer A. Lewis
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA 02138, USA
- Corresponding author. (D.F.); (J.A.L.)
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22
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Ma X, Liu J, Zhu W, Tang M, Lawrence N, Yu C, Gou M, Chen S. 3D bioprinting of functional tissue models for personalized drug screening and in vitro disease modeling. Adv Drug Deliv Rev 2018; 132:235-251. [PMID: 29935988 PMCID: PMC6226327 DOI: 10.1016/j.addr.2018.06.011] [Citation(s) in RCA: 218] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 05/04/2018] [Accepted: 06/18/2018] [Indexed: 02/08/2023]
Abstract
3D bioprinting is emerging as a promising technology for fabricating complex tissue constructs with tailored biological components and mechanical properties. Recent advances have enabled scientists to precisely position materials and cells to build functional tissue models for in vitro drug screening and disease modeling. This review presents state-of-the-art 3D bioprinting techniques and discusses the choice of cell source and biomaterials for building functional tissue models that can be used for personalized drug screening and disease modeling. In particular, we focus on 3D-bioprinted liver models, cardiac tissues, vascularized constructs, and cancer models for their promising applications in medical research, drug discovery, toxicology, and other pre-clinical studies.
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Affiliation(s)
- Xuanyi Ma
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Justin Liu
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Wei Zhu
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Min Tang
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Natalie Lawrence
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Claire Yu
- Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Maling Gou
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, PR China
| | - Shaochen Chen
- Department of Bioengineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; Department of NanoEngineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA; State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu, PR China.
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23
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Koch L, Deiwick A, Franke A, Schwanke K, Haverich A, Zweigerdt R, Chichkov B. Laser bioprinting of human induced pluripotent stem cells—the effect of printing and biomaterials on cell survival, pluripotency, and differentiation. Biofabrication 2018; 10:035005. [DOI: 10.1088/1758-5090/aab981] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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24
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Study of extrudability and standoff distance effect during nanoclay-enabled direct printing. Biodes Manuf 2018. [DOI: 10.1007/s42242-018-0009-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Ng WL, Goh MH, Yeong WY, Naing MW. Applying macromolecular crowding to 3D bioprinting: fabrication of 3D hierarchical porous collagen-based hydrogel constructs. Biomater Sci 2018; 6:562-574. [DOI: 10.1039/c7bm01015j] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
3D bioprinting of hierarchical porous structures for tissue engineering.
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Affiliation(s)
- Wei Long Ng
- Singapore Centre for 3D Printing (SC3DP)
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University (NTU)
- Singapore 639798
- Singapore
| | - Min Hao Goh
- Bio-Manufacturing Programme, Singapore Institute of Manufacturing Technology (SIMTech)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
| | - Wai Yee Yeong
- Singapore Centre for 3D Printing (SC3DP)
- School of Mechanical and Aerospace Engineering
- Nanyang Technological University (NTU)
- Singapore 639798
- Singapore
| | - May Win Naing
- Bio-Manufacturing Programme, Singapore Institute of Manufacturing Technology (SIMTech)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
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26
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Tricomi BJ, Dias AD, Corr DT. Stem cell bioprinting for applications in regenerative medicine. Ann N Y Acad Sci 2017; 1383:115-124. [PMID: 27870077 DOI: 10.1111/nyas.13266] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/30/2016] [Accepted: 09/06/2016] [Indexed: 01/08/2023]
Abstract
Many regenerative medicine applications seek to harness the biologic power of stem cells in architecturally complex scaffolds or microenvironments. Traditional tissue engineering methods cannot create such intricate structures, nor can they precisely control cellular position or spatial distribution. These limitations have spurred advances in the field of bioprinting, aimed to satisfy these structural and compositional demands. Bioprinting can be defined as the programmed deposition of cells or other biologics, often with accompanying biomaterials. In this concise review, we focus on recent advances in stem cell bioprinting, including performance, utility, and applications in regenerative medicine. More specifically, this review explores the capability of bioprinting to direct stem cell fate, engineer tissue(s), and create functional vascular networks. Furthermore, the unique challenges and concerns related to bioprinting living stem cells, such as viability and maintaining multi- or pluripotency, are discussed. The regenerative capacity of stem cells, when combined with the structural/compositional control afforded by bioprinting, provides a unique and powerful tool to address the complex demands of tissue engineering and regenerative medicine applications.
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Affiliation(s)
- Brad J Tricomi
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
| | - Andrew D Dias
- Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin
| | - David T Corr
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, New York
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27
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Zhang Z, Chai W, Xiong R, Zhou L, Huang Y. Printing-induced cell injury evaluation during laser printing of 3T3 mouse fibroblasts. Biofabrication 2017. [DOI: 10.1088/1758-5090/aa6ed9] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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28
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Zhang Z, Chai W, Xiong R, Zhou L, Huang Y. Printing-induced cell injury evaluation during laser printing of 3T3 mouse fibroblasts. Biofabrication 2017. [DOI: 10.1088/1758-5090/aa6ed9/.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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29
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Zhang Z, Chai W, Xiong R, Zhou L, Huang Y. Printing-induced cell injury evaluation during laser printing of 3T3 mouse fibroblasts. Biofabrication 2017. [PMID: 28631624 DOI: 10.1088/1758-5090/aa6ed9/] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Three-dimensional bioprinting has emerged as a promising solution for the freeform fabrication of living cellular constructs, which can be used for tissue/organ transplantation and tissue models. During bioprinting, some living cells are unavoidably injured and may become necrotic or apoptotic cells. This study aims to investigate the printing-induced cell injury and evaluates injury types of post-printing cells using the annexin V/7-aminoactinomycin D and FAM-DEVD-FMK/propidium iodide assays during laser printing of NIH 3T3 mouse fibroblasts. As observed, the percentage of post-printing early apoptotic mouse fibroblasts increases with the incubation time, indicating that post-printing apoptotic mouse fibroblasts have different initiation lag times of apoptosis due to different levels of mechanical stress exerted during laser printing. Post-printing necrotic mouse fibroblasts can be detected immediately after printing, while post-printing early apoptotic mouse fibroblasts need time to develop into a late apoptotic stage. The minimum time needed for post-printing early apoptotic mouse fibroblasts to complete their apoptosis pathway and transition into late apoptotic mouse fibroblasts is from 4 h to 5 h post-printing. The resulting knowledge of the evolution of different apoptotic post-printing mouse fibroblasts will help better design future experiments to quantitatively determine, model, and mitigate the post-printing cell injury based on molecular signal pathway modeling.
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Affiliation(s)
- Zhengyi Zhang
- School of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China. Dept. of Mechanical and Aerospace Engineering, Univ. of Florida, Gainesville, FL 32611, United States of America
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Xiong R, Zhang Z, Chai W, Chrisey DB, Huang Y. Study of gelatin as an effective energy absorbing layer for laser bioprinting. Biofabrication 2017; 9:024103. [PMID: 28597844 DOI: 10.1088/1758-5090/aa74f2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Laser-induced forward transfer printing, also commonly known as laser printing, has been widely implemented for three-dimensional bioprinting due to its unique orifice-free nature during printing. However, the printing quality has the potential to be further improved for various laser bioprinting applications. The objectives of this study are to investigate the feasibility of using gelatin as an energy absorbing layer (EAL) material for laser bioprinting and its effects on the quality of printed constructs, bioink printability, and post-printing cell viability and process-induced DNA damage. The gelatin EAL is applied between the quartz support and the coating of build material, which is to be printed. Printing quality can be improved by EAL-assisted laser printing when using various alginate solutions (1%, 2%, and 4%) and cell-laden bioinks (2% alginate and 5 × 106 cells ml-1 in cell culture medium). The required laser fluence is also reduced due to a higher absorption coefficient of gelatin gel, in particular when to achieve the best printing type/quality. The post-printing cell viability is improved by ∼10% and DNA double-strand breaks are reduced by ∼50%. For all the build materials investigated, the gelatin EAL helps reduce the droplet size and average jet velocity.
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Affiliation(s)
- Ruitong Xiong
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, United States of America
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31
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3D bioprinting of cell-laden hydrogels for advanced tissue engineering. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2017. [DOI: 10.1016/j.cobme.2017.04.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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32
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Zhang Z, Xu C, Xiong R, Chrisey DB, Huang Y. Effects of living cells on the bioink printability during laser printing. BIOMICROFLUIDICS 2017; 11:034120. [PMID: 28670353 PMCID: PMC5472480 DOI: 10.1063/1.4985652] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 05/31/2017] [Indexed: 05/24/2023]
Abstract
Laser-induced forward transfer has been a promising orifice-free bioprinting technique for the direct writing of three-dimensional cellular constructs from cell-laden bioinks. In order to optimize the printing performance, the effects of living cells on the bioink printability must be carefully investigated in terms of the ability to generate well-defined jets during the jet/droplet formation process as well as well-defined printed droplets on a receiving substrate during the jet/droplet deposition process. In this study, a time-resolved imaging approach has been implemented to study the jet/droplet formation and deposition processes when printing cell-free and cell-laden bioinks under different laser fluences. It is found that the jetting behavior changes from no material transferring to well-defined jetting with or without an initial bulgy shape to jetting with a bulgy shape/pluming/splashing as the laser fluence increases. Under desirable well-defined jetting, two impingement-based deposition and printing types are identified: droplet-impingement printing and jet-impingement printing with multiple breakups. Compared with cell-free bioink printing, the transfer threshold of the cell-laden bioink is higher while the jet velocity, jet breakup length, and printed droplet size are lower, shorter, and smaller, respectively. The addition of living cells transforms the printing type from jet-impingement printing with multiple breakups to droplet-impingement printing. During the printing of cell-laden bioinks, two non-ideal jetting behaviors, a non-straight jet with a non-straight trajectory and a straight jet with a non-straight trajectory, are identified mainly due to the local nonuniformity and nonhomogeneity of cell-laden bioinks.
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Affiliation(s)
| | - Changxue Xu
- Department of Industrial, Manufacturing, and Systems Engineering, Texas Tech University, Lubbock, Texas 79409, USA
| | - Ruitong Xiong
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Douglas B Chrisey
- Department of Physics and Engineering Physics, Tulane University, New Orleans, Louisiana 70118, USA
| | - Yong Huang
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
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Koch L, Brandt O, Deiwick A, Chichkov B. Laser-assisted bioprinting at different wavelengths and pulse durations with a metal dynamic release layer: A parametric study. Int J Bioprint 2017; 3:001. [PMID: 33094176 PMCID: PMC7575628 DOI: 10.18063/ijb.2017.01.001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 11/25/2016] [Indexed: 11/23/2022] Open
Abstract
For more than a decade, living cells and biomaterials (typically hydrogels) are printed via laser-assisted bioprinting. Often, a thin metal layer is applied as laser-absorbing material called dynamic release layer (DRL). This layer is vaporized by focused laser pulses generating vapor pressure that propels forward a coated biomaterial. Different lasers with laser wavelengths from 193 to 1064 nanometer have been used. As a metal DRL gold, silver, or titanium layers have been used. The applied laser pulse durations were usually in the nanosecond range from 1 to 30 ns. In addition, some studies with femtosecond lasers have been published. However, there are no studies on the effect of all these lasers parameters on bioprinting with a metal DRL, and on comparing different wavelengths and pulse durations – except one study comparing 500 femtosecond pulses with 15 ns pulses. In this paper, the effects of laser wavelength (355, 532, and 1064 nm) and laser pulse duration (in the range of 8 to 200 ns) are investigated. Furthermore, the effects of laser pulse energy, intensity, and focal spot size are studied. The printed droplet volume, hydrogel jet velocity, and cell viability are analyzed.
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Affiliation(s)
- Lothar Koch
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
| | - Ole Brandt
- DeutschesElektronen-Synchrotron (DESY), Notkestraße 85, 22607 Hamburg, Germany
| | - Andrea Deiwick
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany
| | - Boris Chichkov
- Laser Zentrum Hannover e.V., Nanotechnology Department, Hollerithallee 8, 30419 Hannover, Germany.,Leibniz Universität Hannover, Institut für Quantenoptik, Welfengarten 1, 30167 Hannover, Germany
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Deng Y, Renaud P, Guo Z, Huang Z, Chen Y. Single cell isolation process with laser induced forward transfer. J Biol Eng 2017; 11:2. [PMID: 28101134 PMCID: PMC5237295 DOI: 10.1186/s13036-016-0045-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 12/26/2016] [Indexed: 01/31/2023] Open
Abstract
Background A viable single cell is crucial for studies of single cell biology. In this paper, laser-induced forward transfer (LIFT) was used to isolate individual cell with a closed chamber designed to avoid contamination and maintain humidity. Hela cells were used to study the impact of laser pulse energy, laser spot size, sacrificed layer thickness and working distance. The size distribution, number and proliferation ratio of separated cells were statistically evaluated. Glycerol was used to increase the viscosity of the medium and alginate were introduced to soften the landing process. Results The role of laser pulse energy, the spot size and the thickness of titanium in energy absorption in LIFT process was theoretically analyzed with Lambert-Beer and a thermal conductive model. After comprehensive analysis, mechanical damage was found to be the dominant factor affecting the size and proliferation ratio of the isolated cells. An orthogonal experiment was conducted, and the optimal conditions were determined as: laser pulse energy, 9 μJ; spot size, 60 μm; thickness of titanium, 12 nm; working distance, 700 μm;, glycerol, 2% and alginate depth, greater than 1 μm. With these conditions, along with continuous incubation, a single cell could be transferred by the LIFT with one shot, with limited effect on cell size and viability. Conclusion LIFT conducted in a closed chamber under optimized condition is a promising method for reliably isolating single cells.
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Affiliation(s)
- Yu Deng
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006 China ; Microsystems Laboratory, STI-LMIS, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland ; Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou, 510006 China
| | - Philippe Renaud
- Microsystems Laboratory, STI-LMIS, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Zhongning Guo
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006 China
| | - Zhigang Huang
- School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou, 510006 China
| | - Ying Chen
- Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou, 510006 China
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35
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He Y, Yang F, Zhao H, Gao Q, Xia B, Fu J. Research on the printability of hydrogels in 3D bioprinting. Sci Rep 2016; 6:29977. [PMID: 27436509 PMCID: PMC4951698 DOI: 10.1038/srep29977] [Citation(s) in RCA: 300] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 06/24/2016] [Indexed: 12/20/2022] Open
Abstract
As the biocompatible materials, hydrogels have been widely used in three- dimensional (3D) bioprinting/organ printing to load cell for tissue engineering. It is important to precisely control hydrogels deposition during printing the mimic organ structures. However, the printability of hydrogels about printing parameters is seldom addressed. In this paper, we systemically investigated the printability of hydrogels from printing lines (one dimensional, 1D structures) to printing lattices/films (two dimensional, 2D structures) and printing 3D structures with a special attention to the accurate printing. After a series of experiments, we discovered the relationships between the important factors such as air pressure, feedrate, or even printing distance and the printing quality of the expected structures. Dumbbell shape was observed in the lattice structures printing due to the hydrogel diffuses at the intersection. Collapses and fusion of adjacent layer would result in the error accumulation at Z direction which was an important fact that could cause printing failure. Finally, we successfully demonstrated a 3D printing hydrogel scaffold through harmonize with all the parameters. The cell viability after printing was compared with the casting and the results showed that our bioprinting method almost had no extra damage to the cells.
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Affiliation(s)
- Yong He
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- State Key Laboratory for Manufacturing Systems Engineering, Xi’an Jiaotong University, 710054, Xi’an China
| | - FeiFei Yang
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - HaiMing Zhao
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qing Gao
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bing Xia
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
| | - JianZhong Fu
- State Key Laboratory of Fluid Power and Mechatronic Systems, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
- Key Laboratory of 3D Printing Process and Equipment of Zhejiang Province, College of Mechanical Engineering, Zhejiang University, Hangzhou 310027, China
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36
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Zhang Z, Xiong R, Corr DT, Huang Y. Study of Impingement Types and Printing Quality during Laser Printing of Viscoelastic Alginate Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:3004-3014. [PMID: 26934283 DOI: 10.1021/acs.langmuir.6b00220] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Laser-induced forward transfer-based laser printing has been being implemented as a promising orifice-free direct-write strategy for different printing applications. The printing quality during laser printing is largely affected by the jet and droplet formation process and subsequential impingement. The objective of this study is to investigate the impingement-based printing type and resulting printing quality during the laser printing of viscoelastic alginate solutions, which are representative inks for soft structure printing such as bioprinting. Three printing types are identified: droplet-impingement printing, jet-impingement printing with multiple breakups, and jet-impingement printing with a single breakup. Printing quality, in terms of printed droplet morphology and size, has been investigated as a function of alginate concentration, laser fluence, and direct-writing height based on a time-resolved imaging approach and microarrays of printed droplets. Of these, the best printing quality is achieved with single-breakup jet-impingement printing, followed by multiple-breakup jet-impingement printing, with droplet-impingement printing producing the lowest quality printing. The printing quality can be improved by using high-concentration alginate solutions. The increase of laser fluence may lead to a well-defined primary droplet for low-concentration alginate solutions; however, this can cause the droplet diameter to increase, which may not be desirable. The direct-writing height (i.e., ribbon coating-receiving substrate distance) also influences the print quality. For example, an increase in direct-writing height can cause the printing type to change from the ideal jet-impingement with a single breakup, to the jet-impingement with multiple breakups, and even the least desired droplet-impingement printing, with only slight variations in droplet diameter.
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Affiliation(s)
- Zhengyi Zhang
- Department of Mechanical and Aerospace Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Ruitong Xiong
- Department of Mechanical and Aerospace Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - David T Corr
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute , Troy, New York 12180, United States
| | - Yong Huang
- Department of Mechanical and Aerospace Engineering, University of Florida , Gainesville, Florida 32611, United States
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37
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Blaeser A, Duarte Campos DF, Puster U, Richtering W, Stevens MM, Fischer H. Controlling Shear Stress in 3D Bioprinting is a Key Factor to Balance Printing Resolution and Stem Cell Integrity. Adv Healthc Mater 2016; 5:326-33. [PMID: 26626828 DOI: 10.1002/adhm.201500677] [Citation(s) in RCA: 417] [Impact Index Per Article: 52.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/05/2015] [Indexed: 11/10/2022]
Abstract
A microvalve-based bioprinting system for the manufacturing of high-resolution, multimaterial 3D-structures is reported. Applying a straightforward fluid-dynamics model, the shear stress at the nozzle site can precisely be controlled. Using this system, a broad study on how cell viability and proliferation potential are affected by different levels of shear stress is conducted. Complex, multimaterial 3D structures are printed with high resolution. This work pioneers the investigation of shear stress-induced cell damage in 3D bioprinting and might help to comprehend and improve the outcome of cell-printing studies in the future.
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Affiliation(s)
- Andreas Blaeser
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Daniela Filipa Duarte Campos
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Uta Puster
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
| | - Walter Richtering
- Institute of Physical Chemistry; RWTH Aachen University; Landoltweg 2 52074 Aachen Germany
| | - Molly M. Stevens
- Department of Materials; Department of Bioengineering and Institute of Biomedical Engineering; Imperial College London; London SW7 2AZ London UK
| | - Horst Fischer
- Department of Dental Materials and Biomaterials Research; RWTH Aachen University Hospital; Pauwelsstrasse 30 52074 Aachen Germany
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38
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Xiong R, Zhang Z, Chai W, Huang Y, Chrisey DB. Freeform drop-on-demand laser printing of 3D alginate and cellular constructs. Biofabrication 2015; 7:045011. [DOI: 10.1088/1758-5090/7/4/045011] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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39
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Gao G, Cui X. Three-dimensional bioprinting in tissue engineering and regenerative medicine. Biotechnol Lett 2015; 38:203-11. [PMID: 26466597 DOI: 10.1007/s10529-015-1975-1] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 10/07/2015] [Indexed: 12/13/2022]
Abstract
With the advances of stem cell research, development of intelligent biomaterials and three-dimensional biofabrication strategies, highly mimicked tissue or organs can be engineered. Among all the biofabrication approaches, bioprinting based on inkjet printing technology has the promises to deliver and create biomimicked tissue with high throughput, digital control, and the capacity of single cell manipulation. Therefore, this enabling technology has great potential in regenerative medicine and translational applications. The most current advances in organ and tissue bioprinting based on the thermal inkjet printing technology are described in this review, including vasculature, muscle, cartilage, and bone. In addition, the benign side effect of bioprinting to the printed mammalian cells can be utilized for gene or drug delivery, which can be achieved conveniently during precise cell placement for tissue construction. With layer-by-layer assembly, three-dimensional tissues with complex structures can be printed using converted medical images. Therefore, bioprinting based on thermal inkjet is so far the most optimal solution to engineer vascular system to the thick and complex tissues. Collectively, bioprinting has great potential and broad applications in tissue engineering and regenerative medicine. The future advances of bioprinting include the integration of different printing mechanisms to engineer biphasic or triphasic tissues with optimized scaffolds and further understanding of stem cell biology.
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Affiliation(s)
- Guifang Gao
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, 122 Luoshi Road, Wuhan, Hubei, China.,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.,Stemorgan Therapeutics, Troy, NY, USA
| | - Xiaofeng Cui
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, 122 Luoshi Road, Wuhan, Hubei, China. .,Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
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