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Sreepadmanabh M, Arun AB, Bhattacharjee T. Design approaches for 3D cell culture and 3D bioprinting platforms. BIOPHYSICS REVIEWS 2024; 5:021304. [PMID: 38765221 PMCID: PMC11101206 DOI: 10.1063/5.0188268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 04/01/2024] [Indexed: 05/21/2024]
Abstract
The natural habitat of most cells consists of complex and disordered 3D microenvironments with spatiotemporally dynamic material properties. However, prevalent methods of in vitro culture study cells under poorly biomimetic 2D confinement or homogeneous conditions that often neglect critical topographical cues and mechanical stimuli. It has also become increasingly apparent that cells in a 3D conformation exhibit dramatically altered morphological and phenotypical states. In response, efforts toward designing biomaterial platforms for 3D cell culture have taken centerstage over the past few decades. Herein, we present a broad overview of biomaterials for 3D cell culture and 3D bioprinting, spanning both monolithic and granular systems. We first critically evaluate conventional monolithic hydrogel networks, with an emphasis on specific experimental requirements. Building on this, we document the recent emergence of microgel-based 3D growth media as a promising biomaterial platform enabling interrogation of cells within porous and granular scaffolds. We also explore how jammed microgel systems have been leveraged to spatially design and manipulate cellular structures using 3D bioprinting. The advent of these techniques heralds an unprecedented ability to experimentally model complex physiological niches, with important implications for tissue bioengineering and biomedical applications.
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Affiliation(s)
- M Sreepadmanabh
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, Karnataka, India
| | - Ashitha B. Arun
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, Karnataka, India
| | - Tapomoy Bhattacharjee
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore 560065, Karnataka, India
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2
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Dijksman JA, Mullin T. Confinement controls the creep rate in soft granular packings. SOFT MATTER 2024; 20:4015-4020. [PMID: 38690841 DOI: 10.1039/d3sm01755a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
Flow in soft materials encompasses a wide range of viscous, plastic and elastic phenomena which provide challenges to modelling at the microscopic level. To create a controlled flow, we perform falling ball viscometry tests on packings of soft, frictionless hydrogel spheres. Systematic creep flow is found when a controlled driving stress is applied to a sinking sphere embedded in a packing. Here, we take the novel approach of applying an additional global confinement stress to the packing using an external load. This has enabled us to identify two distinct creep regimes. When confinement stress is small, the creep rate is independent of the load imposed. For larger confinement stresses, we find that the creep rate is set by the mechanical load acting on the packing. In the latter regime, the creep rate depends exponentially on the imposed stress. We can combine the two regimes via a rescaling onto a master curve, capturing the creep rate over five orders of magnitude. Our results indicate that bulk creep phenomena in these soft materials can be subtly controlled using an external mechanical force.
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Affiliation(s)
- Joshua A Dijksman
- Van der Waals-Zeeman Institute, Institute of Physics, Science Park 904, 1094KS, Amsterdam, The Netherlands.
| | - Tom Mullin
- The Mathematical Institute and Linacre College, University of Oxford, OX2 6GG, UK.
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3
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Graham AJ, Khoo MW, Srivastava V, Viragova S, Parekh K, Morley CD, Bird M, Lebel P, Kumar S, Klein O, Gómez-Sjöberg R, Gartner ZJ. MAGIC matrices: freeform bioprinting materials to support complex and reproducible organoid morphogenesis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.01.578324. [PMID: 38370663 PMCID: PMC10871257 DOI: 10.1101/2024.02.01.578324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Organoids are powerful models of tissue physiology, yet their applications remain limited due to a lack of complex tissue morphology and high organoid-to-organoid structural variability. To address these limitations we developed a soft, composite yield-stress extracellular matrix that supports freeform 3D bioprinting of cell slurries at tissue-like densities. Combined with a custom piezoelectric printhead, this platform allows more reproducible and complex morphogenesis from uniform and spatially organized organoid "seeds." At 4 °C the material exhibits reversible yield-stress behavior to support long printing times without compromising cell viability. When transferred to cell culture at 37 °C, the material cross-links and exhibits similar viscoelasticity and plasticity to basement membrane extracts such as Matrigel. We use this setup for high-throughput generation of intestinal and salivary gland organoid arrays that are morphologically indistinguishable from those grown in pure Matrigel, but exhibit dramatically improved homogeneity in organoid size, shape, maturation time, and budding efficiency. The reproducibility of organoid structure afforded by this approach increases the sensitivity of assays by orders of magnitude, requiring less input material and reducing analysis times. The flexibility of this approach additionally enabled the fabrication of perfusable intestinal organoid tubes. Combined, these advances lay the foundation for the efficient design of complex tissue morphologies in both space and time.
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Affiliation(s)
- Austin J. Graham
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA
- Chan Zuckerberg Biohub, San Francisco, CA
| | | | - Vasudha Srivastava
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA
| | - Sara Viragova
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA
| | - Kavita Parekh
- Department of Bioengineering, University of California Berkeley, Berkeley, CA
| | - Cameron D. Morley
- Department of Bioengineering, University of California Berkeley, Berkeley, CA
| | - Malia Bird
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA
| | - Paul Lebel
- Chan Zuckerberg Biohub, San Francisco, CA
| | - Sanjay Kumar
- Department of Bioengineering, University of California Berkeley, Berkeley, CA
- Department of Chemical and Biomolecular Engineering, University of California Berkeley, Berkeley, CA
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA
| | - Ophir Klein
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA
- Department of Pediatrics, Cedars-Sinai Guerin Children’s, Los Angeles, CA
| | | | - Zev J. Gartner
- Department of Pharmaceutical Chemistry, University of California San Francisco, San Francisco, CA
- Chan Zuckerberg Biohub, San Francisco, CA
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA
- Center for Cellular Construction, University of California San Francisco, San Francisco, CA
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4
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Akgonullu DZ, Murray BS, Connell SD, Fang Y, Linter B, Sarkar A. Synthetic and biopolymeric microgels: Review of similarities and difference in behaviour in bulk phases and at interfaces. Adv Colloid Interface Sci 2023; 320:102983. [PMID: 37690329 DOI: 10.1016/j.cis.2023.102983] [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: 05/09/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 09/12/2023]
Abstract
This review discusses the current knowledge of interfacial and bulk interactions of biopolymeric microgels in relation to the well-established properties of synthetic microgels for applications as viscosity modifiers and Pickering stabilisers. We present a timeline showing the key milestones in designing microgels and their bulk/ interfacial performance. Poly(N-isopropylacrylamide) (pNIPAM) microgels have remained as the protagonist in the synthetic microgel domain whilst proteins or polysaccharides have been primarily used to fabricate biopolymeric microgels. Bulk properties of microgel dispersions are dominated by the volume fraction (ϕ) of the microgel particles, but ϕ is difficult to pinpoint, as addressed by many theoretical models. By evaluating recent experimental studies over the last five years, we find an increasing focus on the analysis of microgel elasticity as a key parameter in modulating their packing at the interfaces, within the provinces of both synthetic and biopolymeric systems. Production methods and physiochemical factors shown to influence microgel swelling in the aqueous phase can have a significant impact on their bulk as well as interfacial performance. Compared to synthetic microgels, biopolymer microgels show a greater tendency for polydispersity and aggregation and do not appear to have a core-corona structure. Comprehensive studies of biopolymeric microgels are still lacking, for example, to accurately determine their inter- and intra- particle interactions, whilst a wider variety of techniques need to be applied in order to allow comparisons to real systems of practical usage.
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Affiliation(s)
- Daisy Z Akgonullu
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds, UK
| | - Brent S Murray
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds, UK
| | - Simon D Connell
- Molecular and Nanoscale Physics Group, School of Physics and Astronomy, University of Leeds, UK
| | - Yuan Fang
- PepsiCo, Valhalla, New York, NY, USA
| | | | - Anwesha Sarkar
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds, UK.
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5
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Lee S, Choi G, Yang YJ, Joo KI, Cha HJ. Visible light-crosslinkable tyramine-conjugated alginate-based microgel bioink for multiple cell-laden 3D artificial organ. Carbohydr Polym 2023; 313:120895. [PMID: 37182936 DOI: 10.1016/j.carbpol.2023.120895] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 03/23/2023] [Accepted: 04/07/2023] [Indexed: 05/16/2023]
Abstract
While the natural carbohydrate alginate has enabled effective three-dimensional (3D) extrusion bioprinting, it still suffers from some issues such as low printability and resolution and limited cellular function due to ionic crosslinking dependency. Here, we prepared a harmless visible light-based photocrosslinkable alginate by chemically bonding tyrosine-like residues onto alginate chains to propose a new microgel manufacturing system for the development of 3D-printed bioinks. The photocrosslinkable tyramine-conjugated alginate microgel achieved both higher cell viability and printing resolution compared to the bulk gel form. This alginate-based jammed granular microgel bioink showed excellent 3D bioprinting ability with maintained structural stability. As a biocompatible material, the developed multiple cell-loaded photocrosslinkable alginate-based microgel bioink provided excellent proliferation and migration abilities of laden living cells, providing an effective strategy to construct implantable functional artificial organ structures for 3D bioprinting-based tissue engineering.
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Affiliation(s)
- Sangmin Lee
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Geunho Choi
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea
| | - Yun Jung Yang
- Department of Biological Engineering, Inha University, Incheon 22212, Republic of Korea
| | - Kye Il Joo
- Division of Chemical Engineering and Materials Science, Ewha Womans University, Seoul 03760, Republic of Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
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6
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Rahman AM, Rahman TT, Pei Z, Ufodike CO, Lee J, Elwany A. Additive Manufacturing Using Agriculturally Derived Biowastes: A Systematic Literature Review. Bioengineering (Basel) 2023; 10:845. [PMID: 37508872 PMCID: PMC10376353 DOI: 10.3390/bioengineering10070845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/09/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Agriculturally derived biowastes can be transformed into a diverse range of materials, including powders, fibers, and filaments, which can be used in additive manufacturing methods. This review study reports a study that analyzes the existing literature on the development of novel materials from agriculturally derived biowastes for additive manufacturing methods. A review was conducted of 57 selected publications since 2016 covering various agriculturally derived biowastes, different additive manufacturing methods, and potential large-scale applications of additive manufacturing using these materials. Wood, fish, and algal cultivation wastes were also included in the broader category of agriculturally derived biowastes. Further research and development are required to optimize the use of agriculturally derived biowastes for additive manufacturing, particularly with regard to material innovation, improving print quality and mechanical properties, as well as exploring large-scale industrial applications.
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Affiliation(s)
- Al Mazedur Rahman
- Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Taieba Tuba Rahman
- Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Zhijian Pei
- Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Chukwuzubelu Okenwa Ufodike
- Department of Engineering Technology and Industrial Distribution, Texas A&M University, College Station, TX 77843, USA
- J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Jaesung Lee
- Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Alaa Elwany
- Department of Industrial & Systems Engineering, Texas A&M University, College Station, TX 77843, USA
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7
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Esmaeili M, Norouzi S, George K, Rezvan G, Taheri-Qazvini N, Sadati M. 3D Printing-Assisted Self-Assembly to Bio-Inspired Bouligand Nanostructures. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206847. [PMID: 36732856 DOI: 10.1002/smll.202206847] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 01/17/2023] [Indexed: 05/11/2023]
Abstract
Architected materials with nano/microscale orders can provide superior mechanical properties; however, reproducing such levels of ordering in complex structures has remained challenging. Inspired by Bouligand structures in nature, here, 3D printing of complex geometries with guided long-order radially twisted chiral hierarchy, using cellulose nanocrystals (CNC)-based inks is presented. Detailed rheological measurements, in situ flow analysis, polarized optical microscopy (POM), and director field analysis are employed to evaluate the chiral assembly over the printing process. It is demonstrated that shear flow forces inside the 3D printer's nozzle orient individual CNC particles forming a pseudo-nematic phase that relaxes to uniformly aligned concentric chiral nematic structures after the flow cessation. Acrylamide, a photo-curable monomer, is incorporated to arrest the concentric chiral arrangements within the printed filaments. The time series POM snapshots show that adding the photo-curable monomer at the optimized concentrations does not interfere with chiral self-assemblies and instead increases the chiral relaxation rate. Due to the liquid-like nature of the as-printed inks, optimized Carbopol microgels are used to support printed filaments before photo-polymerization. By paving the path towards developing bio-inspired materials with nanoscale hierarchies in larger-scale printed constructs, this biomimetic approach expands 3D printing materials beyond what has been realized so far.
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Affiliation(s)
- Mohsen Esmaeili
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Sepideh Norouzi
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Kyle George
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Gelareh Rezvan
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Nader Taheri-Qazvini
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
- Biomedical Engineering Program, University of South Carolina, Columbia, SC, 29208, USA
| | - Monirosadat Sadati
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
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8
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Jammed microgels fabricated via various methods for biological studies. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1310-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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9
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Ellison ST, Duraivel S, Subramaniam V, Hugosson F, Yu B, Lebowitz JJ, Khoshbouei H, Lele TP, Martindale MQ, Angelini TE. Cellular micromasonry: biofabrication with single cell precision. SOFT MATTER 2022; 18:8554-8560. [PMID: 36350122 DOI: 10.1039/d2sm01013e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In many tissues, cell type varies over single-cell length-scales, creating detailed heterogeneities fundamental to physiological function. To gain understanding of the relationship between tissue function and detailed structure, and eventually to engineer structurally and physiologically accurate tissues, we need the ability to assemble 3D cellular structures having the level of detail found in living tissue. Here we introduce a method of 3D cell assembly having a level of precision finer than the single-cell scale. With this method we create detailed cellular patterns, demonstrating that cell type can be varied over the single-cell scale and showing function after their assembly.
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Affiliation(s)
- S Tori Ellison
- Department of Material Sciences and Engineering, University of Florida, Gainesville, Florida 32611, USA.
| | - Senthilkumar Duraivel
- Department of Material Sciences and Engineering, University of Florida, Gainesville, Florida 32611, USA.
| | - Vignesh Subramaniam
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Fredrik Hugosson
- The Whitney Laboratory for Marine Bioscience, St. Augustine, Florida 32080, USA
| | - Bo Yu
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, USA
| | - Joseph J Lebowitz
- Department of Neuroscience, University of Florida, Gainesville, Florida 32611, USA
| | - Habibeh Khoshbouei
- Department of Neuroscience, University of Florida, Gainesville, Florida 32611, USA
| | - Tanmay P Lele
- Department of Biomedical Engineering, Texas A&M University, College Station, Texas 77843, USA
- Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, USA
- Department of Translational Medical Sciences, Texas A&M University, Houston, Texas 77843, USA
| | - Mark Q Martindale
- The Whitney Laboratory for Marine Bioscience, St. Augustine, Florida 32080, USA
| | - Thomas E Angelini
- Department of Material Sciences and Engineering, University of Florida, Gainesville, Florida 32611, USA.
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, Florida 32611, USA
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, Florida 32611, USA
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10
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Widener AE, Duraivel S, Angelini TE, Phelps EA. Injectable Microporous Annealed Particle Hydrogel Based on Guest-Host-Interlinked Polyethylene Glycol Maleimide Microgels. ADVANCED NANOBIOMED RESEARCH 2022; 2:2200030. [PMID: 36419640 PMCID: PMC9678130 DOI: 10.1002/anbr.202200030] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Microporous annealed particle (MAP) hydrogels have emerged as a versatile biomaterial platform for regenerative medicine. MAP hydrogels have been used for the delivery of cells and organoids but often require annealing post injection by an external source. We engineered an injectable, self-annealing MAP hydrogel with reversible interparticle linkages based on guest-host functionalized polyethylene glycol maleimide (PEG-MAL) microgels. We evaluated the effect of guest-host linkages on different types of microgels fabricated by either batch emulsion or mechanical fragmentation methods. Batch emulsion generated small spherical microgels with controllable 10-100 μm diameters and mechanical fragmentation generated irregular microgels with larger diameters (100-200 μm). Spherical microgels (15 μm) showed self-healing behavior and completely recovered from high strain while fragmented microgels (133 μm) did not recover. Guest-host interactions significantly contributed to the mechanical properties of spherical microgels but had no effect on fragmented microgels. Spherical microgels were superior to the fragmented microgels for co-injection of immune cells and pancreatic islets due to their lower force of injection, demonstrating more homogeneously distributed cells and greater cell viability after injection. Based on these studies, the spherical guest-host MAP hydrogels provide a controllable, injectable scaffold for engineered microenvironments and cell delivery applications.
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Affiliation(s)
- Adrienne E Widener
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Senthilkumar Duraivel
- Department of Materials Science and Engineering, University of Florida, Gainesville, FL, USA
| | - Thomas E Angelini
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
- Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL, USA
| | - Edward A Phelps
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
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11
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Olson RA, Lott ME, Garrison JB, Davidson CLG, Trachsel L, Pedro DI, Sawyer WG, Sumerlin BS. Inverse Miniemulsion Photoiniferter Polymerization for the Synthesis of Ultrahigh Molecular Weight Polymers. Macromolecules 2022. [DOI: 10.1021/acs.macromol.2c01239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rebecca A. Olson
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Megan E. Lott
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - John B. Garrison
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Cullen L. G. Davidson
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Lucca Trachsel
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Diego I. Pedro
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - W. Gregory Sawyer
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, United States
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12
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Dijksman JA, Mullin T. Creep Control in Soft Particle Packings. PHYSICAL REVIEW LETTERS 2022; 128:238002. [PMID: 35749185 DOI: 10.1103/physrevlett.128.238002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 02/12/2022] [Accepted: 04/28/2022] [Indexed: 06/15/2023]
Abstract
Granular packings display a wealth of mechanical features that are of widespread significance. One of these features is creep: the slow deformation under applied stress. Creep is common for many other amorphous materials such as many metals and polymers. The slow motion of creep is challenging to understand, probe, and control. We probe the creep properties of packings of soft spheres with a sinking ball viscometer. We find that in our granular packings, creep persists up to large strains and has a power law form, with diffusive dynamics. The creep amplitude is exponentially dependent on both applied stress and the concentration of hydrogel, suggesting that a competition between driving and confinement determines the dynamics. Our results provide insights into the mechanical properties of soft solids and the scaling laws provide a clear benchmark for new theory that explains creep, and provide the tantalizing prospect that creep can be controlled by a boundary stress.
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Affiliation(s)
- Joshua A Dijksman
- Physical Chemistry and Soft Matter, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, Netherlands
| | - Tom Mullin
- The Mathematical Institute and Linacre College, University of Oxford, OX2 6GG, United Kingdom
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13
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Brunel LG, Hull SM, Heilshorn SC. Engineered assistive materials for 3D bioprinting: support baths and sacrificial inks. Biofabrication 2022; 14:032001. [PMID: 35487196 PMCID: PMC10788121 DOI: 10.1088/1758-5090/ac6bbe] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 04/29/2022] [Indexed: 11/11/2022]
Abstract
Three-dimensional (3D) bioprinting is a promising technique for spatially patterning cells and materials into constructs that mimic native tissues and organs. However, a trade-off exists between printability and biological function, where weak materials are typically more suited for 3D cell culture but exhibit poor shape fidelity when printed in air. Recently, a new class of assistive materials has emerged to overcome this limitation and enable fabrication of more complex, biologically relevant geometries, even when using soft materials as bioinks. These materials include support baths, which bioinks are printed into, and sacrificial inks, which are printed themselves and then later removed. Support baths are commonly yield-stress materials that provide physical confinement during the printing process to improve resolution and shape fidelity. Sacrificial inks have primarily been used to create void spaces and pattern perfusable networks, but they can also be combined directly with the bioink to change its mechanical properties for improved printability or increased porosity. Here, we outline the advantages of using such assistive materials in 3D bioprinting, define their material property requirements, and offer case study examples of how these materials are used in practice. Finally, we discuss the remaining challenges and future opportunities in the development of assistive materials that will propel the bioprinting field forward toward creating full-scale, biomimetic tissues and organs.
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Affiliation(s)
- Lucia G Brunel
- Department of Chemical Engineering, Stanford University, Stanford, CA, United States of America
| | - Sarah M Hull
- Department of Chemical Engineering, Stanford University, Stanford, CA, United States of America
| | - Sarah C Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, United States of America
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14
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Prendergast ME, Burdick JA. Computational Modeling and Experimental Characterization of Extrusion Printing into Suspension Baths. Adv Healthc Mater 2022; 11:e2101679. [PMID: 34699689 PMCID: PMC8986563 DOI: 10.1002/adhm.202101679] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 10/07/2021] [Indexed: 01/16/2023]
Abstract
The extrusion printing of inks into suspension baths is an exciting tool, as it allows the printing of diverse and soft hydrogel inks into 3D space without the need for layer-by-layer fabrication. However, this printing process is complex and there have been limited studies to experimentally and computationally characterize the process. In this work, hydrogel inks (i.e., gelatin methacrylamide (GelMA)), suspension baths (i.e., agarose, Carbopol), and the printing process are examined via rheological, computational, and experimental analyses. Rheological data on various hydrogel inks and suspension baths is utilized to develop computational printing simulations based on Carreau constitutive viscosity models of the printing of inks within suspension baths. These results are then compared to experimental outcomes using custom print designs where features such as needle translation speed, defined in this work as print speed, are varied and printed filament resolution is quantified. Results are then used to identify print parameters for the printing of a GelMA ink into a unique guest-host hyaluronic acid suspension bath. This work emphasizes the importance of key rheological properties and print parameters for suspension bath printing and provides a computational model and experimental tools that can be used to inform the selection of print settings.
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Affiliation(s)
- Margaret E Prendergast
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, 210 South 33rd Street, Philadelphia, PA, 19104, USA
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15
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Echeverría C, Mijangos C. Rheology Applied to Microgels: Brief (Revision of the) State of the Art. Polymers (Basel) 2022; 14:1279. [PMID: 35406152 PMCID: PMC9003433 DOI: 10.3390/polym14071279] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/18/2022] [Accepted: 03/18/2022] [Indexed: 12/10/2022] Open
Abstract
The ability of polymer microgels to rapidly respond to external stimuli is of great interest in sensors, lubricants, and biomedical applications, among others. In most of their uses, microgels are subjected to shear, deformation, and compression forces or a combination of them, leading to variations in their rheological properties. This review article mainly refers to the rheology of microgels, from the hard sphere versus soft particles' model. It clearly describes the scaling theories and fractal structure formation, in particular, the Shih et al. and Wu and Morbidelli models as a tool to determine the interactions among microgel particles and, thus, the viscoelastic properties. Additionally, the most recent advances on the characterization of microgels' single-particle interactions are also described. The review starts with the definition of microgels, and a brief introduction addresses the preparation and applications of microgels and hybrid microgels.
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Affiliation(s)
- Coro Echeverría
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain;
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16
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Hua W, Mitchell K, Raymond L, Godina B, Zhao D, Zhou W, Jin Y. Fluid Bath-Assisted 3D Printing for Biomedical Applications: From Pre- to Postprinting Stages. ACS Biomater Sci Eng 2021; 7:4736-4756. [PMID: 34582176 DOI: 10.1021/acsbiomaterials.1c00910] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Fluid bath-assisted three-dimensional (3D) printing is an innovative 3D printing strategy that extrudes liquid ink materials into a fluid bath to form various 3D configurations. Since the support bath can provide in situ support, extruded filaments are able to freely construct complex 3D structures. Meanwhile, the supporting function of the fluid bath decreases the dependence of the ink material's cross-linkability, thus broadening the material selections for biomedical applications. Fluid bath-assisted 3D printing can be divided into two subcategories: embedded 3D printing and support bath-enabled 3D printing. This review will introduce and discuss three main manufacturing processes, or stages, for these two strategies. The stages that will be discussed include preprinting, printing, and postprinting. In the preprinting stage, representative fluid bath materials are introduced and the bath material preparation methods are also discussed. In addition, the design criteria of fluid bath materials including biocompatibility, rheological properties, physical/chemical stability, hydrophilicity/hydrophobicity, and other properties are proposed in order to guide the selection and design of future fluid bath materials. For the printing stage, some key technical issues discussed in this review include filament formation mechanisms in a fluid bath, effects of nozzle movement on printed structures, and design strategies for printing paths. In the postprinting stage, some commonly used postprinting processes are introduced. Finally, representative biomedical applications of fluid bath-assisted 3D printing, such as standalone organoids/tissues, biomedical microfluidic devices, and wearable and bionic devices, are summarized and presented.
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Affiliation(s)
- Weijian Hua
- Mechanical Engineering Department, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Kellen Mitchell
- Mechanical Engineering Department, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Lily Raymond
- Mechanical Engineering Department, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Beatriz Godina
- Mechanical Engineering Department, University of Nevada, Reno, Reno, Nevada 89557, United States
| | - Danyang Zhao
- School of Mechanical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Wuyi Zhou
- Key Laboratory for Biobased Materials and Energy of Ministry of Education, Guangzhou, Guangdong 510642, China.,Research Center of Biomass 3D Printing Materials, College of Materials and Energy, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yifei Jin
- Mechanical Engineering Department, University of Nevada, Reno, Reno, Nevada 89557, United States
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17
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Wanasingha N, Dorishetty P, Dutta NK, Choudhury NR. Polyelectrolyte Gels: Fundamentals, Fabrication and Applications. Gels 2021; 7:148. [PMID: 34563034 PMCID: PMC8482214 DOI: 10.3390/gels7030148] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/07/2021] [Accepted: 09/09/2021] [Indexed: 12/22/2022] Open
Abstract
Polyelectrolyte gels are an important class of polymer gels and a versatile platform with charged polymer networks with ionisable groups. They have drawn significant recent attention as a class of smart material and have demonstrated potential for a variety of applications. This review begins with the fundamentals of polyelectrolyte gels, which encompass various classifications (i.e., origin, charge, shape) and crucial aspects (ionic conductivity and stimuli responsiveness). It further centralises recent developments of polyelectrolyte gels, emphasising their synthesis, structure-property relationships and responsive properties. Sequentially, this review demonstrates how polyelectrolyte gels' flourishing properties create attractiveness to a range of applications including tissue engineering, drug delivery, actuators and bioelectronics. Finally, the review outlines the indisputable appeal, further improvements and emerging trends in polyelectrolyte gels.
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Affiliation(s)
| | | | - Naba K. Dutta
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia; (N.W.); (P.D.)
| | - Namita Roy Choudhury
- School of Engineering, STEM College, RMIT University, Melbourne, VIC 3000, Australia; (N.W.); (P.D.)
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18
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Oevreeide IH, Szydlak R, Luty M, Ahmed H, Prot V, Skallerud BH, Zemła J, Lekka M, Stokke BT. On the Determination of Mechanical Properties of Aqueous Microgels-Towards High-Throughput Characterization. Gels 2021; 7:64. [PMID: 34072792 PMCID: PMC8261632 DOI: 10.3390/gels7020064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 12/15/2022] Open
Abstract
Aqueous microgels are distinct entities of soft matter with mechanical signatures that can be different from their macroscopic counterparts due to confinement effects in the preparation, inherently made to consist of more than one domain (Janus particles) or further processing by coating and change in the extent of crosslinking of the core. Motivated by the importance of the mechanical properties of such microgels from a fundamental point, but also related to numerous applications, we provide a perspective on the experimental strategies currently available and emerging tools being explored. Albeit all techniques in principle exploit enforcing stress and observing strain, the realization differs from directly, as, e.g., by atomic force microscope, to less evident in a fluid field combined with imaging by a high-speed camera in high-throughput strategies. Moreover, the accompanying analysis strategies also reflect such differences, and the level of detail that would be preferred for a comprehensive understanding of the microgel mechanical properties are not always implemented. Overall, the perspective is that current technologies have the capacity to provide detailed, nanoscopic mechanical characterization of microgels over an extended size range, to the high-throughput approaches providing distributions over the mechanical signatures, a feature not readily accessible by atomic force microscopy and micropipette aspiration.
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Affiliation(s)
- Ingrid Haga Oevreeide
- Biophysics and Medical Technology, Department of Physics, NTNU The Norwegian University of Science and Technology, NO-7491 Trondheim, Norway; (I.H.O.); (H.A.)
| | - Renata Szydlak
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland; (R.S.); (M.L.); (J.Z.)
| | - Marcin Luty
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland; (R.S.); (M.L.); (J.Z.)
| | - Husnain Ahmed
- Biophysics and Medical Technology, Department of Physics, NTNU The Norwegian University of Science and Technology, NO-7491 Trondheim, Norway; (I.H.O.); (H.A.)
| | - Victorien Prot
- Biomechanics, Department of Structural Engineering, NTNU The Norwegian University of Science and Technology, NO-7491 Trondheim, Norway; (V.P.); (B.H.S.)
| | - Bjørn Helge Skallerud
- Biomechanics, Department of Structural Engineering, NTNU The Norwegian University of Science and Technology, NO-7491 Trondheim, Norway; (V.P.); (B.H.S.)
| | - Joanna Zemła
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland; (R.S.); (M.L.); (J.Z.)
| | - Małgorzata Lekka
- Institute of Nuclear Physics, Polish Academy of Sciences, PL-31342 Krakow, Poland; (R.S.); (M.L.); (J.Z.)
| | - Bjørn Torger Stokke
- Biophysics and Medical Technology, Department of Physics, NTNU The Norwegian University of Science and Technology, NO-7491 Trondheim, Norway; (I.H.O.); (H.A.)
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19
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Shiwarski DJ, Hudson AR, Tashman JW, Feinberg AW. Emergence of FRESH 3D printing as a platform for advanced tissue biofabrication. APL Bioeng 2021; 5:010904. [PMID: 33644626 PMCID: PMC7889293 DOI: 10.1063/5.0032777] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 01/06/2021] [Indexed: 12/15/2022] Open
Abstract
In tissue engineering, an unresolved challenge is how to build complex 3D scaffolds in order to recreate the structure and function of human tissues and organs. Additive manufacturing techniques, such as 3D bioprinting, have the potential to build biological material with unprecedented spatial control; however, printing soft biological materials in air often results in poor fidelity. Freeform Reversible Embedding of Suspended Hydrogels (FRESH) is an embedded printing approach that solves this problem by extruding bioinks within a yield-stress support bath that holds the bioinks in place until cured. In this Perspective, we discuss the challenges of 3D printing soft and liquid-like bioinks and the emergence for FRESH and related embedded printing techniques as a solution. This includes the development of FRESH and embedded 3D printing within the bioprinting field and the rapid growth in adoption, as well as the advantages of FRESH printing for biofabrication and the new research results this has enabled. Specific focus is on the customizability of the FRESH printing technique where the chemical composition of the yield-stress support bath and aqueous phase crosslinker can all be tailored for printing a wide range of bioinks in complex 3D structures. Finally, we look ahead at the future of FRESH printing, discussing both the challenges and the opportunities that we see as the biofabrication field develops.
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Affiliation(s)
- Daniel J. Shiwarski
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Andrew R. Hudson
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
| | - Joshua W. Tashman
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA
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20
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Lopez Hernandez H, Souza JW, Appel EA. A Quantitative Description for Designing the Extrudability of Shear-Thinning Physical Hydrogels. Macromol Biosci 2020; 21:e2000295. [PMID: 33164332 DOI: 10.1002/mabi.202000295] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/19/2020] [Indexed: 12/12/2022]
Abstract
Physically associated hydrogels (PHs) capable of reversible transitions between solid and liquid-like states have enabled novel strategies for 3D printing, therapeutic drug and cell delivery, and regenerative medicine. Among the many design criteria (e.g., viscoelasticity, cargo diffusivity, biocompatibility) for these applications, engineering PHs for extrudability is a necessary and critical design criterion for the successful application of these materials. As the development of many distinct PH material systems continues, a strategy to determine the extrudability of PHs a priori will be exceedingly useful for reducing costly and time-consuming trial-and-error experimentation. Here, a strategy to determine the property-function relationships for PHs in injectable drug delivery applications at clinically relevant flow rates is presented. This strategy-validated with two chemically and physically distinct PHs-reveals material design spaces in the form of Ashby-style plots that highlight acceptable, application-specific material properties. It is shown that the flow behavior of PHs does not obey a single shear-thinning power law and the implications for injectable drug delivery are discussed. This approach for generating design criteria has potential for streamlining the screening of PHs and their utility in applications with varying geometrical (i.e., needle diameter) and process (i.e., flow rate) constraints.
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Affiliation(s)
| | - Jason W Souza
- Materials Science and Engineering, Stanford University, Stanford, CA, 94305, USA
| | - Eric A Appel
- Department of Bioengineering, Stanford University, Stanford, CA, 94305, USA.,ChEM-H Institute, Stanford University, Stanford, CA, 94305, USA
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21
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Ayan B, Celik N, Zhang Z, Zhou K, Kim MH, Banerjee D, Wu Y, Costanzo F, Ozbolat IT. Aspiration-assisted freeform bioprinting of prefabricated tissue spheroids in a yield-stress gel. COMMUNICATIONS PHYSICS 2020; 3:183. [PMID: 33251340 PMCID: PMC7695349 DOI: 10.1038/s42005-020-00449-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 09/25/2020] [Indexed: 05/04/2023]
Abstract
Bioprinting of cellular aggregates, such as tissue spheroids, to form three-dimensional (3D) complex-shaped arrangements, has posed a major challenge due to lack of robust, reproducible and practical bioprinting techniques. Here, we demonstrate 3D aspiration-assisted freeform bioprinting of tissue spheroids by precisely positioning them in self-healing yield-stress gels, enabling the self-assembly of spheroids for fabrication of tissues. The presented approach enables the traverse of spheroids directly from the cell media to the gel and freeform positioning of the spheroids on demand. We study the underlying physical mechanism of the approach to elucidate the interactions between the aspirated spheroids and the gel's yield-stress during the transfer of spheroids from cell media to the gel. We further demonstrate the application of the proposed approach in the realization of various freeform shapes and self-assembly of human mesenchymal stem cell spheroids for the construction of cartilage and bone tissues.
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Affiliation(s)
- Bugra Ayan
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
- Present address: Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94035, USA
| | - Nazmiye Celik
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
| | - Zhifeng Zhang
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
| | - Kui Zhou
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
- Present address: School of Mechatronics Engineering, Nanchang University, Nanchang 330031, China
| | - Myoung Hwan Kim
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
- Biomedical Engineering Department, Penn State University, Chemical and Biomedical Engineering Bldg., University Park, PA 16802, USA
| | - Dishary Banerjee
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
| | - Yang Wu
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
- Present address: School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
| | - Francesco Costanzo
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
- Biomedical Engineering Department, Penn State University, Chemical and Biomedical Engineering Bldg., University Park, PA 16802, USA
| | - Ibrahim T Ozbolat
- Engineering Science and Mechanics Department, Penn State University, 212 Earth-Engineering Sciences Bldg., University Park, PA 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, 101 Huck Life Sciences Bldg., University Park, PA 16802, USA
- Biomedical Engineering Department, Penn State University, Chemical and Biomedical Engineering Bldg., University Park, PA 16802, USA
- Materials Research Institute, Penn State University, University Park, PA 16802, USA
- Department of Neurosurgery, Penn State College of Medicine, Hershey, PA 17033, USA
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22
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Sinjari S, Freitag JS, Herold C, Otto O, Smith DM, Stöver HDH. Tunable polymer microgel particles and their study using microscopy and
real‐time
deformability cytometry. JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1002/pol.20200274] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sheilan Sinjari
- Department of Chemistry and Chemical Biology McMaster University Hamilton Ontario Canada
| | | | | | - Oliver Otto
- ZellMechanik Dresden Dresden Germany
- Centre for Innovation Competence—Humoral Immune Reactions in Cardiovascular Disorders University of Greifswald Greifswald Germany
| | - David M. Smith
- Fraunhofer Institut für Zelltherapie und Immunologie Leipzig Germany
- University of Leipzig, Peter Debye Institute for Soft Matter Physics Leipzig Germany
- University of Leipzig Medical Faculty, Institute of Clinical Immunology Leipzig Germany
| | - Harald D. H. Stöver
- Department of Chemistry and Chemical Biology McMaster University Hamilton Ontario Canada
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23
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Morgan FLC, Moroni L, Baker MB. Dynamic Bioinks to Advance Bioprinting. Adv Healthc Mater 2020; 9:e1901798. [PMID: 32100963 DOI: 10.1002/adhm.201901798] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 01/31/2020] [Indexed: 01/06/2023]
Abstract
The development of bioinks for bioprinting of cell-laden constructs remains a challenge for tissue engineering, despite vigorous investigation. Hydrogels to be used as bioinks must fulfill a demanding list of requirements, mainly focused around printability and cell function. Recent advances in the use of supramolecular and dynamic covalent chemistry (DCvC) provide paths forward to develop bioinks. These dynamic hydrogels enable tailorability, higher printing performance, and the creation of more life-like environments for ultimate tissue maturation. This review focuses on the exploration and benefits of dynamically cross-linked bioinks for bioprinting, highlighting recent advances, benefits, and challenges in this emerging area. By incorporating internal dynamics, many benefits can be imparted to the material, providing design elements for next generation bioinks.
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Affiliation(s)
- Francis L. C. Morgan
- Department of Complex Tissue RegenerationMERLN InstituteMaastricht University 6200 MD Maastricht The Netherlands
| | - Lorenzo Moroni
- Department of Complex Tissue RegenerationMERLN InstituteMaastricht University 6200 MD Maastricht The Netherlands
| | - Matthew B. Baker
- Department of Complex Tissue RegenerationMERLN InstituteMaastricht University 6200 MD Maastricht The Netherlands
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24
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Affiliation(s)
- Wei Cheng
- State Key Laboratory of Materials‐Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 P. R. China
| | - Jing Zhang
- State Key Laboratory of Materials‐Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 P. R. China
| | - Ji Liu
- Department of Mechanical and Energy Engineering Southern University of Science and Technology Shenzhen 518055 P. R. China
| | - Ziyi Yu
- State Key Laboratory of Materials‐Oriented Chemical Engineering College of Chemical Engineering Nanjing Tech University 30 Puzhu South Road Nanjing 211816 P. R. China
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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25
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Ramon-Mateu J, Ellison ST, Angelini TE, Martindale MQ. Regeneration in the ctenophore Mnemiopsis leidyi occurs in the absence of a blastema, requires cell division, and is temporally separable from wound healing. BMC Biol 2019; 17:80. [PMID: 31604443 PMCID: PMC6788111 DOI: 10.1186/s12915-019-0695-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 08/30/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The ability to regenerate is a widely distributed but highly variable trait among metazoans. A variety of modes of regeneration has been described for different organisms; however, many questions regarding the origin and evolution of these strategies remain unanswered. Most species of ctenophore (or "comb jellies"), a clade of marine animals that branch off at the base of the animal tree of life, possess an outstanding capacity to regenerate. However, the cellular and molecular mechanisms underlying this ability are unknown. We have used the ctenophore Mnemiopsis leidyi as a system to study wound healing and adult regeneration and provide some first-time insights of the cellular mechanisms involved in the regeneration of one of the most ancient extant group of multicellular animals. RESULTS We show that cell proliferation is activated at the wound site and is indispensable for whole-body regeneration. Wound healing occurs normally in the absence of cell proliferation forming a scar-less wound epithelium. No blastema-like structure is generated at the cut site, and pulse-chase experiments and surgical intervention show that cells originating in the main regions of cell proliferation (the tentacle bulbs) do not seem to contribute to the formation of new structures after surgical challenge, suggesting a local source of cells during regeneration. While exposure to cell-proliferation blocking treatment inhibits regeneration, the ability to regenerate is recovered when the treatment ends (days after the original cut), suggesting that ctenophore regenerative capabilities are constantly ready to be triggered and they are somehow separable of the wound healing process. CONCLUSIONS Ctenophore regeneration takes place through a process of cell proliferation-dependent non-blastemal-like regeneration and is temporally separable of the wound healing process. We propose that undifferentiated cells assume the correct location of missing structures and differentiate in place. The remarkable ability to replace missing tissue, the many favorable experimental features (e.g., optical clarity, high fecundity, rapid regenerative performance, stereotyped cell lineage, sequenced genome), and the early branching phylogenetic position in the animal tree, all point to the emergence of ctenophores as a new model system to study the evolution of animal regeneration.
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Affiliation(s)
- Julia Ramon-Mateu
- The Whitney Laboratory for Marine Bioscience, 9505 N, Ocean Shore Blvd, St. Augustine, FL, 32080-8610, USA
| | - S Tori Ellison
- Department of Materials Science and Engineering, Herbert Wertheim College of Engineering, University of Florida, Gainesville, Florida, 32611, USA
| | - Thomas E Angelini
- Department of Materials Science and Engineering, Herbert Wertheim College of Engineering, University of Florida, Gainesville, Florida, 32611, USA
- Department of Mechanical and Aerospace Engineering, Herbert Wertheim College of Engineering, University of Florida, Gainesville, Florida, 32611, USA
| | - Mark Q Martindale
- The Whitney Laboratory for Marine Bioscience, 9505 N, Ocean Shore Blvd, St. Augustine, FL, 32080-8610, USA.
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