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Griveau L, Lafont M, le Goff H, Drouglazet C, Robbiani B, Berthier A, Sigaudo-Roussel D, Latif N, Visage CL, Gache V, Debret R, Weiss P, Sohier J. Design and characterization of an in vivo injectable hydrogel with effervescently generated porosity for regenerative medicine applications. Acta Biomater 2022; 140:324-337. [PMID: 34843951 DOI: 10.1016/j.actbio.2021.11.036] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/20/2021] [Accepted: 11/23/2021] [Indexed: 12/20/2022]
Abstract
Injectable hydrogels that polymerize directly in vivo hold significant promises in clinical settings to support the repair of damaged or failing tissues. Existing systems that allow cellular and tissue ingrowth after injection are limited because of deficient porosity and lack of oxygen and nutrient diffusion inside the hydrogels. Here is reported for the first time an in vivo injectable hydrogel in which the porosity does not pre-exist but is formed concomitantly with its in situ injection by a controlled effervescent reaction. The hydrogel tailorable crosslinking, through the reaction of polyethylene glycol with lysine dendrimers, allows the mixing and injection of precursor solutions from a dual-chamber syringe while entrapping effervescently generated CO2 bubbles to form highly interconnected porous networks. The resulting structures allow preserving modular mechanical properties (from 12.7 ± 0.9 to 29.9 ± 1.7 kPa) while being cytocompatible and conducive to swift cellular attachment, proliferation, in-depth infiltration and extracellular matrix deposition. Most importantly, the subcutaneously injected porous hydrogels are biocompatible, undergo tissue remodeling and support extensive neovascularisation, which is of significant advantage for the clinical repair of damaged tissues. Thus, the porosity and injectability of the described effervescent hydrogels, together with their biocompatibility and versatility of mechanical properties, open broad perspectives for various regenerative medicine or material applications, since effervescence could be combined with a variety of other systems of swift crosslinking. STATEMENT OF SIGNIFICANCE: A major challenge in hydrogel design is the synthesis of injectable formulations allowing easy handling and dispensing in the site of interest. However, the lack of adequate porosity inside hydrogels prevent cellular entry and, therefore, vascularization and tissue ingrowth, limiting the regenerative potential of a vast majority of injectable hydrogels. We describe here the development of an acellular hydrogel that can be injected directly in situ while allowing the simultaneous formation of porosity. Such hydrogel would facilitate handling through injection while providing a porous structure supporting vascularization and tissue ingrowth.
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Affiliation(s)
- Louise Griveau
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Marianne Lafont
- Université de Nantes, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Nantes F-44000, France
| | - Héloïse le Goff
- Université de Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510-7 avenue Jean Capelle, F-69621, Villeurbanne, France
| | - Clémence Drouglazet
- Université de Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510-7 avenue Jean Capelle, F-69621, Villeurbanne, France
| | - Baptiste Robbiani
- Université de Lyon, INSA-Lyon, MATEIS, UMR CNRS 5510-7 avenue Jean Capelle, F-69621, Villeurbanne, France
| | - Aurore Berthier
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Dominique Sigaudo-Roussel
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Najma Latif
- Imperial College London, Heart Science Centre, Harefield Hospital, Harefield, Middlesex UB9 6JH, UK
| | - Catherine Le Visage
- Université de Nantes, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Nantes F-44000, France
| | - Vincent Gache
- Institut NeuroMyogène (INMG), Muscle Nuclear and Cytoskeleton Architecture (MNCA), CNRS UMR 5310-INSERM U1217-UCBL1-Université de Lyon, 8 avenue Rockefeller, Lyon 69008. France
| | - Romain Debret
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France
| | - Pierre Weiss
- Université de Nantes, Oniris, CHU Nantes, INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, Nantes F-44000, France
| | - Jérôme Sohier
- Laboratory for tissue biology and therapeutic engineering (LBTI), CNRS, Université de Lyon, UMR 5305, 7 Passage du Vercors, Lyon cedex 7 69367, France.
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Janagama D, Hui SK. 3-D Cell Culture Systems in Bone Marrow Tissue and Organoid Engineering, and BM Phantoms as In Vitro Models of Hematological Cancer Therapeutics-A Review. MATERIALS 2020; 13:ma13245609. [PMID: 33316977 PMCID: PMC7763362 DOI: 10.3390/ma13245609] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/24/2020] [Accepted: 10/29/2020] [Indexed: 12/15/2022]
Abstract
We review the state-of-the-art in bone and marrow tissue engineering (BMTE) and hematological cancer tissue engineering (HCTE) in light of the recent interest in bone marrow environment and pathophysiology of hematological cancers. This review focuses on engineered BM tissue and organoids as in vitro models of hematological cancer therapeutics, along with identification of BM components and their integration as synthetically engineered BM mimetic scaffolds. In addition, the review details interaction dynamics of various BM and hematologic cancer (HC) cell types in co-culture systems of engineered BM tissues/phantoms as well as their relation to drug resistance and cytotoxicity. Interaction between hematological cancer cells and their niche, and the difference with respect to the healthy niche microenvironment narrated. Future perspectives of BMTE for in vitro disease models, BM regeneration and large scale ex vivo expansion of hematopoietic and mesenchymal stem cells for transplantation and therapy are explained. We conclude by overviewing the clinical application of biomaterials in BM and HC pathophysiology and its challenges and opportunities.
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Vila-Parrondo C, García-Astrain C, Liz-Marzán LM. Colloidal systems toward 3D cell culture scaffolds. Adv Colloid Interface Sci 2020; 283:102237. [PMID: 32823220 DOI: 10.1016/j.cis.2020.102237] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/07/2020] [Accepted: 08/07/2020] [Indexed: 12/14/2022]
Abstract
Three-dimensional porous scaffolds are essential for the development of tissue engineering and regeneration, as biomimetic supports to recreate the microenvironment present in natural tissues. To successfully achieve the growth and development of a specific kind of tissue, porous matrices should be able to influence cell behavior by promoting close cell-cell and cell-matrix interactions. To achieve this goal, the scaffold must fulfil a set of conditions, including ordered interconnected porosity to promote cell diffusion and vascularization, mechanical strength to support the tissue during continuous ingrowth, and biocompatibility to avoid toxicity. Among various building approaches to the construction of porous matrices, selected strategies afford hierarchical scaffolds with such defined properties. The control over porosity, microstructure or morphology, is crucial to the fabrication of high-end, reproducible scaffolds for the target application. In this review, we provide an insight into recent advances toward the colloidal fabrication of hierarchical scaffolds. After identifying the main requirements for scaffolds in biomedical applications, conceptual building processes are introduced. Examples of tissue regeneration applications are provided for different scaffold types, highlighting their versatility and biocompatibility. We finally provide a prospect about the current state of the art and limitations of porous scaffolds, along with challenges that are to be addressed, so these materials consolidate in the fields of tissue engineering and drug delivery.
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Ma L, Bao L, Hu D, Zhao L, Liu T. Effect of interfacial properties on the stability of ultra-dry CO2-in-water (C/W) foams stabilized with zwitterionic surfactants and nonionic/anionic polymers: Experimental and DPD simulation. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2019.104722] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Gomes CP, Dias RCS, Costa MRPFN. Polymer Reaction Engineering Tools to Tailor Smart and Superabsorbent Hydrogels. POLYMERS AND POLYMERIC COMPOSITES: A REFERENCE SERIES 2019. [DOI: 10.1007/978-3-319-77830-3_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Wang L, Liu Y, Bao L, Hu D, Zong Y, Tong G, Zhao L, Liu T. Preparation of acrylamide-based poly-HIPEs with enhanced mechanical strength using PVDBM- b
-PEG-emulsified CO 2
-in-water emulsions. J Appl Polym Sci 2018. [DOI: 10.1002/app.46346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Liwen Wang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Yongjia Liu
- Instrumental Analysis Center; Shanghai Jiao Tong University; Shanghai 200240 People's Republic of China
| | - Lei Bao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Dongdong Hu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Yuan Zong
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Gangsheng Tong
- Instrumental Analysis Center; Shanghai Jiao Tong University; Shanghai 200240 People's Republic of China
| | - Ling Zhao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Tao Liu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
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Wen L, Wang L, Fang S, Bao L, Hu D, Zong Y, Zhao L, Liu T. Stabilization of CO 2-in-water emulsions with high internal phase volume using PVAc- b-PVP and PVP- b-PVAc- b-PVP as emulsifying agents. J Appl Polym Sci 2018. [DOI: 10.1002/app.46351] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Li Wen
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Liwen Wang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Shuyi Fang
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Lei Bao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Dongdong Hu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Yuan Zong
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Ling Zhao
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
| | - Tao Liu
- Shanghai Key Laboratory of Multiphase Materials Chemical Engineering; East China University of Science and Technology; Shanghai 200237 People's Republic of China
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Jiang S, Li SC, Huang C, Chan BP, Du Y. Physical Properties of Implanted Porous Bioscaffolds Regulate Skin Repair: Focusing on Mechanical and Structural Features. Adv Healthc Mater 2018; 7:e1700894. [PMID: 29334185 DOI: 10.1002/adhm.201700894] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/23/2017] [Indexed: 01/07/2023]
Abstract
Porous bioscaffolds are applied to facilitate skin repair since the early 1990s, but a perfect regeneration outcome has yet to be achieved. Until now, most efforts have focused on modulating the chemical properties of bioscaffolds, while physical properties are traditionally overlooked. Recent advances in mechanobiology and mechanotherapy have highlighted the importance of biomaterials' physical properties in the regulation of cellular behaviors and regenerative processes. In skin repair, the mechanical and structural features of porous bioscaffolds are two major physical properties that determine therapeutic efficacy. Here, first an overview of natural skin repair with an emphasis on the major biophysically sensitive cell types involved in this multistage process is provided, followed by an introduction of the four roles of bioscaffolds as skin implants. Then, how the mechanical and structural features of bioscaffolds influence these four roles is discussed. The mechanical and structural features of porous bioscaffolds should be tailored to balance the acceleration of wound closure and functional improvements of the repaired skin. This study emphasizes that decoupling and precise control of the mechanical and structural features of bioscaffolds are significant aspects that should be considered in future biomaterial optimization, which can build a foundation to ultimately achieve perfect skin regeneration outcomes.
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Affiliation(s)
- Shumeng Jiang
- Department of Biomedical Engineering School of Medicine Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Sabrina Cloud Li
- Department of Biomedical Engineering School of Medicine Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
| | - Chenyu Huang
- Beijing Tsinghua Changgung Hospital Tsinghua University Beijing 102218 China
| | - Barbara Pui Chan
- Tissue Engineering Laboratory Department of Mechanical Engineering The University of Hong Kong Hong Kong Special Administrative Region China
| | - Yanan Du
- Department of Biomedical Engineering School of Medicine Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases MOE Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology Tsinghua University Beijing 100084 China
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Bao L, Fang S, Hu D, Zong Y, Zhao L, Yuan W, Liu T. Stabilization of CO2-in-water emulsions by nonfluorinated surfactants with enhanced CO2-philic tails. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Zhang K, Fan Y, Dunne N, Li X. Effect of microporosity on scaffolds for bone tissue engineering. Regen Biomater 2018; 5:115-124. [PMID: 29644093 PMCID: PMC5887944 DOI: 10.1093/rb/rby001] [Citation(s) in RCA: 161] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 01/15/2018] [Indexed: 01/08/2023] Open
Abstract
Microporosity has a critical role in improving the osteogenesis of scaffolds for bone tissue engineering. Although the exact mechanism, by which it promotes new bone formation, is not well recognized yet, the related hypothesis can be found in many previous studies. This review presents those possible mechanisms about how the microporosity enhances the osteogenic-related functions of cells in vitro and the osteogenic activity of scaffolds in vivo. In summary, the increased specific surface areas by microporosity can offer more protein adsorption sites and accelerate the release of degradation products, which facilitate the interactions between scaffolds and cells. Meanwhile, the unique surface properties of microporous scaffolds have a considerable effect on the protein adsorption. Moreover, capillary force generated by the microporosity can improve the attachment of bone-related cells on the scaffolds surface, and even make the cells achieve penetration into the micropores smaller than them. This review also pays attention to the relationship between the biological and mechanical properties of microporous scaffolds. Although lots of achievements have been obtained, there is still a lot of work to do, some of which has been proposed in the conclusions and perspectives part.
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Affiliation(s)
- Ke Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 102402, China
| | - Nicholas Dunne
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
| | - Xiaoming Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.,Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 102402, China.,State Key Laboratory of New Ceramic and Fine Processing, Tsinghua University, Beijing 100084, China
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11
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Zhang T, Silverstein MS. Highly porous, emulsion-templated, zwitterionic hydrogels: amplified and accelerated uptakes with enhanced environmental sensitivity. Polym Chem 2018. [DOI: 10.1039/c8py00588e] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Highly porous, emulsion-templated, zwitterionic hydrogels exhibited amplified and accelerated uptakes, enhanced environmental sensitivity, anti-polyelectrolyte behavior, and dual-pH sensitive uptakes.
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Affiliation(s)
- Tao Zhang
- Department of Materials Science and Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
- College of Textile and Clothing Engineering
| | - Michael S. Silverstein
- Department of Materials Science and Engineering
- Technion – Israel Institute of Technology
- Haifa
- Israel
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12
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Sun M, Chen C, Chen L, Su B. Hierarchically porous materials: Synthesis strategies and emerging applications. Front Chem Sci Eng 2016. [DOI: 10.1007/s11705-016-1578-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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Viscosity and stability of ultra-high internal phase CO2-in-water foams stabilized with surfactants and nanoparticles with or without polyelectrolytes. J Colloid Interface Sci 2016; 461:383-395. [DOI: 10.1016/j.jcis.2015.08.031] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/14/2015] [Accepted: 08/18/2015] [Indexed: 11/17/2022]
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15
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16
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Luo W, Zhang S, Li P, Xu R, Zhang Y, Liang L, Wood CD, Lu Q, Tan B. Surfactant-free CO2-in-water emulsion-templated poly (vinyl alcohol) (PVA) hydrogels. POLYMER 2015. [DOI: 10.1016/j.polymer.2015.02.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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17
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Luo W, Xu R, Liu Y, Hussain I, Lu Q, Tan B. Emulsion-templated poly(acrylamide)s by using polyvinyl alcohol (PVA) stabilized CO2-in-water emulsions and their applications in tissue engineering scaffolds. RSC Adv 2015. [DOI: 10.1039/c5ra14345d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Commercially available polymer i.e., polyvinyl alcohol (PVA), is used to produce stable CO2/water emulsions. These emulsions were then used to produce emulsion templated hierarchically porous materials with interesting tissue engineering applications.
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Affiliation(s)
- Wei Luo
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Ran Xu
- Key Laboratory of Molecular Biophysics of Ministry of Education
- School of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Yunfei Liu
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
| | - Irshad Hussain
- Department of Chemistry
- SBA School of Science & Engineering
- Lahore University of Management Sciences (LUMS)
- Pakistan
| | - Qunwei Lu
- Key Laboratory of Molecular Biophysics of Ministry of Education
- School of Life Science and Technology
- Huazhong University of Science and Technology
- Wuhan
- China
| | - Bien Tan
- Key Laboratory for Large-Format Battery Materials and System
- Ministry of Education
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology
- Wuhan 430074
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Boyère C, Jérôme C, Debuigne A. Input of supercritical carbon dioxide to polymer synthesis: An overview. Eur Polym J 2014. [DOI: 10.1016/j.eurpolymj.2014.07.019] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Zhang J, Peng L, Han B. Amphiphile self-assemblies in supercritical CO2 and ionic liquids. SOFT MATTER 2014; 10:5861-5868. [PMID: 25000970 DOI: 10.1039/c4sm00890a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Supercritical (sc) CO2 and ionic liquids (ILs) are very attractive green solvents with tunable properties. Using scCO2 and ILs as alternatives of conventional solvents (water and oil) for forming amphiphile self-assemblies has many advantages. For example, the properties and structures of the amphiphile self-assemblies in these solvents can be easily modulated by tuning the properties of solvents; scCO2 has excellent solvation power and mass-transfer characteristics; ILs can dissolve both organic and inorganic substances and their properties are designable to satisfy the requirements of various applications. Therefore, the amphiphile self-assemblies in scCO2 and ILs have attracted considerable attention in recent years. This review describes the advances of using scCO2 or/and ILs as amphiphile self-assembly media in the last decade. The amphiphile self-assemblies in scCO2 and ILs are first reviewed, followed by the discussion on combination of scCO2 and ILs in creating microemulsions or emulsions. Some future directions on the amphiphile self-assemblies in scCO2 and ILs are highlighted.
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Affiliation(s)
- Jianling Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid and Interface and Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, China.
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20
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Wang F, Liang L, Ma J, Shi L, Sun J. Compressed CO
2
Accelerated the Synthesis of Mesoporous Heteroatom‐Substituted Aluminophosphates for Enhanced Catalytic Activity. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fangxiao Wang
- Natural Science Research Center, The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China
| | - Lin Liang
- State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, China, http://homepage.hit.edu.cn/pages/sunjianmin
- School of Life Sciences and Technology, Harbin Institute of Technology, Harbin 150080, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, China, http://homepage.hit.edu.cn/pages/sunjianmin
| | - Lei Shi
- Natural Science Research Center, The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China
| | - Jianmin Sun
- Natural Science Research Center, The Academy of Fundamental and Interdisciplinary Science, Harbin Institute of Technology, Harbin 150080, China
- State Key Laboratory of Urban Water Resources and Environment, Harbin Institute of Technology, Harbin 150090, China, http://homepage.hit.edu.cn/pages/sunjianmin
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Galabura Y, Soliani AP, Giammarco J, Zdyrko B, Luzinov I. Temperature controlled shape change of grafted nanofoams. SOFT MATTER 2014; 10:2567-2573. [PMID: 24647850 DOI: 10.1039/c4sm00055b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrated that nanoscale-level actuation can be, in principle, achieved with grafted polymer nanofoams by forces associated with conformational changes of stretched macromolecular chains. The nanofoams are fabricated via a two-step procedure. First, the "grafting to" technique is used to obtain a 20-200 nm anchored and cross-linked poly(glycidyl methacrylate) film. Second, the film is swollen in solvent and freeze dried until the solvent is sublimated. The grafted nanofoam possesses the behavior of a shape-memory material, exhibiting gradual mechanical contraction at the nanometer scale as temperature is increased. Both the thickness and shape-recovery ratio of the nanofoam have a close to linear dependency on temperature. We also demonstrated that by modification of the poly(glycidyl methacrylate) nanofoam with grafting low molecular weight polymers, one can tune an absolute nanoscale mechanical response of the porous polymer film.
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Affiliation(s)
- Yuriy Galabura
- Department of Materials Science and Engineering, Clemson University, Clemson, SC 29634, USA.
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Duarte ARC, Santo VE, Alves A, Silva SS, Moreira-Silva J, Silva TH, Marques AP, Sousa RA, Gomes ME, Mano JF, Reis RL. Unleashing the potential of supercritical fluids for polymer processing in tissue engineering and regenerative medicine. J Supercrit Fluids 2013. [DOI: 10.1016/j.supflu.2013.01.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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High Internal Phase Emulsion Templating - A Path To Hierarchically Porous Functional Polymers. Macromol Rapid Commun 2012; 33:1731-46. [DOI: 10.1002/marc.201200393] [Citation(s) in RCA: 250] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Indexed: 11/07/2022]
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De Colli M, Massimi M, Barbetta A, Di Rosario BL, Nardecchia S, Conti Devirgiliis L, Dentini M. A biomimetic porous hydrogel of gelatin and glycosaminoglycans cross-linked with transglutaminase and its application in the culture of hepatocytes. Biomed Mater 2012; 7:055005. [PMID: 22832766 DOI: 10.1088/1748-6041/7/5/055005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The development of blended gelatin and glycosaminoglycan (GAG) scaffolds can potentially be used in many soft tissue engineering applications since these scaffolds mimic the structure and biological function of native extracellular matrix (ECM). In this study, we were able to obtain a gelatin-GAG scaffold by using a concentrated emulsion templating technique known as high internal phase emulsion (HIPE), in which a prevailing in volume organic phase is dispersed in the form of discrete droplets inside an aqueous solution of three biopolymers represented by gelatin, hyaluronic acid (HA) and chondroitin sulfate (CS) in the presence of a suitable surfactant. In order to preserve the bioactive potential of the biopolymers employed, the cross-linking procedure involved the use of transglutaminase (MTGase) that catalyzes the formation of covalent N-ε-(γ-glutamyl) lysine amide bonds. Since neither HA nor CS possess the necessary primary amino groups toward which MTGase is active, they were functionalized with the dipeptide glycine-lysine (GK). In this way the introduction of foreign cross-linking bridging units with an unpredictable biocompatibility was avoided. These enzymatic cross-linked gelatin-GAG scaffolds were tested in the culture of primary rat and C3A hepatocytes. Results underlined the good performance of this novel support in maintaining and promoting hepatocyte functions in vitro.
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Affiliation(s)
- M De Colli
- Department of Basic and Applied Biology, University of L'Aquila, 67100 L'Aquila, Italy
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27
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Floren ML, Spilimbergo S, Motta A, Migliaresi C. Carbon dioxide induced silk protein gelation for biomedical applications. Biomacromolecules 2012; 13:2060-72. [PMID: 22657735 DOI: 10.1021/bm300450a] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a novel method to fabricate silk fibroin hydrogels using high pressure carbon dioxide (CO(2)) as a volatile acid without the need for chemical cross-linking agents or surfactants. The simple and efficient recovery of CO(2) post processing results in a remarkably clean production method offering tremendous benefit toward materials processing for biomedical applications. Further, with this novel technique we reveal that silk protein gelation can be considerably expedited under high pressure CO(2) with the formation of extensive β-sheet structures and stable hydrogels at processing times less than 2 h. We report a significant influence of the high pressure CO(2) processing environment on silk hydrogel physical properties such as porosity, sample homogeneity, swelling behavior and compressive properties. Microstructural analysis revealed improved porosity and homogeneous composition among high pressure CO(2) specimens in comparison to the less porous and heterogeneous structures of the citric acid control gels. The swelling ratios of silk hydrogels prepared under high pressure CO(2) were significantly reduced compared to the citric acid control gels, which we attribute to enhanced physical cross-linking. Mechanical properties were found to increase significantly for the silk hydrogels prepared under high pressure CO(2), with a 2- and 3-fold increase in the compressive modulus of the 2 and 4 wt % silk hydrogels over the control gels, respectively. We adopted a semiempirical theoretical model to elucidate the mechanism of silk protein gelation demonstrated here. Mechanistically, the rate of silk protein gelation is believed to be a function of the kinetics of solution acidification from absorbed CO(2) and potentially accelerated by high pressure effects. The attractive features of the method described here include the acceleration of stable silk hydrogel formation, free of residual mineral acids or chemical cross-linkers, reducing processing complexity, and avoiding adverse biological responses, while providing direct manipulation of hydrogel physical properties for tailoring toward specific biomedical applications.
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Affiliation(s)
- Michael L Floren
- Department of Materials Engineering and Industrial Technologies, University of Trento, Mattarello, 38123 Italy.
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28
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Wu D, Xu F, Sun B, Fu R, He H, Matyjaszewski K. Design and Preparation of Porous Polymers. Chem Rev 2012; 112:3959-4015. [DOI: 10.1021/cr200440z] [Citation(s) in RCA: 1339] [Impact Index Per Article: 111.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Dingcai Wu
- Materials Science Institute,
Key Laboratory for Polymeric Composite and Functional Materials of
Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, People's
Republic of China
| | - Fei Xu
- Materials Science Institute,
Key Laboratory for Polymeric Composite and Functional Materials of
Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, People's
Republic of China
| | - Bin Sun
- Materials Science Institute,
Key Laboratory for Polymeric Composite and Functional Materials of
Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, People's
Republic of China
| | - Ruowen Fu
- Materials Science Institute,
Key Laboratory for Polymeric Composite and Functional Materials of
Ministry of Education, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, People's
Republic of China
| | - Hongkun He
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh,
Pennsylvania 15213, United States
| | - Krzysztof Matyjaszewski
- Department
of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh,
Pennsylvania 15213, United States
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29
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Zorlutuna P, Annabi N, Camci-Unal G, Nikkhah M, Cha JM, Nichol JW, Manbachi A, Bae H, Chen S, Khademhosseini A. Microfabricated biomaterials for engineering 3D tissues. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:1782-804. [PMID: 22410857 PMCID: PMC3432416 DOI: 10.1002/adma.201104631] [Citation(s) in RCA: 269] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Indexed: 05/04/2023]
Abstract
Mimicking natural tissue structure is crucial for engineered tissues with intended applications ranging from regenerative medicine to biorobotics. Native tissues are highly organized at the microscale, thus making these natural characteristics an integral part of creating effective biomimetic tissue structures. There exists a growing appreciation that the incorporation of similar highly organized microscale structures in tissue engineering may yield a remedy for problems ranging from vascularization to cell function control/determination. In this review, we highlight the recent progress in the field of microscale tissue engineering and discuss the use of various biomaterials for generating engineered tissue structures with microscale features. In particular, we will discuss the use of microscale approaches to engineer the architecture of scaffolds, generate artificial vasculature, and control cellular orientation and differentiation. In addition, the emergence of microfabricated tissue units and the modular assembly to emulate hierarchical tissues will be discussed.
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Affiliation(s)
- Pinar Zorlutuna
- Center for Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA
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30
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Boyère C, Léonard AF, Grignard B, Favrelle A, Pirard JP, Paquot M, Jérôme C, Debuigne A. Synthesis of microsphere-loaded porous polymers by combining emulsion and dispersion polymerisations in supercritical carbon dioxide. Chem Commun (Camb) 2012; 48:8356-8. [DOI: 10.1039/c2cc33978a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Dehghani F, Annabi N. Engineering porous scaffolds using gas-based techniques. Curr Opin Biotechnol 2011; 22:661-6. [DOI: 10.1016/j.copbio.2011.04.005] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Accepted: 04/01/2011] [Indexed: 12/18/2022]
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32
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Ji C, Khademhosseini A, Dehghani F. Enhancing cell penetration and proliferation in chitosan hydrogels for tissue engineering applications. Biomaterials 2011; 32:9719-29. [PMID: 21925727 DOI: 10.1016/j.biomaterials.2011.09.003] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 09/01/2011] [Indexed: 12/22/2022]
Abstract
The aim of this study was to develop a process to create highly porous three-dimensional (3D) chitosan hydrogels suitable for tissue engineering applications. Chitosan was crosslinked by glutaraldehyde (0.5 vol %) under high pressure CO(2) at 60 bar and 4 °C for a period of 90 min. A gradient-depressurisation strategy was developed, which was efficient in increasing pore size and the overall porosity of resultant hydrogels. The average pore diameter increased two fold (59 μm) compared with the sample that was depressurised after complete crosslinking and hydrogel formation (32 μm). It was feasible to achieve a pore diameter of 140 μm and the porosity of hydrogels to 87% by addition of Acacia gum (AG) as a surfactant to the media. The enhancement in porosity resulted in an increased swelling ratio and decreased mechanical strength. On hydrogels with large pores (>90 μm) and high porosities (>85%), fibroblasts were able to penetrate up to 400 μm into the hydrogels with reasonable viabilities (~80%) upon static seeding. MTS assays showed that fibroblasts proliferated over 14 days. Furthermore, aligned microchannels were produced within porous hydrogels to further promote cell proliferation. The developed process can be easily used to generate homogenous pores of controlled sizes in 3D chitosan hydrogels and may be of use for a broad range of tissue engineering applications.
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Affiliation(s)
- Chengdong Ji
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney 2006, Australia
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33
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Dong X, Wang Y, Huang Y, Liu J, Jing X. Preparation of GSH-functionalized porous dextran for the selective binding of GST by high internal phase emulsion (HIPE) polymerization. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12567b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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34
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Synthesis of MFI zeolites with improved crystallization rate and mesoporosity in the presence of CO2-in-water emulsions. Catal Today 2010. [DOI: 10.1016/j.cattod.2010.03.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Chen K, Grant N, Liang L, Zhang H, Tan B. Synthesis of CO2-philic Xanthate−Oligo(vinyl acetate)-Based Hydrocarbon Surfactants by RAFT Polymerization and Their Applications on Preparation of Emulsion-Templated Materials. Macromolecules 2010. [DOI: 10.1021/ma101182f] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Keping Chen
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Neil Grant
- Department of Chemistry, University of Liverpool, L69 7ZD, Liverpool, U.K
| | - Liyun Liang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Haifei Zhang
- Department of Chemistry, University of Liverpool, L69 7ZD, Liverpool, U.K
| | - Bien Tan
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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36
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Santo VE, Duarte ARC, Gomes ME, Mano JF, Reis RL. Hybrid 3D structure of poly(d,l-lactic acid) loaded with chitosan/chondroitin sulfate nanoparticles to be used as carriers for biomacromolecules in tissue engineering. J Supercrit Fluids 2010. [DOI: 10.1016/j.supflu.2010.05.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Annabi N, Nichol JW, Zhong X, Ji C, Koshy S, Khademhosseini A, Dehghani F. Controlling the porosity and microarchitecture of hydrogels for tissue engineering. TISSUE ENGINEERING. PART B, REVIEWS 2010; 16:371-83. [PMID: 20121414 PMCID: PMC2946907 DOI: 10.1089/ten.teb.2009.0639] [Citation(s) in RCA: 739] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2009] [Accepted: 01/29/2010] [Indexed: 12/19/2022]
Abstract
Tissue engineering holds great promise for regeneration and repair of diseased tissues, making the development of tissue engineering scaffolds a topic of great interest in biomedical research. Because of their biocompatibility and similarities to native extracellular matrix, hydrogels have emerged as leading candidates for engineered tissue scaffolds. However, precise control of hydrogel properties, such as porosity, remains a challenge. Traditional techniques for creating bulk porosity in polymers have demonstrated success in hydrogels for tissue engineering; however, often the conditions are incompatible with direct cell encapsulation. Emerging technologies have demonstrated the ability to control porosity and the microarchitectural features in hydrogels, creating engineered tissues with structure and function similar to native tissues. In this review, we explore the various technologies for controlling the porosity and microarchitecture within hydrogels, and demonstrate successful applications of combining these techniques.
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Affiliation(s)
- Nasim Annabi
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, Australia
| | - Jason W. Nichol
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Xia Zhong
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, Australia
| | - Chengdong Ji
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, Australia
| | - Sandeep Koshy
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Ali Khademhosseini
- Department of Medicine, Center for Biomedical Engineering, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts
| | - Fariba Dehghani
- School of Chemical and Biomolecular Engineering, University of Sydney, Sydney, Australia
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38
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Annabi N, Mithieux SM, Weiss AS, Dehghani F. Cross-linked open-pore elastic hydrogels based on tropoelastin, elastin and high pressure CO2. Biomaterials 2009; 31:1655-65. [PMID: 19969349 DOI: 10.1016/j.biomaterials.2009.11.051] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Accepted: 11/17/2009] [Indexed: 11/30/2022]
Abstract
In this study the effect of high pressure CO(2) on the synthesis and characteristics of elastin-based hybrid hydrogels was investigated. Tropoelastin/alpha-elastin hybrid hydrogels were fabricated by chemically cross-linking tropoelastin/alpha-elastin solutions with glutaraldehyde at high pressure CO(2). Dense gas CO(2) had a significant impact on the characteristics of the fabricated hydrogels including porosity, swelling ratio, compressive properties, and modulus of elasticity. Compared to fabrication at atmospheric pressure high pressure CO(2) based construction eliminated the skin-like formation on the top surfaces of hydrogels and generated larger pores with an average pore size of 78 +/- 17 microm. The swelling ratios of composite hydrogels fabricated at high pressure CO(2) were lower than the gels produced at atmospheric pressure as a result of a higher degree of cross-linking. Dense gas CO(2) substantially increased the mechanical properties of fabricated hydrogels. The compressive and tensile modulus of 50/50 weight ratio tropoelastin/alpha-elastin composite hydrogels were enhanced 2 and 2.5 fold, respectively, when the pressure was increased from 1 to 60 bar. In vitro studies show that the presence of large pores throughout the hydrogel matrix fabricated at high pressure CO(2) enabled the migration of human skin fibroblast cells 300 microm into the construct.
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Affiliation(s)
- Nasim Annabi
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia
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39
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Barbetta A, Gumiero A, Pecci R, Bedini R, Dentini M. Gas-in-Liquid Foam Templating as a Method for the Production of Highly Porous Scaffolds. Biomacromolecules 2009; 10:3188-92. [DOI: 10.1021/bm901051c] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrea Barbetta
- Department of Chemistry, La Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy, and Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Andrea Gumiero
- Department of Chemistry, La Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy, and Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Raffaella Pecci
- Department of Chemistry, La Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy, and Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Rossella Bedini
- Department of Chemistry, La Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy, and Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
| | - Mariella Dentini
- Department of Chemistry, La Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy, and Department of Technology and Health, Istituto Superiore di Sanità, Viale Regina Elena 299, I-00161 Rome, Italy
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40
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Chronopoulou L, Fratoddi I, Palocci C, Venditti I, Russo MV. Osmosis based method drives the self-assembly of polymeric chains into micro- and nanostructures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:11940-11946. [PMID: 19572495 DOI: 10.1021/la9016382] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Polymers derived from monomers with a variety of functionalities provide materials with a vast range of properties and applications. Worldwide research has recently developed a wide number of methods suitable for the preparation of polymeric materials of nanometric dimensions, in view of the fact that, at the nanoscale level, new and unexpected properties emerge and lead to innovative applications. In this framework, we have exploited an easy method for the generation of nanostructures, regardless of the chemical structure of the pristine amorphous polymers, that is, biopolymers (e.g., polysaccharides) and synthetic, functional, and structural polymers (i.e, polystyrene, polymethylmethacrylates, polyacetylenes, and polymetallaynes). The nanostructure of these macromolecules, considered as the prototypes of various classes of polymeric materials, was achieved by using a simple and versatile procedure based on an osmotic method (OBM). Depending on the choice of solvent/nonsolvent pairs, the dialysis membrane molecular weight cutoff (MWCO), temperature, and polymer concentration, different morphologies can be obtained (e.g., spheres, sponges, disks, and fibers); also, a tuning of the nanoparticle dimensions ranging from the micro- to nanoscale has been obtained.
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Affiliation(s)
- Laura Chronopoulou
- Department of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, Rome 00185, Italy
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41
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Synthesis of highly porous crosslinked elastin hydrogels and their interaction with fibroblasts in vitro. Biomaterials 2009; 30:4550-7. [DOI: 10.1016/j.biomaterials.2009.05.014] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Accepted: 05/10/2009] [Indexed: 11/22/2022]
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42
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Barbetta A, Dentini M, Leandri L, Ferraris G, Coletta A, Bernabei M. Synthesis and characterization of porous glycidylmethacrylate–divinylbenzene monoliths using the high internal phase emulsion approach. REACT FUNCT POLYM 2009. [DOI: 10.1016/j.reactfunctpolym.2009.05.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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43
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Barbetta A, Barigelli E, Dentini M. Porous Alginate Hydrogels: Synthetic Methods for Tailoring the Porous Texture. Biomacromolecules 2009; 10:2328-37. [DOI: 10.1021/bm900517q] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrea Barbetta
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy
| | - Elena Barigelli
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy
| | - Mariella Dentini
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy
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44
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The fabrication of elastin-based hydrogels using high pressure CO2. Biomaterials 2009; 30:1-7. [DOI: 10.1016/j.biomaterials.2008.09.031] [Citation(s) in RCA: 107] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2008] [Accepted: 09/02/2008] [Indexed: 11/17/2022]
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45
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Determination of critical micelle concentration with the rotating sample system. Anal Bioanal Chem 2008; 392:1391-6. [DOI: 10.1007/s00216-008-2404-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2008] [Revised: 09/08/2008] [Accepted: 09/10/2008] [Indexed: 10/21/2022]
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46
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Barbetta A, Massimi M, Di Rosario B, Nardecchia S, De Colli M, Devirgiliis LC, Dentini M. Emulsion Templated Scaffolds that Include Gelatin and Glycosaminoglycans. Biomacromolecules 2008; 9:2844-56. [DOI: 10.1021/bm800599d] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Barbetta
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
| | - Mara Massimi
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
| | - Biancalucia Di Rosario
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
| | - Stefania Nardecchia
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
| | - Marianna De Colli
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
| | - Laura Conti Devirgiliis
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
| | - Mariella Dentini
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro, 5, 00185 Rome, Italy, and Department of Basic and Applied Biology, University of L’Aquila, Via Vetoio, 67010 L’Aquila, Italy
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