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Rodrigo MJ, Cardiel MJ, Fraile JM, Mayoral JA, Pablo LE, Garcia-Martin E. Laponite for biomedical applications: An ophthalmological perspective. Mater Today Bio 2024; 24:100935. [PMID: 38239894 PMCID: PMC10794930 DOI: 10.1016/j.mtbio.2023.100935] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/20/2023] [Accepted: 12/27/2023] [Indexed: 01/22/2024] Open
Abstract
Clay minerals have been applied in biomedicine for thousands of years. Laponite is a nanostructured synthetic clay with the capacity to retain and progressively release drugs. In recent years there has been a resurgence of interest in Laponite application in various biomedical areas. This is the first paper to review the potential biomedical applications of Laponite in ophthalmology. The introduction briefly covers the physical, chemical, rheological, and biocompatibility features of different routes of administration. After that, emphasis is placed on 1) drug delivery for antibiotics, anti-inflammatories, growth factors, other proteins, and cancer treatment; 2) bleeding prevention or treatment; and 3) tissue engineering through regenerative medicine using scaffolds in intraocular and extraocular tissue. Although most scientific research is not performed on the eye, both the findings and the new treatments resulting from that research are potentially applicable in ophthalmology since many of the drugs used are the same, the tissue evaluated in vitro or in vivo is also present in the eye, and the pathologies treated also occur in the eye. Finally, future prospects for this emerging field are discussed.
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Affiliation(s)
- Maria J. Rodrigo
- Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
| | - Maria J. Cardiel
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
- Department of Pathology, Lozano Blesa University Hospital, Zaragoza, Spain
| | - Jose M. Fraile
- Institute for Chemical Synthesis and Homogeneous Catalysis (ISQCH), Faculty of Sciences, University of Zaragoza–CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Jose A. Mayoral
- Institute for Chemical Synthesis and Homogeneous Catalysis (ISQCH), Faculty of Sciences, University of Zaragoza–CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Luis E. Pablo
- Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
- Biotech Vision SLP (spin-off Company), University of Zaragoza, Spain
| | - Elena Garcia-Martin
- Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain
- Aragon Institute for Health Research (IIS Aragon), GIMSO Research Group, University of Zaragoza (Spain), Avda. San Juan Bosco 13, E-50009 Zaragoza, Spain
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2
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Self-Healing and Super-Elastomeric PolyMEA-co-SMA Nanocomposites Crosslinked by Clay Platelets. Gels 2022; 8:gels8100657. [PMID: 36286158 PMCID: PMC9601507 DOI: 10.3390/gels8100657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 11/04/2022] Open
Abstract
Novel solvent-free ultra-extensible, tough, and self-healing nanocomposite elastomers were synthesized. The self-assembled materials were based on the copolymer matrix poly(methoxyethyl acrylate-co-sodium methacrylate) physically crosslinked by clay nano-platelets (‘poly[MEA-co-SMA]/clay’). Depending on the content of SMA, the super-elastomers were predominantly hydrophobic, water-swelling, or fully water-soluble, and hence repeatedly processible. The SMA co-monomer introduces a tremendous increase in tensile strength, an increase in toughness, while ultra-extensibility is preserved. By tuning the contents of nano-clay and SMA co-monomer, a very wide range of product properties was achieved, including extreme ultra-extensibility, or high stiffness combined with more moderate super-extensibility, or very different values of tensile strength. There was very attractive, great improvement in autonomous self-healing ability induced by SMA, combined with tremendously enhanced self-recovery of internal mechanical damage: even complete self-recovery could be achieved. The ionic SMA repeat units were found to assemble to multiplets, which are phase-separated in the hydrophobic polyMEA matrix. The dynamics of SMA-units-hopping between these aggregates was of key importance for the mechanical, visco-elastic, tensile, and self-healing properties. The studied super-elastomers are attractive as advanced self-healing materials in engineering, soft robotics, and in medical or implant applications.
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3
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Byś K, Strachota B, Strachota A, Pavlova E, Steinhart M, Mossety-Leszczak B, Zając W. Novel Tough and Transparent Ultra-Extensible Nanocomposite Elastomers Based on Poly(2-methoxyethylacrylate) and Their Switching between Plasto-Elasticity and Viscoelasticity. Polymers (Basel) 2021; 13:polym13234254. [PMID: 34883757 PMCID: PMC8659642 DOI: 10.3390/polym13234254] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/23/2021] [Accepted: 12/02/2021] [Indexed: 11/16/2022] Open
Abstract
Novel stiff, tough, highly transparent and ultra-extensible self-assembled nanocomposite elastomers based on poly(2-methoxyethylacrylate) (polyMEA) were synthesized. The materials are physically crosslinked by small in-situ-formed silica nanospheres, sized 3-5 nm, which proved to be a very efficient macro-crosslinker in the self-assembled network architecture. Very high values of yield stress (2.3 MPa), tensile strength (3.0 MPa), and modulus (typically 10 MPa), were achieved in combination with ultra-extensibility: the stiffest sample was breaking at 1610% of elongation. Related nanocomposites doubly filled with nano-silica and clay nano-platelets were also prepared, which displayed interesting synergy effects of the fillers at some compositions. All the nanocomposites exhibit 'plasto-elastic' tensile behaviour in the 'as prepared' state: they display considerable energy absorption (and also 'necking' like plastics), but at the same time a large but not complete (50%) retraction of deformation. However, after the first large tensile deformation, the materials irreversibly switch to 'real elastomeric' tensile behaviour (with some creep). The initial 'plasto-elastic' stretching thus causes an internal rearrangement. The studied materials, which additionally are valuable due to their high transparency, could be of application interest as advanced structural materials in soft robotics, in implant technology, or in regenerative medicine. The presented study focuses on structure-property relationships, and on their effects on physical properties, especially on the complex tensile, elastic and viscoelastic behaviour of the polyMEA nanocomposites.
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Affiliation(s)
- Katarzyna Byś
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Beata Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Adam Strachota
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
- Correspondence: ; Tel.: +420-296-809-451
| | - Ewa Pavlova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Miloš Steinhart
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovskeho nam. 2, CZ-162 06 Praha, Czech Republic; (K.B.); (B.S.); (E.P.); (M.S.)
| | - Beata Mossety-Leszczak
- Department of Industrial and Materials Chemistry, Faculty of Chemistry, Rzeszow University of Technology, al. Powstancow Warszawy 6, 35-959 Rzeszow, Poland;
| | - Weronika Zając
- Doctoral School of Engineering and Technical Sciences at the Rzeszow University of Technology, al. Powstancow Warszawy 12, 35-959 Rzeszow, Poland;
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4
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García-Villén F, Ruiz-Alonso S, Lafuente-Merchan M, Gallego I, Sainz-Ramos M, Saenz-del-Burgo L, Pedraz JL. Clay Minerals as Bioink Ingredients for 3D Printing and 3D Bioprinting: Application in Tissue Engineering and Regenerative Medicine. Pharmaceutics 2021; 13:1806. [PMID: 34834221 PMCID: PMC8623235 DOI: 10.3390/pharmaceutics13111806] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/13/2021] [Accepted: 10/22/2021] [Indexed: 02/06/2023] Open
Abstract
The adaptation and progress of 3D printing technology toward 3D bioprinting (specifically adapted to biomedical purposes) has opened the door to a world of new opportunities and possibilities in tissue engineering and regenerative medicine. In this regard, 3D bioprinting allows for the production of tailor-made constructs and organs as well as the production of custom implants and medical devices. As it is a growing field of study, currently, the attention is heeded on the optimization and improvement of the mechanical and biological properties of the so-called bioinks/biomaterial inks. One of the strategies proposed is the use of inorganic ingredients (clays, hydroxyapatite, graphene, carbon nanotubes and other silicate nanoparticles). Clays have proven to be useful as rheological and mechanical reinforcement in a wide range of fields, from the building industry to pharmacy. Moreover, they are naturally occurring materials with recognized biocompatibility and bioactivity, revealing them as optimal candidates for this cutting-edge technology. This review deals with the use of clays (both natural and synthetic) for tissue engineering and regenerative medicine through 3D printing and bioprinting. Despite the limited number of studies, it is possible to conclude that clays play a fundamental role in the formulation and optimization of bioinks and biomaterial inks since they are able to improve their rheology and mechanical properties, thus improving printability and construct resistance. Additionally, they have also proven to be exceptionally functional ingredients (enhancing cellular proliferation, adhesion, differentiation and alignment), controlling biodegradation and carrying/releasing actives with tissue regeneration therapeutic activities.
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Affiliation(s)
- Fátima García-Villén
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
| | - Sandra Ruiz-Alonso
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
| | - Markel Lafuente-Merchan
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
| | - Idoia Gallego
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
| | - Myriam Sainz-Ramos
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
| | - Laura Saenz-del-Burgo
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
| | - Jose Luis Pedraz
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, 01006 Vitoria-Gasteiz, Spain; (S.R.-A.); (M.L.-M.); (I.G.); (M.S.-R.); (L.S.-d.-B.)
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), 01006 Vitoria-Gasteiz, Spain
- Bioaraba, NanoBioCel Resarch Group, 01009 Vitoria-Gasteiz, Spain
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5
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Strachota B, Strachota A, Steinhart M, Šlouf M, Hodan J. Ultra‐extensible solvent‐free elastomers based on nanocomposite poly(2‐methoxyethylacrylate)/clay xerogels. J Appl Polym Sci 2021. [DOI: 10.1002/app.49836] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Beata Strachota
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Adam Strachota
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Miloš Steinhart
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Miroslav Šlouf
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
| | - Jiří Hodan
- Institute of Macromolecular Chemistry Czech Academy of Sciences Praha Czech Republic
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6
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Cao Q, Amini S, Kumru B, Schmidt BVKJ. Molding and Encoding Carbon Nitride-Containing Edible Oil Liquid Objects via Interfacial Toughening in Waterborne Systems. ACS APPLIED MATERIALS & INTERFACES 2021; 13:4643-4651. [PMID: 33463148 PMCID: PMC7877700 DOI: 10.1021/acsami.0c18064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Charge interaction-driven jamming of nanoparticle monolayers at the oil-water interface can be employed as a method to mold liquids into tailored stable 3D liquid objects. Here, 3D liquid objects are fabricated via a combination of biocompatible aqueous poly(vinyl sulfonic acid, sodium salt) solution and a colloidal dispersion of highly fluorescent organo-modified graphitic carbon nitride (g-C3N4) in edible sunflower oil. The as-formed liquid object shows stability in a broad pH range, as well as flexible pathways for efficient exchange of molecules at the liquid-liquid interphase, which allows for photodegradation of rhodamine B at the interface via visible light irradiation that also enables an encoding concept. The g-C3N4-based liquid objects point toward various applications, for example, all-liquid biphasic photocatalysis, artificial compartmentalized systems, liquid-liquid printing, or bioprinting.
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Affiliation(s)
- Qian Cao
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Shahrouz Amini
- Department
of Biomaterials, Max Planck Institute of
Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Baris Kumru
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Bernhard V. K. J. Schmidt
- Department
of Colloid Chemistry, Max Planck Institute
of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
- School
of Chemistry, University of Glasgow, Glasgow G128QQ, U.K.
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7
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Tomal W, Świergosz T, Pilch M, Kasprzyk W, Ortyl J. New horizons for carbon dots: quantum nano-photoinitiating catalysts for cationic photopolymerization and three-dimensional (3D) printing under visible light. Polym Chem 2021. [DOI: 10.1039/d1py00228g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Citric acid-based carbon dots (CDs) as nano-photoinitiating catalysts for 3D printing.
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Affiliation(s)
- Wiktoria Tomal
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Kraków
- Poland
| | - Tomasz Świergosz
- Department of Analytical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Kraków
- Poland
| | - Maciej Pilch
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Kraków
- Poland
| | - Wiktor Kasprzyk
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Kraków
- Poland
| | - Joanna Ortyl
- Department of Biotechnology and Physical Chemistry
- Faculty of Chemical Engineering and Technology
- Cracow University of Technology
- 31-155 Kraków
- Poland
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8
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Gaharwar AK, Cross LM, Peak CW, Gold K, Carrow JK, Brokesh A, Singh KA. 2D Nanoclay for Biomedical Applications: Regenerative Medicine, Therapeutic Delivery, and Additive Manufacturing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1900332. [PMID: 30941811 PMCID: PMC6546555 DOI: 10.1002/adma.201900332] [Citation(s) in RCA: 169] [Impact Index Per Article: 33.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/23/2019] [Indexed: 05/03/2023]
Abstract
Clay nanomaterials are an emerging class of 2D biomaterials of interest due to their atomically thin layered structure, charged characteristics, and well-defined composition. Synthetic nanoclays are plate-like polyions composed of simple or complex salts of silicic acids with a heterogeneous charge distribution and patchy interactions. Due to their biocompatible characteristics, unique shape, high surface-to-volume ratio, and charge, nanoclays are investigated for various biomedical applications. Here, a critical overview of the physical, chemical, and physiological interactions of nanoclay with biological moieties, including cells, proteins, and polymers, is provided. The state-of-the-art biomedical applications of 2D nanoclay in regenerative medicine, therapeutic delivery, and additive manufacturing are reviewed. In addition, recent developments that are shaping this emerging field are discussed and promising new research directions for 2D nanoclay-based biomaterials are identified.
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Affiliation(s)
- Akhilesh K Gaharwar
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
- Material Science and Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
- Center for Remote Health Technologies and Systems, Texas A&M University, College Station, TX, 77843, USA
| | - Lauren M Cross
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Charles W Peak
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Karli Gold
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - James K Carrow
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Anna Brokesh
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
| | - Kanwar Abhay Singh
- Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, TX, 77843, USA
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9
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Shi P, Kim YH, Mousa M, Sanchez RR, Oreffo ROC, Dawson JI. Self-Assembling Nanoclay Diffusion Gels for Bioactive Osteogenic Microenvironments. Adv Healthc Mater 2018; 7:e1800331. [PMID: 29911340 DOI: 10.1002/adhm.201800331] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 11/08/2022]
Abstract
Laponite nanoparticles have attracted attention in the tissue engineering field for their protein interactions, gel-forming properties, and, more recently, osteogenic bioactivity. Despite growing interest in the osteogenic properties of Laponite, the application of Laponite colloidal gels to host the osteogenic differentiation of responsive stem cell populations remains unexplored. Here, the potential to harness the gel-forming properties of Laponite to generate injectable bioactive microenvironments for osteogenesis is demonstrated. A diffusion/dialysis gelation method allows the rapid formation of stable transparent gels from injectable, thixotropic Laponite suspensions in physiological fluids. Upon contact with buffered saline or blood serum, nanoporous gel networks exhibiting, respectively, fivefold and tenfold increases in gel stiffness are formed due to the reorganization of nanoparticle interactions. Laponite diffusion gels are explored as osteogenic microenvironments for skeletal stem cell containing populations. Laponite films support cell adhesion, proliferation, and differentiation of human bone marrow stromal cells in 2D. Laponite gel encapsulation significantly enhances osteogenic protein expression compared with 3D pellet culture controls. In both 2D and 3D conditions, cell associated mineralization is strongly enhanced. This study demonstrates that Laponite diffusion gels offer considerable potential as biologically active and clinically relevant bone tissue engineering scaffolds.
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Affiliation(s)
- Pujiang Shi
- Bone and Joint Research Group; Centre for Human Development; Stem Cells and Regeneration; Institute of Developmental Sciences; University of Southampton; Southampton SO16 6YD UK
| | - Yang-Hee Kim
- Bone and Joint Research Group; Centre for Human Development; Stem Cells and Regeneration; Institute of Developmental Sciences; University of Southampton; Southampton SO16 6YD UK
| | - Mohamed Mousa
- Bone and Joint Research Group; Centre for Human Development; Stem Cells and Regeneration; Institute of Developmental Sciences; University of Southampton; Southampton SO16 6YD UK
| | - Roxanna Ramnarine Sanchez
- Bone and Joint Research Group; Centre for Human Development; Stem Cells and Regeneration; Institute of Developmental Sciences; University of Southampton; Southampton SO16 6YD UK
| | - Richard O. C. Oreffo
- Bone and Joint Research Group; Centre for Human Development; Stem Cells and Regeneration; Institute of Developmental Sciences; University of Southampton; Southampton SO16 6YD UK
| | - Jonathan I. Dawson
- Bone and Joint Research Group; Centre for Human Development; Stem Cells and Regeneration; Institute of Developmental Sciences; University of Southampton; Southampton SO16 6YD UK
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10
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Xu D, Gersappe D. Structure formation in nanocomposite hydrogels. SOFT MATTER 2017; 13:1853-1861. [PMID: 28177007 DOI: 10.1039/c6sm02543a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We use molecular dynamics simulations to study structure formation in physically associating nanocomposite hydrogels. Nanofillers were modeled as rigid bodies of disk-like shapes and physical crosslinks were simulated by introducing a short-range attraction between the nanofillers and polymer chain ends. The structure, dynamics and mechanics of these polymer gels were studied as a function of nanofiller volume fraction. We observe the formation of a percolated network in the hydrogels, with an ordered local structure but disordered globally, as we increase the filler fraction. This locally ordered structure was a result of the anisotropy of the disk-like fillers. The dynamics of polymers showed significant caging effects in the gel state. Stress autocorrelation and elongation results were analyzed as a function of nano-filler concentrations. Comparisons with nanofillers of different shapes showed that disk-like nanofillers are more effective in strengthening the hydrogels than spherical nanofillers.
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Affiliation(s)
- Di Xu
- Department of Material Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA.
| | - Dilip Gersappe
- Department of Material Science and Chemical Engineering, Stony Brook University, Stony Brook, NY 11794, USA.
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11
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Eslahi N, Abdorahim M, Simchi A. Smart Polymeric Hydrogels for Cartilage Tissue Engineering: A Review on the Chemistry and Biological Functions. Biomacromolecules 2016; 17:3441-3463. [PMID: 27775329 DOI: 10.1021/acs.biomac.6b01235] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Stimuli responsive hydrogels (SRHs) are attractive bioscaffolds for tissue engineering. The structural similarity of SRHs to the extracellular matrix (ECM) of many tissues offers great advantages for a minimally invasive tissue repair. Among various potential applications of SRHs, cartilage regeneration has attracted significant attention. The repair of cartilage damage is challenging in orthopedics owing to its low repair capacity. Recent advances include development of injectable hydrogels to minimize invasive surgery with nanostructured features and rapid stimuli-responsive characteristics. Nanostructured SRHs with more structural similarity to natural ECM up-regulate cell-material interactions for faster tissue repair and more controlled stimuli-response to environmental changes. This review highlights most recent advances in the development of nanostructured or smart hydrogels for cartilage tissue engineering. Different types of stimuli-responsive hydrogels are introduced and their fabrication processes through physicochemical procedures are reported. The applications and characteristics of natural and synthetic polymers used in SRHs are also reviewed with an outline on clinical considerations and challenges.
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Affiliation(s)
- Niloofar Eslahi
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University , P.O. Box 14515/775, Tehran, Iran
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12
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Xu D, Bhatnagar D, Gersappe D, Sokolov JC, Rafailovich MH, Lombardi J. Rheology of Poly(N-isopropylacrylamide)–Clay Nanocomposite Hydrogels. Macromolecules 2015. [DOI: 10.1021/ma502111p] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Di Xu
- Materials
Science and Engineering Department, Stony Brook University, Room
314 Old Engineering, Stony Brook, New York 11794-2275, United States
| | - Divya Bhatnagar
- Materials
Science and Engineering Department, Stony Brook University, Room
314 Old Engineering, Stony Brook, New York 11794-2275, United States
- N.J. Center of Biomaterials, 145 Bevier Road, Piscataway, New Jersey 08554, United States
| | - Dilip Gersappe
- Materials
Science and Engineering Department, Stony Brook University, Room
314 Old Engineering, Stony Brook, New York 11794-2275, United States
| | - Jonathan C. Sokolov
- Materials
Science and Engineering Department, Stony Brook University, Room
314 Old Engineering, Stony Brook, New York 11794-2275, United States
| | - Miriam H. Rafailovich
- Materials
Science and Engineering Department, Stony Brook University, Room
314 Old Engineering, Stony Brook, New York 11794-2275, United States
| | - Jack Lombardi
- Materials
Science and Engineering Department, Stony Brook University, Room
314 Old Engineering, Stony Brook, New York 11794-2275, United States
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Ruedinger F, Lavrentieva A, Blume C, Pepelanova I, Scheper T. Hydrogels for 3D mammalian cell culture: a starting guide for laboratory practice. Appl Microbiol Biotechnol 2014; 99:623-36. [DOI: 10.1007/s00253-014-6253-y] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 11/17/2014] [Accepted: 11/18/2014] [Indexed: 12/21/2022]
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Parikumar P, Haraguchi K, Ohbayashi A, Senthilkumar R, Abraham SJK. Successful transplantation of in vitro expanded human cadaver corneal endothelial precursor cells on to a cadaver bovine's eye using a nanocomposite gel sheet. Curr Eye Res 2013; 39:522-6. [PMID: 24144454 DOI: 10.3109/02713683.2013.838633] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE In vitro expansion of human corneal endothelial precursor (HCEP) cells has been reported via production of cell aggregated spheres. However, to translate this procedure in human patients warrants maintaining the position of the eyeballs facing down for 36 h, which is not feasible. In this study, we report a method using a nanocomposite (NC) gel sheet to accomplish the integration of HCEP cells to the endothelium of cadaver bovine's eyes. MATERIALS AND METHODS HCEP cells were isolated from the corneal endothelium of a cadaver human eye and then expanded using a thermoreversible gelation polymer (TGP) as reported earlier. For the study, three cadaver bovine eyes were used. The NC gel sheets were inserted into the bovine eyes', aligned and suture-fixed in position under the host endothelium. HCEP cells previously expanded in the TGP were harvested and injected using a 26-gauge syringe between the endothelium and the NC gel sheet. The eyes were left undisturbed for three hours following which the NC gel sheets were gently removed. The corneas were harvested and subjected to histopathological studies. RESULTS Histopathological studies showed that all the three corneas used for NC gel sheet implantation showed the presence of engrafted HCEP cells, seen as multi-layered cells over the native endothelium of the bovine cornea. Examination of the NC gel sheets used for implantation showed that only very few corneal endothelial cells remained on the sheets amounting to what could be considered negligible. CONCLUSION The use of the NC gel sheet makes HCEP cell transplantation feasible for human patients. Further in vitro basic studies followed by translational studies are necessary to bring this method for clinical application in appropriate indications.
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Dawson JI, Oreffo ROC. Clay: new opportunities for tissue regeneration and biomaterial design. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4069-4086. [PMID: 23722321 DOI: 10.1002/adma.201301034] [Citation(s) in RCA: 198] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/04/2013] [Indexed: 06/02/2023]
Abstract
Seminal recent studies that have shed new light on the remarkable properties of clay interactions suggest unexplored opportunities for biomaterial design and regenerative medicine. Here, recent conceptual and technological developments in the science of clay interactions with biomolecules, polymers, and cells are examined, focusing on the implications for tissue engineering and regenerative strategies. Pioneering studies demonstrating the utility of clay for drug-delivery and scaffold design are reviewed and areas for future research and development highlighted.
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Affiliation(s)
- Jonathan I Dawson
- Institute of Developmental Sciences University of Southampton Southampton, UK.
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Constitutive Modeling of the Mechanical Response of Nanocomposite Hydrogels for Tissue Engineering. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.proeng.2013.05.091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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