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Yang F, Li Y, Wang L, Che H, Zhang X, Jahr H, Wang L, Jiang D, Huang H, Wang J. Full-thickness osteochondral defect repair using a biodegradable bilayered scaffold of porous zinc and chondroitin sulfate hydrogel. Bioact Mater 2024; 32:400-414. [PMID: 37885916 PMCID: PMC10598503 DOI: 10.1016/j.bioactmat.2023.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/26/2023] [Accepted: 10/15/2023] [Indexed: 10/28/2023] Open
Abstract
The regeneration of osteochondral tissue necessitates the re-establishment of a gradient owing to the unique characteristics and healing potential of the chondral and osseous phases. As the self-healing capacity of hyaline cartilage is limited, timely mechanical support during neo-cartilage formation is crucial to achieving optimal repair efficacy. In this study, we devised a biodegradable bilayered scaffold, comprising chondroitin sulfate (CS) hydrogel to regenerate chondral tissue and a porous pure zinc (Zn) scaffold for regeneration of the underlying bone as mechanical support for the cartilage layer. The photocured CS hydrogel possessed a compressive strength of 82 kPa, while the porous pure Zn scaffold exhibited a yield strength of 11 MPa and a stiffness of 0.8 GPa. Such mechanical properties are similar to values reported for cancellous bone. In vitro biological experiments demonstrated that the bilayered scaffold displayed favorable cytocompatibility and promoted chondrogenic and osteogenic differentiation of bone marrow stem cells. Upon implantation, the scaffold facilitated the simultaneous regeneration of bone and cartilage tissue in a porcine model, resulting in (i) a smoother cartilage surface, (ii) more hyaline-like cartilage, and (iii) a superior integration into the adjacent host tissue. Our bilayered scaffold exhibits significant potential for clinical application in osteochondral regeneration.
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Affiliation(s)
- Fan Yang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Yageng Li
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Lei Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Haodong Che
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Xin Zhang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Holger Jahr
- Institute of Anatomy and Cell Biology, University Hospital RWTH Aachen, Aachen, 52074, Germany
- Institute of Structural Mechanics and Lightweight Design, RWTH Aachen University, 52062, Aachen, Germany
| | - Luning Wang
- Beijing Advanced Innovation Center for Materials Genome Engineering, State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
| | - Dong Jiang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Hongjie Huang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
| | - Jianquan Wang
- Department of Sports Medicine, Peking University Third Hospital, Institute of Sports Medicine of Peking University, Beijing Key Laboratory of Sports Injuries, Engineering Research Center of Sports Trauma Treatment Technology and Devices, Ministry of Education, Beijing, China
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2
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Liu J, Guo S, Jin Z, Zhao K. Adjuvanted quaternized chitosan composite aluminum nanoparticles-based vaccine formulation promotes immune responses in chickens. Vaccine 2023; 41:2982-2989. [PMID: 37032226 DOI: 10.1016/j.vaccine.2023.03.067] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/11/2023]
Abstract
Aluminum adjuvant is a typical adjuvant that can promote humoral immune response, but it lacks the ability to effectively induce cellular immune response. The water-soluble N-2-Hydroxypropyl trimethyl ammonium chloride chitosan nanoparticles (N-2-HACC NPs) can enhance humoral and cellular immune responses of vaccines. To enable aluminum adjuvant to induce cellular immunity, the composite nano adjuvant N-2-HACC-Al NPs were synthesized by the N-2-HACC and aluminum sulfate (Al2(SO4)3). The particle size and zeta potential of the N-2-HACC-Al NPs were 300.70 ± 24.90 nm and 32.28 ± 0.52 mV, respectively. The N-2-HACC-Al NPs have good thermal stability and biodegradability and lower cytotoxicity. In addition, to investigate the immunogenicity of the composite nano adjuvant, the combined inactivated vaccine against Newcastle disease (ND) and H9N2 avian influenza (AI) was prepared with the N-2-HACC-Al NPs as a vaccine adjuvant. The immune effect of the vaccine (N-2-HACC-Al/NDV-AIV) was evaluated by chicken in vivo immunization. The vaccine induced higher levels of serum IgG, IL-4, and IFN-γ than those of the commercial combined inactivated vaccine against ND and H9N2 AI. The levels of IFN-γ were more than twice those of the commercial vaccine at 7 days post the immunization. The N-2-HACC-Al NPs could be used as an efficient nano adjuvant to enhance the effectiveness of vaccine and have immense application potential.
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Affiliation(s)
- Jiali Liu
- College of Chemistry and Material Sciences, School of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150080, China
| | - Sihan Guo
- College of Chemistry and Material Sciences, School of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150080, China
| | - Zheng Jin
- College of Chemistry and Material Sciences, School of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150080, China; Institute of Nanobiomaterials and Immunology, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou 318000, China.
| | - Kai Zhao
- College of Chemistry and Material Sciences, School of Life Sciences, Heilongjiang University, Harbin, Heilongjiang 150080, China; Institute of Nanobiomaterials and Immunology, Zhejiang Provincial Key Laboratory of Plant Evolutionary Ecology and Conservation, School of Life Sciences, Taizhou University, Taizhou 318000, China.
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3
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Singh AK, Pramanik K. Fabrication and investigation of physicochemical and biological properties of
3D
printed sodium alginate‐chitosan blend polyelectrolyte complex scaffold for bone tissue engineering application. J Appl Polym Sci 2023. [DOI: 10.1002/app.53642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Amit Kumar Singh
- Center of Excellence in Tissue Engineering, Department of Biotechnology & Medical Engineering National Institute of Technology Rourkela Rourkela Odisha India
| | - Krishna Pramanik
- Center of Excellence in Tissue Engineering, Department of Biotechnology & Medical Engineering National Institute of Technology Rourkela Rourkela Odisha India
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4
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Yousefiasl S, Sharifi E, Salahinejad E, Makvandi P, Irani S. Bioactive 3D-Printed Chitosan-Based Scaffolds for Personalized Craniofacial Bone Tissue Engineering. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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5
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Fu JN, Wang X, Yang M, Chen YR, Zhang JY, Deng RH, Zhang ZN, Yu JK, Yuan FZ. Scaffold-Based Tissue Engineering Strategies for Osteochondral Repair. Front Bioeng Biotechnol 2022; 9:812383. [PMID: 35087809 PMCID: PMC8787149 DOI: 10.3389/fbioe.2021.812383] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 12/16/2021] [Indexed: 12/19/2022] Open
Abstract
Over centuries, several advances have been made in osteochondral (OC) tissue engineering to regenerate more biomimetic tissue. As an essential component of tissue engineering, scaffolds provide structural and functional support for cell growth and differentiation. Numerous scaffold types, such as porous, hydrogel, fibrous, microsphere, metal, composite and decellularized matrix, have been reported and evaluated for OC tissue regeneration in vitro and in vivo, with respective advantages and disadvantages. Unfortunately, due to the inherent complexity of organizational structure and the objective limitations of manufacturing technologies and biomaterials, we have not yet achieved stable and satisfactory effects of OC defects repair. In this review, we summarize the complicated gradients of natural OC tissue and then discuss various osteochondral tissue engineering strategies, focusing on scaffold design with abundant cell resources, material types, fabrication techniques and functional properties.
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Affiliation(s)
- Jiang-Nan Fu
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - Xing Wang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Meng Yang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - You-Rong Chen
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - Ji-Ying Zhang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - Rong-Hui Deng
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - Zi-Ning Zhang
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - Jia-Kuo Yu
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
| | - Fu-Zhen Yuan
- Department of Sports Medicine, Peking University Third Hospital, Beijing, China.,Institute of Sports Medicine of Peking University, Beijing, China
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Fourie J, Taute F, du Preez L, de Beer D. Novel chitosan-poly(vinyl acetate) biomaterial suitable for additive manufacturing and bone tissue engineering applications. J BIOACT COMPAT POL 2021. [DOI: 10.1177/08839115211043279] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chitosan, a biocompatible and biodegradable natural polymer, offers great promise as a biomaterial for tissue engineering applications. Chitosan scaffolds have previously been fabricated using additive manufacturing techniques, however, the use of crosslinkers, weak mechanical stability and structural resolution remain problematic. In this study Chitosan-PVAc biopolymer blends were prepared using a non-organic solvent that can prepare a three-dimensional printable biopolymer in less time than conventional methods. Prepared films were characterised using SEM, FTIR and thermogravimetric analysis. Additionally, the swelling properties, biodegradability and printability of the scaffolds were also studied. The fabricated films were biodegradable within a 3-week period and showed controllable swelling properties. Results indicated no toxicity and cells attached onto films. Additionally, hydrogels showed antibacterial activity against S. aureus, S. epidermidis and E.coli, which could potentially prevent implant related infections. Additive manufacturing simulation of PVAc composite 3% chitosan and PVAc composite 4% chitosan were able to produce a layered scaffold without using crosslinkers and therefore confirming printability. Cytocompabability were assessed using a resazurin assay and cell attachment. From these results, we concluded that the printable PVAc composite 3% chitosan and PVAc composite 4% chitosan biopolymer blends meet the requirements of a biomaterial and can potentially be used for biomedical implants.
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Affiliation(s)
- Jaundrie Fourie
- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- Department of Mechanical Engineering, North-West University, Potchefstroom, South Africa
| | - Francois Taute
- TheraLon, Potchefstroom, South Africa
- Central University of Technology, Free State, Bloemfontein, South Africa
| | - Louis du Preez
- African Amphibian Conservation Research Group, Unit for Environmental Sciences and Management, North-West University, Potchefstroom, South Africa
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
| | - Deon de Beer
- Central University of Technology, Free State, Bloemfontein, South Africa
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7
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Gonçalves AM, Moreira A, Weber A, Williams GR, Costa PF. Osteochondral Tissue Engineering: The Potential of Electrospinning and Additive Manufacturing. Pharmaceutics 2021; 13:983. [PMID: 34209671 PMCID: PMC8309012 DOI: 10.3390/pharmaceutics13070983] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 12/14/2022] Open
Abstract
The socioeconomic impact of osteochondral (OC) damage has been increasing steadily over time in the global population, and the promise of tissue engineering in generating biomimetic tissues replicating the physiological OC environment and architecture has been falling short of its projected potential. The most recent advances in OC tissue engineering are summarised in this work, with a focus on electrospun and 3D printed biomaterials combined with stem cells and biochemical stimuli, to identify what is causing this pitfall between the bench and the patients' bedside. Even though significant progress has been achieved in electrospinning, 3D-(bio)printing, and induced pluripotent stem cell (iPSC) technologies, it is still challenging to artificially emulate the OC interface and achieve complete regeneration of bone and cartilage tissues. Their intricate architecture and the need for tight spatiotemporal control of cellular and biochemical cues hinder the attainment of long-term functional integration of tissue-engineered constructs. Moreover, this complexity and the high variability in experimental conditions used in different studies undermine the scalability and reproducibility of prospective regenerative medicine solutions. It is clear that further development of standardised, integrative, and economically viable methods regarding scaffold production, cell selection, and additional biochemical and biomechanical stimulation is likely to be the key to accelerate the clinical translation and fill the gap in OC treatment.
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Affiliation(s)
| | - Anabela Moreira
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal; (A.M.G.); (A.M.)
| | - Achim Weber
- Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, Nobelstrasse 12, 70569 Stuttgart, Germany;
| | - Gareth R. Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK;
| | - Pedro F. Costa
- BIOFABICS, Rua Alfredo Allen 455, 4200-135 Porto, Portugal; (A.M.G.); (A.M.)
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8
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Liu L, Peng Z, Wang C, Wang C, Liu C, Zhu L, Tang C. Effect of synthetic oxygen-generating system on cell survival under hypoxic condition in vitro. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2021; 32:967-979. [PMID: 33482710 DOI: 10.1080/09205063.2021.1878806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/13/2021] [Indexed: 10/22/2022]
Abstract
A significant challenge in the tissue engineering of injured sites is the lack of vascularization in the engineered sites due to insufficient oxygen supply. A scaffolding system is required to support seeded cells as vascularization develops. In this study, we examined the effects of hypoxic conditions and oxygen release on cell survival in a synthetic system. We developed a three-dimensional system using CaO2/poly(lactic-co-glycolic acid) microspheres suspended in a hydrogel. The system material was evaluated using stem cells under hypoxic conditions alongside controls to evaluate its oxygen-generating potential over a period of 21 days. The hydrogel acted as a flexible carrier supporting cell attachment and growth, protecting microspheres, and prolonging oxygen release. The system generated oxygen and supported cell growth, which are together expected to promote stem cell survival and growth in the weeks following implantation.
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Affiliation(s)
- Liangle Liu
- Department of Spinal Surgery, Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Department of Spinal Surgery, Orthopaedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Ziyue Peng
- Department of Spinal Surgery, Orthopaedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chenjian Wang
- Department of Spinal Surgery, Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chengqiang Wang
- Department of Spinal Surgery, Orthopaedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chun Liu
- Department of Spinal Surgery, Orthopaedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Lixin Zhu
- Department of Spinal Surgery, Orthopaedic Medical Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Chengxuan Tang
- Department of Spinal Surgery, Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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9
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The development of natural polymer scaffold-based therapeutics for osteochondral repair. Biochem Soc Trans 2021; 48:1433-1445. [PMID: 32794551 DOI: 10.1042/bst20190938] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/21/2020] [Accepted: 07/24/2020] [Indexed: 02/07/2023]
Abstract
Due to the limited regenerative capacity of cartilage, untreated joint defects can advance to more extensive degenerative conditions such as osteoarthritis. While some biomaterial-based tissue-engineered scaffolds have shown promise in treating such defects, no scaffold has been widely accepted by clinicians to date. Multi-layered natural polymer scaffolds that mimic native osteochondral tissue and facilitate the regeneration of both articular cartilage (AC) and subchondral bone (SCB) in spatially distinct regions have recently entered clinical use, while the transient localized delivery of growth factors and even therapeutic genes has also been proposed to better regulate and promote new tissue formation. Furthermore, new manufacturing methods such as 3D bioprinting have made it possible to precisely tailor scaffold micro-architectures and/or to control the spatial deposition of cells in requisite layers of an implant. In this way, natural and synthetic polymers can be combined to yield bioactive, yet mechanically robust, cell-laden scaffolds suitable for the osteochondral environment. This mini-review discusses recent advances in scaffolds for osteochondral repair, with particular focus on the role of natural polymers in providing regenerative templates for treatment of both AC and SCB in articular joint defects.
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Souza PR, de Oliveira AC, Vilsinski BH, Kipper MJ, Martins AF. Polysaccharide-Based Materials Created by Physical Processes: From Preparation to Biomedical Applications. Pharmaceutics 2021; 13:621. [PMID: 33925380 PMCID: PMC8146878 DOI: 10.3390/pharmaceutics13050621] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 02/07/2023] Open
Abstract
Polysaccharide-based materials created by physical processes have received considerable attention for biomedical applications. These structures are often made by associating charged polyelectrolytes in aqueous solutions, avoiding toxic chemistries (crosslinking agents). We review the principal polysaccharides (glycosaminoglycans, marine polysaccharides, and derivatives) containing ionizable groups in their structures and cellulose (neutral polysaccharide). Physical materials with high stability in aqueous media can be developed depending on the selected strategy. We review strategies, including coacervation, ionotropic gelation, electrospinning, layer-by-layer coating, gelation of polymer blends, solvent evaporation, and freezing-thawing methods, that create polysaccharide-based assemblies via in situ (one-step) methods for biomedical applications. We focus on materials used for growth factor (GFs) delivery, scaffolds, antimicrobial coatings, and wound dressings.
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Affiliation(s)
- Paulo R. Souza
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
| | - Ariel C. de Oliveira
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
- Laboratory of Materials, Macromolecules and Composites, Federal University of Technology—Paraná (UTFPR), Apucarana 86812-460, PR, Brazil
| | - Bruno H. Vilsinski
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
| | - Matt J. Kipper
- Department of Chemical and Biological Engineering, Colorado State University (CSU), Fort Collins, CO 80523, USA
- School of Advanced Materials Discovery, Colorado State University (CSU), Fort Collins, CO 80523, USA
- School of Biomedical Engineering, Colorado State University (CSU), Fort Collins, CO 80523, USA
| | - Alessandro F. Martins
- Group of Polymeric Materials and Composites, Department of Chemistry, State University of Maringá (UEM), Maringá 87020-900, PR, Brazil; (P.R.S.); (A.C.d.O.); (B.H.V.)
- Laboratory of Materials, Macromolecules and Composites, Federal University of Technology—Paraná (UTFPR), Apucarana 86812-460, PR, Brazil
- Department of Chemical and Biological Engineering, Colorado State University (CSU), Fort Collins, CO 80523, USA
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Amann E, Amirall A, Franco AR, Poh PSP, Sola Dueñas FJ, Fuentes Estévez G, Leonor IB, Reis RL, Griensven M, Balmayor ER. A Graded, Porous Composite of Natural Biopolymers and Octacalcium Phosphate Guides Osteochondral Differentiation of Stem Cells. Adv Healthc Mater 2021; 10:e2001692. [PMID: 33448144 DOI: 10.1002/adhm.202001692] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/19/2020] [Indexed: 01/08/2023]
Abstract
Lesions involving the osteochondral unit are difficult to treat. Biomimetic scaffolds are previously shown as promising alternative. Such devices often lack multiple functional layers that mimic bone, cartilage, and the interface. In this study, multilayered scaffolds are developed based on the use of natural extracellular matrix (ECM)-like biopolymers. Particular attention is paid to obtain a complex matrix that mimics the native osteochondral transition. Porous, sponge-like chitosan-collagen-octacalcium phosphate (OCP) scaffolds are obtained. Collagen content increases while the amount of OCP particles decreases toward the cartilage layer. The scaffolds are bioactive as a mineral layer is deposited containing hydroxyapatite at the bony side. The scaffolds stimulate proliferation of human adipose-derived mesenchymal stem cells, but the degree of proliferation depends on the cell seeding density. The scaffolds give rise to a zone-specific gene expression. RUNX2, COL1A1, BGLAP, and SPP1 are upregulated in the bony layer of the scaffold. SOX9 is upregulated concomitant with COL2A1 expression in the cartilage zone. Mineralization in presence of the cells is prominent in the bone area with Ca and P steadily increasing over time. These results are encouraging for the fabrication of biomimetic scaffolds using ECM-like materials and featuring gradients that mimic native tissues and their interface.
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Affiliation(s)
- Elisabeth Amann
- Experimental Trauma Surgery Klinikum rechts der Isar Technical University of Munich Munich 81675 Germany
| | - Amisel Amirall
- Biomaterials Center University of Havana Havana 10 400 Cuba
| | - Albina R. Franco
- 3B's Research Group I3Bs‐Research Institute on Biomaterials Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark Barco Guimarães 4805‐017 Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga Guimarães Portugal
| | - Patrina S. P. Poh
- Experimental Trauma Surgery Klinikum rechts der Isar Technical University of Munich Munich 81675 Germany
- Julius Wolff Institute Charité—Universitätsmedizin Berlin 13353 Berlin Germany
| | | | | | - Isabel B. Leonor
- 3B's Research Group I3Bs‐Research Institute on Biomaterials Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark Barco Guimarães 4805‐017 Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga Guimarães Portugal
| | - Rui L. Reis
- 3B's Research Group I3Bs‐Research Institute on Biomaterials Biodegradables and Biomimetics University of Minho Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine Avepark Barco Guimarães 4805‐017 Portugal
- ICVS/3B's—PT Government Associate Laboratory Braga Guimarães Portugal
- The Discoveries Centre for Regenerative and Precision Medicine Headquarters at University of Minho Avepark Barco Guimarães 4805‐017 Portugal
| | - Martijn Griensven
- Experimental Trauma Surgery Klinikum rechts der Isar Technical University of Munich Munich 81675 Germany
- Department of Cell Biology‐Inspired Tissue Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
| | - Elizabeth R. Balmayor
- Experimental Trauma Surgery Klinikum rechts der Isar Technical University of Munich Munich 81675 Germany
- Department of Instructive Biomaterials Engineering MERLN Institute for Technology‐Inspired Regenerative Medicine Maastricht University Maastricht 6229 ER The Netherlands
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12
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Khorshidi S, Karkhaneh A. A hydrogel/particle composite with gradient in oxygen releasing microparticle for oxygenation of the cartilage-to-bone interface: Modeling and experimental viewpoints. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111522. [DOI: 10.1016/j.msec.2020.111522] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 07/23/2020] [Accepted: 09/13/2020] [Indexed: 12/12/2022]
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13
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Liu L, Wan J, Dai M, Ye X, Liu C, Tang C, Zhu L. Effects of oxygen generating scaffolds on cell survival and functional recovery following acute spinal cord injury in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2020; 31:115. [PMID: 33247423 DOI: 10.1007/s10856-020-06453-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 10/27/2020] [Indexed: 06/12/2023]
Abstract
Persistent local oxygen delivery is crucial to create a microenvironment for cell survival and nerve regeneration in acute spinal cord injury (SCI). This study aimed to fabricate calcium peroxide-based microspheres incorporated into a 3-D construct scaffold as a novel oxygen release therapy for SCI. The scaffolds were able to generate oxygen over the course of 21 days when incubated under hypoxic conditions. In vitro, GFP-labeled bone marrow-derived mesenchymal stem cells (MSCs) were planted into the scaffolds. We observed that scaffolds could enhance MSC survival under hypoxic conditions for more than 21 days. Oxygen generating scaffolds were transplanted into spinal cord injury sites of rats in vivo. Twelve weeks following transplantation, cavity areas in the injury/graft site were significantly reduced due to tissue regeneration. Additionally, the oxygen generating scaffolds improved revascularization as observed through vWF immunostaining. A striking feature was the occurrence of nerve fiber regeneration in the lesion sites, which eventually led to significant locomotion recovery. The present results indicate that the oxygen generating scaffolds have the property of sustained local oxygen release, thus facilitating regeneration in injured spinal cords.
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Affiliation(s)
- Liangle Liu
- Department of Spinal Surgery, Orthopaedic Medical Center,Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Junming Wan
- Tongde Hospital of Zhejiang Province, Hanzhou, 310002, China
| | - Minghai Dai
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Xiuzhi Ye
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China
| | - Chun Liu
- Department of Spinal Surgery, Orthopaedic Medical Center,Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China
| | - Chengxuan Tang
- Rui'an People's Hospital & the third Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325200, China.
| | - Lixin Zhu
- Department of Spinal Surgery, Orthopaedic Medical Center,Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, Guangdong, China.
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14
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Chitosan Composite Biomaterials for Bone Tissue Engineering—a Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2020. [DOI: 10.1007/s40883-020-00187-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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15
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Lowen JM, Leach JK. Functionally graded biomaterials for use as model systems and replacement tissues. ADVANCED FUNCTIONAL MATERIALS 2020; 30:1909089. [PMID: 33456431 PMCID: PMC7810245 DOI: 10.1002/adfm.201909089] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Indexed: 05/03/2023]
Abstract
The heterogeneity of native tissues requires complex materials to provide suitable substitutes for model systems and replacement tissues. Functionally graded materials have the potential to address this challenge by mimicking the gradients in heterogeneous tissues such as porosity, mineralization, and fiber alignment to influence strength, ductility, and cell signaling. Advancements in microfluidics, electrospinning, and 3D printing enable the creation of increasingly complex gradient materials that further our understanding of physiological gradients. The combination of these methods enables rapid prototyping of constructs with high spatial resolution. However, successful translation of these gradients requires both spatial and temporal presentation of cues to model the complexity of native tissues that few materials have demonstrated. This review highlights recent strategies to engineer functionally graded materials for the modeling and repair of heterogeneous tissues, together with a description of how cells interact with various gradients.
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Affiliation(s)
- Jeremy M. Lowen
- Department of Biomedical Engineering, University of California, Davis, CA, 95616
| | - J. Kent Leach
- Department of Biomedical Engineering, University of California, Davis, CA, 95616
- Department of Orthopaedic Surgery, UC Davis Health, Sacramento, CA 95817
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16
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Oh GW, Nguyen VT, Heo SY, Ko SC, Kim CS, Park WS, Choi IW, Jung WK. 3D PCL/fish collagen composite scaffolds incorporating osteogenic abalone protein hydrolysates for bone regeneration application: in vitro and in vivo studies. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 32:355-371. [PMID: 33063639 DOI: 10.1080/09205063.2020.1834908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Three-dimensional (3 D) printing is an effective technology that has shown considerable potential for use in tissue regeneration. Of the many materials that have been proposed for this purpose, poly (ε-caprolactone) (PCL) 3 D scaffolds have been received significant attention in the bone tissue engineering field due to its advantageous mechanical properties and biocompatibility. In this study, a novel method was developed for tissue-engineered bone that combines PCL 3 D scaffolds with fish collagen (Col) and the osteogenic abalone intestine gastro-intestinal digests (AIGIDs) from Haliotis discus hannai. And then, mouse mesenchymal stem cells (MSCs) were seeded onto the fabricated scaffolds. After in vitro culturing, the proliferation of the MSCs on the scaffolds, alkaline phosphatase (ALP) activity, and the amount of deposited calcium were investigated. The results indicated that the ALP activity and mineralization in PCL/AIGIDs/Col was higher than that of the other scaffolds. In an in vivo experiment, the two fabricated scaffolds were implanted in a rabbit tibia. PCL/AIGIDs/Col group exhibited strong osteoinduction capability in the rabbit tibia defect model. These stimulated biological responses in vitro and in vivo suggest that the PCL/AIGIDs/Col scaffold are promising material for use in tissue implants and bone regeneration.
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Affiliation(s)
- Gun-Woo Oh
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, Republic of Korea
| | - Van-Tinh Nguyen
- Department of Cancer Research, Vinmec Research Institute of Stem Cell and Gene Technology, Hanoi, Vietnam
| | - Seong-Yeong Heo
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, Republic of Korea
| | - Seok-Chun Ko
- Team of Marine Bio-Resources, National Marine Biodiversity Institute of Korea, Seochun, Chungcheongnam-do, Republic of Korea
| | - Chang Su Kim
- Department of Orthopedic Surgery, Kosin University Gospel Hospital, Busan, Republic of Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University, School of Medicine, Chuncheon, Gangwon, Republic of Korea
| | - Il-Whan Choi
- Department of Microbiology, Inje University College of Medicine, Busan, Republic of Korea
| | - Won-Kyo Jung
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan, Republic of Korea.,Department of Biomedical Engineering, and New-senior Healthcare Innovation Center (BK21 Plus), Pukyong National University, Busan, Republic of Korea
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17
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Karimi M, Mesgar AS, Mohammadi Z. Development of osteogenic chitosan/alginate scaffolds reinforced with silicocarnotite containing apatitic fibers. ACTA ACUST UNITED AC 2020; 15:055020. [PMID: 32438355 DOI: 10.1088/1748-605x/ab954f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Porous composite scaffolds of chitosan-alginate (CH-AL) reinforced by biphasic calcium phosphate fibers containing silicon (Si) were prepared using the freeze-drying method. The fibers were synthesized using a homogenous precipitation method with differing reaction times and were characterized by XRD, FTIR, SEM, and ICP-OES. Fibers produced with no Si incorporation using two different reaction times of 4 d and 8 d comprised two phases of hydroxyapatite (∼93-96 wt%) and β-tricalcium phosphate (β-TCP). No new phases were observed by adding 0.8 wt% of Si during 4 d of precipitation. However, the addition of Si to fibers synthesized within 8 d under reflux conditions produced biphasic fibers with 1.9 wt% Si which consisted of a new phase of silicocarnotite (∼94 wt%) associated with the β-TCP phase. The whisker-like fibers were 10-200 µm in length and 0.2-5 µm in width. The physicochemical, mechanical, and biological properties of composite scaffolds fabricated by adding different fiber contents and types were investigated. The scaffolds exhibited favorable microstructures with a high porosity (66-88%) and the interconnected pores varied in size between 40 and 250 µm. Scaffolds containing silicocarnotite showed a significant improvement in their mechanical properties and in vitro bioactivity (using SBF testing and characterization of the apatite layer by ATR-FTIR and SEM/EDS) as well as proliferation, mineralization and adhesion of MG63 cells, when evaluated by MTT assay, alkaline phosphatase, and SEM. Scaffolds reinforced with silicocarnotite fibers also exhibited better mechanical properties and water uptake, compared to ones containing incorporated fibers made of Si. Composite scaffolds reinforced by 50 wt% fibers precipitated after 8 d were superior in terms of their mechanical properties and achieved a compressive strength and modulus of 272 kPa and 4.9 MPa, respectively, which is 400% greater than CH-AL scaffolds. The results indicate that the addition of Si into biphasic fibers, leading to the formation of silicocarnotite, makes silicocarnotite a potential candidate for the bioactive reinforcement of composite scaffolds for bone tissue engineering.
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Affiliation(s)
- Mahsa Karimi
- Biomaterials Laboratory, Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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18
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Shelah O, Wertheimer S, Haj-Ali R, Lesman A. Coral-Derived Collagen Fibers for Engineering Aligned Tissues. Tissue Eng Part A 2020; 27:187-200. [PMID: 32524890 DOI: 10.1089/ten.tea.2020.0116] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
There is a growing need for biomaterial scaffolds that support engineering of soft tissue substitutes featuring structure and mechanical properties similar to those of the native tissue. This work introduces a new biomaterial system that is based on centimeter-long collagen fibers extracted from Sarcophyton soft corals, wrapped around frames to create aligned fiber arrays. The collagen arrays displayed hyperelastic and viscoelastic mechanical properties that resembled those of collagenous-rich tissues. Cytotoxicity tests demonstrated that the collagen arrays were nontoxic to fibroblast cells. In addition, fibroblast cells seeded on the collagen arrays demonstrated spreading and increased growth for up to 40 days, and their orientation followed that of the aligned fibers. The possibility to combine the collagen cellular arrays with poly(ethylene glycol) diacrylate (PEG-DA) hydrogel, to create integrated biocomposites, was also demonstrated. This study showed that coral collagen fibers in combination with a hydrogel can support biological tissue-like growth, with predefined orientation over a long period of time in culture. As such, it is an attractive scaffold for the construction of various engineered tissues to match their native oriented morphology.
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Affiliation(s)
- Ortal Shelah
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
| | - Shir Wertheimer
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
| | - Rami Haj-Ali
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
| | - Ayelet Lesman
- School of Mechanical Engineering, The Fleischman Faculty of Engineering, Tel-Aviv University, Israel
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19
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Shalchy F, Lovell C, Bhaskar A. Hierarchical porosity in additively manufactured bioengineering scaffolds: Fabrication & characterisation. J Mech Behav Biomed Mater 2020; 110:103968. [PMID: 32745973 DOI: 10.1016/j.jmbbm.2020.103968] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/24/2020] [Accepted: 06/30/2020] [Indexed: 10/23/2022]
Abstract
Biomedical scaffolds with a high degree of porosity are known to facilitate the growth of healthy functioning tissues. In this study, scaffolds with hierarchical porosity are manufactured and their mechanical and thermal properties are characterised. Multi-scale porosity is achieved in scaffolds fabricated by Fused Deposition Modelling (FDM) in a novel way. Random intrinsic porosity at micron length scale obtained from particulate leaching is combined with the structured extrinsic porosity at millimeter length scales afforded by controlling the spacing between the struts. Polylactic acid (PLA) is blended with Polyvinyl alcohol (PVA) and an inorganic sacrificial phase, sodium chloride (NaCl), to produce pores at length scales of up to two orders of magnitude smaller than the inter-filament voids within 3D printed lattices. The specific elastic modulus and specific strength are maximised by optimising the polymer blends. The porosity level and pore size distribution of the foamy filaments within lattices are quantified statistically. Compression tests are performed on the porous samples and the observed mechanical response is attributed to the microstructure and density. Simple cellular solid models that possess power law are used to explain the measured trends and the dependence is associated with various mechanisms of elastic deformation of the cell walls. The relationship between pore architecture, pore connectivity, the blend material composition, and mechanical response of produced foams is brought out. Foams obtained using the PLA:PVA:NaCl 42%-18%-40% material blends show relatively high specific elastic modulus, specific strength and strain at failure. A quadratic power law relating the Young's modulus with the relative density is experimentally obtained, which is consistent with theoretical models for open-cell foams. 3D printing with blends, followed by leaching, produces structures with cumulative intrinsic and extrinsic porosity as high as 80%, in addition to good mechanical integrity.
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Affiliation(s)
- Faezeh Shalchy
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK.
| | | | - Atul Bhaskar
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton, UK
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20
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Erol İ, Üstündağ Okur N, Orak D, Sipahi H, Aydın A, Özer Ö. Tazarotene-loaded in situ gels for potential management of psoriasis: biocompatibility, anti-inflammatory and analgesic effect. Pharm Dev Technol 2020; 25:909-918. [PMID: 32364036 DOI: 10.1080/10837450.2020.1765180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Psoriasis is a chronic autoinflammatory disorder characterized by patches of abnormal skin. For psoriasis management, the application of topical retinoids as Tazarotene is recommended. However, Tazarotene could induce skin irritation limiting its use. Herein, it is evaluated the possible usage of in situ gels for tazarotene skin delivery. The topical in situ gels were developed using thermosensitive poloxamers via cold method. They were examined for their appearance, sol-gel temperature, clarity, pH, viscosity, in vitro release, and stability. Their biocompatibility was evaluated by investigating their cytotoxicity and irritation inducing capacity. The possible anti-inflammatory and analgesic activities were determined by measuring the nitric oxide and prostaglandin E2 levels production in LPS-stimulated RAW264.7 murine macrophage cells. It was revealed that the in situ gels had no cytotoxic effect (∼95-100% cell viability) and nor irritation potential (∼97% cell viability), according to the in vitro EpiDerm™ reconstituted skin irritation test. Additionally, the 10% tazarotene-in situ gels showed possible analgesic activity since the production of prostaglandin E2 (PGE2) was decreased. In further, both concentrations of 5% and 10% tazarotene-in situ gels inhibited significantly the nitrite oxide production at 16% and 19%, respectively. Finally, the prepared in situ gels can act as a potential non-irritant alternative option for tazarotene topical skin delivery.
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Affiliation(s)
- İpek Erol
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ege University, Izmir, Turkey
| | - Neslihan Üstündağ Okur
- Faculty of Pharmacy, Department of Pharmaceutical Technology, University of Health Sciences, Istanbul, Turkey
| | - Duygu Orak
- Faculty of Pharmacy, Department of Toxicology, Yeditepe University, Istanbul, Turkey.,Faculty of Pharmacy, Drug, Cosmetic and Medical Device Research-Development and Analysis Laboratory, Yeditepe University, Istanbul, Turkey
| | - Hande Sipahi
- Faculty of Pharmacy, Department of Toxicology, Yeditepe University, Istanbul, Turkey
| | - Ahmet Aydın
- Faculty of Pharmacy, Department of Toxicology, Yeditepe University, Istanbul, Turkey
| | - Özgen Özer
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Ege University, Izmir, Turkey
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21
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Batista MP, Gonçalves VSS, Gaspar FB, Nogueira ID, Matias AA, Gurikov P. Novel alginate-chitosan aerogel fibres for potential wound healing applications. Int J Biol Macromol 2020; 156:773-782. [PMID: 32302631 DOI: 10.1016/j.ijbiomac.2020.04.089] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/30/2020] [Accepted: 04/12/2020] [Indexed: 12/31/2022]
Abstract
Aerogels produced from marine polymers, such as chitosan and alginate, are of interest for wound healing applications due to their attractive properties. These properties can be the aerogel's high porosity along with the antimicrobial activity of chitosan or the capacity to provide a moist environment of alginate. The aim of this work was to develop a new route towards hybrid alginate-chitosan aerogel fibres and to evaluate their potential for wound healing applications. The influence of chitosan molecular weight and its content on the fibres characteristics was evaluated. To produce the fibres, the formation of polyelectrolyte complex hydrogels of both polymers was performed by the emulsion-gelation method. Hydrogels were converted in alcogels through a solvent exchange followed by drying with supercritical CO2. Resulting aerogels were observed to be light-weight, fluffy mesoporous fibres with a specific surface area of 162-302 m2/g and specific pore volume of 1.41-2.49 cm3/g. Biocompatibility of the fibres was evaluated, and the result showed that they were non-cytotoxic. Bioactivity of the fibres regarding the ability to close a wound on an in vitro scale and antibacterial activity were also evaluated. Aerogel fibres presented percentages of recovered scratch area of about 75%, higher than the untreated control (~50%) and a clear antibacterial activity against Staphylococcus aureus and Klebsiella pneumoniae. The obtained results suggest that these alginate-chitosan aerogel fibres could be good candidates for wound healing applications.
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Affiliation(s)
- M P Batista
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, P-2825 Monte de Caparica, Portugal.
| | - V S S Gonçalves
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal
| | - F B Gaspar
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal; Instituto de Tecnologia Química e Biológica, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - I D Nogueira
- MicroLab-Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - A A Matias
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2781-901 Oeiras, Portugal
| | - P Gurikov
- Laboratory for Development and Modelling of Novel Nanoporous Materials, Hamburg University of Technology, Eißendorfer Str. 38, 21073 Hamburg, Germany
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22
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Comeau PA, Willett TL. Triethyleneglycol dimethacrylate addition improves the 3D-printability and construct properties of a GelMA-nHA composite system towards tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110937. [PMID: 32409083 DOI: 10.1016/j.msec.2020.110937] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 03/30/2020] [Accepted: 04/05/2020] [Indexed: 12/26/2022]
Abstract
In tissue engineering, there is a growing interest in the development of 3D printable bone tissue-inspired nanocomposites. However, most such nanocomposites have poor mechanical properties, owing to poor dispersion of the mineral phase (e.g. nano-hydroxyapatite, nHA) within the organic phase (e.g. methacrylated gelatin, GelMA) and low volume fractions of each phase. Triethyleneglycol dimethacrylate (TEGDMA) is commonly added to dental resin-based composites to improve the properties of the dental resin. Here, the effects of substituting a portion of the water phase in a GelMA-nHA composite with TEGDMA were evaluated. TEGDMA improved the dispersion of nHA within the highly-concentrated GelMA-based composite ink, as well as increased the ink's shear yield strength and reduced the critical energy for ink cure. As a result, the printability of the composite ink was greatly improved upon TEGDMA inclusion. Lastly, while the swelling of the cast composite in 37 °C water increased slightly, the mechanical properties (tensile strength, toughness, and stiffness) of the cast composite increased by at least an order of magnitude upon TEGDMA addition, and all composites demonstrated MSC cytocompatibility after 24 h. Overall, TEGDMA shows promise as an additive to tune properties of the GelMA-nHA system towards use in tissue engineering applications.
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Affiliation(s)
- P A Comeau
- 200 University Avenue West, Systems Design Engineering, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada
| | - T L Willett
- 200 University Avenue West, Systems Design Engineering, University of Waterloo, Waterloo N2L 3G1, Ontario, Canada.
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23
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Lan W, Xu M, Zhang X, Zhao L, Huang D, Wei X, Chen W. Biomimetic polyvinyl alcohol/type II collagen hydrogels for cartilage tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1179-1198. [PMID: 32207369 DOI: 10.1080/09205063.2020.1747184] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Type II collagen (Col-II) is one of the important organic components of the cartilage extracellular matrix (ECM). Such natural material is known for its good biocompatibility, but it could not provide a good supporting environment for seed cells due to its rapid degradation and poor strength. In the present work, different contents of Col-II were incorporated into porous polyvinyl alcohol (PVA) to fabricate porous PVA/Col-II composite hydrogels for cartilage tissue engineering. The results illustrate that, after incorporation of Col-II, the elasticity modulus of the composite hydrogels firstly increases, and then decreases (under moisture state). The elasticity modulus of PVA/Col-II (at the ratio of 1:1) hydrogels reaches 11 ± 1.7 KPa, about two-fold higher than pure PVA hydrogels (4.9 ± 0.6 KPa). Meanwhile, all hydrogels exhibit relatively high water content (> 95%) and porosity (> 75%). The degradation analysis indicates that Col-II incorporation induce a high degradation ratio of the composite hydrogels. Cell culture results show PVA/Col-II hydrogels have no negative effects on cells viability and proliferation. The PVA/Col-II hydrogels may possess a potential application in the field of articular cartilage tissue engineering and regeneration.
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Affiliation(s)
- Weiwei Lan
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China.,Shanxi Key Laboratory of Material Strength & Structural Impact, Institute of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Mengjie Xu
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Xiumei Zhang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Liqin Zhao
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Di Huang
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China.,Shanxi Key Laboratory of Material Strength & Structural Impact, Institute of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
| | - Xiaochun Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, PR China
| | - Weiyi Chen
- Department of Biomedical Engineering, Research Center for Nano-biomaterials & Regenerative Medicine, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China.,Shanxi Key Laboratory of Material Strength & Structural Impact, Institute of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, PR China
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24
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Fabrication and characterization of dextran/nanocrystalline β-tricalcium phosphate nanocomposite hydrogel scaffolds. Int J Biol Macromol 2020; 148:434-448. [PMID: 31953173 DOI: 10.1016/j.ijbiomac.2020.01.112] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Revised: 01/10/2020] [Accepted: 01/11/2020] [Indexed: 01/02/2023]
Abstract
Design of bioactive three-dimensional scaffolds to support bone tissue repair and regeneration become a key area of research in tissue engineering. Herein, porous hybrid hydrogels composed of dextran incorporated with nanocrystalline β-tricalcium phosphate (β-TCP) particles were tailor made as scaffolds for bone tissue engineering. β-TCP was successfully introduced within the dextran networks crosslinked through intermolecular ionic interactions and hydrogen bonding confirmed by FTIR spectroscopy. The effect of β-TCP content on equilibrium water uptake and swelling kinetics of composite hydrogels was investigated. It was found that the homogeneous distribution of β-TCP nanoparticles through the hydrogel matrix contributes to higher porosity and swelling capacity. In depth swelling measurements revealed that while in the early stage of swelling, water diffusion follows the Fick's law, for longer time swelling behavior of hydrogels undergo the second order kinetics. XRD measurements represented the formation of apatite layer on the surface of nanocomposite hydrogels after immersion in the SBF solution, which implies their bioactivity. Cell culture assays confirmed biocompatibility of the developed hybrid hydrogels in vitro. The obtained results converge to offer dextran/β-TCP nanocomposite hydrogels as promising scaffolds for bone regeneration applications.
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25
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Yang D, Xiao J, Wang B, Li L, Kong X, Liao J. The immune reaction and degradation fate of scaffold in cartilage/bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109927. [DOI: 10.1016/j.msec.2019.109927] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 06/17/2019] [Accepted: 06/26/2019] [Indexed: 01/05/2023]
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26
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Comparative study on complexes formed by chitosan and different polyanions: Potential of chitosan-pectin biomaterials as scaffolds in tissue engineering. Int J Biol Macromol 2019; 132:178-189. [DOI: 10.1016/j.ijbiomac.2019.03.187] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/13/2019] [Accepted: 03/25/2019] [Indexed: 12/13/2022]
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27
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Fabrication and characterization of novel bilayer scaffold from nanocellulose based aerogel for skin tissue engineering applications. Int J Biol Macromol 2019; 136:796-803. [PMID: 31226370 DOI: 10.1016/j.ijbiomac.2019.06.104] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/14/2019] [Accepted: 06/14/2019] [Indexed: 01/15/2023]
Abstract
The aim of this study was to fabricate a novel bilayer scaffold containing cellulose nanofiber/poly (vinyl) alcohol (CNF/PVA) to evaluate its potential use in skin tissue engineering. Here, the scaffolds were fabricated using a novel one-step freeze-drying technique with two different concentrations of the aforementioned polymers. FE-SEM analysis indicated that the fabricated scaffolds had interconnected pores with two defined pore size in each layer of the bilayer scaffolds that can recapitulate the two layers of the dermis and epidermis of the skin. Lower concentration of polymers causes higher porosity with larger pore size and increased water uptake and decreased mechanical strength. FTIR proved the presence of functional groups and strong hydrogen bonding between the molecules of CNF/PVA and the efficient crosslinking. The MTT assay showed that these nanofibrous scaffolds meet the requirement as a biocompatible material for skin repair. Here, for the first time, we fabricated bilayer scaffold using a novel one-step freeze-drying technique only by controlling the polymer concentration with spending less time and energy.
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28
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Lu Y, Li M, Long Z, Di Yang, Guo S, Li J, Liu D, Gao P, Chen G, Lu X, Lu J, Wang Z. Collagen/
β
-TCP composite as a bone-graft substitute for posterior spinal fusion in rabbit model: a comparison study. Biomed Mater 2019; 14:045009. [DOI: 10.1088/1748-605x/ab1caf] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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29
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Silicate-based bioceramic scaffolds for dual-lineage regeneration of osteochondral defect. Biomaterials 2019; 192:323-333. [DOI: 10.1016/j.biomaterials.2018.11.025] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 01/26/2023]
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30
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Lan W, Zhang X, Xu M, Zhao L, Huang D, Wei X, Chen W. Carbon nanotube reinforced polyvinyl alcohol/biphasic calcium phosphate scaffold for bone tissue engineering. RSC Adv 2019; 9:38998-39010. [PMID: 35540653 PMCID: PMC9075967 DOI: 10.1039/c9ra08569f] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 11/12/2019] [Indexed: 11/21/2022] Open
Abstract
In this paper, a well-developed porous carbon nanotube (CNT) reinforced polyvinyl alcohol/biphasic calcium phosphate (PVA/BCP) scaffold was fabricated by a freeze-thawing and freeze-drying method. The microstructure, mechanical properties and the composition of the scaffolds were characterized by field emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). The results illustrate that after the incorporation of CNTs, the compressive strength of the hydrogels (moisture state) reached 81 ± 6 kPa, presenting a significantly higher value than that of pure PVA/BCP hydrogels (48 ± 2 kPa). Meanwhile, CNT reinforced PVA/BCP scaffolds exhibited a porous structure and high interconnectivity (80 ± 0.6%). The degradation analysis indicated that the degradation ratio of scaffolds can be varied by changing the concentrations of BCP powders and CNTs. Cell culture results show that PVA/BCP/CNT porous scaffolds have no negative effects on the survival and proliferation of cells. These results strongly show that the composite scaffolds may possess a potential application in the field of bone tissue engineering and regeneration. In this paper, a well-developed porous carbon nanotube (CNT) reinforced polyvinyl alcohol/biphasic calcium phosphate (PVA/BCP) scaffold was fabricated by a freeze-thawing and freeze-drying method.![]()
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Affiliation(s)
- Weiwei Lan
- Department of Biomedical Engineering
- Research Center for Nano-Biomaterials & Regenerative Medicine
- College of Biomedical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
| | - Xiumei Zhang
- Department of Biomedical Engineering
- Research Center for Nano-Biomaterials & Regenerative Medicine
- College of Biomedical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
| | - Mengjie Xu
- Department of Biomedical Engineering
- Research Center for Nano-Biomaterials & Regenerative Medicine
- College of Biomedical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
| | - Liqin Zhao
- Department of Biomedical Engineering
- Research Center for Nano-Biomaterials & Regenerative Medicine
- College of Biomedical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
| | - Di Huang
- Department of Biomedical Engineering
- Research Center for Nano-Biomaterials & Regenerative Medicine
- College of Biomedical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
| | - Xiaochun Wei
- Department of Orthopaedics
- The Second Hospital of Shanxi Medical University
- Taiyuan 030001
- PR China
| | - Weiyi Chen
- Department of Biomedical Engineering
- Research Center for Nano-Biomaterials & Regenerative Medicine
- College of Biomedical Engineering
- Taiyuan University of Technology
- Taiyuan 030024
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31
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García MC, Manzo RH, Jimenez-Kairuz A. Polysaccharides-based multiparticulated interpolyelectrolyte complexes for controlled benznidazole release. Int J Pharm 2018; 545:366-377. [DOI: 10.1016/j.ijpharm.2018.05.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/24/2018] [Accepted: 05/06/2018] [Indexed: 01/26/2023]
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32
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Zhu W, Chuah YJ, Wang DA. Bioadhesives for internal medical applications: A review. Acta Biomater 2018; 74:1-16. [PMID: 29684627 DOI: 10.1016/j.actbio.2018.04.034] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 03/08/2018] [Accepted: 04/19/2018] [Indexed: 12/17/2022]
Abstract
Bioadhesives such as tissue adhesives, hemostatic agents, and tissue sealants have gained increasing popularity in different areas of clinical operations during the last three decades. Bioadhesives can be categorized into internal and external ones according to their application conditions. External bioadhesives are generally applied in topical medications such as wound closure and epidermal grafting. Internal bioadhesives are mainly used in intracorporal conditions with direct contact to internal environment including tissues, organs and body fluids, such as chronic organ leak repair and bleeding complication reduction. This review focuses on internal bioadhesives that, in contrast with external bioadhesives, emphasize much more on biocompatibility and adhesive ability to wet surfaces rather than on gluing time and intensity. The crosslinking mechanisms of present internal bioadhesives can be generally classified as follows: 1) chemical conjugation between reactive groups; 2) free radical polymerization by light or redox initiation; 3) biological or biochemical coupling with specificity; and 4) biomimetic adhesion inspired from natural phenomena. In this review, bioadhesive products of each class are summarized and discussed by comparing their designs, features, and applications as well as their prospects for future development. STATEMENT OF SIGNIFICANCE Despite the emergence of numerous novel bioadhesive formulations in recent years, thus far, the classification of internal and external bioadhesives has not been well defined and universally acknowledged. Many of the formulations have been proposed for treatment of several diseases even though they are not applicable for such conditions. This is because of the lack of a systematic standard or evaluation protocol during the development of a new adhesive product. In this review, the definition of internal and external bioadhesives is given for the first time, and with a focus on internal bioadhesives, the criteria of an ideal internal bioadhesive are adequately discussed; this is followed by the review of recently developed internal bioadhesives based on different gluing mechanisms.
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Affiliation(s)
- Wenzhen Zhu
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457, Singapore
| | - Yon Jin Chuah
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 637335, Singapore
| | - Dong-An Wang
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637457, Singapore.
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33
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Ye Y, Pang Y, Zhang Z, Wu C, Jin J, Su M, Pan J, Liu Y, Chen L, Jin K. Decellularized Periosteum-Covered Chitosan Globule Composite for Bone Regeneration in Rabbit Femur Condyle Bone Defects. Macromol Biosci 2018; 18:e1700424. [PMID: 29931763 DOI: 10.1002/mabi.201700424] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 05/17/2018] [Indexed: 12/24/2022]
Abstract
Critical-sized bone defects are incapable of self-healing and are commonly seen in clinical practice. The authors explore a new treatment for this, decellularized periosteum is applied to chitosan globules (chitosan-DP globules) as a hybrid material. The efficacy of chitosan-DP globules on rabbit femoral condyle bone defects is assessed with biocompatibility, biomechanics, and osteogenic efficiency measurements, and compared with the results of chitosan globules and empty control. No difference in cytotoxicity is observed among chitosan-DP globules, chitosan globules, and the empty control. Chitosan-DP globules possesse a better surface for cell adhesion than did chitosan globules. Chitosan-DP globules demonstrate superior efficiency for osteogenesis in the defect area compared to chitosan globules as per microcomputed tomography examination and push-out testing, with relatively minor histological differences. Both chitosan globule groups show more satisfactory results than those for the empty control. The results implicate chitosan-DP globules as a promising solution for bone defects.
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Affiliation(s)
- Yiheng Ye
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Wenzhou Medical University, Wenzhou, 325000, China
| | - Yichuan Pang
- Department of Oral and Maxillofacial Surgery, Affiliated Shanghai 9th People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200000, China
| | - Zeng Zhang
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Congcong Wu
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Jianfeng Jin
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Mingzhen Su
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Junle Pan
- First Academy of Clinical Medicine, Wenzhou Medical University, Wenzhou, 325000, China
| | - Yangbo Liu
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Wenzhou Medical University, Wenzhou, 325000, China
| | - Lei Chen
- Department of Orthopedics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China.,Wenzhou Medical University, Wenzhou, 325000, China
| | - Keke Jin
- Department of Pathophysiology, Wenzhou Medical University, Wenzhou, 325000, China
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Ren H, Cui Y, Li A, Qiu D. Bioactive glass sol as a dual function additive for chitosan-alginate hybrid scaffold. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2018.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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35
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Khorshidi S, Karkhaneh A. A review on gradient hydrogel/fiber scaffolds for osteochondral regeneration. J Tissue Eng Regen Med 2018; 12:e1974-e1990. [PMID: 29243352 DOI: 10.1002/term.2628] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Revised: 07/17/2017] [Accepted: 11/27/2017] [Indexed: 12/31/2022]
Abstract
Osteochondral tissue regeneration is a complicated field due to the distinct properties and healing potential of osseous and chondral phases. In a natural osteochondral region, the composition, mechanics, and structure vary smoothly from bony to cartilaginous phase. Therefore, a homogeneous scaffold cannot satisfy the complexity of the osteochondral matrix. In essence, a natural extracellular matrix is composed of fibrous proteins elongated into a gelatinous background. A hydrogel/fiber scaffold possessing gradient in both phases would be of the utmost interest to imitate tissue arrangement of a native osteochondral interface. However, there are limited research works that exploit hydrogel/fiber scaffolds for osteochondral restoration. In the present review, currently used fibrous or gelatinous scaffolds for osteochondral damages are discussed. Moreover, superiority of using gradient hydrogel/fiber composites for osteochondral regeneration and practical approaches to develop those scaffolds is debated.
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Affiliation(s)
- Sajedeh Khorshidi
- Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Akbar Karkhaneh
- Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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36
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Effect of Co-incubation with Mesenchymal Stromal Cells in Cultural Medium on Structure and Mechanical Properties of Polylactide-Based Scaffolds. BIONANOSCIENCE 2017. [DOI: 10.1007/s12668-017-0429-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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37
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Scaffaro R, Lopresti F, Sutera A, Botta L, Fontana RM, Gallo G. Plasma modified PLA electrospun membranes for actinorhodin production intensification in Streptomyces coelicolor immobilized-cell cultivations. Colloids Surf B Biointerfaces 2017; 157:233-241. [PMID: 28599184 DOI: 10.1016/j.colsurfb.2017.05.060] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 05/15/2017] [Accepted: 05/23/2017] [Indexed: 12/29/2022]
Abstract
Most of industrially relevant bioproducts are produced by submerged cultivations of actinomycetes. The immobilization of these Gram-positive filamentous bacteria on suitable porous supports may prevent mycelial cell-cell aggregation and pellet formation which usually negatively affect actinomycete submerged cultivations, thus, resulting in an improved biosynthetic capability. In this work, electrospun polylactic acid (PLA) membranes, subjected or not to O2-plasma treatment (PLA-plasma), were used as support for immobilized-cell submerged cultivations of Streptomyces coelicolor M145. This strain produces different bioactive compounds, including the blue-pigmented actinorhodin (ACT) and red-pigmented undecylprodigiosin (RED), and constitutes a model for the study of antibiotic-producing actinomycetes. Wet contact angles and X-ray photoelectron spectroscopy analysis confirmed the increased wettability of PLA-plasma due to the formation of polar functional groups such as carboxyl and hydroxyl moieties. Scanning electron microscope observations, carried out at different incubation times, revealed that S. coelicolor immobilized-cells created a dense "biofilm-like" mycelial network on both kinds of PLA membranes. Cultures of S. coelicolor immobilized-cells on PLA or PLA-plasma membranes produced higher biomass (between 1.5 and 2 fold) as well as higher levels of RED and ACT than planktonic cultures. In particular, cultures of immobilized-cells on PLA and PLA-plasma produced comparable levels of RED that were approximatively 4 and 5 fold higher than those produced by planktonic cultures, respectively. In contrast, levels of ACT produced by immobilized-cell cultures on PLA and PLA-plasma were different, being 5 and 10 fold higher than those of planktonic cultures, respectively. Therefore, this is study demonstrated the positive influence of PLA membrane on growth and secondary metabolite production in S. coelicolor and also revealed that O2-plasma treated PLA membranes specifically promoted higher ACT production than not treated membranes.
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Affiliation(s)
- Roberto Scaffaro
- University of Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Viale delle Scienze Ed. 6, RU INSTM, 90128 Palermo, Italy.
| | - Francesco Lopresti
- University of Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Viale delle Scienze Ed. 6, RU INSTM, 90128 Palermo, Italy
| | - Alberto Sutera
- University of Palermo, Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze Ed. 16, 90128 Palermo, Italy
| | - Luigi Botta
- University of Palermo, Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Viale delle Scienze Ed. 6, RU INSTM, 90128 Palermo, Italy
| | - Rosa Maria Fontana
- University of Palermo, Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze Ed. 16, 90128 Palermo, Italy
| | - Giuseppe Gallo
- University of Palermo, Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Viale delle Scienze Ed. 16, 90128 Palermo, Italy
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38
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Development of polymeric functionally graded scaffolds: a brief review. J Appl Biomater Funct Mater 2017; 15:e107-e121. [PMID: 28009418 DOI: 10.5301/jabfm.5000332] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2016] [Indexed: 12/20/2022] Open
Abstract
Over recent years, there has been a growing interest in multilayer scaffolds fabrication approaches. In fact, functionally graded scaffolds (FGSs) provide biological and mechanical functions potentially similar to those of native tissues. Based on the final application of the scaffold, there are different properties (physical, mechanical, biochemical, etc.) which need to gradually change in space. Therefore, a number of different technologies have been investigated, and often combined, to customize each region of the scaffolds as much as possible, aiming at achieving the best regenerative performance.In general, FGSs can be categorized as bilayered or multilayered, depending on the number of layers in the whole structure. In other cases, scaffolds are characterized by a continuous gradient of 1 or more specific properties that cannot be related to the presence of clearly distinguished layers. Since each traditional approach presents peculiar advantages and disadvantages, FGSs are good candidates to overcome the limitations of current treatment options. In contrast to the reviews reported in the literature, which usually focus on the application of FGS, this brief review provides an overview of the most common strategies adopted to prepare FGS.
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39
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Scaffaro R, Maio A, Lopresti F, Botta L. Nanocarbons in Electrospun Polymeric Nanomats for Tissue Engineering: A Review. Polymers (Basel) 2017; 9:E76. [PMID: 30970753 PMCID: PMC6432463 DOI: 10.3390/polym9020076] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/17/2017] [Indexed: 01/01/2023] Open
Abstract
Electrospinning is a versatile process technology, exploited for the production of fibers with varying diameters, ranging from nano- to micro-scale, particularly useful for a wide range of applications. Among these, tissue engineering is particularly relevant to this technology since electrospun fibers offer topological structure features similar to the native extracellular matrix, thus providing an excellent environment for the growth of cells and tissues. Recently, nanocarbons have been emerging as promising fillers for biopolymeric nanofibrous scaffolds. In fact, they offer interesting physicochemical properties due to their small size, large surface area, high electrical conductivity and ability to interface/interact with the cells/tissues. Nevertheless, their biocompatibility is currently under debate and strictly correlated to their surface characteristics, in terms of chemical composition, hydrophilicity and roughness. Among the several nanofibrous scaffolds prepared by electrospinning, biopolymer/nanocarbons systems exhibit huge potential applications, since they combine the features of the matrix with those determined by the nanocarbons, such as conductivity and improved bioactivity. Furthermore, combining nanocarbons and electrospinning allows designing structures with engineered patterns at both nano- and microscale level. This article presents a comprehensive review of various types of electrospun polymer-nanocarbon currently used for tissue engineering applications. Furthermore, the differences among graphene, carbon nanotubes, nanodiamonds and fullerenes and their effect on the ultimate properties of the polymer-based nanofibrous scaffolds is elucidated and critically reviewed.
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Affiliation(s)
- Roberto Scaffaro
- Department of Civil, Environmental, Aerospace, Materials Engineering, RU INSTM, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy.
| | - Andrea Maio
- Department of Civil, Environmental, Aerospace, Materials Engineering, RU INSTM, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy.
| | - Francesco Lopresti
- Department of Civil, Environmental, Aerospace, Materials Engineering, RU INSTM, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy.
| | - Luigi Botta
- Department of Civil, Environmental, Aerospace, Materials Engineering, RU INSTM, University of Palermo, Viale delle Scienze, Ed. 6, 90128 Palermo, Italy.
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40
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Scaffaro R, Lopresti F, Botta L, Maio A, Sutera F, Mistretta MC, La Mantia FP. A Facile and Eco-friendly Route to Fabricate Poly(Lactic Acid) Scaffolds with Graded Pore Size. J Vis Exp 2016. [PMID: 27805598 DOI: 10.3791/54595] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Over the recent years, functionally graded scaffolds (FGS) gaineda crucial role for manufacturing of devices for tissue engineering. The importance of this new field of biomaterials research is due to the necessity to develop implants capable of mimicking the complex functionality of the various tissues, including a continuous change from one structure or composition to another. In this latter context, one topic of main interest concerns the design of appropriate scaffolds for bone-cartilage interface tissue. In this study, three-layered scaffolds with graded pore size were achieved by melt mixing poly(lactic acid) (PLA), sodium chloride (NaCl) and polyethylene glycol (PEG). Pore size distributions were controlled by NaCl granulometry and PEG solvation. Scaffolds were characterized from a morphological and mechanical point of view. A correlation between the preparation method, the pore architecture and compressive mechanical behavior was found. The interface adhesion strength was quantitatively evaluated by using a custom-designed interfacial strength test. Furthermore, in order to imitate the human physiology, mechanical tests were also performed in phosphate buffered saline (PBS) solution at 37 °C. The method herein presented provides a high control of porosity, pore size distribution and mechanical performance, thus offering the possibility to fabricate three-layered scaffolds with tailored properties by following a simple and eco-friendly route.
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Affiliation(s)
- Roberto Scaffaro
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo;
| | - Francesco Lopresti
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo
| | - Luigi Botta
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo
| | - Andrea Maio
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo
| | - Fiorenza Sutera
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo
| | - Maria Chiara Mistretta
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo
| | - Francesco Paolo La Mantia
- Department of civil, environmental, aerospace, and materials engineering (DICAM), RU INSTM, University of Palermo
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Abstract
Strategies that seek to enhance musculoskeletal tissue regeneration and repair by modulating the biologic microenvironment at the site of injury have considerable therapeutic potential. Current and emerging biologic approaches include the use of growth factors, platelet-rich plasma, stem cell therapy, and scaffolds. The American Academy of Orthopaedic Surgeons hosted a research symposium in November 2015 to review the current state-of-the-art biologic treatments of articular cartilage, muscle, tendon, and bone injuries and identify knowledge gaps related to these emerging treatments. This review outlines the findings of the symposium and summarizes the consensus reached on how best to advance research on biologic treatment of orthopaedic injuries.
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42
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Altamura D, Pastore SG, Raucci MG, Siliqi D, De Pascalis F, Nacucchi M, Ambrosio L, Giannini C. Scanning Small- and Wide-Angle X-ray Scattering Microscopy Selectively Probes HA Content in Gelatin/Hydroxyapatite Scaffolds for Osteochondral Defect Repair. ACS APPLIED MATERIALS & INTERFACES 2016; 8:8728-8736. [PMID: 27020229 DOI: 10.1021/acsami.6b00557] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This study is aimed at investigating the structure of a scaffold made of bovine gelatin and hydroxyapatite for bone tissue engineering purposes. In particular, the detailed characterization of such a material has a great relevance because of its application in the healing process of the osteochondral defect that consists of a damage of cartilage and injury of the adjacent subchondral bone, significantly compromising millions of patient's quality of life. Two different techniques exploiting X-ray radiation, with table-top setups, are used: microtomography (micro-CT) and microdiffraction. Micro-CT characterizes the microstructure in the three dimensions at the micrometer scale spatial resolution, whereas microdiffraction provides combined structural/morphological information at the atomic and nanoscale, in two dimensional microscopy images with a hundred micrometer spatial resolution. The combination of these two techniques allowed an appropriate structural characterization for the purpose of validating the engineering approach used for the realization of the hydroxyapatite gradient across the scaffold, with properties close to the natural model.
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Affiliation(s)
- Davide Altamura
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
| | - Stella G Pastore
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
| | - Maria G Raucci
- Institute of Polymers, Composites, and Biomaterials (IPCB), National Research Council , Naples, Italy
| | - Dritan Siliqi
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
| | - Fabio De Pascalis
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Brindisi 72100, Italy
| | - Michele Nacucchi
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Brindisi 72100, Italy
| | - Luigi Ambrosio
- Institute of Polymers, Composites, and Biomaterials (IPCB), National Research Council , Naples, Italy
- Department of Chemical Sciences and Materials Technology (DSCTM), National Research Council , Rome 000133, Italy
| | - Cinzia Giannini
- Institute of Crystallography (IC), National Research Council , Bari 70125, Italy
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Algul D, Gokce A, Onal A, Servet E, Dogan Ekici AI, Yener FG. In vitrorelease andIn vivobiocompatibility studies of biomimetic multilayered alginate-chitosan/β-TCP scaffold for osteochondral tissue. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:431-40. [DOI: 10.1080/09205063.2016.1140501] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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44
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Scaffaro R, Lopresti F, Botta L, Rigogliuso S, Ghersi G. Preparation of three-layered porous PLA/PEG scaffold: relationship between morphology, mechanical behavior and cell permeability. J Mech Behav Biomed Mater 2016; 54:8-20. [DOI: 10.1016/j.jmbbm.2015.08.033] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Revised: 08/20/2015] [Accepted: 08/25/2015] [Indexed: 02/07/2023]
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