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Youn KI, Lee JW, Song Y, Lee SY, Song KH. Development of Cell Culture Platforms for Study of Trabecular Meshwork Cells and Glaucoma Development. Tissue Eng Regen Med 2024; 21:695-710. [PMID: 38642251 PMCID: PMC11187050 DOI: 10.1007/s13770-024-00640-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Various cell culture platforms that could display native environmental cue-mimicking stimuli were developed, and effects of environmental cues on cell behaviors were studied with the cell culture platforms. Likewise, various cell culture platforms mimicking native trabecular meshwork (TM) composed of juxtacanalicular, corneoscleral and uveal meshwork located in internal scleral sulcus were used to study effects of environmental cues and/or drug treatments on TM cells and glaucoma development. Glaucoma is a disease that could cause blindness, and cause of glaucoma is not clearly identified yet. It appears that aqueous humor (AH) outflow resistance increased by damages on pathway of AH outflow can elevate intraocular pressure (IOP). These overall possibly contribute to development of glaucoma. METHODS For the study of glaucoma, static and dynamic cell culture platforms were developed. Particularly, the dynamic platforms exploiting AH outflow-mimicking perfusion or increased IOP-mimicking increased pressure were used to study how perfusion or increased pressure could affect TM cells. Overall, potential mechanisms of glaucoma development, TM structures and compositions, TM cell culture platform types and researches on TM cells and glaucoma development with the platforms were described in this review. RESULTS AND CONCLUSION This will be useful to improve researches on TM cells and develop enhanced therapies targeting glaucoma.
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Affiliation(s)
- Kook In Youn
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Ji Woo Lee
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Youngjun Song
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea
| | - Sang Yeop Lee
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
- Department of Ophthalmology, Yongin Severance Hospital, Yonsei University College of Medicine, 363 Dongbaekjukjeon-daero, Giheung-gu, Yongin-si, Gyeonggi-do, 16995, Republic of Korea.
| | - Kwang Hoon Song
- Department of Nano-Bioengineering, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea.
- Research Center of Brain-Machine Interface, Incheon National University, 119, Academy-ro, Yeonsu-gu, Incheon, 22012, Republic of Korea.
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Wang Q, Gao C, Zhai H, Peng C, Yu X, Zheng X, Zhang H, Wang X, Yu L, Wang S, Ding J. Electrospun Scaffolds are Not Necessarily Always Made of Nanofibers as Demonstrated by Polymeric Heart Valves for Tissue Engineering. Adv Healthc Mater 2024; 13:e2303395. [PMID: 38554036 DOI: 10.1002/adhm.202303395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/09/2024] [Indexed: 04/01/2024]
Abstract
In the last 30 years, there are ≈60 000 publications about electrospun nanofibers, but it is still unclear whether nanoscale fibers are really necessary for electrospun tissue engineering scaffolds. The present report puts forward this argument and reveals that compared with electrospun nanofibers, microfibers with diameter of ≈3 µm (named as "oligo-micro fiber") are more appropriate for tissue engineering scaffolds owing to their better cell infiltration ability caused by larger pores with available nuclear deformation. To further increase pore sizes, electrospun poly(ε-caprolactone) (PCL) scaffolds are fabricated using latticed collectors with meshes. Fiber orientation leads to sufficient mechanical strength albeit increases porosity. The latticed scaffolds exhibit good biocompatibility and improve cell infiltration. Under aortic conditions in vitro, the performances of latticed scaffolds are satisfactory in terms of the acute systolic hemodynamic functionality, except for the higher regurgitation fraction caused by the enlarged pores. This hierarchical electrospun scaffold with sparse fibers in macropores and oligo-micro fibers in filaments provides new insights into the design of tissue engineering scaffolds, and tissue engineering may provide living heart valves with regenerative capabilities for patients with severe valve disease in the future.
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Affiliation(s)
- Qunsong Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Caiyun Gao
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Huajuan Zhai
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Chen Peng
- Institute for Biomechanics, Department of Aeronautics and Astronautics, Fudan University, Shanghai, 200433, China
| | - Xiaoye Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Xiaofan Zheng
- Institute for Biomechanics, Department of Aeronautics and Astronautics, Fudan University, Shanghai, 200433, China
| | - Hongjie Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Xin Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Lin Yu
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
| | - Shengzhang Wang
- Institute for Biomechanics, Department of Aeronautics and Astronautics, Fudan University, Shanghai, 200433, China
| | - Jiandong Ding
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, China
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Lee JW, Song KH. Fibrous hydrogels by electrospinning: Novel platforms for biomedical applications. J Tissue Eng 2023; 14:20417314231191881. [PMID: 37581121 PMCID: PMC10423451 DOI: 10.1177/20417314231191881] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/19/2023] [Indexed: 08/16/2023] Open
Abstract
Hydrogels, hydrophilic and biocompatible polymeric networks, have been used for numerous biomedical applications because they have exhibited abilities to mimic features of extracellular matrix (ECM). In particular, the hydrogels engineered with electrospinning techniques have shown great performances in biomedical applications. Electrospinning techniques are to generate polymeric micro/nanofibers that can mimic geometries of natural ECM by drawing micro/nanofibers from polymer precursors with electrical forces, followed by structural stabilization of them. By exploiting the electrospinning techniques, the fibrous hydrogels have been fabricated and utilized as 2D/3D cell culture platforms, implantable scaffolds, and wound dressings. In addition, some hydrogels that respond to external stimuli have been used to develop biosensors. For comprehensive understanding, this review covers electrospinning processes, hydrogel precursors used for electrospinning, characteristics of fibrous hydrogels and specific biomedical applications of electrospun fibrous hydrogels and highlight their potential to promote use in biomedical applications.
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Affiliation(s)
- Ji Woo Lee
- Department of Nano-Bioengineering, Incheon National University, Incheon, Republic of Korea
| | - Kwang Hoon Song
- Department of Nano-Bioengineering, Incheon National University, Incheon, Republic of Korea
- Research Center of Brain-Machine Interface, Incheon National University, Incheon, Republic of Korea
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4
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Iron-Based Magnetic Nanosystems for Diagnostic Imaging and Drug Delivery: Towards Transformative Biomedical Applications. Pharmaceutics 2022; 14:pharmaceutics14102093. [PMID: 36297529 PMCID: PMC9607318 DOI: 10.3390/pharmaceutics14102093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/07/2022] Open
Abstract
The advancement of biomedicine in a socioeconomically sustainable manner while achieving efficient patient-care is imperative to the health and well-being of society. Magnetic systems consisting of iron based nanosized components have gained prominence among researchers in a multitude of biomedical applications. This review focuses on recent trends in the areas of diagnostic imaging and drug delivery that have benefited from iron-incorporated nanosystems, especially in cancer treatment, diagnosis and wound care applications. Discussion on imaging will emphasise on developments in MRI technology and hyperthermia based diagnosis, while advanced material synthesis and targeted, triggered transport will be the focus for drug delivery. Insights onto the challenges in transforming these technologies into day-to-day applications will also be explored with perceptions onto potential for patient-centred healthcare.
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5
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Zhang Y, Zhang M, Cheng D, Xu S, Du C, Xie L, Zhao W. Applications of electrospun scaffolds with enlarged pores in tissue engineering. Biomater Sci 2022; 10:1423-1447. [DOI: 10.1039/d1bm01651b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite electrospinning has multiple advantages over other methods such as creating materials with superfine fiber diameter, high specific surface area, and good mechanical properties, the pore diameter of scaffolds prepared...
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Arampatzis AS, Kontogiannopoulos KN, Theodoridis K, Aggelidou E, Rat A, Willems A, Tsivintzelis I, Papageorgiou VP, Kritis A, Assimopoulou AN. Electrospun wound dressings containing bioactive natural products: physico-chemical characterization and biological assessment. Biomater Res 2021; 25:23. [PMID: 34271983 PMCID: PMC8284004 DOI: 10.1186/s40824-021-00223-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 06/21/2021] [Indexed: 01/01/2023] Open
Abstract
Background Current research on skin tissue engineering has been focusing on novel therapies for the effective management of chronic wounds. A critical aspect is to develop matrices that promote growth and uniform distribution of cells across the wound area, and at the same time offer protection, as well as deliver drugs that help wound healing and tissue regeneration. In this context, we aimed at developing electrospun scaffolds that could serve as carriers for the bioactive natural products alkannin and shikonin (A/S). Methods A series of polymeric nanofibers composed of cellulose acetate (CA) or poly(ε-caprolactone) (PCL) and varying ratios of a mixture of A/S derivatives, has been successfully fabricated and their physico-chemical and biological properties have been explored. Results Scanning electron microscopy revealed a uniform and bead-free morphology for CA scaffolds, while for PCL beads along the fibers were observed. The average diameters for all nanofibers ranged between 361 ± 47 and 487 ± 88 nm. During the assessment of physicochemical characteristics, CA fiber mats exhibited a more favored profile, while the assessment of the biological properties of the scaffolds showed that CA samples containing A/S mixture up to 1 wt.% achieved to facilitate attachment, survival and migration of Hs27 fibroblasts. With respect to the antimicrobial properties of the scaffolds, higher drug-loaded (1 and 5 wt.%) samples succeeded in inhibiting the growth of Staphylococcus epidermidis and S. aureus around the edges of the fiber mats. Finally, carrying out a structure-activity relationship study regarding the biological activities (fibroblast toxicity/proliferation and antibacterial activity) of pure A/S compounds – present in the A/S mixture – we concluded that A/S ester derivatives and the dimeric A/S augmented cell proliferation after 3 days, whereas shikonin proved to be toxic at 500 nM and 1 μM and alkannin only at 1 μM. Additionally, alkannin, shikonin and acetyl-shikonin showed more pronounced antibacterial properties than the other esters, the dimeric derivative and the A/S mixture itself. Conclusions Taken together, these findings indicate that embedding A/S derivatives into CA nanofibers might be an advantageous drug delivery system that could also serve as a potential candidate for biomedical applications in the field of skin tissue engineering. Supplementary Information The online version contains supplementary material available at 10.1186/s40824-021-00223-9.
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Affiliation(s)
- Athanasios S Arampatzis
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece.,Natural Products Research Center of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), 57001, Thessaloniki, Greece
| | - Konstantinos N Kontogiannopoulos
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece.,Natural Products Research Center of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), 57001, Thessaloniki, Greece
| | - Konstantinos Theodoridis
- Department of Physiology and Pharmacology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece.,cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece
| | - Eleni Aggelidou
- Department of Physiology and Pharmacology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece.,cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece
| | - Angélique Rat
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, 9000, Ghent, Belgium
| | - Anne Willems
- Laboratory of Microbiology, Department of Biochemistry and Microbiology, Faculty of Sciences, Ghent University, 9000, Ghent, Belgium
| | - Ioannis Tsivintzelis
- Physical Chemistry Laboratory, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece
| | - Vassilios P Papageorgiou
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece.,Natural Products Research Center of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), 57001, Thessaloniki, Greece
| | - Aristeidis Kritis
- Department of Physiology and Pharmacology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece.,cGMP Regenerative Medicine Facility, Department of Physiology and Pharmacology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece
| | - Andreana N Assimopoulou
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki (AUTh), 54124, Thessaloniki, Greece. .,Natural Products Research Center of Excellence (NatPro-AUTh), Center of Interdisciplinary Research and Innovation of Aristotle University of Thessaloniki (CIRI-AUTh), 57001, Thessaloniki, Greece.
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Redmond J, McCarthy H, Buchanan P, Levingstone TJ, Dunne NJ. Advances in biofabrication techniques for collagen-based 3D in vitro culture models for breast cancer research. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 122:111944. [PMID: 33641930 DOI: 10.1016/j.msec.2021.111944] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 01/26/2021] [Accepted: 01/29/2021] [Indexed: 12/19/2022]
Abstract
Collagen is the most abundant component of the extracellular matrix (ECM), therefore it represents an ideal biomaterial for the culture of a variety of cell types. Recently, collagen-based scaffolds have shown promise as 3D culture platforms for breast cancer-based research. Two-dimensional (2D) in vitro culture models, while useful for gaining preliminary insights, are ultimately flawed as they do not adequately replicate the tumour microenvironment. As a result, they do not facilitate proper 3D cell-cell/cell-matrix interactions and often an exaggerated response to therapeutic agents occurs. The ECM plays a crucial role in the development and spread of cancer. Alterations within the ECM have a significant impact on the pathogenesis of cancer, the initiation of metastasis and ultimate progression of the disease. 3D in vitro culture models that aim to replicate the tumour microenvironment have the potential to offer a new frontier for cancer research with cell growth, morphology and genetic properties that more closely match in vivo cancers. While initial 3D in vitro culture models used in breast cancer research consisted of simple hydrogel platforms, recent advances in biofabrication techniques, including freeze-drying, electrospinning and 3D bioprinting, have enabled the fabrication of biomimetic collagen-based platforms that more closely replicate the breast cancer ECM. This review highlights the current application of collagen-based scaffolds as 3D in vitro culture models for breast cancer research, specifically for adherence-based scaffolds (i.e. matrix-assisted). Finally, the future perspectives of 3D in vitro breast cancer models and their potential to lead to an improved understanding of breast cancer diagnosis and treatment are discussed.
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Affiliation(s)
- John Redmond
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Centre for Medical Engineering Research, Dublin City University, Dublin 9, Ireland
| | - Helen McCarthy
- School of Pharmacy, Queen's University, Belfast BT9 7BL, United Kingdom; School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
| | - Paul Buchanan
- School of Nursing and Human Science, Dublin City University, Dublin 9, Ireland; National Institute of Cellular Biotechnology, Dublin City University, Dublin 9, Ireland
| | - Tanya J Levingstone
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Centre for Medical Engineering Research, Dublin City University, Dublin 9, Ireland; Tissue Engineering Research Group, Department of Anatomy and Regenerative Medicine, Royal College of Surgeons in Ireland, Dublin 2, Ireland; Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
| | - Nicholas J Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Centre for Medical Engineering Research, Dublin City University, Dublin 9, Ireland; Advanced Manufacturing Research Centre (I-Form), School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; Advanced Processing Technology Research Centre, Dublin City University, Dublin 9, Ireland; Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland; Advanced Materials and Bioengineering Research Centre (AMBER), Trinity College Dublin, Dublin 2, Ireland; Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland.
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Abbasi N, Lee RSB, Ivanovski S, Love RM, Hamlet S. In vivo bone regeneration assessment of offset and gradient melt electrowritten (MEW) PCL scaffolds. Biomater Res 2020; 24:17. [PMID: 33014414 PMCID: PMC7529514 DOI: 10.1186/s40824-020-00196-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 09/21/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Biomaterial-based bone tissue engineering represents a promising solution to overcome reduced residual bone volume. It has been previously demonstrated that gradient and offset architectures of three-dimensional melt electrowritten poly-caprolactone (PCL) scaffolds could successfully direct osteoblast cells differentiation toward an osteogenic lineage, resulting in mineralization. The aim of this study was therefore to evaluate the in vivo osteoconductive capacity of PCL scaffolds with these different architectures. METHODS Five different calcium phosphate (CaP) coated melt electrowritten PCL pore sized scaffolds: 250 μm and 500 μm, 500 μm with 50% fibre offset (offset.50.50), tri layer gradient 250-500-750 μm (grad.250top) and 750-500-250 μm (grad.750top) were implanted into rodent critical-sized calvarial defects. Empty defects were used as a control. After 4 and 8 weeks of healing, the new bone was assessed by micro-computed tomography and immunohistochemistry. RESULTS Significantly more newly formed bone was shown in the grad.250top scaffold 8 weeks post-implantation. Histological investigation also showed that soft tissue was replaced with newly formed bone and fully covered the grad.250top scaffold. While, the bone healing did not happen completely in the 250 μm, offset.50.50 scaffolds and blank calvaria defects following 8 weeks of implantation. Immunohistochemical analysis showed the expression of osteogenic markers was present in all scaffold groups at both time points. The mineralization marker Osteocalcin was detected with the highest intensity in the grad.250top and 500 μm scaffolds. Moreover, the expression of the endothelial markers showed that robust angiogenesis was involved in the repair process. CONCLUSIONS These results suggest that the gradient pore size structure provides superior conditions for bone regeneration.
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Affiliation(s)
- Naghmeh Abbasi
- School of Dentistry and Oral Health, Griffith University, Gold Coast Campus, Southport, Queensland 4215 Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Southport, Queensland 4215 Australia
| | - Ryan S. B. Lee
- School of Dentistry and Oral Health, Griffith University, Gold Coast Campus, Southport, Queensland 4215 Australia
- School of Dentistry, University of Queensland, Herston Campus, Herston, Queensland 4006 Australia
| | - Saso Ivanovski
- School of Dentistry, University of Queensland, Herston Campus, Herston, Queensland 4006 Australia
| | - Robert M. Love
- School of Dentistry and Oral Health, Griffith University, Gold Coast Campus, Southport, Queensland 4215 Australia
| | - Stephen Hamlet
- School of Dentistry and Oral Health, Griffith University, Gold Coast Campus, Southport, Queensland 4215 Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, Southport, Queensland 4215 Australia
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Zonderland J, Rezzola S, Wieringa P, Moroni L. Fiber diameter, porosity and functional group gradients in electrospun scaffolds. Biomed Mater 2020; 15:045020. [DOI: 10.1088/1748-605x/ab7b3c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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10
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Atif R, Khaliq J, Combrinck M, Hassanin AH, Shehata N, Elnabawy E, Shyha I. Solution Blow Spinning of Polyvinylidene Fluoride Based Fibers for Energy Harvesting Applications: A Review. Polymers (Basel) 2020; 12:E1304. [PMID: 32517387 PMCID: PMC7362018 DOI: 10.3390/polym12061304] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/14/2020] [Accepted: 04/22/2020] [Indexed: 12/31/2022] Open
Abstract
Polyvinylidene fluoride (PVDF)-based piezoelectric materials (PEMs) have found extensive applications in energy harvesting which are being extended consistently to diverse fields requiring strenuous service conditions. Hence, there is a pressing need to mass produce PVDF-based PEMs with the highest possible energy harvesting ability under a given set of conditions. To achieve high yield and efficiency, solution blow spinning (SBS) technique is attracting a lot of interest due to its operational simplicity and high throughput. SBS is arguably still in its infancy when the objective is to mass produce high efficiency PVDF-based PEMs. Therefore, a deeper understanding of the critical parameters regarding design and processing of SBS is essential. The key objective of this review is to critically analyze the key aspects of SBS to produce high efficiency PVDF-based PEMs. As piezoelectric properties of neat PVDF are not intrinsically much significant, various additives are commonly incorporated to enhance its piezoelectricity. Therefore, PVDF-based copolymers and nanocomposites are also included in this review. We discuss both theoretical and experimental results regarding SBS process parameters such as solvents, dissolution methods, feed rate, viscosity, air pressure and velocity, and nozzle design. Morphological features and mechanical properties of PVDF-based nanofibers were also discussed and important applications have been presented. For completeness, key findings from electrospinning were also included. At the end, some insights are given to better direct the efforts in the field of PVDF-based PEMs using SBS technique.
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Affiliation(s)
- Rasheed Atif
- Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (J.K.); (M.C.); (I.S.)
| | - Jibran Khaliq
- Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (J.K.); (M.C.); (I.S.)
| | - Madeleine Combrinck
- Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (J.K.); (M.C.); (I.S.)
| | - Ahmed H. Hassanin
- Center of Smart Nanotechnology and Photonics (CSNP), Smart CI Research Center, Alexandria University, Alexandria 21544, Egypt; (A.H.H.); (N.S.); (E.E.)
- Department of Textile Engineering, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt
| | - Nader Shehata
- Center of Smart Nanotechnology and Photonics (CSNP), Smart CI Research Center, Alexandria University, Alexandria 21544, Egypt; (A.H.H.); (N.S.); (E.E.)
- Department of Engineering Mathematics and Physics, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt
- USTAR Bioinnovations Center, Faculty of Science, Utah State University, Logan, UT 84341, USA
- Kuwait College of Science and Technology (KCST), Doha District 13133, Kuwait
| | - Eman Elnabawy
- Center of Smart Nanotechnology and Photonics (CSNP), Smart CI Research Center, Alexandria University, Alexandria 21544, Egypt; (A.H.H.); (N.S.); (E.E.)
| | - Islam Shyha
- Department of Mechanical and Construction Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; (J.K.); (M.C.); (I.S.)
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Bongiovanni Abel S, Montini Ballarin F, Abraham GA. Combination of electrospinning with other techniques for the fabrication of 3D polymeric and composite nanofibrous scaffolds with improved cellular interactions. NANOTECHNOLOGY 2020; 31:172002. [PMID: 31931493 DOI: 10.1088/1361-6528/ab6ab4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The development of three-dimensional (3D) scaffolds with physical and chemical topological cues at the macro-, micro-, and nanometer scale is urgently needed for successful tissue engineering applications. 3D scaffolds can be manufactured by a wide variety of techniques. Electrospinning technology has emerged as a powerful manufacturing technique to produce non-woven nanofibrous scaffolds with very interesting features for tissue engineering products. However, electrospun scaffolds have some inherent limitations that compromise the regeneration of thick and complex tissues. By integrating electrospinning and other fabrication technologies, multifunctional 3D fibrous assemblies with micro/nanotopographical features can be created. The proper combination of techniques leads to materials with nano and macro-structure, allowing an improvement in the biological performance of tissue-engineered constructs. In this review, we focus on the most relevant strategies to produce electrospun polymer/composite scaffolds with 3D architecture. A detailed description of procedures involving physical and chemical agents to create structures with large pores and 3D fiber assemblies is introduced. Finally, characterization and biological assays including in vitro and in vivo studies of structures intended for the regeneration of functional tissues are briefly presented and discussed.
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Affiliation(s)
- Silvestre Bongiovanni Abel
- Research Institute for Materials Science and Technology, INTEMA (UNMdP-CONICET). Av. Colón 10850, B7606BWV, Mar del Plata, Argentina
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Yilmaz EN, Zeugolis DI. Electrospun Polymers in Cartilage Engineering-State of Play. Front Bioeng Biotechnol 2020; 8:77. [PMID: 32133352 PMCID: PMC7039817 DOI: 10.3389/fbioe.2020.00077] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/29/2020] [Indexed: 12/17/2022] Open
Abstract
Articular cartilage defects remain a clinical challenge. Articular cartilage defects progress to osteoarthritis, which negatively (e.g., remarkable pain, decreased mobility, distress) affects millions of people worldwide and is associated with excessive healthcare costs. Surgical procedures and cell-based therapies have failed to deliver a functional therapy. To this end, tissue engineering therapies provide a promise to deliver a functional cartilage substitute. Among the various scaffold fabrication technologies available, electrospinning is continuously gaining pace, as it can produce nano- to micro- fibrous scaffolds that imitate architectural features of native extracellular matrix supramolecular assemblies and can deliver variable cell populations and bioactive molecules. Herein, we comprehensively review advancements and shortfalls of various electrospun scaffolds in cartilage engineering.
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Affiliation(s)
- Elif Nur Yilmaz
- Regenerative, Modular & Developmental Engineering Laboratory, National University of Ireland Galway, Galway, Ireland.,Science Foundation Ireland, Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory, National University of Ireland Galway, Galway, Ireland.,Science Foundation Ireland, Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
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13
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Doostmohammadi M, Forootanfar H, Ramakrishna S. Regenerative medicine and drug delivery: Progress via electrospun biomaterials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110521. [PMID: 32228899 DOI: 10.1016/j.msec.2019.110521] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 12/01/2019] [Accepted: 12/02/2019] [Indexed: 02/07/2023]
Abstract
Worldwide research on electrospinning enabled it as a versatile technique for producing nanofibers with specified physio-chemical characteristics suitable for diverse biomedical applications. In the case of tissue engineering and regenerative medicine, the nanofiber scaffolds' characteristics are custom designed based on the cells and tissues specific needs. This fabrication technique is also innovated for the production of nanofibers with special micro-structure and secondary structure characteristics such as porous fibers, hollow structure, and core- sheath structure. This review attempts to critically and succinctly capture the vast number of developments reported in the literature over the past two decades. We then discuss their applications as scaffolds for induction of cells growth and differentiation or as architecture for being used as graft for tissue engineering. The special nanofibers designed for improving regeneration of several tissues including heart, bone, central nerve system, spinal cord, skin and ocular tissue are introduced. We also discuss the potential of the electrospinning in drug delivery applications, which is a critical factor for cell culture, tissue formation and wound healing applications.
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Affiliation(s)
- Mohsen Doostmohammadi
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Forootanfar
- Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran; Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
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14
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Sobreiro-Almeida R, Fonseca DR, Neves NM. Extracellular matrix electrospun membranes for mimicking natural renal filtration barriers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109866. [DOI: 10.1016/j.msec.2019.109866] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 06/04/2019] [Accepted: 06/04/2019] [Indexed: 01/06/2023]
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15
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Tandon B, Kamble P, Olsson RT, Blaker JJ, Cartmell SH. Fabrication and Characterisation of Stimuli Responsive Piezoelectric PVDF and Hydroxyapatite-Filled PVDF Fibrous Membranes. Molecules 2019; 24:E1903. [PMID: 31108899 PMCID: PMC6571942 DOI: 10.3390/molecules24101903] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 11/18/2022] Open
Abstract
Poly(vinylidene fluoride) has attracted interest from the biomaterials community owing to its stimuli responsive piezoelectric property and promising results for application in the field of tissue engineering. Here, solution blow spinning and electrospinning were employed to fabricate PVDF fibres and the variation in resultant fibre properties assessed. The proportion of piezoelectric β-phase in the solution blow spun fibres was higher than electrospun fibres. Fibre production rate was circa three times higher for solution blow spinning compared to electrospinning for the conditions explored. However, the solution blow spinning method resulted in higher fibre variability between fabricated batches. Fibrous membranes are capable of generating different cellular response depending on fibre diameter. For this reason, electrospun fibres with micron and sub-micron diameters were fabricated, along with successful inclusion of hydroxyapatite particles to fabricate stimuli responsive bioactive fibres.
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Affiliation(s)
- Biranche Tandon
- School of Materials, MSS Tower, The University of Manchester, Manchester M13 9PL, UK.
- Bio-Active Materials Group, School of Materials, MSS Tower, The University of Manchester, Manchester M13 9PL, UK.
| | - Prashant Kamble
- School of Materials, MSS Tower, The University of Manchester, Manchester M13 9PL, UK.
| | - Richard T Olsson
- Department of Fibre and Polymer Technology, School of Chemical Science and Engineering, KTH Royal Institute of Technology, Teknikringen 56, SE-10044 Stockholm, Sweden.
| | - Jonny J Blaker
- School of Materials, MSS Tower, The University of Manchester, Manchester M13 9PL, UK.
- Bio-Active Materials Group, School of Materials, MSS Tower, The University of Manchester, Manchester M13 9PL, UK.
| | - Sarah H Cartmell
- School of Materials, MSS Tower, The University of Manchester, Manchester M13 9PL, UK.
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16
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Tamayo-Ramos JA, Rumbo C, Caso F, Rinaldi A, Garroni S, Notargiacomo A, Romero-Santacreu L, Cuesta-López S. Analysis of Polycaprolactone Microfibers as Biofilm Carriers for Biotechnologically Relevant Bacteria. ACS APPLIED MATERIALS & INTERFACES 2018; 10:32773-32781. [PMID: 30168313 DOI: 10.1021/acsami.8b07245] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Polymeric electrospun fibers are becoming popular in microbial biotechnology because of their exceptional physicochemical characteristics, biodegradability, surface-to-volume ratio, and compatibility with biological systems, which give them a great potential as microbial supports to be used in production processes or environmental applications. In this work, we analyzed and compared the ability of Escherichia coli, Pseudomonas putida, Brevundimonas diminuta, and Sphingobium fuliginis to develop biofilms on different types of polycaprolactone (PCL) microfibers. These bacterial species are relevant in the production of biobased chemicals, enzymes, and proteins for therapeutic use and bioremediation. The obtained results demonstrated that all selected species were able to attach efficiently to the PCL microfibers. Also, the ability of pure cultures of S. fuliginis (former Flavobacterium sp. ATCC 27551, a very relevant strain in the bioremediation of organophosphorus compounds) to form dense biofilms was observed for the first time, opening the possibility of new applications for this microorganism. This material showed to have a high microbial loading capacity, regardless of the mesh density and fiber diameter. A comparative analysis between PCL and polylactic acid (PLA) electrospun microfibers indicated that both surfaces have a similar bacterial loading capacity, but the former material showed higher resistance to microbial degradation than PLA.
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Affiliation(s)
- Juan Antonio Tamayo-Ramos
- International Research Centre in Critical Raw Materials-ICCRAM , University of Burgos , Plaza Misael Banuelos s/n , 09001 Burgos , Spain
| | - Carlos Rumbo
- International Research Centre in Critical Raw Materials-ICCRAM , University of Burgos , Plaza Misael Banuelos s/n , 09001 Burgos , Spain
- Departamento de Química, Facultad de Ciencias , University of Burgos , Plaza Misael Bañuelos s/n , 09001 Burgos , Spain
| | - Federica Caso
- Nanofaber srl. , Via Anguillarese 301 , 00123 Rome , Italy
| | - Antonio Rinaldi
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) , Casaccia Research Centre , Via Anguillarese 301 , 00123 Rome , Italy
| | - Sebastiano Garroni
- International Research Centre in Critical Raw Materials-ICCRAM , University of Burgos , Plaza Misael Banuelos s/n , 09001 Burgos , Spain
| | - Andrea Notargiacomo
- Institute for Photonics and Nanotechnology , CNR , Via Cineto Romano 42 , 00156 Rome , Italy
| | - Lorena Romero-Santacreu
- International Research Centre in Critical Raw Materials-ICCRAM , University of Burgos , Plaza Misael Banuelos s/n , 09001 Burgos , Spain
- Advanced Materials, Nuclear Technology and Applied Bio/Nanotechnology, Consolidated Research Unit UIC-154 , University of Burgos , Hospital del Rey s/n , Burgos , 09001 , Castilla y León, Spain
| | - Santiago Cuesta-López
- International Research Centre in Critical Raw Materials-ICCRAM , University of Burgos , Plaza Misael Banuelos s/n , 09001 Burgos , Spain
- Advanced Materials, Nuclear Technology and Applied Bio/Nanotechnology, Consolidated Research Unit UIC-154 , University of Burgos , Hospital del Rey s/n , Burgos , 09001 , Castilla y León, Spain
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17
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Perera AS, Zhang S, Homer-Vanniasinkam S, Coppens MO, Edirisinghe M. Polymer-Magnetic Composite Fibers for Remote-Controlled Drug Release. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15524-15531. [PMID: 29648781 DOI: 10.1021/acsami.8b04774] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
An efficient method is reported, for the fabrication of composite microfibers that can be magnetically actuated and are biocompatible, targeting controlled drug release. Aqueous solutions of polyvinyl alcohol, incorporated with citric acid-coated Fe3O4 magnetic nanoparticles (MNPs), are subject to infusion gyration to generate 100-300 nm diameter composite fibers, with controllable MNP loading. The fibers are stable in polar solvents, such as ethanol, and do not show any leaching of MNPs for over 4 weeks. Using acetaminophen as an example, we demonstrate that this material is effective in immobilization and triggered release of drugs, which is achieved by a moving external magnetic field. The remote actuation ability, coupled with biocompatibility and lightweight property, renders enormous potential for these fibers to be used as a smart drug release agent.
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18
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Bowers DT, Olingy CE, Chhabra P, Langman L, Merrill PH, Linhart RS, Tanes ML, Lin D, Brayman KL, Botchwey EA. An engineered macroencapsulation membrane releasing FTY720 to precondition pancreatic islet transplantation. J Biomed Mater Res B Appl Biomater 2018; 106:555-568. [PMID: 28240814 PMCID: PMC5572559 DOI: 10.1002/jbm.b.33862] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 12/28/2016] [Accepted: 01/26/2017] [Indexed: 02/06/2023]
Abstract
Macroencapsulation is a powerful approach to increase the efficiency of extrahepatic pancreatic islet transplant. FTY720, a small molecule that activates signaling through sphingosine-1-phosphate receptors, is immunomodulatory and pro-angiogenic upon sustained delivery from biomaterials. While FTY720 (fingolimod, Gilenya) has been explored for organ transplantation, in the present work the effect of locally released FTY720 from novel nanofiber-based macroencapsulation membranes is explored for islet transplantation. We screened islet viability during culture with FTY720 and various biodegradable polymers. Islet viability is significantly reduced by the addition of high doses (≥500 ng/mL) of soluble FTY720. Among the polymers screened, islets have the highest viability when cultured with poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). Therefore, PHBV was blended with polycaprolactone (PCL) for mechanical stability and electrospun into nanofibers. Islets had no detectable function ex vivo following 5 days or 12 h of subcutaneous implantation within our engineered device. Subsequently, we explored a preconditioning scheme in which islets are transplanted 2 weeks after FTY720-loaded nanofibers are implanted. This allows FTY720 to orchestrate a local regenerative milieu while preventing premature transplantation into avascular sites that contain high concentrations of FTY720. These results provide a foundation and motivation for further investigation into the use of FTY720 in preconditioning sites for efficacious islet transplantation. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 555-568, 2018.
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Affiliation(s)
- Daniel T Bowers
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
| | - Claire E Olingy
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, 30332-0363
| | - Preeti Chhabra
- Department of Surgery, University of Virginia, Charlottesville, Virginia, 22903
| | - Linda Langman
- Department of Surgery, University of Virginia, Charlottesville, Virginia, 22903
| | - Parker H Merrill
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
| | - Ritu S Linhart
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
| | - Michael L Tanes
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
| | - Dan Lin
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
| | - Kenneth L Brayman
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
- Department of Surgery, University of Virginia, Charlottesville, Virginia, 22903
| | - Edward A Botchwey
- Department of Biomedical Engineering, University of Virginia, Charlottesville, Virginia, 22903
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia, 30332-0363
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19
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Alves da Silva M, Martins A, Costa-Pinto AR, Monteiro N, Faria S, Reis RL, Neves NM. Electrospun Nanofibrous Meshes Cultured With Wharton's Jelly Stem Cell: An Alternative for Cartilage Regeneration, Without the Need of Growth Factors. Biotechnol J 2017; 12. [PMID: 28902474 DOI: 10.1002/biot.201700073] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 08/28/2017] [Indexed: 12/24/2022]
Abstract
Many efforts are being directed worldwide to the treatment of OA-focal lesions. The majority of those efforts comprise either the refinement of surgical techniques or combinations of biomaterials with various autologous cells. Herein, we tested electrospun polycaprolactone (PCL) nanofibrous meshes for cartilage tissue engineering. For that, articular chondrocytes (hACs) isolated from human osteoarthritic joints and Wharton's Jelly Stem Cells (hWJSCs) are cultured on electrospun nanofiber meshes, without adding external growth factors. We observed higher glycosaminoglycans production and higher over-expression of cartilage-related genes from hWJSCs cultured with basal medium, when compared to hACs isolated from osteoarthritic joints. Moreover, the presence of sulfated proteoglycans and collagen type II is observed on both types of cell cultures. We believe that this effect is due to either the electrospun nanofibers topography or the intrinsic chondrogenic differentiation potential of hWJSCs. Therefore, we propose the electrospun nanofibrous scaffolds in combination with hWJSCs as a viable alternative to the commercial membranes used in autologous chondrogenic regeneration approaches.
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Affiliation(s)
- Marta Alves da Silva
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's Laboratório Associado PT Government Associate Laboratory, Portugal
| | - Albino Martins
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's Laboratório Associado PT Government Associate Laboratory, Portugal
| | - Ana R Costa-Pinto
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's Laboratório Associado PT Government Associate Laboratory, Portugal
| | - Nélson Monteiro
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's Laboratório Associado PT Government Associate Laboratory, Portugal
| | - Susana Faria
- Prof. S. Faria, Department of Mathematics for Science and Technology, Research CMAT, University of Minho, Guimaraes, Portugal
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's Laboratório Associado PT Government Associate Laboratory, Portugal
| | - Nuno M Neves
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Dept. of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, 4806-909 Taipas, Guimarães, Portugal
- ICVS/3B's Laboratório Associado PT Government Associate Laboratory, Portugal
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20
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Stachewicz U, Szewczyk PK, Kruk A, Barber AH, Czyrska-Filemonowicz A. Pore shape and size dependence on cell growth into electrospun fiber scaffolds for tissue engineering: 2D and 3D analyses using SEM and FIB-SEM tomography. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 95:397-408. [PMID: 30573264 DOI: 10.1016/j.msec.2017.08.076] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 11/20/2016] [Revised: 07/03/2017] [Accepted: 08/18/2017] [Indexed: 10/19/2022]
Abstract
Electrospun nanofibers have ability to boost cell proliferation in tissue engineered scaffolds as their structure remind cells extra cellular matrix of the native tissue. The complex architecture and network of nanofibrous scaffolds requires advanced characterization methods to understand interrelationship between cells and nanofibers. In our study, we used complementary 2D and 3D analyses of electrospun polylactide-co-glycolide acid (PLGA) scaffolds in two configurations: aligned and randomly oriented nanofibers. Sizes of pores and fibers, pores shapes and porosity, before and after cell culture, were verified by imaging with scanning electron microscopy (SEM) and combination of focus ion beam (FIB) and SEM to obtain 3D reconstructions of samples. Using FIB-SEM tomography for 3D reconstructions and 2D analyses, a unique set of data allowing understanding cell proliferation mechanism into the electrospun scaffolds, was delivered. Critically, the proliferation of cells into nanofibers network depends mainly on the pore shape and pores interconnections, which allow deep integration between cells and nanofibers. The proliferation of cells inside the network of fibers is much limited for aligned fibers comparing to randomly oriented fibers. For random fibers cells have easier way to integrate inside the scaffold as the circularity of pores and their sizes are larger than for aligned scaffolds. The complex architecture of electrospun scaffolds requires appropriate, for tissue engineering needs, cell seeding and culture methods, to maximize tissue growth in vitro environment.
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Affiliation(s)
- Urszula Stachewicz
- AGH University of Science and Technology, International Centre of Electron Microscopy for Materials Science and Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland; School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom.
| | - Piotr K Szewczyk
- AGH University of Science and Technology, International Centre of Electron Microscopy for Materials Science and Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
| | - Adam Kruk
- AGH University of Science and Technology, International Centre of Electron Microscopy for Materials Science and Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
| | - Asa H Barber
- School of Engineering, University of Portsmouth, Portsmouth PO1 3DJ, United Kingdom
| | - Aleksandra Czyrska-Filemonowicz
- AGH University of Science and Technology, International Centre of Electron Microscopy for Materials Science and Faculty of Metals Engineering and Industrial Computer Science, Al. A. Mickiewicza 30, 30-059 Kraków, Poland
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21
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O'Connor RA, McGuinness GB. Electrospun nanofibre bundles and yarns for tissue engineering applications: A review. Proc Inst Mech Eng H 2017; 230:987-998. [PMID: 28095765 DOI: 10.1177/0954411916656664] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Nanofibre membranes produced through the electrospinning process have been studied extensively over the past decade for a number of high demand applications including use as tissue engineered scaffolds. Despite possessing desirable properties including high surface area to volume ratios and enhanced mechanical properties, they ultimately suffer from a lack of cellular infiltration. Variations on the process include the production of highly aligned filaments of electrospun fibres referred to as bundles and yarns. Nanofibre bundle and yarn-based scaffolds have been shown to demonstrate superior cell infiltration rates compared to traditional electrospun nonwovens while also offering the capability to be incorporated into a wider array of post-processing technologies. In this review, fibre collection techniques currently employed within the literature for the fabrication of electrospun bundles and yarns along with their applications in the field of tissue engineering will be discussed.
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Affiliation(s)
- Richard A O'Connor
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, Ireland
| | - Garrett B McGuinness
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin, Ireland
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22
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Amariei N, Manea LR, Bertea AP, Cramariuc R, Bertea A, Cramariuc O. Electrospinning Polyaniline for Sensors. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1757-899x/209/1/012091] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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23
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Murphy AR, Laslett A, O'Brien CM, Cameron NR. Scaffolds for 3D in vitro culture of neural lineage cells. Acta Biomater 2017; 54:1-20. [PMID: 28259835 DOI: 10.1016/j.actbio.2017.02.046] [Citation(s) in RCA: 102] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 02/28/2017] [Accepted: 02/28/2017] [Indexed: 12/22/2022]
Abstract
Understanding how neurodegenerative disorders develop is not only a key challenge for researchers but also for the wider society, given the rapidly aging populations in developed countries. Advances in this field require new tools with which to recreate neural tissue in vitro and produce realistic disease models. This in turn requires robust and reliable systems for performing 3D in vitro culture of neural lineage cells. This review provides a state of the art update on three-dimensional culture systems for in vitro development of neural tissue, employing a wide range of scaffold types including hydrogels, solid porous polymers, fibrous materials and decellularised tissues as well as microfluidic devices and lab-on-a-chip systems. To provide some context with in vivo development of the central nervous system (CNS), we also provide a brief overview of the neural stem cell niche, neural development and neural differentiation in vitro. We conclude with a discussion of future directions for this exciting and important field of biomaterials research. STATEMENT OF SIGNIFICANCE Neurodegenerative diseases, including dementia, Parkinson's and Alzheimer's diseases and motor neuron diseases, are a major societal challenge for aging populations. Understanding these conditions and developing therapies against them will require the development of new physical models of healthy and diseased neural tissue. Cellular models resembling neural tissue can be cultured in the laboratory with the help of 3D scaffolds - materials that allow the organization of neural cells into tissue-like structures. This review presents recent work on the development of different types of scaffolds for the 3D culture of neural lineage cells and the generation of functioning neural-like tissue. These in vitro culture systems are enabling the development of new approaches for modelling and tackling diseases of the brain and CNS.
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Affiliation(s)
- Ashley R Murphy
- Department of Materials Science and Engineering, Monash University, 22 Alliance Lane, Clayton, VIC 3800, Australia
| | - Andrew Laslett
- CSIRO Manufacturing, Bag 10, Clayton South MDC, VIC 3168, Australia; Australian Regenerative Medicine Institute, Science, Technology, Research and Innovation Precinct (STRIP), Monash University, Clayton Campus, Wellington Road, Clayton, VIC 3800, Australia
| | - Carmel M O'Brien
- CSIRO Manufacturing, Bag 10, Clayton South MDC, VIC 3168, Australia; Australian Regenerative Medicine Institute, Science, Technology, Research and Innovation Precinct (STRIP), Monash University, Clayton Campus, Wellington Road, Clayton, VIC 3800, Australia
| | - Neil R Cameron
- Department of Materials Science and Engineering, Monash University, 22 Alliance Lane, Clayton, VIC 3800, Australia.
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24
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Buzgo M, Rampichova M, Vocetkova K, Sovkova V, Lukasova V, Doupnik M, Mickova A, Rustichelli F, Amler E. Emulsion centrifugal spinning for production of 3D drug releasing nanofibres with core/shell structure. RSC Adv 2017. [DOI: 10.1039/c6ra26606a] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Herein we describe the core/shell centrifugal spinning process to deliver susceptible bioactive molecules.
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Affiliation(s)
- Matej Buzgo
- Department of Biophysics
- 2nd Faculty of Medicine
- Charles University in Prague
- 150 06 Prague 5
- Czech Republic
| | - Michala Rampichova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- University Center of Energetically Efficient Buildings
| | - Karolina Vocetkova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
| | - Vera Sovkova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
| | - Vera Lukasova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
| | - Miroslav Doupnik
- University Center of Energetically Efficient Buildings
- Czech Technical University
- 273 43 Buštěhrad
- Czech Republic
| | - Andrea Mickova
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- University Center of Energetically Efficient Buildings
| | - Franco Rustichelli
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
| | - Evzen Amler
- Institute of Experimental Medicine
- Czech Academy of Sciences
- 142 20 Prague 4
- Czech Republic
- Department of Biophysics
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25
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Altobelli R, Guarino V, Ambrosio L. Micro- and nanocarriers by electrofludodynamic technologies for cell and molecular therapies. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.09.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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26
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Sathy BN, Mony U, Menon D, Baskaran VK, Mikos AG, Nair S. Bone Tissue Engineering with Multilayered Scaffolds-Part I: An Approach for Vascularizing Engineered Constructs In Vivo. Tissue Eng Part A 2016; 21:2480-94. [PMID: 26262757 DOI: 10.1089/ten.tea.2015.0098] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Obtaining functional capillaries through the bulk has been identified as a major challenge in tissue engineering, particularly for critical-sized defects. In the present study, a multilayered scaffold system was developed for bone tissue regeneration, designed for through-the-thickness vascularization of the construct. The basic principle of this approach was to alternately layer mesenchymal stem cell-seeded nanofibers (osteogenic layer) with microfibers or porous ceramics (osteoconductive layer), with an intercalating angiogenic zone between the two and with each individual layer in the microscale dimension (100-400 μm). Such a design can create a scaffold system potentially capable of spatially distributed vascularization in the overall bulk tissue. In the cellular approach, the angiogenic zone consisted of collagen/fibronectin gel with endothelial cells and pericytes, while in the acellular approach, cells were omitted from the zone without altering the gel composition. The cells incorporated into the construct were analyzed for viability, distribution, and organization of cells on the layers and vessel development in vitro. Furthermore, the layered constructs were implanted in the subcutaneous space of nude mice and the processes of vascularization and bone tissue regeneration were followed by histological and energy-dispersive X-ray spectroscopy (EDS) analysis. The results indicated that the microenvironment in the angiogenic zone, microscale size of the layers, and the continuously channeled architecture at the interface were adequate for infiltrating host vessels through the bulk and vascularizing the construct. Through-the-thickness vascularization and mineralization were accomplished in the construct, suggesting that a suitably bioengineered layered construct may be a useful design for regeneration of large bone defects.
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Affiliation(s)
- Binulal Nelson Sathy
- 1 Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi, India
| | - Ullas Mony
- 1 Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi, India
| | - Deepthy Menon
- 1 Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi, India
| | - V K Baskaran
- 2 Department of Orthopaedics, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi, India
| | - Antonios G Mikos
- 3 Department of Bioengineering, Rice University , Houston, Texas
| | - Shantikumar Nair
- 1 Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University , Kochi, India
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Rossi A, Wistlich L, Heffels KH, Walles H, Groll J. Isotropic Versus Bipolar Functionalized Biomimetic Artificial Basement Membranes and Their Evaluation in Long-Term Human Cell Co-Culture. Adv Healthc Mater 2016; 5:1939-48. [PMID: 27283510 DOI: 10.1002/adhm.201600224] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/21/2016] [Indexed: 01/19/2023]
Abstract
In addition to dividing tissues into compartments, basement membranes are crucial as cell substrates and to regulate cellular behavior. The development of artificial basement membranes is indispensable for the ultimate formation of functional engineered tissues; however, pose a challenge due to their complex structure. Herein, biodegradable electrospun polyester meshes are presented, exhibiting isotropic or bipolar bioactivation as a biomimetic and biofunctional model of the natural basement membrane. In a one-step preparation process, reactive star-shaped prepolymer additives, which generate a hydrophilic fiber surface, are electrospun with cell-adhesion-mediating peptides, derived from major components of the basement membrane. Human skin cells adhere to the functionalized meshes, and long-term co-culture experiments confirm that the artificial basement membranes recapitulate and preserve tissue specific functions. Several layers of immortalized human keratinocytes grow on the membranes, differentiating toward the surface and expressing typical epithelial markers. Fibroblasts migrate into the reticular lamina mimicking part of the mesh. Both cells types begin to produce extracellular matrix proteins and to remodel the initial membrane. It is shown at the example of skin that the artificial basement membrane design provokes biomimetic responses of different cell types and can thus be used as basis for the future development of basement membrane containing tissues.
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Affiliation(s)
- Angela Rossi
- Chair for Tissue Engineering and Regenerative Medicine; University of Würzburg; Translational Center Würzburg “Regenerative Therapies in Oncology and Musculoskeletal Diseases”; Würzburg Branch of the Fraunhofer Institute for Interfacial Engineering and Biotechnology; Röntgenring 11 97070 Würzburg Germany
- Chair for Functional Materials in Medicine and Dentistry; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
| | - Laura Wistlich
- Chair for Functional Materials in Medicine and Dentistry; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
| | - Karl-Heinz Heffels
- Chair for Functional Materials in Medicine and Dentistry; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
| | - Heike Walles
- Chair for Tissue Engineering and Regenerative Medicine; University of Würzburg; Translational Center Würzburg “Regenerative Therapies in Oncology and Musculoskeletal Diseases”; Würzburg Branch of the Fraunhofer Institute for Interfacial Engineering and Biotechnology; Röntgenring 11 97070 Würzburg Germany
| | - Jürgen Groll
- Chair for Functional Materials in Medicine and Dentistry; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
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Chen H, Peng Y, Wu S, Tan LP. Electrospun 3D Fibrous Scaffolds for Chronic Wound Repair. MATERIALS 2016; 9:ma9040272. [PMID: 28773394 PMCID: PMC5502965 DOI: 10.3390/ma9040272] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 03/16/2016] [Accepted: 03/30/2016] [Indexed: 12/26/2022]
Abstract
Chronic wounds are difficult to heal spontaneously largely due to the corrupted extracellular matrix (ECM) where cell ingrowth is obstructed. Thus, the objective of this study was to develop a three-dimensional (3D) biodegradable scaffold mimicking native ECM to replace the missing or dysfunctional ECM, which may be an essential strategy for wound healing. The 3D fibrous scaffolds of poly(lactic acid-co-glycolic acid) (PLGA) were successfully fabricated by liquid-collecting electrospinning, with 5~20 µm interconnected pores. Surface modification with the native ECM component aims at providing biological recognition for cell growth. Human dermal fibroblasts (HDFs) successfully infiltrated into scaffolds at a depth of ~1400 µm after seven days of culturing, and showed significant progressive proliferation on scaffolds immobilized with collagen type I. In vivo models showed that chronic wounds treated with scaffolds had a faster healing rate. These results indicate that the 3D fibrous scaffolds may be a potential wound dressing for chronic wound repair.
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Affiliation(s)
- Huizhi Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
- Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
| | - Yan Peng
- School of Mechanical Engineering, Ngee Ann Polytechnic, 535 Clementi Road, Singapore 599489, Singapore.
| | - Shucheng Wu
- School of Mechanical Engineering, Ngee Ann Polytechnic, 535 Clementi Road, Singapore 599489, Singapore.
| | - Lay Poh Tan
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore.
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Repanas A, Andriopoulou S, Glasmacher B. The significance of electrospinning as a method to create fibrous scaffolds for biomedical engineering and drug delivery applications. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2015.12.007] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Potential of Electrospun Nanofibers for Biomedical and Dental Applications. MATERIALS 2016; 9:ma9020073. [PMID: 28787871 PMCID: PMC5456492 DOI: 10.3390/ma9020073] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 01/06/2016] [Accepted: 01/18/2016] [Indexed: 12/26/2022]
Abstract
Electrospinning is a versatile technique that has gained popularity for various biomedical applications in recent years. Electrospinning is being used for fabricating nanofibers for various biomedical and dental applications such as tooth regeneration, wound healing and prevention of dental caries. Electrospun materials have the benefits of unique properties for instance, high surface area to volume ratio, enhanced cellular interactions, protein absorption to facilitate binding sites for cell receptors. Extensive research has been conducted to explore the potential of electrospun nanofibers for repair and regeneration of various dental and oral tissues including dental pulp, dentin, periodontal tissues, oral mucosa and skeletal tissues. However, there are a few limitations of electrospinning hindering the progress of these materials to practical or clinical applications. In terms of biomaterials aspects, the better understanding of controlled fabrication, properties and functioning of electrospun materials is required to overcome the limitations. More in vivo studies are definitely required to evaluate the biocompatibility of electrospun scaffolds. Furthermore, mechanical properties of such scaffolds should be enhanced so that they resist mechanical stresses during tissue regeneration applications. The objective of this article is to review the current progress of electrospun nanofibers for biomedical and dental applications. In addition, various aspects of electrospun materials in relation to potential dental applications have been discussed.
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Pelipenko J, Kocbek P, Kristl J. Critical attributes of nanofibers: Preparation, drug loading, and tissue regeneration. Int J Pharm 2015; 484:57-74. [DOI: 10.1016/j.ijpharm.2015.02.043] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 02/16/2015] [Accepted: 02/16/2015] [Indexed: 12/13/2022]
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Khorshidi S, Solouk A, Mirzadeh H, Mazinani S, Lagaron JM, Sharifi S, Ramakrishna S. A review of key challenges of electrospun scaffolds for tissue-engineering applications. J Tissue Eng Regen Med 2015; 10:715-38. [DOI: 10.1002/term.1978] [Citation(s) in RCA: 323] [Impact Index Per Article: 35.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Revised: 09/09/2014] [Accepted: 11/10/2014] [Indexed: 12/26/2022]
Affiliation(s)
- Sajedeh Khorshidi
- Biomedical Engineering Faculty; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Atefeh Solouk
- Biomedical Engineering Faculty; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Hamid Mirzadeh
- Polymer Engineering Faculty; Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Saeedeh Mazinani
- Amirkabir Nanotechnology Research Institute (ANTRI); Amirkabir University of Technology (Tehran Polytechnic); Tehran Iran
| | - Jose M. Lagaron
- Novel Materials and Nanotechnology Group; IATA-CSIC; Avda Agustı'n Escardino 7 46980 Burjassot Spain
| | - Shahriar Sharifi
- Department of Biomaterials Science and Technology; University of Twente; Enschede The Netherlands
| | - Seeram Ramakrishna
- Nanoscience and Nanotechnology Initiative; National University of Singapore; Singapore
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Ahn S, Kim G. Cell-encapsulating alginate microsized beads using an air-assisted atomization process to obtain a cell-laden hybrid scaffold. J Mater Chem B 2015; 3:9132-9139. [DOI: 10.1039/c5tb01629k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, the atomization process to obtain homogeneous cell-laden microbeads was proposed, and they were sprayed simultaneously onto the surface of a PCL mesh structure in a layer-by-layer manner to obtain the cell-laden hybrid structure.
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Affiliation(s)
- Seunghyun Ahn
- Department of Biomechatronic Eng
- College of Biotechnology and Bioengineering
- Sungkyunkwan University (SKKU)
- Suwon
- South Korea
| | - GeunHyung Kim
- Department of Biomechatronic Eng
- College of Biotechnology and Bioengineering
- Sungkyunkwan University (SKKU)
- Suwon
- South Korea
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Pelipenko J, Kocbek P, Kristl J. Nanofiber diameter as a critical parameter affecting skin cell response. Eur J Pharm Sci 2014; 66:29-35. [PMID: 25301202 DOI: 10.1016/j.ejps.2014.09.022] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 08/28/2014] [Accepted: 09/28/2014] [Indexed: 10/24/2022]
Abstract
Electrospun polymer nanofibers have opened new opportunities in the rapidly evolving field of tissue engineering, particularly due to their topography and variability of available biomaterials. In order to better understand nanofiber influence on cell growth, the impact of their diameter was systematically examined. In this study homogenous, randomly oriented poly(vinyl alcohol) nanofibers with five different average diameters, ranging from 70nm to 1120nm, were produced, characterized and their impact on morphology, proliferation and mobility of keratinocytes and skin fibroblasts was evaluated. The results have shown that nanofiber diameter affects cell response and that this response is cell line specific. Nanofiber thickness affected size, morphology and actine organization of keratinocytes much more than fibroblasts. Specifically, the keratinocyte grown on nanofibers were more spherical and smaller compared to the control cells, while the fibroblasts were much less affect. They stayed almost unchanged and spread across growth surface. The cell proliferation determined based on their metabolic activity was the highest, when keratinocytes were grown on 305nm thick nanofibers, whereas proliferation of fibroblasts grown similar nanofibers was decreased. Finally, fibroblasts exerted higher mobility than keratinocytes. Both tested cell lines on nanofiber diameters of 300nm resulted in decreased cell mobility. These findings suggest that the control over nanofiber diameter offers promising possibility to better design the tissue scaffolds, since cells distinguish between differently sized nanofibers and respond accordingly.
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Affiliation(s)
- Jan Pelipenko
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Petra Kocbek
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Julijana Kristl
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia.
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Sundaramurthi D, Krishnan UM, Sethuraman S. Electrospun Nanofibers as Scaffolds for Skin Tissue Engineering. POLYM REV 2014. [DOI: 10.1080/15583724.2014.881374] [Citation(s) in RCA: 108] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Puppi D, Zhang X, Yang L, Chiellini F, Sun X, Chiellini E. Nano/microfibrous polymeric constructs loaded with bioactive agents and designed for tissue engineering applications: a review. J Biomed Mater Res B Appl Biomater 2014; 102:1562-79. [PMID: 24678016 DOI: 10.1002/jbm.b.33144] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 01/29/2014] [Accepted: 03/06/2014] [Indexed: 01/04/2023]
Abstract
Nano/microfibrous polymeric constructs present various inherent advantages, such as highly porous architecture and high surface to volume ratio, making them attractive for tissue engineering purposes. Electrospinning is the most preferred technique for the fabrication of polymeric nanofibrous assemblies that can mimic the physical functions of native extracellular matrix greatly favoring cells attachment and thus influencing their morphology and activities. Different approaches have been developed to apply polymeric microfiber fabrication techniques (e.g. wet-spinning) for the obtainment of scaffolds with a three-dimensional network of micropores suitable for effective cells migration. Progress in additive manufacturing technology has led to the development of complex scaffold's shapes and microfibrous structures with a high degree of automation, good accuracy and reproducibility. Various loading methods, such as direct blending, coaxial electrospinning and microparticles incorporation, are enabling to develop customized strategies for the biofunctionalization of nano/microfibrous scaffolds with a tailored kinetics of release of different bioactive agents, ranging from small molecules, such as antibiotics, to protein drugs, such as growth factors, and even cells. Recent activities on the combination of different processing techniques and loading methods for the obtainment of biofunctionalized polymeric constructs with a complex multiscale structure open new possibilities for the development of biomimetic scaffolds endowed with a hierarchical architecture and a sophisticated release kinetics of different bioactive agents. This review is aimed at summarizing current advances in technologies and methods for manufacturing nano/microfibrous polymeric constructs suitable as tissue engineering scaffolds, and for their combination with different bioactive agents to promote tissue regeneration and therapeutic effects.
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Affiliation(s)
- Dario Puppi
- Department of Chemistry and Industrial Chemistry, Laboratory of Bioactive Polymeric Materials for Biomedical and Environmental Applications (BIOlab), University of Pisa, 56010, San Piero a Grado (Pi), Italy
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Li H, Xu Y, Xu H, Chang J. Electrospun membranes: control of the structure and structure related applications in tissue regeneration and drug delivery. J Mater Chem B 2014; 2:5492-5510. [DOI: 10.1039/c4tb00913d] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Multilevel structures of electrospun membranes can be controlled and the designed structures can strongly affect cell behavior and drug delivery.
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Affiliation(s)
- Haiyan Li
- Med-X Research Institute
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai, China
| | - Yachen Xu
- Med-X Research Institute
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai, China
| | - He Xu
- Med-X Research Institute
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai, China
| | - Jiang Chang
- Med-X Research Institute
- School of Biomedical Engineering
- Shanghai Jiao Tong University
- Shanghai, China
- Shanghai Institute of Ceramics
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Jo S, Kang SM, Park SA, Kim WD, Kwak J, Lee H. Enhanced Adhesion of Preosteoblasts inside 3DPCL Scaffolds by Polydopamine Coating and Mineralization. Macromol Biosci 2013; 13:1389-95. [DOI: 10.1002/mabi.201300203] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 05/27/2013] [Indexed: 12/22/2022]
Affiliation(s)
- Sunae Jo
- Department of Chemistry; KAIST; Daejeon 305-701 South Korea
| | - Sung Min Kang
- Department of Marine Bio-materials & Aquaculture; Pukyong National University; Busan 608-737 South Korea
| | - Su A. Park
- Nature-Inspired Mechanical System Team, Nano Convergence and Manufacturing Systems Research Division; Korea Institute of Machinery and Materials; Daejeon 305-343 South Korea
| | - Wan Doo Kim
- Nature-Inspired Mechanical System Team, Nano Convergence and Manufacturing Systems Research Division; Korea Institute of Machinery and Materials; Daejeon 305-343 South Korea
| | - Juhyoun Kwak
- Department of Chemistry; KAIST; Daejeon 305-701 South Korea
| | - Haeshin Lee
- Department of Chemistry; KAIST; Daejeon 305-701 South Korea
- Graduate School of Nanoscience & Technology (WCU), KAIST; Daejeon 305-701 South Korea
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Buzgo M, Jakubova R, Mickova A, Rampichova M, Prosecka E, Kochova P, Lukas D, Amler E. Time-regulated drug delivery system based on coaxially incorporated platelet α-granules for biomedical use. Nanomedicine (Lond) 2013. [DOI: 10.2217/nnm.12.140] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Aim: Platelet derivatives serve as an efficient source of natural growth factors. In the current study, α-granules were incorporated into coaxial nanofibers. Materials & methods: A nanofiber scaffold containing α-granules was prepared by coaxial electrospinning. The biological potential of the nanofiber scaffold was evaluated in chondrocyte and mesenchymal stem cell cultivation studies. Additionally, the concentration of TGF-β1 was determined. Results: Microscopy studies showed that intact α-granules were incorporated into the coaxial nanofibers. The cultivation tests showed that the novel scaffold stimulated viability and extracellular matrix production of chondrocytes and mesenchymal stem cells. In addition, the concentration of growth factors necessary for the induction of cell proliferation significantly decreased. Conclusion: The system preserved α-granule bioactivity and stimulated cell viability and chondrogenic differentiation of mesenchymal stem cells. Core/shell nanofibers incorporating α-granules are a promising system for tissue engineering, particularly cartilage engineering. Original submitted 21 March 2012; Revised submitted 8 August 2012; Published online 2 December 2012
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Affiliation(s)
- Matej Buzgo
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic.
| | - Radka Jakubova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Andrea Mickova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Michala Rampichova
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Eva Prosecka
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
| | - Petra Kochova
- Department of Mechanics, Faculty of Applied Sciences, University of West Bohemia, Univerzitni 8, 30614 Pilsen, Czech Republic
| | - David Lukas
- Department of Nonwovens, Technical University of Liberec, Studentska 2, 461 17 Liberec, Czech Republic
| | - Evžen Amler
- Department of Biophysics, 2nd Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083, 142 20 Prague 4, Czech Republic
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Rim NG, Shin CS, Shin H. Current approaches to electrospun nanofibers for tissue engineering. Biomed Mater 2013; 8:014102. [DOI: 10.1088/1748-6041/8/1/014102] [Citation(s) in RCA: 184] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Rampichová M, Buzgo M, Chvojka J, Prosecká E, Kofroňová O, Amler E. Cell penetration to nanofibrous scaffolds: Forcespinning®, an alternative approach for fabricating 3D nanofibers. Cell Adh Migr 2013; 8:36-41. [PMID: 24429388 DOI: 10.4161/cam.27477] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Cell infiltration is a critical parameter for the successful development of 3D matrices for tissue engineering. Application of electrospun nanofibers in tissue engineering has recently attracted much attention. Notwithstanding several of their advantages, small pore size and small thickness of the electrospun layer limit their application for development of 3D scaffolds. Several methods for the pore size and/or electrospun layer thickness increase have been recently developed. Nevertheless, tissue engineering still needs emerging of either novel nanofiber-enriched composites or new techniques for 3D nanofiber fabrication. Forcespinning(®) seems to be a promising alternative. The potential of the Forcespinning(®) method is illustrated in preliminary experiment with mesenchymal stem cells.
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Affiliation(s)
- Michala Rampichová
- Laboratory of Tissue Engineering; Institute of Experimental Medicine; Academy of Science of the Czech Republic; Prague, Czech Republic; University Center for Energy Efficient Buildings (UCEEB); The Czech Technical University in Prague; Kladno, Czech Republic
| | - Matej Buzgo
- Laboratory of Tissue Engineering; Institute of Experimental Medicine; Academy of Science of the Czech Republic; Prague, Czech Republic; University Center for Energy Efficient Buildings (UCEEB); The Czech Technical University in Prague; Kladno, Czech Republic
| | - Jiří Chvojka
- Technical University of Liberec; Faculty of Textile Engineering; Department of Nonwoven Textiles; Liberec, Czech Republic; Technical University of Liberec; Institute for Nanomaterials; Advanced technologies and Innovation; Liberec, Czech Republic
| | - Eva Prosecká
- Laboratory of Tissue Engineering; Institute of Experimental Medicine; Academy of Science of the Czech Republic; Prague, Czech Republic
| | - Olga Kofroňová
- Laboratory of Molecular Structure Characterization; Institute of Microbiology; Academy of Sciences of the Czech Republic; Prague, Czech Republic
| | - Evžen Amler
- Laboratory of Tissue Engineering; Institute of Experimental Medicine; Academy of Science of the Czech Republic; Prague, Czech Republic; University Center for Energy Efficient Buildings (UCEEB); The Czech Technical University in Prague; Kladno, Czech Republic; Institute of Biophysics; 2nd Faculty of Medicine; Charles University in Prague; Prague, Czech Republic; Czech Technical University in Prague; Faculty of Biomedical Engineering; Kladno, Czech Republic
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Rampichová M, Chvojka J, Buzgo M, Prosecká E, Mikeš P, Vysloužilová L, Tvrdík D, Kochová P, Gregor T, Lukáš D, Amler E. Elastic three-dimensional poly (ε-caprolactone) nanofibre scaffold enhances migration, proliferation and osteogenic differentiation of mesenchymal stem cells. Cell Prolif 2012; 46:23-37. [PMID: 23216517 DOI: 10.1111/cpr.12001] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Accepted: 08/17/2012] [Indexed: 12/17/2022] Open
Abstract
OBJECTIVES We prepared 3D poly (ε-caprolactone) (PCL) nanofibre scaffolds and tested their use for seeding, proliferation, differentiation and migration of mesenchymal stem cell (MSCs). MATERIALS AND METHODS 3D nanofibres were prepared using a special collector for common electrospinning; simultaneously, a 2D PCL nanofibre layer was prepared using a classic plain collector. Both scaffolds were seeded with MSCs and biologically tested. MSC adhesion, migration, proliferation and osteogenic differentiation were investigated. RESULTS The 3D PCL scaffold was characterized by having better biomechanical properties, namely greater elasticity and resistance against stress and strain, thus this scaffold will be able to find broad applications in tissue engineering. Clearly, while nanofibre layers of the 2D scaffold prevented MSCs from migrating through the conformation, cells infiltrated freely through the 3D scaffold. MSC adhesion to the 3D nanofibre PCL layer was also statistically more common than to the 2D scaffold (P < 0.05), and proliferation and viability of MSCs 2 or 3 weeks post-seeding, were also greater on the 3D scaffold. In addition, the 3D PCL scaffold was also characterized by displaying enhanced MSC osteogenic differentiation. CONCLUSIONS We draw the conclusion that all positive effects observed using the 3D PCL nanofibre scaffold are related to the larger fibre surface area available to the cells. Thus, the proposed 3D structure of the nanofibre layer will find a wide array of applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- M Rampichová
- Laboratory of Tissue Engineering, Institute of Experimental Medicine, Academy of Science of the Czech Republic, Videnska 1083, 142 40, Prague, Czech Republic.
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Schofer MD, Tünnermann L, Kaiser H, Roessler PP, Theisen C, Heverhagen JT, Hering J, Voelker M, Agarwal S, Efe T, Fuchs-Winkelmann S, Paletta JRJ. Functionalisation of PLLA nanofiber scaffolds using a possible cooperative effect between collagen type I and BMP-2: impact on colonization and bone formation in vivo. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:2227-33. [PMID: 22718044 PMCID: PMC3431465 DOI: 10.1007/s10856-012-4697-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 05/27/2012] [Indexed: 06/01/2023]
Abstract
The reconstruction of large bone defects after injury or tumor resection often requires the use of bone substitution. Artificial scaffolds based on synthetic biomaterials can overcome disadvantages of autologous bone grafts, like limited availability and donor side morbidity. Among them, scaffolds based on nanofibers offer great advantages. They mimic the extracellular matrix, can be used as a carrier for growth factors and allow the differentiation of human mesenchymal stem cells. Differentiation is triggered by a series of signaling processes, including integrin and bone morphogenetic protein (BMP), which act in a cooperative manner. The aim of this study was to analyze whether these processes can be remodeled in artificial poly-(l)-lactide acid (PLLA) based nanofiber scaffolds in vivo. Electrospun matrices composed of PLLA-collagen type I or BMP-2 incorporated PLLA-collagen type I were implanted in calvarial critical size defects in rats. Cranial CT-scans were taken 4, 8 and 12 weeks after implantation. Specimens obtained after euthanasia were processed for histology and immunostainings on osteocalcin, BMP-2 and Smad5. After implantation the scaffolds were inhomogeneously colonized and cells were only present in wrinkle- or channel-like structures. Ossification was detected only in focal areas of the scaffold. This was independent of whether BMP-2 was incorporated in the scaffold. However, cells that migrated into the scaffold showed an increased ratio of osteocalcin and Smad5 positive cells compared to empty defects. Furthermore, in case of BMP-2 incorporated PLLA-collagen type I scaffolds, 4 weeks after implantation approximately 40 % of the cells stained positive for BMP-2 indicating an autocrine process of the ingrown cells. These findings indicate that a cooperative effect between BMP-2 and collagen type I can be transferred to PLLA nanofibers and furthermore, that this effect is active in vivo. However, this had no effect on bone formation. The reason for this seems to be an unbalanced colonization of the scaffolds with cells, due to insufficient pore size.
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Affiliation(s)
- Markus D. Schofer
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Lisa Tünnermann
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Hendric Kaiser
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Philip P. Roessler
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Christina Theisen
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Johannes T. Heverhagen
- Department of Radiology, University Hospital Marburg, Baldingerstraße, 35033 Marburg, Germany
| | - Jacqueline Hering
- Department of Radiology, University Hospital Marburg, Baldingerstraße, 35033 Marburg, Germany
| | - Maximilian Voelker
- Department of Radiology, University Hospital Marburg, Baldingerstraße, 35033 Marburg, Germany
| | - Seema Agarwal
- Department of Macromolecular Chemistry, Philipps-University Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Turgay Efe
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Susanne Fuchs-Winkelmann
- Department of Orthopedics and Rheumatology, University Hospital Marburg, Baldingerstraße, 35043 Marburg, Germany
| | - Jürgen R. J. Paletta
- Department of Orthopedics and Rheumatology, Philipps-University, Baldingerstraße, 35043 Marburg, Germany
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Zhang Z, Hu J, Ma PX. Nanofiber-based delivery of bioactive agents and stem cells to bone sites. Adv Drug Deliv Rev 2012; 64:1129-41. [PMID: 22579758 DOI: 10.1016/j.addr.2012.04.008] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Revised: 04/23/2012] [Accepted: 04/25/2012] [Indexed: 01/14/2023]
Abstract
Biodegradable nanofibers are important scaffolding materials for bone regeneration. In this paper, the basic concepts and recent advances of self-assembly, electrospinning and thermally induced phase separation techniques that are widely used to generate nanofibrous scaffolds are reviewed. In addition, surface functionalization and bioactive factor delivery within these nanofibrous scaffolds to enhance bone regeneration are also discussed. Moreover, recent progresses in applying these nanofiber-based scaffolds to deliver stem cells for bone regeneration are presented. Along with the significant advances, challenges and obstacles in the field as well as the future perspective are discussed.
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Mickova A, Buzgo M, Benada O, Rampichova M, Fisar Z, Filova E, Tesarova M, Lukas D, Amler E. Core/Shell Nanofibers with Embedded Liposomes as a Drug Delivery System. Biomacromolecules 2012; 13:952-62. [DOI: 10.1021/bm2018118] [Citation(s) in RCA: 178] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrea Mickova
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
| | - Matej Buzgo
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
| | - Oldrich Benada
- Laboratory of Molecular Structure
Characterization, Institute of Microbiology, Academy of Sciences of the Czech Republic, v.v.i., Vídeňská 1083, 142 20 Prague 4, Czech
Republic
| | - Michala Rampichova
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
| | - Zdenek Fisar
- Department
of Psychiatry, First Faculty of Medicine, Charles University in Prague, Czech Republic
| | - Eva Filova
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University, Sítná 3105,
272 01 Kladno, Czech Republic
| | - Martina Tesarova
- Laboratory of Electron Microscopy, Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, Branisovska
31, 37005 Ceske Budejovice, Czech Republic
| | - David Lukas
- Department of Nonwovens, Technical University of Liberec, Studentska
2, 461 17 Liberec, Czech Republic
| | - Evzen Amler
- Department of Biophysics, Second Faculty of Medicine, Charles University in Prague, V Úvalu 84, 150 06 Prague 5, Czech Republic
- Institute of Experimental
Medicine, Academy of Sciences of the Czech Republic, v.v.i, Vídeňská 1083,142
20 Prague 4, Czech Republic
- Faculty of Biomedical Engineering, Czech Technical University, Sítná 3105,
272 01 Kladno, Czech Republic
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Leung LH, Naguib H. Novel fabrication technique for three-dimensional micropatterned electrospun poly(DL-lactide-co-glycolide) acid. J Appl Polym Sci 2012. [DOI: 10.1002/app.36385] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Leung LH, Fan S, Naguib HE. Fabrication of 3D electrospun structures from poly(lactide-co
-glycolide acid)-nano-hydroxyapatite composites. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/polb.22396] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Recent progress in cartilage tissue engineering. Curr Opin Biotechnol 2011; 22:734-40. [DOI: 10.1016/j.copbio.2011.04.003] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Accepted: 04/01/2011] [Indexed: 11/21/2022]
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Synthetic/Biopolymer Nanofibrous Composites as Dynamic Tissue Engineering Scaffolds. ADVANCES IN POLYMER SCIENCE 2011. [DOI: 10.1007/12_2011_142] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Szentivanyi A, Chakradeo T, Zernetsch H, Glasmacher B. Electrospun cellular microenvironments: Understanding controlled release and scaffold structure. Adv Drug Deliv Rev 2011; 63:209-20. [PMID: 21145932 DOI: 10.1016/j.addr.2010.12.002] [Citation(s) in RCA: 177] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2010] [Revised: 11/12/2010] [Accepted: 12/01/2010] [Indexed: 12/11/2022]
Abstract
Electrospinning is a versatile technique in tissue engineering for the production of scaffolds. To guide tissue development, scaffolds must provide specific biochemical, structural and mechanical cues to cells and deliver them in a controlled fashion over time. Electrospun scaffold design thus includes aspects of both controlled release and structural cues. Controlled multicomponent and multiphasic drug delivery can be achieved by the careful application and combination of novel electrospinning techniques, i.e., emulsion and co-axial electrospinning. Drug distribution and polymer properties influence the resulting release kinetics. Pore size is far more relevant as a structural parameter than previously recognized. It enables cell proliferation and ingrowth, whereas fiber diameter predominantly influences cell fate. Both parameters can be exploited by combining multiple fiber types in the form of multifiber and multilayer scaffolds. Such scaffolds are required to reproduce more complex tissue structures.
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Affiliation(s)
- Andreas Szentivanyi
- Institute for Multiphase Processes, Gottfried Wilhelm Leibniz Universitaet, Callinstrasse 36, Hannover, Germany.
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