201
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Shimoda A, Chen Y, Akiyoshi K. Nanogel containing electrospun nanofibers as a platform for stable loading of proteins. RSC Adv 2016. [DOI: 10.1039/c6ra05997j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
We designed polysaccharide nanogel-containing nanofibers by electrospinning. This system have a great potential for protein delivery systems.
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Affiliation(s)
- Asako Shimoda
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
| | - Yong Chen
- Ecole Normale Supérieure
- 75005 Paris
- France
- Institute for Integrated Cell-Material Sciences
- Kyoto University
| | - Kazunari Akiyoshi
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto 615-8510
- Japan
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202
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Souzandeh H, Wang Y, Zhong WH. “Green” nano-filters: fine nanofibers of natural protein for high efficiency filtration of particulate pollutants and toxic gases. RSC Adv 2016. [DOI: 10.1039/c6ra24512a] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
By combining the significant properties of nanofibers and the multi-functionality of pure proteins, “green” multifunctional air-filters with high removal efficiency of particulates and toxic gases is achieved.
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Affiliation(s)
- Hamid Souzandeh
- School of Mechanical and Materials Engineering
- Washington State University
- Pullman
- USA
| | - Yu Wang
- School of Mechanical and Materials Engineering
- Washington State University
- Pullman
- USA
| | - Wei-Hong Zhong
- School of Mechanical and Materials Engineering
- Washington State University
- Pullman
- USA
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203
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Preparation of Nanofibers with Renewable Polymers and Their Application in Wound Dressing. INT J POLYM SCI 2016. [DOI: 10.1155/2016/4672839] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Renewable polymers have attracted considerable attentions in the last two decades, predominantly due to their environmentally friendly properties, renewability, good biocompatibility, biodegradability, bioactivity, and modifiability. The nanofibers prepared from the renewable polymers can combine the excellent properties of the renewable polymer and nanofiber, such as high specific surface area, high porosity, excellent performances in cell adhesion, migration, proliferation, differentiation, and the analogous physical properties of extracellular matrix. They have been widely used in the fields of wound dressing to promote the wound healing, hemostasis, skin regeneration, and treatment of diabetic ulcers. In the present review, the different methods to prepare the nanofibers from the renewable polymers were introduced. Then the recent progress on preparation and properties of the nanofibers from different renewable polymers or their composites were reviewed; the application of them in the fields of wound dressing was emphasized.
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204
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Evaluation of the factors influencing the resultant diameter of the electrospun gelatin/sodium alginate nanofibers via Box–Behnken design. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 58:709-23. [DOI: 10.1016/j.msec.2015.09.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 08/06/2015] [Accepted: 09/07/2015] [Indexed: 12/30/2022]
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205
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Mele E. Electrospinning of natural polymers for advanced wound care: towards responsive and adaptive dressings. J Mater Chem B 2016; 4:4801-4812. [DOI: 10.1039/c6tb00804f] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanofibrous dressings produced by electrospinning proteins and polysaccharides are highly promising candidates in promoting wound healing and skin regeneration.
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Affiliation(s)
- E. Mele
- Department of Materials
- Loughborough University
- Loughborough
- UK
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206
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Balan KK, Sivanesan V, Moorthy N, Budhhan D, Jeyaseelan S, Sundaramoorthy S. Effect of thickness of mat and testing parameters on tensile strength variability of electrospun nanofibrous mat. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.matpr.2016.04.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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207
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Potential of electrospun core–shell structured gelatin–chitosan nanofibers for biomedical applications. Carbohydr Polym 2016; 136:1098-107. [DOI: 10.1016/j.carbpol.2015.10.014] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 10/04/2015] [Accepted: 10/05/2015] [Indexed: 01/09/2023]
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208
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Villarreal-Gómez LJ, Cornejo-Bravo JM, Vera-Graziano R, Grande D. Electrospinning as a powerful technique for biomedical applications: a critically selected survey. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2015; 27:157-76. [DOI: 10.1080/09205063.2015.1116885] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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209
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Zhou FL, Parker GJ, Eichhorn SJ, Hubbard Cristinacce PL. Production and cross-sectional characterization of aligned co-electrospun hollow microfibrous bulk assemblies. MATERIALS CHARACTERIZATION 2015; 109:25-35. [PMID: 26702249 PMCID: PMC4659418 DOI: 10.1016/j.matchar.2015.09.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 09/13/2015] [Indexed: 05/05/2023]
Abstract
The development of co-electrospun (co-ES) hollow microfibrous assemblies of an appreciable thickness is critical for many practical applications, including filtration membranes and tissue-mimicking scaffolds. In this study, thick uniaxially aligned hollow microfibrous assemblies forming fiber bundles and strips were prepared by co-ES of polycaprolactone (PCL) and polyethylene oxide (PEO) as shell and core materials, respectively. Hollow microfiber bundles were deposited on a fixed rotating disc, which resulted in non-controllable cross-sectional shapes on a macroscopic scale. In comparison, fiber strips were produced with tuneable thickness and width by additionally employing an x-y translation stage in co-ES. Scanning electron microscopy (SEM) images of cross-sections of fiber assemblies were analyzed to investigate the effects of production time (from 0.5 h to 12 h), core flow rate (from 0.8 mL/h to 2.0 mL/h) and/or translation speed (from 0.2 mm/s to 5 mm/s) on the pores and porosity. We observed significant changes in pore size and shape with core flow rate but the influence of production time varied; five strips produced under the same conditions had reasonably good size and porosity reproducibility; pore sizes didn't vary significantly from strip bottom to surface, although the porosity gradually decreased and then returned to the initial level.
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Affiliation(s)
- Feng-Lei Zhou
- Centre for Imaging Sciences, The University of Manchester, Manchester M13 9PT, UK
- The School of Materials, The University of Manchester, Manchester M13 9PL, UK
- CRUK-EPSRC Cancer Imaging Centre in Cambridge and Manchester, UK
| | - Geoff J.M. Parker
- Centre for Imaging Sciences, The University of Manchester, Manchester M13 9PT, UK
- CRUK-EPSRC Cancer Imaging Centre in Cambridge and Manchester, UK
| | - Stephen J. Eichhorn
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter EX4 4QF, UK
| | - Penny L. Hubbard Cristinacce
- Centre for Imaging Sciences, The University of Manchester, Manchester M13 9PT, UK
- School of Psychological Sciences, University of Manchester, Manchester M13 9PT, UK
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210
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211
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Sridhar R, Lakshminarayanan R, Madhaiyan K, Amutha Barathi V, Lim KHC, Ramakrishna S. Electrosprayed nanoparticles and electrospun nanofibers based on natural materials: applications in tissue regeneration, drug delivery and pharmaceuticals. Chem Soc Rev 2015; 44:790-814. [PMID: 25408245 DOI: 10.1039/c4cs00226a] [Citation(s) in RCA: 278] [Impact Index Per Article: 30.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Nanotechnology refers to the fabrication, characterization, and application of substances in nanometer scale dimensions for various ends. The influence of nanotechnology on the healthcare industry is substantial, particularly in the areas of disease diagnosis and treatment. Recent investigations in nanotechnology for drug delivery and tissue engineering have delivered high-impact contributions in translational research, with associated pharmaceutical products and applications. Over the past decade, the synthesis of nanofibers or nanoparticles via electrostatic spinning or spraying, respectively, has emerged as an important nanostructuring methodology. This is due to both the versatility of the electrospinning/electrospraying process and the ensuing control of nanofiber/nanoparticle surface parameters. Electrosprayed nanoparticles and electrospun nanofibers are both employed as natural or synthetic carriers for the delivery of entrapped drugs, growth factors, health supplements, vitamins, and so on. The role of nanofiber/nanoparticle carriers is substantiated by the programmed, tailored, or targeted release of their contents in the guise of tissue engineering scaffolds or medical devices for drug delivery. This review focuses on the nanoformulation of natural materials via the electrospraying or electrospinning of nanoparticles or nanofibers for tissue engineering or drug delivery/pharmaceutical purposes. Here, we classify the natural materials with respect to their animal/plant origin and macrocyclic, small molecule or herbal active constituents, and further categorize the materials according to their proteinaceous or saccharide nature.
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Affiliation(s)
- Radhakrishnan Sridhar
- Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore 117576.
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212
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213
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Preparation and Characterization of Polyvinylidene Fluoride/Graphene Superhydrophobic Fibrous Films. Polymers (Basel) 2015. [DOI: 10.3390/polym7081444] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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214
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Trends in the design of nerve guidance channels in peripheral nerve tissue engineering. Prog Neurobiol 2015; 131:87-104. [DOI: 10.1016/j.pneurobio.2015.06.001] [Citation(s) in RCA: 195] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 06/03/2015] [Accepted: 06/09/2015] [Indexed: 01/01/2023]
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215
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Preparation, in vitro mineralization and osteoblast cell response of electrospun 13–93 bioactive glass nanofibers. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 53:262-71. [DOI: 10.1016/j.msec.2015.04.037] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 03/05/2015] [Indexed: 11/22/2022]
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216
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Badhe Y, Balasubramanian K. Nanoencapsulated Core and Shell Electrospun Fibers of Resorcinol Formaldehyde. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b00929] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Yutika Badhe
- Department of Materials
Engineering, Defence Institute of Advanced Technology (Deemed University), Girinagar, Pune 411025, India
| | - Kandasubramanian Balasubramanian
- Department of Materials
Engineering, Defence Institute of Advanced Technology (Deemed University), Girinagar, Pune 411025, India
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217
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Peh P, Lim NSJ, Blocki A, Chee SML, Park HC, Liao S, Chan C, Raghunath M. Simultaneous Delivery of Highly Diverse Bioactive Compounds from Blend Electrospun Fibers for Skin Wound Healing. Bioconjug Chem 2015; 26:1348-58. [DOI: 10.1021/acs.bioconjchem.5b00123] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Priscilla Peh
- Department
of Biomedical Engineering, National University of Singapore, 9 Engineering
Drive 1, Block EA, #03-12, Singapore 117575, Singapore
- NUS
Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Level 4, Singapore 117510, Singapore
| | - Natalie Sheng Jie Lim
- Department
of Biomedical Engineering, National University of Singapore, 9 Engineering
Drive 1, Block EA, #03-12, Singapore 117575, Singapore
- NUS
Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Level 4, Singapore 117510, Singapore
| | - Anna Blocki
- Department
of Biomedical Engineering, National University of Singapore, 9 Engineering
Drive 1, Block EA, #03-12, Singapore 117575, Singapore
- NUS
Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Level 4, Singapore 117510, Singapore
- Singapore
Bioimaging Consortium (SBIC), Biomedical Sciences Institute, A*STAR,
11 Biopolis Way, #02-02 Helios, Singapore 138667, Singapore
- NUS Graduate School for Integrative Sciences & Engineering (NGS), National University of Singapore, Centre for Life Sciences (CeLS), #05-01, 28 Medical Drive, Singapore 117456, Singapore
| | - Stella Min Ling Chee
- Department
of Biomedical Engineering, National University of Singapore, 9 Engineering
Drive 1, Block EA, #03-12, Singapore 117575, Singapore
- NUS
Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Level 4, Singapore 117510, Singapore
| | - Heyjin Chris Park
- Carl Zeiss Pte Ltd, Microscopy Business Group, 50 Kaki Bukit Place, #05-01, Singapore 415926, Singapore
| | - Susan Liao
- School of
Materials Science and Engineering, Nanyang Technological University, Block N4.1 50 Nanyang Avenue, Singapore 639798, Singapore
| | - Casey Chan
- Department
of Biomedical Engineering, National University of Singapore, 9 Engineering
Drive 1, Block EA, #03-12, Singapore 117575, Singapore
- Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, NUHS Tower Block, Level 11, 1E Kent
Ridge Road, Singapore 119288, Singapore
| | - Michael Raghunath
- Department
of Biomedical Engineering, National University of Singapore, 9 Engineering
Drive 1, Block EA, #03-12, Singapore 117575, Singapore
- NUS
Tissue Engineering Programme, Life Sciences Institute, National University of Singapore, 27 Medical Drive, Level 4, Singapore 117510, Singapore
- Department
of Biochemistry, National University of Singapore, Block MD 7,
8 Medical Drive, #02-06, Singapore 117597, Singapore
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218
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Gómez-Mascaraque LG, Lagarón JM, López-Rubio A. Electrosprayed gelatin submicroparticles as edible carriers for the encapsulation of polyphenols of interest in functional foods. Food Hydrocoll 2015. [DOI: 10.1016/j.foodhyd.2015.03.006] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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219
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Yao Y, Liu H, Ding X, Jing X, Gong X, Zhou G, Fan Y. Preparation and characterization of silk fibroin/poly(l-lactide-co-ε-caprolactone) nanofibrous membranes for tissue engineering applications. J BIOACT COMPAT POL 2015. [DOI: 10.1177/0883911515585185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
In recent years, silk fibroin has become one of the most promising tissue engineering materials because of its excellent cytocompatibility. Poly(l-lactide-co-ε-caprolactone), the copolymer of poly(l-lactide) and poly(ε-caprolactone), possesses good mechanical properties, and its degradation rates can be manipulated by varying the ratio of the constituent polymers. In this study, in order to combine their respective characteristics, silk fibroin/poly(l-lactide-co-ε-caprolactone) nanofibrous membranes were fabricated through electrospinning with different mass ratios of 100:0, 75:25, 50:50, 25:75, and 0:100. The surface properties, thermodynamic properties, mechanical properties, and cytocompatibility of silk fibroin/poly(l-lactide-co-ε-caprolactone) blended membranes were evaluated, and an optimal blending ratio was identified. The results showed that the silk fibroin/poly(l-lactide-co-ε-caprolactone) blended membranes containing 75% of silk fibroin and 25% of poly(l-lactide-co-ε-caprolactone) achieved the most improved performances compared with the single-component membranes or the blended membranes with other mixing ratios. The results from this study indicated that 75/25 silk fibroin/poly(l-lactide-co-ε-caprolactone) blended membranes which combined the advantages of poly(l-lactide-co-ε-caprolactone) and silk fibroin might be a suitable candidate material for use in tissue engineering.
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Affiliation(s)
- Yuan Yao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Haifeng Liu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Xili Ding
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Xiaohui Jing
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Xianghui Gong
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Gang Zhou
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, International Research Center for Implantable and Interventional Medical Devices, School of Biological Science and Medical Engineering, Beihang University, Beijing, China
- National Research Center for Rehabilitation Technical Aids, Beijing, China
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220
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Lee HJ, Lee SJ, Uthaman S, Thomas RG, Hyun H, Jeong YY, Cho CS, Park IK. Biomedical Applications of Magnetically Functionalized Organic/Inorganic Hybrid Nanofibers. Int J Mol Sci 2015; 16:13661-77. [PMID: 26084046 PMCID: PMC4490516 DOI: 10.3390/ijms160613661] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2015] [Accepted: 06/05/2015] [Indexed: 11/16/2022] Open
Abstract
Nanofibers are one-dimensional nanomaterial in fiber form with diameter less than 1 µm and an aspect ratio (length/diameter) larger than 100:1. Among the different types of nanoparticle-loaded nanofiber systems, nanofibers loaded with magnetic nanoparticles have gained much attention from biomedical scientists due to a synergistic effect obtained from the unique properties of both the nanofibers and magnetic nanoparticles. These magnetic nanoparticle-encapsulated or -embedded nanofiber systems can be used not only for imaging purposes but also for therapy. In this review, we focused on recent advances in nanofibers loaded with magnetic nanoparticles, their biomedical applications, and future trends in the application of these nanofibers.
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Affiliation(s)
- Hwa-Jeong Lee
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-757, Korea.
| | - Sang Joon Lee
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-757, Korea.
| | - Saji Uthaman
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-757, Korea.
| | - Reju George Thomas
- Department of Radiology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Gwangju 501-746, Korea.
| | - Hoon Hyun
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-757, Korea.
| | - Yong Yeon Jeong
- Department of Radiology, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Gwangju 501-746, Korea.
| | - Chong-Su Cho
- Department of Agricultural Biotechnology and Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Korea.
| | - In-Kyu Park
- Department of Biomedical Sciences, BK21 PLUS Center for Creative Biomedical Scientists at Chonnam National University, Research Institute of Medical Sciences, Chonnam National University Medical School, Gwangju 501-757, Korea.
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221
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Younesi M, Islam A, Kishore V, Panit S, Akkus O. Fabrication of compositionally and topographically complex robust tissue forms by 3D-electrochemical compaction of collagen. Biofabrication 2015; 7:035001. [PMID: 26069162 PMCID: PMC4489851 DOI: 10.1088/1758-5090/7/3/035001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Collagen solutions are phase-transformed to mechanically robust shell structures with curviplanar topographies using electrochemically-induced pH gradients. The process enables rapid layer-by-layer deposition of collagen-rich mixtures over the entire field simultaneously to obtain compositionally diverse multilayered structures. The in-plane tensile strength and modulus of the electrocompacted collagen sheet samples were 5200-fold and 2300-fold greater than those of the uncompacted collagen samples. Out-of-plane compression tests showed a 27-fold increase in compressive stress and a 46-fold increase in compressive modulus compared to uncompacted collagen sheets. Cells proliferated 4.9 times faster, and the cellular area spread was 2.7 times greater on compacted collagen sheets. Electrocompaction also resulted in a 2.9 times greater focal adhesion area than on regular collagen hydrogel. The reported improvements in the cell-matrix interactions with electrocompaction would serve to expedite the population of electrocompacted collagen scaffolds by cells. The capacity of the method to fabricate nonlinear curved topographies with compositional heterogeneous layers is demonstrated by sequential deposition of a collagen-hydroxyapatite layer over a collagen layer. The complex curved topography of the nasal structure is replicated by the electrochemical compaction method. The presented electrochemical compaction process is an enabling modality which holds significant promise for reconstruction of a wide spectrum of topographically complex systems such as joint surfaces, craniofacial defects, ears, nose, and urogenital forms.
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Affiliation(s)
- Mousa Younesi
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
| | - Anowarul Islam
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
| | - Vipuil Kishore
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
- Department of Chemical Engineering, Florida Institute of Technology, Melbourne, FL 32901, United States
| | - Stefi Panit
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
| | - Ozan Akkus
- Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH 44106, United States
- Department of Orthopedics, Case Western Reserve University, Cleveland, OH 44106, United States
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222
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Inozemtseva OA, Salkovskiy YE, Severyukhina AN, Vidyasheva IV, Petrova NV, Metwally HA, Stetciura IY, Gorin DA. Electrospinning of functional materials for biomedicine and tissue engineering. RUSSIAN CHEMICAL REVIEWS 2015. [DOI: 10.1070/rcr4435] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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223
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Wade RJ, Bassin EJ, Rodell CB, Burdick JA. Protease-degradable electrospun fibrous hydrogels. Nat Commun 2015; 6:6639. [PMID: 25799370 PMCID: PMC4372144 DOI: 10.1038/ncomms7639] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 02/11/2015] [Indexed: 12/13/2022] Open
Abstract
Electrospun nanofibers are promising in biomedical applications to replicate features of the natural extracellular matrix (ECM). However, nearly all electrospun scaffolds are either non-degradable or degrade hydrolytically, whereas natural ECM degrades proteolytically, often through matrix metalloproteinases (MMPs). Here, we synthesize reactive macromers that contain protease-cleavable and fluorescent peptides and are able to form both isotropic hydrogels and electrospun fibrous hydrogels through a photoinitiated polymerization. These biomimetic scaffolds are susceptible to protease-mediated cleavage in vitro in a protease dose dependent manner and in vivo in a subcutaneous mouse model using transdermal fluorescent imaging to monitor degradation. Importantly, materials containing an alternate and non-protease-cleavable peptide sequence are stable in both in vitro and in vivo settings. To illustrate the specificity in degradation, scaffolds with mixed fiber populations support selective fiber degradation based on individual fiber degradability. Overall, this represents a novel biomimetic approach to generate protease-sensitive fibrous scaffolds for biomedical applications.
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Affiliation(s)
- Ryan J Wade
- 1] Department of Materials Science and Engineering, University of Pennsylvania, 200 LRSM, 3231 Walnut Street, Philadelphia, Pennsylvania 19104, USA [2] Department of Bioengineering, University of Pennsylvania, 240 Skirkanich Hall, 210 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
| | - Ethan J Bassin
- Department of Bioengineering, University of Pennsylvania, 240 Skirkanich Hall, 210 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
| | - Christopher B Rodell
- Department of Bioengineering, University of Pennsylvania, 240 Skirkanich Hall, 210 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
| | - Jason A Burdick
- Department of Bioengineering, University of Pennsylvania, 240 Skirkanich Hall, 210 South 33rd Street, Philadelphia, Pennsylvania 19104, USA
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224
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Erencia M, Cano F, Tornero JA, Fernandes MM, Tzanov T, Macanás J, Carrillo F. Electrospinning of gelatin fibers using solutions with low acetic acid concentration: Effect of solvent composition on both diameter of electrospun fibers and cytotoxicity. J Appl Polym Sci 2015. [DOI: 10.1002/app.42115] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marisa Erencia
- INTEXTER Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya, C/Colom 15; 08222 Terrassa Spain
| | - Francisco Cano
- INTEXTER Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya, C/Colom 15; 08222 Terrassa Spain
| | - Jose A. Tornero
- INTEXTER Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya, C/Colom 15; 08222 Terrassa Spain
| | - Margarida M. Fernandes
- Grup de Biotecnologia Molecular i Industrial; Departament d'Enginyeria Química, Universitat Politècnica de Catalunya; Edifici Gaia, Rambla Sant Nebridi 08222 Terrassa Spain
| | - Tzanko Tzanov
- Grup de Biotecnologia Molecular i Industrial; Departament d'Enginyeria Química, Universitat Politècnica de Catalunya; Edifici Gaia, Rambla Sant Nebridi 08222 Terrassa Spain
| | - Jorge Macanás
- Grup de Materials Polimèrics i Química Tèxtil; Departament d'Enginyeria Química; EET, Universitat Politècnica de Catalunya (UPC), C/Colom 1; 08222 Terrassa Spain
| | - Fernando Carrillo
- INTEXTER Institut d'Investigació Tèxtil i Cooperació Industrial de Terrassa; Universitat Politècnica de Catalunya, C/Colom 15; 08222 Terrassa Spain
- Grup de Materials Polimèrics i Química Tèxtil; Departament d'Enginyeria Química; EET, Universitat Politècnica de Catalunya (UPC), C/Colom 1; 08222 Terrassa Spain
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Joy J, Gupta P, Ray AR, Gupta A, Sharma A, Sharma D, Gupta B. Fabrication of Smooth Electrospun Nanofibrous Gelatin Mat for Potential Application in Tissue Engineering. INT J POLYM MATER PO 2015. [DOI: 10.1080/00914037.2014.977898] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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226
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Jalaja K, James NR. Electrospun gelatin nanofibers: A facile cross-linking approach using oxidized sucrose. Int J Biol Macromol 2015; 73:270-8. [DOI: 10.1016/j.ijbiomac.2014.11.018] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 10/11/2014] [Accepted: 11/16/2014] [Indexed: 11/28/2022]
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227
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Choi J, Panthi G, Liu Y, Kim J, Chae SH, Lee C, Park M, Kim HY. Keratin/poly (vinyl alcohol) blended nanofibers with high optical transmittance. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.12.052] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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228
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Tian L, Prabhakaran MP, Ramakrishna S. Strategies for regeneration of components of nervous system: scaffolds, cells and biomolecules. Regen Biomater 2015; 2:31-45. [PMID: 26813399 PMCID: PMC4669026 DOI: 10.1093/rb/rbu017] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 08/29/2014] [Accepted: 09/14/2014] [Indexed: 12/12/2022] Open
Abstract
Nerve diseases including acute injury such as peripheral nerve injury (PNI), spinal cord injury (SCI) and traumatic brain injury (TBI), and chronic disease like neurodegeneration disease can cause various function disorders of nervous system, such as those relating to memory and voluntary movement. These nerve diseases produce great burden for individual families and the society, for which a lot of efforts have been made. Axonal pathways represent a unidirectional and aligned architecture allowing systematic axonal development within the tissue. Following a traumatic injury, the intricate architecture suffers disruption leading to inhibition of growth and loss of guidance. Due to limited capacity of the body to regenerate axonal pathways, it is desirable to have biomimetic approach that has the capacity to graft a bridge across the lesion while providing optimal mechanical and biochemical cues for tissue regeneration. And for central nervous system injury, one more extra precondition is compulsory: creating a less inhibitory surrounding for axonal growth. Electrospinning is a cost-effective and straightforward technique to fabricate extracellular matrix (ECM)-like nanofibrous structures, with various fibrous forms such as random fibers, aligned fibers, 3D fibrous scaffold and core-shell fibers from a variety of polymers. The diversity and versatility of electrospinning technique, together with functionalizing cues such as neurotrophins, ECM-based proteins and conductive polymers, have gained considerable success for the nerve tissue applications. We are convinced that in the future the stem cell therapy with the support of functionalized electrospun nerve scaffolds could be a promising therapy to cure nerve diseases.
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Affiliation(s)
- Lingling Tian
- Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576 and Nanoscience and Nanotechnology Initiative, National University of Singapore, 2 Engineering Drive 3, Singapore 117576
| | - Molamma P Prabhakaran
- Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576 and Nanoscience and Nanotechnology Initiative, National University of Singapore, 2 Engineering Drive 3, Singapore 117576
| | - Seeram Ramakrishna
- Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576 and Nanoscience and Nanotechnology Initiative, National University of Singapore, 2 Engineering Drive 3, Singapore 117576
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229
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Lepe PGT, Tucker N, Simmons L, Watson AJA, Fairbanks AJ, Staiger MP. Sub-micron sized saccharide fibres via electrospinning. ACTA ACUST UNITED AC 2015. [DOI: 10.1515/esp-2016-0001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractIn this work, the production of continuous submicron diameter saccharide fibres is shown to be possible using the electrospinning process. The mechanism for the formation of electrospun polymer fibres is usually attributed to the physical entanglement of long molecular chains. The ability to electrospin continuous fibre from a low molecular weight saccharides was an unexpected phenomenon. The formation of sub-micron diameter “sugar syrup” fibres was observed in situ using highspeed video. The trajectory of the electrospun saccharide fibre was observed to follow that typical of electrospun polymers. Based on initial food grade glucose syrup tests, various solutions based on combinations of syrup components, i.e. mono-, di- and tri-saccharides, were investigated to map out materials and electrospinning conditions thatwould lead to the formation of fibre. Thiswork demonstrated that sucrose exhibits the highest propensity for fibre formation during electrospinning amongst the various types of saccharide solutions studied. The possibility of electrospinning low molecular weight saccharides into sub-micron fibres has implications for the electrospinability of supramolecular polymers and other biomaterials.
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230
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Liu M, Wang Y, Cheng Z, Zhang M, Hu M, Li J. Electrospun carboxylic-functionalized poly(arylene ether ketone) ultrafine fibers. HIGH PERFORM POLYM 2015. [DOI: 10.1177/0954008314566434] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
As a high-performance polymer, carboxylic-functionalized poly(arylene ether ketone)s (PCA-PAEK) was electrospun into ultrafine fibers and characterized. To optimize the process, a set of experiments were designed. As a result, the optimum condition was obtained and the polymer concentration was determined as the most important factor. Incidentally, the PCA-PAEK fibers were found to exhibit superabsorbent behavior. In order to investigate processing characteristics, PCA-PAEK fibers fabricated from different solution concentrations were employed and characterized. The results showed that porosity and changes in water contact angle and water absorbency decreased with an increase in concentration. In addition to a high water absorption capacity, the fibers exhibited good water retention and repeated water absorbency as well. The study on kinetics of water absorption and swelling behavior showed that the mechanism was dependent on the polymer concentration from which the fibers were electrospun. Moreover, both dry and wet PCA-PAEK fibers showed high mechanical properties. Due to these properties, the PCA-PAEK ultrafine fibers are potentially useful as a water-absorbent material.
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Affiliation(s)
- Mengzhu Liu
- College of Chemistry, Jilin University, Changchun, People’s Republic of China
| | - Yongpeng Wang
- College of Chemistry, Jilin University, Changchun, People’s Republic of China
| | - Zhiqiang Cheng
- College of Resources and Environment, Jilin Agriculture University, Changchun, People’s Republic of China
| | - Mingyue Zhang
- College of Chemistry, Jilin University, Changchun, People’s Republic of China
| | - Meijuan Hu
- College of Chemistry, Jilin University, Changchun, People’s Republic of China
| | - Junfeng Li
- College of Chemistry, Jilin University, Changchun, People’s Republic of China
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231
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K J, Naskar D, Kundu SC, James NR. Fabrication of cationized gelatin nanofibers by electrospinning for tissue regeneration. RSC Adv 2015. [DOI: 10.1039/c5ra10384c] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A green fabrication approach has been developed to produce biocompatible and non-cytotoxic cationically modified gelatin nanofibers with enhanced biological performance.
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Affiliation(s)
- Jalaja K
- Department of Chemistry
- Indian Institute of Space Science and Technology
- Thiruvananthapuram-695 547
- India
| | - Deboki Naskar
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Subhas C. Kundu
- Department of Biotechnology
- Indian Institute of Technology Kharagpur
- India
| | - Nirmala Rachel James
- Department of Chemistry
- Indian Institute of Space Science and Technology
- Thiruvananthapuram-695 547
- India
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232
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Islam MS, Rahaman MS, Yeum JH. Electrospun novel super-absorbent based on polysaccharide–polyvinyl alcohol–montmorillonite clay nanocomposites. Carbohydr Polym 2015; 115:69-77. [DOI: 10.1016/j.carbpol.2014.08.086] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/19/2014] [Accepted: 08/13/2014] [Indexed: 11/15/2022]
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233
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Tsai RY, Kuo TY, Hung SC, Lin CM, Hsien TY, Wang DM, Hsieh HJ. Use of gum arabic to improve the fabrication of chitosan–gelatin-based nanofibers for tissue engineering. Carbohydr Polym 2015; 115:525-32. [DOI: 10.1016/j.carbpol.2014.08.108] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2014] [Revised: 08/22/2014] [Accepted: 08/23/2014] [Indexed: 11/28/2022]
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234
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Electrospinning of Bioinspired Polymer Scaffolds. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2015; 881:33-53. [DOI: 10.1007/978-3-319-22345-2_3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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235
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Electrospun gelatin/poly(ε-caprolactone) fibrous scaffold modified with calcium phosphate for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 44:183-90. [DOI: 10.1016/j.msec.2014.08.017] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 06/17/2014] [Accepted: 08/03/2014] [Indexed: 01/08/2023]
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236
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Sajkiewicz P, Kołbuk D. Electrospinning of gelatin for tissue engineering--molecular conformation as one of the overlooked problems. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2014; 25:2009-22. [PMID: 25357002 DOI: 10.1080/09205063.2014.975392] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Gelatin is one of the most promising materials in tissue engineering as a scaffold component. This biopolymer indicates biocompatibility and bioactivity caused by the existence of specific amino acid sequences, being preferred sites for interactions with cells, with high similarity to natural extracellular matrix. The present paper does not aspire to be a full review of electrospinning of gelatin and gelatin containing nanofibers as scaffolds in tissue engineering. It is focused on the still open question of the role of the higher order structures of gelatin in scaffold's bioactivity/functionality. Gelatin molecules can adopt various conformations depending on temperature, solvent, pH, etc. Our review indicates the potential ways for formation of α-helix conformation during electrospinning and the methods of further structure stabilization. It is intuitively expected that the native α-helix conformation appearing as a result of partial renaturation of gelatin can be beneficial from the viewpoint of bioactivity of scaffolds, providing thus a much cheaper alternative approach as opposed to expensive electrospinning of native collagen.
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Affiliation(s)
- P Sajkiewicz
- a Institute of Fundamental Technological Research , Polish Academy of Sciences , Pawinskiego 5B, 02-106 Warsaw , Poland
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237
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He C, Nie W, Feng W. Engineering of biomimetic nanofibrous matrices for drug delivery and tissue engineering. J Mater Chem B 2014; 2:7828-7848. [PMID: 32262073 DOI: 10.1039/c4tb01464b] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Biomimetic nanofibers have emerged as promising candidates for drug delivery and tissue engineering applications. In this paper, recent advances on the fabrication and application of biomimetic nanofibers as drug carriers and scaffolding materials are reviewed. First, we delineate the three popular nanofiber fabrication techniques including electrospinning, phase separation and molecular self-assembly, covering the principal materials used for different techniques and surface functionalization strategies for nanofibers. Furthermore, we focus our interest on the nanofiber-based delivery strategies and underlying kinetics for growth factors and other bioactive molecules, following which we summarize the recent advances in the development of these nanofibrous matrices for bone, vascular and neural tissue engineering applications. Finally, research challenges and future trends in the related areas are discussed.
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Affiliation(s)
- Chuanglong He
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, 201620, China.
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238
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Pereira IHL, Ayres E, Averous L, Schlatter G, Hebraud A, Mendes STOL, Oréfice RL. Elaboration and Characterization of Coaxial Electrospun Poly(ε-Caprolactone)/Gelatin Nanofibers for Biomedical Applications. ADVANCES IN POLYMER TECHNOLOGY 2014. [DOI: 10.1002/adv.21475] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ildeu H. L. Pereira
- Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais (UFMG); Pampulha Belo Horizonte MG Brazil
| | - Eliane Ayres
- Department of Materials, Technologies and Processes, School of Design; Minas Gerais State University (UEMG); Belo Horizonte MG Brazil
| | - Luc Averous
- ICPEES-ECPM; UMR 7515, Université de Strasbourg; 67087 Strasbourg Cedex 2 France
| | - Guy Schlatter
- ICPEES-ECPM; UMR 7515, Université de Strasbourg; 67087 Strasbourg Cedex 2 France
| | - Anne Hebraud
- ICPEES-ECPM; UMR 7515, Université de Strasbourg; 67087 Strasbourg Cedex 2 France
| | | | - Rodrigo L. Oréfice
- Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais (UFMG); Pampulha Belo Horizonte MG Brazil
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239
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240
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241
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Stephansen K, Chronakis IS, Jessen F. Bioactive electrospun fish sarcoplasmic proteins as a drug delivery system. Colloids Surf B Biointerfaces 2014; 122:158-165. [PMID: 25033436 DOI: 10.1016/j.colsurfb.2014.06.053] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 06/23/2014] [Accepted: 06/24/2014] [Indexed: 12/21/2022]
Abstract
Nano-microfibers were made from cod (Gadus morhua) sarcoplasmic proteins (FSP) (Mw<200kDa) using the electrospinning technique. The FSP fibers were studied by scanning electron microscopy, and the fiber morphology was found to be strongly dependent on FSP concentration. Interestingly, the FSP fibers were insoluble in water. However, when exposed to proteolytic enzymes, the fibers were degraded. The degradation products of the FSP fibers proved to be inhibitors of the diabetes-related enzyme DPP-IV. The FSP fibers may have biomedical applications, among others as a delivery system. To demonstrate this, a dipeptide (Ala-Trp) was encapsulated into the FSP fibers, and the release properties were investigated in gastric buffer and in intestinal buffer. The release profile showed an initial burst release, where 30% of the compound was released within the first minute, after which an additional 40% was released (still exponential) within the next 30min (gastric buffer) or 15min (intestinal buffer). The remaining 30% was not released in the timespan of the experiment.
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Affiliation(s)
- Karen Stephansen
- National Food Institute, Technical University of Denmark, Søltofts Plads 227, 2800 Kongens Lyngby, Denmark.
| | - Ioannis S Chronakis
- National Food Institute, Technical University of Denmark, Søltofts Plads 227, 2800 Kongens Lyngby, Denmark
| | - Flemming Jessen
- National Food Institute, Technical University of Denmark, Søltofts Plads 227, 2800 Kongens Lyngby, Denmark
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242
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Tsai RY, Hung SC, Lai JY, Wang DM, Hsieh HJ. Electrospun chitosan–gelatin–polyvinyl alcohol hybrid nanofibrous mats: Production and characterization. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.11.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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243
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Raimi-Abraham BT, Mahalingam S, Edirisinghe M, Craig DQ. Generation of poly(N-vinylpyrrolidone) nanofibres using pressurised gyration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 39:168-76. [DOI: 10.1016/j.msec.2014.02.016] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/18/2014] [Accepted: 02/12/2014] [Indexed: 11/26/2022]
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244
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Huang GP, Shanmugasundaram S, Masih P, Pandya D, Amara S, Collins G, Arinzeh TL. An investigation of common crosslinking agents on the stability of electrospun collagen scaffolds. J Biomed Mater Res A 2014; 103:762-71. [DOI: 10.1002/jbm.a.35222] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Accepted: 05/05/2014] [Indexed: 01/23/2023]
Affiliation(s)
- Gloria Portocarrero Huang
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
| | - Shobana Shanmugasundaram
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
| | - Pallavi Masih
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
| | - Deep Pandya
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
| | - Suwah Amara
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
| | - George Collins
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
| | - Treena Livingston Arinzeh
- Department of Biomedical Engineering; New Jersey Institute of Technology; Newark New Jersey 07102-1982
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245
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246
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Dai X, Kathiria K, Huang YC. Electrospun fiber scaffolds of poly (glycerol-dodecanedioate) and its gelatin blended polymers for soft tissue engineering. Biofabrication 2014; 6:035005. [DOI: 10.1088/1758-5082/6/3/035005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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247
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Jeong L, Park WH. Preparation and characterization of gelatin nanofibers containing silver nanoparticles. Int J Mol Sci 2014; 15:6857-79. [PMID: 24758929 PMCID: PMC4013666 DOI: 10.3390/ijms15046857] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Revised: 03/03/2014] [Accepted: 03/25/2014] [Indexed: 12/01/2022] Open
Abstract
Ag nanoparticles (NPs) were synthesized in formic acid aqueous solutions through chemical reduction. Formic acid was used for a reducing agent of Ag precursor and solvent of gelatin. Silver acetate, silver tetrafluoroborate, silver nitrate, and silver phosphate were used as Ag precursors. Ag+ ions were reduced into Ag NPs by formic acid. The formation of Ag NPs was characterized by a UV-Vis spectrophotometer. Ag NPs were quickly generated within a few minutes in silver nitrate (AgNO3)/formic acid solution. As the water content of formic acid aqueous solution increased, more Ag NPs were generated, at a higher rate and with greater size. When gelatin was added to the AgNO3/formic acid solution, the Ag NPs were stabilized, resulting in smaller particles. Moreover, gelatin limits further aggregation of Ag NPs, which were effectively dispersed in solution. The amount of Ag NPs formed increased with increasing concentration of AgNO3 and aging time. Gelatin nanofibers containing Ag NPs were fabricated by electrospinning. The average diameters of gelatin nanofibers were 166.52 ± 32.72 nm, but these decreased with the addition of AgNO3. The average diameters of the Ag NPs in gelatin nanofibers ranged between 13 and 25 nm, which was confirmed by transmission electron microscopy (TEM).
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Affiliation(s)
- Lim Jeong
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, Korea.
| | - Won Ho Park
- Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University, Daejeon 305-764, Korea.
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248
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Vatankhah E, Prabhakaran MP, Semnani D, Razavi S, Zamani M, Ramakrishna S. Phenotypic modulation of smooth muscle cells by chemical and mechanical cues of electrospun tecophilic/gelatin nanofibers. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4089-4101. [PMID: 24588215 DOI: 10.1021/am405673h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The ability of mature smooth muscle cells (SMCs) to modulate their phenotype in response to environmental cues is a critical issue related to vascular diseases. A tissue engineered vascular graft shall promote the contractile phenotype of vascular SMCs. To this aim, Tecophilic/gelatin (TP/gel) was electrospun at different weight ratios of TP/gelatin (100:0, 70:30, 50:50, 30:70), leading to differences in biochemical and mechanical properties of the nanofibers which in turn influenced the phenotype of SMCs. Results indicated that both the substrate with higher ligand density and lower stiffness could enhance SMC contractility and reduce cell proliferation. However, observing the highest SMCs contractility on electrospun TP(70)/gel(30) among the composite scaffolds demonstrated stiffness as the most critical parameter. Due to conflicting effects of softness versus minor fraction of gelatin (reduced ligand density) within TP(70)/gel(30) fibers, a relatively high proliferation of SMCs was still observed on TP(70)/gel(30) scaffold. The surface of TP(70)/gel(30) scaffold was further modified through physical adsorption of gelatin molecules so as to increase the ligand density on its surface, whereby a functional vascular construct that promotes the contractile behavior of SMCs with low cell proliferation was developed.
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Affiliation(s)
- Elham Vatankhah
- Department of Textile Engineering, Isfahan University of Technology , Isfahan 84156-83111, Iran
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249
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Løvdal A, Vange J, Nielsen LF, Almdal K. MECHANICAL PROPERTIES OF ELECTROSPUN PCL SCAFFOLD UNDER IN VITRO AND ACCELERATED DEGRADATION CONDITIONS. BIOMEDICAL ENGINEERING-APPLICATIONS BASIS COMMUNICATIONS 2014. [DOI: 10.4015/s1016237214500434] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Within recent years, researchers have looked into using polycaprolactone (PCL) as a synthetic biodegradable scaffold for tissue engineering purposes. This study investigated the mechanical properties of an electrospun PCL, while being exposed to physiological fluids at 37°C (in vitro conditions) with and without the influence of cell in-growth. The molecular weight and mechanical properties were monitored during the degradation. Incubation in physiological fluids for 3–16 weeks showed an improvement in mechanical properties and no reduction in molecular weight. It was also shown that cells did not deteriorate the mechanical properties of PCL after 16 weeks. The viability of the cells decreased over time, however, without influencing the mechanical properties of the scaffold. A relation between reduction in molecular weight and the mechanical properties of electrospun PCL was seen between 2–29 days in buffer (pH 12). The accelerated study showed a linear decrease in both elastic modulus and yield stress as a function of degradation time.
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Affiliation(s)
- Alexandra Løvdal
- DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, Produktionstorvet, Building 423, 2800 Kgs. Lyngby, Denmark
| | - Jakob Vange
- Coloplast A/S, Holtedam 1, 3050 Humlebæk, Denmark
| | | | - Kristoffer Almdal
- DTU Nanotech, Department of Micro- and Nanotechnology, Technical University of Denmark, Produktionstorvet, Building 423, 2800 Kgs. Lyngby, Denmark
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250
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Wang N, Burugapalli K, Wijesuriya S, Far MY, Song W, Moussy F, Zheng Y, Ma Y, Wu Z, Li K. Electrospun polyurethane-core and gelatin-shell coaxial fibre coatings for miniature implantable biosensors. Biofabrication 2014; 6:015002. [PMID: 24346001 PMCID: PMC3969240 DOI: 10.1088/1758-5082/6/1/015002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study was to introduce bioactivity to the electrospun coating for implantable glucose biosensors. Coaxial fibre membranes having polyurethane as the core and gelatin as the shell were produced using a range of polyurethane concentrations (2, 4, 6 and 8% wt/v) while keeping gelatin concentration (10% wt/v) constant in 2,2,2-trifluoroethanol. The gelatin shell was stabilized using glutaraldehyde vapour. The formation of core-shell structure was confirmed using transmission/scanning electron microscopy and FTIR. The coaxial fibre membranes showed uniaxial tensile properties intermediate to that of the pure polyurethane and the gelatin fibre membranes. The gelatin shell increased hydrophilicity and glucose transport flux across the coaxial fibre membranes. The coaxial fibre membranes having small fibre diameter (541 nm) and a thick gelatin shell (52%) did not affect the sensor sensitivity, but decreased sensor's linearity in the long run. In contrast, thicker coaxial fibre membranes (1133 nm) having a thin gelatin shell (34%) maintained both sensitivity and linearity for the 84 days of the study period. To conclude, polyurethane-gelatin coaxial fibre membranes, due to their faster permeability to glucose, tailorable mechanical properties and bioactivity, are potential candidates for coatings to favourably modify the host responses to extend the reliable in vivo lifetime of implantable glucose biosensors.
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Affiliation(s)
- Ning Wang
- Brunel Institute for Bioengineering, Brunel University, Uxbridge, London, UK
| | - Krishna Burugapalli
- Brunel Institute for Bioengineering, Brunel University, Uxbridge, London, UK
| | - Shavini Wijesuriya
- Brunel Institute for Bioengineering, Brunel University, Uxbridge, London, UK
| | - Mahshid Yazdi Far
- Wolfson Centre for Materials Processing, Brunel University, Uxbridge, London, UK
| | - Wenhui Song
- Wolfson Centre for Materials Processing, Brunel University, Uxbridge, London, UK
| | - Francis Moussy
- Brunel Institute for Bioengineering, Brunel University, Uxbridge, London, UK
| | - Yudong Zheng
- School of Materials Science & Engineering, University of Science and Technology Beijing, China
| | - Yanxuan Ma
- School of Materials Science & Engineering, University of Science and Technology Beijing, China
| | - Zhentao Wu
- Department of Chemical Engineering, Imperial College, London, UK
| | - Kang Li
- Department of Chemical Engineering, Imperial College, London, UK
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