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Ranjbar-Mohammadi M, Tajdar F, Esmizadeh E, Arab Z. Co electrospinning -poly (vinyl alcohol)-chitosan/gelatin-poly ( ϵ-caprolacton) nanofibers for diabetic wound-healing application. Biomed Mater 2024; 19:045017. [PMID: 38768605 DOI: 10.1088/1748-605x/ad4df6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 05/20/2024] [Indexed: 05/22/2024]
Abstract
With the increasing prevalence of diabetes, the healing of diabetic wounds has become a significant challenge for both healthcare professionals and patients. Recognizing the urgent need for effective solutions, it is crucial to develop suitable scaffolds specifically tailored for diabetic wound healing. In line with this objective, we have developed novel hybrid nanofibrous scaffolds by combining polyvinyl alcohol/chitosan (PVA/CS) and gelatin/poly(ε-caprolactone) (Gel/PCL) polymers through a double-nozzle electrospinning technique. In this study, we investigated the influence of the Gel/PCL blend ratio on the properties of the resulting nanofibers. Three different hybrid scaffold structures were examined: Gel/PCL (80:20)-PVA/CS (80:20), Gel/PCL (50:50)-PVA/CS (80:20), and Gel/PVA (20:80)-PVA/CS (80:20). Our findings demonstrate that the electrospun nanofibers of PVA/CS (80:20)-Gel/PCL (80:20) exhibited optimal mechanical performance, with a contact angle of approximately 54° and a diameter of 183 nm. Considering the crucial role of inhibiting bacterial adhesion in the success of implanted materials, we evaluated the cytocompatibility of the hybrid electrospun nanofibers using mouse fibroblast cells (L-929 cells). The in vitro cytotoxicity results obtained from L-929 fibroblast cell culture on the hybrid scaffolds revealed enhanced cell proliferation and appropriate cell morphology on the PVA/CS (80:20)-Gel/PCL (80:20) sample, indicating its capability to support tissue cell integration. Based on the information obtained from this study, the fabricated hybrid scaffold holds great promise for diabetic ulcer healing. Its optimal mechanical properties, suitable contact angle, and favorable cytocompatibility highlight its potential as a valuable tool in the field of diabetic wound healing. The development of such hybrid scaffolds represents a significant step forward in addressing the challenges associated with diabetic wound care.
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Affiliation(s)
| | - Farideh Tajdar
- Textile group, Faculty of Engineering, University of Bonab, Postal Code 5551761167, Bonab, Iran
| | - Elnaz Esmizadeh
- Construction Research Center, National Research Council Canada, 1200 Montreal Rd, Ottawa, ON K1A 0R6, Canada
| | - Zahra Arab
- Metabolic Disorders Research Center, Golestan University of Medical Sciences, Gorgan, Iran
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2
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Rolińska K, Bakhshi H, Balk M, Blocki A, Panwar A, Puchalski M, Wojasiński M, Mazurek-Budzyńska M. Electrospun Poly(carbonate-urea-urethane)s Nonwovens with Shape-Memory Properties as a Potential Biomaterial. ACS Biomater Sci Eng 2023; 9:6683-6697. [PMID: 38032398 PMCID: PMC10716822 DOI: 10.1021/acsbiomaterials.3c01214] [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: 08/24/2023] [Revised: 11/08/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023]
Abstract
Poly(carbonate-urea-urethane) (PCUU)-based scaffolds exhibit various desirable properties for tissue engineering applications. This study thus aimed to investigate the suitability of PCUU as polymers for the manufacturing of nonwoven mats by electrospinning, able to closely mimic the fibrous structure of the extracellular matrix. PCUU nonwovens of fiber diameters ranging from 0.28 ± 0.07 to 0.82 ± 0.12 μm were obtained with an average surface porosity of around 50-60%. Depending on the collector type and solution concentration, a broad range of tensile strengths (in the range of 0.3-9.6 MPa), elongation at break (90-290%), and Young's modulus (5.7-26.7 MPa) at room temperature of the nonwovens could be obtained. Furthermore, samples collected on the plate collector showed a shape-memory effect with a shape-recovery ratio (Rr) of around 99% and a shape-fixity ratio (Rf) of around 96%. Biological evaluation validated the inertness, stability, and lack of cytotoxicity of PCUU nonwovens obtained on the plate collector. The ability of mesenchymal stem cells (MSCs) and endothelial cells (HUVECs) to attach, elongate, and grow on the surface of the nonwovens suggests that the manufactured nonwovens are suitable scaffolds for tissue engineering applications.
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Affiliation(s)
- Karolina Rolińska
- Faculty
of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Hadi Bakhshi
- Department
of Life Science and Bioprocesses, Fraunhofer
Institute for Applied Polymer Research IAP, Geiselbergstraße 69, 14476 Potsdam, Germany
| | - Maria Balk
- Institute
of Active Polymers, Helmholtz-Zentrum Hereon, Kantstraße 55, 14513 Teltow, Germany
| | - Anna Blocki
- Institute
for Tissue Engineering and Regenerative Medicine, The Chinese University
of Hong Kong, Shatin, New Territories 999077, Hong Kong
- School of
Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories 999077, Hong Kong
- Center
for Neuromusculoskeletal Restorative Medicine, The Chinese University of Hong Kong, Shatin, New Territories 999077, Hong Kong
| | - Amit Panwar
- Institute
for Tissue Engineering and Regenerative Medicine, The Chinese University
of Hong Kong, Shatin, New Territories 999077, Hong Kong
- School of
Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories 999077, Hong Kong
- Center
for Neuromusculoskeletal Restorative Medicine, The Chinese University of Hong Kong, Shatin, New Territories 999077, Hong Kong
| | - Michał Puchalski
- Institute
of Material Science of Textiles and Polymer Composites, Faculty of
Material Technologies and Textile Design, Lodz University of Technology, ul. Żeromskiego 116, 90-924 Łódź, Poland
| | - Michał Wojasiński
- Faculty
of Chemical and Process Engineering, Department of Biotechnology and
Bioprocess Engineering, Laboratory of Biomedical Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
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3
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Lizarazo-Fonseca L, Correa-Araujo L, Prieto-Abello L, Camacho-Rodríguez B, Silva-Cote I. In vitro and in vivo evaluation of electrospun poly (ε-caprolactone)/collagen scaffolds and Wharton's jelly mesenchymal stromal cells (hWJ-MSCs) constructs as potential alternative for skin tissue engineering. Regen Ther 2023; 24:11-24. [PMID: 37284730 PMCID: PMC10239703 DOI: 10.1016/j.reth.2023.05.005] [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: 01/06/2023] [Revised: 03/08/2023] [Accepted: 05/20/2023] [Indexed: 06/08/2023] Open
Abstract
Dermal substitutes bear a high clinical demand because of their ability to promote the healing process of cutaneous wounds by reducing the healing time the appearance and improving the functionality of the repaired tissue. Despite the increasing development of dermal substitutes, most of them are only composed of biological or biosynthetic matrices. This demonstrates the need for new developments focused on using scaffolds with cells (tissue construct) that promote the production of factors for biological signaling, wound coverage, and general support of the tissue repair process. Here, we fabricate by electrospinning two scaffolds: poly(ε-caprolactone) (PCL) as a control and poly(ε-caprolactone)/collagen type I (PCol) in a ratio lower collagen than previously reported, 19:1, respectively. Then, characterize their physicochemical and mechanical properties. As we bear in mind the creation of a biologically functional construct, we characterize and assess in vitro the implications of seeding human Wharton's jelly mesenchymal stromal cells (hWJ-MSCs) on both scaffolds. Finally, to determine the potential functionality of the constructs in vivo, their efficiency was evaluated in a porcine biomodel. Our findings demonstrated that collagen incorporation in the scaffolds produces fibers with similar diameters to those in the human native extracellular matrix, increases wettability, and enhances the presence of nitrogen on the scaffold surface, improving cell adhesion and proliferation. These synthetic scaffolds improved the secretion of factors by hWJ-MSCs involved in skin repair processes such as b-FGF and Angiopoietin I and induced its differentiation towards epithelial lineage, as shown by the increased expression of Involucrin and JUP. In vivo experiments confirmed that lesions treated with the PCol/hWJ-MSCs constructs might reproduce a morphological organization that seems relatively equivalent to normal skin. These results suggest that the PCol/hWJ-MSCs construct is a promising alternative for skin lesions repair in the clinic.
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Affiliation(s)
| | | | | | | | - Ingrid Silva-Cote
- Corresponding author. Secretaría Distrital de Salud, Carrera 32 # 12-81, Bogotá, Colombia
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4
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Sangroniz L, Safari M, Martínez de Ilarduya A, Sardon H, Cavallo D, Müller AJ. Disappearance of Melt Memory Effect with Comonomer Incorporation in Isodimorphic Random Copolyesters. Macromolecules 2023; 56:7879-7888. [PMID: 37841533 PMCID: PMC10569436 DOI: 10.1021/acs.macromol.3c01389] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/31/2023] [Indexed: 10/17/2023]
Abstract
Melt memory effects in polymer crystallization have attracted much attention in the past few years. Although progress has been made in understanding how the chemical structure of polymers can affect melt memory, there are still some knowledge gaps. In this work, we study how incorporating a second comonomer unit that is partially included in the crystalline unit cell affects the melt memory effect of the major component in a random isodimorphic copolymer for the first time. This second comonomer unit depresses the melting temperature of the homopolymer, reduces the crystallinity, and distorts the crystalline unit cell. However, its effect on the stability of self-nuclei and the production of melt memory has not been studied so far. To this aim, we have selected poly[(butylene succinate)-ran-(ε-caprolactone)] random copolyesters PBS-ran-PCL that are isodimorphic, i.e., they exhibit a pseudoeutectic point. This point separates the formation of BS-rich crystals from CL-rich crystals as a function of composition. The results reveal that the melt memory effect of these isodimorphic copolymers is strongly reduced with the incorporation of even very small amounts of comonomer unit (i.e., 1 molar %). This indicates that the incorporation of a second comonomer unit in the polymer chain disrupts the intermolecular interactions present between the chain segments in the crystal lattice of the major component and reduces the capacity of the material to produce self-nuclei. This reduction is more drastic for copolymers in which the second comonomer unit is mostly rejected from the crystalline phase. Contrary to olefin-based copolymers, for copolyesters, the second comonomer unit eases the process to reach an isotropic melt state upon melting. This work reveals the impact of introducing comonomer units on the melt memory effect in isodimorphic random copolyesters.
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Affiliation(s)
- Leire Sangroniz
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Maryam Safari
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
- Physical
Chemistry and Soft Matter, Wageningen University
& Research, Wageningen 6708 WE, The Netherlands
| | - Antxon Martínez de Ilarduya
- Department
d’Enginyeria Química, Universitat
Politècnica de Catalunya, ETSEIB, Diagonal 647, 08028 Barcelona, Spain
| | - Haritz Sardon
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
| | - Dario Cavallo
- Department
of Chemistry and Industrial Chemistry, University
of Genova, Via Dodecaneso 31, 16146 Genova, Italy
| | - Alejandro J. Müller
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry,
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizábal, 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE,
Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
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5
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El-Okaily MS, Mostafa AA, Dulnik J, Denis P, Sajkiewicz P, Mahmoud AA, Dawood R, Maged A. Nanofibrous Polycaprolactone Membrane with Bioactive Glass and Atorvastatin for Wound Healing: Preparation and Characterization. Pharmaceutics 2023; 15:1990. [PMID: 37514176 PMCID: PMC10384954 DOI: 10.3390/pharmaceutics15071990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
Skin wound healing is one of the most challenging processes for skin reconstruction, especially after severe injuries. In our study, nanofiber membranes were prepared for wound healing using an electrospinning process, where the prepared nanofibers were made of different weight ratios of polycaprolactone and bioactive glass that can induce the growth of new tissue. The membranes showed smooth and uniform nanofibers with an average diameter of 118 nm. FTIR and XRD results indicated no chemical interactions of polycaprolactone and bioactive glass and an increase in polycaprolactone crystallinity by the incorporation of bioactive glass nanoparticles. Nanofibers containing 5% w/w of bioactive glass were selected to be loaded with atorvastatin, considering their best mechanical properties compared to the other prepared nanofibers (3, 10, and 20% w/w bioactive glass). Atorvastatin can speed up the tissue healing process, and it was loaded into the selected nanofibers using a dip-coating technique with ethyl cellulose as a coating polymer. The study of the in vitro drug release found that atorvastatin-loaded nanofibers with a 10% coating polymer revealed gradual drug release compared to the non-coated nanofibers and nanofibers coated with 5% ethyl cellulose. Integration of atorvastatin and bioactive glass with polycaprolactone nanofibers showed superior wound closure results in the human skin fibroblast cell line. The results from this study highlight the ability of polycaprolactone-bioactive glass-based fibers loaded with atorvastatin to stimulate skin wound healing.
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Affiliation(s)
- Mohamed S El-Okaily
- Refractories, Ceramics and Building Materials Department (Biomaterials Group), National Research Centre (NRC), El Bohouth St., Dokki, Giza 12622, Egypt
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre (NRC), Giza 12622, Egypt
| | - Amany A Mostafa
- Refractories, Ceramics and Building Materials Department (Biomaterials Group), National Research Centre (NRC), El Bohouth St., Dokki, Giza 12622, Egypt
- Nanomedicine & Tissue Engineering Lab., Medical Research Center of Excellence (MRCE), National Research Centre (NRC), Giza 12622, Egypt
| | - Judyta Dulnik
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Piotr Denis
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Paweł Sajkiewicz
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warsaw, Poland
| | - Azza A Mahmoud
- Pharmaceutics and Pharmaceutical Technology Department, Faculty of Pharmacy, Future University in Egypt, New Cairo 11835, Egypt
| | - Reham Dawood
- Microbial Biotechnology Department, Biotechnology Research Institute, National Research Centre, EL Bohouth St., Dokki, Giza 12622, Egypt
| | - Amr Maged
- Pharmaceutics and Pharmaceutical Technology Department, Faculty of Pharmacy, Future University in Egypt, New Cairo 11835, Egypt
- Pharmaceutical Factory, Faculty of Pharmacy, Future University in Egypt, New Cairo 11835, Egypt
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6
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Bowers DT, McCulloch ME, Brown JL. Evaluation of focal adhesion mediated subcellular curvature sensing in response to engineered extracellular matrix. Biointerphases 2023; 18:021004. [PMID: 37019799 PMCID: PMC10079328 DOI: 10.1116/6.0002440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/24/2023] [Accepted: 03/14/2023] [Indexed: 04/07/2023] Open
Abstract
Fibril curvature is bioinstructive to attached cells. Similar to natural healthy tissues, an engineered extracellular matrix can be designed to stimulate cells to adopt desired phenotypes. To take full advantage of the curvature control in biomaterial fabrication methodologies, an understanding of the response to fibril subcellular curvature is required. In this work, we examined morphology, signaling, and function of human cells attached to electrospun nanofibers. We controlled curvature across an order of magnitude using nondegradable poly(methyl methacrylate) (PMMA) attached to a stiff substrate with flat PMMA as a control. Focal adhesion length and the distance of maximum intensity from the geographic center of the vinculin positive focal adhesion both peaked at a fiber curvature of 2.5 μm-1 (both ∼2× the flat surface control). Vinculin experienced slightly less tension when attached to nanofiber substrates. Vinculin expression was also more affected by a subcellular curvature than structural proteins α-tubulin or α-actinin. Among the phosphorylation sites we examined (FAK397, 576/577, 925, and Src416), FAK925 exhibited the most dependance on the nanofiber curvature. A RhoA/ROCK dependance of migration velocity across curvatures combined with an observation of cell membrane wrapping around nanofibers suggested a hybrid of migration modes for cells attached to fibers as has been observed in 3D matrices. Careful selection of nanofiber curvature for regenerative engineering scaffolds and substrates used to study cell biology is required to maximize the potential of these techniques for scientific exploration and ultimately improvement of human health.
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Affiliation(s)
- Daniel T. Bowers
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Mary Elizabeth McCulloch
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
| | - Justin L. Brown
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802
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7
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Cruz-Salas CN, Prieto C, Calderón-Santoyo M, Lagarón JM, Ramos-Hernández JA, Ragazzo-Sánchez JA. Antimutagenic and Antiproliferative Activity of the Coccoloba uvifera L. Extract Loaded in Nanofibers of Gelatin/Agave Fructans Elaborated by Electrospinning. Anticancer Agents Med Chem 2022; 22:2788-2798. [PMID: 35297353 DOI: 10.2174/1871520622666220316161957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/09/2021] [Accepted: 12/22/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND The Coccoloba uvifera L. species is currently considered an important source of compounds of high biological value such as lupeol, this is related to different biological activities of importance to human health. OBJECTIVE The objective of this study was to encapsulate the C. uvifera extract in nanofibers made with the biopolymers gelatin (G)/high-grade polymerization agave fructans (HDPAF) in the proportions 1:0, 1:1, 1:2, 1:3 and 0:1, through the electrospinning process, in addition to evaluating the antimutagenic and antiproliferative properties of the encapsulated extract. METHOD The physicochemical characteristics of the nanofibers were evaluated, as well as the antiproliferative and antimutagenic activities of the encapsulated and unencapsulated extract. SEM evaluation shows nanofibers of smooth, continuous morphology and nanometric size (50-250 nm). The TGA, FTIR-ATR, HPLC-MS analyzes reveal the presence of the extract in the nanofibers. RESULTS The extract did not show a mutagenic effect during the development of the Ames test, on the other hand, the MTT test showed the antiproliferative effect at the concentrations of 50 and 100 µg/mL of extract. CONCLUSION the extract of C. uvifera loaded in nanofibers elaborated by electrospinning with the G/HDPAF biopolymers, conserves its antimutagenic and antiproliferative properties.
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Affiliation(s)
- Carla N Cruz-Salas
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico 2595, Tepic C.P. 63175, Nayarit, Mexico
| | - Cristina Prieto
- Novel Materials and Nanotechnology Group, IATA-CSIC, Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain
| | - Montserrat Calderón-Santoyo
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico 2595, Tepic C.P. 63175, Nayarit, Mexico
| | - José M Lagarón
- Novel Materials and Nanotechnology Group, IATA-CSIC, Calle Catedrático Agustín Escardino Benlloch 7, 46980 Paterna, Spain
| | - Jorge Alberto Ramos-Hernández
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico 2595, Tepic C.P. 63175, Nayarit, Mexico
| | - Juan Arturo Ragazzo-Sánchez
- Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico 2595, Tepic C.P. 63175, Nayarit, Mexico
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8
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Kołbuk D, Ciechomska M, Jeznach O, Sajkiewicz P. Effect of crystallinity and related surface properties on gene expression of primary fibroblasts. RSC Adv 2022; 12:4016-4028. [PMID: 35425452 PMCID: PMC8980997 DOI: 10.1039/d1ra07237d] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/30/2021] [Indexed: 12/13/2022] Open
Abstract
The biomaterial-cells interface is one of the most fundamental issues in tissue regeneration. Despite many years of scientific work, there is no clear answer to what determines the desired adhesion of cells and the synthesis of ECM proteins. Crystallinity is a characteristic of the structure that influences the surface and bulk properties of semicrystalline polymers used in medicine. The crystallinity of polycaprolactone (PCL) was varied by changing the molecular weight of the polymer and the annealing procedure. Measurements of surface free energy showed differences related to substrate crystallinity. Additionally, the water contact angle was determined to characterise surface wettability which was crucial in the analysis of protein absorption. X-ray photoelectron spectroscopy was used to indicate oxygen bonds amount on the surface. Finally, the impact of the crystallinity, and related properties were demonstrated on dermal fibroblasts' response. Cellular proliferation and expression of selected genes: α-SMA, collagen I, TIMP, integrin were analysed.
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Affiliation(s)
- Dorota Kołbuk
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5b 02-106 Warsaw Poland
| | - Marzena Ciechomska
- National Institute of Geriatrics, Rheumatology and Rehabilitation Spartańska 1 02-637 Warsaw Poland
| | - Oliwia Jeznach
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5b 02-106 Warsaw Poland
| | - Paweł Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences Pawińskiego 5b 02-106 Warsaw Poland
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9
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Conductive polycaprolactone/gelatin/polyaniline nanofibres as functional scaffolds for cardiac tissue regeneration. REACT FUNCT POLYM 2022. [DOI: 10.1016/j.reactfunctpolym.2021.105064] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Reid JA, McDonald A, Callanan A. Electrospun fibre diameter and its effects on vascular smooth muscle cells. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 32:131. [PMID: 34625853 PMCID: PMC8500900 DOI: 10.1007/s10856-021-06605-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/10/2021] [Indexed: 05/05/2023]
Abstract
Bypass grafting is a technique used in the treatment of vascular disease, which is currently the leading cause of mortality worldwide. While technology has moved forward over the years, synthetic grafts still show significantly lower rates of patency in small diameter bypass operations compared to the gold standard (autologous vessel grafts). Scaffold morphology plays an important role in vascular smooth muscle cell (VSMC) performance, with studies showing how fibre alignment and surface roughness can modulate phenotypic and genotypic changes. Herein, this study has looked at how the fibre diameter of electrospun polymer scaffolds can affect the performance of seeded VSMCs. Four different scaffolds were electrospun with increasing fibre sizes ranging from 0.75 to 6 µm. Culturing VSMCs on the smallest fibre diameter (0.75 µm) lead to a significant increase in cell viability after 12 days of culture. Furthermore, interesting trends were noted in the expression of two key phenotypic genes associated with mature smooth muscle cell contractility (myocardin and smooth muscle alpha-actin 1), whereby reducing the fibre diameter lead to relative upregulations compared to the larger fibre diameters. These results showed that the smallest (0.75 µm) fibre diameter may be best suited for the culture of VSMCs with the aim of increasing cell proliferation and aiding cell maturity.
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Affiliation(s)
| | - Alison McDonald
- School of Engineering, The University of Edinburgh, Edinburgh, UK
| | - Anthony Callanan
- School of Engineering, The University of Edinburgh, Edinburgh, UK.
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11
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Atehortua C, Montoya Y, García A, Bustamante J. Hemolytic, Biocompatible, and Functional Effect of Cellularized Polycaprolactone-Hydrolyzed Collagen Electrospun Membranes for Possible Application as Vascular Implants. J Biomed Nanotechnol 2021; 17:1184-1198. [PMID: 34167631 DOI: 10.1166/jbn.2021.3087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In search of bioactive vascular prostheses that exhibit greater biocompatibility through the combination of natural and synthetic polymers, tissue engineering from a biomimetic perspective has proposed the development of three-dimensional structures as therapeutic strategies in the field of cardiovascular medicine. Techniques such as electrospinning allow obtaining of scaffolds that emulate the microarchitecture of the extracellular matrix of native vessels; thus, this study aimed to evaluate the biological influence of microarchitecture on polycaprolactone (PCL) and hydrolyzed collagen (H-Col) electrospun scaffolds, which have a homogeneous (microscale) or heterogeneous (micro-nanoscale) fibrillar structure. The hemolytic, biocompatible, and functional effect of the scaffolds in interaction with an in vitro fibroblast model was determined, in view of its potential use for vascular implants. Scaffolds were characterized by scanning electron microscopy and atomic force microscopy, Fourier transform infrared spectroscopy, wettability, static permeability, tensile test, and degradation. In addition, direct and indirect 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assays were used to identify the cell viability of fibroblasts, fluorescence assays were performed to establish morphological changes of the cell nuclei, and the hemolytic effect of the scaffolds was calculated. Results showed that ethanol-treated biocompositescaffolds exhibited mass losses lower than 6.65% and slow wettability and absorption, resulting from an increase in secondary structures that contribute to the crystalline phase of H-Col. The scaffolds demonstrated stable degradation in saline during the incubation period because of the availability of soluble structures in aqueous media, and the inclusion of H-Col increased the elastic properties of the scaffold. As regards hemocompatibility, the scaffolds had hemolysis levels lower than 1%; moreover, in terms of biocompatible characteristics, scaffolds exhibited good adhesion, proliferation, and cell viability and insignificant changes in the circularity of the cell nuclei. However, scaffolds with homogeneous fibers showed cell agglomerates after 48 h of interaction. By contrast, permeability decreased as the incubation period progressed, because of the cellularization of the three-dimensional structure. In conclusion, multiscale scaffolds could exhibit a suitable behavior as a bioactive small-diameter vascular implant.
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Affiliation(s)
- Camilo Atehortua
- Grupo de Dinámica Cardiovascular, Centro de Bioingeniería, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Yuliet Montoya
- Grupo de Dinámica Cardiovascular, Centro de Bioingeniería, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
| | - Alejandra García
- Laboratorio de Síntesis y Modificación de Nanoestructuras y Materiales Bidimensionales, Centro de Investigación en Materiales Avanzados S.C. Parque PIIT Alianza Norte 202, Apodaca 66600, México
| | - John Bustamante
- Grupo de Dinámica Cardiovascular, Centro de Bioingeniería, Universidad Pontificia Bolivariana, Medellín 050031, Colombia
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12
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Elkhoury K, Morsink M, Tahri Y, Kahn C, Cleymand F, Shin SR, Arab-Tehrany E, Sanchez-Gonzalez L. Synthesis and characterization of C2C12-laden gelatin methacryloyl (GelMA) from marine and mammalian sources. Int J Biol Macromol 2021; 183:918-926. [PMID: 33971227 DOI: 10.1016/j.ijbiomac.2021.05.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/15/2021] [Accepted: 05/04/2021] [Indexed: 12/11/2022]
Abstract
Gelatin methacryloyl (GelMA) is widely used for tissue engineering applications as an extracellular matrix (ECM) mimicking scaffold due to its cost-effectiveness, ease of synthesis, and high biocompatibility. GelMA is widely synthesized from porcine skin gelatin, which labors under clinical, religious, and economical restrictions. In order to overcome these limitations, GelMA can be produced from fish skin gelatin, which is eco-friendly as well. Here, we present a comparative study of the physicochemical (structural, thermal, water uptake, swelling, rheological, and mechanical) and biological (cell viability, proliferation, and spreading) properties of porcine and fish skin GelMA with low and high methacrylation degrees, before and after crosslinking, to check whether fish skin can replace porcine skin as the source of GelMA. Porcine and fish skin GelMA presented similar structural, thermal, and water uptake properties prior to crosslinking. However, subsequent to crosslinking, fish skin GelMA hydrogels exhibited a higher mass swelling ratio and a lower elastic and compressive Young's moduli than porcine skin GelMA hydrogels of similar methacrylation level. Both types of GelMA hydrogels showed great biocompatibility toward encapsulated mouse myoblast cells (C2C12), however, improved cell spreading was observed in fish skin GelMA hydrogels, and cell proliferation was only induced in low methacrylated GelMA. These results suggest that fish skin GelMA is a promising substitute for porcine skin GelMA for biomedical applications and that low methacrylated fish skin GelMA can be used as a potential scaffold for skeletal muscle tissue engineering.
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Affiliation(s)
- Kamil Elkhoury
- LIBio, Université de Lorraine, F-54000 Nancy, France; Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Cambridge, United States of America.
| | - Margaretha Morsink
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Cambridge, United States of America; Translational Liver Research, Department of Medical Cell BioPhysics, Technical Medical Centre, Faculty of Science and Technology, University of Twente, Enschede, the Netherlands.
| | - Yasmina Tahri
- LIBio, Université de Lorraine, F-54000 Nancy, France
| | - Cyril Kahn
- LIBio, Université de Lorraine, F-54000 Nancy, France.
| | - Franck Cleymand
- Institut Jean Lamour, CNRS-Université de Lorraine, F-54000 Nancy, France.
| | - Su Ryon Shin
- Division of Engineering in Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Cambridge, United States of America.
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13
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Mete D, Göktaş G, Şanlı-Mohamed G. Fabrication and in vitro evaluation of thermally cross-linked gelatin nanofibers for drug delivery applications. Prep Biochem Biotechnol 2021; 52:11-18. [PMID: 33775209 DOI: 10.1080/10826068.2021.1901232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
In this study, four different nanofibers consisting of gelatin (Gel), doxorubicin (DOX) with gel (DOX@Gel), a composite of gel with poly(ethylene glycol) (PEGylated-gel), and DOX@PEGylated-gel were fabricated. Subsequently, the nanofibers were thermally cross-linked in order to offer a stable and biocompatible alternative for the biological applications of nanofibers such as drug delivery and tissue engineering. Nanofibers were characterized by scanning electron microscopy, Fourier Transform-Infrared Spectroscopy (FT-IR), and confocal microscopy. The formation of smooth, continuous, and uniform nanofibers was observed and the addition of PEG resulted in an increase whereas the incorporation of DOX into nanofibers had no significant change in the diameter of nanofibers. Crosslinking also enlarged the diameter of all nanofibers and the most dramatic increase was observed 53% by DOX@PEGylated-gel. Afterward, the biological performance of the nanofibers was investigated by drug release profile, cytotoxicity on A549 cell line as well as antimicrobial activity with E. coli and S. aureus. The results indicate an enhanced drug release profile, moderate antimicrobial activity, and reasonable cytotoxic efficiency for thermally cross-linked nanofibers compared to uncross-linked nanofibers.
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Affiliation(s)
- Derya Mete
- Department of Chemistry, İzmir Institute of Technology, İzmir, Turkey
| | - Gözde Göktaş
- Department of Chemistry, İzmir Institute of Technology, İzmir, Turkey
| | - Gülşah Şanlı-Mohamed
- Department of Chemistry, İzmir Institute of Technology, İzmir, Turkey.,Department of Biotechnology and Bioengineering, İzmir Institute of Technology, İzmir, Turkey
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14
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Faezeh Ghahreman, Semnani D, Khorasani SN, Varshosaz J, Khalili S, Mohammadi S, Kaviannasab E. Polycaprolactone–Gelatin Membranes in Controlled Drug Delivery of 5-Fluorouracil. POLYMER SCIENCE SERIES A 2020. [DOI: 10.1134/s0965545x20330020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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15
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Tien ND, Maurya AK, Fortunato G, Rottmar M, Zboray R, Erni R, Dommann A, Rossi RM, Neels A, Sadeghpour A. Responsive Nanofibers with Embedded Hierarchical Lipid Self-Assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:11787-11797. [PMID: 32936649 DOI: 10.1021/acs.langmuir.0c01487] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
We introduce the design and study of a hybrid electrospun membrane with a dedicated nanoscale structural hierarchy for controlled functions in the biomedical domain. The hybrid system comprises submicrometer-sized internally self-assembled lipid nanoparticles (ISAsomes or mesosomes) embedded into the electrospun membrane with a nanofibrous polymer network. The internal structure of ISAsomes, studied by small-angle X-ray scattering (SAXS) and electron microscopy, demonstrated a spontaneous response to variations in the environmental conditions as they undergo a bicontinuous inverse cubic phase (cubosomes) in solution to a crystalline lamellar phase in the polymer membrane; nevertheless, this phase reorganization is reversible. As revealed by in situ SAXS measurements, if the membrane was put in contact with aqueous media, the cubic phase reappeared and submicrometer-sized cubosomes were released upon dissolution of the nanofibers. Furthermore, the hybrid membranes exhibited a specific anisotropic feature and morphological response under an external strain. While nanofibers were aligned under external strain in the microscale, the semicrystalline domains from the polymer phase were positioned perpendicular to the lamellae of the lipid phase in the nanoscale. The fabricated membranes and their spontaneous responses offer new strategies for the development of structure-controlled functions in electrospun nanofibers for biomedical applications, such as drug delivery or controlled interactions with biointerfaces.
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Affiliation(s)
- Nguyen D Tien
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
| | - Anjani K Maurya
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
- Cellular and Biomedical Sciences, Faculty of Medicine, University of Bern, Bern CH-3012, Switzerland
| | - Giuseppino Fortunato
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
| | - Markus Rottmar
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
| | - Robert Zboray
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
| | - Rolf Erni
- Electron Microscopy Center, Empa, Swiss Federal Laboratories for Materials Science and Technology, Dübendorf CH-8600, Switzerland
| | - Alex Dommann
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
- Cellular and Biomedical Sciences, Faculty of Medicine, University of Bern, Bern CH-3012, Switzerland
| | - René M Rossi
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
| | - Antonia Neels
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
- Department of Chemistry, University of Fribourg, Fribourg 79085, Switzerland
| | - Amin Sadeghpour
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, St. Gallen CH-9014, Switzerland
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16
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The effect of diameter of fibre on formation of hydrogen bonds and mechanical properties of 3D-printed PCL. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 114:111072. [PMID: 32993993 DOI: 10.1016/j.msec.2020.111072] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 04/10/2020] [Accepted: 05/07/2020] [Indexed: 12/18/2022]
Abstract
Fused Deposition Modelling (FDM) technique has been widely utilized in fabrication of 3D porous scaffolds for tissue engineering (TE) applications. Surprisingly, although there are many publications devoted to the architectural features of the 3D scaffolds fabricated by the FDM, none of them give us evident information about the impact of the diameter of the fibres on material properties. Therefore, the aim of this study was to investigate, for the first time, the effect of the diameter of 3D-printed PCL fibres on variations in their microstructure and resulting mechanical behaviour. The fibres made of poly(ε-caprolactone) (PCL) were extruded through commonly used types of nozzles (inner diameter ranging from 0.18 mm to 1.07 mm) by means of FDM technique. Static tensile test and atomic force microscopy working in force spectroscopy mode revealed strong decrease in the Young's modulus and yield strength with increasing fibre diameter in the investigated range. To explain this phenomenon, we conducted differential scanning calorimetry, wide-angle X-ray-scattering, Fourier-transform infrared spectroscopy, infrared and polarized light microscopy imaging. The obtained results clearly showed that the most prominent effect on the obtained microstructures and mechanical properties had different cooling and shear rates during fabrication process causing changes in supramolecular interactions of PCL. The observed fibre size-dependent formation of hydrogen bonds affected the crystalline structure and its stability. Summarising, this study clearly demonstrates that the diameter of 3D-printed fibres has a strong effect on obtained microstructure and mechanical properties, therefore should be taken into consideration during design of the 3D TE scaffolds.
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17
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3D printing of silk microparticle reinforced polycaprolactone scaffolds for tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 118:111433. [PMID: 33255027 DOI: 10.1016/j.msec.2020.111433] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/19/2020] [Accepted: 08/21/2020] [Indexed: 12/13/2022]
Abstract
Polycaprolactone (PCL) scaffolds have been widely investigated for tissue engineering applications, however, they exhibit poor cell adhesion and mechanical properties. Subsequently, PCL composites have been produced to improve the material properties. This study utilises a natural material, Bombyx mori silk microparticles (SMP) prepared by milling silk fibre, to produce a composite to enhance the scaffolds properties. Silk is biocompatible and biodegradable with excellent mechanical properties. However, there are no studies using SMPs as a reinforcing agent in a 3D printed thermoplastic polymer scaffold. PCL/SMP (10, 20, 30 wt%) composites were prepared by melt blending. Rheological analysis showed that SMP loading increased the shear thinning and storage modulus of the material. Scaffolds were fabricated using a screw-assisted extrusion-based additive manufacturing system. Scanning electron microscopy and X-ray microtomography was used to determine scaffold morphology. The scaffolds had high interconnectivity with regular printed fibres and pore morphologies within the designed parameters. Compressive mechanical testing showed that the addition of SMP significantly improved the compressive Young's modulus of the scaffolds. The scaffolds were more hydrophobic with the inclusion of SMP which was linked to a decrease in total protein adsorption. Cell behaviour was assessed using human adipose derived mesenchymal stem cells. A cytotoxic effect was observed at higher particle loading (30 wt%) after 7 days of culture. By day 21, 10 wt% loading showed significantly higher cell metabolic activity and proliferation, high cell viability, and cell migration throughout the scaffold. Calcium mineral deposition was observed on the scaffolds during cell culture. Large calcium mineral deposits were observed at 30 wt% and smaller calcium deposits were observed at 10 wt%. This study demonstrates that SMPs incorporated into a PCL scaffold provided effective mechanical reinforcement, improved the rate of degradation, and increased cell proliferation, demonstrating potential suitability for bone tissue engineering applications.
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18
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Wang X, Zhu J, Sun B, Jin Q, Li H, Xia C, Wang H, Mo X, Wu J. Harnessing electrospun nanofibers to recapitulate hierarchical fibrous structures of meniscus. J Biomed Mater Res B Appl Biomater 2020; 109:201-213. [DOI: 10.1002/jbm.b.34692] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/03/2020] [Accepted: 07/09/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaoyu Wang
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Jingjing Zhu
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Binbin Sun
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Qiu Jin
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Haiyan Li
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Changlei Xia
- Co‐Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering Nanjing Forestry University Nanjing PR China
| | - Hongsheng Wang
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Xiumei Mo
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
| | - Jinglei Wu
- Key Laboratory of Science and Technology of Eco‐Textile, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai PR China
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine Shanghai PR China
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19
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Kolbuk D, Jeznach O, Wrzecionek M, Gadomska-Gajadhur A. Poly(Glycerol Succinate) as an Eco-Friendly Component of PLLA and PLCL Fibres towards Medical Applications. Polymers (Basel) 2020; 12:E1731. [PMID: 32756398 PMCID: PMC7464260 DOI: 10.3390/polym12081731] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/28/2020] [Accepted: 07/29/2020] [Indexed: 02/06/2023] Open
Abstract
This study was conducted as a first step in obtaining eco-friendly fibres for medical applications using a synthesised oligomer poly(glycerol succinate) (PGSu) as an additive for synthetic poly(L-lactic acid) (PLLA) and poly (L-lactide-co-caprolactone) (PLCL). The effects of the oligomer on the structure formation, morphology, crystallisation behaviour, and mechanical properties of electrospun bicomponent fibres were investigated. Nonwovens were investigated by means of scanning electron microscopy (SEM), wide angle X-ray scattering (WAXS), differential scanning calorimetry (DSC), and mechanical testing. The molecular structure of PLLA fibres is influenced by the presence of PGSu mainly acting as an enhancer of molecular orientation. In the case of semicrystalline PLCL, chain mobility was enhanced by the presence of PGSu molecules, and the crystallinity of bicomponent fibres increased in relation to that of pure PLCL. The mechanical properties of bicomponent fibres were influenced by the level of PGSu present and the extent of crystal formation of the main component. An in vitro study conducted using L929 cells confirmed the biocompatible character of all bicomponent fibres.
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Affiliation(s)
- Dorota Kolbuk
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B Street, 02-106 Warsaw, Poland;
| | - Oliwia Jeznach
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B Street, 02-106 Warsaw, Poland;
| | - Michał Wrzecionek
- Faculty of Chemistry of Warsaw University of Technology, Noakowskiego 3 Street, 00-664 Warsaw, Poland;
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20
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Veras FF, Ritter AC, Roggia I, Pranke P, Pereira CN, Brandelli A. Natamycin-loaded electrospun poly(ε-caprolactone) nanofibers as an innovative platform for antifungal applications. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2912-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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21
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Heidari M, Bahrami SH, Ranjbar-Mohammadi M, Milan PB. Smart electrospun nanofibers containing PCL/gelatin/graphene oxide for application in nerve tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109768. [PMID: 31349413 DOI: 10.1016/j.msec.2019.109768] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 05/05/2019] [Accepted: 05/17/2019] [Indexed: 12/21/2022]
Abstract
Currently graphene-doped electrospun scaffolds have been a matter of great interest to be exploited in biomedical fields such as tissue engineering and drug delivery applications. The main objective of this paper is to evaluate the effect of graphene on biological properties of PCL/gelatin nanofibrous mats. SEM analysis was conducted to investigate the morphology of the electrospun nanofibers. The in-vitro cellular proliferation of PC12 cells on nanofibrous web was also investigated. Electrospun PCL/gelatin/graphene nanofibrous mats exhibited 99% antibacterial properties against gram-positive and gram-negative bacteria. Drug release studies indicated that the π-π stacking interaction between TCH and graphene has led to the far better controlled release of TCH from electrospun PCL/gelatin/graphene compared to PCL/gelatin nanofibrous scaffolds. These superior properties along with an improvement in hydrophilicity and biodegradation features has made the nanofibers a promising candidate to be used as electrically conductive scaffolds in neural tissue engineering as well as controlled drug delivery.
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Affiliation(s)
- Mina Heidari
- Textile Engineering Department of Amirkabir University of Technology Tehran, Iran
| | - S Hajir Bahrami
- Textile Engineering Department of Amirkabir University of Technology Tehran, Iran.
| | - M Ranjbar-Mohammadi
- Department of Textile Engineering, Faculty Engineering, University of Bonab, Bonab, Iran
| | - P B Milan
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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22
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Alves P, Santos M, Mendes S, P Miguel S, D de Sá K, S D Cabral C, J Correia I, Ferreira P. Photocrosslinkable Nanofibrous Asymmetric Membrane Designed for Wound Dressing. Polymers (Basel) 2019; 11:E653. [PMID: 30974796 PMCID: PMC6523099 DOI: 10.3390/polym11040653] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/21/2019] [Accepted: 04/08/2019] [Indexed: 12/17/2022] Open
Abstract
Recently, the biomedical scientists who are working in the skin regeneration area have proposed asymmetric membranes as ideal wound dressings, since they are able to reproduce both layers of skin and improve the healing process as well as make it less painful. Herein, an electrospinning technique was used to produce new asymmetric membranes. The protective layer was composed of a blending solution between polycaprolactone and polylactic acid, whereas the underlying layer was comprised of methacrylated gelatin and chitosan. The chemical/physical properties, the in vitro hemo- and biocompatibility of the nanofibrous membranes were evaluated. The results obtained reveal that the produced membranes exhibited a wettability able to provide a moist environment at wound site. Moreover, the membranes' hemocompatibility and fibroblast cell adhesion, spreading and proliferation at the surface of the membranes were also noticed in the in vitro assays. Such results highlight the suitability of these asymmetric membranes for wound dressing applications.
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Affiliation(s)
- Patrícia Alves
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
| | - Marta Santos
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
| | - Sabrina Mendes
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
| | - Sónia P Miguel
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Kevin D de Sá
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Cátia S D Cabral
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Ilídio J Correia
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
- CICS-UBI, Health Sciences Research Center, Universidade da Beira Interior, P-6200 506 Covilhã, Portugal.
| | - Paula Ferreira
- CIEPQPF, Department of Chemical Engineering, Universidade de Coimbra, P-3030 790 Coimbra, Portugal.
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23
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Design of polyurethane fibers: Relation between the spinning technique and the resulting fiber topology. J Appl Polym Sci 2019. [DOI: 10.1002/app.47706] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Ghasemkhah F, Latifi M, Hadjizadeh A, Shokrgozar MA. Potential core-shell designed scaffolds with a gelatin-based shell in achieving controllable release rates of proteins for tissue engineering approaches. J Biomed Mater Res A 2019; 107:1393-1405. [PMID: 30724475 DOI: 10.1002/jbm.a.36653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/18/2019] [Accepted: 02/04/2019] [Indexed: 11/12/2022]
Abstract
The biomaterials design as core-shell structures opens a new door to the release of susceptible biomolecules in a controllable manner and enables to place natural biomaterials as shell layers to impart the effective biofunctional features at surfaces. In this study, core-shell designed scaffolds were prepared using coaxial electrospinning with hybrid of gelatin (GT)/polycaprolactone (PCL) at different weight ratios as their shell and protein solution as their core, followed by cross-linking to impart controllable release rates, tunable mechanical properties, and enhanced cytocompatibility. SEM, FM, and TEM confirmed the successful production of uniform core-shell nanofibers and homogeneous protein distribution. Results showed that an increase in GT proportion in the shell resulted in a decrease in fiber diameter, an increase of Young's modulus, and an intense burst release of BSA 0.2% which could be controlled through cross-linking. The mechanical tests revealed that the GT/PCL combining and cross-linking improved mechanical properties which correlated with an increase in spreading and proliferation of HUVECs. A slight burst release was also detected from BSA 0.05% and EGF encapsulated GT73P-cross-linked scaffold which demonstrated their applicability for a controlled release of dilute proteins. We were able to successfully incorporate two types of protein with different concentrations without supporting polymer into the GT shell to provide scaffolds possessing tunable mechanical properties and controllable release rates through blending with PCL at different ratios and/or cross-linking. These findings are promising to promote delivery systems of angiogenic growth factors that are needed a sustained release with different rates at each angiogenesis stage. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2019.
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Affiliation(s)
- Farzaneh Ghasemkhah
- Nanotechnology institute, Amirkabir University of Technology, Tehran, Iran.,Textile Engineering Department, Textile Excellence & Research Centers, Amirkabir University of Technology, Tehran, Iran
| | - Masoud Latifi
- Textile Engineering Department, Textile Excellence & Research Centers, Amirkabir University of Technology, Tehran, Iran
| | - Afra Hadjizadeh
- Biomedical Engineering Department, Amirkabir University of Technology, Tehran, Iran
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25
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Jana S, Lerman A. Behavior of valvular interstitial cells on trilayered nanofibrous substrate mimicking morphologies of heart valve leaflet. Acta Biomater 2019; 85:142-156. [PMID: 30528607 PMCID: PMC6347416 DOI: 10.1016/j.actbio.2018.12.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Revised: 11/01/2018] [Accepted: 12/04/2018] [Indexed: 10/27/2022]
Abstract
Heart valve tissue engineering could be an alternative to the current bioprosthetic heart valve that faces limitations especially in pediatric patients. However, heart valve tissue engineering has remained challenging because leaflets - the primary component of a heart valve - have three layers with three diverse orientations - circumferential, random and radial, respectively. In order to mimic the orientations, we first designed three novel collectors to fabricate three nanofibrous layers with those orientations from a polymeric biomaterial in an electrospinning system. Then, we devised a novel direct electrospinning technique to develop a unified trilayered nanofibrous (TN) substrate comprising those oriented layers. The TN substrate supported the growth and orientations of seeded porcine valvular interstitial cells (PVICs) and their deposited collagen fibrils. After one month culture, the obtained trilayered tissue construct (TC) exhibited increased tensile properties over its TN substrate. Most importantly, the developed TC did not show any sign of shrinkage. Gene expression pattern of the PVICs indicated the developing stage of the TC. Their protein expression pattern was quite similar to that of leaflets. STATEMENT OF SIGNIFICANCE: This manuscript talks about development of a novel trilayered nanofibrous substrate mimicking the morphologies of a heart valve leaflet. It also describes culturing of valvular interstitial cells that reside in a leaflet, in the substrate and compares the behavior of the cultured cells with that in native leaflets in terms cell morphology, protein deposition and its orientation, and molecular signature. This study builds the groundwork for our future trilayered, tissue-engineered leaflet development. This research article would be of great interest to investigators and researchers in the field of cardiovascular tissue engineering especially in cardiac valve tissue engineering through biomaterial-based tissue engineering.
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Affiliation(s)
- Soumen Jana
- Division of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA.
| | - Amir Lerman
- Division of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
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Kijeńska-Gawrońska E, Bolek T, Bil M, Swieszkowski W. Alignment and bioactive molecule enrichment of bio-composite scaffolds towards peripheral nerve tissue engineering. J Mater Chem B 2019. [DOI: 10.1039/c9tb00367c] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Providing topographical cues along with chemical and biological factors is essential for biomimetic scaffolds applied in nerve tissue engineering.
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Affiliation(s)
- Ewa Kijeńska-Gawrońska
- Materials Design Division
- Faculty of Materials Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Tomasz Bolek
- Materials Design Division
- Faculty of Materials Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Monika Bil
- Materials Design Division
- Faculty of Materials Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Wojciech Swieszkowski
- Materials Design Division
- Faculty of Materials Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
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Baghersad S, Hajir Bahrami S, Mohammadi MR, Mojtahedi MRM, Milan PB. Development of biodegradable electrospun gelatin/aloe-vera/poly(ε‑caprolactone) hybrid nanofibrous scaffold for application as skin substitutes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:367-379. [DOI: 10.1016/j.msec.2018.08.020] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 07/22/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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Urbanek O, Kołbuk D, Wróbel M. Articular cartilage: New directions and barriers of scaffolds development – review. INT J POLYM MATER PO 2018. [DOI: 10.1080/00914037.2018.1452224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Olga Urbanek
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Dorota Kołbuk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Mikołaj Wróbel
- Ortopedika – Centre for Specialized Surgery, Warsaw, Poland
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Lin WC, Yeh IT, Niyama E, Huang WR, Ebara M, Wu CS. Electrospun Poly(ε-caprolactone) Nanofibrous Mesh for Imiquimod Delivery in Melanoma Therapy. Polymers (Basel) 2018; 10:E231. [PMID: 30966266 PMCID: PMC6415119 DOI: 10.3390/polym10030231] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 02/22/2018] [Accepted: 02/23/2018] [Indexed: 11/16/2022] Open
Abstract
Drug delivery systems (DDS) are commonly employed to administer drug-loaded composites to their therapeutic targets both in vitro and in vivo. Thus, we herein report the study of imiquimod-poly(ε-caprolactone) (IMQ-PCL) nanofibrous meshes for application in melanoma therapy. The preparation route employed was based on the electrospinning technique, with the melanoma cells being cultured on electrospun nanofibrous meshes to study their biocompatibility. All parameters employed, including the flow rate and polymer solution concentration, were examined to gain an improved understanding of the factors influencing the diameter and morphology of the electrospun fibre. The optimised parameters were employed to produce 12 IMQ-PCL nanofibrous meshes with diameters ranging from 100 to 900 nm to the melanoma cell viability. The relationship between the fibrous diameter and the imiquimod release profile was also determined using UV-Vis spectroscopy. In addition, similar results were obtained for the simulated imiquimod release profile obtained by COMSOL Multiphysics®. The IMQ-PCL nanofibrous meshes were found to decrease cell viability by ≥50%, with the number of cells dropping by ~10% over 48 h. As the cell viability was affected by the release of imiquimod, we believe that IMQ-PCL nanofibrous meshes are a promising drug delivery system for application in melanoma therapy.
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Affiliation(s)
- Wei-Chih Lin
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (I-T.Y.); (W.-R.H.)
| | - I-Ting Yeh
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (I-T.Y.); (W.-R.H.)
| | - Eri Niyama
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; (E.N.); (M.E.)
| | - Wan-Rou Huang
- Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (I-T.Y.); (W.-R.H.)
| | - Mitsuhiro Ebara
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan; (E.N.); (M.E.)
| | - Chieh-Shan Wu
- Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung 81362, Taiwan;
- Department of Dermatology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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Rinoldi C, Kijeńska E, Chlanda A, Choinska E, Khenoussi N, Tamayol A, Khademhosseini A, Swieszkowski W. Nanobead-on-string composites for tendon tissue engineering. J Mater Chem B 2018; 6:3116-3127. [DOI: 10.1039/c8tb00246k] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The bead-on-string topography of electrospun nanocomposite scaffolds improves fibroblast response in terms of cell spreading and proliferation.
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Affiliation(s)
- Chiara Rinoldi
- Materials Design Division, Faculty of Material Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Ewa Kijeńska
- Materials Design Division, Faculty of Material Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Adrian Chlanda
- Materials Design Division, Faculty of Material Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Emilia Choinska
- Materials Design Division, Faculty of Material Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
| | - Nabyl Khenoussi
- Laboratoire de Physique et Mécanique Textiles (EA 4365)
- Université de Haute Alsace
- Mulhouse Cedex 68093
- France
| | - Ali Tamayol
- Biomaterials Innovation Research Center
- Department of Medicine
- Brigham and Women's Hospital
- Harvard Medical School
- Boston
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center
- Department of Medicine
- Brigham and Women's Hospital
- Harvard Medical School
- Boston
| | - Wojciech Swieszkowski
- Materials Design Division, Faculty of Material Science and Engineering
- Warsaw University of Technology
- 02-507 Warsaw
- Poland
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Ciulik C, Safari M, Martínez de Ilarduya A, Morales-Huerta JC, Iturrospe A, Arbe A, Müller AJ, Muñoz-Guerra S. Poly(butylene succinate-ran-ε-caprolactone) copolyesters: Enzymatic synthesis and crystalline isodimorphic character. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Basar AO, Castro S, Torres-Giner S, Lagaron JM, Turkoglu Sasmazel H. Novel poly(ε-caprolactone)/gelatin wound dressings prepared by emulsion electrospinning with controlled release capacity of Ketoprofen anti-inflammatory drug. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:459-468. [PMID: 28887998 DOI: 10.1016/j.msec.2017.08.025] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/06/2017] [Accepted: 08/09/2017] [Indexed: 11/19/2022]
Abstract
In the present study, a single and binary Ketoprofen-loaded mats of ultrathin fibers were developed by electrospinning and their physical properties and drug release capacity was analyzed. The single mat was prepared by solution electrospinning of poly(ε-caprolactone) (PCL) with Ketoprofen at a weight ratio of 5wt%. This Ketoprofen-containing PCL solution was also used as the oil phase in a 7:3 (wt/wt) emulsion with gelatin dissolved in acidified water. The resultant stable oil-in-water (O/W) emulsion of PCL-in-gelatin, also containing Ketoprofen at 5wt%, was electrospun to produce the binary mat. Cross-linking process was performed by means of glutaraldehyde vapor on the electrospun binary mat to prevent dissolution of the hydrophilic gelatin phase. The performed characterization indicated that Ketoprofen was successfully embedded in the single and binary electrospun mats, i.e. PCL and PCL/gelatin, and both mats showed high hydrophobicity but poor thermal resistance. In vitro release studies interestingly revealed that, in comparison to the single PCL electrospun mat, the binary PCL/gelatin mat significantly hindered Ketoprofen burst release and exhibited a sustained release capacity of the drug for up to 4days. In addition, the electrospun Ketoprofen-loaded mats showed enhanced attachment and proliferation of L929 mouse fibroblast cells, presenting the binary mat the highest cell growth yield due to its improved porosity. The here-developed electrospun materials clearly show a great deal of potential as novel wound dressings with an outstanding controlled capacity to release drugs.
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Affiliation(s)
- A O Basar
- Department of Metallurgical and Materials Engineering, Atilim University, Incek, Golbasi, 06836 Ankara, Turkey
| | - S Castro
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustin Escardino Benlloch 7, Paterna 46980, Spain
| | - S Torres-Giner
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustin Escardino Benlloch 7, Paterna 46980, Spain
| | - J M Lagaron
- Novel Materials and Nanotechnology Group, Institute of Agrochemistry and Food Technology (IATA), Spanish National Research Council (CSIC), Calle Catedrático Agustin Escardino Benlloch 7, Paterna 46980, Spain.
| | - H Turkoglu Sasmazel
- Department of Metallurgical and Materials Engineering, Atilim University, Incek, Golbasi, 06836 Ankara, Turkey.
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Sang Q, Williams GR, Wu H, Liu K, Li H, Zhu LM. Electrospun gelatin/sodium bicarbonate and poly(lactide-co-ε-caprolactone)/sodium bicarbonate nanofibers as drug delivery systems. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:359-365. [PMID: 28887984 DOI: 10.1016/j.msec.2017.08.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 07/20/2017] [Accepted: 08/02/2017] [Indexed: 12/17/2022]
Abstract
In this work, we report electrospun nanofibers made of model hydrophobic (poly(lactide-co-ε-caprolactone); PLCL) and hydrophilic (gelatin) polymers. We explored the effect on drug release of the incorporation of sodium bicarbonate (SB) into these fibers, using the potent antibacterial agent ciprofloxacin as a model drug. The fibers prepared are smooth and have relatively uniform diameters lying between ca. 600 and 850nm. The presence of ciprofloxacin in the fibers was confirmed using IR spectroscopy. X-ray diffraction showed the drug to be incorporated into the fibers in the amorphous form. In vitro drug release studies revealed that, as expected, more rapid drug release was seen with gelatin fibers than those made of PLCL, and a greater final release percentage was obtained. The inclusion of SB in the gelatin fibers imparts them with pH sensitivity: gelatin/SB fibers showed faster release at pH5 than pH7.4, while fibers without SB gave the same release profiles at both pHs. The PLCL fibers have no pH sensitivity, even when SB was included, as a result of their hydrophobic structure precluding the ingress of solvent. In vitro cell culture studies showed that all the fibers are able to promote cell proliferation. The ciprofloxacin loaded fibers are effective in inhibiting Escherichia coli and Staphylococcus aureus growth in antibacterial tests. Thus, the gelatin-based fibers can be used as pH-responsive drug delivery systems, with potential applications for instance in the treatment of tumor resection sites. Should these become infected, the pH would drop, resulting in ciprofloxacin being released and the infection halted.
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Affiliation(s)
- Qingqing Sang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Huanling Wu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Kailin Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Heyu Li
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Li-Min Zhu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China; Key Laboratory of Science & Technology of Eco-Textiles, Ministry of Education, Donghua University, Shanghai 201620, China.
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Hybrid nanofibers based on poly-caprolactone/gelatin/hydroxyapatite nanoparticles-loaded Doxycycline: Effective anti-tumoral and antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 83:25-34. [PMID: 29208285 DOI: 10.1016/j.msec.2017.08.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/19/2017] [Accepted: 08/02/2017] [Indexed: 11/20/2022]
Abstract
Cancer is one of the leading causes of morbidity and mortality Worldwide, 19.3 million new cancer cases are expected to be identified in 2025. Among the therapeutic arsenal to cancer control one could find the Doxycycline and the nano hydroxyapatite. The Doxycycline (Dox) not only shown antibiotic effect but also exhibits a wide range of pleiotropic therapeutic properties as the control of the invasive and metastatic cancer cells characteristics. The purpose of the present study was to evaluate both cytotoxicity in vitro and antibacterial activity of electrospun Dox-loaded hybrid nanofibrous scaffolds composed by hydroxyapatite nanoparticles (nHA), poly-ε-caprolactone (PCL) and gelatin (Gel) polymers. Both nHA and Dox were dispersed into different PCL/Gel ratios (70:30, 60:40, 50:50wt%) solutions to form electrospun nanofibers. The nHA and Dox/nHA/PCL-Gel hybrid nanofibers were characterized by TEM microscopy. In vitro Dox release behavior from all of these Dox-loaded nHA/PCL-Gel nanofibers showed the same burst release profile due to the high solubility of Gel in the release medium. Antibacterial properties of nanofiber composites were evaluated using Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Porphyromonas gingivalis (P. gingivalis) bacteria. The co-delivery of nHA particles and Dox simultaneously exhibited inhibition of bacterial growth more efficiently than the delivery of either Dox or nHA at the same concentrations, indicating a synergistic effect. The results showed that cancer cell tested had different sensibility to co-delivery system. On the whole, A-431 cells were found exhibited the most pronounced synergistic effect compared to CACO-2 and 4T1 cancer cells. Based on the anticancer as well as the antimicrobial results in this study, the developed Dox/nHA/PCL-Gel composite nanofibers are suitable as a drug delivery system with potential applications in the biomedical fields.
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36
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Han L, Xu H, Wang B, Sui X, Zhang L, Zhong Y, Mao Z. Preparation and characterization of biodegradable poly(ϵ-caprolactone) self-reinforced composites and their crystallization behavior. POLYM INT 2017. [DOI: 10.1002/pi.5413] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Lei Han
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
| | - Hong Xu
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
| | - Bijia Wang
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
| | - Xiaofeng Sui
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
| | - Linping Zhang
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
| | - Yi Zhong
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
| | - Zhiping Mao
- Key Laboratory of Science and Technology of Eco-textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology; Donghua University; Shanghai PR China
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37
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Pavlova ER, Bagrov DV, Kopitsyna MN, Shchelokov DA, Bonartsev AP, Zharkova II, Mahina TK, Myshkina VL, Bonartseva GA, Shaitan KV, Klinov DV. Poly(hydroxybutyrate-co
-hydroxyvalerate) and bovine serum albumin blend prepared by electrospinning. J Appl Polym Sci 2017. [DOI: 10.1002/app.45090] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Elizaveta R. Pavlova
- Federal Research Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency of Russia; 1a Malaya Pirogovskaya Street 119435 Moscow Russian Federation
- Moscow Institute of Physics and Technology; 9 Institutsky Per. 141700 Dolgoprudny Moscow Region Russian Federation
| | - Dmitry V. Bagrov
- Federal Research Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency of Russia; 1a Malaya Pirogovskaya Street 119435 Moscow Russian Federation
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University; 119234 Leninskie gory, 1, Bld. 12 Moscow Russian Federation
| | - Maria N. Kopitsyna
- Bauman Moscow State Technical University; 105005 2-ya Baumanskaya Street, 5 Moscow Russian Federation
| | - Dmitry A. Shchelokov
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University; 119234 Leninskie gory, 1, Bld. 12 Moscow Russian Federation
| | - Anton P. Bonartsev
- A. N. Bach Institute of Biochemistry RAS; Leninsky Avenue, 33-2 119071 Moscow Russian Federation
| | - Irina I. Zharkova
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University; 119234 Leninskie gory, 1, Bld. 12 Moscow Russian Federation
| | - Tatiana K. Mahina
- A. N. Bach Institute of Biochemistry RAS; Leninsky Avenue, 33-2 119071 Moscow Russian Federation
| | - Vera L. Myshkina
- A. N. Bach Institute of Biochemistry RAS; Leninsky Avenue, 33-2 119071 Moscow Russian Federation
| | - Galina A. Bonartseva
- A. N. Bach Institute of Biochemistry RAS; Leninsky Avenue, 33-2 119071 Moscow Russian Federation
| | - Konstantin V. Shaitan
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University; 119234 Leninskie gory, 1, Bld. 12 Moscow Russian Federation
| | - Dmitry V. Klinov
- Federal Research Clinical Center of Physical-Chemical Medicine of the Federal Medical and Biological Agency of Russia; 1a Malaya Pirogovskaya Street 119435 Moscow Russian Federation
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Yazgan G, Dmitriev RI, Tyagi V, Jenkins J, Rotaru GM, Rottmar M, Rossi RM, Toncelli C, Papkovsky DB, Maniura-Weber K, Fortunato G. Steering surface topographies of electrospun fibers: understanding the mechanisms. Sci Rep 2017; 7:158. [PMID: 28279011 PMCID: PMC5427888 DOI: 10.1038/s41598-017-00181-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/13/2017] [Indexed: 11/30/2022] Open
Abstract
A profound understanding of how to tailor surface topographies of electrospun fibers is of great importance for surface sensitive applications including optical sensing, catalysis, drug delivery and tissue engineering. Hereby, a novel approach to comprehend the driving forces for fiber surface topography formation is introduced through inclusion of the dynamic solvent-polymer interaction during fiber formation. Thus, the interplay between polymer solubility as well as computed fiber jet surface temperature changes in function of time during solvent evaporation and the resultant phase separation behavior are studied. The correlation of experimental and theoretical results shows that the temperature difference between the polymer solution jet surface temperature and the dew point of the controlled electrospinning environment are the main influencing factors with respect to water condensation and thus phase separation leading to the final fiber surface topography. As polymer matrices with enhanced surface area are particularly appealing for sensing applications, we further functionalized our nanoporous fibrous membranes with a phosphorescent oxygen-sensitive dye. The hybrid membranes possess high brightness, stability in aqueous medium, linear response to oxygen and hence represent a promising scaffold for cell growth, contactless monitoring of oxygen and live fluorescence imaging in 3-D cell models.
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Affiliation(s)
- Gökçe Yazgan
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, CH-9014, St. Gallen, Switzerland
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, CH-9014, St. Gallen, Switzerland
| | - Ruslan I Dmitriev
- School of Biochemistry and Cell Biology, University College Cork, College Road, Cork, Ireland
| | - Vasundhara Tyagi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, CH-9014, St. Gallen, Switzerland
| | - James Jenkins
- School of Biochemistry and Cell Biology, University College Cork, College Road, Cork, Ireland
| | - Gelu-Marius Rotaru
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, CH-9014, St. Gallen, Switzerland
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-ray Analytics, CH-8600, Dübendorf, Switzerland
| | - Markus Rottmar
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, CH-9014, St. Gallen, Switzerland
| | - René M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, CH-9014, St. Gallen, Switzerland
| | - Claudio Toncelli
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, CH-9014, St. Gallen, Switzerland
| | - Dmitri B Papkovsky
- School of Biochemistry and Cell Biology, University College Cork, College Road, Cork, Ireland
| | - Katharina Maniura-Weber
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, CH-9014, St. Gallen, Switzerland
| | - Giuseppino Fortunato
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Protection and Physiology, CH-9014, St. Gallen, Switzerland.
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39
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Gil-Castell O, Badia J, Strömberg E, Karlsson S, Ribes-Greus A. Effect of the dissolution time into an acid hydrolytic solvent to tailor electrospun nanofibrous polycaprolactone scaffolds. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2016.12.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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40
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Gao S, Guo W, Chen M, Yuan Z, Wang M, Zhang Y, Liu S, Xi T, Guo Q. Fabrication and characterization of electrospun nanofibers composed of decellularized meniscus extracellular matrix and polycaprolactone for meniscus tissue engineering. J Mater Chem B 2017; 5:2273-2285. [DOI: 10.1039/c6tb03299k] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Decellularized meniscus extracellular matrix (DMECM) and polycaprolactone (PCL) were electrospun into nanofibers to make meniscus scaffolds with good mechanical properties.
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Affiliation(s)
- Shuang Gao
- Center for Biomedical Material and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - Weimin Guo
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
| | - Mingxue Chen
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
| | - Zhiguo Yuan
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
| | - Mingjie Wang
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
| | - Yu Zhang
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
| | - Shuyun Liu
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
| | - Tingfei Xi
- Center for Biomedical Material and Tissue Engineering
- Academy for Advanced Interdisciplinary Studies
- Peking University
- Beijing 100871
- China
| | - Quanyi Guo
- Key Lab of Musculoskeletal Trauma & War Injuries
- PLA
- Beijing Key Lab of Regenerative Medicine in Orthopedics
- Chinese PLA General Hospital
- Beijing
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41
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Khalf A, Madihally SV. Recent advances in multiaxial electrospinning for drug delivery. Eur J Pharm Biopharm 2016; 112:1-17. [PMID: 27865991 DOI: 10.1016/j.ejpb.2016.11.010] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/06/2016] [Accepted: 11/01/2016] [Indexed: 12/18/2022]
Abstract
Electrospun fibers have seen an insurgence in biomedical applications due to their unique characteristics. Coaxial and triaxial electrospinning techniques have added new impetus via fabrication of multilayered nano and micro-size fibers. These techniques offer the possibility of forming fibers with features such as blending, reinforced core, porous and hollow structure. The unique fabrication process can be used to tailor the mechanical properties, biological properties and release of various factors, which can potentially be useful in various controlled drug delivery applications. Harvesting these advantages, various polymers and their combinations have been explored in a number of drug delivery and tissue regeneration applications. New advances have shown the requirement of drug-polymer compatibility in addition to drug-solvent compatibility. We summarize recent findings using both hydrophilic and hydrophobic (or lipophilic) drugs in hydrophobic or hydrophilic polymers on release behavior. We also describe the fundamental forces involved during the electrospinning process providing insight to the factors to be considered to form fibers. Also, various modeling efforts on the drug release profiles are summarized. In addition new developments in the immune response to the electrospun fibers, and advances in scale-up issues needed for industrial size manufacturing.
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Affiliation(s)
- Abdurizzagh Khalf
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, United States.
| | - Sundararajan V Madihally
- School of Chemical Engineering, Oklahoma State University, 420 Engineering North, Stillwater, OK 74078, United States.
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42
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Surface modification of electrospun fibres for biomedical applications: A focus on radical polymerization methods. Biomaterials 2016; 106:24-45. [DOI: 10.1016/j.biomaterials.2016.08.011] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 08/05/2016] [Accepted: 08/08/2016] [Indexed: 12/18/2022]
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43
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Dulnik J, Denis P, Sajkiewicz P, Kołbuk D, Choińska E. Biodegradation of bicomponent PCL/gelatin and PCL/collagen nanofibers electrospun from alternative solvent system. Polym Degrad Stab 2016. [DOI: 10.1016/j.polymdegradstab.2016.05.022] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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44
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Xu S, Xia J, Ye S, Zhao M, Wang B, Yang L, Wu J, Fu S. Preparation and characterization of electrospun poly(ε-caprolactone)-pluronic-poly(ε-caprolactone)-based polyurethane nanofibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.43643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Shan Xu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Jiyi Xia
- Department of Science and Technology; Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Sujuan Ye
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Ming Zhao
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Biqiong Wang
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Linglin Yang
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Jingbo Wu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
| | - Shaozhi Fu
- Department of Oncology; The First Affiliated Hospital of Sichuan Medical University, Sichuan Medical University; Luzhou 646000 People's Republic of China
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45
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Kijeńska E, Zhang S, Prabhakaran MP, Ramakrishna S, Swieszkowski W. Nanoengineered biocomposite tricomponent polymer based matrices for bone tissue engineering. INT J POLYM MATER PO 2016. [DOI: 10.1080/00914037.2016.1163561] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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46
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Bertoldo M, Coltelli MB, Messina T, Bronco S, Castelvetro V. Emulsion Blending Approach for the Preparation of Gelatin/Poly(butylene succinate-co-adipate) Films. ACS Biomater Sci Eng 2016; 2:677-686. [DOI: 10.1021/acsbiomaterials.6b00050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Monica Bertoldo
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della
Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Maria-Beatrice Coltelli
- Dipartimento
di Ingegneria Civile e Industriale, Università di Pisa, Largo L. Lazzarino
1, 56122 Pisa, Italy
| | - Tiziana Messina
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della
Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, via G. Moruzzi,
13, 56124 Pisa, Italy
| | - Simona Bronco
- Istituto per i Processi Chimico-Fisici del Consiglio Nazionale delle Ricerche (IPCF-CNR), Area della
Ricerca, Via G. Moruzzi 1, I-56124 Pisa, Italy
| | - Valter Castelvetro
- Dipartimento
di Chimica e Chimica Industriale, Università di Pisa, via G. Moruzzi,
13, 56124 Pisa, Italy
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47
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Kołbuk D, Guimond-Lischer S, Sajkiewicz P, Maniura-Weber K, Fortunato G. Morphology and surface chemistry of bicomponent scaffolds in terms of mesenchymal stromal cell viability. J BIOACT COMPAT POL 2016. [DOI: 10.1177/0883911515621571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biological interaction between cells and scaffolds is mediated through events at surfaces. Proteins present in the culture medium adsorb on substrates, generating a protein adlayer that triggers further downstream events governing cell adhesion. Polymer blends often combine the properties of the individual components, for example, can provide mechanical as well as surface properties in one fibre. Therefore, mixtures of synthetic polycaprolactone and gelatin as a denatured form of collagen were electrospun at selected conditions and polymer weight ratios. Fibre morphologies and chemical properties of the surfaces were analysed. These scaffolds were seeded with human mesenchymal stromal cells and their viability was studied. Gelatin addition to polycaprolactone leads to a reduction in fibre diameter. A linear increase in gelatin at the fibre surface was observed in function of the weighed polymers, except for polycaprolactone/gelatin fibres incorporating equal weight ratios. Thereby, a depletion of gelatin at the fibre surface is stated for equally mixed polymers. The depletion of gelatin at the fibre surface is most probably due to hydrophobic interactions between hydrophobic segments of polycaprolactone and gelatin, affecting the spinning mechanism and thus fibre structure. Furthermore, polycaprolactone/gelatin blends show enhanced wettability properties compared to pure gelatin, at least partly due to molecular segregation. Results of in vitro studies reveal an increase in cellular viability and proliferation for cells cultivated on nanofibres containing gelatin, caused by the cell-attractive surface composition as well as the hydrophilic nature of the scaffolds. Contact guidance of cells seeded on parallelised fibres is observed, and DNA tests show evidently enhanced cell numbers on nanofibres containing 20 wt% of gelatin.
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Affiliation(s)
- Dorota Kołbuk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
- Advanced Fibres, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
| | - Stefanie Guimond-Lischer
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
| | - Paweł Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Katharina Maniura-Weber
- Biointerfaces, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
| | - Giuseppino Fortunato
- Protection and Physiology, Swiss Federal Laboratories for Materials Science and Technology (EMPA), St. Gallen, Switzerland
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48
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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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49
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Yin G, Zhao D, Ren Y, Zhang L, Zhou Z, Li Q. A convenient process to fabricate gelatin modified porous PLLA materials with high hydrophilicity and strength. Biomater Sci 2016; 4:310-8. [DOI: 10.1039/c5bm00414d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PLLA porous materials with high porosity were prepared by a gradual precipitation method and further modified by using different concentrations of gelatin aqueous solutions.
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Affiliation(s)
- Guangzhong Yin
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Donglin Zhao
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Ye Ren
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Lianwei Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Zheng Zhou
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
| | - Qifang Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
- College of Material Science and Engineering
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50
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Jung JW, Lee H, Hong JM, Park JH, Shim JH, Choi TH, Cho DW. A new method of fabricating a blend scaffold using an indirect three-dimensional printing technique. Biofabrication 2015; 7:045003. [PMID: 26525821 DOI: 10.1088/1758-5090/7/4/045003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Due to its simplicity and effectiveness, the physical blending of polymers is considered to be a practical strategy for developing a versatile scaffold having desirable mechanical and biochemical properties. In the present work, an indirect three-dimensional (i3D) printing technique was proposed to fabricate a 3D free-form scaffold using a blend of immiscible materials, such as polycaprolactone (PCL) and gelatin. The i3D printing technique includes 3D printing of a mold and a sacrificial molding process. PCL/chloroform and gelatin/water were physically mixed to prepare the blend solution, which was subsequently injected into the cavity of a 3D printed mold. After solvent removal and gelatin cross-linking, the mold was dissolved to obtain a PCL-gelatin (PG) scaffold, with a specific 3D structure. Scanning electron microscopy and Fourier transform infrared spectroscopy analysis indicated that PCL masses and gelatin fibers in the PG scaffold homogenously coexisted without chemical bonding. Compression tests confirmed that gelatin incorporation into the PCL enhanced its mechanical flexibility and softness, to the point of being suitable for soft-tissue engineering, as opposed to pure PCL. Human adipose-derived stem cells, cultured on a PG scaffold, exhibited enhanced in vitro chondrogenic differentiation and tissue formation, compared with those on a PCL scaffold. The i3D printing technique can be used to blend a variety of materials, facilitating 3D scaffold fabrication for specific tissue regeneration. Furthermore, this convenient and versatile technique may lead to wider application of 3D printing in tissue engineering.
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Affiliation(s)
- Jin Woo Jung
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), San 31, Hyoja-dong, Nam-gu, Pohang, Gyungbuk 790-784, Korea
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