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Alharbi N, Guthold M. Mechanical properties of hydrated electrospun polycaprolactone (PCL) nanofibers. J Mech Behav Biomed Mater 2024; 155:106564. [PMID: 38749267 DOI: 10.1016/j.jmbbm.2024.106564] [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: 07/11/2023] [Revised: 04/18/2024] [Accepted: 04/26/2024] [Indexed: 05/28/2024]
Abstract
Polycaprolactone (PCL) nanofibers are a promising material for biomedical applications due to their biocompatibility, slow degradation rate, and thermal stability. We electrospun PCL fibers onto a striated substrate with 12 μm wide ridges and grooves and determined their mechanical properties in an aqueous solution with a combined atomic force/inverted optical microscopy technique. Fiber diameters, D, ranged from 27 to 280 nm. The hydrated PCL fibers had an extensibility (breaking strain), εmax, of 137%. The Young's modulus, E, and tensile strength, σT, showed a strong dependence on fiber diameter, D; decreasing steeply with increasing diameter, following empirical equations E(D)=(4.3∙103∙e-D51nm+1.1∙102) MPa and σT(D)=(2.6∙103∙e-D55nm+0.6∙102) MPa. Incremental stress-strain measurements were employed to investigate the viscoelastic behavior of these fibers. The fibers exhibited stress relaxation with a fast and slow relaxation time of 3.7 ± 1.2 s and 23 ± 8 s and these experiments also allowed the determination of the elastic and viscous moduli. Cyclic stress-strain curves were used to determine that the elastic limit of the fibers, εelastic, is between 19% and 36%. These curves were also used to determine that these fibers showed small energy losses (<20%) at small strains (ε < 10%), and over 50% energy loss at large strains (ε > 50%), asymptotically approaching 61%, as Eloss=61%·(1-e-0.04*ε). Our work is the first mechanical characterization of hydrated electrospun PCL nanofibers; all previous experiments were performed on dry PCL fibers, to which we will compare our data.
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Affiliation(s)
- Nouf Alharbi
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, USA
| | - Martin Guthold
- Department of Physics, Wake Forest University, Winston-Salem, NC, 27109, USA; Center for Functional Materials, Wake Forest University, Winston-Salem, NC, 27109, USA.
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2
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Ozdemir S, Oztemur J, Sezgin H, Yalcin-Enis I. Optimization of Electrospun Bilayer Vascular Grafts through Assessment of the Mechanical Properties of Monolayers. ACS Biomater Sci Eng 2024; 10:960-974. [PMID: 38196384 DOI: 10.1021/acsbiomaterials.3c01161] [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] [Indexed: 01/11/2024]
Abstract
Small-diameter vascular grafts must be obtained with the most appropriate materials and design selection to harmoniously display a variety of features, including adequate tensile strength, compliance, burst strength, biocompatibility, and biodegradability against challenging physiological and hemodynamic conditions. In this study, monolayer vascular grafts with randomly distributed or radially oriented fibers are produced using neat, blended, and copolymer forms of polycaprolactone (PCL) and poly(lactic acid) (PLA) via the electrospinning technique. The blending ratio is varied by increasing 10 in the range of 50-100%. Bilayer graft designs are realized by determining the layers with a random fiber distribution for the inner layer and radial fiber orientation for the outer layer. SEM analysis, wall thickness and fiber diameter measurements, tensile strength, elongation, burst strength, and compliance tests are done for both mono- and bilayer scaffolds. The findings revealed that the scaffolds made of neat PCL show more flexibility than the neat PLA samples, which possess higher tensile strength values than neat PCL scaffolds. Also, in blended samples, the tensile strength values do not show a significant improvement, whereas the elongation values are enhanced in tubular samples, depending on the blending ratio. Also, neat poly(l-lactide-co-caprolactone) (PLCL) samples have both higher elongation and strength values than neat and blended scaffolds, with some exceptions. The blended specimens comprising a combination of PCL and PLA, with blending ratios of 80/20 and 70/30, exhibited the most elevated burst pressures. Conversely, the PLCL scaffolds demonstrated superior compliance levels. These findings suggest that the blending approach and fiber orientation offer enhanced burst strength, while copolymer utilization in PLCL scaffolds without fiber alignment enhances their compliance properties. Thus, it is evident that using a copolymer instead of blending PCL and PLA and combining the PLCL layer with PCL and PLA monolayers in bilayer vascular graft design is promising in terms of mechanical and biological properties.
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Affiliation(s)
- Suzan Ozdemir
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Janset Oztemur
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Hande Sezgin
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
| | - Ipek Yalcin-Enis
- Textile Engineering Department, Istanbul Technical University, Istanbul 34437, Turkey
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3
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Cuahuizo-Huitzil G, Olivares-Xometl O, Arellanes-Lozada P, Laguna Cortés JO, Arriola Morales J, Santacruz-Vázquez C, Santacruz-Vázquez V. Estimation of Digital Porosity of Electrospun Veils by Image Analysis. Polymers (Basel) 2024; 16:300. [PMID: 38276707 PMCID: PMC10820155 DOI: 10.3390/polym16020300] [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: 12/24/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024] Open
Abstract
The present work reports on an empirical mathematical expression for predicting the digital porosity (DP) of electrospun nanofiber veils, employing emulsions of poly(vinyl alcohol) (PVOH) and olive and orange oils. The electrospun nanofibers were analyzed by scanning electron microscopy (SEM), observing orientation and digital porosity (DP) in the electrospun veils. To determine the DP of the veils, the SEM micrographs were transformed into a binary system, and then the threshold was established, and the nanofiber solid surfaces were emphasized. The relationship between the experimental results and those obtained with the empirical mathematical expression displayed a correlation coefficient (R2) of 0.97 by employing threshold II. The mathematical expression took into account experimental variables such as the nanofiber humidity and emulsion conductivity prior to electrospinning, in addition to the corresponding operation conditions. The results produced with the proposed expression showed that the prediction of the DP of the electrospun veils was feasible with the considered thresholds.
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Affiliation(s)
- Guadalupe Cuahuizo-Huitzil
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Puebla 72570, Mexico; (G.C.-H.); (O.O.-X.); (P.A.-L.); (J.A.M.)
| | - Octavio Olivares-Xometl
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Puebla 72570, Mexico; (G.C.-H.); (O.O.-X.); (P.A.-L.); (J.A.M.)
| | - Paulina Arellanes-Lozada
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Puebla 72570, Mexico; (G.C.-H.); (O.O.-X.); (P.A.-L.); (J.A.M.)
| | - José Oscar Laguna Cortés
- Departamento de Ciencias Básicas, Tecnológico Nacional de México—Instituto Tecnológico de Puebla, Av. Tecnológico 420, Puebla 72220, Mexico;
| | - Janette Arriola Morales
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Puebla 72570, Mexico; (G.C.-H.); (O.O.-X.); (P.A.-L.); (J.A.M.)
| | - Claudia Santacruz-Vázquez
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Puebla 72570, Mexico; (G.C.-H.); (O.O.-X.); (P.A.-L.); (J.A.M.)
| | - Verónica Santacruz-Vázquez
- Facultad de Ingeniería Química, Benemérita Universidad Autónoma de Puebla, Av. San Claudio y 18 Sur, Puebla 72570, Mexico; (G.C.-H.); (O.O.-X.); (P.A.-L.); (J.A.M.)
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4
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Altundag Ö, Öteyaka MÖ, Çelebi-Saltik B. Co- and Triaxial Electrospinning for Stem Cell-based Bone Regeneration. Curr Stem Cell Res Ther 2024; 19:865-878. [PMID: 37594104 DOI: 10.2174/1574888x18666230818094216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 07/06/2023] [Accepted: 07/19/2023] [Indexed: 08/19/2023]
Abstract
Bone tissue is composed of organic minerals and cells. It has the capacity to heal for certain minor damages, but when the bone defects surpass the critical threshold, they need fixing. Bone regeneration through natural and synthetic biodegradable materials requires various steps, such as manufacturing methods and materials selection. A successful biodegradable bone graft should have a high surface area/ volume ratio, strength, and a biocompatible, porous structure capable of promoting cell adhesion, proliferation, and differentiation. Considering these requirements, the electrospinning technique is promising for creating functional nano-sized scaffolds. The multi-axial methods, such as coaxial and triaxial electrospinning, are the most popular techniques to produce double or tri-layered scaffolds, respectively. Recently, stem cell culture on scaffolds and the application of osteogenic differentiation protocols on these scaffolds have opened new possibilities in the field of biomaterials research. This review discusses an overview of the progress in coaxial and triaxial technology through biodegradable composite bone materials. The review also carefully elaborates the osteogenic differentiation using stem cells and their performance with nano-sized scaffolds.
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Affiliation(s)
- Özlem Altundag
- Department of Stem Cell Sciences, Graduate School of Health Sciences, Hacettepe University, Ankara, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey
| | - Mustafa Özgür Öteyaka
- Department of Electronic and Automation, Mechatronic Program, Eskisehir Vocational School, Eskisehir Osmangazi University, Eskisehir, Turkey
| | - Betül Çelebi-Saltik
- Department of Stem Cell Sciences, Graduate School of Health Sciences, Hacettepe University, Ankara, Turkey
- Center for Stem Cell Research and Development, Hacettepe University, Ankara, Turkey
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5
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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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Lamarra J, Rivero S, Pinotti A, Lopez D. Nanofiber mats functionalized with Mentha piperita essential oil stabilized in a chitosan-based emulsion designed via an electrospinning technique. Int J Biol Macromol 2023; 248:125980. [PMID: 37506795 DOI: 10.1016/j.ijbiomac.2023.125980] [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: 05/29/2023] [Revised: 07/15/2023] [Accepted: 07/23/2023] [Indexed: 07/30/2023]
Abstract
A nanostructured device based on poly(vinyl alcohol) (PVA) loaded with a cross-linked chitosan (CH) emulsion, soy lecithin, and peppermint essential oil (Mentha piperita) was designed for topical applications using an electrospinning instrument coupled to a rotary drum collector. Different suspensions were obtained by varying the PVA to emulsion ratio (PVA:Em) 87.5:12.5, 82:18, and 75:25, using a PVA solution as a control. ATR-FTIR spectra confirmed the interactions among the components of the system. Scanning electron microscopy (SEM) of the mats evinced that the aligned fiber diameter decreased with higher proportions of emulsion while dynamic mechanical analysis (DMA) revealed a decrease in the storage modulus. The entrapment of the functionalized emulsions not only improved the elongation of the matrices but also provided them with greater structural integrity compared to the single PVA matrix. The most favorable formulation in terms of mechanical properties was found to be the 82:18 ratio. After 1 h of close contact between the 82:18 matrix and a porcine skin explant, the latter was examined by confocal microscopy, which revealed the localization of the essential oil mainly on the surface of the stratum corneum (SC).However, after 7 h of contact, the distribution of the peppermint EO throughout the viable epidermis was observed, which was further supported by ATR-FTIR studies. Tailored electrospun matrices would have potential applications as devices for topical or transdermal treatments due to their vehiculization role that allows the diffusion of peppermint essential oil as a skin penetration enhancer.
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Affiliation(s)
- Javier Lamarra
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CCT-CONICET La Plata, CIC, UNLP), 47 y 116 S/N, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Exactas, UNLP, La Plata 1900, Argentina.
| | - Sandra Rivero
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CCT-CONICET La Plata, CIC, UNLP), 47 y 116 S/N, La Plata, Buenos Aires, Argentina; Facultad de Ciencias Exactas, UNLP, La Plata 1900, Argentina
| | - Adriana Pinotti
- Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CCT-CONICET La Plata, CIC, UNLP), 47 y 116 S/N, La Plata, Buenos Aires, Argentina; Facultad de Ingeniería, UNLP, La Plata 1900, Argentina
| | - Daniel Lopez
- Instituto de Ciencia y Tecnología de Polímeros, ICTP-CSIC, Calle Juan de La Cierva 3, 28006 Madrid, Spain
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Mishra D, Gade S, Pathak V, Vora LK, Mcloughlin K, Medina R, Donnelly RF, Raghu Raj Singh T. Ocular application of electrospun materials for drug delivery and cellular therapies. Drug Discov Today 2023; 28:103676. [PMID: 37343817 DOI: 10.1016/j.drudis.2023.103676] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 05/23/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023]
Abstract
The constraints of delivering conventional drugs, biologics and cell-based therapeutics to target ocular sites necessitate the fabrication of novel drug delivery systems to treat diverse ocular diseases. Conventional ocular drug delivery approaches are prone to low bioavailability, poor penetration and degradation of therapeutics, including cell-based therapies, leading to the need for frequent topical applications or intraocular injections. However, owing to their exceptional structural properties, nanofibrous and microfibrous electrospun materials have gained significant interest in ocular drug delivery and biomaterial applications. This review covers the recent developments of electrospun fibers for the delivery of drugs, biologics, cells, growth factors and tissue regeneration in treating ocular diseases. The insights from this review can provide a thorough understanding of the selection of materials for the fabrication of nano- and/or micro-fibrous systems for ocular applications, with a particular interest in achieving controlled drug release and cell therapy. A detailed modality for fabricating different types of nano- and micro-fibers produced from electrospinning and factors influencing generation are also discussed.
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Affiliation(s)
- Deepakkumar Mishra
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Shilpkala Gade
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Varun Pathak
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Kiran Mcloughlin
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Reinhold Medina
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
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8
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Bahú JO, Melo de Andrade LR, Crivellin S, Khouri NG, Sousa SO, Fernandes LMI, Souza SDA, Concha LSC, Schiavon MIRB, Benites CI, Severino P, Souto EB, Concha VOC. Rotary Jet Spinning (RJS): A Key Process to Produce Biopolymeric Wound Dressings. Pharmaceutics 2022; 14:pharmaceutics14112500. [PMID: 36432691 PMCID: PMC9699276 DOI: 10.3390/pharmaceutics14112500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/03/2022] [Accepted: 11/17/2022] [Indexed: 11/19/2022] Open
Abstract
Wounds result from different causes (e.g., trauma, surgeries, and diabetic ulcers), requiring even extended periods of intensive care for healing, according to the patient's organism and treatment. Currently, wound dressings generated by polymeric fibers at micro and nanometric scales are promising for healing the injured area. They offer great surface area and porosity, mimicking the fibrous extracellular matrix structure, facilitating cell adhesion, migration, and proliferation, and accelerating the wound healing process. Such properties resulted in countless applications of these materials in biomedical and tissue engineering, also as drug delivery systems for bioactive molecules to help tissue regeneration. The techniques used to engineer these fibers include spinning methods (electro-, rotary jet-), airbrushing, and 3D printing. These techniques have important advantages, such as easy-handle procedure and process parameters variability (type of polymer), but encounter some scalability problems. RJS is described as a simple and low-cost technique resulting in high efficiency and yield for fiber production, also capable of bioactive agents' incorporation to improve the healing potential of RJS wound dressings. This review addresses the use of RJS to produce polymeric fibers, describing the concept, type of configuration, comparison to other spinning techniques, most commonly used polymers, and the relevant parameters that influence the manufacture of the fibers, for the ultimate use in the development of wound dressings.
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Affiliation(s)
- Juliana O. Bahú
- INCT—BIOFABRIS, School of Chemical Engineering, University of Campinas, Albert Einstein Ave., Cidade Universitária Zeferino Vaz, nº. 500, Campinas 13083-852, São Paulo, Brazil
- Correspondence: (J.O.B.); (E.B.S.)
| | - Lucas R. Melo de Andrade
- Laboratory of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Food and Nutrition, Federal University of Mato Grosso do Sul, Campo Grande 79070-900, Mato Grosso do Sul, Brazil
| | - Sara Crivellin
- INCT—BIOFABRIS, School of Chemical Engineering, University of Campinas, Albert Einstein Ave., Cidade Universitária Zeferino Vaz, nº. 500, Campinas 13083-852, São Paulo, Brazil
| | - Nadia G. Khouri
- INCT—BIOFABRIS, School of Chemical Engineering, University of Campinas, Albert Einstein Ave., Cidade Universitária Zeferino Vaz, nº. 500, Campinas 13083-852, São Paulo, Brazil
| | - Sara O. Sousa
- Institute of Environmental, Chemical and Pharmaceutical Science, School of Chemical Engineering, Federal University of São Paulo (UNIFESP), São Nicolau St., Jd. Pitangueiras, Diadema 09913-030, São Paulo, Brazil
| | - Luiza M. I. Fernandes
- Institute of Environmental, Chemical and Pharmaceutical Science, School of Chemical Engineering, Federal University of São Paulo (UNIFESP), São Nicolau St., Jd. Pitangueiras, Diadema 09913-030, São Paulo, Brazil
| | - Samuel D. A. Souza
- INCT—BIOFABRIS, School of Chemical Engineering, University of Campinas, Albert Einstein Ave., Cidade Universitária Zeferino Vaz, nº. 500, Campinas 13083-852, São Paulo, Brazil
| | - Luz S. Cárdenas Concha
- Graduate School, Sciences and Engineering, National University of Trujillo, Av. Juan Pablo II S/N Urb. San Andrés, Trujillo 13011, La Libertad, Peru
| | - Maria I. R. B. Schiavon
- INCT—BIOFABRIS, School of Chemical Engineering, University of Campinas, Albert Einstein Ave., Cidade Universitária Zeferino Vaz, nº. 500, Campinas 13083-852, São Paulo, Brazil
| | - Cibelem I. Benites
- Federal Laboratory of Agricultural and Livestock Defense (LFDA-SP), Ministry of Agriculture, Livestock and Food Supply (MAPA), Campinas 70043-900, São Paulo, Brazil
| | - Patrícia Severino
- Technology and Research Institute (ITP), Tiradentes University (UNIT), Murilo Dantas Ave., Farolândia, nº 300, Aracaju 49032-490, Sergipe, Brazil
| | - Eliana B. Souto
- Department of Pharmaceutical Technology, Faculty of Pharmacy of University of Porto (FFUP), Rua Jorge de Viterbo Ferreira, nº 228, 4050-313 Porto, Portugal
- REQUIMTE/UCIBIO, Faculty of Pharmacy, University of Porto, de Jorge Viterbo Ferreira, nº. 228, 4050-313 Porto, Portugal
- Correspondence: (J.O.B.); (E.B.S.)
| | - Viktor O. Cárdenas Concha
- INCT—BIOFABRIS, School of Chemical Engineering, University of Campinas, Albert Einstein Ave., Cidade Universitária Zeferino Vaz, nº. 500, Campinas 13083-852, São Paulo, Brazil
- Institute of Environmental, Chemical and Pharmaceutical Science, School of Chemical Engineering, Federal University of São Paulo (UNIFESP), São Nicolau St., Jd. Pitangueiras, Diadema 09913-030, São Paulo, Brazil
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9
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Evaluation of Magnesium-Phosphate Particle Incorporation into Co-Electrospun Chitosan-Elastin Membranes for Skin Wound Healing. Mar Drugs 2022; 20:md20100615. [PMID: 36286439 PMCID: PMC9604583 DOI: 10.3390/md20100615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 11/24/2022] Open
Abstract
Major challenges facing clinicians treating burn wounds are the lack of integration of treatment to wound, inadequate mechanical properties of treatments, and high infection rates which ultimately lead to poor wound resolution. Electrospun chitosan membranes (ESCM) are gaining popularity for use in tissue engineering applications due to their drug loading ability, biocompatibility, biomimetic fibrous structure, and antimicrobial characteristics. This work aims to modify ESCMs for improved performance in burn wound applications by incorporating elastin and magnesium-phosphate particles (MgP) to improve mechanical and bioactive properties. The following ESCMs were made to evaluate the individual components’ effects; (C: chitosan, CE: chitosan-elastin, CMg: chitosan-MgP, and CEMg: chitosan-elastin-MgP). Membrane properties analyzed were fiber size and structure, hydrophilic properties, elastin incorporation, MgP incorporation and in vitro release, mechanical properties, degradation profiles, and in vitro cytocompatibility with NIH3T3 fibroblasts. The addition of both elastin and MgP increased the average fiber diameter of CE (~400 nm), CMg (~360 nm), and CEMg (565 nm) compared to C (255 nm). Water contact angle analysis showed elastin incorporated membranes (CE and CEMg) had increased hydrophilicity (~50°) compared to the other groups (C and CMg, ~110°). The results from the degradation study showed mass retention of ~50% for C and CMg groups, compared to ~ 30% seen in CE and CEMg after 4 weeks in a lysozyme/PBS solution. CMg and CEMg exhibited burst-release behavior of ~6 µg/ml or 0.25 mM magnesium within 72 h. In vitro analysis with NIH3T3 fibroblasts showed CE and CEMg groups had superior cytocompatibility compared to C and CMg. This work has demonstrated the successful incorporation of elastin and MgP into ESCMs and allows for future studies on burn wound applications.
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10
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Nanofiber Carriers of Therapeutic Load: Current Trends. Int J Mol Sci 2022; 23:ijms23158581. [PMID: 35955712 PMCID: PMC9368923 DOI: 10.3390/ijms23158581] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/26/2022] [Accepted: 07/27/2022] [Indexed: 12/10/2022] Open
Abstract
The fast advancement in nanotechnology has prompted the improvement of numerous methods for the creation of various nanoscale composites of which nanofibers have gotten extensive consideration. Nanofibers are polymeric/composite fibers which have a nanoscale diameter. They vary in porous structure and have an extensive area. Material choice is of crucial importance for the assembly of nanofibers and their function as efficient drug and biomedicine carriers. A broad scope of active pharmaceutical ingredients can be incorporated within the nanofibers or bound to their surface. The ability to deliver small molecular drugs such as antibiotics or anticancer medications, proteins, peptides, cells, DNA and RNAs has led to the biomedical application in disease therapy and tissue engineering. Although nanofibers have shown incredible potential for drug and biomedicine applications, there are still difficulties which should be resolved before they can be utilized in clinical practice. This review intends to give an outline of the recent advances in nanofibers, contemplating the preparation methods, the therapeutic loading and release and the various therapeutic applications.
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11
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Yuwono LA, Siswanto, Sari M, Yusuf Y, Suciati T, Sari YW, Che Abdullah CA, Aminatun. Fabrication and characterization of hydroxyapatite-polycaprolactone-collagen bone scaffold by electrospun nanofiber. INT J POLYM MATER PO 2022. [DOI: 10.1080/00914037.2022.2097675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | - Siswanto
- Department of Physics, Universitas Airlangga, Surabaya, Indonesia
| | - Mona Sari
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Yusril Yusuf
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Tri Suciati
- Department of Pharmaceutics, Institut Teknologi Bandung, Bandung, Indonesia
| | | | - Che Azurahanim Che Abdullah
- Nanomaterial Synthesis and Characterization Lab, Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, Serdang, Malaysia
| | - Aminatun
- Department of Physics, Universitas Airlangga, Surabaya, Indonesia
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12
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Venugopal D, Vishwakarma S, Kaur I, Samavedi S. Electrospun fiber-based strategies for controlling early innate immune cell responses: Towards immunomodulatory mesh designs that facilitate robust tissue repair. Acta Biomater 2022; 163:228-247. [PMID: 35675893 DOI: 10.1016/j.actbio.2022.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/16/2022] [Accepted: 06/01/2022] [Indexed: 12/16/2022]
Abstract
Electrospun fibrous meshes are widely used for tissue repair due to their ability to guide a host of cell responses including phenotypic differentiation and tissue maturation. A critical factor determining the eventual biological outcomes of mesh-based regeneration strategies is the early innate immune response following implantation. The natural healing process involves a sequence of tightly regulated, temporally varying and delicately balanced pro-/anti-inflammatory events which together promote mesh integration with host tissue. Matrix designs that do not account for the immune milieu can result in dysregulation, chronic inflammation and fibrous capsule formation, thus obliterating potential therapeutic outcomes. In this review, we provide systematic insights into the effects of specific fiber/mesh properties and mechanical stimulation on the responses of early innate immune modulators viz., neutrophils, monocytes and macrophages. We identify matrix characteristics that promote anti-inflammatory immune phenotypes, and we correlate such responses with pro-regenerative in vivo outcomes. We also discuss recent advances in 3D fabrication technologies, bioactive functionalization approaches and biomimetic/bioinspired immunomodulatory mesh design strategies for tissue repair and wound healing. The mechanobiological insights and immunoregulatory strategies discussed herein can help improve the translational outcomes of fiber-based regeneration and may also be leveraged for intervention in degenerative diseases associated with dysfunctional immune responses. STATEMENT OF SIGNIFICANCE: The crucial role played by immune cells in promoting biomaterial-based tissue regeneration is being increasingly recognized. In this review focusing on the interactions of innate immune cells (primarily neutrophils, monocytes and macrophages) with electrospun fibrous meshes, we systematically elucidate the effects of the fiber microenvironment and mechanical stimulation on biological responses, and build upon these insights to inform the rational design of immunomodulatory meshes for effective tissue repair. We discuss state-of-the-art fabrication methods and mechanobiological advances that permit the orchestration of temporally controlled phenotypic switches in immune cells during different phases of healing. The design strategies discussed herein can also be leveraged to target several complex autoimmune and inflammatory diseases.
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13
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Nitti P, Palazzo B, Gallo N, Scalera F, Sannino A, Gervaso F. Smooth‐rough asymmetric
PLGA
structure made of dip coating membrane and electrospun nanofibrous scaffolds meant to be used for guided tissue regeneration of periodontium. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25988] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Paola Nitti
- Biomaterials Laboratory, Department of Engineering for Innovation University of Salento Lecce
| | - Barbara Palazzo
- Ghimas S.p.A., c/o Dhitech Scarl Lecce Italy
- ENEA Division for Sustainable Materials Research Centre of Brindisi Brindisi Italy
| | - Nunzia Gallo
- Biomaterials Laboratory, Department of Engineering for Innovation University of Salento Lecce
| | - Francesca Scalera
- Biomaterials Laboratory, Department of Engineering for Innovation University of Salento Lecce
- Department of Physical Sciences and Technologies of Matter Institute of Nanotechnology‐CNR Lecce Italy
| | - Alessandro Sannino
- Biomaterials Laboratory, Department of Engineering for Innovation University of Salento Lecce
| | - Francesca Gervaso
- Biomaterials Laboratory, Department of Engineering for Innovation University of Salento Lecce
- Department of Physical Sciences and Technologies of Matter Institute of Nanotechnology‐CNR Lecce Italy
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14
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Electrospun PVA–Dextran Nanofibrous Scaffolds for Acceleration of Topical Wound Healing: Nanofiber Optimization, Characterization and In Vitro Assessment. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2022. [DOI: 10.1007/s13369-022-06856-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
AbstractElectrospun polyvinyl alcohol–dextran (PVA–Dex)-based nanofibers (NFs) are explored as a novel class of bioactive injury dressing materials, which have an essential role for topical injury mending. Sodium ampicillin-loaded citric acid-cross-linked PVA–Dex NFs were fabricated by electrospinner for wound recuperating purposes. Results revealed that PVA (10%)–dextran (10%) cross-linked with 5% citric acid (CA) was chosen as an optimized condition for obtaining non-beaded and morphological accepted nanofibers. Altered concentrations of CA as cross-linker progressively enhanced significantly the mechanical/thermal stability and wettability-proof of NFs scaffolds, compared to un-cross-linked (PVA–Dex) scaffolds. Meanwhile, swelling (%), protein adsorption and released ampicillin of NFs decreased dramatically with the increase in the CA concentration, and conversely enhanced with increasing dextran concentrations. Interestingly, resultant PVA–Dex NFs with high concentrations of dextran promoted the proliferation of HFB-4 cells in a high concentration-dependent manner and high antimicrobial activity behavior, compared to NFs containing high concentrations of CA cross-linker after 24 and 48 h of cell exposure. Notably, all fabricated NFs have remarked ability to accelerate the rate of in vitro wound gap closure (%) after treatment for 24 and 48 h, compared to control sample. However, reducing CA concentration in NFs showed the highest percentages of wound healing for scratched HFB-4 cells with clear observed healing process.
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15
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Electrospinning as a Promising Process to Preserve the Quality and Safety of Meat and Meat Products. COATINGS 2022. [DOI: 10.3390/coatings12050644] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Fresh and processed meat products are staple foods worldwide. However, these products are considered perishable foods and their deterioration depends partly on the inner and external properties of meat. Beyond conventional meat preservation approaches, electrospinning has emerged as a novel effective alternative to develop active and intelligent packaging. Thus, this review aims to discuss the advantages and shortcomings of electrospinning application for quality and safety preservation of meat and processed meat products. Electrospun fibres are very versatile, and their features can be modulated to deliver functional properties such as antioxidant and antimicrobial effects resulting in shelf-life extension and in some cases product quality improvement. Compared to conventional processes, electrospun fibres provide advantages such as casting and coating in the fabrication of active systems, indicators, and sensors. The approaches for improving, stabilizing, and controlling the release of active compounds and highly sensitive, rapid, and reliable responsiveness, under changes in real-time are still challenging for innovative packaging development. Despite their advantages, the active and intelligent electrospun fibres for meat packaging are still restricted to research and not yet widely used for commercial products. Industrial validation of lab-scale achievements of electrospinning might boost their commercialisation. Safety must be addressed by evaluating the impact of electrospun fibres migration from package to foods on human health. This information will contribute into filling knowledge gaps and sustain clear regulations.
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16
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Szymańska E, Wojasiński M, Czarnomysy R, Dębowska R, Łopianiak I, Adasiewicz K, Ciach T, Winnicka K. Chitosan-Enriched Solution Blow Spun Poly(Ethylene Oxide) Nanofibers with Poly(Dimethylsiloxane) Hydrophobic Outer Layer for Skin Healing and Regeneration. Int J Mol Sci 2022; 23:ijms23095135. [PMID: 35563526 PMCID: PMC9105710 DOI: 10.3390/ijms23095135] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/29/2022] [Accepted: 04/29/2022] [Indexed: 12/10/2022] Open
Abstract
Chitosan (CS)/poly(ethylene oxide) (PEO)-based nanofiber mats have attracted particular attention as advanced materials for medical and pharmaceutical applications. In the scope of present studies, solution blow spinning was applied to produce nanofibers from PEO and CS and physicochemical and biopharmaceutical studies were carried out to investigate their potential as wound nanomaterial for skin healing and regeneration. Additional coating with hydrophobic poly(dimethylsiloxane) was applied to favor removal of nanofibers from the wound surface. Unmodified nanofibers displayed highly porous structure with the presence of uniform, randomly aligned nanofibers, in contrast to coated materials in which almost all the free spaces were filled in with poly(dimethylsiloxane). Infrared spectroscopy indicated that solution blow technique did not influence the molecular nature of native polymers. Obtained nanofibers exhibited sufficient wound exudate absorbency, which appears beneficial to moisturize the wound bed during the healing process. Formulations displayed greater tensile strength as compared to commercial hydrofiber-like dressing materials comprised of carboxymethylcellulose sodium or calcium alginate, which points toward their protective function against mechanical stress. Coating with hydrophobic poly(dimethylsiloxane) (applied to favor nanofiber removal from the wound surface) impacted porosity and decreased both mechanical properties and adherence to excised human skin, though the obtained values were comparable to those attained for commercial hydrofiber-like materials. In vitro cytotoxicity and irritancy studies showed biocompatibility and no skin irritant response of nanofibers in contact with a reconstituted three-dimensional human skin model, while scratch assay using human fibroblast cell line HDFa revealed the valuable potential of CS/PEO nanofibers to promote cell migration at an early stage of injury.
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Affiliation(s)
- Emilia Szymańska
- Department of Pharmaceutical Technology, Medical University of Bialystok, Mickiewicza 2c, 15-222 Białystok, Poland;
- Correspondence: ; Tel.: +48-8574-856-16
| | - Michał Wojasiński
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland; (M.W.); (I.Ł.); (T.C.)
| | - Robert Czarnomysy
- Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Kilińskiego 1, 15-089 Bialystok, Poland;
| | - Renata Dębowska
- Dr Irena Eris Centre for Science and Research, Armii Krajowej 12, 05-500 Piaseczno, Poland;
| | - Iwona Łopianiak
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland; (M.W.); (I.Ł.); (T.C.)
- Doctoral School No. 1, Warsaw University of Technology, Plac Politechniki 1, 00-661 Warsaw, Poland
| | - Kamil Adasiewicz
- Student Scientific Group, Department of Pharmaceutical Technology, Medical University of Bialystok, Mickiewicza 2c, 15-222 Białystok, Poland;
| | - Tomasz Ciach
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland; (M.W.); (I.Ł.); (T.C.)
- Centre for Advanced Materials and Technologies (CEZAMAT), Warsaw University of Technology, Poleczki 19, 02-822 Warsaw, Poland
| | - Katarzyna Winnicka
- Department of Pharmaceutical Technology, Medical University of Bialystok, Mickiewicza 2c, 15-222 Białystok, Poland;
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Abstract
The excellent combination of properties has seen a steep increase in the demand for titanium (Ti)-based material as biomedical implant devices. However, some features that promote biocompatibility are found to be lacking in Ti implants. The use of polymer nanofiber (NF) coating on the surfaces of the implants has been proven to remedy these setbacks. In particular, electrospun NFs are versatile as natural extracellular matrix mimics and as facilitators in the biocompatibility function of Ti-based implants. Therefore, various properties of Ti implants coated with polymer NFs and the correlations among these properties are explored in this review. Synthetic polymers are favorable in tissue engineering applications because they are biocompatible and have low toxicity and degradation rates. Several approved synthetic polymers and polymer hybrids have been electrospun onto Ti implant surfaces to successfully improve the biomedical applicability of the implants with regard to their physical (including diameter and porosity), chemical (including corrosion resistance), mechanical (including elastic modulus, strength and ductility) and biological properties (including tissue integration, antimicrobial and cytotoxicity).
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18
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Maurya AK, Mias E, Schoeller J, Collings IE, Rossi RM, Dommann A, Neels A. Understanding multiscale structure-property correlations in PVDF-HFP electrospun fiber membranes by SAXS and WAXS. NANOSCALE ADVANCES 2022; 4:491-501. [PMID: 35178501 PMCID: PMC8765355 DOI: 10.1039/d1na00503k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 11/14/2021] [Indexed: 06/14/2023]
Abstract
Electrospinning is a versatile technique to produce nanofibrous membranes with applications in filtration, biosensing, biomedical and tissue engineering. The structural and therefore physical properties of electrospun fibers can be finely tuned by changing the electrospinning parameters. The large parameter window makes it challenging to optimize the properties of fibers for a specific application. Therefore, a fundamental understanding of the multiscale structure of fibers and its correlation with their macroscopic behaviors is required for the design and production of systems with dedicated applications. In this study, we demonstrate that the properties of poly(vinylidene fluoride-co-hexafluoro propylene) (PVDF-HFP) electrospun fibers can be tuned by changing the rotating drum speed used as a collector during electrospinning. Indeed, with the help of multiscale characterization techniques such as scanning electron microscopy (SEM), small-angle X-ray scattering (SAXS), and wide-angle X-ray scattering (WAXS), we observe that increasing the rotating drum speed not only aligns the fibers but also induces polymeric chain rearrangements at the molecular scale. Such changes result in enhanced mechanical properties and an increase of the piezoelectric β-phase of the PVDF-HFP fiber membranes. We detect nanostructural deformation behaviors when the aligned fibrous membrane is uniaxially stretched along the fiber alignment direction, while an increase in the alignment of the fibers is observed for randomly aligned samples. This was analyzed by performing in situ SAXS measurements coupled with uniaxial tensile loading of the fibrous membranes along the fiber alignment direction. The present study shows that fibrous membranes can be produced with varying degrees of fiber orientation, piezoelectric β-phase content, and mechanical properties by controlling the speed of the rotating drum collector during the fiber production. Such aligned fiber membranes have potential applications for neural or musculoskeletal tissue engineering.
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Affiliation(s)
- Anjani K Maurya
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ARTORG Center for Biomedical Engineering Research, University of Bern Murtenstrasse 50 3008 Bern Switzerland
| | - Eloïse Mias
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - Jean Schoeller
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ETH Zürich, Department of Health Science and Technology 8092 Zürich Switzerland
| | - Ines E Collings
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - René M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ETH Zürich, Department of Health Science and Technology 8092 Zürich Switzerland
| | - Alex Dommann
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- ARTORG Center for Biomedical Engineering Research, University of Bern Murtenstrasse 50 3008 Bern Switzerland
| | - Antonia Neels
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Center for X-Ray Analytics Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- Department of Chemistry, University of Fribourg Avenue de l'Europe 20 1700 Fribourg Switzerland
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19
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Russo V, El Khatib M, Prencipe G, Cerveró-Varona A, Citeroni MR, Mauro A, Berardinelli P, Faydaver M, Haidar-Montes AA, Turriani M, Di Giacinto O, Raspa M, Scavizzi F, Bonaventura F, Liverani L, Boccaccini AR, Barboni B. Scaffold-Mediated Immunoengineering as Innovative Strategy for Tendon Regeneration. Cells 2022; 11:cells11020266. [PMID: 35053383 PMCID: PMC8773518 DOI: 10.3390/cells11020266] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/06/2022] [Accepted: 01/10/2022] [Indexed: 12/13/2022] Open
Abstract
Tendon injuries are at the frontier of innovative approaches to public health concerns and sectoral policy objectives. Indeed, these injuries remain difficult to manage due to tendon’s poor healing ability ascribable to a hypo-cellularity and low vascularity, leading to the formation of a fibrotic tissue affecting its functionality. Tissue engineering represents a promising solution for the regeneration of damaged tendons with the aim to stimulate tissue regeneration or to produce functional implantable biomaterials. However, any technological advancement must take into consideration the role of the immune system in tissue regeneration and the potential of biomaterial scaffolds to control the immune signaling, creating a pro-regenerative environment. In this context, immunoengineering has emerged as a new discipline, developing innovative strategies for tendon injuries. It aims at designing scaffolds, in combination with engineered bioactive molecules and/or stem cells, able to modulate the interaction between the transplanted biomaterial-scaffold and the host tissue allowing a pro-regenerative immune response, therefore hindering fibrosis occurrence at the injury site and guiding tendon regeneration. Thus, this review is aimed at giving an overview on the role exerted from different tissue engineering actors in leading immunoregeneration by crosstalking with stem and immune cells to generate new paradigms in designing regenerative medicine approaches for tendon injuries.
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Affiliation(s)
- Valentina Russo
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Mohammad El Khatib
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Giuseppe Prencipe
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
- Correspondence:
| | - Adrián Cerveró-Varona
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Maria Rita Citeroni
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Annunziata Mauro
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Paolo Berardinelli
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Melisa Faydaver
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Arlette A. Haidar-Montes
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Maura Turriani
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Oriana Di Giacinto
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
| | - Marcello Raspa
- Institute of Biochemistry and Cellular Biology (IBBC), Council of National Research (CNR), Campus International Development (EMMA-INFRAFRONTIER-IMPC), 00015 Monterotondo Scalo, Italy; (M.R.); (F.S.); (F.B.)
| | - Ferdinando Scavizzi
- Institute of Biochemistry and Cellular Biology (IBBC), Council of National Research (CNR), Campus International Development (EMMA-INFRAFRONTIER-IMPC), 00015 Monterotondo Scalo, Italy; (M.R.); (F.S.); (F.B.)
| | - Fabrizio Bonaventura
- Institute of Biochemistry and Cellular Biology (IBBC), Council of National Research (CNR), Campus International Development (EMMA-INFRAFRONTIER-IMPC), 00015 Monterotondo Scalo, Italy; (M.R.); (F.S.); (F.B.)
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (A.R.B.)
| | - Aldo R. Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (A.R.B.)
| | - Barbara Barboni
- Unit of Basic and Applied Sciences, Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, 64100 Teramo, Italy; (V.R.); (M.E.K.); (A.C.-V.); (M.R.C.); (A.M.); (P.B.); (M.F.); (A.A.H.-M.); (M.T.); (O.D.G.); (B.B.)
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20
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Gallo N, Natali ML, Curci C, Picerno A, Gallone A, Vulpi M, Vitarelli A, Ditonno P, Cascione M, Sallustio F, Rinaldi R, Sannino A, Salvatore L. Analysis of the Physico-Chemical, Mechanical and Biological Properties of Crosslinked Type-I Collagen from Horse Tendon: Towards the Development of Ideal Scaffolding Material for Urethral Regeneration. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7648. [PMID: 34947245 PMCID: PMC8707771 DOI: 10.3390/ma14247648] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 12/05/2021] [Accepted: 12/09/2021] [Indexed: 11/19/2022]
Abstract
Urethral stenosis is a pathological condition that consists in the narrowing of the urethral lumen because of the formation of scar tissue. Unfortunately, none of the current surgical approaches represent an optimal solution because of the high stricture recurrence rate. In this context, we preliminarily explored the potential of an insoluble type-I collagen from horse tendon as scaffolding material for the development of innovative devices for the regeneration of injured urethral tracts. Non-porous collagen-based substrates were produced and optimized, in terms of crosslinking density of the macromolecular structure, to either provide mechanical properties compliant with the urinary tract physiological stress and better sustain tissue regeneration. The effect of the adopted crosslinking strategy on the protein integrity and on the substrate physical-chemical, mechanical and biological properties was investigated in comparison with a decellularized matrix from porcine small intestinal submucosa (SIS patch), an extensively used xenograft licensed for clinical use in urology. The optimized production protocols allowed the preservation of the type I collagen native structure and the realization of a substrate with appealing end-use properties. The biological response, preliminarily investigated by immunofluorescence experiments on human adult renal stem/progenitor cells until 28 days, showed the formation of a stem-cell monolayer within 14 days and the onset of spheroids within 28 days. These results suggested the great potential of the collagen-based material for the development of scaffolds for urethral plate regeneration and for in vitro cellular studies.
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Affiliation(s)
- Nunzia Gallo
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (M.L.N.); (A.S.); (L.S.)
| | - Maria Lucia Natali
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (M.L.N.); (A.S.); (L.S.)
- Typeone Biomaterials, Via Vittorio Veneto 64/C, 73036 Muro Leccese, Italy
| | - Claudia Curci
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy; (C.C.); (A.G.)
| | - Angela Picerno
- Nephrology Unit, Department of Emergency and Organ Transplantation, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Anna Gallone
- Department of Basic Medical Sciences, Neurosciences and Sense Organs, University of Bari “Aldo Moro”, 70124 Bari, Italy; (C.C.); (A.G.)
| | - Marco Vulpi
- Urology and Andrology Unit, Department of Emergency and Organ Transplant, University of Bari “Aldo Moro”, 70124 Bari, Italy; (M.V.); (A.V.); (P.D.)
| | - Antonio Vitarelli
- Urology and Andrology Unit, Department of Emergency and Organ Transplant, University of Bari “Aldo Moro”, 70124 Bari, Italy; (M.V.); (A.V.); (P.D.)
| | - Pasquale Ditonno
- Urology and Andrology Unit, Department of Emergency and Organ Transplant, University of Bari “Aldo Moro”, 70124 Bari, Italy; (M.V.); (A.V.); (P.D.)
| | - Mariafrancesca Cascione
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.C.); (R.R.)
| | - Fabio Sallustio
- Department of Interdisciplinary Medicine, University of Bari “Aldo Moro”, 70124 Bari, Italy;
| | - Rosaria Rinaldi
- Department of Mathematics and Physics “Ennio De Giorgi”, University of Salento, 73100 Lecce, Italy; (M.C.); (R.R.)
| | - Alessandro Sannino
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (M.L.N.); (A.S.); (L.S.)
| | - Luca Salvatore
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (M.L.N.); (A.S.); (L.S.)
- Typeone Biomaterials, Via Vittorio Veneto 64/C, 73036 Muro Leccese, Italy
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Voniatis C, Gottscháll R, Barczikai D, Szabó G, Jedlovszky‐Hajdu A. Enhancing critical features of poly(amino acid) based meshes. J Appl Polym Sci 2021. [DOI: 10.1002/app.51933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Constantinos Voniatis
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology Semmelweis University Budapest Hungary
- Department of Surgical Research and Techniques, Heart and Vascular Centre Semmelweis University Budapest Hungary
| | - Ramóna Gottscháll
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology Semmelweis University Budapest Hungary
- Premed Pharma KFT Budapest Hungary
| | - Dóra Barczikai
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology Semmelweis University Budapest Hungary
| | | | - Angela Jedlovszky‐Hajdu
- Laboratory of Nanochemistry, Department of Biophysics and Radiation Biology Semmelweis University Budapest Hungary
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22
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Transformation of electrospun Keratin/PVA nanofiber membranes into multilayered 3D Scaffolds: Physiochemical studies and corneal implant applications. Int J Pharm 2021; 610:121228. [PMID: 34715260 DOI: 10.1016/j.ijpharm.2021.121228] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 11/23/2022]
Abstract
In this study, we engineered an electrospun keratin/polyvinyl alcohol (PVA) nanofiber membrane with a three-dimensional (3D) fiber network. Both keratin and PVA are known as biocompatible materials, and the 3D assembly of these two led to a transparent membrane with superior mechanical properties. The as-prepared three-dimensionally assembled keratin/PVA nanofiber (3D keratin/PVA NFs) membrane was characterized by state-of-the-art techniques and used as a corneal implant in rabbit eyes. The transparency, mechanical properties, and biocompatibility of the electrospun keratin/PVA NFs were highly enhanced after 3D modification which is mainly attributed to its unique three-dimensional morphology. The performance of 3D keratin/PVA NFs membrane was compared with horse amniotic membrane (AM), and the results obtained from the clinical and histological evaluations showed that it could be considered as an alternative material to the AM. Furthermore, this study provides an emerging approach for converting a two-dimensional electrospun nanofiber membrane to three-dimensional fiber networks that resemble the structure of the extracellular matrix (ECM).
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Su S, Liang J, Xu S, Li X, Xin W, Wang Z, Wang D. Preparation of aligned nanofibers using parallel inductive-plates assisted electrospinning. NANOTECHNOLOGY 2021; 32:265303. [PMID: 33740778 DOI: 10.1088/1361-6528/abf073] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
Electrospinning is a simple, cost-effective, and versatile technique for fabrication of nanofibers. However, nanofibers obtained from the conventional electrospinning are typically disordered, which seriously limits their application. In this work, we present a novel and facile technique to obtain aligned nanofibers with high efficiency by using parallel inductive-plates assisted electrospinning (PIES). In this new electrospinning setup, the electrostatic spinneret is contained in a pair of parallel inductive-plates, which can change the shape and direction of the electric field line during the electrospinning so as to control the flight trajectory and spatial alignment of the spinning nanofibers. This electrospinning setup can divide the electric field line into two parts which are respectively directed to the edge of the upper and lower inductive-plates. Then the nanofibers move along the electric field line, suspend and align between the parallel inductive-plates. Finally, the well aligned nanofibers could be easily transferred onto other substrates for further characterizations and applications. The aligned nanofibers with an average diameter of 469 ± 115 nm and a length as long as 140 mm were successfully achieved by using PIES technique. Moreover, nanofiber arrays with different cross angles and three-dimensional films formed by the aligned nanofibers were also facilely obtained. The novel PIES developed in this work has been proved to be a facile, cost-effective and promising approach to prepare aligned nanofibers for a wide range of applications.
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Affiliation(s)
- Shijie Su
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, People's Republic of China
| | - Junsheng Liang
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, People's Republic of China
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116023, People's Republic of China
| | - Shuangchao Xu
- Equipment Management and Support College, Engineering University of People's Armed Police, Xi'an 710086, People's Republic of China
| | - Xiaojian Li
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, People's Republic of China
| | - Wenwen Xin
- Key Laboratory for Micro/Nano Technology and System of Liaoning Province, Dalian University of Technology, Dalian 116023, People's Republic of China
| | - Zizhu Wang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116023, People's Republic of China
| | - Dazhi Wang
- Key Laboratory for Precision and Non-Traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116023, People's Republic of China
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24
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Korniienko V, Husak Y, Yanovska A, Banasiuk R, Yusupova A, Savchenko A, Holubnycha V, Pogorielov M. Functional and biological characterization of chitosan electrospun nanofibrous membrane nucleated with silver nanoparticles. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01808-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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25
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Doostmohammadi M, Forootanfar H, Shakibaie M, Torkzadeh-Mahani M, Rahimi HR, Jafari E, Ameri A, Amirheidari B. Bioactive anti-oxidative polycaprolactone/gelatin electrospun nanofibers containing selenium nanoparticles/vitamin E for wound dressing applications. J Biomater Appl 2021; 36:193-209. [PMID: 33722085 DOI: 10.1177/08853282211001359] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this study, polycaprolactone/gelatin (PCL/GEL) electrospun nanofibers containing biogenic selenium nanoparticles (Se NPs) and Se NPs/vitamin E (VE) with average diameters of 397.8 nm and 279.5 nm, respectively (as determined by SEM inspection) were prepared and their effect on wound healing was evaluated using in-vivo studies. The energy dispersive X-ray (EDX) mapping, TEM micrograph, and FTIR spectra of the prepared nanofibers strongly demonstrated well entrapment of Se NPs and VE into scaffolds. An amount of 57% Se NPs and 43% VE were gradually released from PCL/GEL/Se NPs/VE scaffold after 4 days immersion in PBS solution (pH 7.4). The both PCL/GEL/Se NPs and PCL/GEL/Se NPs/VE scaffolds supported 3T3 cell proliferation and attachment as confirmed by MTT assay and SEM imaging. Complete re-epithelialization, low level of edema and inflammatory cells in coordination with high level of oriented collagens demonstrated the wound healing activity of PCL/GEL/Se NPs/VE. Besides, significant antioxidant efficacy of PCL/GEL/Se NPs and PCL/GEL/Se NPs/VE scaffolds was demonstrated according to GSH and MDA assays. To sum up, the prepared PCL/GEL/Se NPs/VE scaffold in the present study represented suitable healing effect on animal model which candidate it for further studies.
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Affiliation(s)
- Mohsen Doostmohammadi
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Forootanfar
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Mojtaba Shakibaie
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran.,Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Masoud Torkzadeh-Mahani
- Department of Biotechnology, Institute of Science, High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
| | - Hamid-Reza Rahimi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Elham Jafari
- Pathology and Stem Cells Research Center, Department of Pathology, Kerman University of Medical Science, Kerman, Iran
| | - Alieh Ameri
- Department of Medicinal Chemistry, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
| | - Bagher Amirheidari
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy, Kerman University of Medical Sciences, Kerman, Iran
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26
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Biofabrication of aligned structures that guide cell orientation and applications in tissue engineering. Biodes Manuf 2021. [DOI: 10.1007/s42242-020-00104-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Abstract
This paper investigates the mechanical properties of oriented polyvinyl chloride (PVC) nanofiber mats, which, were obtained by electrospinning a PVC solution. PVC was dissolved in a solvent mixture of tetrahydrofuran/dimethylformamide. Electrospinning parameters used in our work were, voltage 20 kV; flow rate 0.5 mL/h; the distance between the syringe tip and collector was 15 cm. The rotating speed of the drum collector was varied from 500 to 2500 rpm with a range of 500 rpm. Nanofiber mats were characterized by scanning electron microscope, thermogravimetric analysis, differential scanning calorimetry methods. The mechanical properties of PVC nanofiber mats, such as tensile strength, Young’s modulus, thermal degradation, and glass transition temperature were also analyzed. It was shown that, by increasing the collector’s rotation speed from 0 (flat plate collector) to 2500 rpm (drum collector), the average diameter of PVC nanofibers decreased from 313 ± 52 to 229 ± 47 nm. At the same time, it was observed that the mechanical properties of the resulting nanofiber mats were improved: tensile strength increased from 2.2 ± 0.2 MPa to 9.1 ± 0.3 MPa, Young’s modulus from 53 ± 14 to 308 ± 19 MPa. Thermogravimetric analysis measurements showed that there was no difference in the process of thermal degradation of nanofiber mats and PVC powders. On the other hand, the glass transition temperature of nanofiber mats and powders did show different values, such values were 77.5 °C and 83.2 °C, respectively.
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Citeroni MR, Ciardulli MC, Russo V, Della Porta G, Mauro A, El Khatib M, Di Mattia M, Galesso D, Barbera C, Forsyth NR, Maffulli N, Barboni B. In Vitro Innovation of Tendon Tissue Engineering Strategies. Int J Mol Sci 2020; 21:E6726. [PMID: 32937830 PMCID: PMC7555358 DOI: 10.3390/ijms21186726] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/06/2020] [Accepted: 09/07/2020] [Indexed: 12/12/2022] Open
Abstract
Tendinopathy is the term used to refer to tendon disorders. Spontaneous adult tendon healing results in scar tissue formation and fibrosis with suboptimal biomechanical properties, often resulting in poor and painful mobility. The biomechanical properties of the tissue are negatively affected. Adult tendons have a limited natural healing capacity, and often respond poorly to current treatments that frequently are focused on exercise, drug delivery, and surgical procedures. Therefore, it is of great importance to identify key molecular and cellular processes involved in the progression of tendinopathies to develop effective therapeutic strategies and drive the tissue toward regeneration. To treat tendon diseases and support tendon regeneration, cell-based therapy as well as tissue engineering approaches are considered options, though none can yet be considered conclusive in their reproduction of a safe and successful long-term solution for full microarchitecture and biomechanical tissue recovery. In vitro differentiation techniques are not yet fully validated. This review aims to compare different available tendon in vitro differentiation strategies to clarify the state of art regarding the differentiation process.
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Affiliation(s)
- Maria Rita Citeroni
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, 64100 Teramo, Italy; (V.R.); (A.M.); (M.E.K.); (M.D.M.); (B.B.)
| | - Maria Camilla Ciardulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy; (M.C.C.); (G.D.P.); (N.M.)
| | - Valentina Russo
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, 64100 Teramo, Italy; (V.R.); (A.M.); (M.E.K.); (M.D.M.); (B.B.)
| | - Giovanna Della Porta
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy; (M.C.C.); (G.D.P.); (N.M.)
- Interdepartment Centre BIONAM, Università di Salerno, via Giovanni Paolo I, 84084 Fisciano (SA), Italy
| | - Annunziata Mauro
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, 64100 Teramo, Italy; (V.R.); (A.M.); (M.E.K.); (M.D.M.); (B.B.)
| | - Mohammad El Khatib
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, 64100 Teramo, Italy; (V.R.); (A.M.); (M.E.K.); (M.D.M.); (B.B.)
| | - Miriam Di Mattia
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, 64100 Teramo, Italy; (V.R.); (A.M.); (M.E.K.); (M.D.M.); (B.B.)
| | - Devis Galesso
- Fidia Farmaceutici S.p.A., via Ponte della Fabbrica 3/A, 35031 Abano Terme (PD), Italy; (D.G.); (C.B.)
| | - Carlo Barbera
- Fidia Farmaceutici S.p.A., via Ponte della Fabbrica 3/A, 35031 Abano Terme (PD), Italy; (D.G.); (C.B.)
| | - Nicholas R. Forsyth
- Guy Hilton Research Centre, School of Pharmacy and Bioengineering, Keele University, Thornburrow Drive, Stoke on Trent ST4 7QB, UK;
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende, 84081 Baronissi (SA), Italy; (M.C.C.); (G.D.P.); (N.M.)
- Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Via San Leonardo 1, 84131 Salerno, Italy
- Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, Queen Mary University of London, 275 Bancroft Road, London E1 4DG, UK
- School of Pharmacy and Bioengineering, Keele University School of Medicine, Thornburrow Drive, Stoke on Trent ST5 5BG, UK
| | - Barbara Barboni
- Unit of Basic and Applied Biosciences, Faculty of Bioscience and Agro-Food and Environmental Technology, University of Teramo, 64100 Teramo, Italy; (V.R.); (A.M.); (M.E.K.); (M.D.M.); (B.B.)
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Croitoru AM, Ficai D, Ficai A, Mihailescu N, Andronescu E, Turculet CF. Nanostructured Fibers Containing Natural or Synthetic Bioactive Compounds in Wound Dressing Applications. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2407. [PMID: 32456196 PMCID: PMC7287851 DOI: 10.3390/ma13102407] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 05/11/2020] [Accepted: 05/21/2020] [Indexed: 12/15/2022]
Abstract
The interest in wound healing characteristics of bioactive constituents and therapeutic agents, especially natural compounds, is increasing because of their therapeutic properties, cost-effectiveness, and few adverse effects. Lately, nanocarriers as a drug delivery system have been actively investigated and applied in medical and therapeutic applications. In recent decades, researchers have investigated the incorporation of natural or synthetic substances into novel bioactive electrospun nanofibrous architectures produced by the electrospinning method for skin substitutes. Therefore, the development of nanotechnology in the area of dressings that could provide higher performance and a synergistic effect for wound healing is needed. Natural compounds with antimicrobial, antibacterial, and anti-inflammatory activity in combination with nanostructured fibers represent a future approach due to the increased wound healing process and regeneration of the lost tissue. This paper presents different approaches in producing electrospun nanofibers, highlighting the electrospinning process used in fabricating innovative wound dressings that are able to release natural and/or synthetic substances in a controlled way, thus enhancing the healing process.
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Affiliation(s)
- Alexa-Maria Croitoru
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
| | - Denisa Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
| | - Anton Ficai
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
- Academy of Romanian Scientists, Spl. Independentei 54, 050094 Bucharest, Romania
| | - Natalia Mihailescu
- Laser Department, National Institute for Laser, Plasma & Radiation Physics, Atomistilor St. 409, 077125 Magurele, Romania
| | - Ecaterina Andronescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gh. Polizu St. 1-7, 011061 Bucharest, Romania; (A.-M.C.); (D.F.); (A.F.); (E.A.)
- Academy of Romanian Scientists, Spl. Independentei 54, 050094 Bucharest, Romania
| | - Claudiu Florin Turculet
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Eroii Sanitari St. 8, 050474 Bucharest, Romania;
- Emergency Hospital Floreasca Bucharest, Calea Floreasca St. 8, 014461 Bucharest, Romania
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30
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Mueller Matrix Measurement of Electrospun Fiber Scaffolds for Tissue Engineering. Polymers (Basel) 2019; 11:polym11122062. [PMID: 31835798 PMCID: PMC6960730 DOI: 10.3390/polym11122062] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 11/28/2019] [Accepted: 12/09/2019] [Indexed: 12/29/2022] Open
Abstract
Electrospun fiber scaffolds are gaining in importance in the area of tissue engineering. They can be used, for example, to fabricate graded implants to mimic the tendon bone junction. For the grading of the tensile strength of the fiber scaffolds, the orientation of the fibers plays a major role. This is currently measured by hand in scanning electron microscope (SEM) images. In this work, a correlation between polarimetric information generated by measuring the Mueller matrix (MM) and the orientation of the fibers of electrospun fiber scaffolds is reported. For this, the MM of fiber scaffolds, which were manufactured with different production parameters, was measured and analyzed. These data were correlated with fiber orientation and mechanical properties, which were evaluated in an established manner. We found that by measurement of the MM the production parameters as well as the relative orientation of the fibers in space can be determined. Thus, the MM measurement is suitable as an alternative tool for non-contact, non-destructive determination of the production parameters and, thus, the degree of alignment of electrospun fiber scaffolds.
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31
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Pathalamuthu P, Siddharthan A, Giridev VR, Victoria V, Thangam R, Sivasubramanian S, Savariar V, Hemamalini T. Enhanced performance of Aloe vera incorporated chitosan-polyethylene oxide electrospun wound scaffold produced using novel Spirograph based collector assembly. Int J Biol Macromol 2019; 140:808-824. [PMID: 31437502 DOI: 10.1016/j.ijbiomac.2019.08.158] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/11/2019] [Accepted: 08/17/2019] [Indexed: 11/17/2022]
Abstract
Spirograph is a geometric drawing that produces mathematical roulette curves of the variety technically known as hypotrochoids and epitrochoids. This paper presents a research on a novel Spirograph Based Mechanical System (SBMS) meant for the production of electrospun mat with near uniform characteristics for wound dressing applications. A combination of natural (Chitosan) and artificial (Polyethylene oxide) polymer, along with Aloe vera plant extract has been evaluated as a material for wound dressing application. The improvement in the mechanical property, in vitro and in vivo studies indicate developed SBMS compared to the typical collectors has been found suitable for producing electrospun mat for wound dressing applications.
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Affiliation(s)
- P Pathalamuthu
- Dept. of Mechanical Engineering, Anand Institute of Higher Technology, Chennai, India.
| | - A Siddharthan
- Dept. of Production Engineering, Anna University, Chennai, India.
| | - V R Giridev
- Dept. of Textile Technology, Anna University, Chennai, India.
| | - Victor Victoria
- Center for Environmental Research & Development, LIFE, Loyola College, Chennai, India
| | - Ramar Thangam
- CSIR-Central Leather Research Institute, Chennai, India
| | | | - Vincent Savariar
- Center for Environmental Research & Development, LIFE, Loyola College, Chennai, India
| | - T Hemamalini
- Dept. of Textile Technology, Anna University, Chennai, India
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