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Behere I, Ingavle G. In vitro and in vivo advancement of multifunctional electrospun nanofiber scaffolds in wound healing applications: Innovative nanofiber designs, stem cell approaches, and future perspectives. J Biomed Mater Res A 2021; 110:443-461. [PMID: 34390324 DOI: 10.1002/jbm.a.37290] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/30/2021] [Accepted: 07/29/2021] [Indexed: 01/10/2023]
Abstract
The skin is one of the most essential tissues in the human body, interacting with the outside environment and shielding the body from diseases and excessive water loss. Hydrogels, decellularized porcine dermal matrix, and lyophilized polymer scaffolds have all been used in studies of skin wound repair, wound dressing, and skin tissue engineering, however, these materials cannot replicate the nanofibrous architecture of the skin's native extracellular matrix (ECM). Electrospun nanofibers are a fascinating new form of nanomaterials with tremendous potential across a broad spectrum of applications in the biomedical field, including wound dressings, wound healing scaffolds, regenerative medicine, bioengineering of skin tissue, and multifaceted drug delivery. This article reviews recent in vitro and in vivo developments in multifunctional electrospun nanofibers (MENs) for wound healing. This review begins with an introduction to the electrospinning process, its principle, and the processing parameters which have a significant impact on the nanofiber properties. It then discusses the various geometries and advantages of MEN scaffolds produced by different innovative electrospinning techniques for wound healing applications when used in combination with stem cells. This review also discusses some of the possible future nanofiber-based models that could be used. Finally, we conclude with potential perspectives and conclusions in this area.
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Affiliation(s)
- Isha Behere
- Symbiosis Centre for Stem Cell Research (SCSCR), Symbiosis International (Deemed University), Pune, India
| | - Ganesh Ingavle
- Symbiosis Centre for Stem Cell Research (SCSCR), Symbiosis International (Deemed University), Pune, India
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52
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Gungor M, Sagirli MN, Calisir MD, Selcuk S, Kilic A. Developing centrifugal spun thermally cross‐linked gelatin based fibrous biomats for antibacterial wound dressing applications. POLYM ENG SCI 2021. [DOI: 10.1002/pen.25759] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Melike Gungor
- Textile Engineering Department, TEMAG Labs, Faculty of Textile Technology and Design Istanbul Technical University Istanbul Turkey
| | - Merve Nur Sagirli
- Textile Engineering Department, TEMAG Labs, Faculty of Textile Technology and Design Istanbul Technical University Istanbul Turkey
| | - Mehmet Durmus Calisir
- Textile Engineering Department, TEMAG Labs, Faculty of Textile Technology and Design Istanbul Technical University Istanbul Turkey
- Electrical & Electronic Engineering Department, Faculty of Engineering and Architecture Recep Tayyip Erdogan University Rize Turkey
| | - Sule Selcuk
- Textile Engineering Department, TEMAG Labs, Faculty of Textile Technology and Design Istanbul Technical University Istanbul Turkey
| | - Ali Kilic
- Textile Engineering Department, TEMAG Labs, Faculty of Textile Technology and Design Istanbul Technical University Istanbul Turkey
- R&D Department Areka Group LLC Istanbul Turkey
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53
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Mehta P, Rasekh M, Patel M, Onaiwu E, Nazari K, Kucuk I, Wilson PB, Arshad MS, Ahmad Z, Chang MW. Recent applications of electrical, centrifugal, and pressurised emerging technologies for fibrous structure engineering in drug delivery, regenerative medicine and theranostics. Adv Drug Deliv Rev 2021; 175:113823. [PMID: 34089777 DOI: 10.1016/j.addr.2021.05.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/11/2021] [Accepted: 05/31/2021] [Indexed: 12/16/2022]
Abstract
Advancements in technology and material development in recent years has led to significant breakthroughs in the remit of fiber engineering. Conventional methods such as wet spinning, melt spinning, phase separation and template synthesis have been reported to develop fibrous structures for an array of applications. However, these methods have limitations with respect to processing conditions (e.g. high processing temperatures, shear stresses) and production (e.g. non-continuous fibers). The materials that can be processed using these methods are also limited, deterring their use in practical applications. Producing fibrous structures on a nanometer scale, in sync with the advancements in nanotechnology is another challenge met by these conventional methods. In this review we aim to present a brief overview of conventional methods of fiber fabrication and focus on the emerging fiber engineering techniques namely electrospinning, centrifugal spinning and pressurised gyration. This review will discuss the fundamental principles and factors governing each fabrication method and converge on the applications of the resulting spun fibers; specifically, in the drug delivery remit and in regenerative medicine.
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Affiliation(s)
- Prina Mehta
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Manoochehr Rasekh
- College of Engineering, Design and Physical Sciences, Brunel University London, Middlesex UB8 3PH, UK
| | - Mohammed Patel
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Ekhoerose Onaiwu
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Kazem Nazari
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - I Kucuk
- Institute of Nanotechnology, Gebze Technical University, 41400 Gebze, Turkey
| | - Philippe B Wilson
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell NG25 0QF, UK
| | | | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Ming-Wei Chang
- Nanotechnology and Integrated Bioengineering Centre, University of Ulster, Jordanstown Campus, Newtownabbey, Northern Ireland BT37 0QB, UK.
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Siddique T, Dutta NK, Choudhury NR. Mixed-Matrix Membrane Fabrication for Water Treatment. MEMBRANES 2021; 11:557. [PMID: 34436320 PMCID: PMC8402158 DOI: 10.3390/membranes11080557] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/10/2021] [Accepted: 07/16/2021] [Indexed: 11/21/2022]
Abstract
In recent years, technology for the fabrication of mixed-matrix membranes has received significant research interest due to the widespread use of mixed-matrix membranes (MMMs) for various separation processes, as well as biomedical applications. MMMs possess a wide range of properties, including selectivity, good permeability of desired liquid or gas, antifouling behavior, and desired mechanical strength, which makes them preferable for research nowadays. However, these properties of MMMs are due to their tailored and designed structure, which is possible due to a fabrication process with controlled fabrication parameters and a choice of appropriate materials, such as a polymer matrix with dispersed nanoparticulates based on a typical application. Therefore, several conventional fabrication methods such as a phase-inversion process, interfacial polymerization, co-casting, coating, electrospinning, etc., have been implemented for MMM preparation, and there is a drive for continuous modification of advanced, easy, and economic MMM fabrication technology for industrial-, small-, and bulk-scale production. This review focuses on different MMM fabrication processes and the importance of various parameter controls and membrane efficiency, as well as tackling membrane fouling with the use of nanomaterials in MMMs. Finally, future challenges and outlooks are highlighted.
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Affiliation(s)
| | - Naba K. Dutta
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia; or
| | - Namita Roy Choudhury
- Chemical and Environmental Engineering, School of Engineering, RMIT University, Melbourne, VIC 3000, Australia; or
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55
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Rodriguez-Cabello JC, Gonzalez De Torre I, González-Pérez M, González-Pérez F, Montequi I. Fibrous Scaffolds From Elastin-Based Materials. Front Bioeng Biotechnol 2021; 9:652384. [PMID: 34336798 PMCID: PMC8323661 DOI: 10.3389/fbioe.2021.652384] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 06/25/2021] [Indexed: 11/28/2022] Open
Abstract
Current cutting-edge strategies in biomaterials science are focused on mimicking the design of natural systems which, over millions of years, have evolved to exhibit extraordinary properties. Based on this premise, one of the most challenging tasks is to imitate the natural extracellular matrix (ECM), due to its ubiquitous character and its crucial role in tissue integrity. The anisotropic fibrillar architecture of the ECM has been reported to have a significant influence on cell behaviour and function. A new paradigm that pivots around the idea of incorporating biomechanical and biomolecular cues into the design of biomaterials and systems for biomedical applications has emerged in recent years. Indeed, current trends in materials science address the development of innovative biomaterials that include the dynamics, biochemistry and structural features of the native ECM. In this context, one of the most actively studied biomaterials for tissue engineering and regenerative medicine applications are nanofiber-based scaffolds. Herein we provide a broad overview of the current status, challenges, manufacturing methods and applications of nanofibers based on elastin-based materials. Starting from an introduction to elastin as an inspiring fibrous protein, as well as to the natural and synthetic elastin-based biomaterials employed to meet the challenge of developing ECM-mimicking nanofibrous-based scaffolds, this review will follow with a description of the leading strategies currently employed in nanofibrous systems production, which in the case of elastin-based materials are mainly focused on supramolecular self-assembly mechanisms and the use of advanced manufacturing technologies. Thus, we will explore the tendency of elastin-based materials to form intrinsic fibers, and the self-assembly mechanisms involved. We will describe the function and self-assembly mechanisms of silk-like motifs, antimicrobial peptides and leucine zippers when incorporated into the backbone of the elastin-based biomaterial. Advanced polymer-processing technologies, such as electrospinning and additive manufacturing, as well as their specific features, will be presented and reviewed for the specific case of elastin-based nanofiber manufacture. Finally, we will present our perspectives and outlook on the current challenges facing the development of nanofibrous ECM-mimicking scaffolds based on elastin and elastin-like biomaterials, as well as future trends in nanofabrication and applications.
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Affiliation(s)
- Jose Carlos Rodriguez-Cabello
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Israel Gonzalez De Torre
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Miguel González-Pérez
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Fernando González-Pérez
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
| | - Irene Montequi
- BIOFORGE, University of Valladolid, Valladolid, Spain
- Center for Biomedical Research in the Network in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Madrid, Spain
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Shanmugam V, Babu K, Garrison TF, Capezza AJ, Olsson RT, Ramakrishna S, Hedenqvist MS, Singha S, Bartoli M, Giorcelli M, Sas G, Försth M, Das O, Restás Á, Berto F. Potential natural polymer-based nanofibres for the development of facemasks in countering viral outbreaks. J Appl Polym Sci 2021; 138:50658. [PMID: 34149062 PMCID: PMC8206777 DOI: 10.1002/app.50658] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/13/2022]
Abstract
The global coronavirus disease 2019 (COVID-19) pandemic has rapidly increased the demand for facemasks as a measure to reduce the rapid spread of the pathogen. Throughout the pandemic, some countries such as Italy had a monthly demand of ca. 90 million facemasks. Domestic mask manufacturers are capable of manufacturing 8 million masks each week, although the demand was 40 million per week during March 2020. This dramatic increase has contributed to a spike in the generation of facemask waste. Facemasks are often manufactured with synthetic materials that are non-biodegradable, and their increased usage and improper disposal are raising environmental concerns. Consequently, there is a strong interest for developing biodegradable facemasks made with for example, renewable nanofibres. A range of natural polymer-based nanofibres has been studied for their potential to be used in air filter applications. This review article examines potential natural polymer-based nanofibres along with their filtration and antimicrobial capabilities for developing biodegradable facemask that will promote a cleaner production.
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Affiliation(s)
- Vigneshwaran Shanmugam
- Faculty of Mechanical EngineeringSaveetha School of Engineering, Saveetha Institute of Medical and Technical SciencesChennaiTamil NaduIndia
| | - Karthik Babu
- Department of Mechanical EngineeringCenturion University of Technology and ManagementSitapurOdishaIndia
| | - Thomas F. Garrison
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahranSaudi Arabia
| | - Antonio J. Capezza
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
- Department of Plant Breeding, Faculty of Landscape ArchitectureHorticulture and Crop Production Science, SLU Swedish University of Agricultural SciencesAlnarpSweden
| | - Richard T. Olsson
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Faculty of EngineeringCenter for Nanofibres and NanotechnologySingaporeSingapore
| | - Mikael S. Hedenqvist
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Shuvra Singha
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Mattia Bartoli
- Department of applied science and technology (DISAT)Politecnico di TorinoTorinoItaly
| | - Mauro Giorcelli
- Department of applied science and technology (DISAT)Politecnico di TorinoTorinoItaly
- Department of applied science and technology (DISAT)Istituto Italiano di Tecnologia (IIT)TorinoItaly
| | - Gabriel Sas
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Michael Försth
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Oisik Das
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Ágoston Restás
- Department of Fire Protection and Rescue ControlNational University of Public ServiceBudapestHungary
| | - Filippo Berto
- Department of Mechanical EngineeringNorwegian University of Science and TechnologyTrondheimNorway
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57
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Liu W, Walker G, Price S, Yang X, Li J, Bunt C. Electrospun Membranes as a Porous Barrier for Molecular Transport: Membrane Characterization and Release Assessment. Pharmaceutics 2021; 13:916. [PMID: 34205650 PMCID: PMC8235673 DOI: 10.3390/pharmaceutics13060916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/17/2021] [Accepted: 06/18/2021] [Indexed: 11/16/2022] Open
Abstract
Electrospun nanofibers have been extensively studied for encapsulated drugs releasing from the inside of the fiber matrix, but have been barely looked at for their potential to control release as a semi-permeable membrane. This study investigated molecular transport behaviors across nanofiber membranes with different micro-structure sizes and compositions. Four types of membranes were made by 5% and 10% poly (ε-caprolactone) (PCL) solutions electro-spun with or without 50 nm calcium carbonate (CaCO3) nanoparticles. The membranes were tested for thickness, fiber diameter, pore size, porosity, tensile strength and elongation, contact angle of water and their impacts on molecular transport behaviors. The presence of the CaCO3 nanoparticles made the 5% membranes stronger and stiffer but the 10% membranes weaker and less stiff due to the different (covering or embedded) locations of the nanoparticles with the corresponding fibers. Solute transport studies using caffeine as the model drug found the 5% membranes further retarded release from the 10% membranes, regardless of only half the amount of material being used for synthesis. The addition of CaCO3 nanoparticles aided the water permeation process and accelerated initial transports. The difference in release profiles between 5% and 10% membranes suggests different release mechanisms, with membrane-permeability dominated release for 5% PCL membranes and solute-concentration-gradient dominated release for 10% PCL membranes.
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Affiliation(s)
- Weiyi Liu
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7608, New Zealand; (W.L.); (S.P.)
| | - Greg Walker
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand;
| | - Sally Price
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7608, New Zealand; (W.L.); (S.P.)
| | - Xiangdong Yang
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and Fertiliser, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; (X.Y.); (J.L.)
| | - Juan Li
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences/Key Laboratory of Plant Nutrition and Fertiliser, Ministry of Agriculture and Rural Affairs, Beijing 100081, China; (X.Y.); (J.L.)
| | - Craig Bunt
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7608, New Zealand; (W.L.); (S.P.)
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58
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Ehrmann A. Non-Toxic Crosslinking of Electrospun Gelatin Nanofibers for Tissue Engineering and Biomedicine-A Review. Polymers (Basel) 2021; 13:1973. [PMID: 34203958 PMCID: PMC8232702 DOI: 10.3390/polym13121973] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/12/2021] [Accepted: 06/13/2021] [Indexed: 02/04/2023] Open
Abstract
Electrospinning can be used to prepare nanofiber mats from diverse polymers, polymer blends, or polymers doped with other materials. Amongst this broad range of usable materials, biopolymers play an important role in biotechnological, biomedical, and other applications. However, several of them are water-soluble, necessitating a crosslinking step after electrospinning. While crosslinking with glutaraldehyde or other toxic chemicals is regularly reported in the literature, here, we concentrate on methods applying non-toxic or low-toxic chemicals, and enzymatic as well as physical methods. Making gelatin nanofibers non-water soluble by electrospinning them from a blend with non-water soluble polymers is another method described here. These possibilities are described together with the resulting physical properties, such as swelling behavior, mechanical strength, nanofiber morphology, or cell growth and proliferation on the crosslinked nanofiber mats. For most of these non-toxic crosslinking methods, the degree of crosslinking was found to be lower than for crosslinking with glutaraldehyde and other common toxic chemicals.
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Affiliation(s)
- Andrea Ehrmann
- Working Group Textile Technologies, Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences, 33619 Bielefeld, Germany
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59
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Taskin MB, Tylek T, Blum C, Böhm C, Wiesbeck C, Groll J. Inducing Immunomodulatory Effects on Human Macrophages by Multifunctional NCO-sP(EO- stat-PO)/Gelatin Hydrogel Nanofibers. ACS Biomater Sci Eng 2021; 7:3166-3178. [PMID: 34114792 DOI: 10.1021/acsbiomaterials.1c00232] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Endowing materials and scaffolds with immunomodulatory properties has evolved into a very active field of research. However, combining such effects with multifunctionality regarding cell adhesion and manipulation is still challenging due to the intricate nature of cell-substrate interactions that require fine-tuning of scaffold properties. Here, we reported electrospinning of a well-known biopolymer, gelatin, together with six-arm star-shaped poly(ethylene oxide-stat-propylene oxide) prepolymer with isocyanate end groups (NCO-sP(EO-stat-PO)) as a reactive prepolymer cross-linker. Covalent coupling of two components during and after processing yielded a network of hydrogel fibers that was remarkably stable under aqueous and also proteolytic conditions without the need for extra cross-linking, with a significant increase in stability with increasing NCO-sP(EO-stat-PO) content. When seeded with human macrophages, cells adhered and spread on the fibers and were found highly viable after 7 days of culture across all scaffolds. Furthermore, hybrid fibrous meshes upregulated the expression of a prohealing gene, CD206, while downregulating proinflammatory genes, IL-1β and IL-8. Markedly, NCO-sP(EO-stat-PO)-rich samples induced a significantly reduced release of proinflammatory cytokines, IL-1β, IL-6, and IL-8. Finally, we successfully conjugated IL-4 to NCO-sP(EO-stat-PO) that effectively steered macrophages into a prohealing M2 type, demonstrating additional and robust control over the immunomodulatory feature of the scaffolds.
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Affiliation(s)
- Mehmet Berat Taskin
- Department of Functional Materials in Medicine and Dentistry at the Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070 Würzburg, Germany
| | - Tina Tylek
- Department of Functional Materials in Medicine and Dentistry at the Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070 Würzburg, Germany
| | - Carina Blum
- Department of Functional Materials in Medicine and Dentistry at the Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070 Würzburg, Germany
| | - Christoph Böhm
- Department of Functional Materials in Medicine and Dentistry at the Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070 Würzburg, Germany
| | - Christina Wiesbeck
- Department of Functional Materials in Medicine and Dentistry at the Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070 Würzburg, Germany
| | - Jürgen Groll
- Department of Functional Materials in Medicine and Dentistry at the Institute of Biofabrication and Functional Materials, University of Würzburg and KeyLab Polymers for Medicine of the Bavarian Polymer Institute (BPI), Pleicherwall 2, 97070 Würzburg, Germany
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60
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Bhutada SS, Sriram M, Katti DS. Sulfated carboxymethylcellulose conjugated electrospun fibers as a growth factor presenting system for tissue engineering. Carbohydr Polym 2021; 268:118256. [PMID: 34127227 DOI: 10.1016/j.carbpol.2021.118256] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 05/08/2021] [Accepted: 05/21/2021] [Indexed: 01/08/2023]
Abstract
Inspired by the natural electrostatic interaction of cationic growth factors with anionic sulfated glycosaminoglycans in the extracellular matrix, we developed electrospun poly(hydroxybutyrate)/gelatin (PG) fibers conjugated with anionic sulfated carboxymethylcellulose (sCMC) to enable growth factor immobilization via electrostatic interaction for tissue engineering. The fibrous scaffold bound cationic molecules, was cytocompatible and exhibited a remarkable morphological and functional stability. Transforming growth factor-β1 immobilized on the sCMC conjugated fibers was retained for at least 4 weeks with negligible release (3%). Immobilized fibroblast growth factor-2 and connective tissue growth factor were bioactive and induced proliferation and fibrogenic differentiation of infrapatellar fat pad derived mesenchymal stem cells respectively with efficiency similar to or better than free growth factors. Taken together, our studies demonstrate that sCMC conjugated PG fibers can immobilize and retain function of cationic growth factors and hence show potential for use in various tissue engineering applications.
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Affiliation(s)
- Sarang S Bhutada
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India; Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
| | - M Sriram
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India; Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
| | - Dhirendra S Katti
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India; Mehta Family Centre for Engineering in Medicine, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India.
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61
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Physicochemical Properties and Biocompatibility of Electrospun Polycaprolactone/Gelatin Nanofibers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18094764. [PMID: 33947053 PMCID: PMC8125554 DOI: 10.3390/ijerph18094764] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 11/17/2022]
Abstract
Tissue-engineered substitutes have shown great promise as a potential replacement for current tissue grafts to treat tendon/ligament injury. Herein, we have fabricated aligned polycaprolactone (PCL) and gelatin (GT) nanofibers and further evaluated their physicochemical properties and biocompatibility. PCL and GT were mixed at a ratio of 100:0, 70:30, 50:50, 30:70, 0:100, and electrospun to generate aligned nanofibers. The PCL/GT nanofibers were assessed to determine the diameter, alignment, water contact angle, degradation, and surface chemical analysis. The effects on cells were evaluated through Wharton's jelly-derived mesenchymal stem cell (WJ-MSC) viability, alignment and tenogenic differentiation. The PCL/GT nanofibers were aligned and had a mean fiber diameter within 200-800 nm. Increasing the GT concentration reduced the water contact angle of the nanofibers. GT nanofibers alone degraded fastest, observed only within 2 days. Chemical composition analysis confirmed the presence of PCL and GT in the nanofibers. The WJ-MSCs were aligned and remained viable after 7 days with the PCL/GT nanofibers. Additionally, the PCL/GT nanofibers supported tenogenic differentiation of WJ-MSCs. The fabricated PCL/GT nanofibers have a diameter that closely resembles the native tissue's collagen fibrils and have good biocompatibility. Thus, our study demonstrated the suitability of PCL/GT nanofibers for tendon/ligament tissue engineering applications.
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62
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Álvarez-Castillo E, Felix M, Bengoechea C, Guerrero A. Proteins from Agri-Food Industrial Biowastes or Co-Products and Their Applications as Green Materials. Foods 2021; 10:981. [PMID: 33947093 PMCID: PMC8145534 DOI: 10.3390/foods10050981] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 02/06/2023] Open
Abstract
A great amount of biowastes, comprising byproducts and biomass wastes, is originated yearly from the agri-food industry. These biowastes are commonly rich in proteins and polysaccharides and are mainly discarded or used for animal feeding. As regulations aim to shift from a fossil-based to a bio-based circular economy model, biowastes are also being employed for producing bio-based materials. This may involve their use in high-value applications and therefore a remarkable revalorization of those resources. The present review summarizes the main sources of protein from biowastes and co-products of the agri-food industry (i.e., wheat gluten, potato, zein, soy, rapeseed, sunflower, protein, casein, whey, blood, gelatin, collagen, keratin, and algae protein concentrates), assessing the bioplastic application (i.e., food packaging and coating, controlled release of active agents, absorbent and superabsorbent materials, agriculture, and scaffolds) for which they have been more extensively produced. The most common wet and dry processes to produce protein-based materials are also described (i.e., compression molding, injection molding, extrusion, 3D-printing, casting, and electrospinning), as well as the main characterization techniques (i.e., mechanical and rheological properties, tensile strength tests, rheological tests, thermal characterization, and optical properties). In this sense, the strategy of producing materials from biowastes to be used in agricultural applications, which converge with the zero-waste approach, seems to be remarkably attractive from a sustainability prospect (including environmental, economic, and social angles). This approach allows envisioning a reduction of some of the impacts along the product life cycle, contributing to tackling the transition toward a circular economy.
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Affiliation(s)
| | | | - Carlos Bengoechea
- Departamento de Ingeniería Química, Escuela Politécnica Superior, 41011 Sevilla, Spain; (E.Á.-C.); (M.F.); (A.G.)
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63
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Affiliation(s)
- Zhi Yang
- School of Food and Advanced Technology, Massey University, Auckland, New Zealand
| | - Sahraoui Chaieb
- Lawrence Berkeley National Laboratory, Berkeley, California, USA
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64
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Dong Y, Zhao S, Lu W, Chen N, Zhu D, Li Y. Preparation and characterization of enzymatically cross-linked gelatin/cellulose nanocrystal composite hydrogels. RSC Adv 2021; 11:10794-10803. [PMID: 35423562 PMCID: PMC8695773 DOI: 10.1039/d1ra00965f] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/08/2021] [Indexed: 12/13/2022] Open
Abstract
Gelatin is an attractive hydrogel material because of its excellent biocompatibility and non-cytotoxicity, but poor mechanical properties of gelatin-based hydrogels become a big obstacle that limits their wide-spread application. To solve it, in this work, gelatin/cellulose nanocrystal composite hydrogels (Gel-TG-CNCs) were prepared using microbial transglutaminase (mTG) as the crosslinking catalyst and cellulose nanocrystals (CNCs) as reinforcements. The physicochemical properties of the composite hydrogels were investigated by thermogravimetric analysis (TGA), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The dynamic rheological measurement and uniaxial compression test were performed to study the effects of mTG and CNC contents on the storage modulus and breaking strength of the as-prepared Gel-TG-CNCs. Results showed that the addition of CNCs and mTG could significantly increase the storage modulus and breaking strength of gelatin-based hydrogels, especially when added simultaneously. The breaking strength of Gel-TG-CNCs (2%) at 25 °C can reach 1000 g which is 30 times greater than pure gelatin hydrogels. The biocompatibility of the composite hydrogels was also investigated by the MTT method with Hela cells, and the results demonstrated that the composite hydrogels maintained excellent biocompatibility. With a combination of good biocompatibility and mechanical properties, the as-prepared Gel-TG-CNCs showed potential application value in the biomedical field.
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Affiliation(s)
- Yaqi Dong
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Shouwei Zhao
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Wenhui Lu
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Nan Chen
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Deyi Zhu
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
| | - Yanchun Li
- School of Light Industry and Engineering, Qilu University of Technology (Shandong Academy of Sciences) Jinan 250353 China
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65
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Morphological and Mechanical Properties of Electrospun Polycaprolactone Scaffolds: Effect of Applied Voltage. Polymers (Basel) 2021; 13:polym13040662. [PMID: 33672211 PMCID: PMC7926916 DOI: 10.3390/polym13040662] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 12/15/2022] Open
Abstract
The aim of this work is to investigate the effect of the applied voltage on the morphological and mechanical properties of electrospun polycaprolactone (PCL) scaffolds for potential use in tissue engineering. The morphology of the scaffolds was characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), and the BET techniques for measuring the surface area and pore volume. Stress-strain curves from tensile tests were obtained for estimating the mechanical properties. Additional studies for detecting changes in the chemical structure of the electrospun PCL scaffolds by Fourier transform infrared were performed, while contact angle and X-ray diffraction analysis were realized for determining the wettability and crystallinity, respectively. The SEM, AFM and BET results demonstrate that the electrospun PCL fibers exhibit morphological changes with the applied voltage. By increasing the applied voltage (10 to 25 kV) a significate influence was observed on the fiber diameter, surface roughness, and pore volume. In addition, tensile strength, elongation, and elastic modulus increase with the applied voltage, the crystalline structure of the fibers remains constant, and the surface area and wetting of the scaffolds diminish. The morphological and mechanical properties show a clear correlation with the applied voltage and can be of great relevance for tissue engineering.
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66
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Bai L, Li Q, Yang Y, Ling S, Yu H, Liu S, Li J, Chen W. Biopolymer Nanofibers for Nanogenerator Development. RESEARCH (WASHINGTON, D.C.) 2021; 2021:1843061. [PMID: 33709081 PMCID: PMC7926511 DOI: 10.34133/2021/1843061] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 01/05/2021] [Indexed: 11/23/2022]
Abstract
The development of nanogenerators (NGs) with optimal performances and functionalities requires more novel materials. Over the past decade, biopolymer nanofibers (BPNFs) have become critical sustainable building blocks in energy-related fields because they have distinctive nanostructures and properties and can be obtained from abundant and renewable resources. This review summarizes recent advances in the use of BPNFs for NG development. We will begin by introducing various strategies for fabricating BPNFs with diverse structures and performances. Then, we will systematically present the utilization of polysaccharide and protein nanofibers for NGs. We will mainly focus on the use of BPNFs to generate bulk materials with tailored structures and properties for assembling of triboelectric and piezoelectric NGs. The use of BPNFs to construct NGs for the generation of electricity from moisture and osmosis is also discussed. Finally, we illustrate our personal perspectives on several issues that require special attention with regard to future developments in this active field.
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Affiliation(s)
- Lulu Bai
- Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Qing Li
- Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Ya Yang
- CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 101400, China
| | - Shengjie Ling
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Haipeng Yu
- Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Shouxin Liu
- Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Jian Li
- Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Wenshuai Chen
- Key Laboratory of Bio-Based Material Science and Technology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
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67
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Malik S, Sundarrajan S, Hussain T, Nazir A, Ramakrishna S. Role of Block Copolymers in Tissue Engineering Applications. Cells Tissues Organs 2021; 211:492-505. [PMID: 33596574 DOI: 10.1159/000511866] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/24/2020] [Indexed: 11/19/2022] Open
Abstract
Research on synthesis, characterization, and understanding of novel properties of nanomaterials has led researchers to exploit their potential applications. When compared to other nanotechnologies described in the literature, electrospinning has received significant interest due to its ability to synthesize novel nanostructures (such as nanofibers, nanorods, nanotubes, etc.) with distinctive properties such as high surface-to-volume ratio, porosity, various morphologies such as fibers, tubes, ribbons, mesoporous and coated structures, and so on. Various materials such as polymers, ceramics, and composites have been fabricated using the electrospinning technique. Among them, polymers, especially block copolymers, are one of the useful and niche systems studied recently owing to their unique and fascinating properties in both solution and solid state due to thermodynamic incompatibility of the blocks, that results in microphase separation. Morphology and mechanical properties of electrospun block copolymers are intensely influenced by quantity and length of soft and hard segments. They are one of the best studied systems to fit numerous applications due to a broad variety of properties they display upon varying the composition ratio and molecular weight of blocks. In this review, the synthesis, fundamentals, electrospinning, and tissue engineering application of block copolymers are highlighted.
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Affiliation(s)
- Sairish Malik
- Electrospun Materials & Polymeric Membranes Research Group (EMPMRG), National Textile University, Faisalabad, Pakistan
| | - Subramanian Sundarrajan
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Tanveer Hussain
- Electrospun Materials & Polymeric Membranes Research Group (EMPMRG), National Textile University, Faisalabad, Pakistan
| | - Ahsan Nazir
- Electrospun Materials & Polymeric Membranes Research Group (EMPMRG), National Textile University, Faisalabad, Pakistan
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore,
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68
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Nuge T, Liu Z, Liu X, Ang BC, Andriyana A, Metselaar HSC, Hoque ME. Recent Advances in Scaffolding from Natural-Based Polymers for Volumetric Muscle Injury. Molecules 2021; 26:699. [PMID: 33572728 PMCID: PMC7865392 DOI: 10.3390/molecules26030699] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/03/2021] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
Volumetric Muscle Loss (VML) is associated with muscle loss function and often untreated and considered part of the natural sequelae of trauma. Various types of biomaterials with different physical and properties have been developed to treat VML. However, much work remains yet to be done before the scaffolds can pass from the bench to the bedside. The present review aims to provide a comprehensive summary of the latest developments in the construction and application of natural polymers-based tissue scaffolding for volumetric muscle injury. Here, the tissue engineering approaches for treating volumetric muscle loss injury are highlighted and recent advances in cell-based therapies using various sources of stem cells are elaborated in detail. An overview of different strategies of tissue scaffolding and their efficacy on skeletal muscle cells regeneration and migration are presented. Furthermore, the present paper discusses a wide range of natural polymers with a special focus on proteins and polysaccharides that are major components of the extracellular matrices. The natural polymers are biologically active and excellently promote cell adhesion and growth. These bio-characteristics justify natural polymers as one of the most attractive options for developing scaffolds for muscle cell regeneration.
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Affiliation(s)
- Tamrin Nuge
- Department of Mechanical, Materials and Manufacturing Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, China; (T.N.); (Z.L.)
| | - Ziqian Liu
- Department of Mechanical, Materials and Manufacturing Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, China; (T.N.); (Z.L.)
| | - Xiaoling Liu
- Department of Mechanical, Materials and Manufacturing Engineering, Faculty of Science and Engineering, University of Nottingham Ningbo China, 199 Taikang East Road, Ningbo 315100, China; (T.N.); (Z.L.)
| | - Bee Chin Ang
- Centre of Advanced Materials, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; (A.A.); (H.S.C.M.)
- Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Andri Andriyana
- Centre of Advanced Materials, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; (A.A.); (H.S.C.M.)
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Hendrik Simon Cornelis Metselaar
- Centre of Advanced Materials, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia; (A.A.); (H.S.C.M.)
- Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
| | - Md Enamul Hoque
- Department of Biomedical Engineering, Military Institute of Science and Technology (MIST), Dhaka 1216, Bangladesh;
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69
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Madhumanchi S, Srichana T, Domb AJ. Polymeric Biomaterials. Biomed Mater 2021. [DOI: 10.1007/978-3-030-49206-9_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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70
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Ding T, Li J, Zhang X, Du L, Li Y, Li D, Kong B, Ge S. Super-assembled core/shell fibrous frameworks with dual growth factors for in situ cementum-ligament-bone complex regeneration. Biomater Sci 2021; 8:2459-2471. [PMID: 32191780 DOI: 10.1039/d0bm00102c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The regeneration of periodontal tissue defects remains a clinical challenge due to its complex tissue structure (e.g. periodontal ligament, alveolar bone and cementum) and poor self-healing ability. In situ tissue engineering has emerged as a promising approach that combines frameworks with growth factors that are specifically chosen for the recruitment of endogenous stem cells to the site of injury and to evoke the innate regenerative potential of the body. Herein, a core/shell fibrous super-assembled framework (SAF)-based sequential growth factor delivery system is developed, in which basic fibroblast growth factor (bFGF) and bone morphogenetic protein-2 (BMP-2) are designed to release in a sequential manner to facilitate in situ regeneration of the cementum-ligament-bone complex. The in situ tissue engineering framework (iTE-framework) shows ameliorated physicochemical properties and improved hydrophilicity, with an initial burst release of bFGF in the first few days, followed by a slow and constant release of BMP-2 up to 4 weeks. The iTE-framework shows excellent biocompatibility, significantly promoting the proliferation, migration and osteogenic differentiation of human periodontal ligament stem cells (PDLSCs) in vitro. After implantation in rat periodontal defects, the iTE-framework effectively triggers the recruitment of mesenchymal stem cells (MSCs) to the defect site, significantly promotes the formation of new bones, and facilitates the regeneration of the periodontal ligament and cementum tissue in vivo. Therefore, this sequential delivery system provides a promising therapeutic strategy for cementum-ligament-bone complex regeneration.
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Affiliation(s)
- Tian Ding
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China.
| | - Jianhua Li
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China.
| | - Xingshuang Zhang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China.
| | - Lingqian Du
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China.
| | - Yang Li
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China
| | - Dengwang Li
- Shandong Key Laboratory of Medical Physics and Image Processing & Shandong Provincial Engineering and Technical Center of Light Manipulations, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, iChEM, Fudan University, Shanghai 200433, China.
| | - Shaohua Ge
- Department of Periodontology, School and Hospital of Stomatology, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong 250012, China.
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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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Park JK, Pham-Nguyen OV, Yoo HS. Coaxial Electrospun Nanofibers with Different Shell Contents to Control Cell Adhesion and Viability. ACS OMEGA 2020; 5:28178-28185. [PMID: 33163800 PMCID: PMC7643203 DOI: 10.1021/acsomega.0c03902] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/09/2020] [Indexed: 05/04/2023]
Abstract
Electrospun nanofibers are widely employed as cell culture matrices because their biomimetic structures resemble a natural extracellular matrix. However, due to the limited cell infiltration into nanofibers, three-dimensional (3D) construction of a cell matrix is not easily accomplished. In this study, we developed a method for the partial digestion of a nanofiber into fragmented nanofibers composed of gelatin and polycaprolactone (PCL). The PCL shells of the coaxial fragments were subsequently removed with different concentrations of chloroform to control the remaining PCL on the shell. The swelling and exposure of the gelatin core were manipulated by the remaining PCL shells. When cells were cultivated with the fragmented nanofibers, they were spontaneously assembled on the cell sheets. The cell adhesion and proliferation were significantly affected by the amount of PCL shells on the fragmented nanofibers.
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Affiliation(s)
- Jae Keun Park
- Department
of Biomedical Materials Engineering, Kangwon
National University, Chuncheon 24341, Republic of Korea
| | - Oanh-Vu Pham-Nguyen
- Department
of Biomedical Materials Engineering, Kangwon
National University, Chuncheon 24341, Republic of Korea
| | - Hyuk Sang Yoo
- Department
of Biomedical Materials Engineering, Kangwon
National University, Chuncheon 24341, Republic of Korea
- Institute
of Bioscience and Biotechnology, Kangwon
National University, Chuncheon 24341, Republic of Korea
- . Website: http://nano-bio.kangwon.ac.kr
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73
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Fabrication of cellulose-based adhesive composite as an active packaging material to extend the shelf life of cheese. Int J Biol Macromol 2020; 160:264-275. [DOI: 10.1016/j.ijbiomac.2020.05.217] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 05/18/2020] [Accepted: 05/25/2020] [Indexed: 12/14/2022]
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74
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A Study on Tensile Strain Distribution and Fracture Coordinate of Nanofiber Mat by Digital Image Correlation System. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10175992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Strain gauges are commonly used for tension tests to obtain the strain of a metal test specimen. They make contact, however, so the gauges are not applicable to every type of test specimen. That is the reason why a non-contact type measurement system is required. Nanofibrous mats, manufactured by electrospinning, have different structures and thicknesses. Displacement and strain distributions for all ranges of the specimen have never been demonstrated for nanofiber mats so far. Wrinkled nanofibrous mats of polyurethane were made and then tension-tested. The Digital Image Correlation (DIC) method was employed to measure displacement, then to calculate strain for all areas of the specimen. The DIC system consisted of a CMOS camera, control PC and operating software with a DIC algorithm: then, the Center of Gravity (COG) algorithm was used for this system. A cross-head speed of 3 mm/min was set for the tension test. The image record speed was one frame a second. In total, 400 image frames were obtained from the start, and then displacement and strain distributions were acquired for a 400 second tension test. The strain distribution from DIC system showed good agreement with the test result by a universal testing machine.
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Abstract
Regenerative engineering is powerfully emerging as a successful strategy for the regeneration of complex tissues and biological organs using a convergent approach that integrates several fields of expertise. This innovative and disruptive approach has spurred the demands for more choice of biomaterials with distinctive biological recognition properties. An ideal biomaterial is one that closely mimics the hierarchical architecture and features of the extracellular matrices (ECM) of native tissues. Nanofabrication technology presents an excellent springboard for the development of nanofiber scaffolds that can have positive interactions in the immediate cellular environment and stimulate specific regenerative cascades at the molecular level to yield healthy tissues. This paper systematically reviews the electrospinning process technology and its utility in matrix-based regenerative engineering, focusing mainly on musculoskeletal tissues. It briefly outlines the electrospinning/three-dimensional printing system duality and concludes with a discussion on the technology outlook and future directions of nanofiber matrices.
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Affiliation(s)
- Kenneth S. Ogueri
- Department of Materials Science and Engineering,
University of Connecticut, Storrs, CT 06269, USA
- Connecticut Convergence Institute, University of
Connecticut Health Center, Farmington, CT 06030, USA
| | - Cato T. Laurencin
- Department of Materials Science and Engineering,
University of Connecticut, Storrs, CT 06269, USA
- Connecticut Convergence Institute, University of
Connecticut Health Center, Farmington, CT 06030, USA
- Department of Orthopaedic Surgery, University of
Connecticut Health Center, Farmington, CT 06030, USA
- Department of Biomedical Engineering, University of
Connecticut, Storrs, CT 06269, USA
- Department of Chemical and Biomolecular Engineering,
University of Connecticut, Storrs, CT 06269, USA
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76
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Xu X, Ren S, Li L, Zhou Y, Peng W, Xu Y. Biodegradable engineered fiber scaffolds fabricated by electrospinning for periodontal tissue regeneration. J Biomater Appl 2020; 36:55-75. [PMID: 32842852 DOI: 10.1177/0885328220952250] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Considering the specificity of periodontium and the unique advantages of electrospinning, this technology has been used to fabricate biodegradable tissue engineering materials for functional periodontal regeneration. For better biomedical quality, a continuous technological progress of electrospinning has been performed. Based on property of materials (natural, synthetic or composites) and additive novel methods (drug loading, surface modification, structure adjustment or 3 D technique), various novel membranes and scaffolds that could not only relief inflammation but also influence the biological behaviors of cells have been fabricated to achieve more effective periodontal regeneration. This review provides an overview of the usage of electrospinning materials in treatments of periodontitis, in order to get to know the existing research situation and find treatment breakthroughs of the periodontal diseases.
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Affiliation(s)
- Xuanwen Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China *These authors contributed equally to this article
| | - Shuangshuang Ren
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China *These authors contributed equally to this article
| | - Lu Li
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China *These authors contributed equally to this article
| | - Yi Zhou
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China *These authors contributed equally to this article
| | - Wenzao Peng
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China *These authors contributed equally to this article
| | - Yan Xu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China.,Department of Periodontology, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China *These authors contributed equally to this article
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77
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Moradi E, Mehrani Z, Ebrahimzadeh H. Gelatin/sodium triphosphate hydrogel electrospun nanofiber mat as a novel nanosorbent for microextraction in packed syringe of La3+ and Tb3+ ions prior to their determination by ICP-OES. REACT FUNCT POLYM 2020. [DOI: 10.1016/j.reactfunctpolym.2020.104627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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78
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Fabrication of nanofiltration membrane based on non-biofouling PVP/lecithin nanofibers reinforced with microcrystalline cellulose via needle and needle-less electrospinning techniques. Int J Biol Macromol 2020; 157:530-543. [DOI: 10.1016/j.ijbiomac.2020.04.152] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/18/2020] [Accepted: 04/19/2020] [Indexed: 01/05/2023]
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79
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Park H, Baek S, Kang H, Lee D. Biomaterials to Prevent Post-Operative Adhesion. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3056. [PMID: 32650529 PMCID: PMC7412384 DOI: 10.3390/ma13143056] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/28/2020] [Accepted: 07/03/2020] [Indexed: 02/07/2023]
Abstract
Surgery is performed to treat various diseases. During the process, the surgical site is healed through self-healing after surgery. Post-operative or tissue adhesion caused by unnecessary contact with the surgical site occurs during the normal healing process. In addition, it has been frequently found in patients who have undergone surgery, and severe adhesion can cause chronic pain and various complications. Therefore, anti-adhesion barriers have been developed using multiple biomaterials to prevent post-operative adhesion. Typically, anti-adhesion barriers are manufactured and sold in numerous forms, such as gels, solutions, and films, but there are no products that can completely prevent post-operative adhesion. These products are generally applied over the surgical site to physically block adhesion to other sites (organs). Many studies have recently been conducted to increase the anti-adhesion effects through various strategies. This article reviews recent research trends in anti-adhesion barriers.
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Affiliation(s)
- Heekyung Park
- Department of Biomedical Engineering, School of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 06974, Korea; (H.P.); (S.B.)
| | - Seungho Baek
- Department of Biomedical Engineering, School of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 06974, Korea; (H.P.); (S.B.)
| | - Hyun Kang
- Department of Anesthesiology and Pain Medicine, Chung-Ang University College of Medicine and Graduate School of Medicine, Seoul 06973, Korea
| | - Donghyun Lee
- Department of Biomedical Engineering, School of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 06974, Korea; (H.P.); (S.B.)
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80
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Farahmand M, Alavi N, Khalesi M. Fabrication and Characterization of Gelatin Electrospun Fiber Containing Cardamom Essential Oil. ACTA ACUST UNITED AC 2020. [DOI: 10.2174/2210681209666190218145058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Background:
Gelatin electrospun fibers incorporated with extracted cardamom Essential
Oil (EO) were developed and characterized.
Materials & Methods:
The gelatin solutions were evaluated in terms of conductivity, morphology,
fourier transform infrared spectroscopy, and the effect of cardamom EO on the gelatin fibers. Cardamom
EO showed significant antioxidant activity with IC50 value of 5 μg/mL. The extract contained
several active components including Cyclohexene, 1-methyl-4-(1-methylethylidene) and
Eucalyptol (1.8-cineol) as the most abundant components.
Results:
The images of the scanning electron microscopy revealed formation of nanofibers from
gelatin solution with significant entanglement. Furthermore, discrete beads were appeared by
increasing the concentrations of cardamom EO in the gelatin fibers. Reduction in conductivity
parameter of EO solutions could explain the observed defects. The fourier transform infrared spectra
showed the formation of hydrogen bonds in gelatin fibers. The infrared as well as spectrophotometric
spectra confirmed that EO was effectively involved in electrospun fibers.
Conclusion:
In conclusion, gelatin –a natural biopolymer, incorporated with cardamom EO forms
smooth fabricated electrospun nanofibers.
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Affiliation(s)
- Maryam Farahmand
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Nasireh Alavi
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran
| | - Mohammadreza Khalesi
- Department of Food Science and Technology, School of Agriculture, Shiraz University, Shiraz, Iran
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Filippi M, Born G, Chaaban M, Scherberich A. Natural Polymeric Scaffolds in Bone Regeneration. Front Bioeng Biotechnol 2020; 8:474. [PMID: 32509754 PMCID: PMC7253672 DOI: 10.3389/fbioe.2020.00474] [Citation(s) in RCA: 148] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Despite considerable advances in microsurgical techniques over the past decades, bone tissue remains a challenging arena to obtain a satisfying functional and structural restoration after damage. Through the production of substituting materials mimicking the physical and biological properties of the healthy tissue, tissue engineering strategies address an urgent clinical need for therapeutic alternatives to bone autografts. By virtue of their structural versatility, polymers have a predominant role in generating the biodegradable matrices that hold the cells in situ to sustain the growth of new tissue until integration into the transplantation area (i.e., scaffolds). As compared to synthetic ones, polymers of natural origin generally present superior biocompatibility and bioactivity. Their assembly and further engineering give rise to a wide plethora of advanced supporting materials, accounting for systems based on hydrogels or scaffolds with either fibrous or porous architecture. The present review offers an overview of the various types of natural polymers currently adopted in bone tissue engineering, describing their manufacturing techniques and procedures of functionalization with active biomolecules, and listing the advantages and disadvantages in their respective use in order to critically compare their actual applicability potential. Their combination to other classes of materials (such as micro and nanomaterials) and other innovative strategies to reproduce physiological bone microenvironments in a more faithful way are also illustrated. The regeneration outcomes achieved in vitro and in vivo when the scaffolds are enriched with different cell types, as well as the preliminary clinical applications are presented, before the prospects in this research field are finally discussed. The collection of studies herein considered confirms that advances in natural polymer research will be determinant in designing translatable materials for efficient tissue regeneration with forthcoming impact expected in the treatment of bone defects.
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Affiliation(s)
- Miriam Filippi
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Gordian Born
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | - Mansoor Chaaban
- Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Arnaud Scherberich
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Biomedicine, University Hospital Basel, University of Basel, Basel, Switzerland
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Comparative Study of Electrospun Scaffolds Containing Native GAGs and a GAG Mimetic for Human Mesenchymal Stem Cell Chondrogenesis. Ann Biomed Eng 2020; 48:2040-2052. [DOI: 10.1007/s10439-020-02499-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/24/2020] [Indexed: 12/20/2022]
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Gaikwad A, Hlushko H, Karimineghlani P, Selin V, Sukhishvili SA. Hydrogen-Bonded, Mechanically Strong Nanofibers with Tunable Antioxidant Activity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:11026-11035. [PMID: 32048504 DOI: 10.1021/acsami.9b23212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report on mechanically strong, water-insoluble hydrogen-bonded nanofiber mats composed of a hydrophilic polymer and a natural polyphenol that exhibit prolonged antioxidant activity. The high performance of fibrous mats resulted from the formation of a network of hydrogen bonds between a low-molecular-weight polyphenol (tannic acid, TA) and a water-soluble polymer (polyvinylpyrrolidone, PVP) and could be precisely controlled by the TA-to-PVP ratio. Dramatic enhancement (5- to 10-fold) in tensile strength, toughness, and Young's moduli of the PVP/TA fiber mats (as compared to those of pristine PVP fibers) was achieved at the maximum density of hydrogen bonds, which occurred at ∼0.2-0.4 molar fractions of TA. The formation of hydrogen bonds was confirmed by an increase in the glass-transition temperature of the polymer after binding with TA. When exposed to water, the fibers exhibited composition- and pH-dependent stabilities, with the TA-enriched fibers fully preserving their integrity in acidic and neutral media. Importantly, the fiber mats exhibited strong antioxidant activity with dual (burst and prolonged) activity profiles, which could be controlled via fiber composition, a feature useful for controlling radical-scavenging rates in environmental and biological applications.
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Affiliation(s)
- Adwait Gaikwad
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Hanna Hlushko
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Parvin Karimineghlani
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Victor Selin
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
| | - Svetlana A Sukhishvili
- Department of Materials Science & Engineering, Texas A&M University, College Station, Texas 77843, United States
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84
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Wang P, Li Y, Zhang C, Feng F, Zhang H. Sequential electrospinning of multilayer ethylcellulose/gelatin/ethylcellulose nanofibrous film for sustained release of curcumin. Food Chem 2020; 308:125599. [DOI: 10.1016/j.foodchem.2019.125599] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
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85
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Hajiabbas M, Alemzadeh I, Vossoughi M, Shamloo A. In-situ crosslinking of electrospun gelatin-carbodiimide nanofibers: fabrication, characterization, and modeling of solution parameters. CHEM ENG COMMUN 2020. [DOI: 10.1080/00986445.2020.1725491] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Maryam Hajiabbas
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Iran Alemzadeh
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Manouchehr Vossoughi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Amir Shamloo
- Department of Mechanical Engineering, Sharif University of Technology, Tehran, Iran
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Eren Boncu T, Ozdemir N, Uskudar Guclu A. Electrospinning of linezolid loaded PLGA nanofibers: effect of solvents on its spinnability, drug delivery, mechanical properties, and antibacterial activities. Drug Dev Ind Pharm 2020; 46:109-121. [PMID: 31905297 DOI: 10.1080/03639045.2019.1706550] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Objective: The choice of a desirable solvent/solvent system is fundamental for optimization of electrospinning by altering the rheological and electrostatic properties of the polymer solutions.Methods: The effects of the solvents and their properties on the viscosity and spinnability of the polymer solutions and the diameter, morphology, in vitro drug release, drug release mechanisms, antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA) and mechanical properties of electrospun poly-(d,l-lactide-co-glycolide) (PLGA) nanofibers were investigated. Dichloromethane (DCM), dimethylformamide (DMF), various ratios of DCM:DMF, and 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) were used as solvents.Results: Although solutions containing DCM/DMF alone were not spinnable, different ratios of DCM:DMF and HFIP were determined as suitable solvents to produce nanofibers because of high enough conductivity, viscosity, and low enough surface tension of the solutions. The DCM:DMF ratio was highly effective on viscosity, nanofiber diameter, morphology, and linezolid release rate. The viscosity of HFIP containing solution was higher and the obtained nanofibers were thicker and smoother with better mechanical properties. The release of nanofibers containing HFIP at a concentration of 10% w/v PLGA was more prolonged than nanofibers containing DCM:DMF mixture. The effect of linezolid content on nanofibers was also investigated. As the amount of linezolid increased, nanofiber diameter and drug release increased and bead formation was observed. While antibacterial activity with nanofibers for which DCM:DMF was used, lasted for 13 days, it was extended to 16 days in nanofibers for which HFIP was used.Conclusions: Type and ratio of the solvent system affected viscosity and spinnability of the solutions, the average nanofiber diameter, morphology, in vitro activity and mechanical properties of the obtained electrospun nanofibers.
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Affiliation(s)
- Tugba Eren Boncu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Erciyes University, Kayseri, Turkey
| | - Nurten Ozdemir
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - Aylin Uskudar Guclu
- Department of Medical Microbiology, Faculty of Medicine, Baskent University, Ankara, Turkey
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88
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Oveissi F, Naficy S, Lee A, Winlaw D, Dehghani F. Materials and manufacturing perspectives in engineering heart valves: a review. Mater Today Bio 2020; 5:100038. [PMID: 32211604 PMCID: PMC7083765 DOI: 10.1016/j.mtbio.2019.100038] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Revised: 11/26/2019] [Accepted: 11/27/2019] [Indexed: 12/27/2022] Open
Abstract
Valvular heart diseases (VHD) are a major health burden, affecting millions of people worldwide. The treatments for such diseases rely on medicine, valve repair, and artificial heart valves including mechanical and bioprosthetic valves. Yet, there are countless reports on possible alternatives noting long-term stability and biocompatibility issues and highlighting the need for fabrication of more durable and effective replacements. This review discusses the current and potential materials that can be used for developing such valves along with existing and developing fabrication methods. With this perspective, we quantitatively compare mechanical properties of various materials that are currently used or proposed for heart valves along with their fabrication processes to identify challenges we face in creating new materials and manufacturing techniques to better mimick the performance of native heart valves.
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Key Words
- 3D printing
- Biofabrication
- Biomaterials
- E, Young's modulus
- Electrospinning
- Gal, galactose-α1,3-galactose
- GelMa, gelatin methacrylate
- HA, hyaluronic acid
- HAVIC, human aortic valvular interstitial cells
- MA-HA, methacrylated hyaluronic acid
- NeuGc, N-glycolylneuraminic acid
- P4HB, poly(4-hydroxybutyrate)
- PAAm, polyacrylamide
- PCE, polycitrate-(ε-polypeptide)
- PCL, polycaprolactone
- PE, polyethylene
- PEG, polyethylene glycol
- PEGDA, polyethylene glycol diacrylate
- PGA, poly(glycolic acid)
- PHA, poly(hydroxyalkanoate)
- PLA, polylactide
- PMMA, poly(methyl methacrylate)
- PPG, polypropylene glycol
- PTFE, polytetrafluoroethylene
- PU, polyurethane
- SIBS, poly(styrene-b-isobutylene-b-styrene)
- SMC, smooth muscle cells
- VHD, valvular heart disease
- VIC, aortic valve leaflet interstitial cells
- Valvular heart diseases
- dECM, decellularized extracellular matrix
- ePTFE, expanded PTFE
- xSIBS, crosslinked version of SIBS
- α-SMA, alpha-smooth muscle actin
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Affiliation(s)
- F. Oveissi
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - S. Naficy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - A. Lee
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
- Discipline of Child and Adolescent Health, Sydney Medical School, Faculty of Health and Medicine, The University of Sydney, New South Wales, 2006, Australia
- Heart Centre for Children, The Children's Hospital at Westmead, New South Wales, 2145, Australia
| | - D.S. Winlaw
- Discipline of Child and Adolescent Health, Sydney Medical School, Faculty of Health and Medicine, The University of Sydney, New South Wales, 2006, Australia
- Heart Centre for Children, The Children's Hospital at Westmead, New South Wales, 2145, Australia
| | - F. Dehghani
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, New South Wales, 2006, Australia
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Vigani B, Rossi S, Sandri G, Bonferoni MC, Rui M, Collina S, Fagiani F, Lanni C, Ferrari F. Dual-Functioning Scaffolds for the Treatment of Spinal Cord Injury: Alginate Nanofibers Loaded with the Sigma 1 Receptor (S1R) Agonist RC-33 in Chitosan Films. Mar Drugs 2019; 18:E21. [PMID: 31887983 PMCID: PMC7024184 DOI: 10.3390/md18010021] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 12/19/2019] [Accepted: 12/23/2019] [Indexed: 12/14/2022] Open
Abstract
The present work proposed a novel therapeutic platform with both neuroprotective and neuroregenerative potential to be used in the treatment of spinal cord injury (SCI). A dual-functioning scaffold for the delivery of the neuroprotective S1R agonist, RC-33, to be locally implanted at the site of SCI, was developed. RC-33-loaded fibers, containing alginate (ALG) and a mixture of two different grades of poly(ethylene oxide) (PEO), were prepared by electrospinning. After ionotropic cross-linking, fibers were incorporated in chitosan (CS) films to obtain a drug delivery system more flexible, easier to handle, and characterized by a controlled degradation rate. Dialysis equilibrium studies demonstrated that ALG was able to form an interaction product with the cationic RC-33 and to control RC-33 release in the physiological medium. Fibers loaded with RC-33 at the concentration corresponding to 10% of ALG maximum binding capacity were incorporated in films based on CS at two different molecular weights-low (CSL) and medium (CSM)-solubilized in acetic (AA) or glutamic (GA) acid. CSL- based scaffolds were subjected to a degradation test in order to investigate if the different CSL salification could affect the film behavior when in contact with media that mimic SCI environment. CSL AA exhibited a slower biodegradation and a good compatibility towards human neuroblastoma cell line.
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Affiliation(s)
- Barbara Vigani
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Silvia Rossi
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Giuseppina Sandri
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Maria Cristina Bonferoni
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Marta Rui
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Simona Collina
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Francesca Fagiani
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
- Scuola Universitaria IUSS, Istituto Universitario di Studi Superiori, 27100 Pavia, Italy
| | - Cristina Lanni
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
| | - Franca Ferrari
- Department of Drug Sciences, University of Pavia, Viale Taramelli, 12, 27100 Pavia, Italy; (B.V.); (G.S.); (M.C.B.); (M.R.); (S.C.); (F.F.); (C.L.)
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Bentele T, Amadei F, Kimmle E, Veschgini M, Linke P, Sontag-González M, Tennigkeit J, Ho AD, Özbek S, Tanaka M. New Class of Crosslinker-Free Nanofiber Biomaterials from Hydra Nematocyst Proteins. Sci Rep 2019; 9:19116. [PMID: 31836799 PMCID: PMC6910907 DOI: 10.1038/s41598-019-55655-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 10/30/2019] [Indexed: 11/10/2022] Open
Abstract
Nematocysts, the stinging organelles of cnidarians, have remarkable mechanical properties. Hydra nematocyst capsules undergo volume changes of 50% during their explosive exocytosis and withstand osmotic pressures of beyond 100 bar. Recently, two novel protein components building up the nematocyst capsule wall in Hydra were identified. The cnidarian proline-rich protein 1 (CPP-1) characterized by a "rigid" polyproline motif and the elastic Cnidoin possessing a silk-like domain were shown to be part of the capsule structure via short cysteine-rich domains that spontaneously crosslink the proteins via disulfide bonds. In this study, recombinant Cnidoin and CPP-1 are expressed in E. coli and the elastic modulus of spontaneously crosslinked bulk proteins is compared with that of isolated nematocysts. For the fabrication of uniform protein nanofibers by electrospinning, the preparative conditions are systematically optimized. Both fibers remain stable even after rigorous washing and immersion into bulk water owing to the simultaneous crosslinking of cysteine-rich domains. This makes our nanofibers clearly different from other protein nanofibers that are not stable without chemical crosslinkers. Following the quantitative assessment of mechanical properties, the potential of Cnidoin and CPP-1 nanofibers is examined towards the maintenance of human mesenchymal stem cells.
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Affiliation(s)
- Theresa Bentele
- Centre for Organismal Studies, Department of Molecular Evolution and Genomics, Heidelberg University, 69120, Heidelberg, Germany
| | - Federico Amadei
- Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, 69120, Heidelberg, Germany
| | - Esther Kimmle
- Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, 69120, Heidelberg, Germany
| | - Mariam Veschgini
- Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, 69120, Heidelberg, Germany
| | - Philipp Linke
- Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, 69120, Heidelberg, Germany
| | - Mariana Sontag-González
- Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, 69120, Heidelberg, Germany
- School of Earth and Environmental Sciences, Science Medicine and Health, University of Wollongong, NSW 2522, Wollongong, Australia
| | - Jutta Tennigkeit
- Centre for Organismal Studies, Department of Molecular Evolution and Genomics, Heidelberg University, 69120, Heidelberg, Germany
| | - Anthony D Ho
- Department of Medicine V, University of Heidelberg, 69120, Heidelberg, Germany
- Center for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, 606-8501, Kyoto, Japan
| | - Suat Özbek
- Centre for Organismal Studies, Department of Molecular Evolution and Genomics, Heidelberg University, 69120, Heidelberg, Germany.
| | - Motomu Tanaka
- Physical Chemistry of Biosystems, Institute of Physical Chemistry, Heidelberg University, 69120, Heidelberg, Germany.
- Center for Integrative Medicine and Physics, Institute for Advanced Study, Kyoto University, 606-8501, Kyoto, Japan.
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Electrospinning on 3D Printed Polymers for Mechanically Stabilized Filter Composites. Polymers (Basel) 2019; 11:polym11122034. [PMID: 31818001 PMCID: PMC6960595 DOI: 10.3390/polym11122034] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/26/2019] [Accepted: 12/05/2019] [Indexed: 11/17/2022] Open
Abstract
Electrospinning is a frequently used method to prepare air and water filters. Electrospun nanofiber mats can have very small pores, allowing for filtering of even the smallest particles or molecules. In addition, their high surface-to-volume ratio allows for the integration of materials which may additionally treat the filtered material through photo-degradation, possess antimicrobial properties, etc., thus enhancing their applicability. However, the fine nanofiber mats are prone to mechanical damage. Possible solutions include reinforcement by embedding them in composites or gluing them onto layers that are more mechanically stable. In a previous study, we showed that it is generally possible to stabilize electrospun nanofiber mats by 3D printing rigid polymer layers onto them. Since this procedure is not technically easy and needs some experience to avoid delamination as well as damaging the nanofiber mat by the hot nozzle, here we report on the reversed technique (i.e., first 3D printing a rigid scaffold and subsequently electrospinning the nanofiber mat on top of it). We show that, although the adhesion between both materials is insufficient in the case of a common rigid printing polymer, nanofiber mats show strong adhesion to 3D printed scaffolds from thermoplastic polyurethane (TPU). This paves the way to a second approach of combining 3D printing and electrospinning in order to prepare mechanically stable filters with a nanofibrous surface.
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92
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Guo Y, Zhou W, Wang L, Dong Y, Yu J, Li X, Ding B. Stretchable PDMS Embedded Fibrous Membranes Based on an Ethanol Solvent System for Waterproof and Breathable Applications. ACS APPLIED BIO MATERIALS 2019; 2:5949-5956. [DOI: 10.1021/acsabm.9b00875] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yuxia Guo
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
| | - Wen Zhou
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Lihuan Wang
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Yuping Dong
- College of Textiles, Donghua University, Shanghai 201620, China
| | - Jianyong Yu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Xiaoran Li
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Bin Ding
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- College of Textiles, Donghua University, Shanghai 201620, China
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
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Levingstone TJ, Herbaj S, Dunne NJ. Calcium Phosphate Nanoparticles for Therapeutic Applications in Bone Regeneration. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1570. [PMID: 31698700 PMCID: PMC6915504 DOI: 10.3390/nano9111570] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/19/2019] [Accepted: 11/01/2019] [Indexed: 01/01/2023]
Abstract
Bone injuries and diseases constitute a burden both socially and economically, as the consequences of a lack of effective treatments affect both the patients' quality of life and the costs on the health systems. This impended need has led the research community's efforts to establish efficacious bone tissue engineering solutions. There has been a recent focus on the use of biomaterial-based nanoparticles for the delivery of therapeutic factors. Among the biomaterials being considered to date, calcium phosphates have emerged as one of the most promising materials for bone repair applications due to their osteoconductivity, osteoinductivity and their ability to be resorbed in the body. Calcium phosphate nanoparticles have received particular attention as non-viral vectors for gene therapy, as factors such as plasmid DNAs, microRNAs (miRNA) and silencing RNA (siRNAs) can be easily incorporated on their surface. Calcium phosphate nanoparticles loaded with therapeutic factors have also been delivered to the site of bone injury using scaffolds and hydrogels. This review provides an extensive overview of the current state-of-the-art relating to the design and synthesis of calcium phosphate nanoparticles as carriers for therapeutic factors, the mechanisms of therapeutic factors' loading and release, and their application in bone tissue engineering.
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Affiliation(s)
- Tanya J. Levingstone
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; (T.J.L.); (S.H.)
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
- Tissue Engineering Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 9, Ireland
| | - Simona Herbaj
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; (T.J.L.); (S.H.)
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
| | - Nicholas J. Dunne
- School of Mechanical and Manufacturing Engineering, Dublin City University, Dublin 9, Ireland; (T.J.L.); (S.H.)
- Centre for Medical Engineering Research, School of Mechanical and Manufacturing Engineering, Dublin City University, Stokes Building, Collins Avenue, Dublin 9, Ireland
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 9, Ireland
- School of Pharmacy, Queen’s University Belfast, Belfast BT7 1NN, UK
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin 2, Ireland
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94
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Naduthottathil MR, Avolio E, Carrabba M, Davis S, Caputo M, Madeddu P, Su B. The Effect of Matrix Stiffness of Biomimetic Gelatin Nanofibrous Scaffolds on Human Cardiac Pericyte Behavior. ACS APPLIED BIO MATERIALS 2019; 2:4385-4396. [PMID: 35021398 DOI: 10.1021/acsabm.9b00608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Congenital heart disease (CHD) is the most common and deadly congenital anomaly, accounting for up to 7.5% of all infant deaths. Survival in children born with CHD has improved dramatically over the past several decades (this positive trend being counterbalanced by the fact that more patients develop heart failure). Seminal data indicate an alteration of the extracellular matrix occurs with time in these hearts due to diffuse and abundant interstitial fibrosis. This results in an escalation in the stiffness of the local myocardial microenvironment. However, the influence of matrix stiffness in regulating the function of resident human stromal cells has not been reported. The objective of this study was to determine the impact of scaffold stiffness on the antigenic and functional profile of cardiac pericytes (CPs) isolated from patients with CHD. To this end, we have first manufactured gelatin nanofibrous scaffolds with varying degrees of stiffness using an in situ cross-linking electrospinning technique in a pure water solvent system. We assessed Young's modulus and performed a comprehensive physicochemical characterization of the scaffolds employing scanning electron microscopy and Fourier transform infrared spectroscopy. We next evaluated the changes induced by a different scaffold stiffness on CP morphology, antigenic profile, viability, proliferation, angiocrine activity, and induced differentiation. Results indicate that soft matrixes with a fiber diameter of ∼400 nm increase CP proliferation, secretion of angiopoietin 2, and F-actin stress fiber formation, without affecting the antigenic profile, viability, or differentiation. These data indicate for the first time that human CPs can be functionally influenced by slight changes in matrix stiffness. The study elucidates the importance of mechanical/morphological cues in modulating the behavior of stromal cells isolated from patients with CHD.
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Affiliation(s)
- Mincy Raj Naduthottathil
- Bristol Centre for Functional Nanomaterials (BCFN), University of Bristol, Bristol BS8 1TL, United Kingdom
| | - Elisa Avolio
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Michele Carrabba
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Sean Davis
- School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Massimo Caputo
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Paolo Madeddu
- Bristol Medical School, University of Bristol, Upper Maudlin Street, Bristol BS2 8HW, United Kingdom
| | - Bo Su
- Bristol Dental School, Lower Maudlin Street, Bristol BS1 2LY, United Kingdom
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95
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Catoira MC, Fusaro L, Di Francesco D, Ramella M, Boccafoschi F. Overview of natural hydrogels for regenerative medicine applications. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:115. [PMID: 31599365 PMCID: PMC6787111 DOI: 10.1007/s10856-019-6318-7] [Citation(s) in RCA: 365] [Impact Index Per Article: 73.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/27/2019] [Indexed: 05/18/2023]
Abstract
Hydrogels from different materials can be used in biomedical field as an innovative approach in regenerative medicine. Depending on the origin source, hydrogels can be synthetized through chemical and physical methods. Hydrogel can be characterized through several physical parameters, such as size, elastic modulus, swelling and degradation rate. Lately, research is focused on hydrogels derived from biologic materials. These hydrogels can be derived from protein polymers, such as collage, elastin, and polysaccharide polymers like glycosaminoglycans or alginate among others. Introduction of decellularized tissues into hydrogels synthesis displays several advantages compared to natural or synthetic based hydrogels. Preservation of natural molecules such as growth factors, glycans, bioactive cryptic peptides and natural proteins can promote cell growth, function, differentiation, angiogenesis, anti-angiogenesis, antimicrobial effects, and chemotactic effects. Versatility of hydrogels make possible multiple applications and combinations with several molecules on order to obtain the adequate characteristic for each scope. In this context, a lot of molecules such as cross link agents, drugs, grow factors or cells can be used. This review focuses on the recent progress of hydrogels synthesis and applications in order to classify the most recent and relevant matters in biomedical field.
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Affiliation(s)
- Marta Calvo Catoira
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
- Tissuegraft srl, 28100, Novara, Italy
- Center for Translational Research on Autoimmune & Allergic Diseases - CAAD, Novara, 28100, Italy
| | - Luca Fusaro
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
- Tissuegraft srl, 28100, Novara, Italy
| | - Dalila Di Francesco
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy
| | | | - Francesca Boccafoschi
- Department of Health Sciences, University of Piemonte Orientale, 28100, Novara, Italy.
- Tissuegraft srl, 28100, Novara, Italy.
- Center for Translational Research on Autoimmune & Allergic Diseases - CAAD, Novara, 28100, Italy.
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96
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Stabilization of Electrospun Nanofiber Mats Used for Filters by 3D Printing. Polymers (Basel) 2019; 11:polym11101618. [PMID: 31590455 PMCID: PMC6835246 DOI: 10.3390/polym11101618] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2019] [Revised: 10/03/2019] [Accepted: 10/04/2019] [Indexed: 11/29/2022] Open
Abstract
Electrospinning is a well-known technology used to create nanofiber mats from diverse polymers and other materials. Due to their large surface-to-volume ratio, such nanofiber mats are often applied as air or water filters. Especially the latter, however, have to be mechanically highly stable, which is challenging for common nanofiber mats. One of the approaches to overcome this problem is gluing them on top of more rigid objects, integrating them in composites, or reinforcing them using other technologies to avoid damage due to the water pressure. Here, we suggest another solution. While direct 3D printing with the fused deposition modeling (FDM) technique on macroscopic textile fabrics has been under examination by several research groups for years, here we report on direct FDM printing on nanofiber mats for the first time. We show that by choosing the proper height of the printing nozzle above the nanofiber mat, printing is possible for raw polyacrylonitrile (PAN) nanofiber mats, as well as for stabilized and even more brittle carbonized material. Under these conditions, the adhesion between both parts of the composite is high enough to prevent the nanofiber mat from being peeled off the 3D printed polymer. Abrasion tests emphasize the significantly increased mechanical properties, while contact angle examinations reveal a hydrophilicity between the original values of the electrospun and the 3D printed materials.
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97
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Ricaurte L, Tello-Camacho E, Quintanilla-Carvajal MX. Hydrolysed Gelatin-Derived, Solvent-Free, Electrospun Nanofibres for Edible Applications: Physical, Chemical and Thermal Behaviour. FOOD BIOPHYS 2019. [DOI: 10.1007/s11483-019-09608-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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98
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Ahlawat J, Kumar V, Gopinath P. Carica papaya loaded poly (vinyl alcohol)-gelatin nanofibrous scaffold for potential application in wound dressing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109834. [DOI: 10.1016/j.msec.2019.109834] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/31/2019] [Accepted: 05/29/2019] [Indexed: 01/18/2023]
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99
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Zulfi A, Hapidin DA, Munir MM, Iskandar F, Khairurrijal K. The synthesis of nanofiber membranes from acrylonitrile butadiene styrene (ABS) waste using electrospinning for use as air filtration media. RSC Adv 2019; 9:30741-30751. [PMID: 35529399 PMCID: PMC9072414 DOI: 10.1039/c9ra04877d] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/16/2019] [Indexed: 11/21/2022] Open
Abstract
Acrylonitrile butadiene styrene (ABS) waste has been successfully recycled into nanofiber membranes by an electrospinning method for air filter applications. The ABS precursor solutions were made by dissolving the ABS waste in three different solvents, DMAc, DMF, and THF, with various concentrations of 10, 20, and 30 wt%. The solvent and solution concentrations affected the fiber properties (size and morphology) and membrane properties (wettability, crystallinity, and mechanical). Accordingly, we tested the fabricated membranes using SEM, FTIR, XRD, water contact angle, and tensile strength test measurements. The SEM images depicted three different morphologies, i.e. beads, beaded fibers, and pure fibers. The FTIR spectra showed that the solvents completely evaporated during the electrospinning process. The water contact angle test exhibited the hydrophobic properties of all the membrane samples. The XRD spectra showed the amorphous structures of all the membranes. The tensile strength test showed that the membranes fabricated using DMF and DMAc solvents had the best mechanical properties. Considering the fiber size, wettability, and mechanical properties, the membranes fabricated using DMAc and DMF solvents had the best criteria as air filter media. Filtration tests on the membranes fabricated using DMAc and DMF solvents with various solution concentrations depicted that the beads affected the membrane pressure drop and efficiency. The beads gave more space among the fibers, which facilitated the air flow through the membrane. The beads greatly reduced the pressure drop without an overly reduced membrane filtration efficiency. This led to a high-quality factor of the membranes that demonstrated their applicability as potential air filter media.
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Affiliation(s)
- Akmal Zulfi
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
| | - Dian Ahmad Hapidin
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
| | - Muhammad Miftahul Munir
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
- Research Center for Biosciences and Biotechnology, Institute for Research and Community Services, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
| | - Ferry Iskandar
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
- Research Center for Nanosciences and Nanotechnology, Institute for Research and Community Services, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
| | - Khairurrijal Khairurrijal
- Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
- Research Center for Biosciences and Biotechnology, Institute for Research and Community Services, Institut Teknologi Bandung Jalan Ganesa 10 Bandung 40132 Indonesia
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100
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A review on fabrication of nanofibers via electrospinning and their applications. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1288-4] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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