1
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Heydari P, Zargar Kharazi A, Shariati L. Enhanced wound regeneration by PGS/PLA fiber dressing containing platelet-rich plasma: an in vitro study. Sci Rep 2024; 14:12019. [PMID: 38797743 PMCID: PMC11128439 DOI: 10.1038/s41598-024-62855-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 05/22/2024] [Indexed: 05/29/2024] Open
Abstract
Novel wound dressings with therapeutic effects are being continually designed to improve the wound healing process. In this study, the structural, chemical, physical, and biological properties of an electrospun poly glycerol sebacate/poly lactide acid/platelet-rich plasma (PGS/PLA-PRP) nanofibers were evaluated to determine its impacts on in vitro wound healing. Results revealed desirable cell viability in the Fibroblast (L929) and macrophage (RAW-264.7) cell lines as well as human umbilical vein endothelial cells (HUVEC). Cell migration was evident in the scratch assay (L929 cell line) so that it promoted scratch contraction to accelerate in vitro wound healing. Moreover, addition of PRP to the fiber structure led to enhanced collagen deposition (~ 2 times) in comparison with PGS/PLA scaffolds. While by addition PRP to PGS/PLA fibers not only decreased the expression levels of pro-inflammatory cytokines (IL-6 and TNF-α) in RAW-264.7 cells but also led to significantly increased levels of cytokine (IL-10) and the growth factor (TGF-β), which are related to the anti-inflammatory phase (M2 phenotype). Finally, PGS/PLA-PRP was found to induce a significant level of angiogenesis by forming branching points, loops, and tubes. Based on the results obtained, the PGS/PLA-PRP dressing developed might be a promising evolution in skin tissue engineering ensuring improved wound healing and tissue regeneration.
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Affiliation(s)
- Parisa Heydari
- Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
- Applied Physiology Research Center, Isfahan, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Applied Physiology Research Center, Isfahan, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran.
- Biomaterials Nanotechnology and Tissue Engineering Faculty, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran.
| | - Laleh Shariati
- Applied Physiology Research Center, Isfahan, Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
- Biosensor Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Rosalia M, Rubes D, Serra M, Genta I, Dorati R, Conti B. Polyglycerol Sebacate Elastomer: A Critical Overview of Synthetic Methods and Characterisation Techniques. Polymers (Basel) 2024; 16:1405. [PMID: 38794598 PMCID: PMC11124930 DOI: 10.3390/polym16101405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Poly (glycerol sebacate) is a widely studied elastomeric copolymer obtained from the polycondensation of two bioresorbable monomers, glycerol and sebacic acid. Due to its biocompatibility and the possibility to tailor its biodegradability rate and mechanical properties, PGS has gained lots of interest in the last two decades, especially in the soft tissue engineering field. Different synthetic approaches have been proposed, ranging from classic thermal polyesterification and curing to microwave-assisted organic synthesis, UV crosslinking and enzymatic catalysis. Each technique, characterized by its advantages and disadvantages, can be tailored by controlling the crosslinking density, which depends on specific synthetic parameters. In this work, classic and alternative synthetic methods, as well as characterisation and tailoring techniques, are critically reviewed with the aim to provide a valuable tool for the reproducible and customized production of PGS for tissue engineering applications.
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Affiliation(s)
- Mariella Rosalia
- Department of Drug Science, University of Pavia, Via Taramelli 12, 27100 Pavia, Italy; (D.R.); (M.S.); (I.G.); (R.D.); (B.C.)
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3
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Wu Z, Li Q, Wang L, Zhang Y, Liu W, Zhao S, Geng X, Fan Y. A novel biomimetic nanofibrous cardiac tissue engineering scaffold with adjustable mechanical and electrical properties based on poly(glycerol sebacate) and polyaniline. Mater Today Bio 2023; 23:100798. [PMID: 37753375 PMCID: PMC10518490 DOI: 10.1016/j.mtbio.2023.100798] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 09/02/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
Biomaterial tissue engineering scaffolds play a critical role in providing mechanical support, promoting cells growth and proliferation. However, due to the insulation and inappropriate stiffness of most biomaterials, there is an unmet need to engineer a biomimetic nanofibrous cardiac tissue engineering scaffold with tailorable mechanical and electrical properties. Here, we demonstrate for the first time the feasibility to generate a novel type of biocompatible fibrous scaffolds by blending elastic poly(glycerol sebacate) (PGS) and conductive polyaniline (PANI) with the help of a nontoxic carrier polymer, poly (vinyl alcohol) (PVA). Aligned and random PGS/PANI scaffolds are successfully obtained after electrospinning, cross-linking, water and ethanol wash. Incorporating of different concentrations of PANI into PGS fibers, the fibrous sheets show enhanced conductivity and slower degradation rates while maintaining the favorable hemocompatibility. The elastic modulus of the PGS/PANI scaffolds is in the range of 0.65-2.18 MPa under wet conditions, which is similar to that of natural myocardium. All of these fibrous mats show good cell viability and were able to promote adhesion and proliferation of H9c2 cells. Furthermore, the in vivo host responses of both random and aligned scaffolds confirm their good biocompatibility. Therefore, these PGS/PANI scaffolds have great potential for cardiac tissue engineering.
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Affiliation(s)
- Zebin Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Qiao Li
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- School of Engineering Medicine, Beihang University, Beijing 100083, China
| | - Lizhen Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yang Zhang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Wei Liu
- Department of Cardiology, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China
| | - Shudong Zhao
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Xuezheng Geng
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
- School of Engineering Medicine, Beihang University, Beijing 100083, China
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4
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Shiu BC, Wulin S, Yuan QY, Zhang Y, Yu Z. Zn 2+ @Polyvinylpyrrolidone and Urushiol Preparation of Nanofibrous Membranes and Their Synergistic Effect. Macromol Biosci 2023; 23:e2300233. [PMID: 37483109 DOI: 10.1002/mabi.202300233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/09/2023] [Accepted: 07/19/2023] [Indexed: 07/25/2023]
Abstract
In this study, lacquer is gathered from a lacquer tree and rotary evaporation is used to remove impurities to obtain urushiol. Next, 10 mL of anhydrous ethanol serves as the solvent for blending polyvinylpyrrolidone (PVP) at a specified content (0.7 g and 0.2-0.7 g urushiol) to form an electrospinning solution. Electrospinning is carried out with a voltage of 18 kV to prepare PVP/urushiol nanofibrous membranes. At a ratio of 7/4, the PVP/urushiol nanofibrous membranes are not eroded in 98% sulfuric acid and these membranes also demonstrate a 50-60% antibacterial effect against Staphylococcus aureus and Escherichia coli. Moreover, the antibacterial effect can be boosted to 98% with the incorporation of zinc ions. The results indicate that anhydrous ethanol can remove the sensitization of urushiol from PVP/urushiol membranes. Furthermore, animal test results indicate that when rats are in contact with PVP/urushiol anhydrous ethanol for 48 h, their skins are free from dark brown skin allergy. The presence of PVP eliminates the sensitization of urushiol, and the nanofibrous membranes demonstrate low toxicity. Hence, urushiol is the only natural material that enables PVP to withstand 98% sulfuric acid as well as acquire hydrolyzability, thereby qualify PVP as a medical material.
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Affiliation(s)
- Bing-Chiuan Shiu
- Fujian Engineering Research Center of New Chinese lacquer Material College of Material and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, Fujian, 350108, China
| | - Shihan Wulin
- Fujian Engineering Research Center of New Chinese lacquer Material College of Material and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China
| | - Qian-Yu Yuan
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Ying Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Zhicai Yu
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, Fujian, 350108, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing and Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China
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5
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Nitti P, Narayanan A, Pellegrino R, Villani S, Madaghiele M, Demitri C. Cell-Tissue Interaction: The Biomimetic Approach to Design Tissue Engineered Biomaterials. Bioengineering (Basel) 2023; 10:1122. [PMID: 37892852 PMCID: PMC10604880 DOI: 10.3390/bioengineering10101122] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/14/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
The advancement achieved in Tissue Engineering is based on a careful and in-depth study of cell-tissue interactions. The choice of a specific biomaterial in Tissue Engineering is fundamental, as it represents an interface for adherent cells in the creation of a microenvironment suitable for cell growth and differentiation. The knowledge of the biochemical and biophysical properties of the extracellular matrix is a useful tool for the optimization of polymeric scaffolds. This review aims to analyse the chemical, physical, and biological parameters on which are possible to act in Tissue Engineering for the optimization of polymeric scaffolds and the most recent progress presented in this field, including the novelty in the modification of the scaffolds' bulk and surface from a chemical and physical point of view to improve cell-biomaterial interaction. Moreover, we underline how understanding the impact of scaffolds on cell fate is of paramount importance for the successful advancement of Tissue Engineering. Finally, we conclude by reporting the future perspectives in this field in continuous development.
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Affiliation(s)
- Paola Nitti
- Department of Engineering for Innovation, University of Salento, 73100 Lecce, Italy; (A.N.); (R.P.); (S.V.); (M.M.); (C.D.)
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Xu R, Fang Y, Zhang Z, Cao Y, Yan Y, Gan L, Xu J, Zhou G. Recent Advances in Biodegradable and Biocompatible Synthetic Polymers Used in Skin Wound Healing. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5459. [PMID: 37570163 PMCID: PMC10419642 DOI: 10.3390/ma16155459] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/29/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023]
Abstract
The treatment of skin wounds caused by trauma and pathophysiological disorders has been a growing healthcare challenge, posing a great economic burden worldwide. The use of appropriate wound dressings can help to facilitate the repair and healing rate of defective skin. Natural polymer biomaterials such as collagen and hyaluronic acid with excellent biocompatibility have been shown to promote wound healing and the restoration of skin. However, the low mechanical properties and fast degradation rate have limited their applications. Skin wound dressings based on biodegradable and biocompatible synthetic polymers can not only overcome the shortcomings of natural polymer biomaterials but also possess favorable properties for applications in the treatment of skin wounds. Herein, we listed several biodegradable and biocompatible synthetic polymers used as wound dressing materials, such as PVA, PCL, PLA, PLGA, PU, and PEO/PEG, focusing on their composition, fabrication techniques, and functions promoting wound healing. Additionally, the future development prospects of synthetic biodegradable polymer-based wound dressings are put forward. Our review aims to provide new insights for the further development of wound dressings using synthetic biodegradable polymers.
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Affiliation(s)
- Ruojiao Xu
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
| | - Yifeng Fang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
| | - Zhao Zhang
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
| | - Yajie Cao
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
| | - Yujia Yan
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
| | - Li Gan
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
| | - Jinbao Xu
- School of Materials and Energy, Guangdong University of Technology, Guangzhou 510030, China
| | - Guoying Zhou
- College of Life Science, Zhejiang Chinese Medical University, Hangzhou 310053, China; (R.X.); (Y.F.); (Z.Z.); (Y.C.); (Y.Y.); (L.G.)
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7
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Zulkifli MZA, Nordin D, Shaari N, Kamarudin SK. Overview of Electrospinning for Tissue Engineering Applications. Polymers (Basel) 2023; 15:polym15112418. [PMID: 37299217 DOI: 10.3390/polym15112418] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/24/2023] [Accepted: 05/15/2023] [Indexed: 06/12/2023] Open
Abstract
Tissue engineering (TE) is an emerging field of study that incorporates the principles of biology, medicine, and engineering for designing biological substitutes to maintain, restore, or improve tissue functions with the goal of avoiding organ transplantation. Amongst the various scaffolding techniques, electrospinning is one of the most widely used techniques to synthesise a nanofibrous scaffold. Electrospinning as a potential tissue engineering scaffolding technique has attracted a great deal of interest and has been widely discussed in many studies. The high surface-to-volume ratio of nanofibres, coupled with their ability to fabricate scaffolds that may mimic extracellular matrices, facilitates cell migration, proliferation, adhesion, and differentiation. These are all very desirable properties for TE applications. However, despite its widespread use and distinct advantages, electrospun scaffolds suffer from two major practical limitations: poor cell penetration and poor load-bearing applications. Furthermore, electrospun scaffolds have low mechanical strength. Several solutions have been offered by various research groups to overcome these limitations. This review provides an overview of the electrospinning techniques used to synthesise nanofibres for TE applications. In addition, we describe current research on nanofibre fabrication and characterisation, including the main limitations of electrospinning and some possible solutions to overcome these limitations.
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Affiliation(s)
- Muhammad Zikri Aiman Zulkifli
- Department of Chemical & Process Engineering, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Darman Nordin
- Department of Chemical & Process Engineering, Faculty of Engineering & Build Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Norazuwana Shaari
- Full Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
| | - Siti Kartom Kamarudin
- Full Cell Institute, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
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Cross-Linked Gamma Polyglutamic Acid/Human Hair Keratin Electrospun Nanofibrous Scaffolds with Excellent Biocompatibility and Biodegradability. Polymers (Basel) 2022; 14:polym14245505. [PMID: 36559871 PMCID: PMC9781754 DOI: 10.3390/polym14245505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/10/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Recently, human hair keratin has been widely studied and applied in clinical fields due to its good histocompatibility, biocompatibility, and biodegradability. However, the regenerated keratin from human hair cannot be electrospun alone because of its low molecular weight. Herein, gamma polyglutamic acid (γ-PGA) was first selected to fabricate smooth and uniform γ-PGA/keratin composite scaffolds with excellent biocompatibility and biodegradability by electrospinning technology and a chemical cross-linking method in this study. The effect of electrospinning parameters on the structure and morphology, the mechanism of chemical cross-linking, biocompatibility in vitro cell culture experiments, and biodegradability in phosphate-buffered saline buffer solution and trypsin solution of the γ-PGA/keratin electrospun nanofibrous scaffolds (ENS) was studied. The results show that the cross-linked γ-PGA/keratin ENSs had excellent water stability and biodegradability. The γ-PGA/keratin ENSs showed better biocompatibility in promoting cell adhesion and cell growth compared with the γ-PGA ENSs. It is expected that γ-PGA/keratin ENSs will be easily and significantly used in tissue engineering to repair or regenerate materials.
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Yu L, Zeng G, Xu J, Han M, Wang Z, Li T, Long M, Wang L, Huang W, Wu Y. Development of Poly(Glycerol Sebacate) and Its Derivatives: A Review of the Progress over the past Two Decades. POLYM REV 2022. [DOI: 10.1080/15583724.2022.2150774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Liu Yu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Guanjie Zeng
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Jie Xu
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Mingying Han
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Zihan Wang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China
| | - Ting Li
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Meng Long
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Ling Wang
- Biomaterials Research Center, School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Wenhua Huang
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yaobin Wu
- Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, Guangdong Provincial Key Laboratory of Digital Medicine and Biomechanics, Department of Human Anatomy, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
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Solvent-Free Production by Extrusion of Bio-Based Poly(glycerol-co-diacids) Sheets for the Development of Biocompatible and Electroconductive Elastomer Composites. Polymers (Basel) 2022; 14:polym14183829. [PMID: 36145974 PMCID: PMC9502118 DOI: 10.3390/polym14183829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 11/17/2022] Open
Abstract
Faced with growing global demand for new potent, bio-based, biocompatible elastomers, the present study reports the solvent-free production of 13 pure and derived poly(glycerol-co-diacid) composite sheets exclusively using itaconic acid, sebacic acid, and 2,5-furandicarboxylic acid (FDCA) with glycerol. Herein, modified melt polycondensation and Co(II)-catalyzed polytransesterification were employed to produce all exploitable prepolymers, enabling the easy and rapid manufacturing of elastomer sheets by extrusion. Most of our samples were loaded with 4 wt% of various additives such as natural polysaccharides, synthetic polymers, and/or 25 wt% sodium chloride as porogen agents. The removal of unreacted monomers and acidic short oligomers was carried out by means of washing with NaHCO3 aqueous solution, and pH monitoring was conducted until efficient sheet surface neutralization. For each sheet, their surface morphologies were observed by Field-emission microscopy, and DSC was used to confirm their amorphous nature and the impact of the introduction of every additive. The chemical constitution of the materials was monitored by FTIR. Then, cytotoxicity tests were performed for six of our most promising candidates. Finally, we achieved the production of two different types of extrusion-made PGS elastomers loaded with 10 wt% PANI particulates and 4 wt% microcrystalline cellulose for adding potential electroconductivity and stability to the material, respectively. In a preliminary experiment, we showed the effectiveness of these materials as performant, time-dependent electric pH sensors when immersed in a persistent HCl atmosphere.
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Domljanovic I, Ianiro A, Rüegg C, Mayer M, Taskova M. Natural and Modified Oligonucleotide Sequences Show Distinct Strand Displacement Kinetics and These Are Affected Further by Molecular Crowders. Biomolecules 2022; 12:biom12091249. [PMID: 36139087 PMCID: PMC9496266 DOI: 10.3390/biom12091249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/02/2022] [Accepted: 09/04/2022] [Indexed: 11/25/2022] Open
Abstract
DNA and RNA strand exchange is a process of fundamental importance in biology. Herein, we used a FRET-based assay to investigate, for the first time, the stand exchange kinetics of natural DNA, natural RNA, and locked nucleic acid (LNA)-modified DNA sequences in vitro in PBS in the absence or presence of molecular additives and macromolecular crowders such as diethylene glycol dimethyl ether (deg), polyethylene glycol (peg), and polyvinylpyrrolidone (pvp). The results show that the kinetics of strand exchange mediated by DNA, RNA, and LNA-DNA oligonucleotide sequences are different. Different molecular crowders further affect the strand displacement kinetics, highlighting the complexity of the process of nucleic acid strand exchange as it occurs in vivo. In a peg-containing buffer, the rate constant of displacement was slightly increased for the DNA displacement strand, while it was slightly decreased for the RNA and the LNA-DNA strands compared with displacement in pure PBS. When we used a deg-containing buffer, the rate constants of displacement for all three sequences were drastically increased compared with displacement in PBS. Overall, we show that interactions of the additives with the duplex strands have a significant effect on the strand displacement kinetics and this effect can exceed the one exerted by the chemical nature of the displacement strand itself.
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Affiliation(s)
- Ivana Domljanovic
- Laboratory of Experimental and Translational Oncology, Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, PER17, 1700 Fribourg, Switzerland
| | - Alessandro Ianiro
- BioPhysics, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, PER 18, 1700 Fribourg, Switzerland
| | - Curzio Rüegg
- Laboratory of Experimental and Translational Oncology, Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, PER17, 1700 Fribourg, Switzerland
| | - Michael Mayer
- BioPhysics, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, PER 18, 1700 Fribourg, Switzerland
| | - Maria Taskova
- BioPhysics, Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, PER 18, 1700 Fribourg, Switzerland
- Correspondence:
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Doustdar F, Ghorbani M. ZIF-8 enriched electrospun ethyl cellulose/polyvinylpyrrolidone scaffolds: The key role of polyvinylpyrrolidone molecular weight. Carbohydr Polym 2022; 291:119620. [DOI: 10.1016/j.carbpol.2022.119620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/06/2022] [Accepted: 05/10/2022] [Indexed: 02/06/2023]
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Uhljar LÉ, Alshweiat A, Katona G, Chung M, Radacsi N, Kókai D, Burián K, Ambrus R. Comparison of Nozzle-Based and Nozzle-Free Electrospinning for Preparation of Fast-Dissolving Nanofibers Loaded with Ciprofloxacin. Pharmaceutics 2022; 14:pharmaceutics14081559. [PMID: 36015184 PMCID: PMC9413034 DOI: 10.3390/pharmaceutics14081559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 07/21/2022] [Accepted: 07/26/2022] [Indexed: 11/16/2022] Open
Abstract
The study aimed to prepare ciprofloxacin-loaded polyvinylpyrrolidone electrospun nanofibers for oral drug delivery, using a conventional nozzle-based and a lab-built nozzle-free electrospinning equipment. To produce nanofibers, electrospinning is the process most often used. However, from the industry’s point of view, conventional electrospinning does not have sufficiently high productivity. By omitting the nozzle, productivity can be increased, and so the development of nozzle-free processes is worthwhile. In this study, a solution of ciprofloxacin and polyvinylpyrrolidone was electrospun under similar conditions, using both single-nozzle and nozzle-free methods. The two electrospinning methods were compared by investigating the morphological and physicochemical properties, homogeneity, in vitro drug release, and cytotoxicity. The stability of the nanofibers was monitored from different aspects in a 26 month stability study. The results showed that the use of the nozzle-free electrospinning was preferable due to a higher throughput, improved homogeneity, and the enhanced stability of nanofiber mats, compared to the nozzle-based method. Nevertheless, fast dissolving nanofibers loaded with poorly water-soluble ciprofloxacin were produced by both electrospinning methods. The beneficial properties of these nanofibers can be exploited in innovative drug development; e.g., nanofibers can be formulated into orodispersible films or per os tablets.
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Affiliation(s)
- Luca Éva Uhljar
- Faculty of Pharmacy, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös Street 6, 6720 Szeged, Hungary; (L.É.U.); (G.K.)
| | - Areen Alshweiat
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, The Hashemite University, Zarqa 13133, Jordan;
| | - Gábor Katona
- Faculty of Pharmacy, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös Street 6, 6720 Szeged, Hungary; (L.É.U.); (G.K.)
| | - Michael Chung
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King’s Buildings, Edinburgh EH9 3FB, UK; (M.C.); (N.R.)
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King’s Buildings, Edinburgh EH9 3FB, UK; (M.C.); (N.R.)
| | - Dávid Kókai
- Department of Medical Microbiology and Immunobiology, University of Szeged, Dóm Square 10, 6720 Szeged, Hungary; (D.K.); (K.B.)
| | - Katalin Burián
- Department of Medical Microbiology and Immunobiology, University of Szeged, Dóm Square 10, 6720 Szeged, Hungary; (D.K.); (K.B.)
| | - Rita Ambrus
- Faculty of Pharmacy, Interdisciplinary Excellence Centre, Institute of Pharmaceutical Technology and Regulatory Affairs, University of Szeged, Eötvös Street 6, 6720 Szeged, Hungary; (L.É.U.); (G.K.)
- Correspondence:
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14
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Sahrayi H, Hosseini E, Ramazani Saadatabadi A, Atyabi SM, Bakhshandeh H, Mohamadali M, Aidun A, Farasati Far B. Cold atmospheric plasma modification and electrical conductivity induction in gelatin/polyvinylidene fluoride nanofibers for neural tissue engineering. Artif Organs 2022; 46:1504-1521. [PMID: 35403725 DOI: 10.1111/aor.14258] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/25/2022] [Accepted: 04/01/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND This research follows some investigations through neural tissue engineering, including fabrication, surface treatment, and evaluation of novel self-stimuli conductive biocompatible and degradable nanocomposite scaffolds. METHODS Gelatin as a biobased material and polyvinylidene fluoride (PVDF) as a mechanical, electrical, and piezoelectric improvement agent were co-electrospun. In addition, polyaniline/graphene (PAG) nanoparticles were synthesized and added to gelatin solutions in different percentages to induce electrical conductivity. After obtaining optimum PAG percentage, cold atmospheric plasma (CAP) treatment was applied over the best samples by different plasma variable parameters. Finally, the biocompatibility of the scaffolds was analyzed and approved by in vitro tests using two different PC12 and C6 cell lines. In the present study the morphology, FTIR, dynamic light scattering, mechanical properties, wettability, contact angle tests, differential scanning calorimetric, rate of degradation, conductivity, biocompatibility, gene expression, DAPI staining, and cell proliferation were investigated. RESULTS The PAG percentage optimization results revealed fiber diameter reduction, conductivity enhancement, young's modulus improvement, hydrophilicity devaluation, water uptake decrement, and degradability reduction in electrospun nanofibers by increasing the PAG concentration. Furthermore, ATR-FTIR, FE-SEM, AFM, and contact angle tests revealed that helium CAP treatment improves scaffold characterizations for 90 seconds in duration time. Furthermore, the results of the MTT assay, FE-SEM, DAPI staining, and RT-PCR revealed that samples containing 2.5% w/w of PAG are the most biocompatible, and CAP treatment increases cell proliferation and improves neural gene expression in the differentiation medium. CONCLUSIONS According to the results, the samples with the 2.5% w/w of PAG could provide a suitable matrix for neural tissue engineering in terms of physicochemical and biological.
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Affiliation(s)
- Hamidreza Sahrayi
- Department of Chemical and Petrochemical Engineering, Sharif University of Technology, Tehran, Iran
| | - Elham Hosseini
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | | | - Seyed Mohammad Atyabi
- Department of Nano biotechnology, New Technologies Research Group, Pasteur Institute of Iran, Tehran, Iran
| | - Haleh Bakhshandeh
- Department of Nano biotechnology, New Technologies Research Group, Pasteur Institute of Iran, Tehran, Iran
| | - Marjan Mohamadali
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Amir Aidun
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran.,Tissues and Biomaterials Research Group (TBRG), Universal Scientific Education and Research Network (USERN), Tehran, Iran
| | - Bahareh Farasati Far
- Department of Chemistry, Iran University of Science and Technology, Tehran, Iran
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15
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Zulkifli Z, Tan JJ, Ku Marsilla KI, Rusli A, Abdullah MK, Shuib RK, Shafiq MD, Abdul Hamid ZA. Shape memory poly (glycerol sebacate)‐based electrospun fiber scaffolds for tissue engineering applications: A review. J Appl Polym Sci 2022. [DOI: 10.1002/app.52272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zulaikha Zulkifli
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| | - Jun Jie Tan
- Regenerative Medicine Cluster, Advanced Medical & Dental Institute Universiti Sains Malaysia Kepala Batas Malaysia
| | - Ku Ishak Ku Marsilla
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| | - Arjulizan Rusli
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| | - Muhammad Khalil Abdullah
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| | - Raa Khimi Shuib
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| | - Mohamad Danial Shafiq
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
| | - Zuratul Ain Abdul Hamid
- School of Materials & Mineral Resources Engineering Universiti Sains Malaysia, Engineering Campus Nibong Tebal Pulau Pinang Malaysia
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16
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Semitela Â, Leal Pereira A, Sousa C, Mendes AF, Marques PAAP, Completo A. Multi-layered electrospinning and electrospraying approach: Effect of polymeric supplements on chondrocyte suspension. J Biomater Appl 2021; 36:1629-1640. [PMID: 34970927 DOI: 10.1177/08853282211064403] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Articular cartilage was expected to be one of the first tissues to be successfully engineered, but replicating the complex fibril architecture and the cellular distribution of the native cartilage has proven difficult. While electrospinning has been widely used to reproduce the depth-dependent fibre architecture in 3D scaffolds, the chondrocyte-controlled distribution remains an unsolved problem. To incorporate cells homogeneously through the depth of scaffolds, a combination of polymer electrospinning and cell seeding is necessary. A multi-layer approach alternating between polymer electrospinning with chondrocyte electrospraying can be a solution. Still, the success of this process is related to the survival rate of the electrosprayed chondrocytes embedded within the electrospun mesh. In this regard, the present study investigated the impact of the multi-layered process and the supplementation of the electrospray chondrocyte suspension with different concentrations of Gelatin and Alginate on the viability of electrosprayed chondrocytes embedded within a Polycaprolactone/Gelatin electrospun mesh and on the mechanical properties of the resulting meshes. The addition of Gelatin in the chondrocyte suspension did not increase significantly (p > 0.05) the percentage of viable electrosprayed chondrocytes (25%), while 3 wt% Alginate addition led to a significant (p < 0.05) increase in chondrocyte viability (50%) relative to the case without polymer supplement (15%). Furthermore, the addition of both polymer supplements increased the mechanical properties of the multi-layer construct. These findings imply that this multi-layered approach can be applied to cartilage TE allowing for automated chondrocyte integration during scaffolds creation.
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Affiliation(s)
- Ângela Semitela
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
| | - Andreia Leal Pereira
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
| | - Cátia Sousa
- 530237Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Alexandrina F Mendes
- 530237Centre for Neuroscience and Cell Biology (CNC), University of Coimbra, Coimbra, Portugal
| | - Paula A A P Marques
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
| | - António Completo
- 56062Centre of Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
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17
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Farjaminejad S, Shojaei S, Goodarzi V, Ali Khonakdar H, Abdouss M. Tuning properties of bio-rubbers and its nanocomposites with addition of succinic acid and ɛ-caprolactone monomers to poly(glycerol sebacic acid) as main platform for application in tissue engineering. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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Wei C, Feng Y, Che D, Zhang J, Zhou X, Shi Y, Wang L. Biomaterials in skin tissue engineering. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1933977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Chao Wei
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Yihua Feng
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Dezhao Che
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Jiahui Zhang
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Xuan Zhou
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Yanbin Shi
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
| | - Li Wang
- Mechanical and Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong, China
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19
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Wu Z, Jin K, Wang L, Fan Y. A Review: Optimization for Poly(glycerol sebacate) and Fabrication Techniques for Its Centered Scaffolds. Macromol Biosci 2021; 21:e2100022. [PMID: 34117837 DOI: 10.1002/mabi.202100022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 04/26/2021] [Indexed: 12/29/2022]
Abstract
Poly(glycerol sebacate) (PGS), an emerging promising thermosetting polymer synthesized from sebacic acid and glycerol, has attracted considerable attention due to its elasticity, biocompatibility, and tunable biodegradation properties. But it also has some drawbacks such as harsh synthesis conditions, rapid degradation rates, and low stiffness. To overcome these challenges and optimize PGS performance, various modification methods and fabrication techniques for PGS-based scaffolds have been developed in recent years. Outlining the current modification approaches of PGS and summarizing the fabrication techniques for PGS-based scaffolds are of great importance to accelerate the development of new materials and enable them to be appropriately used in potential applications. Thus, this review comprehensively overviews PGS derivatives, PGS composites, PGS blends, processing for PGS-based scaffolds, and their related applications. It is envisioned that this review could instruct and inspire the design of the PGS-based materials and facilitate tissue engineering advances into clinical practice.
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Affiliation(s)
- Zebin Wu
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Kaixiang Jin
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Lizhen Wang
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China
| | - Yubo Fan
- Key Laboratory for Biomechanics and Mechanobiology of Ministry of Education, Beijing Advanced Innovation Centre for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing, 100083, China.,School of Medical Science and Engineering, Beihang University, Beijing, 100083, China
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20
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Lin Z, Zhao C, Lei Z, Zhang Y, Huang R, Lin B, Dong Y, Zhang H, Li J, Li X. Epidermal stem cells maintain stemness via a biomimetic micro/nanofiber scaffold that promotes wound healing by activating the Notch signaling pathway. Stem Cell Res Ther 2021; 12:341. [PMID: 34112252 PMCID: PMC8193873 DOI: 10.1186/s13287-021-02418-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 05/25/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Epidermal stem cells (EpSCs) play a vital role in wound healing and skin renewal. Although biomaterial scaffolds have been used for transplantation of EpSCs in wound healing, the ex vivo differentiation of EpSCs limits their application. METHODS To inhibit the differentiation of EpSCs and maintain their stemness, we developed an electrospun polycaprolactone (PCL)+cellulose acetate (CA) micro/nanofiber for the culture and transplantation of EpSCs. The modulation effect on EpSCs of the scaffold and the underlying mechanism were explored. Liquid chromatography-tandem mass spectrometry for label-free quantitative proteomics was used to analyze proteomic changes in EpSCs cultured on scaffolds. In addition, the role of transplanted undifferentiated EpSCs in wound healing was also studied. RESULTS In this study, we found that the PCL+CA micro/nanofiber scaffold can inhibit the differentiation of EpSCs through YAP activation-mediated inhibition of the Notch signaling pathway. Significantly differentially expressed proteomics was observed in EpSCs cultured on scaffolds and IV collagen-coated culture dishes. Importantly, differential expression levels of ribosome-related proteins and metabolic pathway-related proteins were detected. Moreover, undifferentiated EpSCs transplanted with the PCL+CA scaffold can promote wound healing through the activation of the Notch signaling pathway in rat full-thickness skin defect models. CONCLUSIONS Overall, our study demonstrated the role of the PCL+CA micro-nanofiber scaffold in maintaining the stemness of EpSCs for wound healing, which can be helpful for the development of EpSCs maintaining scaffolds and exploration of interactions between biomaterials and EpSCs.
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Affiliation(s)
- Zhixiao Lin
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Congying Zhao
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Zhanjun Lei
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Yuheng Zhang
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Rong Huang
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Bin Lin
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Yuchen Dong
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Hao Zhang
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China
| | - Jinqing Li
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China.
| | - Xueyong Li
- Department of Plastic Surgery, Tangdu Hospital, Airforce Military Medical University, Xi'an, 710038, China.
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21
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Affiliation(s)
- Kanchan Maji
- Center of Excellence in Tissue Engineering, Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
| | - Krishna Pramanik
- Center of Excellence in Tissue Engineering, Department of Biotechnology and Medical Engineering, National Institute of Technology, Rourkela, India
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22
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Waqas M, Keirouz A, Sanira Putri MK, Fazal F, Diaz Sanchez FJ, Ray D, Koutsos V, Radacsi N. Design and development of a nozzle-free electrospinning device for the high-throughput production of biomaterial nanofibers. Med Eng Phys 2021; 92:80-87. [PMID: 34167715 DOI: 10.1016/j.medengphy.2021.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 04/10/2021] [Accepted: 04/29/2021] [Indexed: 12/13/2022]
Abstract
This technical note provides a step-by-step guide for the design and construction of a temperature-controlled nozzle-free electrospinning device. The equipment uses a rotating mandrel partially immersed within a polymer solution to produce fibers in an upward motion by inducing the formation of multiple Taylor cones and subsequently multi-jetting out of an electrified open surface. Free-surface electrospinning can overcome limitations and drawbacks associated with single and multi-nozzle spinneret configurations, such as low yield, limited production capacity, nonuniform electric field distribution, and clogging. Most importantly, this lab-scaled high-throughput device can provide an alternative economical route for needleless electrospinning research, in contrast to the high costs associated with industrially available upscaling equipment. Among the device's technical specifications, a key feature is a cryo-collector mandrel, capable of collecting fibers in sub-zero temperatures, which can induce ultra-porous nanostructures, wider pores, and subsequent in-depth penetration of cells. A multi-channel gas chamber allows the conditioning of the atmosphere, temperature, and airflow, while the chamber's design averts user exposure to the high-voltage components. All the Computer-Aided Design (CAD) files and point-by-point assembly instructions, along with a list of the materials used, are provided.
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Affiliation(s)
- Muhammad Waqas
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom
| | - Antonios Keirouz
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom
| | - Maria Kana Sanira Putri
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom
| | - Faraz Fazal
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom.; Department of Mechanical Engineering, University of Engineering and Technology, Lahore, (city campus) Pakistan
| | - Francisco Javier Diaz Sanchez
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom
| | - Dipa Ray
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom
| | - Vasileios Koutsos
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, United Kingdom..
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23
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Vogt L, Ruther F, Salehi S, Boccaccini AR. Poly(Glycerol Sebacate) in Biomedical Applications-A Review of the Recent Literature. Adv Healthc Mater 2021; 10:e2002026. [PMID: 33733604 DOI: 10.1002/adhm.202002026] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/10/2021] [Indexed: 12/13/2022]
Abstract
Poly(glycerol sebacate) (PGS) continues to attract attention for biomedical applications owing to its favorable combination of properties. Conventionally polymerized by a two-step polycondensation of glycerol and sebacic acid, variations of synthesis parameters, reactant concentrations or by specific chemical modifications, PGS materials can be obtained exhibiting a wide range of physicochemical, mechanical, and morphological properties for a variety of applications. PGS has been extensively used in tissue engineering (TE) of cardiovascular, nerve, cartilage, bone and corneal tissues. Applications of PGS based materials in drug delivery systems and wound healing are also well documented. Research and development in the field of PGS continue to progress, involving mainly the synthesis of modified structures using copolymers, hybrid, and composite materials. Moreover, the production of self-healing and electroactive materials has been introduced recently. After almost 20 years of research on PGS, previous publications have outlined its synthesis, modification, properties, and biomedical applications, however, a review paper covering the most recent developments in the field is lacking. The present review thus covers comprehensively literature of the last five years on PGS-based biomaterials and devices focusing on advanced modifications of PGS for applications in medicine and highlighting notable advances of PGS based systems in TE and drug delivery.
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Affiliation(s)
- Lena Vogt
- Institute of Biomaterials University Erlangen‐Nuremberg Erlangen 91058 Germany
| | - Florian Ruther
- Institute of Biomaterials University Erlangen‐Nuremberg Erlangen 91058 Germany
| | - Sahar Salehi
- Chair of Biomaterials University of Bayreuth Bayreuth 95447 Germany
| | - Aldo R. Boccaccini
- Institute of Biomaterials University Erlangen‐Nuremberg Erlangen 91058 Germany
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24
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Neubauer VJ, Döbl A, Scheibel T. Silk-Based Materials for Hard Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:674. [PMID: 33535662 PMCID: PMC7867174 DOI: 10.3390/ma14030674] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 02/07/2023]
Abstract
Hard tissues, e.g., bone, are mechanically stiff and, most typically, mineralized. To design scaffolds for hard tissue regeneration, mechanical, physico-chemical and biological cues must align with those found in the natural tissue. Combining these aspects poses challenges for material and construct design. Silk-based materials are promising for bone tissue regeneration as they fulfill several of such necessary requirements, and they are non-toxic and biodegradable. They can be processed into a variety of morphologies such as hydrogels, particles and fibers and can be mineralized. Therefore, silk-based materials are versatile candidates for biomedical applications in the field of hard tissue engineering. This review summarizes silk-based approaches for mineralized tissue replacements, and how to find the balance between sufficient material stiffness upon mineralization and cell survival upon attachment as well as nutrient supply.
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Affiliation(s)
- Vanessa J. Neubauer
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.J.N.); (A.D.)
| | - Annika Döbl
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.J.N.); (A.D.)
| | - Thomas Scheibel
- Lehrstuhl Biomaterialien, Fakultät für Ingenieurwissenschaften, Universität Bayreuth, Prof.-Rüdiger-Bormann-Straße 1, 95447 Bayreuth, Germany; (V.J.N.); (A.D.)
- Bayreuther Zentrum für Kolloide und Grenzflächen (BZKG), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayerisches Polymerinstitut (BPI), Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Zentrum für Molekulare Biowissenschaften (BZMB), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
- Bayreuther Materialzentrum (BayMAT), Universität Bayreuth, Universitätsstraße 30, 95440 Bayreuth, Germany
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25
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Moysidou CM, Barberio C, Owens RM. Advances in Engineering Human Tissue Models. Front Bioeng Biotechnol 2021; 8:620962. [PMID: 33585419 PMCID: PMC7877542 DOI: 10.3389/fbioe.2020.620962] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/22/2020] [Indexed: 12/11/2022] Open
Abstract
Research in cell biology greatly relies on cell-based in vitro assays and models that facilitate the investigation and understanding of specific biological events and processes under different conditions. The quality of such experimental models and particularly the level at which they represent cell behavior in the native tissue, is of critical importance for our understanding of cell interactions within tissues and organs. Conventionally, in vitro models are based on experimental manipulation of mammalian cells, grown as monolayers on flat, two-dimensional (2D) substrates. Despite the amazing progress and discoveries achieved with flat biology models, our ability to translate biological insights has been limited, since the 2D environment does not reflect the physiological behavior of cells in real tissues. Advances in 3D cell biology and engineering have led to the development of a new generation of cell culture formats that can better recapitulate the in vivo microenvironment, allowing us to examine cells and their interactions in a more biomimetic context. Modern biomedical research has at its disposal novel technological approaches that promote development of more sophisticated and robust tissue engineering in vitro models, including scaffold- or hydrogel-based formats, organotypic cultures, and organs-on-chips. Even though such systems are necessarily simplified to capture a particular range of physiology, their ability to model specific processes of human biology is greatly valued for their potential to close the gap between conventional animal studies and human (patho-) physiology. Here, we review recent advances in 3D biomimetic cultures, focusing on the technological bricks available to develop more physiologically relevant in vitro models of human tissues. By highlighting applications and examples of several physiological and disease models, we identify the limitations and challenges which the field needs to address in order to more effectively incorporate synthetic biomimetic culture platforms into biomedical research.
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Affiliation(s)
| | | | - Róisín Meabh Owens
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, United Kingdom
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Biazar E, Kamalvand M, Avani F. Recent advances in surface modification of biopolymeric nanofibrous scaffolds. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2020.1857383] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Esmaeil Biazar
- Department of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Mahshad Kamalvand
- Department of Biomaterials Engineering, Tonekabon Branch, Islamic Azad University, Tonekabon, Iran
| | - Farzaneh Avani
- Biomedical Engineering Faculty, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
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27
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Hajikhani M, Emam-Djomeh Z, Askari G. Fabrication and characterization of mucoadhesive bioplastic patch via coaxial polylactic acid (PLA) based electrospun nanofibers with antimicrobial and wound healing application. Int J Biol Macromol 2021; 172:143-153. [PMID: 33450342 DOI: 10.1016/j.ijbiomac.2021.01.051] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 12/13/2022]
Abstract
Polylactic acid (PLA) is the second-highest consumed bioplastic in the world. PVP/PLA-PEO complex nanofibers encapsulating collagen and cefazolin dressing scaffold were fabricated using a coaxial electrospinning method to target the release of the encapsulated compounds. It was observed that in collagen doses of 10 and 20%, the speed of healing showed a significant difference with the control sample, but the dose of 40% caused a decrease in wound healing rate in mice. The nanofibers' morphology and surface roughness were investigated by scanning electron microscopy (SEM) and atomic force microscopy (AFM), respectively. The mechanical properties and adhesion strength of the scaffolds were investigated. The scaffolds' antimicrobial activity was evaluated by disk diffusion method against the E. coli, S. aureus, and P. aeruginosa. The results indicated a positive effect on the antimicrobial activity of the samples. In this study, we were able to prolong the effect of scaffolds by changing the pattern of release of cefazolin from inside the nanofibers. Possible interactions between the polymers and the encapsulated compounds were investigated using Fourier-transform infrared spectroscopy (FTIR). Finally, in-vivo and histological tests were performed to evaluate the efficacy of the scaffolds in accelerating wound healing.
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Affiliation(s)
- Mehdi Hajikhani
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Technology and Engineering Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj Campus, Karaj, Iran
| | - Zahra Emam-Djomeh
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Technology and Engineering Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj Campus, Karaj, Iran; Center of Excellence in Biothermodynamics, University of Tehran, Tehran, Iran.
| | - Gholamreza Askari
- Transfer Phenomena Laboratory (TPL), Controlled Release Center, Department of Food Science, Technology and Engineering Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj Campus, Karaj, Iran
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28
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Yu C, Schimelman J, Wang P, Miller KL, Ma X, You S, Guan J, Sun B, Zhu W, Chen S. Photopolymerizable Biomaterials and Light-Based 3D Printing Strategies for Biomedical Applications. Chem Rev 2020; 120:10695-10743. [PMID: 32323975 PMCID: PMC7572843 DOI: 10.1021/acs.chemrev.9b00810] [Citation(s) in RCA: 198] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Since the advent of additive manufacturing, known commonly as 3D printing, this technology has revolutionized the biofabrication landscape and driven numerous pivotal advancements in tissue engineering and regenerative medicine. Many 3D printing methods were developed in short course after Charles Hull first introduced the power of stereolithography to the world. However, materials development was not met with the same enthusiasm and remained the bottleneck in the field for some time. Only in the past decade has there been deliberate development to expand the materials toolbox for 3D printing applications to meet the true potential of 3D printing technologies. Herein, we review the development of biomaterials suited for light-based 3D printing modalities with an emphasis on bioprinting applications. We discuss the chemical mechanisms that govern photopolymerization and highlight the application of natural, synthetic, and composite biomaterials as 3D printed hydrogels. Because the quality of a 3D printed construct is highly dependent on both the material properties and processing technique, we included a final section on the theoretical and practical aspects behind light-based 3D printing as well as ways to employ that knowledge to troubleshoot and standardize the optimization of printing parameters.
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Affiliation(s)
- Claire Yu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jacob Schimelman
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Pengrui Wang
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Kathleen L Miller
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Xuanyi Ma
- Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Shangting You
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jiaao Guan
- Department of Electrical and Computer Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Bingjie Sun
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Wei Zhu
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Shaochen Chen
- Department of NanoEngineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Department of Bioengineering, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Chemical Engineering Program, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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29
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Electrospun fibers based on carbohydrate gum polymers and their multifaceted applications. Carbohydr Polym 2020; 247:116705. [PMID: 32829833 DOI: 10.1016/j.carbpol.2020.116705] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/12/2020] [Accepted: 06/28/2020] [Indexed: 12/29/2022]
Abstract
Electrospinning has garnered significant attention in view of its many advantages such as feasibility for various polymers, scalability required for mass production, and ease of processing. Extensive studies have been devoted to the use of electrospinning to fabricate various electrospun nanofibers derived from carbohydrate gum polymers in combination with synthetic polymers and/or additives of inorganic or organic materials with gums. In view of the versatility and the widespread choice of precursors that can be deployed for electrospinning, various gums from both, the plants and microbial-based gum carbohydrates are holistically and/or partially included in the electrospinning solution for the preparation of functional composite nanofibers. Moreover, our strategy encompasses a combination of natural gums with other polymers/inorganic or nanoparticles to ensue distinct properties. This early established milestone in functional carbohydrate gum polymer-based composite nanofibers may be deployed by specialized researchers in the field of nanoscience and technology, and especially for exploiting electrospinning of natural gums composites for diverse applications.
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30
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Jiao Y, Li C, Liu L, Wang F, Liu X, Mao J, Wang L. Construction and application of textile-based tissue engineering scaffolds: a review. Biomater Sci 2020; 8:3574-3600. [PMID: 32555780 DOI: 10.1039/d0bm00157k] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Tissue engineering (TE) provides a practicable method for tissue and organ repair or substitution. As the most important component of TE, a scaffold plays a critical role in providing a growing environment for cell proliferation and functional differentiation as well as good mechanical support. And the restorative effects are greatly dependent upon the nature of the scaffold including the composition, morphology, structure, and mechanical performance. Medical textiles have been widely employed in the clinic for a long time and are being extensively investigated as TE scaffolds. However, unfortunately, the advantages of textile technology cannot be fully exploited in tissue regeneration due to the ignoring of the diversity of fabric structures. Therefore, this review focuses on textile-based scaffolds, emphasizing the significance of the fabric design and the resultant characteristics of cell behavior and extracellular matrix reconstruction. The structure and mechanical behavior of the fabrics constructed by various textile techniques for different tissue repairs are summarized. Furthermore, the prospect of structural design in the TE scaffold preparation was anticipated, including profiled fibers and some unique and complex textile structures. Hopefully, the readers of this review would appreciate the importance of structural design of the scaffold and the usefulness of textile-based TE scaffolds in tissue regeneration.
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Affiliation(s)
- Yongjie Jiao
- Key Laboratory of Textile Science and Technology of Ministry of Education and College of Textiles, Donghua University, Shanghai 201620, China.
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31
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Wang Y, Yue G, Li D, Hou L, Zhao X, Cui Z, Bai J, Wang N, Zhao Y. A Robust Carbon Nanotube and PVDF‐HFP Nanofiber Composite Superwettability Membrane for High‐Efficiency Emulsion Separation. Macromol Rapid Commun 2020; 41:e2000089. [DOI: 10.1002/marc.202000089] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Yaqiong Wang
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Guichu Yue
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Dianming Li
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Lanlan Hou
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Xiaochen Zhao
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Zhimin Cui
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Jie Bai
- Chemical Engineering CollegeInner Mongolia University of TechnologyInner Mongolia Key Laboratory of Industrial Catalysis Hohhot 010051 P. R. China
| | - Nü Wang
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
| | - Yong Zhao
- Key Laboratory of Bio‐Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Advanced Innovation Center for Biomedical EngineeringSchool of Chemistry, Beihang University Beijing 100191 P. R. China
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Keirouz A, Zakharova M, Kwon J, Robert C, Koutsos V, Callanan A, Chen X, Fortunato G, Radacsi N. High-throughput production of silk fibroin-based electrospun fibers as biomaterial for skin tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110939. [PMID: 32409085 DOI: 10.1016/j.msec.2020.110939] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 01/23/2020] [Accepted: 04/06/2020] [Indexed: 11/19/2022]
Abstract
In this work, a nozzle-free electrospinning device was built to obtain high-throughput production of silk fibroin-based biocompatible composite fibers with tunable wettability. Synthetic biomaterials tend to present suboptimal cell growth and proliferation, with many studies linking this phenomenon to the hydrophobicity of such surfaces. In this study, electrospun mats consisting of Poly(caprolactone) blended with variant forms of Poly(glycerol sebacate) (PGS) and regenerated silk fibroin were fabricated. The main aim of this work was the development of fiber mats with tunable hydrophobicity/hydrophilicity properties depending on the esterification degree and concentration of PGS. A variation of the conventional protocol used for the extraction of silk fibroin from Bombyx mori cocoons was employed, achieving significantly increased yields of the protein, in a third of the time required via the conventional extraction protocol. By altering the surface properties of the electrospun membranes, the trinary composite biomaterial presented good in vitro fibroblast attachment behavior and optimal growth, indicating the potential of such constructs towards the development of an artificial skin-like platform that can aid wound healing and skin regeneration.
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Affiliation(s)
- Antonios Keirouz
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom; Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Mariia Zakharova
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom
| | - Jaehoon Kwon
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom
| | - Colin Robert
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom
| | - Vasileios Koutsos
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom
| | - Anthony Callanan
- School of Engineering, Institute for Bioengineering, The University of Edinburgh, King's Buildings, Edinburgh EH9 3JL, United Kingdom
| | - Xianfeng Chen
- School of Engineering, Institute for Bioengineering, The University of Edinburgh, King's Buildings, Edinburgh EH9 3JL, United Kingdom
| | - Giuseppino Fortunato
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King's Buildings, Edinburgh EH9 3FB, United Kingdom.
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33
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Keirouz A, Radacsi N, Ren Q, Dommann A, Beldi G, Maniura-Weber K, Rossi RM, Fortunato G. Nylon-6/chitosan core/shell antimicrobial nanofibers for the prevention of mesh-associated surgical site infection. J Nanobiotechnology 2020; 18:51. [PMID: 32188479 PMCID: PMC7081698 DOI: 10.1186/s12951-020-00602-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/05/2020] [Indexed: 12/12/2022] Open
Abstract
The state-of-the-art hernia meshes, used in hospitals for hernia repair, are predominantly polymeric textile-based constructs that present high mechanical strength, but lack antimicrobial properties. Consequently, preventing bacterial colonization of implanted prosthetic meshes is of major clinical relevance for patients undergoing hernia repair. In this study, the co-axial electrospinning technique was investigated for the development of a novel mechanically stable structure incorporating dual drug release antimicrobial action. Core/shell structured nanofibers were developed, consisting of Nylon-6 in the core, to provide the appropriate mechanical stability, and Chitosan/Polyethylene oxide in the shell to provide bacteriostatic action. The core/shell structure consisted of a binary antimicrobial system incorporating 5-chloro-8-quinolinol in the chitosan shell, with the sustained release of Poly(hexanide) from the Nylon-6 core of the fibers. Homogeneous nanofibers with a "beads-in-fiber" architecture were observed by TEM, and validated by FTIR and XPS. The composite nanofibrous meshes significantly advance the stress-strain responses in comparison to the counterpart single-polymer electrospun meshes. The antimicrobial effectiveness was evaluated in vitro against two of the most commonly occurring pathogenic bacteria; S. aureus and P. aeruginosa, in surgical site infections. This study illustrates how the tailoring of core/shell nanofibers can be of interest for the development of active antimicrobial surfaces.
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Affiliation(s)
- Antonios Keirouz
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, UK
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, Robert Stevenson Road, Edinburgh, EH9 3FB, UK
| | - Qun Ren
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Alex Dommann
- Center for X-Ray Analytics, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600, Dübendorf, Switzerland
| | - Guido Beldi
- Department of Visceral Surgery and Medicine, Visceral Surgery, Inselspital University Hospital Bern and University Bern, Freiburgstrasse 18, CH-3010, Bern, Switzerland
| | - Katharina Maniura-Weber
- Laboratory for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - René M Rossi
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland
| | - Giuseppino Fortunato
- Laboratory for Biomimetic Membranes and Textiles, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014, St. Gallen, Switzerland.
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34
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Keirouz A, Chung M, Kwon J, Fortunato G, Radacsi N. 2D and 3D electrospinning technologies for the fabrication of nanofibrous scaffolds for skin tissue engineering: A review. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2020; 12:e1626. [DOI: 10.1002/wnan.1626] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Antonios Keirouz
- School of Engineering, Institute for Materials and Processes The University of Edinburgh Edinburgh UK
- Empa, Swiss Federal Laboratories for Materials Science and Technology Laboratory for Biomimetic Membranes and Textiles St. Gallen Switzerland
| | - Michael Chung
- School of Engineering, Institute for Materials and Processes The University of Edinburgh Edinburgh UK
- Empa, Swiss Federal Laboratories for Materials Science and Technology Laboratory for Biomimetic Membranes and Textiles St. Gallen Switzerland
| | - Jaehoon Kwon
- School of Engineering, Institute for Materials and Processes The University of Edinburgh Edinburgh UK
| | - Giuseppino Fortunato
- Empa, Swiss Federal Laboratories for Materials Science and Technology Laboratory for Biomimetic Membranes and Textiles St. Gallen Switzerland
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes The University of Edinburgh Edinburgh UK
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