1
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Ao F, Yin C, Luo X, Shen W, Ge X, Zheng Y. Controlled dual drug delivery system based on gelatin electrospinning membranes for wound healing promotion. Int J Biol Macromol 2025; 289:138720. [PMID: 39694389 DOI: 10.1016/j.ijbiomac.2024.138720] [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: 10/01/2024] [Revised: 12/09/2024] [Accepted: 12/10/2024] [Indexed: 12/20/2024]
Abstract
Skin wound repair is a complex dynamic process. Current dual-drug delivery systems struggle to adapt to the process of wound healing. Therefore, the construction of a dual-drug delivery system with intelligent responsiveness, controllable release, and understanding the repair mechanisms, is a current research challenge. This study described the design of a new gelatin-based dual-drug delivery system (PGDMD) using electric field stimulation to achieve a controlled drug release. In vitro drug release experiments demonstrated PGDMD completed the transition from a fiber membrane state to a gel state during the release process. Quercetin released with a rapid release within the first 60 min and amikacin released over 24 h. The amount of drug released in the same release time was increased mainly through electrostatic action under the effect of the electric field and accelerated the movement of drug molecules. The non-targeted metabolomics analysis revealed that PGDMD mainly reduced inflammation and oxidative stress responses by upregulating the expression of antioxidant-related metabolites, thereby improving the therapeutic effect of rat traumatic skin. In conclusion, the dual-drug delivery system might be potentially applied to high-performance medical devices, pharmaceuticals and other industry products, and provides research ideas and reference for exploring the interaction between biomaterials and the organism.
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Affiliation(s)
- Fen Ao
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science &Technology, Xi'an 710021, PR China.
| | - Changyu Yin
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science &Technology, Xi'an 710021, PR China
| | - Xiaomin Luo
- College of Bioresources Chemical and Materials Engineering, Institute of Biomass & Functional Materials, Shaanxi University of Science &Technology, Xi'an 710021, PR China.
| | - Wen Shen
- School of Food Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
| | - Xuemei Ge
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, 210037, PR China
| | - Yan Zheng
- School of Food Science and Engineering, Shaanxi University of Science & Technology, Xi'an 710021, PR China
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2
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Hernández-Sánchez F, Rodríguez-Fuentes N, Sánchez-Pech JC, Ávila-Ortega A, Carrillo-Escalante HJ, Talavera-Pech WA, Martín-Pat GE. Comparative study of iodine-doped and undoped pyrrole grafting with plasma on poly (glycerol sebacate) scaffolds and its human dental pulp stem cells compatibility. J Biomater Appl 2024; 39:207-220. [PMID: 38820599 DOI: 10.1177/08853282241258304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2024]
Abstract
This study addresses the morphological and chemical characterization of PGS scaffolds after (6, 12, 18, 24, and 30 min) residence in undoped pyrrole plasma (PGS-PPy) and the evaluation of cell viability with human dental pulp stem cells (hDPSCs). The results were compared with a previous study that used iodine-doped pyrrole (PGS-PPy/I). Analyses through SEM and AFM revealed alterations in the topography and quantity of deposited PPy particles. FTIR spectra of PGS-PPy scaffolds confirmed the presence of characteristic absorption peaks of PPy, with higher intensities observed in the nitrile and -C≡C- groups compared to PGS-PPy/I scaffolds, while raman spectra indicated a lower presence of polaron N+ groups. On the other hand, PGS scaffolds modified with PPy exhibited lower cytotoxicity compared to PGS-PPy/I scaffolds, as evidenced by the Live/Dead assay. Furthermore, the PGS-PPy scaffolds at 6 and 12 min, and particularly the PGS-PPy/I scaffold at 6 min, showed the best results in terms of cell viability by the fifth day of culture. The findings of this study suggest that undoped pyrrole plasma modification for short durations could also be a viable option to enhance the interaction with hDPSCs, especially when the treatment times range between 6 min and 12 min.
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Affiliation(s)
| | - Nayeli Rodríguez-Fuentes
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Yucatán, México
- Consejo Nacional de Ciencias y Tecnologías, Cd. de México, México
| | | | | | | | | | - Gaspar Eduardo Martín-Pat
- Unidad de Materiales, Centro de Investigación Científica de Yucatán, Yucatán, México
- Consejo Nacional de Ciencias y Tecnologías, Cd. de México, México
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3
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Wang C, Chen Q, Wang H, Gang H, Zhou Y, Gu S, Zhang R, Xu W, Yang H. Biomechanical Scaffolds of Decellularized Heart Valves Modified by Electrospun Polylactic Acid. Appl Biochem Biotechnol 2024; 196:4256-4272. [PMID: 37922030 DOI: 10.1007/s12010-023-04756-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2023] [Indexed: 11/05/2023]
Abstract
Enhancing the mechanical properties and cytocompatibility of decellularized heart valves is the key to promote the application of biological heart valves. In order to further improve the mechanical properties, the electrospinning and non-woven processing methods are combined to prepare the polylactic acid (PLA)/decellularized heart valve nanofiber-reinforced sandwich structure electrospun scaffold. The effect of electrospinning time on the performance of decellularized heart valve is investigated from the aspects of morphology, mechanical properties, softness, and biocompatibility of decellularized heart valve. Results of the mechanical tests show that compared with the pure decellularized heart valve, the mechanical properties of the composite heart valve were significantly improved with the tensile strength increasing by 108% and tensile strain increased by 571% when the electrospinning time exceeded 2 h. In addition, with this electrospinning time, the composite heart valve has a certain promoting effect on the human umbilical vein endothelial cells proliferation behavior. This work provides a promising foundation for tissue heart valve reendothelialization to lay the groundwork for organoid.
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Affiliation(s)
- Chaorong Wang
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China
| | - Qingqing Chen
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China
| | - Han Wang
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China
- Institute for Frontier Materials, Deakin University, Geelong, Victoria, 3216, Australia
| | - Hanlin Gang
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China
| | - Yingshan Zhou
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China
| | - Shaojin Gu
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China
| | - Ruoyun Zhang
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China.
| | - Weilin Xu
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China
| | - Hongjun Yang
- College of Materials Science and Engineering, Wuhan Textile University, No.1 Yangguang Road, Wuhan, 430200, Hubei Province, China.
- State Key Laboratory of New Textile Materials and Advanced Processing Technologies, Wuhan Textile University, Wuhan, 430200, China.
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4
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Ramasubbu K, Venkatraman G, Ramanathan G, Dhanasekar S, Rajeswari VD. Molecular and cellular signalling pathways for promoting neural tissue growth - A tissue engineering approach. Life Sci 2024; 346:122640. [PMID: 38614302 DOI: 10.1016/j.lfs.2024.122640] [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: 02/08/2024] [Revised: 03/18/2024] [Accepted: 04/10/2024] [Indexed: 04/15/2024]
Abstract
Neural tissue engineering is a sub-field of tissue engineering that develops neural tissue. Damaged central and peripheral nervous tissue can be fabricated with a suitable scaffold printed with biomaterials. These scaffolds promote cell growth, development, and migration, yet they vary according to the biomaterial and scaffold printing technique, which determine the physical and biochemical properties. The physical and biochemical properties of scaffolds stimulate diverse signalling pathways, such as Wnt, NOTCH, Hedgehog, and ion channels- mediated pathways to promote neuron migration, elongation and migration. However, neurotransmitters like dopamine, acetylcholine, gamma amino butyric acid, and other signalling molecules are critical in neural tissue engineering to tissue fabrication. Thus, this review focuses on neural tissue regeneration with a tissue engineering approach highlighting the signalling pathways. Further, it explores the interaction of the scaffolds with the signalling pathways for generating neural tissue.
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Affiliation(s)
- Kanagavalli Ramasubbu
- Department of Bio-Medical Sciences, School of Biosciences and Technology, Vellore Institute of Technology-, Vellore 632 014, Tamil Nadu, India
| | - Ganesh Venkatraman
- Department of Bio-Medical Sciences, School of Biosciences and Technology, Vellore Institute of Technology-, Vellore 632 014, Tamil Nadu, India
| | - Ganasambanthan Ramanathan
- Department of Bio-Medical Sciences, School of Biosciences and Technology, Vellore Institute of Technology-, Vellore 632 014, Tamil Nadu, India
| | - Sivaraman Dhanasekar
- Department of Biotechnology, Pandit Deendayal Energy University, Gandhinagar 382007, Gujarat, India
| | - V Devi Rajeswari
- Department of Bio-Medical Sciences, School of Biosciences and Technology, Vellore Institute of Technology-, Vellore 632 014, Tamil Nadu, India.
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5
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Maleki M, Karimi-Soflou R, Karkhaneh A. Raspberry-like PLA/PGS biodegradable microparticles with urethane linkages: Unlocking tailored release of magnesium ions and oxygen for bone tissue engineering. Int J Pharm 2024; 651:123760. [PMID: 38163525 DOI: 10.1016/j.ijpharm.2023.123760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/28/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
Designing biodegradable microparticles with finely controlled release properties for tissue engineering systems remains a significant scientific challenge. This study introduces a novel approach by fabricating urethane-linked PLA/PGS microparticles loaded with magnesium peroxide. The microparticles offer potential applications in bone tissue engineering due to their ability to provide a controlled release of oxygen and magnesium ions while maintaining physiological pH. The PGS pre-polymer was synthesized via polycondensation and characterized using FTIR, 1H NMR, and GPC. Microparticle morphology transformed from smooth to raspberry-like upon incorporation of PGS, as observed by SEM. Microparticle size was tuned by varying PGS and PLA concentrations. FTIR analysis confirmed the successful formation of urethane links within the microparticles. MgO2-loaded PLA/PGS microparticles exhibited sustained release of dissolved oxygen and magnesium ions for 21 days while maintaining physiological pH better than PLA microparticles. Cell viability assays confirmed microparticle cytocompatibility, and ALP and Alizarin red assays demonstrated their ability to induce osteogenic differentiation. These findings highlight the potential of pH-controlled MgO2-loaded microparticles as an effective system for bone tissue engineering. In conclusion, this study presents a novel approach to designing biodegradable microparticles with adjustable release properties for bone tissue engineering. The urethane-based MgO2-loaded microparticles provide controlled release of oxygen and magnesium ions and regulate the environment's pH, making them a promising system for bone tissue engineering applications.
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Affiliation(s)
- Mina Maleki
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Reza Karimi-Soflou
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Akbar Karkhaneh
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran.
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6
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Dolatyar B, Zeynali B, Shabani I, Parvaneh Tafreshi A. High-efficient serum-free differentiation of trabecular meshwork mesenchymal stem cells into Schwann-like cells on polylactide electrospun nanofibrous scaffolds. Neurosci Lett 2023; 813:137417. [PMID: 37549866 DOI: 10.1016/j.neulet.2023.137417] [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: 05/06/2023] [Revised: 07/14/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
Cell-based therapies of the peripheral nerve injury (PNI) have provided satisfactory outcomes among which Schwann cells (SCs) are the most reliable candidate to improve repair of the damaged nerve, however, it is difficult to obtain sufficient amount of SCs for clinical applications. Trabecular meshwork-derived mesenchymal stem cells (TM-MSCs) are newly introduced neural crest originated MSCs, which may have a desirable potential for Schwann-like differentiation due to their common lineage. On the other hand, one of the challenges of cell-based therapies is usage of serum containing media which is inappropriate for clinical applications. In the present study, we investigated the differentiation potential of TM-MSCs into Schwann-like cells on polylactide (PLA) nanofibrous scaffolds in the presence or absence of serum. Our results revealed that PLA nanofibers had no negative effects on the cell growth and proliferation of TM-MSCs, and improved Schwann-like differentiation compared with tissue culture plates (TCPs). More importantly, when the cells cultured on the scaffold in the presence of serum-free media (SFM), expression mRNA levels of SC markers (S100B, GAP43, GFAP and SOX10) were significantly increased compared with those of serum-rich groups. Immunostaining of TM-MSCs cultured on serum-free PLA nanofibrous scaffolds also showed significant expression of GAP43, GFAP and SOX10 compared to those of control, indicating the efficient role of SFM in the differentiation of TM-MSCs into SCs lineage. Overall, the findings of this study revealed the differentiation potential of TM-MSCs to SC fate for the first time, and also showed the beneficial effects of SFM and PLA nanofibrous scaffolds as a promising approach for peripheral nerve regeneration.
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Affiliation(s)
- Banafsheh Dolatyar
- Developmental Biology Lab, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Bahman Zeynali
- Developmental Biology Lab, School of Biology, College of Science, University of Tehran, Tehran, Iran.
| | - Iman Shabani
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Azita Parvaneh Tafreshi
- Department of Molecular Medicine, Faculty of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
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7
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Filatova K, Domincova Bergerova E, Kazantseva N, Masar M, Suly P, Sopik T, Cisar J, Durpekova S, Sedlarik V. Design and Fabrication of Electrospun PLA-Based Silica-Modified Composite Nanofibers with Antibacterial Properties for Perspective Wound Treatment. Polymers (Basel) 2023; 15:3500. [PMID: 37688125 PMCID: PMC10490196 DOI: 10.3390/polym15173500] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/17/2023] [Accepted: 08/19/2023] [Indexed: 09/10/2023] Open
Abstract
The aim of this study was to develop a novel amikacin (AMI) delivery system with prolonged release based on composite electrospun nanofibers of PLA supplemented with AMI-loaded Si nanoparticles of different morphology. The resultant materials were characterized in terms of their physical properties (scanning electron microscopy, Brunauer-Emmett-Teller analysis, thermogravimetric analysis, water contact angle). High-Performance Liquid Chromatography was used to determine the AMI content in the liquid fractions obtained from the release study. The results show that nanofibers of fumed silica exhibited an aggregated, highly porous structure, whereas nanofibers of mesoporous silica had a spherical morphology. Both silica nanoparticles had a significant effect on the hydrophilic properties of PLA nanofiber surfaces. The liquid fractions were investigated to gauge the encapsulation efficiency (EE) and loading efficiency (LE) of AMI, demonstrating 66% EE and 52% LE for nanofibers of fumed silica compared to nanofibers of mesoporous silica nanoparticles (52% EE and 12.7% LE). The antibacterial activity of the AMI-loaded nanofibers was determined by the Kirby-Bauer Method. These results demonstrated that the PLA-based silica nanofibers effectively enhanced the antibacterial properties against the Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae.
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Affiliation(s)
- Kateryna Filatova
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
- Faculty of Technology, Tomas Bata University in Zlin, Vavreckova 5669, 76001 Zlin, Czech Republic
| | - Eva Domincova Bergerova
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Natalia Kazantseva
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Milan Masar
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Pavol Suly
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Tomas Sopik
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Jaroslav Cisar
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Silvie Durpekova
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
| | - Vladimir Sedlarik
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Tr. T. Bati 5678, 76001 Zlin, Czech Republic
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Semenycheva L, Chasova VO, Pegeev NL, Uromicheva MA, Mitin AV, Kuznetsova YL, Farafontova EA, Rubtsova YP, Linkova DD, Egorikhina MN. Production of Graft Copolymers of Cod Collagen with Butyl Acrylate and Vinyl Butyl Ether in the Presence of Triethylborane-Prospects for Use in Regenerative Medicine. Polymers (Basel) 2023; 15:3159. [PMID: 37571053 PMCID: PMC10421105 DOI: 10.3390/polym15153159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/19/2023] [Accepted: 07/20/2023] [Indexed: 08/13/2023] Open
Abstract
Collagen is a suitable material for regenerative medicine because it is characterized by its good biocompatibility. However, due to its fibrillar structure, it cannot organize itself into three-dimensional porous structures without additional modification. The introduction of synthetic monomer elements into the collagen macromolecules is a technique used to form three-dimensional, collagen-based, branched, and crosslinked structures. New types of graft copolymers made from cod collagen with a butyl acrylate and vinyl butyl ether copolymer in aqueous dispersion were obtained in the presence of triethylborane by a radical mechanism. The process of graft copolymer formation proceeded as usual by radical initiation, through radicals formed during triethylborane oxidation by oxygen residues, collagen borination, and reversible inhibition with the participation of a boroxyl radical. The characteristics of the graft copolymers were determined using methods of physical and chemical analysis (GPC, SEM, IR spectroscopy, etc.), while the cytotoxicity was assessed using the MTT assay method. It is shown that the grafting of alternating blocks of butyl acrylate and vinyl butyl ether to the protein macromolecules results in changes in the morphological pattern of the graft co-polymer in comparison with native collagen. This is manifested in the development of consolidations around the collagen fibers of the structural matrices, with the co-polymer cellular structure consisting of interpenetrating pores of unequal size. Additionally, it is important that the graft co-polymer solutions are not toxic at a certain concentration. The above properties confirm the promising nature of the technique's application as the basis for producing new materials for regenerative medicine.
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Affiliation(s)
- Lyudmila Semenycheva
- Faculty of Chemistry, National Research Lobachevsky State University of Nizhny Novgorod, 23, Gagarin Ave., 603022 Nizhny Novgorod, Russia; (V.O.C.); (N.L.P.); (M.A.U.); (A.V.M.); (Y.L.K.)
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
| | - Victoria O. Chasova
- Faculty of Chemistry, National Research Lobachevsky State University of Nizhny Novgorod, 23, Gagarin Ave., 603022 Nizhny Novgorod, Russia; (V.O.C.); (N.L.P.); (M.A.U.); (A.V.M.); (Y.L.K.)
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
| | - Nikita L. Pegeev
- Faculty of Chemistry, National Research Lobachevsky State University of Nizhny Novgorod, 23, Gagarin Ave., 603022 Nizhny Novgorod, Russia; (V.O.C.); (N.L.P.); (M.A.U.); (A.V.M.); (Y.L.K.)
| | - Marina A. Uromicheva
- Faculty of Chemistry, National Research Lobachevsky State University of Nizhny Novgorod, 23, Gagarin Ave., 603022 Nizhny Novgorod, Russia; (V.O.C.); (N.L.P.); (M.A.U.); (A.V.M.); (Y.L.K.)
| | - Alexander V. Mitin
- Faculty of Chemistry, National Research Lobachevsky State University of Nizhny Novgorod, 23, Gagarin Ave., 603022 Nizhny Novgorod, Russia; (V.O.C.); (N.L.P.); (M.A.U.); (A.V.M.); (Y.L.K.)
| | - Yulia L. Kuznetsova
- Faculty of Chemistry, National Research Lobachevsky State University of Nizhny Novgorod, 23, Gagarin Ave., 603022 Nizhny Novgorod, Russia; (V.O.C.); (N.L.P.); (M.A.U.); (A.V.M.); (Y.L.K.)
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
| | - Ekaterina A. Farafontova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
| | - Yulia P. Rubtsova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
| | - Daria D. Linkova
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
| | - Marfa N. Egorikhina
- Federal State Budgetary Educational Institution of Higher Education, Privolzhsky Research Medical University of the Ministry of Health of the Russian Federation, 603005 Nizhny Novgorod, Russia; (E.A.F.); (Y.P.R.); (D.D.L.); (M.N.E.)
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Sun Z, Zhu D, Zhao H, Liu J, He P, Luan X, Hu H, Zhang X, Wei G, Xi Y. Recent advance in bioactive hydrogels for repairing spinal cord injury: material design, biofunctional regulation, and applications. J Nanobiotechnology 2023; 21:238. [PMID: 37488557 PMCID: PMC10364437 DOI: 10.1186/s12951-023-01996-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/10/2023] [Indexed: 07/26/2023] Open
Abstract
Functional hydrogels show potential application in repairing spinal cord injury (SCI) due to their unique chemical, physical, and biological properties and functions. In this comprehensive review, we present recent advance in the material design, functional regulation, and SCI repair applications of bioactive hydrogels. Different from previously released reviews on hydrogels and three-dimensional scaffolds for the SCI repair, this work focuses on the strategies for material design and biologically functional regulation of hydrogels, specifically aiming to show how these significant efforts can promoting the repairing performance of SCI. We demonstrate various methods and techniques for the fabrication of bioactive hydrogels with the biological components such as DNA, proteins, peptides, biomass polysaccharides, and biopolymers to obtain unique biological properties of hydrogels, including the cell biocompatibility, self-healing, anti-bacterial activity, injectability, bio-adhesion, bio-degradation, and other multi-functions for repairing SCI. The functional regulation of bioactive hydrogels with drugs/growth factors, polymers, nanoparticles, one-dimensional materials, and two-dimensional materials for highly effective treating SCI are introduced and discussed in detail. This work shows new viewpoints and ideas on the design and synthesis of bioactive hydrogels with the state-of-the-art knowledges of materials science and nanotechnology, and will bridge the connection of materials science and biomedicine, and further inspire clinical potential of bioactive hydrogels in biomedical fields.
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Affiliation(s)
- Zhengang Sun
- Department of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266071, People's Republic of China
- Department of Spinal Surgery, Huangdao Central Hospital, Affiliated Hospital of Qingdao University, Qingdao, 266071, China
- The Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, 730030, People's Republic of China
| | - Danzhu Zhu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Hong Zhao
- Department of Spinal Surgery, Huangdao Central Hospital, Affiliated Hospital of Qingdao University, Qingdao, 266071, China
| | - Jia Liu
- Department of Spinal Surgery, Huangdao Central Hospital, Affiliated Hospital of Qingdao University, Qingdao, 266071, China
| | - Peng He
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Xin Luan
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, People's Republic of China
| | - Huiqiang Hu
- Department of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266071, People's Republic of China
| | - Xuanfen Zhang
- The Department of Plastic Surgery, Lanzhou University Second Hospital, Lanzhou, 730030, People's Republic of China.
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, People's Republic of China.
| | - Yongming Xi
- Department of Spinal Surgery, Affiliated Hospital of Qingdao University, Qingdao, 266071, People's Republic of China.
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10
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Jiang L, Ouyang X, Zhang D, Wang G, Zhang Z, Wang W, Yan H. The role of Gel-Ppy-modified nerve conduit on the repair of sciatic nerve defect in rat model. FASEB J 2023; 37:e22921. [PMID: 37052612 DOI: 10.1096/fj.202201969r] [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: 11/24/2022] [Revised: 02/14/2023] [Accepted: 03/30/2023] [Indexed: 04/14/2023]
Abstract
The serious clinical challenge of peripheral nerve injury (PNI) is nerve regeneration. Nerve conduit represents a promising strategy to contribute to nerve regeneration by bridging injured nerve gaps. However, due to a unique microenvironment of nerve tissue, autologous nerves have not been substituted by nerve conduit. Nerve regeneration after nerve conduit implantation depends on many factors, such as conductivity and biocompatibility. Therefore, Gelatin (Gel) with biocompatibility and polypyrrole (Ppy) with conductivity is highly concerned. In this paper, Gel-Ppy modified nerve conduit was fabricated with great biocompatibility and conductivity to evaluate its properties of enhancing nerve regeneration in vivo and in vitro. The proliferation of Schwann cells on Gel-Ppy modified nerve conduit was remarkably increased. Consistent with in vitro results, the Gel-Ppy nerve conduit could contribute to the regeneration of Schwann cell in vivo. The axon diameters and myelin sheath thickness were also enhanced, resulting in the amelioration of muscle atrophy, nerve conduction, and motor function recovery. To explain this interesting phenomenon, western blot results indicated that the Gel-Ppy conduit facilitated nerve regeneration via upregulating the Rap1 pathway to induce neurite outgrowth. Therefore, the above results demonstrated that Gel-Ppy modified nerve conduit could provide an acceptable microenvironment for nerve regeneration and be popularized as a novel therapeutic strategy of PNI.
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Affiliation(s)
- Liangfu Jiang
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics (Division of Wound Repair), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Xingyu Ouyang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Dupiao Zhang
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Gang Wang
- College of Fisheries and Life Science, Shanghai Ocean University, Shanghai, China
| | - Zhe Zhang
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Wei Wang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hede Yan
- Key Laboratory of Orthopedics of Zhejiang Province, Department of Orthopedics (Division of Hand Surgery), The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
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11
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Keirouz A, Mustafa YL, Turner JG, Lay E, Jungwirth U, Marken F, Leese HS. Conductive Polymer-Coated 3D Printed Microneedles: Biocompatible Platforms for Minimally Invasive Biosensing Interfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206301. [PMID: 36596657 DOI: 10.1002/smll.202206301] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 12/13/2022] [Indexed: 06/17/2023]
Abstract
Conductive polymeric microneedle (MN) arrays as biointerface materials show promise for the minimally invasive monitoring of analytes in biodevices and wearables. There is increasing interest in microneedles as electrodes for biosensing, but efforts have been limited to metallic substrates, which lack biological stability and are associated with high manufacturing costs and laborious fabrication methods, which create translational barriers. In this work, additive manufacturing, which provides the user with design flexibility and upscale manufacturing, is employed to fabricate acrylic-based microneedle devices. These microneedle devices are used as platforms to produce intrinsically-conductive, polymer-based surfaces based on polypyrrole (PPy) and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS). These entirely polymer-based solid microneedle arrays act as dry conductive electrodes while omitting the requirement of a metallic seed layer. Two distinct coating methods of 3D-printed solid microneedles, in situ polymerization and drop casting, enable conductive functionality. The microneedle arrays penetrate ex vivo porcine skin grafts without compromising conductivity or microneedle morphology and demonstrate coating durability over multiple penetration cycles. The non-cytotoxic nature of the conductive microneedles is evaluated using human fibroblast cells. The proposed fabrication strategy offers a compelling approach to manufacturing polymer-based conductive microneedle surfaces that can be further exploited as platforms for biosensing.
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Affiliation(s)
- Antonios Keirouz
- Materials for Health Lab, Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK
| | - Yasemin L Mustafa
- Materials for Health Lab, Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK
| | - Joseph G Turner
- Materials for Health Lab, Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK
| | - Emily Lay
- Department of Life Sciences, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK
| | - Ute Jungwirth
- Department of Life Sciences, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK
| | - Frank Marken
- Department of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, UK
| | - Hannah S Leese
- Materials for Health Lab, Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
- Centre for Biosensors, Bioelectronics and Biodevices (C3Bio), University of Bath, Bath, BA2 7AY, UK
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12
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Karimi-Soflou R, Shabani I, Karkhaneh A. Enhanced neural differentiation by applying electrical stimulation utilizing conductive and antioxidant alginate-polypyrrole/poly-l-lysine hydrogels. Int J Biol Macromol 2023; 237:124063. [PMID: 36933596 DOI: 10.1016/j.ijbiomac.2023.124063] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/22/2023] [Accepted: 03/13/2023] [Indexed: 03/18/2023]
Abstract
The challenge of restoration from neurodegenerative disorder requires effective solutions. To enhance the healing efficiencies, scaffolds with antioxidant activities, electroconductivity, and versatile features to encourage neuronal differentiation are potentially useful. Herein, polypyrrole-alginate (Alg-PPy) copolymer was used to design antioxidant and electroconductive hydrogels through the chemical oxidation radical polymerization method. The hydrogels have antioxidant effects to combat oxidative stress in nerve damage thanks to the introduction of PPy. Additionally, poly-l-lysine (PLL) provided these hydrogels with a great differentiation ability of stem cells. The morphology, porosity, swelling ratio, antioxidant activity, rheological behavior, and conductive characteristics of these hydrogels were precisely adjusted by altering the amount of PPy. Characterization of hydrogels showed appropriate electrical conductivity and antioxidant activity for neural tissue applications. Cytocompatibility, live/dead assays, and Annexin V/PI staining by flow cytometry using P19 cells confirmed the excellent cytocompatibility and cell protective effect under ROS microenvironment of these hydrogels in both normal and oxidative conditions. The neural marker investigation in the induction of electrical impulses was assessed through RT-PCR and immunofluorescence assay, demonstrating the differentiation of P19 cells to neurons cultured in these scaffolds. In summary, the antioxidant and electroconductive Alg-PPy/PLL hydrogels demonstrated excellent potential as promising scaffolds for treating neurodegenerative disorders.
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Affiliation(s)
- Reza Karimi-Soflou
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran
| | - Iman Shabani
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran.
| | - Akbar Karkhaneh
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Iran.
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13
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Shabani Samghabadi M, Karkhaneh A, Katbab AA. Synthesis and characterization of biphasic layered structure composite with simultaneous electroconductive and piezoelectric behavior as a scaffold for bone tissue engineering. POLYM ADVAN TECHNOL 2023. [DOI: 10.1002/pat.5976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Mina Shabani Samghabadi
- Department of Biomedical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Akbar Karkhaneh
- Department of Biomedical Engineering Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
| | - Ali Asghar Katbab
- Department of Polymer Engineering and Color Technology Amirkabir University of Technology (Tehran Polytechnic) Tehran Iran
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14
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Polyurethane/Liquid Crystal Microfibers with pDNA Polyplex Loadings for the Optimal Release and Promotion of HUVEC Proliferation. Pharmaceutics 2022; 14:pharmaceutics14112489. [PMID: 36432685 PMCID: PMC9697111 DOI: 10.3390/pharmaceutics14112489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022] Open
Abstract
Fiber structures with connected pores resemble the natural extracellular matrix (ECM) in tissues, and show high potential for promoting the formation of natural functional tissue. The geometry of composite fibers produced by electrospinning is similar to that of the living-tissue ECM, in terms of structural complexity. The introduction of liquid crystals does not affect the morphology of fibers. The composite mat shows better hydrophilicity, with higher content of liquid crystal. At the same time, the higher the content of liquid crystal, the lower the modulus and tensile strength, and the higher the breaking energy and the elongation at break. Additionally, the factors affecting fibers are also investigated in this study. The addition of liquid crystals to the fibers' matrix can slow down the release of pDNA, which is the most common vehicle for genetic engineering, and the encapsulation of pDNA polymer into the fiber matrix can maintain biological activity. The continued release of the pDNA complex was achieved in this study through liquid crystals, and the effective release is controllable. In addition, the integration of liquid crystals into fibers with pDNA polymers can cause a faster transfection rate and promote HUVEC (Human Umbilical Vein Endothelial Cells) growth. It is possible to combine electrospun fibers containing LC (liquid crystal) with pDNA condensation technology to achieve the goal of a sustained release. The production of inductable tissue-building equipment can manipulate the required signals at an effective level in the local tissue microenvironment.
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15
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Kovaleva PA, Pariy IO, Chernozem RV, Yu. Zadorozhnyy M, Permyakova ES, Kolesnikov EA, Surmeneva MA, Surmenev RA, Senatov FS. Shape memory effect in hybrid polylactide-based polymer scaffolds functionalized with reduced graphene oxide for tissue engineering. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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16
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Trueman RP, Ahlawat AS, Phillips JB. A Shock to the (Nervous) System: Bioelectricity Within Peripheral Nerve Tissue Engineering. TISSUE ENGINEERING. PART B, REVIEWS 2022; 28:1137-1150. [PMID: 34806913 DOI: 10.1089/ten.teb.2021.0159] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The peripheral nervous system has the remarkable ability to regenerate in response to injury. However, this is only successful over shorter nerve gaps and often provides poor outcomes for patients. Currently, the gold standard of treatment is the surgical intervention of an autograft, whereby patient tissue is harvested and transplanted to bridge the nerve gap. Despite being the gold standard, more than half of patients have dissatisfactory functional recovery after an autograft. Peripheral nerve tissue engineering aims to create biomaterials that can therapeutically surpass the autograft. Current tissue-engineered constructs are designed to deliver a combination of therapeutic benefits to the regenerating nerve, such as supportive cells, alignment, extracellular matrix, soluble factors, immunosuppressants, and other therapies. An emerging therapeutic opportunity in nerve tissue engineering is the use of electrical stimulation (ES) to modify and enhance cell function. ES has been shown to positively affect four key cell types, such as neurons, endothelial cells, macrophages, and Schwann cells, involved in peripheral nerve repair. Changes elicited include faster neurite extension, cellular alignment, and changes in cell phenotype associated with improved regeneration and functional recovery. This review considers the relevant modes of administration and cellular responses that could underpin incorporation of ES into nerve tissue engineering strategies. Impact Statement Tissue engineering is becoming increasingly complex, with multiple therapeutic modalities often included within the final tissue-engineered construct. Electrical stimulation (ES) is emerging as a viable therapeutic intervention to be included within peripheral nerve tissue engineering strategies; however, to date, there have been no review articles that collate the information regarding the effects of ES on key cell within peripheral nerve injury. This review article aims to inform the field on the different therapeutic effects that may be achieved by using ES and how they may become incorporated into existing strategies.
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Affiliation(s)
- Ryan P Trueman
- Center for Nerve Engineering, Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
- Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
| | - Ananya S Ahlawat
- Center for Nerve Engineering, Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
- Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
| | - James B Phillips
- Center for Nerve Engineering, Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
- Department of Pharmacology, UCL School of Pharmacy, University College London, London, United Kingdom
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17
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Jiffrin R, Razak SIA, Jamaludin MI, Hamzah ASA, Mazian MA, Jaya MAT, Nasrullah MZ, Majrashi M, Theyab A, Aldarmahi AA, Awan Z, Abdel-Daim MM, Azad AK. Electrospun Nanofiber Composites for Drug Delivery: A Review on Current Progresses. Polymers (Basel) 2022; 14:3725. [PMID: 36145871 PMCID: PMC9506405 DOI: 10.3390/polym14183725] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/29/2022] [Accepted: 09/02/2022] [Indexed: 11/16/2022] Open
Abstract
A medication's approximate release profile should be sustained in order to generate the desired therapeutic effect. The drug's release site, duration, and rate must all be adjusted to the drug's therapeutic aim. However, when designing drug delivery systems, this may be a considerable hurdle. Electrospinning is a promising method of creating a nanofibrous membrane since it enables drugs to be placed in the nanofiber composite and released over time. Nanofiber composites designed through electrospinning for drug release purposes are commonly constructed of simple structures. This nanofiber composite produces matrices with nanoscale fiber structure, large surface area to volume ratio, and a high porosity with small pore size. The nanofiber composite's large surface area to volume ratio can aid with cell binding and multiplication, drug loading, and mass transfer processes. The nanofiber composite acts as a container for drugs that can be customized to a wide range of drug release kinetics. Drugs may be electrospun after being dissolved or dispersed in the polymer solution, or they can be physically or chemically bound to the nanofiber surface. The composition and internal structure of the nanofibers are crucial for medicine release patterns.
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Affiliation(s)
- Renatha Jiffrin
- Bioinspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia
| | - Saiful Izwan Abd Razak
- Bioinspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia
- Sports Innovation & Technology Center, Institute of Human Centered Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia
| | - Mohamad Ikhwan Jamaludin
- Bioinspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering, Universiti Teknologi Malaysia, Skudai 81300, Johor, Malaysia
| | - Amir Syahir Amir Hamzah
- Nanobiotechnology Research Group, Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Muadz Ahmad Mazian
- Faculty of Applied Science, Universiti Teknologi MARA, Cawangan Negeri Sembilan, Kampus Kuala Pilah, Kuala Pilah 72000, Negeri Sembilan, Malaysia
| | | | - Mohammed Z. Nasrullah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed Majrashi
- Department of Pharmacology, Faculty of Medicine, University of Jeddah, Jeddah 23881, Saudi Arabia
| | - Abdulrahman Theyab
- Department of Laboratory & Blood Bank, Security Forces Hospital, P.O. Box 14799, Mecca 21955, Saudi Arabia
- College of Medicine, Al-Faisal University, P.O. Box 50927, Riyadh 11533, Saudi Arabia
| | - Ahmed A. Aldarmahi
- Basic Science Department, College of Science and Health Professions, King Saud bin Abdulaziz University for Health Sciences, National Guard-Health Affairs, P.O. Box 9515, Jeddah 21423, Saudi Arabia
| | - Zuhier Awan
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohamed M. Abdel-Daim
- Department of Pharmaceutical Sciences, Pharmacy Program, Batterjee Medical College, P.O. Box 6231, Jeddah 21442, Saudi Arabia
- Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt
| | - Abul Kalam Azad
- Faculty of Pharmacy, MAHSA University, Bandar Saujana Putra, Jenjarom 42610, Selangor, Malaysia
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18
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Chen J, Shi Y, Pan K, Du J, Qiu J. Plasma Oscillation Behavior and Electromagnetic Interference Shielding of Carbon Nanofibers/ Conductive Polymer Metacomposites at Radarwave Frequency. Macromol Rapid Commun 2022; 43:e2100826. [PMID: 35257427 DOI: 10.1002/marc.202100826] [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] [Received: 11/30/2021] [Revised: 01/01/2022] [Indexed: 11/08/2022]
Abstract
Metacomposites have attracted widespread attention due to their unique negative electromagnetic properties and stupendous applications. Although there are systems that realize metamaterial properties in low radio frequency bands, the research on the construction of polymer matrix metacomposites with negative performance in the pivotal GHz band is still uncovered. Herein, the carbon nanofiber/conductive polymer metacomposites with three-dimensional overlapping network structures are innovatively constructed to achieve negative permittivity characteristics in the radarwave frequency range, and convenient methods for further adjusting the electromagnetic parameters is also proposed. The results show that the negative permittivity of CNFs/PANI metacomposites can be conveniently altered via adjusting PANI content. Furthermore, electromagnetic shielding has also been fully discussed as one of the most valuable applications of the metacomposites. The SET of CNFs/PANI-70 has an average value of 70 dB at 4-18 GHz and can reach a maximum of 80 dB at 4 GHz, which far exceeds the current commercial electromagnetic shielding standards. This work greatly broadens the promising application of metacomposites for perfect electromagnetic shielding, novel capacitance, and frequency selective surfaces. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Jiali Chen
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Yunan Shi
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Kaichao Pan
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China
| | - Jiang Du
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China.,Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Education of Ministry, Shanghai, 201804, PR China
| | - Jun Qiu
- School of Materials Science and Engineering, Tongji University, Shanghai, 201804, PR China.,Key Laboratory of Advanced Civil Engineering Materials (Tongji University), Education of Ministry, Shanghai, 201804, PR China
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19
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Lategan M, Kumar P, Choonara YE. Functionalizing nanofibrous platforms for neural tissue engineering applications. Drug Discov Today 2022; 27:1381-1403. [DOI: 10.1016/j.drudis.2022.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/29/2021] [Accepted: 01/12/2022] [Indexed: 12/23/2022]
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20
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Memarian P, Solouk A, Bagher Z, Akbari S, Nazarpak MH. Ionic conductive nanocomposite based on poly( l-lactic acid)/poly(amidoamine) dendrimerelectrospun nanofibrous for biomedical application. Biomed Mater 2021; 17. [PMID: 34731842 DOI: 10.1088/1748-605x/ac361d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Accepted: 11/03/2021] [Indexed: 10/19/2022]
Abstract
The modification of poly (l-lactic acid) (PLLA) electrospun nanofibrous scaffolds was carried out by blending with second-generation poly amidoamine (PAMAM) for enhancement of their ionic conductivity. The samples containing PLLA and various amounts of PAMAM (1%, 3%, 5%, and 7% by wt.) were fabricated by electrospinning techniques. The electrospun fibers were characterized using scanning electron microscopy (SEM), porosity, Fourier-transform infrared (FTIR) spectroscopy, differential scanning calorimetry, contact angle measurement, water uptake measurement, mechanical properties, and electrical properties. Furthermore,in vitrodegradation study and cell viability assay were investigated in biomaterial applications. Creating amide groups through aminolysis reaction was confirmed by FTIR analysis successfully. The results reveal that adding PAMAM caused an increase in fiber diameter, crystallinity percentage, hydrophilicity, water absorption, elongation-at-break, and OE-mesenchymal stem cell viability. It is worth mentioning that this is the first report investigating the conductivity of PLLA/PAMAM nanofiber. The results revealed that by increasing the amount of PAMAM, the ionic conductivity of scaffolds was enhanced by about nine times. Moreover, the outcomes indicated that the presence of PAMAM could improve the limitations of PLLA like hydrophobicity, lack of active group, and poor cell adhesion.
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Affiliation(s)
- Paniz Memarian
- ENT and Head & Neck Research Center and Department, The Five Senses Health Institute, Tehran, Iran
| | - Atefeh Solouk
- ENT and Head & Neck Research Center and Department, The Five Senses Health Institute, Tehran, Iran
| | - Zohreh Bagher
- Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine,, Iran University of Medical Sciences, Tehran, Iran
| | - Somaye Akbari
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
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21
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Pyrrole Plasma Polymer-Coated Electrospun Scaffolds for Neural Tissue Engineering. Polymers (Basel) 2021; 13:polym13223876. [PMID: 34833176 PMCID: PMC8621862 DOI: 10.3390/polym13223876] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 01/17/2023] Open
Abstract
Promising strategies for neural tissue engineering are based on the use of three-dimensional substrates for cell anchorage and tissue development. In this work, fibrillar scaffolds composed of electrospun randomly- and aligned-oriented fibers coated with plasma synthesized pyrrole polymer, doped and undoped with iodine, were fabricated and characterized. Infrared spectroscopy, thermogravimetric analysis, and X-ray diffraction analysis revealed the functional groups and molecular integration of each scaffold, as well as the effect of plasma polymer synthesis on crystallinity. Scanning microscopy imaging demonstrated the porous fibrillar micrometric structure of the scaffolds, which afforded adhesion, infiltration, and survival for the neural cells. Orientation analysis of electron microscope images confirmed the elongation of neurite-like cell structures elicited by undoped plasma pyrrole polymer-coated aligned scaffolds, without any biochemical stimuli. The MTT colorimetric assay validated the biocompatibility of the fabricated composite materials, and further evidenced plasma pyrrole polymer-coated aligned scaffolds as permissive substrates for the support of neural cells. These results suggest plasma synthesized pyrrole polymer-coated aligned scaffolds are promising materials for tissue engineering applications.
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22
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Behtouei E, Zandi M, Askari F, Daemi H, Zamanlui S, Arabsorkhi‐Mishabi A, Pezeshki‐Modaress M. Bead‐free and tough electrospun
PCL
/gelatin/
PGS
ternary nanofibrous scaffolds for tissue engineering application. J Appl Polym Sci 2021. [DOI: 10.1002/app.51471] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Ebrahim Behtouei
- Department of Biomaterials Iran Polymer and Petrochemical Institute Tehran Iran
| | - Mojgan Zandi
- Department of Biomaterials Iran Polymer and Petrochemical Institute Tehran Iran
| | - Fahimeh Askari
- Department of Polymer Science Iran Polymer and Petrochemical Institute Tehran Iran
| | - Hamed Daemi
- Department of Cell Engineering, Stem Cells and Developmental Biology, Cell Science Research Center ACECR, Royan Institute Tehran Iran
| | - Soheila Zamanlui
- Stem Cell and Cell Therapy Research Center, Tissue Engineering and Regenerative Medicine Institute, Tehran, Central Branch Islamic Azad University Tehran Iran
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