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Mohammadi MA, Alizadeh AM, Mousavi M, Hashempour-Baltork F, Kooki S, Shadan MR, Hosseini SM, McClements DJ. Advances and applications of crosslinked electrospun biomacromolecular nanofibers. Int J Biol Macromol 2024; 271:132743. [PMID: 38821308 DOI: 10.1016/j.ijbiomac.2024.132743] [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: 03/29/2024] [Revised: 05/24/2024] [Accepted: 05/27/2024] [Indexed: 06/02/2024]
Abstract
Electrospinning is a technology for fabricating ultrafine fibers from natural or synthetic polymers that have novel or enhanced functional properties. These fibers have found applications in a diverse range of fields, including the food, medicine, cosmetics, agriculture, and chemical industries. However, the tendency for electrospun nanofibers to dissociate when exposed to certain environmental conditions limits many of their practical applications. The structural integrity and functional attributes of these nanofibers can be improved using physical and/or chemical crosslinking methods. This review article discusses the formation of polymeric nanofibers using electrospinning and then describes how different crosslinking methods can be used to enhance their mechanical, thermal, and biological attributes. Methods for optimizing the crosslinking reactions are discussed, including proper selection of crosslinker type and reaction conditions. Then, food, medical, and separation applications of crosslinked electrospun fibers are assessed, including in bone and skin tissue engineering, wound healing, drug delivery, air filtration, water filtration, oil removal, food packaging, food preservation, and bioactive delivery. Finally, areas where future research are needed are highlighted, as well as possible future applications of crosslinked nanofibers.
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Affiliation(s)
- Masoud Aman Mohammadi
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Science and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Adel Mirza Alizadeh
- Department of Food Safety and Hygiene, School of Public Health, Zanjan University of Medical Sciences, Zanjan, Iran.
| | - Malihe Mousavi
- Department of Nutrition, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Fataneh Hashempour-Baltork
- Halal Research Center of IRI, Iran Food and Drug Administration, Ministry of Health and Medical Education, Tehran, Iran.
| | - Safa Kooki
- Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Mohammad Reza Shadan
- Clinical Immunology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Seyede Marzieh Hosseini
- Department of Food Technology, Faculty of Nutrition Science and Food Technology, Nutritional, and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Ganesh SS, Anushikaa R, Swetha Victoria VS, Lavanya K, Shanmugavadivu A, Selvamurugan N. Recent Advancements in Electrospun Chitin and Chitosan Nanofibers for Bone Tissue Engineering Applications. J Funct Biomater 2023; 14:jfb14050288. [PMID: 37233398 DOI: 10.3390/jfb14050288] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/07/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
Treatment of large segmental bone loss caused by fractures, osteomyelitis, and non-union results in expenses of around USD 300,000 per case. Moreover, the worst-case scenario results in amputation in 10% to 14.5% of cases. Biomaterials, cells, and regulatory elements are employed in bone tissue engineering (BTE) to create biosynthetic bone grafts with effective functionalization that can aid in the restoration of such fractured bones, preventing amputation and alleviating expenses. Chitin (CT) and chitosan (CS) are two of the most prevalent natural biopolymers utilized in the fields of biomaterials and BTE. To offer the structural and biochemical cues for augmenting bone formation, CT and CS can be employed alone or in combination with other biomaterials in the form of nanofibers (NFs). When compared with several fabrication methods available to produce scaffolds, electrospinning is regarded as superior since it enables the development of nanostructured scaffolds utilizing biopolymers. Electrospun nanofibers (ENFs) offer unique characteristics, including morphological resemblance to the extracellular matrix, high surface-area-to-volume ratio, permeability, porosity, and stability. This review elaborates on the recent strategies employed utilizing CT and CS ENFs and their biocomposites in BTE. We also summarize their implementation in supporting and delivering an osteogenic response to treat critical bone defects and their perspectives on rejuvenation. The CT- and CS-based ENF composite biomaterials show promise as potential constructions for bone tissue creation.
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Affiliation(s)
- S Shree Ganesh
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Ramprasad Anushikaa
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Venkadesan Sri Swetha Victoria
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Krishnaraj Lavanya
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Abinaya Shanmugavadivu
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India
| | - Nagarajan Selvamurugan
- Department of Biotechnology, School of Bioengineering, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur 603203, India
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Park Y, Jin S, Noda I, Jung YM. Continuing progress in the field of two-dimensional correlation spectroscopy (2D-COS): Part III. Versatile applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 284:121636. [PMID: 36229084 DOI: 10.1016/j.saa.2022.121636] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/30/2022] [Accepted: 07/12/2022] [Indexed: 06/16/2023]
Abstract
In this review, the comprehensive summary of two-dimensional correlation spectroscopy (2D-COS) for the last two years is covered. The remarkable applications of 2D-COS in diverse fields using many types of probes and perturbations for the last two years are highlighted. IR spectroscopy is still the most popular probe in 2D-COS during the last two years. Applications in fluorescence and Raman spectroscopy are also very popularly used. In the external perturbations applied in 2D-COS, variations in concentration, pH, and relative compositions are dramatically increased during the last two years. Temperature is still the most used effect, but it is slightly decreased compared to two years ago. 2D-COS has been applied to diverse systems, such as environments, natural products, polymers, food, proteins and peptides, solutions, mixtures, nano materials, pharmaceuticals, and others. Especially, biological and environmental applications have significantly emerged. This survey review paper shows that 2D-COS is an actively evolving and expanding field.
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Affiliation(s)
- Yeonju Park
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Sila Jin
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Isao Noda
- Department of Materials Science and Engineering, University of Delaware, Newark, DE 19716, USA.
| | - Young Mee Jung
- Kangwon Radiation Convergence Research Support Center, Kangwon National University, Chuncheon 24341, Republic of Korea; Department of Chemistry, and Institute for Molecular Science and Fusion Technology, Kangwon National University, Chuncheon 24341, Republic of Korea.
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4
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Bian Y, Zhang C, Wang H, Cao Q. Degradable Nanofiber for Eco-friendly Air Filtration: Progress and Perspectives. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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5
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Wang S, Wang Z, Xu J, Liu Q, Sui Z, Du X, Cui Y, Yuan Y, Yu J, Wang Y, Chang Y. Construction of N-spirocyclic cationic three-dimensional highly stable transport channels by electrospinning for anion exchange membrane fuel cells. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Teixeira MA, Antunes JC, Seabra CL, Fertuzinhos A, Tohidi SD, Reis S, Amorim MTP, Ferreira DP, Felgueiras HP. Antibacterial and hemostatic capacities of cellulose nanocrystalline-reinforced poly(vinyl alcohol) electrospun mats doped with Tiger 17 and pexiganan peptides for prospective wound healing applications. BIOMATERIALS ADVANCES 2022; 137:212830. [PMID: 35929263 DOI: 10.1016/j.bioadv.2022.212830] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 04/14/2022] [Accepted: 04/26/2022] [Indexed: 06/15/2023]
Abstract
Infection is a major issue in chronic wound care. Different dressings have been developed to prevent microbial propagation, but an effective, all-in-one (cytocompatible, antimicrobial and promoter of healing) solution is still to be uncovered. In this research, polyvinyl alcohol (PVA) nanofibrous mats reinforced with cellulose nanocrystal (CNC), at 10 and 20% v/v ratios, were produced by electrospinning, crosslinked with glutaraldehyde vapor and doped with specialized peptides. Crosslinking increased the mats' fiber diameters but maintained their bead-free morphology. Miscibility between polymers was confirmed by Fourier-transform infrared spectroscopy and thermal evaluations. Despite the incorporation of CNC having reduced the mats' mechanical performance, it improved the mats' surface energy and its structural stability over time. Pexiganan with an extra cysteine group was functionalized onto the mats via hydroxyl- polyethylene glycol 2-maleimide, while Tiger 17 was physisorbed to preserve its cyclic conformation. Antimicrobial assessments demonstrated the peptide-doped mat's effectiveness against Staphylococcus aureus and Pseudomonas aeruginosa; pexiganan contributed mostly for such outcome. Tiger 17 showed excellent capacity in accelerating clotting. Cytocompatibility evaluations attested to these mats' safety. C90/10 PVA/CNC mats were deemed the most effective from the tested group and, thus, a potentially effective option for chronic wound treatments.
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Affiliation(s)
- Marta A Teixeira
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Joana C Antunes
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Catarina L Seabra
- Associate Laboratory for Green Chemistry (LAQV), Network of Chemistry and Technology (REQUIMTE), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Aureliano Fertuzinhos
- Center for MicroElectroMechanics Systems (CMEMS), UMinho, Department of Mechanical Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Shafagh D Tohidi
- Digital Transformation Colab (DTX), Department of Mechanical Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Salette Reis
- Associate Laboratory for Green Chemistry (LAQV), Network of Chemistry and Technology (REQUIMTE), Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - M Teresa P Amorim
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Diana P Ferreira
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Helena P Felgueiras
- Centre for Textile Science and Technology (2C2T), Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal.
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7
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A review of recent developments of polypropylene surgical mesh for hernia repair. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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8
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Fan Y, Liu Y, Wu Y, Dai F, Yuan M, Wang F, Bai Y, Deng H. Natural polysaccharides based self-assembled nanoparticles for biomedical applications - A review. Int J Biol Macromol 2021; 192:1240-1255. [PMID: 34678381 DOI: 10.1016/j.ijbiomac.2021.10.074] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 10/04/2021] [Accepted: 10/09/2021] [Indexed: 12/13/2022]
Abstract
In recent years, nanoparticles (NPs) derived from the self-assembly of natural polysaccharides have shown great potential in the biomedical field. Here, we described several self-assembly modes of natural polysaccharides in detail, summarized the natural polysaccharides mostly used for self-assembly, and provided insights into the current applications and achievements of these self-assembled NPs. As one of the most widespread substances in nature, most natural polysaccharides exhibit advantages of biodegradability, low immunogenicity, low toxicity, and degradable properties. Therefore, they have been fully explored, and the application of chitosan, hyaluronic acid, alginate, starch, and their derivatives has been extensively studied, especially in the fields of biomedical. Polysaccharides based NPs were proved to improve the solubility of insoluble drugs, enhance tissue target ability and realize the controlled and sustained release of drugs. When modified by hydrophobic groups, the amphiphilic polysaccharides can self-assemble into NPs. Other driven forces of self-assembly include electrostatic interaction and hydrogen bonds. Up to the present, polysaccharides-based nanoparticles have been widely applied for tumor treatment, antibacterial application, gene therapy, photodynamic therapy and transporting insulin.
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Affiliation(s)
- Yaqi Fan
- Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai 200443, China
| | - Yeqiang Liu
- Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai 200443, China
| | - Yang Wu
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China
| | - Fangfang Dai
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Mengqin Yuan
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, China
| | - Feiyan Wang
- Shanghai Skin Disease Clinical College of Anhui Medical University, Shanghai Skin Disease Hospital, Shanghai 200443, China
| | - Yun Bai
- Shanghai Skin Disease Hospital, Tongji University School of Medicine, Shanghai 200443, China.
| | - Hongbing Deng
- Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Hubei Key Laboratory of Biomass Resource Chemistry and Environmental Biotechnology, Hubei Engineering Center of Natural Polymers-based Medical Materials, School of Resource and Environmental Science, Wuhan University, Wuhan 430079, China.
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9
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Raza ZA, Munim SA, Ayub A. Recent developments in polysaccharide-based electrospun nanofibers for environmental applications. Carbohydr Res 2021; 510:108443. [PMID: 34597980 DOI: 10.1016/j.carres.2021.108443] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 09/08/2021] [Accepted: 09/09/2021] [Indexed: 12/20/2022]
Abstract
Electrospinning has become an inevitable approach to produce nanofibrous structures for diverse environmental applications. Polysaccharides, due to their variety of types, biobased origins, and eco-friendly, and renewable nature are wonderful materials for the said purpose. The present review discusses the electrospinning process, the parameters involved in the formation of electrospun nanofibers in general, and the polysaccharides in specific. The selection of materials to be electrospun depends on the processing conditions and properties deemed desirable for specific applications. Thereby, the conditions to electrospun polysaccharides-based nanofibers have been focused on for possible environmental applications including air filtration, water treatment, antimicrobial treatment, environmental sensing, and so forth. The polysaccharide-based electrospun membranes, for instance, due to their active adsorption sites could find significant potential for contaminants removal from the aqueous systems. The study also gives some recommendations to overcome any shortcomings faced during the electrospinning and environmental applications of polysaccharide-based matrices.
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Affiliation(s)
- Zulfiqar Ali Raza
- Department of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan.
| | - S A Munim
- Department of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan
| | - Asif Ayub
- Department of Applied Sciences, National Textile University, Faisalabad, 37610, Pakistan
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Andrade J, González-Martínez C, Chiralt A. Effect of phenolic acids on the properties of films from Poly (vinyl alcohol) of different molecular characteristics. Food Packag Shelf Life 2021. [DOI: 10.1016/j.fpsl.2021.100711] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Shanmugam V, Babu K, Garrison TF, Capezza AJ, Olsson RT, Ramakrishna S, Hedenqvist MS, Singha S, Bartoli M, Giorcelli M, Sas G, Försth M, Das O, Restás Á, Berto F. Potential natural polymer-based nanofibres for the development of facemasks in countering viral outbreaks. J Appl Polym Sci 2021; 138:50658. [PMID: 34149062 PMCID: PMC8206777 DOI: 10.1002/app.50658] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 12/13/2022]
Abstract
The global coronavirus disease 2019 (COVID-19) pandemic has rapidly increased the demand for facemasks as a measure to reduce the rapid spread of the pathogen. Throughout the pandemic, some countries such as Italy had a monthly demand of ca. 90 million facemasks. Domestic mask manufacturers are capable of manufacturing 8 million masks each week, although the demand was 40 million per week during March 2020. This dramatic increase has contributed to a spike in the generation of facemask waste. Facemasks are often manufactured with synthetic materials that are non-biodegradable, and their increased usage and improper disposal are raising environmental concerns. Consequently, there is a strong interest for developing biodegradable facemasks made with for example, renewable nanofibres. A range of natural polymer-based nanofibres has been studied for their potential to be used in air filter applications. This review article examines potential natural polymer-based nanofibres along with their filtration and antimicrobial capabilities for developing biodegradable facemask that will promote a cleaner production.
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Affiliation(s)
- Vigneshwaran Shanmugam
- Faculty of Mechanical EngineeringSaveetha School of Engineering, Saveetha Institute of Medical and Technical SciencesChennaiTamil NaduIndia
| | - Karthik Babu
- Department of Mechanical EngineeringCenturion University of Technology and ManagementSitapurOdishaIndia
| | - Thomas F. Garrison
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahranSaudi Arabia
| | - Antonio J. Capezza
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
- Department of Plant Breeding, Faculty of Landscape ArchitectureHorticulture and Crop Production Science, SLU Swedish University of Agricultural SciencesAlnarpSweden
| | - Richard T. Olsson
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Faculty of EngineeringCenter for Nanofibres and NanotechnologySingaporeSingapore
| | - Mikael S. Hedenqvist
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Shuvra Singha
- Department of Fibre and Polymer Technology, Polymeric Materials DivisionSchool of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of TechnologySweden
| | - Mattia Bartoli
- Department of applied science and technology (DISAT)Politecnico di TorinoTorinoItaly
| | - Mauro Giorcelli
- Department of applied science and technology (DISAT)Politecnico di TorinoTorinoItaly
- Department of applied science and technology (DISAT)Istituto Italiano di Tecnologia (IIT)TorinoItaly
| | - Gabriel Sas
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Michael Försth
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Oisik Das
- Structural and Fire Engineering Division, Department of Civil, Environmental and Natural Resources EngineeringLuleå University of TechnologyLuleåSweden
| | - Ágoston Restás
- Department of Fire Protection and Rescue ControlNational University of Public ServiceBudapestHungary
| | - Filippo Berto
- Department of Mechanical EngineeringNorwegian University of Science and TechnologyTrondheimNorway
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Kim MS, Ryu KM, Lee SH, Choi YC, Rho S, Jeong YG. Chitin Nanofiber-Reinforced Waterborne Polyurethane Nanocomposite Films with Enhanced Thermal and Mechanical Performance. Carbohydr Polym 2021; 258:117728. [PMID: 33593583 DOI: 10.1016/j.carbpol.2021.117728] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 01/12/2021] [Accepted: 01/25/2021] [Indexed: 02/03/2023]
Abstract
To attain eco-friendly polyurethane composites with enhanced thermal and mechanical properties, in this study, a series of cationic waterborne polyurethane (cWPU) nanocomposite films reinforced with 1-50 wt% chitin nanofiber (ChNF) loadings was fabricated by a facile aqueous dispersion casting. The microstructure, thermal and mechanical properties of the nanocomposite films were investigated by considering the loading content and the interfacial interaction of ChNF in the cWPU matrix. For the purpose, a hard/soft segmented cWPU with an average particle size of ∼151 nm in aqueous dispersion was synthesized by using poly(tetramethylene glycol), isophorone diisocyanate, N-methyldiethanolamine, and 1,4-butanediol. The FT-IR spectra confirmed the existence of specific hydrogen-bonding interactions between hydroxyl/acetyl amine/ammonium groups of ChNFs and urethane/protonated amine groups of cWPU hard segments. Accordingly, the thermal decomposition temperatures of cWPU/ChNF nanocomposite films increased with increasing the ChNF content. In addition, the storage moduli of cWPU/ChNF nanocomposite films increased significantly with the increment of ChNF content up to ∼7 wt%, which stems from the restricted chain mobility of cWPU backbones composed of semicrystalline soft segments and hard segments interacting with ChNFs via multiple hydrogen-bonding interactions.
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Affiliation(s)
- Min Su Kim
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Kyoung Moon Ryu
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Sang Hoon Lee
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Young Chul Choi
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Sangchul Rho
- ANPOLY, Pohang-si, Gyeongsanbuk-do, 37666, Republic of Korea
| | - Young Gyu Jeong
- Department of Applied Organic Materials Engineering, Chungnam National University, Daejeon, 34134, Republic of Korea.
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Ma L, Liu Z, Kong Z, Wang M, Li T, Zhu H, Wan Q, Liu D, Shen Q. Functional characterization of a novel copper-dependent lytic polysaccharide monooxygenase TgAA11 from Trichoderma guizhouense NJAU 4742 in the oxidative degradation of chitin. Carbohydr Polym 2021; 258:117708. [DOI: 10.1016/j.carbpol.2021.117708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 12/14/2020] [Accepted: 01/22/2021] [Indexed: 01/05/2023]
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14
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Deng W, Tan Y, Riaz Rajoka MS, Xue Q, Zhao L, Wu Y. A new type of bilayer dural substitute candidate made up of modified chitin and bacterial cellulose. Carbohydr Polym 2020; 256:117577. [PMID: 33483072 DOI: 10.1016/j.carbpol.2020.117577] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/04/2020] [Accepted: 12/27/2020] [Indexed: 10/22/2022]
Abstract
In the field of neurosurgery, timely and effective repair of dura mater plays an important role in stabilizing the physiological functions of the human body. Therefore, the aim of this study is to develop a new type of bilayer membrane as a dural substitute candidate. It consists of a dense layer that prevents cerebrospinal fluid leakage and a porous layer that promotes tissue regeneration. The dense layer, a composite polysaccharid film, was composed of high molecular weight chitosan (CS) and bacterial cellulose (BC). The porous layer, a composite polysaccharid scaffold cross-linked by glutaraldehyde (GA) or citric acid (CA) respectively, was composed of O-carboxymethyl chitin (O-CMCH) and BC. The bilayer dural substitutes were characterized in terms of SEM, mechanical behavior, swelling rate, anti-leakage test, in vitro cytotoxicity, proliferation, and animal experiment. Results indicated that all prepared dural substitutes were tightly bound between layers without excessively large cavities. The porous layer showed appropriate pore size (90~200 μm) with high porous connectivity. The optimized bilayer dural substitutes showed suitable swelling rate and mechanical behavior. Furthermore, no leakage was observed during testing, no cytotoxicity effect on NIH/3T3 cells, and exhibited excellent cell proliferation promoting properties. Also, it was observed that it did not deform in the peritoneal environment of mice, and tissue inflammation was mild.
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Affiliation(s)
- Wenjing Deng
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China.
| | - Yongxin Tan
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China.
| | - Muhammad Shahid Riaz Rajoka
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China.
| | - Qinghui Xue
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China.
| | - Liqing Zhao
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China.
| | - Yiguang Wu
- Department of Food Science and Engineering, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen, Guangdong, People's Republic of China.
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