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Pourheydari-Barsari Z, Mirzadeh H, Farhadi M, Solouk A, Jalessi M. Antibacterial aligned nanofibrous chitosan/PVA patch for repairing chronic tympanic membrane perforations. Int J Biol Macromol 2023; 253:126597. [PMID: 37660854 DOI: 10.1016/j.ijbiomac.2023.126597] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/05/2023]
Abstract
Chronic tympanic membrane (TM) perforation is a consequence of trauma or chronic otitis media, and these chronic TM perforations often lead to conduction hearing loss. This study focuses on the development of a patch using a combination of chitosan (CS) and polyvinyl alcohol (PVA) as graft material for repairing chronic tympanic membrane (TM) perforations. Aligned nanofibers were created using a specially designed collector (SDC) through the electrospinning method. The scanning electron microscopy (SEM) analysis revealed that the CS/PVA ratio of (15:85) resulted in uniform and bead-free nanofibers. The aligned nanofibers had a diameter of 131.11 ± 28 nm, indicating that the influence of the electrostatic field introduced by the SDC affected not only the nanofiber alignment but also the nanofiber diameter. The nanofiber angles demonstrated effective alignment. This patch is infused with thyme essential oil (TEO) for antibacterial properties. The results showed that its antibacterial property for Pseudomonas aeruginosa bacteria was enhanced in such a way that the diameter of the antibacterial halo increased from zero to 25 mm. Cell viability assays showed >80 % viability. A preclinical case study on six patients demonstrated the biocompatibility and promising potential of the fabricated patch for eardrum repair.
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Affiliation(s)
- Zohreh Pourheydari-Barsari
- Polymer Engineering and Color Technology, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Hamid Mirzadeh
- Polymer Engineering and Color Technology, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
| | - Mohammad Farhadi
- ENT and Head and Neck Research Center and Department, the Five Senses Health Institute, Rasoul Akram Hospital, Faulty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Atefeh Solouk
- Biomedical Engineering Department, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Maryam Jalessi
- Skull Base Research Center, the Five Senses Health Institute, Rasoul Akram Hospital, Faulty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Muzata TS, Gebrekrstos A, Orasugh JT, Ray SS. An overview of recent advances in polymer composites with improved
UV
‐shielding properties. J Appl Polym Sci 2023. [DOI: 10.1002/app.53693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Affiliation(s)
- Tanyaradzwa S. Muzata
- Department of Polymer Technology and Engineering Harare Institute of Technology Harare Zimbabwe
| | - Amanuel Gebrekrstos
- Department of Chemical Sciences University of Johannesburg Johannesburg South Africa
- Centre for Nanostructures and Advanced Materials DSI‐CSIR Nanotechnology Innovation Centre, Council for Scientific and Industrial Research Pretoria South Africa
| | - Jonathan Tersur Orasugh
- Department of Chemical Sciences University of Johannesburg Johannesburg South Africa
- Centre for Nanostructures and Advanced Materials DSI‐CSIR Nanotechnology Innovation Centre, Council for Scientific and Industrial Research Pretoria South Africa
| | - Suprakas Sinha Ray
- Department of Chemical Sciences University of Johannesburg Johannesburg South Africa
- Centre for Nanostructures and Advanced Materials DSI‐CSIR Nanotechnology Innovation Centre, Council for Scientific and Industrial Research Pretoria South Africa
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Chen J, Xu Y, Pius BA, Wang P, Xu X. Changes of myofibrillar protein structure improved the stability and distribution of baicalein in emulsion. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Preparation and characterization of antioxidant packaging by chitosan, D-α-tocopheryl polyethylene glycol 1000 succinate and baicalein. Int J Biol Macromol 2020; 153:836-845. [DOI: 10.1016/j.ijbiomac.2020.03.076] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 02/23/2020] [Accepted: 03/10/2020] [Indexed: 12/20/2022]
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Li TT, Yan M, Jiang Q, Peng HK, Lin JH, Lou CW. Characterization and Microstructure of Linear Electrode-Electrospun Graphene-Filled Polyvinyl Alcohol Nanofiber Films. MATERIALS 2018; 11:ma11061033. [PMID: 29921778 PMCID: PMC6025312 DOI: 10.3390/ma11061033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/11/2018] [Accepted: 06/13/2018] [Indexed: 01/27/2023]
Abstract
With the aim of achieving controllable mass production of electrospun nanofiber films, this study proposes and investigates the feasibility of using a custom-made linear electrode- electrospun device to produce conductive graphene (GR)-filled polyvinyl alcohol (PVA) nanofibers. The film morphology and diameter of nanofibers are observed and measured to examine the effects of viscosity and conductivity of the PVA/GR mixtures. Likewise, the influence of the content of graphene on the hydrophilicity, electrical conductivity, electromagnetic interference shielding effectiveness (EMSE), and thermal stability of the PVA/GR nanofiber films is investigated. The test results show that the PVA/GR mixture has greater viscosity and electric conductivity than pure PVA solution and can be electrospun into PVA/GR nanofiber films that have good morphology and diameter distribution. The diameter of the nanofibers is 100 nm and the yield is 2.24 g/h, suggesting that the process qualifies for use in large-scale production. Increasing the content of graphene yields finer nanofibers, a smaller surface contact angle, and higher hydrophilicity of the nanofiber films. The presence of graphene is proven to improve the thermal stability and strengthens the EMSE by 20 dB at 150–1500 MHz. Mass production is proven to be feasible by the test results showing that PVA/GR nanofiber films can be used in the medical hygiene field.
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Affiliation(s)
- Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou 350108, China.
| | - Mengxue Yan
- Innovation Platform of Intelligent and Energy-Saving Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Qian Jiang
- Innovation Platform of Intelligent and Energy-Saving Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Hao-Kai Peng
- Innovation Platform of Intelligent and Energy-Saving Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, Tianjin Polytechnic University, Tianjin 300387, China.
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan.
- Department of Chemical Engineering and Materials, Ocean College, Minjiang University, Fuzhou 350108, China.
- Department of Fashion Design, Asia University, Taichung 41354, Taiwan.
- School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan.
- College of Textile and Clothing, Qingdao University, Shandong 266071, China.
| | - Ching-Wen Lou
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou 350108, China.
- Department of Chemical Engineering and Materials, Ocean College, Minjiang University, Fuzhou 350108, China.
- College of Textile and Clothing, Qingdao University, Shandong 266071, China.
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung 41354, Taiwan.
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Ahire JJ, Robertson DD, van Reenen AJ, Dicks LMT. Surfactin-loaded polyvinyl alcohol (PVA) nanofibers alters adhesion of Listeria monocytogenes to polystyrene. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:27-33. [PMID: 28532029 DOI: 10.1016/j.msec.2017.03.248] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 03/24/2017] [Accepted: 03/26/2017] [Indexed: 01/01/2023]
Abstract
Surfactin-loaded polyvinyl alcohol (PVA) nanofibers were spun using gravity electrospinning. Scanning electron microscopy (SEM) images showed that nanofibers spun with surfactin are free from bead formation and uniform in diameter. The average nanofiber diameters were decreased (273±39nm, 259±39nm and 217±33nm) with increasing levels of surfactin (0.5, 1.0 and 1.5%, w/v) into PVA (10%, w/v). The 10% (w/v) PVA had average fiber diameter of 303±33nm. Atomic force microscopy (AFM) analysis showed that fibers spun with surfactin are not smooth as PVA fibers. The surface average roughness (Sa) estimated for surfactin loaded nanofibers (0.5%: 19.0nm, 1.0%: 20.4nm and 1.5%: 20.7nm) was higher as compared with PVA (10%:15.8nm). Scanning transmission electron microscopy (STEM) showed no matrix differences between PVA and surfactin-loaded PVA nanofibers. Fourier transform infrared (FTIR) microscopy revealed uniform distribution of surfactin in PVA. Based on differential scanning calorimetry (DSC) analyses, surfactin decreased the crystallinity of PVA during spinning. No antimicrobial activity was detected against methicillin-resistant Staphylococcus aureus (MRSA) strain Xen 30, Listeria monocytogenes EDGe, Escherichia coli Xen 14, and Pseudomonas aeruginosa PA01. However, the adhesion of L. monocytogenes to polystyrene in presence of surfactin-loaded nanofibers decreased significantly (OD595: 0.012±0.001) as compared with control (OD595: 0.022±0.002), suggesting that these nanofibers may be used in wound dressings or in the coating of prosthetic devices to prevent biofilm formation and secondary infections.
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Affiliation(s)
- J J Ahire
- Department of Microbiology, University of Stellenbosch, 7602, Matieland, Stellenbosch, South Africa.
| | - D D Robertson
- Department of Chemistry and Polymer Science, University of Stellenbosch, 7602, Matieland, Stellenbosch, South Africa
| | - A J van Reenen
- Department of Chemistry and Polymer Science, University of Stellenbosch, 7602, Matieland, Stellenbosch, South Africa
| | - L M T Dicks
- Department of Microbiology, University of Stellenbosch, 7602, Matieland, Stellenbosch, South Africa
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Nunes MAP, Martins S, Rosa ME, Gois PMP, Fernandes PCB, Ribeiro MHL. Improved thermostable polyvinyl alcohol electrospun nanofibers with entangled naringinase used in a novel mini-packed bed reactor. BIORESOURCE TECHNOLOGY 2016; 213:208-215. [PMID: 27020127 DOI: 10.1016/j.biortech.2016.03.058] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/09/2016] [Accepted: 03/11/2016] [Indexed: 06/05/2023]
Abstract
Polyvinyl alcohol (PVA) electrospun nanofibers were produced using an electrospinning technique. Key parameters (e.g. collectors, distance from needle tip to collector, among others) that influence the structure and morphology of fibers were optimized. The naringinase entrapped in PVA nanofibers retained over 100% of its initial activity after 212h of operation, at 25°C. Chemical crosslinking with several boronic acids further increased the hydrolysis temperature (up to 85°C) and yielded nanofibers with thermal stability up to 121°C. A mini packed bed reactor (PBR) developed to establish the feasibility for continuous enzymatic operation, ran for 16days at 45°C. Highest naringenin biosynthesis was attained at a flow rate of 10mLh(-1). Highest volumetric (78molL(-1)h(-1)) and specific (26molh(-1)genzyme(-1)) productivities were attained at 30mLh(-1). The activity of NGase in electrospun nanofibers remained constant for almost 16days of operation at 10mLh(-1).
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Affiliation(s)
- Mário A P Nunes
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade Lisboa, Av. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Samuel Martins
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade Lisboa, Av. Gama Pinto, 1649-003 Lisboa, Portugal
| | - M Emilia Rosa
- Instituto de Ciência e Engenharia de Materiais e Superfícies, Departamento de Engenharia de Materiais, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade Lisboa, Av. Gama Pinto, 1649-003 Lisboa, Portugal
| | - Pedro C B Fernandes
- Institute of Bioengineering and Biosciences, Department of Bioengineering, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Maria H L Ribeiro
- Research Institute for Medicines (iMed.ULisboa), Faculdade de Farmácia, Universidade Lisboa, Av. Gama Pinto, 1649-003 Lisboa, Portugal.
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Wang J, Vermerris W. Antimicrobial Nanomaterials Derived from Natural Products-A Review. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E255. [PMID: 28773379 PMCID: PMC5502919 DOI: 10.3390/ma9040255] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 03/18/2016] [Accepted: 03/23/2016] [Indexed: 01/21/2023]
Abstract
Modern medicine has relied heavily on the availability of effective antibiotics to manage infections and enable invasive surgery. With the emergence of antibiotic-resistant bacteria, novel approaches are necessary to prevent the formation of biofilms on sensitive surfaces such as medical implants. Advances in nanotechnology have resulted in novel materials and the ability to create novel surface topographies. This review article provides an overview of advances in the fabrication of antimicrobial nanomaterials that are derived from biological polymers or that rely on the incorporation of natural compounds with antimicrobial activity in nanofibers made from synthetic materials. The availability of these novel materials will contribute to ensuring that the current level of medical care can be maintained as more bacteria are expected to develop resistance against existing antibiotics.
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Affiliation(s)
- Ji Wang
- Department of Microbiology & Cell Science, IFAS, University of Florida, Cancer/Genetics Research Complex 302, 2033 Mowry Road, Gainesville, FL 32610, USA.
- UF Genetics Institute, University of Florida, Gainesville, FL 32610, USA.
| | - Wilfred Vermerris
- Department of Microbiology & Cell Science, IFAS, University of Florida, Cancer/Genetics Research Complex 302, 2033 Mowry Road, Gainesville, FL 32610, USA.
- UF Genetics Institute, University of Florida, Gainesville, FL 32610, USA.
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Park JA, Kim SB. Preparation and characterization of antimicrobial electrospun poly(vinyl alcohol) nanofibers containing benzyl triethylammonium chloride. REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2015.05.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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10
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Gupta KC, Haider A, Choi YR, Kang IK. Nanofibrous scaffolds in biomedical applications. Biomater Res 2014; 18:5. [PMID: 26331056 PMCID: PMC4549138 DOI: 10.1186/2055-7124-18-5] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 06/04/2014] [Indexed: 01/26/2023] Open
Abstract
Nanofibrous scaffolds are artificial extracellular matrices which provide natural environment for tissue formation. In comparison to other forms of scaffolds, the nanofibrous scaffolds promote cell adhesion, proliferation and differentiation more efficiently due to having high surface to volume ratio. Although scaffolds for tissue engineering have been fabricated by various techniques but electrospun nanofibrous scaffolds have shown great potential in the fields of tissue engineering and regeneration. This review highlights the applications and importance of electrospun nanofibrous scaffolds in various fields of biomedical applications ranging from drug delivery to wound healing. Attempts have also been made to highlights the advantages and disadvantages of nanofirbous scaffolds fabricated for biomedical applications using technique of electrospinning. The role of various factors controlling drug distribution in electrospun nanofibrous scaffolds is also discussed to increase the therapeutic efficiency of nanofibrous scaffolds in wound healing and drug delivery applications.
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Affiliation(s)
- Kailash Chandra Gupta
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu, 702-701 South Korea ; Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667 India
| | - Adnan Haider
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu, 702-701 South Korea
| | - Yu-Ri Choi
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu, 702-701 South Korea
| | - Inn-Kyu Kang
- Department of Polymer Science and Engineering, Kyungpook National University, Daegu, 702-701 South Korea
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Antimicrobial activity of electrospun polyurethane nanofibers containing composite materials. KOREAN J CHEM ENG 2014. [DOI: 10.1007/s11814-013-0257-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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12
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Copper nanowire/PA6 composites prepared by in situ polymerization and its properties. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0257-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Molecularly imprinted electrospun nanofibers for adsorption of nickel-5,10,15,20-tetraphenylporphine (NTPP) in organic media. JOURNAL OF POLYMER RESEARCH 2013. [DOI: 10.1007/s10965-013-0148-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Yue X, Feng S, Li S, Jing Y, Shao C. Bromopropyl functionalized silica nanofibers for effective removal of trace level dieldrin from water. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.04.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Cozzolino CA, Blomfeldt TO, Nilsson F, Piga A, Piergiovanni L, Farris S. Dye release behavior from polyvinyl alcohol films in a hydro-alcoholic medium: Influence of physicochemical heterogeneity. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.03.054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Yousef A, Barakat NA, Al-Deyab SS, Nirmala R, Pant B, Kim HY. Encapsulation of CdO/ZnO NPs in PU electrospun nanofibers as novel strategy for effective immobilization of the photocatalysts. Colloids Surf A Physicochem Eng Asp 2012. [DOI: 10.1016/j.colsurfa.2012.02.033] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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