1
|
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.
Collapse
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
| |
Collapse
|
2
|
A New Mediterranean Flour Moth-Derived Chitosan: Characterization and Co-electrospun Hybrid Fabrication. Appl Biochem Biotechnol 2022; 195:3047-3066. [PMID: 36508074 DOI: 10.1007/s12010-022-04246-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2022] [Indexed: 12/14/2022]
Abstract
In this study, the chitin of adult Mediterranean flour moth (Ephestia kuheniella) (Cht) was extracted and then converted to chitosan by deacetylation process to achieve the chitosan derived from E. kuheniella (Chsfm). The new chitosan-based scaffold was produced using the polyvinyl alcohol (PVA) co-electrospinning technique. The degree of deacetylation was obtained using the distillation-titration and Fourier transform infrared spectroscopy. The surface morphology and crystallinity index of Chsfm were observed using scanning electron microscopy and X-ray diffraction analysis, respectively, and compared with the commercial chitosan (Chsc). Thermogravimetric analysis was used to estimate two chitosans' water content and thermal stability. The average molecular mass analysis was performed using viscometry. Moreover, the minimum inhibitory concentration and DPPH assay were used to study the antimicrobial activity and antioxidant potential of the Chsfm, respectively. Accordingly, Chsfm was smoother with fewer pores and flakes than Chsc, and its crystallinity index was higher than Chsc. The water content and thermal stability were lower and similar for Chsfm compared to Chsc. The average molecular mass of Chsfm was ~ 5.8 kDa, making it classified as low molecular weight chitosan. The antimicrobial activity of Chsfm against a representative Gram-negative bacteria; E. coli resulted to be the same as Chsc. However, less effective than Chsc against a representative Gram-positive bacteria is S. aureus. The Chsfm/PVA ratio scaffold was optimized at 30:70 to fabricate a uniform nanofiber scaffold.
Collapse
|
3
|
Indrakumar J, Sankar S, Madhyastha H, Muthukaliannan GK. Progressive Application of Marine Biomaterials in Targeted Cancer Nanotherapeutics. Curr Pharm Des 2022; 28:3337-3350. [PMID: 35466870 DOI: 10.2174/1381612828666220422091611] [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: 10/12/2021] [Revised: 12/15/2021] [Accepted: 01/04/2022] [Indexed: 01/28/2023]
Abstract
The marine microenvironment harbors many unique species of organisms that produce a plethora of compounds that help mankind cure a wide range of diseases. The diversity of products from the ocean bed serves as potentially healing materials and inert vehicles carrying the drug of interest to the target site. Several composites still lay undiscovered under the blue canopy, which can provide treatment for untreated diseases that keep haunting the earth periodically. Cancer is one such disease that has been of interest to several eminent scientists worldwide due to the heterogenic complexity involved in the disease's pathophysiology. Due to extensive globalization and environmental changes, cancer has become a lifestyle disease continuously increasing exponentially in the current decade. This ailment requires a definite remedy that treats by causing minimal damage to the body's normal cells. The application of nanotechnology in medicine has opened up new avenues of research in targeted therapeutics due to their highly malleable characteristics. Marine waters contain an immense ionic environment that succors the production of distinct nanomaterials with exceptional character, yielding highly flexible molecules to modify, thus facilitating the engineering of targeted biomolecules. This review provides a short insight into an array of marine biomolecules that can be probed into cancer nanotherapeutics sparing healthy cells.
Collapse
Affiliation(s)
- Janani Indrakumar
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Srivarshini Sankar
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Harishkumar Madhyastha
- Department of Medical Sciences, Division of Cardio-Vascular Physiology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | | |
Collapse
|
4
|
García García CE, Verdier C, Lardy B, Bossard F, Soltero Martínez JFA, Rinaudo M. Chondrocyte cell adhesion on chitosan supports using single-cell atomic force microscopy. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.2008135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Christian Enrique García García
- Departamento de Ingeniería Química, Universidad de Guadalajara, Guadalajara, Mexico
- Univ. Grenoble Alpes, CNRS, Grenoble INP (Grenoble Institute of Engineering), LRP, Grenoble, France
| | | | - Bernard Lardy
- Pôle Biologie, DBTP, Biochimie des Enzymes et des Protéines, CHU-Grenoble, Grenoble, France
| | - Frédéric Bossard
- Univ. Grenoble Alpes, CNRS, Grenoble INP (Grenoble Institute of Engineering), LRP, Grenoble, France
| | | | | |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Fabrication of amphotericin B-loaded electrospun core-shell nanofibers as a novel dressing for superficial mycoses and cutaneous leishmaniasis. Int J Pharm 2021; 606:120911. [PMID: 34298105 DOI: 10.1016/j.ijpharm.2021.120911] [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: 04/14/2021] [Revised: 07/16/2021] [Accepted: 07/17/2021] [Indexed: 11/21/2022]
Abstract
Amphotericin B (AmB) is an antifungal and antiparasitic agent that is the main drug used for the treatment of mycoses infections and leishmaniasis. However, its high toxicity and side effects are the main difficulties attributed to its application. In this study, to minimize its harmful effects, AmB-loaded core-shell nanofibers were fabricated, using polyvinyl alcohol, chitosan, and AmB as the core, and polyethylene oxide and gelatin as the shell-forming components. The nanofibers were characterized, using scanning electron microscopy, transmission electron microscopy, Fourier-transform infrared spectroscopy, tensile test, drug release, and MTT assay. The results showed that the prepared nanofibers were smooth and had a core-shell structure with almost no cytotoxicity against fibroblast cells and the release study suggested that the core-shell structure decreased the burst release. The disk diffusion assay revealed that the nanofibrous mats at different AmB concentrations exhibited significant activity against all the eight evaluated fungal species with the inhibition zones of 1.4-2.6 cm. The flow cytometry assay also showed that the prepared nanofibrous mat significantly killed Leishmania major promastigotes up to 84%. The obtained results indicated that this AmB-loaded nanofibrous system could be a suitable candidate for a topical drug delivery system for the treatment of both superficial mycoses and cutaneous leishmaniasis.
Collapse
|
7
|
Physico-Chemical Properties of a Hybrid Biomaterial (PVA/Chitosan) Reinforced with Conductive Fillers. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11073040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this study, a novel hybrid material based on Polyvinyl Alcohol-Chitosan (PVA-Chi) was made, reinforced with conductive fillers such as the polypyrrole (PPy), Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT: PSS), carbon black (CB), and multi-wall carbon nanotube (MWCNT). In order to observe the mechanical and electrical responses of this composite material, for obtaining composite materials, and to characterize them for the development of applications in engineering, FTIR analysis made clear the different functional groups present in the matrix and the fillers used. Using quaternary mixtures (4 fillers) increased the contact angle, which increased hydrophobicity of the biocomposite. The Nyquist diagram of the analyzed samples showed a decrease in resistance and energy diffusion; the latter because of transferring electrons caused by the conductive polymers CB and the MWCNT. In the mechanical tension tests, Young’s modulus values of 18.386 MPa were obtained, in contrast with the material matrix of PVA-Chi, which showed values of 11.628 MPa. Morphological analysis by SEM showed the materials got were homogeneous. The materials got showed higher electrical conductivity in the OH’s presence and NH2 groups, which could have possible applications in biopolymer electrodes.
Collapse
|
8
|
Garcia Garcia CE, Bossard F, Rinaudo M. Electrospun Biomaterials from Chitosan Blends Applied as Scaffold for Tissue Regeneration. Polymers (Basel) 2021; 13:1037. [PMID: 33810406 PMCID: PMC8036406 DOI: 10.3390/polym13071037] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/19/2021] [Accepted: 03/24/2021] [Indexed: 12/31/2022] Open
Abstract
Our objective in this work was to summarize the main results obtained in processing pure chitosan and chitosan/hyaluronan complex in view of biomedical applications, taking advantage of their original properties. In addition, an electrospinning technique was selected to prepare nanofiber mats well adapted for tissue engineering in relation to the large porosity of the materials, allowing an exchange with the environment. The optimum conditions for preparation of purified and stable nanofibers in aqueous solution and phosphate buffer pH = 7.4 are described. Their mechanical properties and degree of swelling are given. Then, the prepared biomaterials are investigated to test their advantage for chondrocyte development after comparison of nanofiber mats and uniform films. For that purpose, the adhesion of cells is studied by atomic force microscopy (AFM) using single-cell force spectroscopy, showing the good adhesion of chondrocytes on chitosan. At the end, adhesion and proliferation of chondrocytes in vitro are examined and clearly show the interest of chitosan nanofiber mats compared to chitosan film for potential application in tissue engineering.
Collapse
Affiliation(s)
- Christian Enrique Garcia Garcia
- Departamento de Ingeniería Química, Universidad de Guadalajara, Blvd. M. García Barragán #1451, Guadalajara C.P. 44430, Jalisco, Mexico
- Institute of Engineering Universite, Universite Grenoble Alpes, CNRS, LRP 38000 Grenoble, France;
| | - Frédéric Bossard
- Institute of Engineering Universite, Universite Grenoble Alpes, CNRS, LRP 38000 Grenoble, France;
| | | |
Collapse
|
9
|
Filip P, Zelenkova J, Peer P. Evaluation of an onset of electrospun beadless poly(ethylene oxide) nanofibres. J Appl Polym Sci 2021. [DOI: 10.1002/app.50001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Petr Filip
- Institute of Hydrodynamics Czech Academy of Sciences Prague Czech Republic
| | - Jana Zelenkova
- Institute of Hydrodynamics Czech Academy of Sciences Prague Czech Republic
| | - Petra Peer
- Institute of Hydrodynamics Czech Academy of Sciences Prague Czech Republic
| |
Collapse
|
10
|
Peer P, Zelenkova J, Filip P, Lovecka L. An Estimate of the Onset of Beadless Character of Electrospun Nanofibers Using Rheological Characterization. Polymers (Basel) 2021; 13:polym13020265. [PMID: 33466955 PMCID: PMC7829922 DOI: 10.3390/polym13020265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/05/2021] [Accepted: 01/12/2021] [Indexed: 01/14/2023] Open
Abstract
Electrospinning represents the very effective process of producing nanofibrous mats. This process is influenced by a number of mutually and strongly interlaced entry parameters (characteristics of polymer, solvent, process parameters) and their participation in the resulting nanofiber quality. The appearance of nanofibers is a result of the necessary primary experimental parameter setting within an acceptable range. However, finer analysis of nanofiber quality depends on the proper choice of these individual factors. The aim of this contribution is to evaluate one of the key factors—polymer concentration—with respect to the presence or absence of bead formation. This passage can be approximated by rheological oscillatory measurements when a sudden decrease in phase angle indicates this change. It replaces otherwise time- and cost-consuming trial-and-error experiments. This approach was tested using three different materials: solutions of poly(vinylidene fluoride-co-hexafluoropropylene), poly(vinyl butyral), and poly(ethylene oxide).
Collapse
Affiliation(s)
- Petra Peer
- Institute of Hydrodynamics, Czech Academy of Sciences, 166 12 Prague, Czech Republic; (J.Z.); (P.F.)
- Correspondence:
| | - Jana Zelenkova
- Institute of Hydrodynamics, Czech Academy of Sciences, 166 12 Prague, Czech Republic; (J.Z.); (P.F.)
| | - Petr Filip
- Institute of Hydrodynamics, Czech Academy of Sciences, 166 12 Prague, Czech Republic; (J.Z.); (P.F.)
| | - Lenka Lovecka
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, 760 01 Zlin, Czech Republic;
| |
Collapse
|
11
|
Garcia Garcia CE, Soltero Martínez FA, Bossard F, Rinaudo M. Production of Chitosan/Hyaluronan Complex Nanofibers. Characterization and Physical Properties as a Function of the Composition. Polymers (Basel) 2020; 12:E2004. [PMID: 32899169 PMCID: PMC7565965 DOI: 10.3390/polym12092004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 01/09/2023] Open
Abstract
In this work, optimized conditions for preparation of chitosan and hyaluronan polyelectrolyte complex are proposed. The objective was to produce new biomaterials being biocompatible and bioresorbable in the body as well as approaching the extracellular matrix (ECM) structure. These materials will be tested for chondrocyte development in tissue engineering and wound healing applications. Nanofibers made of the polyelectrolyte complex (PEC) were successfully manufactured by electrospinning, and casted films were used as a model for properties comparison. To our knowledge, it is the first time that stable chitosan/hyaluronan fibers are produced, which were observed to be long-lasting in buffer at pH~7.4. The role of thermal treatment at 120 °C for 4 h is examined to control the degree of swelling by crosslinking of the two polysaccharides by H-bonds and amide bonds formation. The properties of the materials are tested for different PEC compositions at different pH values, based on swelling and solubility degrees, diameters of nanofibers and mechanical performances. The influence of the solvent (acidic potential and composition) utilized to process biomaterials is also examined. Acid formic/water 50/50 v/v is observed to be the more appropriated solvent for the carried-out procedures.
Collapse
Affiliation(s)
- Christian Enrique Garcia Garcia
- Departamento de Ingeniería Química-CUCEI. Blvd. M. García Barragán #1451, C.P., Universidad de Guadalajara, Guadalajara, Jalisco 44430, Mexico;
- Université Grenoble Alpes, CNRS, Grenoble INP, LRP, Institute of Engineering University of Grenoble Alpes, 38000 Grenoble, France;
| | - Félix Armando Soltero Martínez
- Departamento de Ingeniería Química-CUCEI. Blvd. M. García Barragán #1451, C.P., Universidad de Guadalajara, Guadalajara, Jalisco 44430, Mexico;
| | - Frédéric Bossard
- Université Grenoble Alpes, CNRS, Grenoble INP, LRP, Institute of Engineering University of Grenoble Alpes, 38000 Grenoble, France;
| | | |
Collapse
|
12
|
Electrospun Composite Nanofibrous Materials Based on (Poly)-Phenol-Polysaccharide Formulations for Potential Wound Treatment. MATERIALS 2020; 13:ma13112631. [PMID: 32526962 PMCID: PMC7321623 DOI: 10.3390/ma13112631] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/01/2020] [Accepted: 06/05/2020] [Indexed: 12/05/2022]
Abstract
In this paper, we focus on the preparation of electrospun composite nanofibrous materials based on (poly)-phenol-polysaccharide formulation. The prepared composite nanofibres are ideally suited as a controlled drug delivery system, especially for local treatment of different wounds, owing to their high surface and volume porosity and small fibre diameter. To evaluate the formulations, catechin and resveratrol were used as antioxidants. Both substances were embedded into chitosan particles, and further subjected to electrospinning. Formulations were characterized by determination of the particle size, encapsulation efficiency, as well as antioxidant and antimicrobial properties. The electrospinning process was optimised through fine-tuning of the electrospinning solution and the electrospinning parameters. Scanning electron microscopy was used to evaluate the (nano)fibrous structure, while the successful incorporation of bio substances was assessed by X-ray Photoelectron Spectroscopy and Fourier transform infrared spectroscopy. The bioactive properties of the formed nanofibre -mats were evaluated by measuring the antioxidative efficiency and antimicrobial properties, followed by in vitro substance release tests. The prepared materials are bioactive, have antimicrobial and antioxidative properties and at the same time allow the release of the incorporated substances, which assures a promising use in medical applications, especially in wound care.
Collapse
|
13
|
Characterization of Poly(Ethylene Oxide) Nanofibers—Mutual Relations between Mean Diameter of Electrospun Nanofibers and Solution Characteristics. Processes (Basel) 2019. [DOI: 10.3390/pr7120948] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The quality of electrospun poly(ethylene oxide) (PEO) nanofibrous mats are subject to a variety of input parameters. In this study, three parameters were chosen: molecular weight of PEO (100, 300, 600, and 1000 kg/mol), PEO concentration (in distilled water), and shear viscosity of PEO solution. Two relations free of any adjustable parameters were derived. The first, describing the initial stage of an electrospinning process expressing shear viscosity using PEO molecular weight and concentration. The second, expressing mean nanofiber diameter using concentration and PEO molecular weight. Based on these simple mathematical relations, it is possible to control the mean nanofiber diameter during an electrospinning process.
Collapse
|