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Emam HE, Hamouda T, Emam EAM, Darwesh OM, Ahmed HB. Nano-scaled polyacrylonitrile for industrialization of nanofibers with photoluminescence and microbicide performance. Sci Rep 2024; 14:7926. [PMID: 38575619 PMCID: PMC10995123 DOI: 10.1038/s41598-024-58035-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/25/2024] [Indexed: 04/06/2024] Open
Abstract
Nanofibers are investigated to be superiorly applicable in different purposes such as drug delivery systems, air filters, wound dressing, water filters, and tissue engineering. Herein, polyacrylonitrile (PAN) is thermally treated for autocatalytic cyclization, to give optically active PAN-nanopolymer, which is subsequently applicable for preparation of nanofibers through solution blow spinning. Whereas, solution blow spinning is identified as a process for production of nanofibers characterized with high porosity and large surface area from a minimum amounts of polymer solution. The as-prepared nanofibers were shown with excellent photoluminescence and microbicide performance. According to rheological properties, to obtain spinnable PAN-nanopolymer, PAN (12.5-15% wt/vol, honey like solution, 678-834 mPa s), thermal treatment for 2-4 h must be performed, whereas, time prolongation resulted in PAN-nanopolymer gelling or rubbering. Size distribution of PAN-nanopolymer (12.5% wt/vol) is estimated (68.8 ± 22.2 nm), to reflect its compatibility for the production of carbon nanofibers with size distribution of 300-400 nm. Spectral mapping data for the photoluminescent emission showed that, PAN-nanopolymer were exhibited with two intense peaks at 498 nm and 545 nm, to affirm their superiority for production of fluorescent nanofibers. The microbial reduction % was estimated for carbon nanofibers prepared from PAN-nanopolymer (12.5% wt/vol) to be 61.5%, 71.4% and 81.9%, against S. aureus, E. coli and C. albicans, respectively. So, the prepared florescent carbon nanofibers can be potentially applicable in anti-infective therapy.
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Affiliation(s)
- Hossam E Emam
- Department of Pretreatment and Finishing of Cellulosic Based Textiles, Textile Research and Technology Institute, National Research Centre, Scopus Affiliation ID 60014618, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt.
| | - Tamer Hamouda
- Spinning and Weaving Engineering Department, Textile Research and Technology Institute, National Research Centre, 33 EL Buhouth St., Dokki, Giza, 12622, Egypt
| | - El-Amir M Emam
- Faculty of Applied Arts, Textile Printing, Dyeing and Finishing Department, Helwan University, Cairo, 11795, Egypt
| | - Osama M Darwesh
- Agricultural Microbiology Department, National Research Centre, Giza, 12622, Egypt
| | - Hanan B Ahmed
- Chemistry Department, Faculty of Science, Helwan University, Ain-Helwan, Cairo, 11795, Egypt.
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Sharifi M, Sadati SA, Bahrami SH, Haramshahi SMA. Modeling and optimization of poly(lactic acid)/poly(ℇ-caprolactone)/Nigella sativa extract nanofibers production for skin wounds healing by artificial neural network and response surface methodology models. Int J Biol Macromol 2023; 253:127227. [PMID: 37865369 DOI: 10.1016/j.ijbiomac.2023.127227] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/23/2023] [Accepted: 10/01/2023] [Indexed: 10/23/2023]
Abstract
Electrospun fibrous scaffolds have great potential for the effective treatment of wounds. Novel blend scaffolds were fabricated from poly(ℇ- caprolactone) (PCL)/poly (lactic acid) (PLA) with Nigella sativa (NS) extract in different concentrations of 10 %, 15 %, 20 %, and 25 % by one nozzle electrospinning. RSM and ANN models were used to determine optimal nanofiber. The results showed that the ANN model had average goodness values of almost 1.992 which was higher than the RSM model with an amount of 1.823. The best sample was determined with the combination of parameters such as PLA/PCL (70:29) concentration, voltage 17 kV, and flow rate 0.2 ml/h in diameter of nanofiber 410 nm by Genetic Algorithm (GA) model with cost value 0.0216 that was lower than cost value (0.0927) of ANN model. The effect of NS extract on nanofibers properties showed that loading high concentrations of NS extract in PLA/PCL polymer solutions caused a decrease in nanofibers diameter, hydrophilicity, and tensile strength. Overall, PLA/PCL/NS 25 % nanofiber was selected as an optimal web with an average diameter of 370 ± 68 nm with a young modulus 5.94 MPa. This scaffold also exhibited the highest antibacterial activity, cell attachment, and cell viability based on the MTT assay.
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Affiliation(s)
- Mohaddeseh Sharifi
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran
| | - S Ameneh Sadati
- Department of Biomedical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - S Hajir Bahrami
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - S Mohammad Amin Haramshahi
- Department of Tissue Engineering, Cellular and Molecular Research of Center, Iran University of Medical Sciences, Tehran, Iran
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Bokhari N, Yasmeen A, Ali A, Khalid H, Wang R, Bashir M, Sharif F. Silk Meshes Coated with Chitosan-Bioactive Phytochemicals Activate Wound Healing Genes In Vitro. Macromol Biosci 2023; 23:e2300039. [PMID: 37203244 DOI: 10.1002/mabi.202300039] [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: 02/03/2023] [Revised: 04/15/2023] [Indexed: 05/20/2023]
Abstract
Meshes from natural silk are hand knitted and surface functionalized to facilitate hernia repair and other load bearing, tissue applications. Purified organic silk is - hand knitted and then coated with chitosan (CH)/bacterial cellulose (BC) blend polymer using four phytochemicals such as pomegranate (PG) peel, Nigella sativa (NS) seed, Licorice root (LE), and Bearberry leaf extracts (BE) separately. Characterizations using GCMS analysis shows the presence of bioactive chemicals in the extracts. Scanning electron microcopy (SEM) shows that the surface is coated with the composite polymer t. Fourier transform infrared spectroscopy (FTIR) shows significant elements found in CH, BC, and phytochemicals in plant extracts with no chemical changes. Tensile strength of the coated meshes is higher to support tissue as implants. The release kinetics suggest sustained release of phytochemical extracts. In vitro studies confirmed the noncytotoxic, biocompatible, wound healing potential of the meshes. Furthermore, gene expression analysis of 3-wound healing genes shows marked increase in the in vitro cell cultures due to the presence of extracts. These results suggest that the composite meshes can efficiently support hernia closure while facilitating wound/tissue healing and combating bacterial infections. Therefore, these meshes can be good candidates for fistula and cleft palate repair.
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Affiliation(s)
- Natasha Bokhari
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan
- Department of Chemistry, Lahore College for Women University, Lahore, 54000, Pakistan
| | - Abida Yasmeen
- Department of Chemistry, Lahore College for Women University, Lahore, 54000, Pakistan
| | - Asif Ali
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan
- Research Unit Plasma Technology (RUPT), Department of Applied Physics, Faculty of Engineering and Architecture, Ghent University, Ghent, 9000, Belgium
| | - Hamad Khalid
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan
| | - Rong Wang
- Biomedical Polymer Research Group, Cixi Institute of, Biomedical Engineering, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, No. 99 Xuelin Road, Cixi, Ningbo, 315000, China
| | - Mustehsan Bashir
- Department of Plastic, Reconstructive Surgery and Burn Unit, King Edward Medical University, Lahore, 54000, Pakistan
| | - Faiza Sharif
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, 54000, Pakistan
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Magnetite-Based Nanostructured Coatings Functionalized with Nigella sativa and Dicloxacillin for Improved Wound Dressings. Antibiotics (Basel) 2022; 12:antibiotics12010059. [PMID: 36671260 PMCID: PMC9854499 DOI: 10.3390/antibiotics12010059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/14/2022] [Accepted: 12/20/2022] [Indexed: 01/01/2023] Open
Abstract
In this study, we report the performance improvement of wound dressings by covering them with magnetite-based nanostructured coatings. The magnetite nanoparticles (Fe3O4 NPs) were functionalized with Nigella sativa (N. sativa) powder/essential oil and dicloxacillin and were synthesized as coatings by matrix assisted pulsed laser evaporation (MAPLE). The expected effects of this combination of materials are: (i) to reduce microbial contamination, and (ii) to promote rapid wound healing. The crystalline nature of core/shell Fe3O4 NPs and coatings was determined by X-ray diffraction (XRD). Differential Scanning Calorimetry (DSC) and Thermo Gravimetric Analysis (TGA) have been coupled to investigate the stability and thermal degradation of core/shell nanoparticle components. The coatings' morphology was examined by scanning electron microscopy (SEM). The distribution of chemical elements and functional groups in the resulting coatings was evidenced by Fourier transform infrared (FTIR) spectrometry. In order to simulate the interaction between wound dressings and epithelial tissues and to evaluate the drug release in time, the samples were immersed in simulated body fluid (SBF) and investigated after different durations of time. The antimicrobial effect was evaluated in planktonic (free-floating) and attached (biofilms) bacteria models. The biocompatibility and regenerative properties of the nanostructured coatings were evaluated in vitro, at cellular, biochemical, and the molecular level. The obtained results show that magnetite-based nanostructured coatings functionalized with N. sativa and dicloxacillin are biocompatible and show an enhanced antimicrobial effect against Gram positive and Gram negative opportunistic bacteria.
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Kashid S, Suttee A, Kadam P, Khatik GL, Kasarla R. An In- Silico Studies for Immunomodulatory Potential of Phytoconstituents from a Naturally Occurring Herb Nigella Sativa. PHARMACOPHORE 2022. [DOI: 10.51847/e6ckqdrhe4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Dalli M, Bekkouch O, Azizi SE, Azghar A, Gseyra N, Kim B. Nigella sativa L. Phytochemistry and Pharmacological Activities: A Review (2019-2021). Biomolecules 2021; 12:20. [PMID: 35053168 PMCID: PMC8773974 DOI: 10.3390/biom12010020] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2021] [Revised: 12/16/2021] [Accepted: 12/20/2021] [Indexed: 12/23/2022] Open
Abstract
Medicinal and aromatic plants are mainly characterized by the presence of different bioactive compounds which exhibit various therapeutic activities. In order to investigate the different pharmacological properties of different Nigella sativa extracts, a multitude of research articles published in the period between 2019 and 2021 were obtained from different databases (Scopus, Science Direct, PubMed, and Web of Science), and then explored and analyzed. The analysis of the collected articles allows us to classify the phytochemicals and the pharmacological activities through their underlying molecular mechanisms, as well as to explore the pharmacological activities exhibited by several identified compounds in Nigella sativa which allow a better understanding, and better elucidation, of the bioactive compounds responsible for the pharmacological effects. Also shown are the existence of other bioactive compounds that are still unexplored and could be of great interest. This review could be taken as a guide for future studies in the field.
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Affiliation(s)
- Mohammed Dalli
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health, Faculty of Sciences, University Mohammed the First, P.O. Box 524, 60000 Oujda, Morocco; (O.B.); (S.-e.A.); (A.A.); (N.G.)
| | - Oussama Bekkouch
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health, Faculty of Sciences, University Mohammed the First, P.O. Box 524, 60000 Oujda, Morocco; (O.B.); (S.-e.A.); (A.A.); (N.G.)
| | - Salah-eddine Azizi
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health, Faculty of Sciences, University Mohammed the First, P.O. Box 524, 60000 Oujda, Morocco; (O.B.); (S.-e.A.); (A.A.); (N.G.)
| | - Ali Azghar
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health, Faculty of Sciences, University Mohammed the First, P.O. Box 524, 60000 Oujda, Morocco; (O.B.); (S.-e.A.); (A.A.); (N.G.)
| | - Nadia Gseyra
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology and Health, Faculty of Sciences, University Mohammed the First, P.O. Box 524, 60000 Oujda, Morocco; (O.B.); (S.-e.A.); (A.A.); (N.G.)
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul 02447, Korea
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