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Razavi SZ, Saljoughi E, Mousavi SM, Matin MM. Polycaprolactone/cress seed mucilage based bilayer antibacterial films containing ZnO nanoparticles with superabsorbent property for the treatment of exuding wounds. Int J Biol Macromol 2024; 256:128090. [PMID: 37979764 DOI: 10.1016/j.ijbiomac.2023.128090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 11/20/2023]
Abstract
In this research, a novel double-layer film based on polycaprolactone and cress seed mucilage containing zinc oxide nanoparticles (0.5-2 %) was synthesized using solution casting technique, as an interactive multi-functional wound dressing. The bilayer films were characterized by measuring moisture content, contact angle parameter, porosity, water vapor transmission rate (WVTR), color attributes and opacity, swelling, degradation, mechanical properties, cell viability, and antimicrobial activity, as well as using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). The results indicated that the film containing 1.5 % zinc oxide nanoparticles had the best performance, with high swelling ability (3600 %) and 25 % degradation within 24 h of placement in a wound simulator solution. Its mechanical properties, including tensile strength and elongation at break, were 9 MPa and 5.53 %, respectively. In investigating the antimicrobial activity of the optimal film against Escherichia coli and Staphylococcus aureus, the diameter of the inhibition zone was observed to be 39.33 and 42 mm, respectively. Moreover, increasing the number of ZnO-NPs hindered the growth of NIH/3T3 cells, but the 1.5 % ZnO-NP loaded film showed a high percentage of cell viability in 1 day (90 %) and 3 days (93 %), which is suitable for biomedical applications.
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Affiliation(s)
- Seyedeh Zeynab Razavi
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ehsan Saljoughi
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Seyed Mahmoud Mousavi
- Chemical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran; Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
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Radu ER, Pandele AM, Tuncel C, Miculescu F, Voicu SI. Preparation and Characterization of Chitosan/LDH Composite Membranes for Drug Delivery Application. MEMBRANES 2023; 13:179. [PMID: 36837682 PMCID: PMC9965179 DOI: 10.3390/membranes13020179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
In this study, composite membranes based on chitosan (CS), layered double hydroxide (LDH), and diclofenac were prepared via dispersing of LDH and diclofenac (DCF) in the chitosan matrix for gradual delivery of diclofenac sodium. The effect of using LDH in composites was compared to chitosan loaded with diclofenac membrane. LDH was added in order to develop a system with a long release of diclofenac sodium, which is used in inflammatory conditions as an anti-inflammatory drug. The prepared composite membranes were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), Scanning Electron Microscope Analysis (SEM), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric Analysis (TGA) and UV-Vis Spectroscopy. The results of the FTIR and XPS analyses confirmed the obtaining of the composite membrane and the efficient incorporation of diclofenac. It was observed that the addition of LDH can increase the thermal stability of the composite membrane and favors the gradual release of diclofenac, highlighted by UV-Vis spectra that showed a gradual release in the first 48 h. In conclusion, the composite membrane based on CS-LDH can be used in potential drug delivery application.
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Affiliation(s)
- Elena-Ruxandra Radu
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Andreea Madalina Pandele
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Cristina Tuncel
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
| | - Florin Miculescu
- Department of Metallic Materials Science, Physical Metallurgy, University Politehnica of Bucharest, 313 Splaiul Independentei, J Building, 060042 Bucharest, Romania
| | - Stefan Ioan Voicu
- Department of Analytical Chemistry and Environmental Engineering, Faculty of Chemical Engineering and Biotechnologies University Politehnica of Bucharest, 011061 Bucharest, Romania
- Advanced Polymers Materials Group, University Politehnica of Bucharest, 011061 Bucharest, Romania
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Li T, Qin Z, Wang D, Xia X, Zhou X, Hu G. Coenzyme self-sufficiency system-recent advances in microbial production of high-value chemical phenyllactic acid. World J Microbiol Biotechnol 2022; 39:36. [PMID: 36472665 DOI: 10.1007/s11274-022-03480-5] [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: 09/23/2022] [Accepted: 11/21/2022] [Indexed: 12/12/2022]
Abstract
Phenyllactic acid (PLA), a natural antimicrobial substance, has many potential applications in the food, animal feed, pharmaceutical and cosmetic industries. However, its production is limited by the complex reaction steps involved in its chemical synthesis. Through advances in metabolic engineering and synthetic biology strategies, enzymatic or whole-cell catalysis was developed as an alternative method for PLA production. Herein, we review recent developments in metabolic engineering and synthetic biology strategies that promote the microbial production of high-value PLA. Specially, the advantages and disadvantages of the using of the three kinds of substrates, which includes phenylpyruvate, phenylalanine and glucose as starting materials by natural or engineered microbes is summarized. Notably, the bio-conversion of PLA often requires the consumption of expensive coenzyme NADH. To overcome the issues of NADH regeneration, efficiently internal cofactor regeneration systems constructed by co-expressing different enzyme combinations composed of lactate dehydrogenase with others for enhancing the PLA production, as well as their possible improvements, are discussed. In particular, the construction of fusion proteins with different linkers can achieve higher PLA yield and more efficient cofactor regeneration than that of multi-enzyme co-expression. Overall, this review provides a comprehensive overview of PLA biosynthesis pathways and strategies for increasing PLA yield through biotechnology, providing future directions for the large-scale commercial production of PLA and the expansion of downstream applications.
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Affiliation(s)
- Tinglan Li
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, P. R. China
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, P. R. China
| | - Zhao Qin
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, P. R. China
| | - Dan Wang
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, P. R. China.
- State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing, P. R. China.
| | - Xue Xia
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, P. R. China
| | - Xiaojie Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, P. R. China
| | - Ge Hu
- School of Chemistry and Chemical Engineering, Chongqing University, 400044, Chongqing, P. R. China
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Javaid A, Jalalah M, Safdar R, Khaliq Z, Qadir MB, Zulfiqar S, Ahmad A, Satti AN, Ali A, Faisal M, Alsareii SA, Harraz FA. Ginger Loaded Polyethylene Oxide Electrospun Nanomembrane: Rheological and Antimicrobial Attributes. MEMBRANES 2022; 12:membranes12111148. [PMID: 36422140 PMCID: PMC9696929 DOI: 10.3390/membranes12111148] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/01/2022] [Accepted: 11/08/2022] [Indexed: 05/29/2023]
Abstract
Synthetic antibiotics have captured the market in recent years, but the side effects of these products are life-threatening. In recent times, researchers have focused their research on natural-based products such as natural herbal oils, which are eco-friendly, biocompatible, biodegradable, and antibacterial. In this study, polyethylene oxide (PEO) and aqueous ginger extract (GE) were electrospun to produce novel antibacterial nanomembrane sheets as a function of PEO and GE concentrations. A GE average particle size of 91.16 nm was achieved with an extensive filtration process, inferring their incorporation in the PEO nanofibres. The presence of the GE was confirmed by Fourier transform infrared spectroscopy (FTIR) through peaks of phenol and aromatic groups. The viscoelastic properties of PEO/GE solutions were analysed in terms of PEO and GE concentrations. Increasing PEO and GE concentrations increased the solution's viscosity. The dynamic viscosity of 3% was not changed with increasing shear rate, indicating Newtonian fluid behaviour. The dynamic viscosity of 4 and 5 wt% PEO/GE solutions containing 10% GE increased exponentially compared to 3 wt%. In addition, the shear thinning behaviour was observed over a frequency range of 0.05 to 100 rad/s. Scanning Electron Microscopy (SEM) analysis also specified an increase in the nanofibre's diameter with increasing PEO concentration, while SEM images displayed smooth morphology with beadless nanofibres at different PEO/GE concentrations. In addition, PEO/GE nanomembranes inhibited the growth of Staphylococcus aureus, as presented by qualitative antibacterial results. The extent of PEO/GE nanomembrane's antibacterial activity was further investigated by the agar dilution method, which inhibited the 98.79% Staphylococcus aureus population at 30% GE concentration.
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Affiliation(s)
- Anum Javaid
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Electrical Engineering, College of Engineering, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Rimsha Safdar
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - Zubair Khaliq
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - Muhammad Bilal Qadir
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Sumra Zulfiqar
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - Adnan Ahmad
- Department of Textile Engineering, National Textile University, Faisalabad 37610, Pakistan
| | - Aamir Naseem Satti
- U.S.-PAKISTAN Center for Advanced Studies in Energy (USPCASE), National University of Science and Technology, Islamabad 44000, Pakistan
| | - Aiman Ali
- Department of Materials, National Textile University, Faisalabad 37610, Pakistan
| | - M. Faisal
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - S. A. Alsareii
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Surgery, College of Medicine, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Farid A. Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts, Sharurah, Najran University, Sharurah 68342, Saudi Arabia
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Preparation of Cotton-Zinc Composites by Magnetron Sputtering Metallization and Evaluation of their Antimicrobial Properties and Cytotoxicity. MATERIALS 2022; 15:ma15082746. [PMID: 35454445 PMCID: PMC9026216 DOI: 10.3390/ma15082746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 01/27/2023]
Abstract
The aim of this investigation was to evaluate the biological properties of cotton-zinc composites. A coating of zinc (Zn) on a cotton fabric was successfully obtained by a DC magnetron sputtering system using a metallic Zn target (99.9%). The new composite was characterized using scanning electron microscopy/energy-dispersive X-ray spectroscopy (SEM/EDS), UV/Vis transmittance, and atomic absorption spectrometry with flame excitation (FAAS). The composite was tested for microbial activity against colonies of Gram-positive (Staphylococcus aureus) and Gram-negative (Escherichia coli) bacteria and antifungal activity against Aspergillus niger and Chaetomium globosum fungal mold species as model microorganisms. Cytotoxicity screening of the tested modified material was carried out on BALB/3T3 clone mouse fibroblasts. The SEM/EDS and FAAS tests showed good uniformity of zinc content on a large surface of the composite. The conducted research showed the possibility of using the magnetron sputtering technique as a zero-waste method for producing antimicrobial textile composites.
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