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Zhang M, Dop RA, Zhang H. Polydopamine-Coated Polymer Nanofibers for In Situ Protein Loading and Controlled Release. ACS OMEGA 2024; 9:14465-14474. [PMID: 38559971 PMCID: PMC10976389 DOI: 10.1021/acsomega.4c00263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 04/04/2024]
Abstract
Nanofibrous polymeric materials, combined with protein therapeutics, play a significant role in biomedical and pharmaceutical applications. However, the upload of proteins into nanofibers with a high yield and controlled release has been a challenging issue. Here, we report the in situ loading of a model protein (bovine serum albumin) into hydrophilic poly(vinyl alcohol) nanofibers via ice-templating, with a 100% protein drug loading efficiency. These protein-loaded nanofibers were further coated by polydopamine in order to improve the nanofiber stability and achieve a controlled protein release. The mass ratio between poly(vinyl alcohol) and bovine serum albumin influenced the percentage of proteins in composite nanofibers and fiber morphology. More particles and less nanofibers were formed with an increasing percentage of bovine serum albumin. By varying the coating conditions, it was possible to produce a uniform polydopamine coating with tunable thickness, which acted as an additional barrier to reduce burst release and achieve a more sustained release profile.
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Affiliation(s)
- Meina Zhang
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K.
| | - Romy A. Dop
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K.
- Department
of Clinical Infection, Microbiology and Immunology, Institute of Infection,
Veterinary and Ecological Sciences, University
of Liverpool, Liverpool L69 7ZD, U.K.
| | - Haifei Zhang
- Department
of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD, U.K.
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2
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Rashid AB, Haque M, Islam SMM, Uddin Labib KR. Nanotechnology-enhanced fiber-reinforced polymer composites: Recent advancements on processing techniques and applications. Heliyon 2024; 10:e24692. [PMID: 38298690 PMCID: PMC10828705 DOI: 10.1016/j.heliyon.2024.e24692] [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: 10/19/2023] [Revised: 12/26/2023] [Accepted: 01/12/2024] [Indexed: 02/02/2024] Open
Abstract
Incorporating nanoparticles can significantly improve the performance and functionality of fiber-reinforced polymer (FRP) composites. Different techniques exist for processing, testing, and implementing nanocomposites in various industries. Depending on these factors, these materials can be tailored to suit the specific applications of the automotive and aerospace industries, defence industries, biomedical and energy sectors etc. Nanotechnology offers several potential benefits for composites, including improved mechanical properties, surface modification, and sensing capabilities. This paper discusses the different types of nanoparticles, nanofibers, and nano-coating that can be used for reinforcement, surface modification, and property enhancement in FRP composites. It also examines the challenges associated with incorporating nanotechnology into composites and provides recommendations for potential opportunities in future work. This study is intended to offer a comprehensive understanding of the current research on using nanotechnology in FRP composites and its potential impact on the composites industry.
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Affiliation(s)
- Adib Bin Rashid
- Department of Industrial Production Engineering, Military Institute of Science and Technology (MIST), Dhaka-1216, Bangladesh
| | - Mahima Haque
- Department of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka-1216, Bangladesh
| | - S M Mohaimenul Islam
- Department of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka-1216, Bangladesh
| | - K.M. Rafi Uddin Labib
- Department of Aeronautical Engineering, Military Institute of Science and Technology (MIST), Dhaka-1216, Bangladesh
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3
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Permyakova ES, Solovieva AO, Sitnikova N, Kiryukhantsev-Korneev PV, Kutzhanov MK, Sheveyko AN, Ignatov SG, Slukin PV, Shtansky DV, Manakhov AM. Polycaprolactone Nanofibers Functionalized by Fibronectin/Gentamicin and Implanted Silver for Enhanced Antibacterial Properties, Cell Adhesion, and Proliferation. Polymers (Basel) 2024; 16:261. [PMID: 38257060 PMCID: PMC10819432 DOI: 10.3390/polym16020261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/06/2024] [Accepted: 01/07/2024] [Indexed: 01/24/2024] Open
Abstract
Novel nanomaterials used for wound healing should have many beneficial properties, including high biological and antibacterial activity. Immobilization of proteins can stimulate cell migration and viability, and implanted Ag ions provide an antimicrobial effect. However, the ion implantation method, often used to introduce a bactericidal element into the surface, can lead to the degradation of vital proteins. To analyze the surface structure of nanofibers coated with a layer of plasma COOH polymer, fibronectin/gentamicin, and implanted with Ag ions, a new X-ray photoelectron spectroscopy (XPS) fitting method is used for the first time, allowing for a quantitative assessment of surface biomolecules. The results demonstrated noticeable changes in the composition of fibronectin- and gentamicin-modified nanofibers upon the introduction of Ag ions. Approximately 60% of the surface chemistry has changed, mainly due to an increase in hydrocarbon content and the introduction of up to 0.3 at.% Ag. Despite the significant degradation of fibronectin molecules, the biological activity of Ag-implanted nanofibers remained high, which is explained by the positive effect of Ag ions inducing the generation of reactive oxygen species. The PCL nanofibers with immobilized gentamicin and implanted silver ions exhibited very significant antipathogen activity to a wide range of Gram-positive and Gram-negative strains. Thus, the results of this work not only make a significant contribution to the development of new hybrid fiber materials for wound dressings but also demonstrate the capabilities of a new XPS fitting methodology for quantitative analysis of surface-related proteins and antibiotics.
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Affiliation(s)
- Elizaveta S. Permyakova
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
| | - Anastasiya O. Solovieva
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova St., Novosibirsk 630060, Russia; (A.O.S.); (N.S.)
| | - Natalia Sitnikova
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova St., Novosibirsk 630060, Russia; (A.O.S.); (N.S.)
| | - Philipp V. Kiryukhantsev-Korneev
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
| | - Magzhan K. Kutzhanov
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
| | - Alexander N. Sheveyko
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
| | - Sergey G. Ignatov
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia
- Lomonosov Moscow State University, GSP-1, 1 Leninskiye Gory, Moscow 119991, Russia
| | - Pavel V. Slukin
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
- State Research Center for Applied Microbiology and Biotechnology, Obolensk 142279, Russia
| | - Dmitry V. Shtansky
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
| | - Anton M. Manakhov
- Research Laboratory “Inorganic Nanomaterials”, National University of Science and Technology “MISIS”, Moscow 119049, Russia; (E.S.P.); (P.V.K.-K.); (M.K.K.); (A.N.S.); (S.G.I.); (P.V.S.); (D.V.S.)
- Research Institute of Clinical and Experimental Lymphology—Branch of the ICG SB RAS, 2 Timakova St., Novosibirsk 630060, Russia; (A.O.S.); (N.S.)
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4
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Mohammadi A, Kerdabadi ZG, Ayati Najafabadi SA, Pourali A, Nejaddehbashi F, Azarbarz N, Kahkesh KH, Ebrahimibagha M. A high-efficient antibacterial and biocompatible polyurethane film with Ag@rGO nanostructures prepared by microwave-assisted method: Physicochemical and dermal wound healing evaluation. Heliyon 2023; 9:e21783. [PMID: 38027980 PMCID: PMC10660042 DOI: 10.1016/j.heliyon.2023.e21783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 10/22/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Wound infections are a significant issue that can hinder the wound healing process. One way to address this problem is by enhancing the antibacterial activity of wound dressings. Accordingly, this work focuses on developing a castor-oil-based antibacterial polyurethane nanocomposite film impregnated with silver nanoparticles (AgNPs) decorated on the surface of reduced graphene oxide (rGO) nanostructures (Ag@rGO). To this aim, rGOs act as a platform to stabilize AgNPs and improve their bioavailability and dispersion quality within the PU film. The microwave-assisted synthesis of Ag@rGO nanohybrids was proved by FTIR, XRD, TGA, FE-SEM, EDS, and TEM analyses. Compared to PU/GO, the effect of Ag@rGO nanohybrids on thermo-mechanical features, morphology, antibacterial activity, cytocompatibility, and in vivo wound healing was assessed. SEM photomicrographs revealed the enhanced dispersion of Ag@rGO nanohybrids compared to GO nanosheets. Besides, according to XRD results, PU/Ag@rGO nanocomposite film demonstrated higher microphase mixing, which could be due to the finely dispersed Ag@rGO nanostructures interrupting the hydrogen bonding interactions in the hard segments. Moreover, PU/Ag@rGO nanocomposite showed excellent antibacterial behavior with completely killing E. coli and S. aureus bacteria. In vitro and in vivo wound healing studies displayed PU/Ag@rGO film effectively stimulated fibroblast cells proliferation, migration and re-epithelialization. However, the prepared antibacterial PU/Ag@rGO nanocomposite film has the potential to be used as a biomaterial for dermal wound healing applications.
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Affiliation(s)
- Abbas Mohammadi
- Department of Chemistry, University of Isfahan, Isfahan 81746-73441, I.R. Iran
| | | | - Seyed Ahmad Ayati Najafabadi
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Alireza Pourali
- School of Chemistry, Damghan University, 36716-41167 Damghan, Iran
| | - Fereshteh Nejaddehbashi
- Cellular and Molecular Research Center, Medical Basic Sciences Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Nastaran Azarbarz
- Cellular and Molecular Research Center, Medical Basic Sciences Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Kaveh Hatami Kahkesh
- Department of Basic Medical Science, Faculty of Veterinary Medicine, Shahrekord University, Shahrekord, Iran
| | - Mehrnoosh Ebrahimibagha
- Tissue Engineering and Regenerative Medicine Institute, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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5
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Pandey G, Pandey P, Arya DK, Kanaujiya S, Deepak Kapoor D, Gupta RK, Ranjan S, Chidambaram K, Manickam B, Rajinikanth P. Multilayered nanofibrous scaffold of Polyvinyl alcohol/gelatin/poly (lactic-co-glycolic acid) enriched with hemostatic/antibacterial agents for rapid acute hemostatic wound healing. Int J Pharm 2023; 638:122918. [PMID: 37030638 DOI: 10.1016/j.ijpharm.2023.122918] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 04/09/2023]
Abstract
Electrospun nanofibers scaffolds show promising potential in wound healing applications. This work aims to fabricate nanofibrous wound dressing as a novel approach for a topical drug delivery system. Herein, the electrospinning technique is used to design and fabricate bioabsorbable nanofibrous scaffolds of Polyvinyl alcohol/gelatin/poly (lactic-co-glycolic acid) enriched with thrombin (TMB) as hemostatic agent and vancomycin (VCM) as anti-bacterial agent for a multifunctional platform to control excessive blood loss, inhibit bacterial growth and enhance wound healing. SEM, FTIR, XRD, in vitro drug release, antimicrobial studies, biofilm, cell viability assay, and in vivo study in a rat model were used to assess nanofiber's structural, mechanical, and biological aspects. SEM images confirms the diameter of nanofibers which falls within the range from 150 to 300 nm for all the batches. Excellent swelling index data makes it suitable to absorb wound exudates. In-vitro drug release data shows sustained release behavior of nanofiber. Nanofibers scaffolds showed biomimetic behavior and excellent biocompatibility. Moreover, scaffolds exhibited excellent antimicrobial and biofilm activity against Staphylococcus aureus. Nanofibrous scaffolds showed less bleeding time, rapid blood coagulation, and excellent wound closure in a rat model. ELISA study demonstrated the decreasing level of inflammatory markers, such as TNF-α, IL1β, and IL-6, making formulation promising for hemostatic wound healing applications. Finally, the study concludes that nanofibrous scaffolds loaded with TMB and VCM have promising potential as a dressing material for hemostatic wound healing applications.
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6
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Minsart M, Deroose N, Parmentier L, Van Vlierberghe S, Mignon A, Dubruel P. Fine-Tuning the Endcap Chemistry of Acrylated Poly(Ethylene Glycol)-Based Hydrogels for Efficient Burn Wound Exudate Management. Macromol Biosci 2023; 23:e2200341. [PMID: 36404646 DOI: 10.1002/mabi.202200341] [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: 08/16/2022] [Revised: 11/04/2022] [Indexed: 11/22/2022]
Abstract
Most commercial dressings with moderate to high exudate uptake capacities are mechanically weaker and/or require a secondary dressing. The current research article focuses on the development of hydrogel-based wound dressings combining mechanical strength with high exudate absorption capacities using acrylate-endcapped urethane-based precursors (AUPs). AUPs with varying poly(ethylene glycol) backbone molar masses (10 and 20 kg mol-1 ) and endcap chemistries are successfully synthesized in toluene, subsequently processed into UV-cured hydrogel sheets and are benchmarked against several commercial wound dressings (Hydrosorb, Kaltostat, and Mepilex Ag). The AUP materials show high gel fractions (>90%) together with strong swelling degrees in water, phosphate buffered saline and simulated wound fluid (12.7-19.6 g g-1 ), as well as tunable mechanical properties (e.g., Young's modulus: 0.026-0.061 MPa). The AUPs have significantly (p < 0.05) higher swelling degrees than the tested commercial dressings, while also being mechanically resistant. The elasticity of the synthesized materials leads to an increased resistance against fatigue. The di- and hexa-acrylated AUPs show excellent in vitro biocompatibility against human foreskin fibroblasts, as evidenced by indirect MTS assays and live/dead cell assays. In conclusion, the processed AUP materials demonstrate high potential for wound healing application and can even compete with commercially available dressings.
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Affiliation(s)
- Manon Minsart
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, Building S4-bis, Ghent, 9000, Belgium
| | - Nicolas Deroose
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, Building S4-bis, Ghent, 9000, Belgium
| | - Laurens Parmentier
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, Building S4-bis, Ghent, 9000, Belgium
| | - Sandra Van Vlierberghe
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, Building S4-bis, Ghent, 9000, Belgium
| | - Arn Mignon
- Smart Polymeric Biomaterials Research Group, Biomaterials and Tissue Engineering (SIEM) @ Campus Group T Leuven, Andreas Vesaliusstraat 13, Leuven, 3000, Belgium
| | - Peter Dubruel
- Polymer Chemistry & Biomaterials Research Group, Centre of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, Building S4-bis, Ghent, 9000, Belgium
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7
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Sasmal PK, Ganguly S. Polymer in hemostasis and follow‐up wound healing. J Appl Polym Sci 2023. [DOI: 10.1002/app.53559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Somenath Ganguly
- Department of Chemical Engineering Indian Institute of Technology Kharagpur India
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8
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Hasan MM, Shahid MA. PVA, licorice, and collagen (PLC) based hybrid bio-nano scaffold for wound healing application. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2023:1-20. [PMID: 36576335 DOI: 10.1080/09205063.2022.2163454] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Nanofibrous scaffolds with core-shell structures can deliver bioactive agents, augment mechanical properties, provide a high surface area to volume ratio, and most importantly mimic the structure of extracellular matrix (ECM) which enables to maintain of a moist environment, elimination of excess exudates and provide antibacterial properties to impede infections. This study has developed PVA, licorice, and collagen (PLC) based hybrid bio-nano scaffold by co-axial electrospinning technique for enhancing wound closure. The core layer was made by PVA & licorice extract and shell layer was created by collagen & licorice extract solution. The morphology, moisture management properties, presence of constituent polymer, thermal behavior, and mechanical properties of the developed samples were characterized by FE-SEM, moisture management tester (MMT), FT/IR, TGA, tensile testing machine. Furthermore, in vitro antibacterial assay was conducted by Kirby-Bauer disk diffusion method for investigating antibacterial properties and an in-vivo wound healing assessment was employed by observing the wound healing. Then FE-SEM images showed the lowest and highest average diameters 119 nm and 154 nm respectively, FT/IR spectra ensured the presence of all materials in the sample. Furthermore, the moisture management test result demonstrated slow absorbing and slow drying scaffolds which emphasized the eligibility of the sample to be an ideal candidate for wound healing. Moreover, the minimum and maximum zones of inhibition (ZOI) were found 7 mm and 8 mm against the bacteria Staphylococcus aureus. Finally, an in vivo wound healing assessment revealed a better healing performance of the developed samples after 10 days.
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Affiliation(s)
- Md Mehedi Hasan
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh
| | - Md Abdus Shahid
- Department of Textile Engineering, Dhaka University of Engineering and Technology, Gazipur, Bangladesh
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9
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Anjum S, Chaudhary R, Khan AK, Hashim M, Anjum I, Hano C, Abbasi BH. Light-emitting diode (LED)-directed green synthesis of silver nanoparticles and evaluation of their multifaceted clinical and biological activities. RSC Adv 2022; 12:22266-22284. [PMID: 36043104 PMCID: PMC9364226 DOI: 10.1039/d2ra03503k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 07/25/2022] [Indexed: 11/21/2022] Open
Abstract
The trend of using plant extracts for the synthesis of nanoparticles has increased in recent years due to environmental safety, low cost, simplicity and sustainability of the green route. Moreover, the morphology of NPs can be fine-tuned by applying abiotic factors such as LEDs, which enhance the bio-reduction of the precursor salt and excite phytochemicals during their green synthesis. Considering this, in present study, the green synthesis of AgNPs was carried out using Dalbergia sissoo leaf extract under the illumination of red, green, blue, yellow and white LEDs. The phytochemical profile of the leaf extract in terms of total phenolic and flavonoid content was responsible for the effective synthesis of AgNPs, where alcohols and phenols were mainly involved in the capping and bio-reduction of the NPs. Moreover, the XRD data showed the face center cubic crystalline nature of the AgNPs with the interesting finding that the LEDs helped to reduce the size of the AgNPs significantly. Among the samples, Y-DS-AgNPs (34.63 nm) were the smallest in size, with the control having a size of 87.35 nm. The LEDs not only reduced the size of the AgNPs but also resulted in the synthesis of non-agglomerated AgNPs with different shapes including spherical, triangular, and hexagonal compared to the mixed-shape control AgNPs, as shown by the SEM analysis. These LED-directed AgNPs showed extraordinary therapeutic potential especially B-DS-AgNPs, which exhibited the highest anti-oxidant, anti-glycation and anti-bacterial activities. Alternatively, Y-DS-AgNPs were the most cytotoxic towards HepG2 cells, inducing intracellular ROS/RNS production, accompanied by a disruption in the mitochondrial membrane potential, caspase-3 gene activation and induction of caspase-3/7 activity. Lastly, AgNPs showed mild toxicity towards brine shrimp and moderately hemolyzed hRBCs, showing their biosafe nature. Here, we conclude that external factors such as LEDs are effective in controlling the morphology of AgNPs, which further enhanced their therapeutic efficacy.
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Affiliation(s)
- Sumaira Anjum
- Department of Biotechnology, Kinnaird College for Women 92-Jail Road Lahore-54000 Pakistan +92-3006957038
| | - Rimsha Chaudhary
- Department of Biotechnology, Kinnaird College for Women 92-Jail Road Lahore-54000 Pakistan +92-3006957038
| | - Amna Komal Khan
- Department of Biotechnology, Kinnaird College for Women 92-Jail Road Lahore-54000 Pakistan +92-3006957038
| | - Mariam Hashim
- Department of Biotechnology, Kinnaird College for Women 92-Jail Road Lahore-54000 Pakistan +92-3006957038
| | - Iram Anjum
- Department of Biotechnology, Kinnaird College for Women 92-Jail Road Lahore-54000 Pakistan +92-3006957038
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, University of Orleans 45067 Orléans CEDEX 2 France
| | - Bilal Haider Abbasi
- Department of Biotechnology, Quaid-i-Azam University Islamabad-45320 Pakistan
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10
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Electrospun kaolin-loaded chitosan/PEO nanofibers for rapid hemostasis and accelerated wound healing. Int J Biol Macromol 2022; 217:998-1011. [PMID: 35907464 DOI: 10.1016/j.ijbiomac.2022.07.186] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/19/2022] [Accepted: 07/23/2022] [Indexed: 11/20/2022]
Abstract
Development of chitosan-based hemostatic products and their application in wound healing has always been a research hotspot in the field of emergency treatment and biomedicine. In this study, the classic hemostatic chitosan and the most well-known inorganic hemostatic agent-kaolin were tried to combine to form a more excellent dressing. Together with the aid of non-toxic, harmless and good hydrophilic polyethylene oxide, chitosan/polyethylene oxide (PEO)/kaolin nanofiber membranes (CPKs) were prepared by electrospinning technology. Such membranes exhibited adjustable mechanical properties and good biocompatibility. Furthermore, a series of in vitro coagulation experiments proved that CPKs with 10 % ratio of kaolin (CPK10) has excellent hemostatic ability. Especially, in the whole blood coagulation time (WBCT) assay, the hemostatic time of CPK10 (43 ± 1.4 s) was significantly lower than that of chitosan/polyethylene oxide (CPK0) nanofiber membrane (61 ± 2.2 s) and QuikClot® Combat Gauze (55.7 ± 1.2 s). The further rat liver injury test reconfirmed that CPK10 can stop bleeding better and faster compared to other groups. In addition, CPKs could promote back wound healing in rats within 14 days without significant inflammatory response. This safe and effective hemostatic CPKs is expected to be a promising candidate hemostat in pre-hospital medical care.
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11
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Zheng L, Gu B, Li S, Luo B, Wen Y, Chen M, Li X, Zha Z, Zhang HT, Wang X. An antibacterial hemostatic AuNPs@corn stalk/chitin composite sponge with shape recovery for promoting wound healing. Carbohydr Polym 2022; 296:119924. [DOI: 10.1016/j.carbpol.2022.119924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 07/07/2022] [Accepted: 07/23/2022] [Indexed: 11/02/2022]
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12
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Xiang J, Zhou L, Xie Y, Zhu Y, Xiao L, Chen Y, Zhou W, Chen D, Wang M, Cai L, Guo L. Mesh-like electrospun membrane loaded with atorvastatin facilitates cutaneous wound healing by promoting the paracrine function of mesenchymal stem cells. Stem Cell Res Ther 2022; 13:190. [PMID: 35526075 PMCID: PMC9080129 DOI: 10.1186/s13287-022-02865-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 04/01/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Functional electrospun membranes are promising dressings for promoting wound healing. However, their microstructure and drug loading capacity need further improvements. It is the first time to design a novel mesh-like electrospun fiber loaded with atorvastatin (ATV) and investigated its effects on paracrine secretion by bone marrow-derived mesenchymal stem cells (BMSCs) and wound healing in vivo. METHODS We fabricated a mesh-like electrospun membrane using a copper mesh receiver. The physical properties of the membranes were evaluated by SEM, FTIR spectroscopy, tensile strength analysis, and contrast angle test. Drug release was measured by plotting concentration as a function of time. We tested the effects of conditioned media (CM) derived from BMSCs on endothelial cell migration and angiogenesis. We used these BMSCs and performed RT-PCR and ELISA to evaluate the expressions of vascular endothelial growth factor (VEGF) and basic fibroblast growth factor (b-FGF) genes and proteins, respectively. The involvement of FAK and AKT mechanotransduction pathways in the regulation of BMSC secretion by material surface topography was also investigated. Furthermore, we established a rat model of wound healing, applied ATV-loaded mesh-like membranes (PCL/MAT) seeded with BMSCs on wounds, and assessed their efficacy for promoting wound healing. RESULTS FTIR spectroscopy revealed successful ATV loading in PCL/MAT. Compared with random electrospun fibers (PCL/R) and mesh-like electrospun fibers without drug load (PCL/M), PCL/MAT induced maximum promotion of human umbilical vein endothelial cell (HUVEC) migration. In the PCL/MAT group, the cell sheet scratches were nearly closed after 24 h. However, the cell sheet scratches remained open in other treatments at the same time point. The PCL/MAT promoted angiogenesis and led to the generation of longer tubes than the other treatments. Finally, the PCL/MAT induced maximum gene expression and protein secretion of VEGF and b-FGF. As for material surface topography effect on BMSCs, FAK and AKT signaling pathways were shown to participate in the modulation of MSC morphology and its paracrine function. In vivo, PCL/MAT seeded with BMSCs significantly accelerated healing and improved neovascularization and collagen reconstruction in the wound area compared to the other treatments. CONCLUSIONS The mesh-like topography of fibrous scaffolds combined with ATV release creates a unique microenvironment that promotes paracrine secretion of BMSCs, thereby accelerating wound healing. Hence, drug-loaded mesh-like electrospun membranes may be highly efficacious for wound healing and as artificial skin. It is a promising approach to solve the traumatic skin defect and accelerate recovery, which is essential to developing functional materials for future regenerative medicine.
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Affiliation(s)
- Jieyu Xiang
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Ling Zhou
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yuanlong Xie
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yufan Zhu
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Lingfei Xiao
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Yan Chen
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Wei Zhou
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Danyang Chen
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Min Wang
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China
| | - Lin Cai
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
| | - Liang Guo
- Department of Plastic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, 430071, China.
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AL-MOALEMI HAFEDHAHMED, IZWAN ABD RAZAK SAIFUL, BOHARI SITIPAULIENAMOHD. ELECTROSPUN SODIUM ALGINATE/POLY(ETHYLENE OXIDE) NANOFIBERS FOR WOUND HEALING APPLICATIONS: CHALLENGES AND FUTURE DIRECTIONS. CELLULOSE CHEMISTRY AND TECHNOLOGY 2022; 56:251-270. [DOI: 10.35812/cellulosechemtechnol.2022.56.23] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Alginate is an interesting natural biopolymer to be considered for biomedical applications due to its advantages and good biological properties. These biological properties make electrospun alginate nanofibers suitable for various uses in the biomedical field, such as wound healing dressings, drug delivery systems, or both. Unfortunately, the fabrication of alginate nanofibers by electrospinning is very challenging because of the high viscosity of the solution, high surface tension and rigidity in water due to hydrogen bonding, and also their diaxial linkages. This review presents an overview of the factors affecting the electrospinning process of sodium alginate/poly(ethylene oxide) (SA/PEO), the application of SA/PEO in drug delivery systems for wound healing applications, and the degradation and swelling properties of SA/PEO. The challenges and future directions of SA/PEO in the medical field are also discussed.
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Wu X, Sun Q, He S, Wu Y, Du S, Gong L, Yu J, Guo H. Ropivacaine inhibits wound healing by suppressing the proliferation and migration of keratinocytes via the PI3K/AKT/mTOR Pathway. BMC Anesthesiol 2022; 22:106. [PMID: 35428182 PMCID: PMC9011930 DOI: 10.1186/s12871-022-01646-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 04/06/2022] [Indexed: 11/26/2022] Open
Abstract
Background After surgery, millions of people suffer from delayed healing or wound dehiscence with subsequent severe complications, even death. Previous studies have reported that ropivacaine exhibits anti-proliferative and anti-migratory activities on numerous cells. Whether ropivacaine is able to influence the proliferation and migration of keratinocytes is still unclear. This study aimed to investigate the effect of ropivacaine on keratinocytes and its underlying molecular mechanism. Methods Adult male Sprague–Dawley rats were allocated to establish wound healing models with or without 0.75% ropivacaine treatment and assessed the epidermal thickness by HE staining. HaCaT cells were cultured to evaluate the effect of ropivacaine on wound healing. The cell proliferation, apoptosis status and migration were detected in vitro. Moreover, western blotting was used to examine expression to with PI3K/AKT/mTOR signaling pathways for molecular studies and the changes in inflammatory factors (IL-6, IL-10, TNF-α) were detected by ELISA. Results In the present study, we found that ropivacaine delayed wound closure in vivo. In vitro experiments, it was demonstrated that ropivacaine significantly inhibited the proliferation and migration of HaCaT cells via the suppression of PI3K/AKT/mTOR signaling pathway. Activation of PI3K/AKT/mTOR signaling pathway reversed the effects of ropivacaine on the proliferation and migration of HaCaT cells. Furthermore, ropivacaine contributed to the release of pro-inflammatory cytokines (IL-6 and TNF-α) and inhibited the secretion of anti-inflammatory cytokines of keratinocytes (IL-10). Conclusions Our research demonstrated that ropivacaine treatment showed a more decreased wound closure rate. Mechanistically, we found that ropivacaine suppressed the proliferation and migration of keratinocytes and altered the expression of cytokines by inhibiting PI3K/AKT/mTOR pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s12871-022-01646-0.
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Esmail R, Afshar A, Morteza M, Abolfazl A, Akhondi E. Synthesis of silver nanoparticles with high efficiency and stability by culture supernatant of Bacillus ROM6 isolated from Zarshouran gold mine and evaluating its antibacterial effects. BMC Microbiol 2022; 22:97. [PMID: 35410116 PMCID: PMC8996393 DOI: 10.1186/s12866-022-02490-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 03/11/2022] [Indexed: 11/16/2022] Open
Abstract
Background The use of bacteria to synthesize nanoparticles as an environment-friendly method has recently been considered by researchers. Bacteria residing in different mines have shown high potential in the synthesis of metal nanoparticles due to their compatibility with the environment. The aim of this study was to evaluate the ability of Zarshouran gold mine bacteria to synthesize silver nanoparticles and their antibacterial activity. Methods After isolation of mine bacteria and several screening steps, silver ion tolerant bacteria that were able to synthesize extracellular silver nanoparticles were isolated and the most suitable isolate was selected and sequenced. The characteristics, stability, and production efficiency of silver nanoparticles were evaluated using UV–vis spectrophotometry, DLS, TEM, FTIR, and X-ray diffraction analysis. Finally, the antibacterial effect of silver nanoparticles against pathogenic bacteria was investigated. Results Among the eight silver-tolerant bacteria, isolate No. 6 had high antibacterial activity and high potential in the synthesis and stabilization of silver nanoparticles. Therefore, this isolate was selected for the next experiments. The results of 16S rDNA sequencing showed that this isolate is related to Bacillus pumilus. We registered in the NCBI Bank called ROM6 with access number MW440543. The DLS and TEM analysis showed that silver nanoparticles produced by this isolate were most spherical with a size of less than 25 nm and were stable for at least 180 days. The efficiency at concentrations less than 0.9 g/l silver nitrate was over 90% and the minimum inhibition concentration of nanoparticles was determined against S. aureus, E. coli, P. aeruginosa, and A. baumannii ranging from 1.4 to 5.6 µg/ml. Conclusion We found that the bacteria residing in the gold mine have a high capacity for the synthesis of spherical and high stable silver nanoparticles with a strong antibacterial effect. Supplementary Information The online version contains supplementary material available at 10.1186/s12866-022-02490-5.
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Affiliation(s)
- Rostampour Esmail
- Department of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Alihosseini Afshar
- Department of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
| | - Milani Morteza
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran. .,Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Akbarzadeh Abolfazl
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ebrahim Akhondi
- Department of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran
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Ziauddin, Hussain T, Nazir A, Mahmood U, Hameed M, Ramakrishna S, Abid S. Nanoengineered therapeutic scaffolds for burn wound management. Curr Pharm Biotechnol 2022; 23:1417-1435. [PMID: 35352649 DOI: 10.2174/1389201023666220329162910] [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: 05/31/2021] [Revised: 10/05/2021] [Accepted: 11/19/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Wound healing is a complex process, and selecting an appropriate treatment is crucial and varies from one wound to another. Among injuries, burn wounds are more challenging to treat. Different dressings and scaffolds come into play when skin is injured. These scaffolds provide the optimum environment for wound healing. With the advancements of nanoengineering, scaffolds have been engineered to improve wound healing with lower fatality rates. OBJECTIVES Nanoengineered systems have emerged as one of the promising candidates for burn wound management. This review paper aims to provide an in-depth understanding of burn wounds and the role of nanoengineering in burn wound management. The advantages of nanoengineered scaffolds, their properties, and their proven effectiveness have been discussed. Nanoparticles and nanofibers-based nanoengineered therapeutic scaffolds provide optimum protection, infection management, and accelerated wound healing due to their unique characteristics. These scaffolds increase cell attachment and proliferation for desired results. RESULTS The literature review suggested that the utilization of nanoengineered scaffolds has accelerated burn wound healing. Nanofibers provide better cell attachment and proliferation among different nanoengineered scaffolds due to their 3D structure mimics the body's extracellular matrix. CONCLUSION With the application of these advanced nanoengineered scaffolds, better burn wound management is possible due to sustained drug delivery, better cell attachment, and an infection-free environment.
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Affiliation(s)
- Ziauddin
- Electrospun Materials & Polymeric Membranes Research Group, National Textile University, Pakistan
| | - Tanveer Hussain
- Electrospun Materials & Polymeric Membranes Research Group, National Textile University, Pakistan
| | - Ahsan Nazir
- Electrospun Materials & Polymeric Membranes Research Group, National Textile University, Pakistan
| | - Urwa Mahmood
- Electrospun Materials & Polymeric Membranes Research Group, National Textile University, Pakistan
| | - Misbah Hameed
- Department of Pharmaceutics, Faculty of pharmaceutical science, Government College University, Faisalabad, Pakistan
| | - Seeram Ramakrishna
- Center for Nanofibers & Nanotechnology (CNN), National University of Singapore (NUS), Singapore
| | - Sharjeel Abid
- Electrospun Materials & Polymeric Membranes Research Group, National Textile University, Pakistan
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Progress in the Development of Graphene-Based Biomaterials for Tissue Engineering and Regeneration. MATERIALS 2022; 15:ma15062164. [PMID: 35329615 PMCID: PMC8955908 DOI: 10.3390/ma15062164] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 12/16/2022]
Abstract
Over the last few decades, tissue engineering has become an important technology for repairing and rebuilding damaged tissues and organs. The scaffold plays an important role and has become a hot pot in the field of tissue engineering. It has sufficient mechanical and biochemical properties and simulates the structure and function of natural tissue to promote the growth of cells inward. Therefore, graphene-based nanomaterials (GBNs), such as graphene and graphene oxide (GO), have attracted wide attention in the field of biomedical tissue engineering because of their unique structure, large specific surface area, good photo-thermal effect, pH response and broad-spectrum antibacterial properties. In this review, the structure and properties of typical GBNs are summarized, the progress made in the development of GBNs in soft tissue engineering (including skin, muscle, nerve and blood vessel) are highlighted, the challenges and prospects of the application of GBNs in soft tissue engineering have prospected.
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Valachová K, El Meligy MA, Šoltés L. Hyaluronic acid and chitosan-based electrospun wound dressings: Problems and solutions. Int J Biol Macromol 2022; 206:74-91. [PMID: 35218807 DOI: 10.1016/j.ijbiomac.2022.02.117] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/16/2022] [Accepted: 02/18/2022] [Indexed: 11/05/2022]
Abstract
To date, available review papers related to the electrospinning of biopolymers including polysaccharides for wound healing were focused on summarizing the process conditions for two candidates, namely chitosan and hyaluronic acid. However, most reviews lack the discussion of problems of hyaluronan and chitosan electrospun nanofibers for wound dressing applications. For this reason, it is required to update information by providing a comprehensive overview of all factors which may play a role in the electrospinning of hyaluronic acid and chitosan for applications of wound dressings. This review summarizes the fabricated chitosan and hyaluronic acid electrospun nanofibers as wound dressings in the last years, including methods of preparations of nanofibers and challenges for the electrospinning of both pure chitosan and hyaluronic acid and strategies how to overcome the existing difficulties. Moreover, in this review the biological roles and mechanisms of chitosan and hyaluronic acid in the wound healing process are explained including the advantages of nanofibers for ideal wound management using the common solvents, copolymers enhancing spinning process, and the most biologically active incorporated substances thereby providing drug delivery in wound healing.
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Affiliation(s)
- Katarína Valachová
- Centre of Experimental Medicine of Slovak Academy of Sciences, Dúbravská cesta 9, 84104 Bratislava, Slovakia.
| | - Mahmoud Atya El Meligy
- Department of Chemistry, Polymer Research Group, Faculty of Science, University of Tanta, Tanta 31527, Egypt
| | - Ladislav Šoltés
- Centre of Experimental Medicine of Slovak Academy of Sciences, Dúbravská cesta 9, 84104 Bratislava, Slovakia
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Anjum S, Nawaz K, Ahmad B, Hano C, Abbasi BH. Green synthesis of biocompatible core–shell (Au–Ag) and hybrid (Au–ZnO and Ag–ZnO) bimetallic nanoparticles and evaluation of their potential antibacterial, antidiabetic, antiglycation and anticancer activities. RSC Adv 2022; 12:23845-23859. [PMID: 36093232 PMCID: PMC9396731 DOI: 10.1039/d2ra03196e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 08/16/2022] [Indexed: 11/21/2022] Open
Abstract
The fabrication of bimetallic nanoparticles (BNPs) using plant extracts is applauded since it is an environmentally and biologically safe method. In this research, Manilkara zapota leaf extract was utilized to bioreduce metal ions for the production of therapeutically important core–shell Au–Ag and hybrid (Au–ZnO and Ag–ZnO) BNPs. The phytochemical profiling of the leaf extract in terms of total phenolic and flavonoid content is attributed to its high free radical scavenging activity. FTIR data also supported the involvement of these phytochemicals (polyphenols, flavonoids, aromatic compounds and alkynes) in the synthesis of BNPs. Whereas, TEM and XRD showed the formation of small sized (16.57 nm) spherical shaped core–shell Au–Ag BNPs and ZnO nano-needles with spherical AuNPs (48.32 nm) and ZnO nano-rods with spherical AgNP (19.64 nm) hybrid BNPs. The biological activities of BNPs reinforced the fact that they show enhanced therapeutic efficacy as compared to their monometallic components. All BNPs showed comparable antibacterial activities as compared to standard tetracycline discs. While small sized Au–Ag BNPs were most effective in killing human hepato-cellular carcinoma cells (HepG2) in terms of lowest cell viability, highest intracellular ROS/RNS production, loss of mitochondrial membrane potential, induction of caspase-3 gene expression and enhanced caspase-3/7 activity. BNPs also effectively inhibited advanced glycation end products and carbohydrate digesting enzymes which can be used as a nano-medicine for aging and diabetes. The most important finding was the permissible biocompatibility of these BNPs towards brine shrimp larvae and human RBCs, which suggests their environmental and biological safety. This research study gives us insight into the promise of using a green route to synthesize commercially important BNPs with enhanced therapeutic efficacy as compared to conventional treatment options. Graphical demonstartion of the Manikara zapota-mediated biosynthesis of Bimetallic nanoparticles (BNPs) and evalution of their biological activities.![]()
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Affiliation(s)
- Sumaira Anjum
- Department of Biotechnology, Kinnaird College for Women, 92-Jail Road, Lahore-54000, Pakistan
| | - Khadija Nawaz
- Department of Biotechnology, Kinnaird College for Women, 92-Jail Road, Lahore-54000, Pakistan
| | - Bushra Ahmad
- Department of Biochemistry, Shaheed Benzair Bhutto Women University, Peshwar-25120, Pakistan
| | - Christophe Hano
- Laboratoire de Biologie des Ligneux et des Grandes Cultures, INRAE USC1328, University of Orleans, 45067 Orléans Cedex 2, France
| | - Bilal Haider Abbasi
- Department of Biotechnology, Quaid-i-Azam University, Islamabad-45320, Pakistan
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Zhang Y, Zhang M, Cheng D, Xu S, Du C, Xie L, Zhao W. Applications of electrospun scaffolds with enlarged pores in tissue engineering. Biomater Sci 2022; 10:1423-1447. [DOI: 10.1039/d1bm01651b] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Despite electrospinning has multiple advantages over other methods such as creating materials with superfine fiber diameter, high specific surface area, and good mechanical properties, the pore diameter of scaffolds prepared...
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Zarei Z, Mirjalili M, Norooz Kermanshahi P. Optimization of Dendrimer Polyamidoamin Electrospun Nanofibers: Preparation and Properties. IRANIAN JOURNAL OF BIOTECHNOLOGY 2022; 20:e2996. [PMID: 35891957 PMCID: PMC9284246 DOI: 10.30498/ijb.2021.273730.2996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND The most common polymers in the treatment of wounds are natural (e.g., polysaccharides, proteins, and peptides) and synthetic polymers (e.g., poly-glycolic acid, polyacrylic acid, polylactic acid, and polyvinyl alcohol) due to their biodegradability, biocompatibility, and their structural resemblance to the macromolecules known to the human body. OBJECTIVES The current study aimed to develop an electrospinning method using the nanofibers of polyvinyl alcohol (PVA)/carboxymethyl cellulose (CMC)/polyamide amine (PAMAM)/tetracycline (Tet) to cover the wound. The antibacterial effect of PAMAM was also tested against E. coli and S. aureus bacteria. MATERIALS AND METHODS The morphology of the composite nanofiber was studied by a field emission scanning electron microscope. Infrared spectroscopy (FTIR) was used to characterize the nano chemical structure. RESULTS Nanofibers were evaluated based on the release of different amounts of the antibiotic tetracycline (1%, 3%, 5%, and 7% by weight) while preventing wound infection. The findings indicated that the highest-profile release of all nanofibers occurred early within 12 hours. It was found that nanofiber membranes loaded with 1%, 3%, and 5% tetracycline released drugs for over 28 days, while those containing 7% tetracycline released drugs for more than 14 days. CONCLUSIONS According to the findings related to the drug release of PVA/CMC/15% PAMAM/Tet and surface morphology of the nanofibers, the optimal amount of Tet was 5%. The results of FTIR spectroscopy indicated that the tetracycline and polyamidoamine were successfully placed in nanofibers.
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Affiliation(s)
- Zahra Zarei
- Department of Polymer and Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Mohammad Mirjalili
- Department of Polymer and Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran
| | - Pouriya Norooz Kermanshahi
- Department of Polymer and Textile Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran,
Department of Textile, Campus de Azurém, Av. da Universidade, 4800-058 Guimarães, Portugal
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Li H, Kang Z, He E, Wu X, Ma X, Yang D, Diao Y, Chen X. Fish-scale derived multifunctional nanofiber membrane for infected wound healing. Biomater Sci 2022; 10:5284-5300. [DOI: 10.1039/d2bm00646d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rapid development of modern medicine has put forward new requirements for wound infection healing methods in clinical treatment. Despite great achievements have been made in the research and development...
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Serbezeanu D, Bargan A, Homocianu M, Aflori M, Rîmbu CM, Enache AA, Vlad-Bubulac T. Electrospun Polyvinyl Alcohol Loaded with Phytotherapeutic Agents for Wound Healing Applications. NANOMATERIALS 2021; 11:nano11123336. [PMID: 34947686 PMCID: PMC8705401 DOI: 10.3390/nano11123336] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/04/2021] [Accepted: 12/05/2021] [Indexed: 12/28/2022]
Abstract
In this paper, hydroalcoholic solutions of Thymus vulgaris, Salvia officinalis folium, and Hyperici herba were used in combination with poly (vinyl alcohol) with the aim of developing novel poly (vinyl alcohol)-based nanofiber mats loaded with phytotherapeutic agents via the electrospinning technique. The chemical structure and morphology of the polymeric nanofibers were investigated using Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM). The addition of Thymus vulgaris, Salvia officinalis folium, and Hyperici herba extracts to the pure polyvinyl alcohol fibers led to changes in the morphology of the fibers and a reduction in the fibers’ diameter, from 0.1798 µm in the case of pure polyvinyl alcohol to 0.1672, 0.1425, and 0.1369 µm in the case of polyvinyl alcohol loaded with Thymus vulgaris, Salvia officinalis folium, and Hyperici herba, respectively. The adapted Folin–Ciocalteu (FC) method, which was used to determine the total phenolic contents, revealed that the samples of PVA–Hyperici herba and PVA–Thymus vulgaris had the highest phenol contents, at 13.25 μgGAE/mL and 12.66 μgGAE/mL, respectively. Dynamic water vapor measurements were used in order to investigate the moisture sorption and desorption behavior of the developed electrospun materials. The antimicrobial behavior of these products was also evaluated. Disk diffusion assay studies with Escherichia coli, Staphylococcus aureus, and Methicillin-resistant Staphylococcus aureus were conducted on the developed nanofibers in order to quantify their phytotherapeutic potential.
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Affiliation(s)
- Diana Serbezeanu
- “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.B.); (M.H.); (M.A.); (T.V.-B.)
- Correspondence:
| | - Alexandra Bargan
- “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.B.); (M.H.); (M.A.); (T.V.-B.)
| | - Mihaela Homocianu
- “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.B.); (M.H.); (M.A.); (T.V.-B.)
| | - Magdalena Aflori
- “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.B.); (M.H.); (M.A.); (T.V.-B.)
| | - Cristina Mihaela Rîmbu
- Department of Public Health, Faculty of Veterinary Medicine “Ion Ionescu de la Brad”, University of Agricultural Sciences and Veterinary Medicine, 8, Mihail Sadoveanu Alley, 707027 Iasi, Romania;
| | | | - Tăchiță Vlad-Bubulac
- “Petru Poni” Institute of Macromolecular Chemistry, 41A, Grigore Ghica Voda Alley, 700487 Iasi, Romania; (A.B.); (M.H.); (M.A.); (T.V.-B.)
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Matera DL, Lee AT, Hiraki HL, Baker BM. The Role of Rho GTPases During Fibroblast Spreading, Migration, and Myofibroblast Differentiation in 3D Synthetic Fibrous Matrices. Cell Mol Bioeng 2021; 14:381-396. [PMID: 34777599 DOI: 10.1007/s12195-021-00698-5] [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: 02/24/2021] [Accepted: 08/09/2021] [Indexed: 10/20/2022] Open
Abstract
Introduction Connective tissue repair and mechanosensing are tightly entwined in vivo and occur within a complex three-dimensional (3D), fibrous extracellular matrix (ECM). Typically driven by activated fibroblasts, wound repair involves well-defined steps of cell spreading, migration, proliferation, and fibrous ECM deposition. While the role of Rho GTPases in regulating these processes has been explored extensively in two-dimensional cell culture models, much less is known about their role in more physiologic, 3D environments. Methods We employed a 3D, fibrous and protease-sensitive hydrogel model of interstitial ECM to study the interplay between Rho GTPases and fibrous matrix cues in fibroblasts during wound healing. Results Modulating fiber density within protease-sensitive hydrogels, we confirmed previous findings that heightened fiber density promotes fibroblast spreading and proliferation. The presence of matrix fibers furthermore corresponded to increased cell migration speeds and macroscopic hydrogel contraction arising from fibroblast generated forces. During fibroblast spreading, Rac1 and RhoA GTPase activity proved crucial for fiber-mediated cell spreading and contact guidance along matrix fibers, while Cdc42 was dispensable. In contrast, interplay between RhoA, Rac1, and Cdc42 contributed to fiber-mediated myofibroblast differentiation and matrix contraction over longer time scales. Conclusion These observations may provide insights into tissue repair processes in vivo and motivate the incorporation of cell-adhesive fibers within synthetic hydrogels for material-guided wound repair strategies. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-021-00698-5.
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Affiliation(s)
- Daniel L Matera
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109 USA
| | - Alexander T Lee
- Department of Biology, University of Michigan, Ann Arbor, MI 48109 USA
| | - Harrison L Hiraki
- Department of Biomedical Engineering, University of Michigan, 2174 Lurie BME Building, 1101 Beal Avenue, Ann Arbor, MI 48109 USA
| | - Brendon M Baker
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109 USA.,Department of Biomedical Engineering, University of Michigan, 2174 Lurie BME Building, 1101 Beal Avenue, Ann Arbor, MI 48109 USA
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25
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JK-2 loaded electrospun membrane for promoting bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112471. [PMID: 34702545 DOI: 10.1016/j.msec.2021.112471] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/22/2021] [Accepted: 09/28/2021] [Indexed: 12/16/2022]
Abstract
Hydrogen sulfide (H2S) has been as an essential gasotransmitter and a potential therapeutic approach for several biomedical treatments such as cardiovascular disorders, hypertension, and other diseases. The endogenous and exogenous H2S also plays a crucial role in the bone anabolic process and a protective mechanism in cell signalling. In this study, we have utilized two types of polymers, polycaprolactone (PCL) and gelatin (Gel), for the fabrication of JK-2 (H2S donor) loaded nanofibrous scaffold via electrospinning process for bone healing and bone tissue engineering. Comparing the PCL/Gel and PCL/Gel-JK-2 scaffolds, the latter demonstrated enhanced cell adhesion and proliferation capabilities. Furthermore, both experimental scaffolds have been subjected to an in vivo experiment for 4 and 8 weeks in a bone-defect model of a rabbit to determine their biological responses under physiological conditions. There was an obvious increase in bone regeneration in the PCL/Gel-JK-2 group compared to the control and PCL/Gel groups. These results indicate the use of PCL/Gel scaffolds loaded with JK-2 should be considered for possible bone regeneration.
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26
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Ionescu OM, Mignon A, Minsart M, Caruntu ID, Giusca SE, Gardikiotis I, Van Vlierberghe S, Profire L. Acrylate-endcapped urethane-based hydrogels: An in vivo study on wound healing potential. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112436. [PMID: 34702521 DOI: 10.1016/j.msec.2021.112436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 08/25/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Abstract
Improving wound healing by developing innovative dressing materials has been an important focus over the past few years in the biomedical field. In this regard, the current study focuses on developing new dressings based on acrylate-endcapped urethane-based polymers (AUPs). The materials have been processed into films and electrospun mats. Exudate uptake capacity, mechanical properties and fiber morphology were evaluated herein. The results showed superior uptake capacity of both films and mats when compared to Aquacel®Ag, Exufiber® and Help®. Addition of a high molar mass poly(ethylene glycol) to the AUP polymers benefits both the film and electrospun dressings in terms of flexibility and elongation. An in vivo study was conducted to assess the wound healing properties of these dressings on an acute wound model induced to rats. A macroscopic evaluation indicated that wound contraction and wound fraction percentages were improved significantly in case of the AUP-materials when compared to both the positive (Aquacel®Ag) and negative (Exufiber® and Help®) controls. A histopathological assay, to underline the changes noticed on a macroscopical level, was also performed. The data obtained proved that the developed dressings are beneficial towards tissue regeneration and accelerated wound healing. These findings offer a practical yet adequate strategy for the fabrication of acrylate-endcapped urethane-based materials for wound healing applications.
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Affiliation(s)
- Oana Maria Ionescu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy of Iasi, 16 University Street, Iasi 700115, Romania
| | - Arn Mignon
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Belgium; Smart Polymeric Biomaterials, Biomaterials and Tissue Engineering, Campus Group T, KU Leuven, Andreas Vesaliusstraat 13, 3000 Leuven, Belgium
| | - Manon Minsart
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Belgium
| | - Irina-Draga Caruntu
- Department of Morphofunctional Sciences, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy of Iasi, 16 University Street, Iasi 700115, Romania
| | - Simona Eliza Giusca
- Department of Morphofunctional Sciences, Faculty of Medicine, "Grigore T. Popa" University of Medicine and Pharmacy of Iasi, 16 University Street, Iasi 700115, Romania
| | - Ioannis Gardikiotis
- Advanced Centre of Research and Development in Experimental Medicine, "Grigore T. Popa" University of Medicine and Pharmacy of Iasi, 16 University Street, Iasi 700115, Romania
| | - Sandra Van Vlierberghe
- Polymer Chemistry and Biomaterials Group, Center of Macromolecular Chemistry, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281, S4-bis, 9000 Gent, Belgium.
| | - Lenuta Profire
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, "Grigore T. Popa" University of Medicine and Pharmacy of Iasi, 16 University Street, Iasi 700115, Romania.
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27
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Movahedi M, Salehi AOM, Moezi D, Yarahmadian R. In vitro and in vivo study of aspirin loaded, electrospun polycaprolactone–maltodextrin membrane for enhanced skin tissue regeneration. INT J POLYM MATER PO 2021. [DOI: 10.1080/00914037.2021.1962877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mehdi Movahedi
- Department of Biomedical Engineering, Islamic Azad University, Shahrekord Branch, Iran
| | | | - Davoud Moezi
- Department of Mechanical Engineering, Isfahan University of Technology, Iran
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28
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Aras C, Tümay Özer E, Göktalay G, Saat G, Karaca E. Evaluation of Nigella sativa oil loaded electrospun polyurethane nanofibrous mat as wound dressing. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2021; 32:1718-1735. [PMID: 34053403 DOI: 10.1080/09205063.2021.1937463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Electrospun nanofibers have a natural wound healing effect due to their similarity to the extracellular matrix (ECM). Nigella sativa oil, which has therapeutic properties, is used for a wide variety of applications in traditional medicine. The aim of this study was to investigate the release characteristic and wound healing performance of Nigella sativa oil (NSO) loaded polyurethane (PU) electrospun nanofibrous mats in wound dressing applications. In addition, the antibacterial activity and cytotoxicity of the electrospun mats were studied. Analyses using a scanning electron microscope (SEM) showed that PU/NSO nanofibrous mat with an average fiber diameter of 416 ± 66 nm were successfully fabricated. NSO was released at a maximum ratio of 30% from the electrospun mat, and the Korsmeyer-Peppas model was identified as best for determining the release mechanism. Significant antibacterial activity was observed against Staphylococcus aureus (90.26%) and Escherichia coli (95.75%). The developed PU/NSO nanofibrous mat increased the cell viability more than 100% in human umbilical vein endothelial cell line (HUVEC) cell line. The NSO loaded PU nanofibrous mat significantly promoted the wound healing process on a rat wound model, and its wound closure reached approximately 85% compared to the control groups on the 9th day (p < 0.01). The results indicated PU/NSO nanofibrous mat is a suitable candidate for a wound dressing.
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Affiliation(s)
- Cansu Aras
- Department Textile of Engineering, Faculty of Engineering, Bursa Uludag University, Gorukle, Bursa, Turkey
| | - Elif Tümay Özer
- Department of Chemistry, Faculty of Arts and Science, Bursa Uludag University, Gorukle, Bursa, Turkey
| | - Gökhan Göktalay
- Department of Pharmacology, Faculty of Medicine, Bursa Uludag University, Gorukle, Bursa, Turkey
| | - Gülbahar Saat
- Inovenso Technology Limited, IOSB, Basaksehir, Istanbul, Turkey
| | - Esra Karaca
- Department Textile of Engineering, Faculty of Engineering, Bursa Uludag University, Gorukle, Bursa, Turkey
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29
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Hussain F, Hadi F, Rongliang Q. Effects of zinc oxide nanoparticles on antioxidants, chlorophyll contents, and proline in Persicaria hydropiper L. and its potential for Pb phytoremediation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:34697-34713. [PMID: 33655481 DOI: 10.1007/s11356-021-13132-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Applications of nanoparticles and plants for efficient restoration of heavy metal-polluted water and soil are an emerging approach and need to be explored. Hydroponic study was performed to find the role of zinc oxide nanoparticles (ZnO NPs) in plant growth, antioxidative response, and lead (Pb) accumulation in Persicaria hydropiper. Seedlings were grown in Pb-polluted media amended with 5, 10, 15, and 20 mg L-1 ZnO NPs. Inductively coupled plasma spectroscopy (ICP) was used for Pb analysis in plant tissues. Pb significantly inhibited seedling growth, and ZnO NPs alleviated Pb-induced stress by promoting plant growth, and improved chlorophyll and carotenoid contents. Oxidative stress ameliorated in ZnO NPs exposed seedlings through enhanced production of free proline, phenolics, flavonoids, and activation of antioxidative enzymes. Pb accumulation boosted in ZnO NP treatments, and highly significant increase in Pb accumulation in roots (255.60±4.80 mg kg-1), stem (124.07±2.84 mg kg-1), and leaves (92.00±3.22 mg kg-1) was observed in T3 (15 mg L-1 ZnO NPs) for P. hydropiper. Contrarily, ZnO NPs at 20 mg L-1 dose suppressed plant growth, Pb accumulation, secondary metabolites, and antioxidative enzyme activities. Moreover, positive correlation was found in Pb accumulation with free proline and secondary metabolite contents in plant tissues. These results suggest that ZnO NPs at optimum concentration may augment efficacy of plants to remove heavy metal from polluted water through nanophytoremediation.
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Affiliation(s)
- Fazal Hussain
- Department of Biotechnology, University of Malakand, KP, Chakdara, 18800, Pakistan
| | - Fazal Hadi
- Department of Biotechnology, University of Malakand, KP, Chakdara, 18800, Pakistan.
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China.
| | - Qiu Rongliang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, China
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30
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Li Z, Mei S, Dong Y, She F, Li P, Li Y, Kong L. Multi-Functional Core-Shell Nanofibers for Wound Healing. NANOMATERIALS 2021; 11:nano11061546. [PMID: 34208135 PMCID: PMC8230886 DOI: 10.3390/nano11061546] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 05/28/2021] [Accepted: 06/09/2021] [Indexed: 11/30/2022]
Abstract
Core-shell nanofibers have great potential for bio-medical applications such as wound healing dressings where multiple drugs and growth factors are expected to be delivered at different healing phases. Compared to monoaxial nanofibers, core-shell nanofibers can control the drug release profile easier, providing sustainable and effective drugs and growth factors for wound healing. However, it is challenging to produce core-shell structured nanofibers with a high production rate at low energy consumption. Co-axial centrifugal spinning is an alternative method to address the above limitations to produce core-shell nanofibers effectively. In this study, a co-axial centrifugal spinning device was designed and assembled to produce core-shell nanofibers for controlling the release rate of ibuprofen and hEGF in inflammation and proliferation phases during the wound healing process. Core-shell structured nanofibers were confirmed by TEM. This work demonstrated that the co-axial centrifugal spinning is a high productivity process that can produce materials with a 3D environment mimicking natural tissue scaffold, and the specific drug can be loaded into different layers to control the drug release rate to improve the drug efficiency and promote wound healing.
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Affiliation(s)
- Zhen Li
- Hubei Key Laboratory of Digital Textile Equipment, Wuhan Textile University, Wuhan 430073, China; (Z.L.); (Y.D.)
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia;
- Foshan Green Intelligent Manufacturing Research Institute of Xiangtan University, Foshan 528000, China
| | - Shunqi Mei
- Hubei Key Laboratory of Digital Textile Equipment, Wuhan Textile University, Wuhan 430073, China; (Z.L.); (Y.D.)
- Correspondence: (S.M.); (L.K.)
| | - Yajie Dong
- Hubei Key Laboratory of Digital Textile Equipment, Wuhan Textile University, Wuhan 430073, China; (Z.L.); (Y.D.)
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia;
| | - Fenghua She
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia;
| | - Puwang Li
- South Subtropical Crop Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China;
| | - Yongzhen Li
- Agricultural Product Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China;
| | - Lingxue Kong
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3216, Australia;
- Correspondence: (S.M.); (L.K.)
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Nanofibers as drug-delivery systems for antimicrobial peptides. Drug Discov Today 2021; 26:2064-2074. [PMID: 33741497 DOI: 10.1016/j.drudis.2021.03.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 12/11/2020] [Accepted: 03/08/2021] [Indexed: 12/11/2022]
Abstract
Microbial infections are a major worldwide public health problem because a number of microorganisms can show drug resistance. Antimicrobial peptides (AMPs) are small biomolecules that present antimicrobial and immunomodulatory activities. Despite their great potential, there are still many barriers to the formulation of these molecules. In this context, nanotechnological approaches such as nanofibers are candidate drug-delivery systems for AMP formulations. These nanomaterials have a large contact surface and may carry several AMPs (single or multilayer), directing them to specific targets. Thus, this review describes the main advances related to the use of nanofibers as drug-delivery systems for AMPs. These strategies can contribute directly to the design of new multifunctional wound dressings, coatings for prostheses, and tissue engineering applications.
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Ghasemian Lemraski E, Jahangirian H, Dashti M, Khajehali E, Sharafinia S, Rafiee-Moghaddam R, Webster TJ. Antimicrobial Double-Layer Wound Dressing Based on Chitosan/Polyvinyl Alcohol/Copper: In vitro and in vivo Assessment. Int J Nanomedicine 2021; 16:223-235. [PMID: 33469282 PMCID: PMC7810733 DOI: 10.2147/ijn.s266692] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/10/2020] [Indexed: 11/25/2022] Open
Abstract
PURPOSE Today, the development of wounds and their side effects has become a problematic issue in medical science research. Hydrogel-based dressings are some of the best candidates for this purpose due to their ability to keep the wound bed clean, as well as provide proper moisture, tissue compatibility and an antimicrobial effect for wound healing. On the other hand, copper and its compounds have been used experimentally for many years in studies as an antimicrobial substance. Various studies have been performed determining the antimicrobial properties of this element, during which significant effects on infection have been shown. METHODS Chitosan/polyvinyl alcohol/copper nanofibers were successfully prepared by incorporating Cu onto a polymer electrospun using an electrospinning technique. A double-layer nanofiber composed of poly(vinyl alcohol) and chitosan incorporated with Cu nanoparticles as a protective layer and a second layer composed of polyvinylpyrrolidone (PVP) nanofibers which was adjacent to the damaged cells was prepared. The prepared nanofiber was characterized by TGA, FT-IR, TEM, SEM-EDS, and X-ray powder diffraction. The antimicrobial efficiency of the nanofibers was demonstrated through biological tests on some Gram-positive and Gram-negative bacteria. Finally, the prepared hydrogel formulations were prepared to evaluate their effect on the healing process of rat open wounds. RESULTS In this study, data from SEM, TEM, EDS, and XRD confirmed the formation of uniform fibers with nanodiameters and the presence of Cu nanoparticles onto the electrospun nanofibers. The antibacterial activity of copper was observed against all of the selected bacteria, but the Gram-positive bacteria were more sensitive compared to Gram-negative bacteria. CONCLUSION According to the obtained results, the hydrogel wound dressing prepared in this research can be effective in caring for open wounds in the early stages of wound healing and preventing the occurrence of prolonged open wounds.
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Affiliation(s)
| | - Hossein Jahangirian
- Department of Chemical Engineering, Northeastern University, Boston, MA02115, USA
| | - Maryam Dashti
- Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
| | - Elaheh Khajehali
- Department of Food Hygiene, Faculty of Veterinary Medicine, Ilam University, Ilam, Iran
| | - Soheila Sharafinia
- Department of Chemistry Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | | | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston, MA02115, USA
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Vanlalveni C, Lallianrawna S, Biswas A, Selvaraj M, Changmai B, Rokhum SL. Green synthesis of silver nanoparticles using plant extracts and their antimicrobial activities: a review of recent literature. RSC Adv 2021; 11:2804-2837. [PMID: 35424248 PMCID: PMC8694026 DOI: 10.1039/d0ra09941d] [Citation(s) in RCA: 151] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 12/30/2020] [Indexed: 12/27/2022] Open
Abstract
Synthesis of metal nanoparticles using plant extracts is one of the most simple, convenient, economical, and environmentally friendly methods that mitigate the involvement of toxic chemicals. Hence, in recent years, several eco-friendly processes for the rapid synthesis of silver nanoparticles have been reported using aqueous extracts of plant parts such as the leaf, bark, roots, etc. This review summarizes and elaborates the new findings in this research domain of the green synthesis of silver nanoparticles (AgNPs) using different plant extracts and their potential applications as antimicrobial agents covering the literature since 2015. While highlighting the recently used different plants for the synthesis of highly efficient antimicrobial green AgNPs, we aim to provide a systematic in-depth discussion on the possible influence of the phytochemicals and their concentrations in the plants extracts, extraction solvent, and extraction temperature, as well as reaction temperature, pH, reaction time, and concentration of precursor on the size, shape and stability of the produced AgNPs. Exhaustive details of the plausible mechanism of the interaction of AgNPs with the cell wall of microbes, leading to cell death, and high antimicrobial activities have also been elaborated. The shape and size-dependent antimicrobial activities of the biogenic AgNPs and the enhanced antimicrobial activities by synergetic interaction of AgNPs with known commercial antibiotic drugs have also been comprehensively detailed.
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Affiliation(s)
- Chhangte Vanlalveni
- Department of Botany, Mizoram University Tanhril Aizawl Mizoram 796001 India
| | - Samuel Lallianrawna
- Department of Chemistry, Govt. Zirtiri Residential Science College Aizawl 796001 Mizoram India
| | - Ayushi Biswas
- Department of Chemistry, National Institute of Technology Silchar Silchar 788010 India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University Abha 61413 Saudi Arabia
| | - Bishwajit Changmai
- Department of Chemistry, National Institute of Technology Silchar Silchar 788010 India
| | - Samuel Lalthazuala Rokhum
- Department of Chemistry, National Institute of Technology Silchar Silchar 788010 India
- Department of Chemistry, University of Cambridge Lensfield Road Cambridge CB2 1EW UK
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Salehi M, Farzamfar S, Ehterami A, Paknejad Z, Bastami F, Shirian S, Vahedi H, Koehkonan GS, Goodarzi A. Kaolin-loaded chitosan/polyvinyl alcohol electrospun scaffold as a wound dressing material: in vitro and in vivo studies. J Wound Care 2021; 29:270-280. [PMID: 32421483 DOI: 10.12968/jowc.2020.29.5.270] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To evaluate the application of a fabricated dressing containing kaolin for skin regeneration in a rat model of excisional wounds. METHOD In the present study, kaolin was loaded into electrospun polyvinyl alcohol (PVA)/chitosan polymer blend to develop a composite nanofibrous dressing. To make the yarns, kaolin with weight ratio of 5% was added to PVA/chitosan polymer blend and subsequently formed into nanofibres using the electrospinning method. Scaffolds were evaluated for to their microstructure, mechanical properties, surface wettability, water vapour transmission rate, water-uptake capacity, blood uptake capacity, blood compatibility, microbial penetration test, the number of colonies, and cellular response with the L929 cell line. Rats with full-thickness excisional wounds were treated with kaolin-containing and kaolin-free dressings. RESULTS The study showed that rats treated with the kaolin-incorporated mats demonstrated a significant closure to nearly 97.62±4.81% after 14 days compared with PVA/chitosan and the sterile gauze, which showed 86.15±8.11% and 78.50±4.22% of wound closure, respectively. The histopathological studies showed that in the PVA/chitosan/kaolin group, dense and regular collagen fibres were formed, while wounds treated with sterile gauze or PVA/chitosan scaffolds had random and loose collagen fibres. CONCLUSION Our results show the potential applicability of PVA/chitosan/kaolin scaffolds as a wound care material.
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Affiliation(s)
- Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.,Tissue Engineering and Stem Cell Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Saeed Farzamfar
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Arian Ehterami
- Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahrasadat Paknejad
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farshid Bastami
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Behest University of Medical Sciences, Tehran, Iran.,Oral and Maxillofacial Surgery Department, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sadegh Shirian
- Department of Pathology, School of Veterinary Medicine, Shahrekord University, Shahrekord, Iran.,Shiraz Molecular Pathology Research Center, Dr. Daneshbod Pathology Lab, Shiraz, Iran
| | - Hamid Vahedi
- Clinical Research Development Unit, Imam Hossein Hospital, Shahroud University of Medical Sciences, Shahroud, Iran
| | | | - Arash Goodarzi
- Department of Tissue Engineering, School of Medicine, Fasa University of Medical Sciences, Fasa, Iran
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35
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Mouro C, Gomes AP, Gouveia IC. Double‐layer
PLLA
/PEO_Chitosan nanofibrous mats containing
Hypericum perforatum
L. as an effective approach for wound treatment. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5185] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Cláudia Mouro
- FibEnTech Research Unit Faculty of Engineering, University of Beira Interior Covilhã Portugal
| | - Ana P. Gomes
- FibEnTech Research Unit Faculty of Engineering, University of Beira Interior Covilhã Portugal
| | - Isabel C. Gouveia
- FibEnTech Research Unit Faculty of Engineering, University of Beira Interior Covilhã Portugal
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Mikeš P, Brož A, Sinica A, Asatiani N, Bačáková L. In vitro and in vivo testing of nanofibrous membranes doped with alaptide and L-arginine for wound treatment. Biomed Mater 2020; 15:065023. [PMID: 32434166 DOI: 10.1088/1748-605x/ab950f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We have prepared a candidate biocompatible construct for skin wound healing based on electrospun polycaprolactone (PCL) nanofibrous membranes. The membrane material was loaded either with L-arginine or with alaptide, or with a mixture of both bioactive components. Alaptide is a spirocyclic synthetic dipeptide, an analogue of melanocyte-stimulating hormone release-inhibiting factor. L-arginine is an amino acid with a basic guanidine side chain. It is a direct precursor of nitric oxide, which plays a pivotal role in skin repair. The presence and the distribution of the additives were proved with high-performance liquid chromatography, Fourier-transform infrared spectroscopy and Raman spectroscopy. The influence of L-arginine and alaptide on the morphology of the membrane was characterized using scanning electron microscopy. No statistically significant correlation between fiber diameter and drug concentration was observed. The membranes were then tested in vitro for their cytotoxicity, using primary human dermal fibroblasts, in order to obtain the optimal concentrations of the additives for in vivo tests in a rat model. The membranes with the highest concentration of L-arginine (10 wt. %) proved to be cytotoxic. The membranes with alaptide in concentrations from 0.1 to 2.5 wt.%, and with the other L-arginine concentrations (1 and 5 wt.%), did not show high toxicity. In addition, there was no observed improvement in cell proliferation on the membranes. The in vivo experiments revealed that membranes with 1.5 wt.% of alaptide or with 1.5 wt.% of alaptide in combination with 5 wt.% of L-arginine markedly accelerated the healing of skin incisions, and particularly the healing of skin burns, i.e. wounds of relatively large extent. These results indicate that our newly-developed nanofibrous membranes are promising for treating wounds with large damaged areas, where a supporting material is needed.
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Affiliation(s)
- Petr Mikeš
- Department of Chemistry, Technical University of Liberec, Liberec, Czech Republic
| | - Antonín Brož
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
- Author to whom any correspondence should be addressed
| | - Alla Sinica
- University of Chemistry and Technology, Prague, Czech Republic
- First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Nikifor Asatiani
- Department of Chemistry, Technical University of Liberec, Liberec, Czech Republic
| | - Lucie Bačáková
- Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
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Nanofibrous cellulose acetate/gelatin wound dressing endowed with antibacterial and healing efficacy using nanoemulsion of Zataria multiflora. Int J Biol Macromol 2020; 162:762-773. [DOI: 10.1016/j.ijbiomac.2020.06.175] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 06/14/2020] [Accepted: 06/17/2020] [Indexed: 02/06/2023]
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38
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Srivastava P, Lakshmi GBVS, Sri S, Chauhan D, Chakraborty A, Singh S, Solanki PR. Potential of electrospun cellulose acetate nanofiber mat integrated with silver nanoparticles from Azadirachta indica as antimicrobial agent. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02308-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Khorasani MT, Joorabloo A, Adeli H, Milan PB, Amoupour M. Enhanced antimicrobial and full-thickness wound healing efficiency of hydrogels loaded with heparinized ZnO nanoparticles: In vitro and in vivo evaluation. Int J Biol Macromol 2020; 166:200-212. [PMID: 33190822 DOI: 10.1016/j.ijbiomac.2020.10.142] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/04/2020] [Accepted: 10/17/2020] [Indexed: 12/20/2022]
Abstract
Nanotechnology-based fabricated wound dressings are known as appropriate substrates to enhance healing in both acute and chronic wounds. These types of materials have the ability to deliver therapeutic agents. In this study, a wound dressing including heparinized zinc oxide nanoparticles in combination with chitosan and poly(vinyl alcohol) was developed to investigate its antibacterial and regenerative properties in a rat model of full thickness skin wounds. By adding nanoparticles, the mechanical strength increased up to twice as compared to the sample without nanoparticles. In addition, heparin release profile follows the Hixson-Crowell release kinetic. Protein adsorption enhanced by adding nanoparticles in hydrogels and the prepared wound dressings were completely biocompatible. In terms of antibacterial activity, the minimum inhibitory concentration decreased by conjugation of heparin on the surface of zinc oxide nanoparticles compared to the non-functionalized nanoparticles, and, this shows the increased antibacterial synergistic effect by adding heparin to nanoparticles. Furthermore, it was found that the heparinized zinc oxide nanoparticles effectively accelerate wound closure, re-epithelialization and decrease collagen deposition compared to other groups after implantation. Hence, the prepared wound dressings have the capacity to significantly enhance healing of acute wounds.
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Affiliation(s)
- Mohammad Taghi Khorasani
- Biomaterials Department of Iran Polymer and Petrochemical Institute, P.O. Box 14965/159, Tehran, Iran.
| | - Alireza Joorabloo
- Biomaterials Department of Iran Polymer and Petrochemical Institute, P.O. Box 14965/159, Tehran, Iran
| | - Hassan Adeli
- Department of Chemical Engineering, University of Mazandaran, Babolsar, Iran
| | - Peiman Brouki Milan
- Cellular and Molecular Research Center (CMRC), Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Moein Amoupour
- Department of Medical Biotechnology, Faculty of Allied Medicine, Iran University of Medical Science, Tehran, Iran
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Elsayed RE, Madkour TM, Azzam RA. Tailored-design of electrospun nanofiber cellulose acetate/poly(lactic acid) dressing mats loaded with a newly synthesized sulfonamide analog exhibiting superior wound healing. Int J Biol Macromol 2020; 164:1984-1999. [PMID: 32771511 DOI: 10.1016/j.ijbiomac.2020.07.316] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 07/26/2020] [Accepted: 07/27/2020] [Indexed: 12/25/2022]
Abstract
To effectively allow for controlled release of a newly synthesized sulfonamide analog, biodegradable poly(lactic acid) nanofibrous dressing mats tailored-designed for maximum wound healing efficacy were developed. The heterocyclic analog, N-(3,4-diamino-7-(benzo [d]thiazol-2-yl)-6-oxo-1H-pyrazolo[4,3-c]pyridin-5(6H)-yl)benzenesulfonamide, has been specifically synthesized to possess superior antibacterial and anti-inflammatory characteristics. Hydrophilic cellulose acetate and/or poly(ethylene oxide) were blended with the hydrophobic PLA to control the hydrophilicity/hydrophobicity ratio for the sustained release of the drug. SEM detected no drug crystals on the surface of the nanofibers confirming the homogeneous dispersion and compatibility of the drug with the nanofibers. BET indicated almost-reversible Type II sorption isotherms. The swelling studies revealed that the presence of hydrogen bonds between the hydroxyl groups of CA with the carbonyl ester groups of PLA limited the ability of CA molecules to leach from the polymer matrix. Water vapor permeability were all determined to be within the range of 15-19 g/m2/h. In-vitro cell viability and cell proliferation studies revealed the superiority of the fabricated dressing mats in terms of its bioactivity and cellular interaction. In-vivo studies confirmed the major improvement in its wound healing capabilities attributed to an enhanced epithelization, anti-inflammation, neo-angiogenesis, fibroplasias and collagen deposition that surpassed that of commercially available ones.
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Affiliation(s)
- Rasha E Elsayed
- Department of Chemistry, Helwan University, Ain-Helwan 11795, Egypt; The Department of Chemistry, The American University in Cairo, New Cairo 11835, Egypt
| | - Tarek M Madkour
- The Department of Chemistry, The American University in Cairo, New Cairo 11835, Egypt.
| | - Rasha A Azzam
- Department of Chemistry, Helwan University, Ain-Helwan 11795, Egypt
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Li Z, Mei S, Dong Y, She F, Li Y, Li P, Kong L. Functional Nanofibrous Biomaterials of Tailored Structures for Drug Delivery-A Critical Review. Pharmaceutics 2020; 12:pharmaceutics12060522. [PMID: 32521627 PMCID: PMC7355603 DOI: 10.3390/pharmaceutics12060522] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 01/07/2023] Open
Abstract
Nanofibrous biomaterials have huge potential for drug delivery, due to their structural features and functions that are similar to the native extracellular matrix (ECM). A wide range of natural and polymeric materials can be employed to produce nanofibrous biomaterials. This review introduces the major natural and synthetic biomaterials for production of nanofibers that are biocompatible and biodegradable. Different technologies and their corresponding advantages and disadvantages for manufacturing nanofibrous biomaterials for drug delivery were also reported. The morphologies and structures of nanofibers can be tailor-designed and processed by carefully selecting suitable biomaterials and fabrication methods, while the functionality of nanofibrous biomaterials can be improved by modifying the surface. The loading and releasing of drug molecules, which play a significant role in the effectiveness of drug delivery, are also surveyed. This review provides insight into the fabrication of functional polymeric nanofibers for drug delivery.
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Affiliation(s)
- Zhen Li
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia; (Z.L.); (Y.D.); (F.S.)
- School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Digital Textile Equipment, Wuhan Textile University, Wuhan 430073, China
| | - Shunqi Mei
- School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Digital Textile Equipment, Wuhan Textile University, Wuhan 430073, China
- Correspondence: (S.M.); (L.K.)
| | - Yajie Dong
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia; (Z.L.); (Y.D.); (F.S.)
- School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan 430073, China
- Hubei Key Laboratory of Digital Textile Equipment, Wuhan Textile University, Wuhan 430073, China
| | - Fenghua She
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia; (Z.L.); (Y.D.); (F.S.)
| | - Yongzhen Li
- Key laboratory of Tropical Crop Products Processing, Ministry of Agriculture and Rural Affairs, Agriculture Products Processing Research Institute, CATAS, Zhanjiang 524001, China; (Y.L.); (P.L.)
| | - Puwang Li
- Key laboratory of Tropical Crop Products Processing, Ministry of Agriculture and Rural Affairs, Agriculture Products Processing Research Institute, CATAS, Zhanjiang 524001, China; (Y.L.); (P.L.)
| | - Lingxue Kong
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia; (Z.L.); (Y.D.); (F.S.)
- Correspondence: (S.M.); (L.K.)
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Amer S, Attia N, Nouh S, El-Kammar M, Korittum A, Abu-Ahmed H. Fabrication of sliver nanoparticles/polyvinyl alcohol/gelatin ternary nanofiber mats for wound healing application. J Biomater Appl 2020; 35:287-298. [PMID: 32443958 DOI: 10.1177/0885328220927317] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE In this study, we aimed to determine the regenerative and antimicrobial impact of the electrospun nanofiber mats, with/without silver nanoparticles (AgNPs), on full-thickness skin wounds in rabbits. METHODS Polyvinyl alcohol was combined with gelatin to provide biocompatible electrospun binary nanofiber mats. AgNPs were added to the polyvinyl alcohol/gelatin mixture to obtain ternary nanofiber-AgNPs mats. Binary and ternary nanofiber mats were characterized by scanning electron microscopy before being applied as wound dressings in vivo. Subsequently, wound healing was evaluated. RESULTS Both nanofiber/nanofiber-AgNPs mats improved the microscopic quality of the healed skin, albeit without obvious acceleration of the healing rate. As well, both types of nanofiber mats were able to combat microbial invasion into the wound bed. CONCLUSIONS Both binary polyvinyl alcohol/gelatin and ternary polyvinyl alcohol/gelatin/AgNPs nanofiber mats developed in the present study depicted similar regenerative and antimicrobial potential when applied as full-thickness wound dressing. However, in comparison to the binary nanofiber mats, no obvious synergistic effect was observed after loading nanofibers with AgNPs.
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Affiliation(s)
- Somaya Amer
- Department of Surgery, Faculty of Veterinary medicine, Alexandria University, Alexandria, Egypt
| | - Noha Attia
- Department of Basic Sciences, The American University of Antigua-College of Medicine, University Park, Coolidge, Antigua and Barbuda
| | - Samir Nouh
- Department of Surgery, Faculty of Veterinary medicine, Alexandria University, Alexandria, Egypt
| | - Mahmoud El-Kammar
- Department of Surgery, Faculty of Veterinary medicine, Alexandria University, Alexandria, Egypt
| | - Ahmed Korittum
- Department of Surgery, Faculty of Veterinary medicine, Alexandria University, Alexandria, Egypt
| | - Howaida Abu-Ahmed
- Department of Surgery, Faculty of Veterinary medicine, Alexandria University, Alexandria, Egypt
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Samadian H, Zamiri S, Ehterami A, Farzamfar S, Vaez A, Khastar H, Alam M, Ai A, Derakhshankhah H, Allahyari Z, Goodarzi A, Salehi M. Electrospun cellulose acetate/gelatin nanofibrous wound dressing containing berberine for diabetic foot ulcer healing: in vitro and in vivo studies. Sci Rep 2020; 10:8312. [PMID: 32433566 PMCID: PMC7239895 DOI: 10.1038/s41598-020-65268-7] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 04/27/2020] [Indexed: 01/18/2023] Open
Abstract
Functional wound dressing with tailored physicochemical and biological properties is vital for diabetic foot ulcer (DFU) treatment. Our main objective in the current study was to fabricate Cellulose Acetate/Gelatin (CA/Gel) electrospun mat loaded with berberine (Beri) as the DFU-specific wound dressing. The wound healing efficacy of the fabricated dressings was evaluated in streptozotocin-induced diabetic rats. The results demonstrated an average nanofiber diameter of 502 ± 150 nm, and the tensile strength, contact angle, porosity, water vapor permeability and water uptake ratio of CA/Gel nanofibers were around 2.83 ± 0.08 MPa, 58.07 ± 2.35°, 78.17 ± 1.04%, 11.23 ± 1.05 mg/cm2/hr, and 12.78 ± 0.32%, respectively, while these values for CA/Gel/Beri nanofibers were 2.69 ± 0.05 MPa, 56.93 ± 1°, 76.17 ± 0.76%, 10.17 ± 0.21 mg/cm2/hr, and 14.37 ± 0.42%, respectively. The antibacterial evaluations demonstrated that the dressings exhibited potent antibacterial activity. The collagen density of 88.8 ± 6.7% and the angiogenesis score of 19.8 ± 3.8 obtained in the animal studies indicate a proper wound healing. These findings implied that the incorporation of berberine did not compromise the physical properties of dressing, while improving the biological activities. In conclusion, our results indicated that the prepared mat is a proper wound dressing for DFU management and treatment.
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Affiliation(s)
- Hadi Samadian
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Sina Zamiri
- Department of Kinesiology and Health Science, York University, Ontario, Canada
| | - Arian Ehterami
- Department of Mechanical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Saeed Farzamfar
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ahmad Vaez
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hossein Khastar
- School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mostafa Alam
- Department of Oral and Maxillofacial Surgery, Dental School, Shahid Beheshti University of Medical sciences, Tehran, Iran
| | - Armin Ai
- Dental student of scientific research center, faculty of dentistry, Tehran university of medical sciences, Tehran, Iran
| | - Hossein Derakhshankhah
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zahra Allahyari
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, USA
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, NY, USA
| | - Arash Goodarzi
- Department of Tissue Engineering, School of Advanced Technologies, Fasa University of Medical Sciences, Fasa, Iran
| | - Majid Salehi
- Department of Tissue Engineering, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.
- Tissue Engineering and stem cells research center, Shahroud University of Medical Sciences, Shahroud, Iran.
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Chen S, Wang H, Su Y, John JV, McCarthy A, Wong SL, Xie J. Mesenchymal stem cell-laden, personalized 3D scaffolds with controlled structure and fiber alignment promote diabetic wound healing. Acta Biomater 2020; 108:153-167. [PMID: 32268240 PMCID: PMC7207021 DOI: 10.1016/j.actbio.2020.03.035] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 03/24/2020] [Accepted: 03/25/2020] [Indexed: 12/21/2022]
Abstract
The management of diabetic wounds remains a major therapeutic challenge in clinics. Herein, we report a personalized treatment using 3D scaffolds consisting of radially or vertically aligned nanofibers in combination with bone marrow mesenchymal stem cells (BMSCs). The 3D scaffolds have customizable sizes, depths, and shapes, enabling them to fit a variety of type 2 diabetic wounds. In addition, the 3D scaffolds are shape-recoverable in atmosphere and water following compression. The BMSCs-laden 3D scaffolds are capable of enhancing the formation of granulation tissue, promoting angiogenesis, and facilitating collagen deposition. Further, such scaffolds inhibit the formation of M1-type macrophages and the expression of pro-inflammatory cytokines IL-6 and TNF-α and promote the formation of M2-type macrophages and the expression of anti-inflammatory cytokines IL-4 and IL-10. Taken together, BMSCs-laden, 3D nanofiber scaffolds with controlled structure and alignment hold great promise for the treatment of diabetic wounds. STATEMENT OF SIGNIFICANCE: In this study, we developed 3D radially and vertically aligned nanofiber scaffolds to transplant bone marrow mesenchymal stem cells (BMSCs). We personalized 3D scaffolds that could completely match the size, depth, and shape of diabetic wounds. Moreover, both the radially and vertically aligned nanofiber scaffolds could completely recover their shape and maintain structural integrity after repeated loads with compressive stresses. Furthermore, the BMSCs-laden 3D scaffolds are able to promote granulation tissue formation, angiogenesis, and collagen deposition, and switch the immune responses to the pro-regenerative direction. These 3D scaffolds consisting of radially or vertically aligned nanofibers in combination with BMSCs offer a robust, customizable platform potentially for a significant improvement of managing diabetic wounds.
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Affiliation(s)
- Shixuan Chen
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Hongjun Wang
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Yajuan Su
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Johnson V John
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Alec McCarthy
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Shannon L Wong
- Department of Surgery-Plastic Surgery, University of Nebraska Medical Center, Omaha, NE 68198, United States
| | - Jingwei Xie
- Department of Surgery-Transplant and Mary and Dick Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, NE 68198, United States.
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Bongiovanni Abel S, Montini Ballarin F, Abraham GA. Combination of electrospinning with other techniques for the fabrication of 3D polymeric and composite nanofibrous scaffolds with improved cellular interactions. NANOTECHNOLOGY 2020; 31:172002. [PMID: 31931493 DOI: 10.1088/1361-6528/ab6ab4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The development of three-dimensional (3D) scaffolds with physical and chemical topological cues at the macro-, micro-, and nanometer scale is urgently needed for successful tissue engineering applications. 3D scaffolds can be manufactured by a wide variety of techniques. Electrospinning technology has emerged as a powerful manufacturing technique to produce non-woven nanofibrous scaffolds with very interesting features for tissue engineering products. However, electrospun scaffolds have some inherent limitations that compromise the regeneration of thick and complex tissues. By integrating electrospinning and other fabrication technologies, multifunctional 3D fibrous assemblies with micro/nanotopographical features can be created. The proper combination of techniques leads to materials with nano and macro-structure, allowing an improvement in the biological performance of tissue-engineered constructs. In this review, we focus on the most relevant strategies to produce electrospun polymer/composite scaffolds with 3D architecture. A detailed description of procedures involving physical and chemical agents to create structures with large pores and 3D fiber assemblies is introduced. Finally, characterization and biological assays including in vitro and in vivo studies of structures intended for the regeneration of functional tissues are briefly presented and discussed.
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Affiliation(s)
- Silvestre Bongiovanni Abel
- Research Institute for Materials Science and Technology, INTEMA (UNMdP-CONICET). Av. Colón 10850, B7606BWV, Mar del Plata, Argentina
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Huang R, Wang J, Chen H, Shi X, Wang X, Zhu Y, Tan Z. The topography of fibrous scaffolds modulates the paracrine function of Ad-MSCs in the regeneration of skin tissues. Biomater Sci 2020; 7:4248-4259. [PMID: 31393466 DOI: 10.1039/c9bm00939f] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Injuries to the skin are common in daily life, and a certain type or size of defect is not easily restored using conventional dressings or naturally. The repair of these defects requires restoration of function in regenerated tissues. In this study, a tissue engineered skin was designed and fabricated using a bio-3D printing system. Polycaprolactone and bacterial cellulose comprised the scaffold, due to their excellent biocompatibility and multifunctionality. Adipose-derived mesenchymal stem cells (Ad-MSCs) were seeded onto the scaffold to functionalize it as an artificial skin. The finished artificial skin had mechanical properties similar to that of natural skin, and its fibrous structure providing a unique micro-environment that could regulate the paracrine function of the Ad-MSCs. This effect could be greatly increased by changes in the characteristics of the biomaterials. The artificial skin exhibited high biological activity, strong induction of cell recruitment, migration, growth and up-regulation of gene expression of relevant factors, resulting in excellent wound healing characteristics. This study clarified novel design aspects of cell-material interactions in which the topographical characteristics of materials can be further developed to establish cell signaling or communication networks that take advantage of the paracrine actions of Ad-MSCs to promote specific tissue regeneration or repair characteristics.
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Affiliation(s)
- Ruiying Huang
- College of Biology, Hunan University, Changsha, Hunan, China410082.
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Affiliation(s)
- Lihua Lou
- Nonwovens & Advanced Materials Laboratory, the Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, Texas 79409, United States
- School of Pharmacy, Virginia Commonwealth University, 410 North 12th Street, Smith Building 355, Richmond, Virginia 23298, United States
| | - Odia Osemwegie
- Nonwovens & Advanced Materials Laboratory, the Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, Texas 79409, United States
| | - Seshadri S. Ramkumar
- Nonwovens & Advanced Materials Laboratory, the Institute of Environmental and Human Health, Texas Tech University, 1207 Gilbert Drive, Lubbock, Texas 79409, United States
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The biomedical potential of cellulose acetate/polyurethane nanofibrous mats containing reduced graphene oxide/silver nanocomposites and curcumin: Antimicrobial performance and cutaneous wound healing. Int J Biol Macromol 2020; 152:418-427. [PMID: 32112830 DOI: 10.1016/j.ijbiomac.2020.02.295] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/25/2020] [Accepted: 02/25/2020] [Indexed: 12/11/2022]
Abstract
In this study, nanofibrous scaffolds were prepared from polyurethane and cellulose acetate using electrospinning. Reduced graphene oxide/silver nanocomposites, rGO/Ag, were also used into the mats due to the strong antibacterial activity of rGO/Ag nanocomposites. In order to prevent the agglomeration of silver nanoparticles, AgNPs, the nanoparticles were decorated onto the reduced graphene oxide (rGO) sheets. Initially, Graphene oxide, briefly GO, was synthesized by the improved Hummer method. Then, nanocomposites of reduced graphene oxide were decorated with Ag and were fabricated via a green and facile hydrothermal method. Thereafter, the scaffold containing rGO/Ag nanocomposites, curcumin or both of them were prepared using the electrospinning method. The obtained scaffolds were characterized by scanning electron microscopy (SEM), contact angle, tensile analysis, porosity, and water vapor transmission rate (WVTR). 3-[4,5-Dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide assay, MTT, confirmed the biocompatibility of the composite nanofibers. The scaffolds were able to hinder both of the Gram-negative and Gram-positive bacteria through direct contact with them. In vivo histopathological studies indicated that the scaffold incorporated rGO/Ag nanocomposites and curcumin has the most effect on wound healing and can promote the healing rate of artificial wounds, which indicates the good biomedical potential of nanomaterial in wound healing.
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49
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Yilmaz EN, Zeugolis DI. Electrospun Polymers in Cartilage Engineering-State of Play. Front Bioeng Biotechnol 2020; 8:77. [PMID: 32133352 PMCID: PMC7039817 DOI: 10.3389/fbioe.2020.00077] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/29/2020] [Indexed: 12/17/2022] Open
Abstract
Articular cartilage defects remain a clinical challenge. Articular cartilage defects progress to osteoarthritis, which negatively (e.g., remarkable pain, decreased mobility, distress) affects millions of people worldwide and is associated with excessive healthcare costs. Surgical procedures and cell-based therapies have failed to deliver a functional therapy. To this end, tissue engineering therapies provide a promise to deliver a functional cartilage substitute. Among the various scaffold fabrication technologies available, electrospinning is continuously gaining pace, as it can produce nano- to micro- fibrous scaffolds that imitate architectural features of native extracellular matrix supramolecular assemblies and can deliver variable cell populations and bioactive molecules. Herein, we comprehensively review advancements and shortfalls of various electrospun scaffolds in cartilage engineering.
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Affiliation(s)
- Elif Nur Yilmaz
- Regenerative, Modular & Developmental Engineering Laboratory, National University of Ireland Galway, Galway, Ireland.,Science Foundation Ireland, Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
| | - Dimitrios I Zeugolis
- Regenerative, Modular & Developmental Engineering Laboratory, National University of Ireland Galway, Galway, Ireland.,Science Foundation Ireland, Centre for Research in Medical Devices, National University of Ireland Galway, Galway, Ireland
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50
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Hussain D, Raza Naqvi ST, Ashiq MN, Najam-ul-Haq M. Analytical sample preparation by electrospun solid phase microextraction sorbents. Talanta 2020; 208:120413. [DOI: 10.1016/j.talanta.2019.120413] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 09/28/2019] [Accepted: 09/30/2019] [Indexed: 12/15/2022]
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