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Catanzano O, Gomez d'Ayala G, D'Agostino A, Di Lorenzo F, Schiraldi C, Malinconico M, Lanzetta R, Bonina F, Laurienzo P. PEG-crosslinked-chitosan hydrogel films for in situ delivery of Opuntia ficus-indica extract. Carbohydr Polym 2021; 264:117987. [PMID: 33910725 DOI: 10.1016/j.carbpol.2021.117987] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 01/29/2021] [Accepted: 03/23/2021] [Indexed: 12/12/2022]
Abstract
In the present study, chitosan-based wound dressings loaded with the extract of Opuntia ficus-indica (OPU) were prepared. OPU is known for its capability to accelerate skin injury repair. Chitosan (Ch) was crosslinked with a low molecular weight diepoxy-poly(ethylene glycol) (diePEG), and hydrogel films with different Ch/PEG composition and OPU content were prepared by casting. The occurrence of crosslinking reaction was confirmed by FTIR spectroscopy. FTIR and DSC analysis suggested that ionic interactions occur between chitosan and OPU. Tensile tests evidenced that the crosslinking caused a decrease of Young's modulus, which approaches the value of the human skin modulus. Swelling characteristics, water vapor transmission rate, and release kinetics demonstrated that these films are adequate for the proposed application. Finally, a scratch test on a keratinocytes monolayer showed that the rate of cell migration in the presence of OPU-loaded samples is about 3-fold higher compared to unloaded films, confirming the repairing activity of OPU.
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Affiliation(s)
- O Catanzano
- Institute for Polymers, Composites and Biomaterials (IPCB) - CNR, Via Campi Flegrei 34, Pozzuoli, Naples, Italy.
| | - G Gomez d'Ayala
- Institute for Polymers, Composites and Biomaterials (IPCB) - CNR, Via Campi Flegrei 34, Pozzuoli, Naples, Italy.
| | - A D'Agostino
- Department of Experimental Medicine, School of Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy.
| | - F Di Lorenzo
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126 Naples, Italy.
| | - C Schiraldi
- Department of Experimental Medicine, School of Medicine, University of Campania "Luigi Vanvitelli", Via L. De Crecchio 7, 80138 Naples, Italy.
| | - M Malinconico
- Institute for Polymers, Composites and Biomaterials (IPCB) - CNR, Via Campi Flegrei 34, Pozzuoli, Naples, Italy.
| | - R Lanzetta
- Department of Chemical Sciences, University of Naples "Federico II", Complesso Universitario Monte S. Angelo, Via Cinthia 4, 80126 Naples, Italy.
| | - F Bonina
- Department of Drug Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
| | - P Laurienzo
- Institute for Polymers, Composites and Biomaterials (IPCB) - CNR, Via Campi Flegrei 34, Pozzuoli, Naples, Italy.
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202
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Fibrinogen, collagen, and transferrin adsorption to poly(3,4-ethylenedioxythiophene)-xylorhamno-uronic glycan composite conducting polymer biomaterials for wound healing applications. Biointerphases 2021; 16:021003. [PMID: 33752337 DOI: 10.1116/6.0000708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
We present the conducting polymer poly (3,4-ethylenedioxythiophene) (PEDOT) doped with an algal-derived glycan extract, Phycotrix™ [xylorhamno-uronic glycan (XRU84)], as an innovative electrically conductive material capable of providing beneficial biological and electrical cues for the promotion of favorable wound healing processes. Increased loading of the algal XRU84 into PEDOT resulted in a reduced surface nanoroughness and interfacial surface area and an increased static water contact angle. PEDOT-XRU84 films demonstrated good electrical stability and charge storage capacity and a reduced impedance relative to the control gold electrode. A quartz crystal microbalance with dissipation monitoring study of protein adsorption (transferrin, fibrinogen, and collagen) showed that collagen adsorption increased significantly with increased XRU84 loading, while transferrin adsorption was significantly reduced. The viscoelastic properties of adsorbed protein, characterized using the ΔD/Δf ratio, showed that for transferrin and fibrinogen, a rigid, dehydrated layer was formed at low XRU84 loadings. Cell studies using human dermal fibroblasts demonstrated excellent cell viability, with fluorescent staining of the cell cytoskeleton illustrating all polymers to present excellent cell adhesion and spreading after 24 h.
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203
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Liu S, Jiang T, Guo R, Li C, Lu C, Yang G, Nie J, Wang F, Yang X, Chen Z. Injectable and Degradable PEG Hydrogel with Antibacterial Performance for Promoting Wound Healing. ACS APPLIED BIO MATERIALS 2021; 4:2769-2780. [PMID: 35014316 DOI: 10.1021/acsabm.1c00004] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Injectable and degradable PEG hydrogel was prepared via Michael-type addition between cross-linking monomer 4-arm-PEG-MAL and two cross-linkers of hydrolysis degradable PEG-diester-dithiol and non-degradable PEG-dithiol, and it had a porous structure with the uniform pore size. The biocompatibility assays in vitro indicated that PEG hydrogel had excellent biocompatibility and can be degraded naturally without leading to any negative impact on cells. The results of antibacterial experiments showed that PEG hydrogel can inhibit the growth of bacteria. Furthermore, the Cell Counting Kit-8 (CCK-8) assay, LIVE/DEAD cell staining, and scratch healing experiments proved that PEG hydrogel can promote cell proliferation and migration, which had been further confirmed in in vivo experiments on the rat wound models. All experimental results demonstrated that PEG hydrogel is an injectable antibacterial dressing, which can promote the process of wound healing and has great potential in the field of wound healing.
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Affiliation(s)
- Siju Liu
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Tao Jiang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Renqi Guo
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Chuang Li
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Cuifen Lu
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Guichun Yang
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Junqi Nie
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Feiyi Wang
- Hubei Collaborative Innovation Center for Advanced Organochemical Materials and Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, China
| | - Xiaofan Yang
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhenbing Chen
- Department of Hand Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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204
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Biocompatibility of the Biopolymer Cyanoflan for Applications in Skin Wound Healing. Mar Drugs 2021; 19:md19030147. [PMID: 33799836 PMCID: PMC8001550 DOI: 10.3390/md19030147] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/07/2021] [Accepted: 03/08/2021] [Indexed: 11/16/2022] Open
Abstract
There is a great demand for the development of novel wound dressings to overcome the time and costs of wound care performed by a vast number of clinicians, especially in the current overburdened healthcare systems. In this study, Cyanoflan, a biopolymer secreted by a marine unicellular cyanobacterium, was evaluated as a potential biomaterial for wound healing. Cyanoflan effects on cell viability, apoptosis, and migration were assessed in vitro, while the effect on tissue regeneration and biosafety was evaluated in healthy Wistar rats. The cell viability and apoptosis of fibroblasts and endothelial cells was not influenced by the treatment with different concentrations of Cyanoflan, as observed by flow cytometry. Moreover, the presence of Cyanoflan did not affect cell motility and migratory capacity, nor did it induce reactive oxygen species production, even revealing an antioxidant behavior regarding the endothelial cells. Furthermore, the skin wound healing in vivo assay demonstrated that Cyanoflan perfectly adapted to the wound bed without inducing systemic or local oxidative or inflammatory reaction. Altogether, these results suggest that Cyanoflan is a promising biopolymer for the development of innovative applications to overcome the many challenges that still exist in skin wound healing.
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205
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Feng J, Niu Y, Zhang Y, Zuo H, Wang S, Liu X. Ficus carica extract impregnated amphiphilic polymer scaffold for diabetic wound tissue regenerations. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2021; 49:219-229. [PMID: 33666536 DOI: 10.1080/21691401.2021.1890610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Diabetes associated injury healing and other tissue irregularities are viewed as a significant concern. The purpose of the study is to design the wound regeneration activity of Ficus carica extract (FFE) loaded amphiphilic polymeric scaffold of poly(xylitol-g-adipate-co-glutamide) (PXAG)-polyhydroxybutyrate (PHB) for potential diabetic affected wound regeneration. The PXAG copolymer was prepared by the condensation method, and the polymeric scaffolds of PXAG-PHB, PXAG-PHB/FFE were developed through the ultra-sonication process and magnetic stirrer processes. The chemical structure, crystalline nature, thermal stability, size, surface charge and surface morphology of PXAG-PHB and PXAG-PHB/FFE polymeric scaffolds were investigated. The PXAG-PHB/FFE exhibits 99.0% free radical scavenging activity which was determined by the DPPH method. The inhibition zones by the PXAG-PHB/FFE indicate it had a higher antibacterial activity with the Escherichia coli (gram-negative) and Staphylococcus aureus (gram-positive) pathogens. The PXAG, PXAG-PHB and PXAG-PHB/FFE polymeric scaffolds exhibited good viability against diabetic induced wound cells (WS1) in 100 μg/mL concentrations up to 72 h incubation. Since the synthesized PXAG-PHB/FFE polymeric scaffolds possess excellent thermal stability, bioactivity, biocompatibility and antioxidant activity along with potent antimicrobial activity, they play a potential role in diabetic wound tissue regenerations.
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Affiliation(s)
- Jia Feng
- Department of Endocrinology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Yu Niu
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Yi Zhang
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Hong Zuo
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Shujin Wang
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
| | - Xufeng Liu
- Department of Endocrinology, Ninth Hospital of Xi'an, Xi'an, China
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206
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Sanchez MF, Guzman ML, Apas AL, Alovero FDL, Olivera ME. Sustained dual release of ciprofloxacin and lidocaine from ionic exchange responding film based on alginate and hyaluronate for wound healing. Eur J Pharm Sci 2021; 161:105789. [PMID: 33684487 DOI: 10.1016/j.ejps.2021.105789] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 02/11/2021] [Accepted: 03/01/2021] [Indexed: 11/16/2022]
Abstract
This study presents a new antibiotic-anesthetic film (AA-film) based on natural polyelectrolytes ionically complexed with lidocaine and ciprofloxacin to manage pain associated with infected wounds. The rational selection of the components resulted in the AA-films being transparent, compatible with wound skin pH and highly water vapor permeable. The drug release properties evaluated in saline solution and water revealed an ionic exchange mechanism for the release of both drugs and showed that ciprofloxacin acts as a cross-linker, as was confirmed by rheological evaluation. The in vitro antimicrobial efficacy against S. aureus and P. aeruginosa was demonstrated. Furthermore, AA-films exhibit a high fluid absorption capacity and act as a physical barrier for microorganisms. This work highlights the great potential of this smart system as an attractive dressing for skin wounds, surpassing currently available treatments.
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Affiliation(s)
- María Florencia Sanchez
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - María Laura Guzman
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Ana Lidia Apas
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - Fabiana Del Lujan Alovero
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina
| | - María Eugenia Olivera
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica (UNITEFA), CONICET and Departamento de Ciencias Farmacéuticas, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000 Córdoba, Argentina.
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207
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Zhou S, Li L, Chen C, Chen Y, Zhou L, Zhou FH, Dong J, Wang L. Injectable gelatin microspheres loaded with platelet rich plasma improve wound healing by regulating early inflammation. Int J Med Sci 2021; 18:1910-1920. [PMID: 33850460 PMCID: PMC8040391 DOI: 10.7150/ijms.51060] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 02/15/2021] [Indexed: 12/26/2022] Open
Abstract
We investigated the potential of gelatin microspheres (GMs) loaded with platelet-rich plasma (PRP) to enhance their wound healing effect. Platelets from the PRP were immobilized onto GMs to form biomimetic bioreactor GM+PRP. The therapeutic effect of this agent was further investigated in vivo on a wound-healing model in rats. Wounds were locally injected with phosphate buffered saline (PBS), GM, PRP, and GM+PRP. Wound healing rate, vessel density, and inflammation level were measured histologically, by RT-PCR, and by Western blotting at days 3, 7, 14, and 21. Platelets on GM caused a continuous high release in both interleukin-10 and metalloproteinase-3 compared with PRP alone. Both GM+PRP and PRP successfully accelerated the wound healing process, while GM alone did not improve the wound healing process compared with the untreated control. Wounds treated with GM+PRP resulted in shorter healing period and improved dermal structure. GM+PRP improved angiogenesis in the wound by increasing expression of angiogenic factors. GM+PRP prolonged and enhanced the cytokine release profile compared with PRP. By promoting the inflammatory and angiogenic responses, GM+PRP has the potential to improve wound healing. Our findings demonstrate that GMs are an injectable carrier that enhanced the therapeutic effects of PRP.
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Affiliation(s)
- Shaolong Zhou
- Aesthetic Medical School, Yichun University, Yichun, 336000, Jiangxi, China
| | - Li Li
- Aesthetic Medical School, Yichun University, Yichun, 336000, Jiangxi, China
| | - Chen Chen
- Aesthetic Medical School, Yichun University, Yichun, 336000, Jiangxi, China
| | - Yi Chen
- Aesthetic Medical School, Yichun University, Yichun, 336000, Jiangxi, China
| | - Linhua Zhou
- Aesthetic Medical School, Yichun University, Yichun, 336000, Jiangxi, China
| | - Fiona H. Zhou
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
- School of Medicine, University of Adelaide, Adelaide, South Australia, 5000, Australia
| | - Jianghui Dong
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
| | - Liping Wang
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5001, Australia
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208
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Miranda ÍKSPB, Santana FR, Camilloto GP, Detoni CB, Souza FVD, Cabral-Albuquerque ECDM, Alves SL, Neco GL, Lima FOD, Assis SAD. Development of membranes based on carboxymethyl cellulose/acetylated arrowroot starch containing bromelain extract carried on nanoparticles and liposomes. J Pharm Sci 2021; 110:2372-2378. [PMID: 33662391 DOI: 10.1016/j.xphs.2021.02.031] [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: 05/27/2020] [Revised: 02/25/2021] [Accepted: 02/25/2021] [Indexed: 10/22/2022]
Abstract
Polymeric membranes have been used in several applications, including their use as curatives in cutaneous wounds. Bromelain has long been used for anti-inflammatory purposes, so the objective of this work was to produce carboxymethylcellulose-acetylated blends, incorporate bromelain, characterize the systems, compare the blends with bromelain loaded in nanoparticles and liposomes and, finally, to evaluate their healing potential. Four membrane formulations were produced by solvent evaporation: the control, membranes containing free bromelain, bromelain-loaded nanoparticles (NPs) and bromelain-loaded liposomes (LIPs). The enzyme concentration was the same for all formulations. Transparent, flexible and intact films were obtained. The membranes containing free bromelain, bromelain-loaded NPs and bromelain-loaded LIPs had higher water content, lower water vapor permeability and maximum tensile strength, and greater elongation at rupture. The capacity to absorb simulated exudate was higher in samples containing free bromelain, and bioadhesion was reduced in the presence of free bromelain compared to the control. An in vivo assay was performed to verify the membranes' healing potential. Histological analysis revealed no edema on the 14th day in animals treated with membranes containing bromelain-loaded NPs and LIPs.
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Affiliation(s)
| | - Fernando Rocha Santana
- Health Department, State University of Feira de Santana, Av. Transnordestina, s/n - Novo Horizonte, Feira de Santana - BA, Brazil, CEP 44036-900
| | - Geany Peruch Camilloto
- Technology Department, State University of Feira de Santana, Av. Transnordestina, s/n - Novo Horizonte, Feira de Santana - BA, Brazil, CEP 44036-900
| | - Cassia Britto Detoni
- Pharmacy Department - Campus Macaé, Federal University of Rio de Janeiro, Av. Aluizio da Silva Gomes, 50 - Novo Cavaleiros, Macaé - RJ, Brazil, CEP 27930-560
| | - Fernanda Vidigal Duarte Souza
- EMBRAPA - Empresa Brasileira de Pesquisa Agropecuária, R. Embrapa, s/n - Chapadinha, Cruz das Almas - BA, Brazil, CEP 44380-000
| | | | - Sara Lima Alves
- Health Department, State University of Feira de Santana, Av. Transnordestina, s/n - Novo Horizonte, Feira de Santana - BA, Brazil, CEP 44036-900
| | - Glaucia Lais Neco
- Health Department, State University of Feira de Santana, Av. Transnordestina, s/n - Novo Horizonte, Feira de Santana - BA, Brazil, CEP 44036-900
| | - Flávia Oliveira de Lima
- Health Department, State University of Feira de Santana, Av. Transnordestina, s/n - Novo Horizonte, Feira de Santana - BA, Brazil, CEP 44036-900
| | - Sandra Aparecida de Assis
- Health Department, State University of Feira de Santana, Av. Transnordestina, s/n - Novo Horizonte, Feira de Santana - BA, Brazil, CEP 44036-900.
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209
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Tian MP, Zhang AD, Yao YX, Chen XG, Liu Y. Mussel-inspired adhesive and polypeptide-based antibacterial thermo-sensitive hydroxybutyl chitosan hydrogel as BMSCs 3D culture matrix for wound healing. Carbohydr Polym 2021; 261:117878. [PMID: 33766365 DOI: 10.1016/j.carbpol.2021.117878] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 02/01/2021] [Accepted: 02/26/2021] [Indexed: 12/19/2022]
Abstract
Hydrogels have gained great attentions as wound dressing. Binding to the tissue and preventing wound infection were the basic requirements for an "ideal dressing". We employed l-DOPA and ε-Poly-l-lysine to modify thermo-sensitive hydroxybutyl chitosan (HBC) to obtain (l-DOPA) - (ε-Poly-l-lysine)-HBC hydrogels (eLHBC). The eLHBC exhibited an almost 1.5 fold (P < 0.01) increase in wet adhesion strength compared to HBC. Upon the introduction of ε-Poly-l-lysine, eLHBC presented inherent antimicrobial property and prevented wound infection and inflammation response. Bone marrow mesenchymal stem cells (BMSCs) encapsulated in the eLHBC (BMSCs ⊂ eLHBC) could secret cytokins and growth factors via paracrine and promote the migration of fibroblast cells. BMSCs ⊂ eLHBC enhanced the complete skin-thickness wound healing via promoting collagen deposition and inhibiting infection and inflammation in vivo with wound closure rate being above 99 % after 15 days. The bioinspired, tissue-adhesive eLHBC could serve as advanced wound dressings for facilitating tissue repair and regeneration.
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Affiliation(s)
- Mei-Ping Tian
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, PR China
| | - An-Di Zhang
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, PR China
| | - Ying-Xia Yao
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, PR China
| | - Xi-Guang Chen
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, PR China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266000, PR China
| | - Ya Liu
- College of Marine Life Science, Ocean University of China, Qingdao, 266003, PR China.
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210
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Hernández-Rangel A, Martin-Martinez ES. Collagen based electrospun materials for skin wounds treatment. J Biomed Mater Res A 2021; 109:1751-1764. [PMID: 33638606 DOI: 10.1002/jbm.a.37154] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 12/12/2022]
Abstract
Materials used for wound care have evolved from simple covers to functional wound dressings with bioactive properties. Electrospun nanofibers show great similarity to the natural fibrillar structure of skin extracellular matrix (ECM); therefore, by mimic, the morphology of ECM, nanofibers show high potential for facilitating the healing of skin injuries. Besides morphology, scaffold composition is another important parameter in the production of bioactive wound dressings. Collagen type I is the main structural protein of skin ECM is biocompatible, biodegradable, and its extraction from animal sources is relatively simple. The fabrication of electrospun wound dressings based on collagen and its blends have been studied for skin tissue engineering applications. This review focus on the new advances of collagen electrospun materials for skin wound treatment. It summarizes the recent research on pristine collagen, collagen blends, and collagen surface modifications on nanofibers mats. Finally, the strategies for three-dimensional nanofibers production will also be discussed.
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Affiliation(s)
- A Hernández-Rangel
- Instituto Politécnico Nacional-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Laboratorio de Biomateriales, Ciudad de México, Mexico
| | - E San Martin-Martinez
- Instituto Politécnico Nacional-Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Laboratorio de Biomateriales, Ciudad de México, Mexico
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211
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Nanotechnology Development for Formulating Essential Oils in Wound Dressing Materials to Promote the Wound-Healing Process: A Review. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11041713] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Wound healing refers to the replacement of damaged tissue through strongly coordinated cellular events. The patient’s condition and different types of wounds complicate the already intricate healing process. Conventional wound dressing materials seem to be insufficient to facilitate and support this mechanism. Nanotechnology could provide the physicochemical properties and specific biological responses needed to promote the healing process. For nanoparticulate dressing design, growing interest has focused on natural biopolymers due to their biocompatibility and good adaptability to technological needs. Polysaccharides are the most common natural biopolymers used for wound-healing materials. In particular, alginate and chitosan polymers exhibit intrinsic antibacterial and anti-inflammatory effects, useful for guaranteeing efficient treatment. Recent studies highlight that several natural plant-derived molecules can influence healing stages. In particular, essential oils show excellent antibacterial, antifungal, antioxidant, and anti-inflammatory properties that can be amplified by combining them with nanotechnological strategies. This review summarizes recent studies concerning essential oils as active secondary compounds in polysaccharide-based wound dressings.
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212
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S C, S B. Insight into the impingement of different sodium precursors on structural, biocompatible, and hemostatic properties of bioactive materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 123:111959. [PMID: 33812587 DOI: 10.1016/j.msec.2021.111959] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 01/30/2021] [Accepted: 02/08/2021] [Indexed: 11/27/2022]
Abstract
Bioactive materials play a significant role in biomedical engineering for plethora of applications. To date, there is no evident report on the role of sodium precursors in structural changes towards their acceleration in biocompatibility. This study highlights the impact and role of two different sodium precursors (sodium nitrate and sodium hydroxide) on the structural changes and their potential formulations in biomineralization and biocompatibility. Structural characteristics enunciate the significant crystallization of NaCaPO4, Na2Ca2Si3O9, and Na1.8Ca1.1Si6O14 phases with pertinent Q2 stretching's while using sodium nitrate than sodium hydroxide. XPS spectra authenticate the elevated sodium content while using sodium nitrate as sodium precursor. One-dimensional structures with well faceted morphology and superior alkaline environment preferentially support the biomineralization and bactericidal properties in sodium nitrate-bioglass, was confirmed through structural, morphological, elemental, and antibacterial investigations. Whereas, higher blood and cell-line compatibility with elevated protein adsorption rate is perceived for the bioglass prepared using sodium hydroxide source, and subsequently, higher hemostatic properties are considerably observed with sodium nitrate-bioglass. Higher mechanical stability (ultrasonic measurements) and controlled degradation rate are the stratagems of sodium nitrate to boost the basic criteria of bioactive materials. Hence, it is proposed that sodium nitrate is a highly preferable source to develop bioactive and stable bioglass formulations.
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Affiliation(s)
- Chitra S
- National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 600025, India
| | - Balakumar S
- National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 600025, India.
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213
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Barbosa da Silva S, Salani R, de Cássia Ferreira R, Gazote Eloy Geraldo Y, Pavani C, Setúbal Destro Rodrigues MF, Motta LJ, Fátima Teixeira Silva D. Can Photons Pass through Primary Coatings Used to Treat Cutaneous Wounds? Adv Skin Wound Care 2021; 34:97-102. [PMID: 33259349 DOI: 10.1097/01.asw.0000721440.25562.a3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To determine the transmittance spectrum of primary dressings commonly used in the treatment of cutaneous wounds to verify if there is a real need to remove them during photobiomodulation. METHODS Spectroscopic analysis was performed on 17 dressings using a spectrophotometer (USB 2000+; OceanOptics, Delray Beach, Florida). A piece of each dressing was inserted into a quartz cuvette; the reflection from the slide walls was corrected for using a 0.9% saline solution to completely fill the cuvette (baseline). The transmittance of each dressing was measured between 350 and 950 nm, and a transmittance table was created based on the main wavelengths used in photobiomodulation. RESULTS Six dressings (Supriderme, Membracel, Cuticell Contact, UrgoTul, Tegaderm, and Opsite Flexigrid) have a transmittance greater than 50% in most of the spectral range and therefore may remain on wounds during irradiation. CONCLUSIONS It may not always be necessary to remove a primary dressing when lasers or LED lights are used to treat wounds. It is the authors' hope that the results of this article will increase the effectiveness of both photobiomodulation and primary dressings and reduce patient discomfort as well as the cost of primary dressings via a reduction in unnecessary dressing changes.
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Affiliation(s)
- Stefania Barbosa da Silva
- At the Nove de Julho University, São Paulo, Brazil, Stefania Barbosa da Silva, MSc, is OR Nurse; Renata Salani, MSc, is Physiotherapist; Rita de Cássia Ferreira, MSc, is Doctoral Student; Yhago Gazote Eloy Geraldo, BS, is Civil Engineer; Christiane Pavani, PhD, is Professor and Researcher; Maria Fernanda Setúbal Destro Rodrigues, PhD, is Professor; Lara J. Motta, PhD, is Professor; and Daniela Fátima Teixeira Silva, PhD, is Professor and Researcher. Acknowledgments: The authors thank Aline Cristine Ferreira Gonçalves, Oscar Soares Ramos De Araujo, and Jonas Azevedo Iglesias for their help in tabulating the data. This study received funding from the São Paulo State Foundation for Research Support (#2015/05259-8). The authors have disclosed no other financial relationships related to this article. Submitted October 30, 2019; accepted in revised form January 23, 2020; published online ahead of print November 30, 2020
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214
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Netanel Liberman G, Ochbaum G, Bitton R, (Malis) Arad S. Antimicrobial hydrogels composed of chitosan and sulfated polysaccharides of red microalgae. POLYMER 2021. [DOI: 10.1016/j.polymer.2020.123353] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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215
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Tang RZ, Liu ZZ, Gu SS, Liu XQ. Multiple local therapeutics based on nano-hydrogel composites in breast cancer treatment. J Mater Chem B 2021; 9:1521-1535. [PMID: 33474559 DOI: 10.1039/d0tb02737e] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The locoregional recurrence of breast cancer after tumor resection represents several clinical challenges, and conventional post-surgical adjuvant therapeutics always bring about significant systemic side effects. Thus, the local therapy strategy has received considerable interest in breast cancer treatment, and hydrogels can function as ideal platforms due to their remarkable properties such as good biocompatibility, biodegradability, flexibility, and multifunctionality. The nano-hydrogel composites can further incorporate the advantages of nanomaterials into the hydrogel system, to fabricate hierarchical structures for stimulating controlled multi-stage release of different therapeutic agents and improving the synergistic effects of combination therapy. In this review, the problems of clinical treatments of breast cancer and properties of hydrogels in current biomedical applications are briefly overviewed. The focus is on recent advances in local therapy based on nano-hydrogel composites for both monotherapy (chemotherapy, photothermal and photodynamic therapy) and combination therapy (dual chemotherapy, photothermal chemotherapy, photothermal immunotherapy, radio-chemotherapy). Moreover, the challenges and perspectives in the development of advanced nano-hydrogel systems are also discussed.
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Affiliation(s)
- Rui-Zhi Tang
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China
| | - Zhen-Zhen Liu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China.
| | - Sai-Sai Gu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China.
| | - Xi-Qiu Liu
- School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, P. R. China.
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216
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Resch A, Staud C, Radtke C. Nanocellulose-based wound dressing for conservative wound management in children with second-degree burns. Int Wound J 2021; 18:478-486. [PMID: 33465280 PMCID: PMC8273580 DOI: 10.1111/iwj.13548] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/19/2020] [Accepted: 12/31/2020] [Indexed: 01/08/2023] Open
Abstract
The initial care of burn wounds and choice of dressing are pivotal to optimally support the healing process. To ensure fast re-epithelialisation within 10-14 days and prevent complications, an optimal healing environment is essential. An innovative dressing based on nanocellulose was used for the treatment of burns in children. Children (0-16 years) with clean, partial-thickness burn wounds, 1 to 10% of the total body surface area were included. Complete re-epithelialisation was achieved within 7-17 days, with 13 patients showing re-epithelialised >95% by day 10. Satisfying results concerning time to re-epithelialisation and material handling were obtained. The possibility to leave the dressing on the wounds for 7 days showed a positive effect in the treatment of children, for whom every hospital visit may cause massive stress reactions. The nanocellulose-based dressing is a promising tool in conservative treatment of burns. Reducing the frequency of dressing changes supports a fast and undisturbed recovery; moreover, the dressing provides an optimal moist healing environment. The time to re-epithelialisation is comparable to frequently used materials, and cost reduction effect can be achieved without loss of quality. Possible pain and distress levels are kept to a minimum; therefore, flexibility and compliance of the patients and their parents are enhanced.
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Affiliation(s)
- Annika Resch
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Clement Staud
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - Christine Radtke
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Medical University of Vienna, Vienna, Austria
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217
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Lepry WC, Nazhat SN. A Review of Phosphate and Borate Sol–Gel Glasses for Biomedical Applications. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202000055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- William C. Lepry
- Department of Mining and Materials Engineering McGill University 3610 Rue University Montreal QC H3A 0C5 Canada
| | - Showan N. Nazhat
- Department of Mining and Materials Engineering McGill University 3610 Rue University Montreal QC H3A 0C5 Canada
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218
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David J, Mahanty B. Optimized ciprofloxacin release from citric acid crosslinked starch-PVA hydrogel film: modelling with mixture design. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-020-02397-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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219
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Catanzano O, Quaglia F, Boateng JS. Wound dressings as growth factor delivery platforms for chronic wound healing. Expert Opin Drug Deliv 2021; 18:737-759. [PMID: 33338386 DOI: 10.1080/17425247.2021.1867096] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Introduction: Years of tissue engineering research have clearly demonstrated the potential of integrating growth factors (GFs) into scaffolds for tissue regeneration, a concept that has recently been applied to wound dressings. The old concept of wound dressings that only take a passive role in wound healing has now been overtaken, and advanced dressings which can take an active part in wound healing, are of current research interest.Areas covered: In this review we will focus on the recent strategies for the delivery of GFs to wound sites with an emphasis on the different approaches used to achieve fine tuning of spatial and temporal concentrations to achieve therapeutic efficacy.Expert opinion: The use of GFs to accelerate wound healing and reduce scar formation is now considered a feasible therapeutic approach in patients with a high risk of infections and complications. The integration of micro - and nanotechnologies into wound dressings could be the key to overcome the inherent instability of GFs and offer adequate control over the release rate. Many investigations have led to encouraging outcomes in various in vitro and in vivo wound models, and it is expected that some of these technologies will satisfy clinical needs and will enter commercialization.
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Affiliation(s)
- Ovidio Catanzano
- Institute for Polymers Composites and Biomaterials (IPCB) - CNR, Pozzuoli, Italy
| | - Fabiana Quaglia
- Drug Delivery Laboratory, Department of Pharmacy, University of Napoli Federico II, Naples, Italy
| | - Joshua S Boateng
- School of Science, Faculty of Engineering and Science, University of Greenwich, Medway, Central Avenue, Chatham Maritime, Kent, UK
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220
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Lou P, Liu S, Xu X, Pan C, Lu Y, Liu J. Extracellular vesicle-based therapeutics for the regeneration of chronic wounds: current knowledge and future perspectives. Acta Biomater 2021; 119:42-56. [PMID: 33161186 DOI: 10.1016/j.actbio.2020.11.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/20/2020] [Accepted: 11/02/2020] [Indexed: 02/07/2023]
Abstract
Chronic wounds are still an intractable medical problem for both clinicians and researchers and cause a substantial social and medical burden. Current clinical approaches can only manage wounds but have limited capacity to promote the regeneration of chronic wounds. As a type of natural nanovesicle, extracellular vesicles (EVs) from multiple cell types (e.g., stem cells, immune cells, and skin cells) have been shown to participate in all stages of skin wound healing including inflammation, proliferation, and remodeling, and display beneficial roles in promoting wound repair. Moreover, EVs can be further re-engineered with genetic/chemical or scaffold material-based strategies for enhanced skin regeneration. In this review, we provide an overview of EV biology and discuss the current findings regarding the roles of EVs in chronic wound healing, particularly in immune regulation, cell proliferation and migration, angiogenesis, and extracellular matrix remodeling, as well as the therapeutic effects of EVs on chronic wounds by genetic modification, in combination with functionalized biomaterials, and as drug carriers. We also discuss the challenges and perspectives of translating EV-based therapies into clinical wound care in the future.
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221
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Asanarong O, Minh Quan V, Boonrungsiman S, Sukyai P. Bioactive wound dressing using bacterial cellulose loaded with papain composite: Morphology, loading/release and antibacterial properties. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2020.110224] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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222
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Xiong Y, Zhang X, Ma X, Wang W, Yan F, Zhao X, Chu X, Xu W, Sun C. A review of the properties and applications of bioadhesive hydrogels. Polym Chem 2021. [DOI: 10.1039/d1py00282a] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Due to their outstanding properties, bioadhesive hydrogels have been extensively studied by researchers in recent years.
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Affiliation(s)
- Yingshuo Xiong
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Xiaoran Zhang
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Xintao Ma
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Wenqi Wang
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Feiyan Yan
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Xiaohan Zhao
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Xiaoxiao Chu
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Wenlong Xu
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
| | - Changmei Sun
- School of Chemistry and Materials Science
- Ludong University
- Yantai 264025
- China
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223
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Li Z, Chen S, Wu B, Liu Z, Cheng L, Bao Y, Ma Y, Chen L, Tong X, Dai F. Multifunctional Dual Ionic-Covalent Membranes for Wound Healing. ACS Biomater Sci Eng 2020; 6:6949-6960. [DOI: 10.1021/acsbiomaterials.0c01512] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zhi Li
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
| | - Sihao Chen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
| | - Baiqing Wu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University, Chongqing 400715, China
| | - Zulan Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
| | - Lan Cheng
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University, Chongqing 400715, China
| | - Yu Bao
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University, Chongqing 400715, China
| | - Yan Ma
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University, Chongqing 400715, China
| | - Lei Chen
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
| | - Xiaoling Tong
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University, Chongqing 400715, China
| | - Fangyin Dai
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing 400715, China
- Chongqing Engineering Research Center of Biomaterial Fiber and Modern Textile, College of Textile and Garment, Southwest University, Chongqing 400715, China
- Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, College of Biotechnology, Southwest University, Chongqing 400715, China
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224
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Zhang A, Liu Y, Qin D, Sun M, Wang T, Chen X. Research status of self-healing hydrogel for wound management: A review. Int J Biol Macromol 2020; 164:2108-2123. [DOI: 10.1016/j.ijbiomac.2020.08.109] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/30/2020] [Accepted: 08/12/2020] [Indexed: 12/12/2022]
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225
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Corduas F, Mancuso E, Lamprou DA. Long-acting implantable devices for the prevention and personalised treatment of infectious, inflammatory and chronic diseases. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101952] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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226
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Barnum L, Samandari M, Schmidt TA, Tamayol A. Microneedle arrays for the treatment of chronic wounds. Expert Opin Drug Deliv 2020; 17:1767-1780. [PMID: 32882162 PMCID: PMC7722049 DOI: 10.1080/17425247.2020.1819787] [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: 07/08/2020] [Accepted: 09/02/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Chronic wounds are seen frequently in diabetic and bedbound patients. Such skin injuries, which do not heal in a timely fashion, can lead to life-threatening conditions. In an effort to resolve the burdens of chronic wounds, numerous investigations have explored the efficacy of various therapeutics on wound healing. Therapeutics can be topically delivered to cutaneous wounds to reduce the complications associated with systemic drug delivery because the compromised skin barrier is not expected to negatively affect drug distribution. However, researchers have recently demonstrated that the complex environment of chronic wounds could lower the localized availability of the applied therapeutics. Microneedle arrays (MNAs) can be exploited to enhance delivery efficiency and consequently improved healing. AREAS COVERED In this review, we briefly describe the pathophysiology of chronic wounds and current treatment strategies. We further introduce methods and materials commonly used for the fabrication of MNAs. Subsequently, the studies demonstrating the benefits of MNAs in wound care are highlighted. EXPERT OPINION Microneedles have great potential to treat the complicated pathophysiology of chronic wounds. Challenges that will need to be addressed include development of a robust chronic wound model and MNAs that combine complex functionality with simplicity of use.
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Affiliation(s)
- Lindsay Barnum
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Mohamadmahdi Samandari
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Tannin A. Schmidt
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
| | - Ali Tamayol
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, CT, 06030, USA
- Department of Mechanical and Materials Engineering, University of Nebraska, Lincoln, NE, 68588, USA
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227
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Bergonzi C, d'Ayala GG, Elviri L, Laurienzo P, Bandiera A, Catanzano O. Alginate/human elastin-like polypeptide composite films with antioxidant properties for potential wound healing application. Int J Biol Macromol 2020; 164:586-596. [DOI: 10.1016/j.ijbiomac.2020.07.084] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/18/2020] [Accepted: 07/09/2020] [Indexed: 02/03/2023]
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228
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Aliabadi M, Chee BS, Matos M, Cortese YJ, Nugent MJD, de Lima TAM, Magalhães WLE, de Lima GG. Yerba Mate Extract in Microfibrillated Cellulose and Corn Starch Films as a Potential Wound Healing Bandage. Polymers (Basel) 2020; 12:E2807. [PMID: 33260883 PMCID: PMC7761128 DOI: 10.3390/polym12122807] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 11/25/2022] Open
Abstract
Microfibrillated cellulose films have been gathering considerable attention due to their high mechanical properties and cheap cost. Additionally, it is possible to include compounds within the fibrillated structure in order to confer desirable properties. Ilex paraguariensis A. St.-Hil, yerba mate leaf extract has been reported to possess a high quantity of caffeoylquinic acids that may be beneficial for other applications instead of its conventional use as a hot beverage. Therefore, we investigate the effect of blending yerba mate extract during and after defibrillation of Eucalyptus sp. bleached kraft paper by ultrafine grinding. Blending the extract during defibrillation increased the mechanical and thermal properties, besides being able to use the whole extract. Afterwards, this material was also investigated with high content loadings of starch and glycerine. The results present that yerba mate extract increases film resistance, and the defibrillated cellulose is able to protect the bioactive compounds from the extract. Additionally, the films present antibacterial activity against two known pathogens S. aureus and E. coli, with high antioxidant activity and increased cell proliferation. This was attributed to the bioactive compounds that presented faster in vitro wound healing, suggesting that microfibrillated cellulose (MFC) films containing extract of yerba mate can be a potential alternative as wound healing bandages.
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Affiliation(s)
- Meysam Aliabadi
- Department of Paper Sciences and Engineering, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan 00386, Iran;
| | - Bor Shin Chee
- Materials Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (B.S.C.); (Y.J.C.); (M.J.D.N.); (T.A.M.d.L.)
| | - Mailson Matos
- Embrapa Florestas, Colombo 00319, Brazil; (M.M.); (W.L.E.M.)
| | - Yvonne J. Cortese
- Materials Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (B.S.C.); (Y.J.C.); (M.J.D.N.); (T.A.M.d.L.)
| | - Michael J. D. Nugent
- Materials Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (B.S.C.); (Y.J.C.); (M.J.D.N.); (T.A.M.d.L.)
| | - Tielidy A. M. de Lima
- Materials Research Institute, Athlone Institute of Technology, N37 HD68 Athlone, Ireland; (B.S.C.); (Y.J.C.); (M.J.D.N.); (T.A.M.d.L.)
| | | | - Gabriel Goetten de Lima
- Programa de Pós-Graduação em Engenharia e Ciência dos Materiais—PIPE, Universidade Federal do Paraná, Curitiba, Paraná 19011, Brazil
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229
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Zheng L, Li S, Luo J, Wang X. Latest Advances on Bacterial Cellulose-Based Antibacterial Materials as Wound Dressings. Front Bioeng Biotechnol 2020; 8:593768. [PMID: 33330424 PMCID: PMC7732461 DOI: 10.3389/fbioe.2020.593768] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/27/2020] [Indexed: 12/17/2022] Open
Abstract
At present, there are various wound dressings that can protect the wound from further injury or isolate the external environment in wound treatment. Whereas, infection and slow self-healing still exist in wound healing process. Therefore, it is urgent to develop an ideal wound dressing with good biocompatibility and strong antibacterial activity to promote wound healing. Bacterial cellulose is a kind of promising biopolymer because it can control wound exudate and provide a moist environment for wound healing. However, the lack of antibacterial activity limits its application. In this paper, the advantages of bacterial cellulose as wound dressings were introduced, and the preparation and research progress of bacterial cellulose-based antibacterial composites in recent years were reviewed, including adding antibiotics, combining with inorganic antibacterial agents or organic antibacterial agents. Finally, the existing problems and future development direction of bacterial cellulose-based antibacterial wound dressings were discussed.
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Affiliation(s)
- Lu Zheng
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
| | - Shanshan Li
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
| | - Jiwen Luo
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry and Environment, South China Normal University, Guangzhou, China
| | - Xiaoying Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou, China
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230
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Sustained-release hydrogels of ivermectin as alternative systems to improve the treatment of cutaneous leishmaniasis. Ther Deliv 2020; 11:779-790. [PMID: 33198601 DOI: 10.4155/tde-2020-0090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Leishmaniasis is a neglected tropical disease and its cutaneous form manifests as ulcers or nodules, generally in exposed parts of the body. This work aimed to develop ivermectin (IVM) thermosensitive hydrogels as topical formulations to improve cutaneous leishmaniasis treatment. Materials & methods: Hydrogels based on poloxamers 407 and 188 with different concentrations of IVM were prepared and rheologically characterized. The IVM release profiles were obtained and mathematically analyzed using the Lumped model. Results: The formulation containing 1.5% w/w of IVM presented an adequate gelling temperature, an optimal complex viscosity and elastic modulus. Hydrogels allowed to modulate the release of IVM. Conclusion: IVM thermosensitive hydrogels can be considered a valuable alternative to improve the treatment of cutaneous leishmaniasis.
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231
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Hosny KM, Alhakamy NA, Sindi AM, Khallaf RA. Coconut Oil Nanoemulsion Loaded with a Statin Hypolipidemic Drug for Management of Burns: Formulation and In Vivo Evaluation. Pharmaceutics 2020; 12:pharmaceutics12111061. [PMID: 33171816 PMCID: PMC7695003 DOI: 10.3390/pharmaceutics12111061] [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: 10/22/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/19/2022] Open
Abstract
Burn wound healing is a complex process that involves the repair of injured tissues and the control of infection to diminish the scar formation, pain, and discomfort associated with such injuries. The aim of this research was to formulate and optimize a self-nanoemulsion drug delivery system based on the use of coconut oil and loaded with simvastatin. Coconut oil possesses antiinflammatory and antibacterial activity, and simvastatin has interesting properties for promoting the wound-healing process because it increases the production of the vascular endothelial growth factor at the site of injury. The Box–Behnken design was employed for the optimization of the coconut oil–simvastatin self-nanoemulsion drug delivery system. The prepared formulations were characterized according to globular size and their activity in the healing of burn wounds by assessing the mean wound diameter and level of interlukin-6 in experimental animals. Additionally, the antimicrobial activity of the prepared formulations was assessed. The nanoemulsion was considered adequately formed when it had droplets of between 65 and 195 nm. The statistical design proved the important synergistic effect of coconut oil and simvastatin for burn wound management in their synergistic potentiation of wound closure and their anti-inflammatory and antimicrobial effects. The optimum formulation achieved up to a 5.3-fold decrease in the mean burn wound diameter, a 4.25-fold decrease in interleukin-6 levels, and a 6-fold increase in the inhibition zone against Staphylococcus aureus when compared with different control formulations. Therefore, the designed nanoemulsions containing a combination of coconut oil and simvastatin could be considered promising platforms for the treatment of chronic and burn wounds.
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Affiliation(s)
- Khaled M. Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
- Correspondence:
| | - Nabil A. Alhakamy
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Center of Excellence for Drug Research and Pharmaceutical Industries, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Amal M. Sindi
- Oral Diagnostic Science Department, Faculty of Dentistry, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Rasha A. Khallaf
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
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232
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Sabzevari R, Roushandeh AM, Mehdipour A, Alini M, Roudkenar MH. SA/G hydrogel containing hCAP-18/LL-37-engineered WJ-MSCs-derived conditioned medium promoted wound healing in rat model of excision injury. Life Sci 2020; 261:118381. [DOI: 10.1016/j.lfs.2020.118381] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/18/2020] [Accepted: 08/31/2020] [Indexed: 12/20/2022]
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233
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Shen T, Dai K, Yu Y, Wang J, Liu C. Sulfated chitosan rescues dysfunctional macrophages and accelerates wound healing in diabetic mice. Acta Biomater 2020; 117:192-203. [PMID: 33007486 DOI: 10.1016/j.actbio.2020.09.035] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 08/31/2020] [Accepted: 09/22/2020] [Indexed: 12/13/2022]
Abstract
Emerging evidence suggests that dysfunctional macrophages can cause chronic inflammation and impair tissue regeneration in diabetic wounds. Therefore, improving macrophage behaviors and functions may improve therapeutic outcomes of current treatments in diabetic wounds. Herein, we present a sulfated chitosan (SCS)-doped Collagen type I (Col I/SCS) hydrogel as a candidate for diabetic wound treatments, and assess its efficacy using streptozocin (STZ)-induced diabetic wound model. Results showed that Col I/SCS hydrogel significantly improved wound closure rate, collagen deposition, and revascularization in diabetic wounds. Flow cytometry analysis and immunofluorescent staining analysis showed that the Col I/SCS hydrogel accelerated the resolution of excessive inflammation by reducing the polarization of M1-like macrophages in chronic diabetic wounds. In addition, ELISA analysis revealed that the Col I/SCS hydrogel reduced the production of pro-inflammatory interleukin (IL)-6 and increased the production of anti-inflammatory cytokines including IL-4 and transforming growth factor-beta 1 (TGF-β1) during wound healing. Moreover, the Col I/SCS hydrogel enhanced the transdifferentiation of macrophages into fibroblasts, which enhanced the formation of collagen and the extracellular matrix (ECM) in wound tissue. We highlight a potential application of manipulating macrophages behaviors in the pathological microenvironment via materials strategy. STATEMENT OF SIGNIFICANCE: Improving the chronic inflammatory microenvironment of diabetic wounds by regulating macrophage behaviors has been of wide concern in recent years. We designed a Col I/SCS hydrogel based on Collagen type I and sulfated chitosan (SCS) without exogenous cells or cytokines, which could significantly improve angiogenesis and resolve chronic inflammation in diabetic wounds, and hence accelerate diabetic wound healing. The Col I/SCS hydrogel could facilitate the polarization of M1-to-M2 macrophages and activate the transdifferentiation of macrophages to fibroblasts. Additionally, the Col I/SCS hydrogel also equilibrated the content of pro-inflammatory and anti-inflammatory cytokines. This strategy may afford a new avenue to improve macrophage functions and accelerate diabetic chronic wound healing.
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Affiliation(s)
- Tong Shen
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR. China
| | - Kai Dai
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR. China
| | - Yuanman Yu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR. China
| | - Jing Wang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR. China.
| | - Changsheng Liu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, PR. China.
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234
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Teaima MH, Abdelnaby FA, Fadel M, El-Nabarawi MA, Shoueir KR. Synthesis of Biocompatible and Environmentally Nanofibrous Mats Loaded with Moxifloxacin as a Model Drug for Biomedical Applications. Pharmaceutics 2020; 12:E1029. [PMID: 33126627 PMCID: PMC7693921 DOI: 10.3390/pharmaceutics12111029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/21/2020] [Accepted: 10/26/2020] [Indexed: 12/27/2022] Open
Abstract
Biopolymeric chitosan structure (Cs) is rationally investigated owing to its potentiality in pharmaceutical applications. The synthetic routes of biomimetic Cs-based blend electrospun nanofibers were studied. Herein, biocompatible crosslinked electrospun polyvinyl alcohol (PVA)/Cs-reduced gold nanoparticles (Cs(Rg))/β-CD (beta-cyclodextrin) in pure water were fabricated. To this end, supportive PVA as a carrier, Cs bio modifier, and gold reductant and β-CD as smoother, inclusion guest molecule, and capping agent exhibit efficient entrapment of moxifloxacin (Mox) and consequently accelerate release. Besides, PVA/Cs(Rg)/β-CD paves towards controlled drug encapsulation-release affinity, antimicrobial, and for wound dressing. Without losing the nanofiber structure, the webs prolonged stability for particle size and release content up to 96.4%. The synergistic effect of the nanoformulation PVA/Cs(Rg)/β-CD against pathogenic bacteria, fungus, and yeast, including Staphylococcus aureus, Escherichia coli, Candida albicans, and Aspergillus niger, posed clear zones up to 53 φmm. Furthermore, a certain combination of PVA/Cs (Rg)/β-CD showed a total antioxidant capacity of 311.10 ± 2.86 mg AAE/g sample. In vitro cytotoxicity assay of HePG2 and MCF-7 NF6 can eradicate 34.8 and 29.3 µg/mL against selected cells.
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Affiliation(s)
- Mahmoud H. Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (F.A.A.); (M.A.E.-N.)
| | - Fatma A. Abdelnaby
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (F.A.A.); (M.A.E.-N.)
| | - Maha Fadel
- Pharmaceutical Nano-Technology Lab., National Institute of Laser Enhanced Sciences, Cairo University, Cairo 11562, Egypt;
| | - Mohamed A. El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (F.A.A.); (M.A.E.-N.)
| | - Kamel R. Shoueir
- Institute of Nanoscience & Nanotechnology, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
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235
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Iacob AT, Drăgan M, Ionescu OM, Profire L, Ficai A, Andronescu E, Confederat LG, Lupașcu D. An Overview of Biopolymeric Electrospun Nanofibers Based on Polysaccharides for Wound Healing Management. Pharmaceutics 2020; 12:E983. [PMID: 33080849 PMCID: PMC7589858 DOI: 10.3390/pharmaceutics12100983] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 12/13/2022] Open
Abstract
Currently, despite the thoroughgoing scientific research carried out in the area of wound healing management, the treatment of skin injuries, regardless of etiology remains a big provocation for health care professionals. An optimal wound dressing should be nontoxic, non-adherent, non-allergenic, should also maintain a humid medium at the wound interfacing, and be easily removed without trauma. For the development of functional and bioactive dressings, they must meet different conditions such as: The ability to remove excess exudates, to allow gaseous interchange, to behave as a barrier to microbes and to external physical or chemical aggressions, and at the same time to have the capacity of promoting the process of healing by stimulating other intricate processes such as differentiation, cell adhesion, and proliferation. Over the past several years, various types of wound dressings including hydrogels, hydrocolloids, films, foams, sponges, and micro/nanofibers have been formulated, and among them, the electrospun nanofibrous mats received an increased interest from researchers due to the numerous advantages and their intrinsic properties. The drug-embedded nanofibers are the potential candidates for wound dressing application by virtue of: Superior surface area-to volume ratio, enormous porosity (can allow oxy-permeability) or reticular nano-porosity (can inhibit the microorganisms'adhesion), structural similitude to the skin extracellular matrix, and progressive electrospinning methodology, which promotes a prolonged drug release. The reason that we chose to review the formulation of electrospun nanofibers based on polysaccharides as dressings useful in wound healing was based on the ever-growing research in this field, research that highlighted many advantages of the nanofibrillary network, but also a marked versatility in terms of numerous active substances that can be incorporated for rapid and infection-free tissue regeneration. In this review, we have extensively discussed the recent advancements performed on electrospun nanofibers (eNFs) formulation methodology as wound dressings, and we focused as well on the entrapment of different active biomolecules that have been incorporated on polysaccharides-based nanofibers, highlighting those bioagents capable of improving the healing process. In addition, in vivo tests performed to support their increased efficacy were also listed, and the advantages of the polysaccharide nanofiber-based wound dressings compared to the traditional ones were emphasized.
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Affiliation(s)
- Andreea-Teodora Iacob
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Maria Drăgan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Oana-Maria Ionescu
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Lenuța Profire
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucuresti, Romania;
- Academy of Romanian Scientists, Ilfov st 3, 050085 Bucharest, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucuresti, Romania;
- Academy of Romanian Scientists, Ilfov st 3, 050085 Bucharest, Romania
| | - Luminița Georgeta Confederat
- Department of Preventive Medicine and Interdisciplinarity, Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania;
| | - Dan Lupașcu
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa” Iași, 700115 Iasi, Romania; (A.-T.I.); (M.D.); (O.-M.I.); (D.L.)
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236
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Guo X, Liu Y, Bera H, Zhang H, Chen Y, Cun D, Foderà V, Yang M. α-Lactalbumin-Based Nanofiber Dressings Improve Burn Wound Healing and Reduce Scarring. ACS APPLIED MATERIALS & INTERFACES 2020; 12:45702-45713. [PMID: 32667794 DOI: 10.1021/acsami.0c05175] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Skin wound especially burn injury is a major threat for public health. One of the pursuits in the current wound healing research is to identify new promising biological materials, which can not only promote tissue repair but also reduce scar formation. In this current study, the potentials of α-lactalbumin (ALA), a tryptophan-rich dietary protein acting as a precursor of neurotransmitter serotonin, to promote the burn wound healing and reduce the scar formation were investigated. The ALA was initially electrospun with polycaprolactone (PCL) to accomplish electrospun nanofibrous mats (ENMs), subsequently assessed for their physicochemical attributes and wound healing efficiency on a burn rat model, and then their healing mechanisms at cellular and molecular levels were explored. The results showed that ALA and PCL were physicochemically compatible in ENMs. The average diameter of various nanofibers was within 183-344 nm. Their wettability and mechanical properties could be readily modulated by adjusting the mass ratios of ALA and PCL from 1/9 to 1/2. The selected ENMs exhibited negligible cytotoxicity and satisfactory adhesion to fibroblasts and promoting the proliferation of the fibroblasts. As compared to pristine PCL based ENMs, the composite scaffolds could accelerate the wound healing process and exhibit effects comparable to a marketed wound dressing over 16 days. Moreover, the ALA/PCL based ENMs could increase the synthesis of type I collagen and decrease the expression of α-smooth muscle actin, conferring that the novel wound dressings could reduce the formation of scars. Collectively, this study demonstrates that the ALA is a promising biological material and could promote the regeneration of burn skins with reduced scar formation, when being loaded on ultrafine fibrous scaffolds, mimicking the structure of the natural extra cellular matrix.
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Affiliation(s)
- Xiong Guo
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Yunen Liu
- Department of Emergency Medicine, General Hospital of Northern Theater Command, Laboratory of Rescue Center of Severe Trauma PLA, No. 83 Road, Shenhe District, 110016 Shenyang, China
| | - Hriday Bera
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Haotian Zhang
- Department of Pharmacology, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Yang Chen
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Dongmei Cun
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
| | - Vito Foderà
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Mingshi Yang
- Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road No. 103, 110016 Shenyang, China
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
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237
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Bal‐Öztürk A, Özkahraman B, Özbaş Z, Yaşayan G, Tamahkar E, Alarçin E. Advancements and future directions in the antibacterial wound dressings – A review. J Biomed Mater Res B Appl Biomater 2020; 109:703-716. [DOI: 10.1002/jbm.b.34736] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/04/2020] [Accepted: 09/27/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Ayça Bal‐Öztürk
- Dept. of Analytical Chemistry, Faculty of Pharmacy Istinye University Istanbul Turkey
- Dept. of Stem Cell and Tissue Engineering, Institute of Health Sciences Istinye University Istanbul Turkey
| | - Bengi Özkahraman
- Dept. of Polymer Engineering, Faculty of Engineering Hitit University Turkey
| | - Zehra Özbaş
- Dept. of Chemical Engineering, Faculty of Engineering Cankırı Karatekin University Turkey
| | - Gökçen Yaşayan
- Dept. of Pharmaceutical Technology, Faculty of Pharmacy Marmara University Istanbul Turkey
| | - Emel Tamahkar
- Dept. of Chemical Engineering, Faculty of Engineering Hitit University Turkey
| | - Emine Alarçin
- Dept. of Pharmaceutical Technology, Faculty of Pharmacy Marmara University Istanbul Turkey
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238
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Nour S, Imani R, Chaudhry GR, Sharifi AM. Skin wound healing assisted by angiogenic targeted tissue engineering: A comprehensive review of bioengineered approaches. J Biomed Mater Res A 2020; 109:453-478. [PMID: 32985051 DOI: 10.1002/jbm.a.37105] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/23/2020] [Accepted: 09/26/2020] [Indexed: 12/16/2022]
Abstract
Skin injuries and in particular, chronic wounds, are one of the major prevalent medical problems, worldwide. Due to the pivotal role of angiogenesis in tissue regeneration, impaired angiogenesis can cause several complications during the wound healing process and skin regeneration. Therefore, induction or promotion of angiogenesis can be considered as a promising approach to accelerate wound healing. This article presents a comprehensive overview of current and emerging angiogenesis induction methods applied in several studies for skin regeneration, which are classified into the cell, growth factor, scaffold, and biological/chemical compound-based strategies. In addition, the advantages and disadvantages of these angiogenic strategies along with related research examples are discussed in order to demonstrate their potential in the treatment of wounds.
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Affiliation(s)
- Shirin Nour
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - Rana Imani
- Department of Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran
| | - G Rasul Chaudhry
- OU-WB Institute for Stem Cell and Regenerative Medicine, Department of Biological Sciences, Oakland University, Rochester, Michigan, USA
| | - Ali Mohammad Sharifi
- Stem Cell and Regenerative Medicine Research Center, Iran University of Medical Sciences, Tehran, Iran.,Tissue Engineering Group (NOCERAL), Department of Orthopedics Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.,Department of Tissue Engineering and Regenerative Medicine, School of Advanced Technologies in Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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239
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Figueroa T, Carmona S, Guajardo S, Borges J, Aguayo C, Fernández K. Synthesis and characterization of graphene oxide chitosan aerogels reinforced with flavan-3-ols as hemostatic agents. Colloids Surf B Biointerfaces 2020; 197:111398. [PMID: 33035809 DOI: 10.1016/j.colsurfb.2020.111398] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/14/2020] [Accepted: 09/24/2020] [Indexed: 02/06/2023]
Abstract
The natural mechanisms of the body cannot control massive hemorrhaging, resulting in a requirement for hemostatic intervention. In this study, Graphene oxide and Chitosan aerogels reinforced with grape seed (SD) and skin (SK) extracts were developed for use as hemostatic agents by evaluating the influence of pH on their synthesis, and the amount of grape extract added on the physical and chemical properties of the aerogels. The material was evaluated by FTIR, XRD, Raman spectroscopy, DLS, uniaxial compression tests and SEM. The capacity of the aerogels to absorb water, PBS and blood, as well as their coagulation capacity, were determined. In addition, the release profile for grape extracts in PBS and the material's cytotoxicity were determined. The aerogels that were synthesized under basic conditions and loaded with grape extracts were more rigid and negatively charged, and they presented smaller pores than the un-loaded acidic aerogels. For all aerogels, the hemoglobin absorption was greater than 90 % in the first 30 s. A higher density of adsorbed blood cells was observed on aerogels loaded with a higher amount of grape extract. The maximum release of extract from the aerogels occurred for those loaded with SK extracts at a basic pH; the aerogels that were prepared under acidic conditions dissolved in the media. Aerogels loaded with SK extracts under alkaline conditions were not cytotoxic toward human dermal fibroblasts and exhibited cell viabilities above 90 %. These findings suggest that these aerogels have the potential for use as hemostatic agents in wound management.
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Affiliation(s)
- Toribio Figueroa
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, University of Concepción, Concepción, Chile.
| | - Satchary Carmona
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, University of Concepción, Concepción, Chile.
| | - Sebastian Guajardo
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, University of Concepción, Concepción, Chile
| | - Jessica Borges
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, University of Concepción, Concepción, Chile.
| | - Claudio Aguayo
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile.
| | - Katherina Fernández
- Laboratory of Biomaterials, Department of Chemical Engineering, Faculty of Engineering, University of Concepción, Concepción, Chile.
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Gögele C, Schulze-Tanzil G, Kokozidou M, Gäbel C, Billner M, Reichert B, Bodenschatz K. Growth characteristics of human juvenile, adult and murine fibroblasts: a comparison of polymer wound dressings. J Wound Care 2020; 29:572-585. [PMID: 33052799 DOI: 10.12968/jowc.2020.29.10.572] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Fibroblasts are important for the successful healing of deep wounds. However, the influence exerted by Cuticell, a natural polymer on fibroblasts and by the synthetic polymer, Suprathel, made of poly-L-lactic acid, is not sufficiently characterised. This study compared the survival and growth characteristics of human juvenile and adult dermal fibroblasts as well as murine fibroblast cell line L929, on a natural polymer with those of a synthetic polymer using different culture models. METHOD Murine, juvenile and adult human fibroblasts were seeded on both the natural and synthetic polymers using statical slide culture or the medium air interface and dynamical rotatory culture. Cell adherence, viability, morphology and actin cytoskeleton architecture were monitored for 1-7 days. Biomaterial permeability was checked with a previously established diffusion chamber. RESULTS The majority of the murine and adult human fibroblasts survived in slide and rotatory cultures on both wound dressings. The fibroblasts seeded on the synthetic polymer exhibited phenotypically a typical spread shape with multiple cell adhesion sites earlier than those on the natural polymer. The highest survival rates in all tested fibroblast species over the entire observation time were detected in rotatory culture (mean: >70%). Nevertheless, it led to cell-cluster formation on both materials. In the medium air interface culture, few adult fibroblasts adhered and survived until the seventh day of culture on both the natural and synthetic polymers, and no viable juvenile and L929 fibroblasts could be found by day seven. Apart from a significant higher survival rate of L929 in slide culture on the natural polymer compared with the synthetic polymer at the end of the culturing period (p<0.0001), and a higher cell survival of L929 on the natural polymer in medium air interface culture, only minor differences between both materials were evident. This suggested a comparable cytocompatibility of both materials. Permeability testing revealed slightly higher permeance of the natural polymer compared with the synthetic polymer. CONCLUSION Cell survival rates depended on the culture system and the fibroblast source. Nevertheless, the juvenile skin fibroblasts were the most sensitive. This observation suggests that wound dressings used in treating children should be tested beforehand with juvenile fibroblasts to ensure the dressing does not compromise wound healing. Future experiments should also include the response of compromised fibroblasts, for example, from burn patients.
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Affiliation(s)
- Clemens Gögele
- Institute of Anatomy and Cell Biology, Paracelsus Medical University, Salzburg and Nuremberg, Department Nuremberg, Prof.-Ernst Nathan Strasse 1, 90419 Nuremberg, Germany.,Department of Biosciences, Paris Lodron University of Salzburg, Hellbrunnerstr. 34, 5020 Salzburg, Austria
| | - Gundula Schulze-Tanzil
- Institute of Anatomy and Cell Biology, Paracelsus Medical University, Salzburg and Nuremberg, Department Nuremberg, Prof.-Ernst Nathan Strasse 1, 90419 Nuremberg, Germany
| | - Maria Kokozidou
- Institute of Anatomy and Cell Biology, Paracelsus Medical University, Salzburg and Nuremberg, Department Nuremberg, Prof.-Ernst Nathan Strasse 1, 90419 Nuremberg, Germany
| | - Christiane Gäbel
- Leibniz-Institute for Polymer Research, Institute of Polymer Materials, Dresden, Hohe Straße 6, 01069 Dresden, Germany
| | - Moritz Billner
- Department of Plastic, Reconstructive and Hand Surgery, Center of Severe Burn Injuries Nuremberg General Hospital / Paracelsus Medical University Salzburg and Nuremberg, Department Nuremberg, Breslauer Straße 20, 90471 Nuremberg, Germany
| | - Bert Reichert
- Department of Plastic, Reconstructive and Hand Surgery, Center of Severe Burn Injuries Nuremberg General Hospital / Paracelsus Medical University Salzburg and Nuremberg, Department Nuremberg, Breslauer Straße 20, 90471 Nuremberg, Germany
| | - Karl Bodenschatz
- Department of Pediatric Surgery and Urology, Nuremberg General Hospital/Paracelsus Medical University Salzburg, Department Nuremberg, Breslauer Straße 201, 90471 Nuremberg, Germany
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Karahan HE, Ji M, Pinilla JL, Han X, Mohamed A, Wang L, Wang Y, Zhai S, Montoya A, Beyenal H, Chen Y. Biomass-derived nanocarbon materials for biological applications: challenges and prospects. J Mater Chem B 2020; 8:9668-9678. [PMID: 33000843 DOI: 10.1039/d0tb01027h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Biomass-derived nanocarbons (BNCs) have attracted significant research interests due to their promising economic and environmental benefits. Following their extensive uses in physical and chemical research domains, BNCs are now growing in biological applications. However, their practical biological applications are still in their infancy, requiring critical evaluations and strategic directions, which are provided in this review. The carbonization of biomass sources and major types of BNCs are introduced, encompassing carbon nanodots, nanofibres, nanotubes, and graphenes. Next, essential biological uses of BNCs, antibacterial/antibiofilm materials (nanofibres and nanodots) and bioimaging agents (predominantly nanodots), are summarized. Furthermore, the future potential of BNCs, for designing wound dressing/healing materials, water and air disinfection platforms, and microbial electrochemical systems, is discussed. We reach the conclusion that a crucial challenge is the structural control of BNCs. Furthermore, a key knowledge gap for realizing practical biological applications is the lack of systematic comparisons of BNCs with nanocarbons of synthetic origin in the current literature. Although we did not attempt to perform an exhaustive literature survey, the evaluation of the existing results indicates that BNCs are promising as easily accessible materials for various biomedically and environmentally relevant applications.
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Affiliation(s)
- H Enis Karahan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459, Singapore.
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242
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Naomi R, Bt Hj Idrus R, Fauzi MB. Plant- vs. Bacterial-Derived Cellulose for Wound Healing: A Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E6803. [PMID: 32961877 PMCID: PMC7559319 DOI: 10.3390/ijerph17186803] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 12/16/2022]
Abstract
Cellulose is a naturally existing element in the plant's cell wall and in several bacteria. The unique characteristics of bacterial cellulose (BC), such as non-toxicity, biodegradability, hydrophilicity, and biocompatibility, together with the modifiable form of nanocellulose, or the integration with nanoparticles, such as nanosilver (AgNP), all for antibacterial effects, contributes to the extensive usage of BC in wound healing applications. Due to this, BC has gained much demand and attention for therapeutical usage over time, especially in the pharmaceutical industry when compared to plant cellulose (PC). This paper reviews the progress of related research based on in vitro, in vivo, and clinical trials, including the overall information concerning BC and PC production and its mechanisms in wound healing. The physicochemical differences between BC and PC have been clearly summarized in a comparison table. Meanwhile, the latest Food and Drug Administration (FDA) approved BC products in the biomedical field are thoroughly discussed with their applications. The paper concludes on the need for further investigations of BC in the future, in an attempt to make BC an essential wound dressing that has the ability to be marketable in the global marketplace.
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Affiliation(s)
- Ruth Naomi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (R.N.); (R.B.H.I.)
| | - Ruszymah Bt Hj Idrus
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (R.N.); (R.B.H.I.)
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia
| | - Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur 56000, Malaysia; (R.N.); (R.B.H.I.)
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243
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Zhang W, Ma X, Li Y, Fan D. Preparation of smooth and macroporous hydrogel via hand-held blender for wound healing applications: in vitro and in vivo evaluations. ACTA ACUST UNITED AC 2020; 15:055032. [PMID: 32544897 DOI: 10.1088/1748-605x/ab9d6f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Wound dressings play an indispensable role in wound healing. However, traditional wound dressings have several disadvantages, such as poor mechanical properties and small pore diameters, which do not allow sufficient gas exchange. To overcome these shortcomings, this paper reports a polyvinyl alcohol (PVA)-based hydrogel physically crosslinked at -20 °C and containing polyethylene glycol (PEG) and nanohydroxyapatite (HAP). The physical and chemical properties of the hydrogels formed by different stirring methods (stirring with a glass rod or a hand-held homogenizer) were compared. The average roughness of Gel 1 (prepared using a hand-held homogenizer) is 112.6 nm, which is much lower than the average surface roughness of Gel 2 (1222 nm, prepared using a glass rod). Moreover, the hydrogel made by the unconventional mixing method (with a homogenizer) showed better performance, including a more interconnected open-pore microstructure and better mechanical properties. Finally, a full-thickness skin defect test was performed. The experimental results demonstrated that the hydrogel has considerable potential for applications in wound dressings.
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Affiliation(s)
- Weiyu Zhang
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University, 229 North Taibai Road, Xi'an 710069, People's Republic of China. Shaanxi R&D Center of Biomaterials and Fermentation Engineering, School of Chemical Engineering, Northwest University, Xi'an 710069, People's Republic of China. Biotech. & Biomed. Research Institute, Northwest University, Xi'an, 710069, People's Republic of China
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244
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Andryukov BG, Besednova NN, Kuznetsova TA, Zaporozhets TS, Ermakova SP, Zvyagintseva TN, Chingizova EA, Gazha AK, Smolina TP. Sulfated Polysaccharides from Marine Algae as a Basis of Modern Biotechnologies for Creating Wound Dressings: Current Achievements and Future Prospects. Biomedicines 2020; 8:E301. [PMID: 32842682 PMCID: PMC7554790 DOI: 10.3390/biomedicines8090301] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/18/2020] [Accepted: 08/21/2020] [Indexed: 12/22/2022] Open
Abstract
Wound healing involves a complex cascade of cellular, molecular, and biochemical responses and signaling processes. It consists of successive interrelated phases, the duration of which depends on a multitude of factors. Wound treatment is a major healthcare issue that can be resolved by the development of effective and affordable wound dressings based on natural materials and biologically active substances. The proper use of modern wound dressings can significantly accelerate wound healing with minimum scar mark. Sulfated polysaccharides from seaweeds, with their unique structures and biological properties, as well as with a high potential to be used in various wound treatment methods, now undoubtedly play a major role in innovative biotechnologies of modern natural interactive dressings. These natural biopolymers are a novel and promising biologically active source for designing wound dressings based on alginates, fucoidans, carrageenans, and ulvans, which serve as active and effective therapeutic tools. The goal of this review is to summarize available information about the modern wound dressing technologies based on seaweed-derived polysaccharides, including those successfully implemented in commercial products, with a focus on promising and innovative designs. Future perspectives for the use of marine-derived biopolymers necessitate summarizing and analyzing results of numerous experiments and clinical trial data, developing a scientifically substantiated approach to wound treatment, and suggesting relevant practical recommendations.
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Affiliation(s)
- Boris G. Andryukov
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russian; (N.N.B.); (T.A.K.); (T.S.Z.); (A.K.G.); (T.P.S.)
- School of Biomedicine, Far Eastern Federal University (FEFU), 690091 Vladivostok, Russian
| | - Natalya N. Besednova
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russian; (N.N.B.); (T.A.K.); (T.S.Z.); (A.K.G.); (T.P.S.)
| | - Tatyana A. Kuznetsova
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russian; (N.N.B.); (T.A.K.); (T.S.Z.); (A.K.G.); (T.P.S.)
| | - Tatyana S. Zaporozhets
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russian; (N.N.B.); (T.A.K.); (T.S.Z.); (A.K.G.); (T.P.S.)
| | - Svetlana P. Ermakova
- Elyakov Pacific Institute of Bioorganic Chemistry (PIBOC) FEB RAS, 690022 Vladivostok, Russian; (S.P.E.); (T.N.Z.); (E.A.C.)
| | - Tatyana N. Zvyagintseva
- Elyakov Pacific Institute of Bioorganic Chemistry (PIBOC) FEB RAS, 690022 Vladivostok, Russian; (S.P.E.); (T.N.Z.); (E.A.C.)
| | - Ekaterina A. Chingizova
- Elyakov Pacific Institute of Bioorganic Chemistry (PIBOC) FEB RAS, 690022 Vladivostok, Russian; (S.P.E.); (T.N.Z.); (E.A.C.)
| | - Anna K. Gazha
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russian; (N.N.B.); (T.A.K.); (T.S.Z.); (A.K.G.); (T.P.S.)
| | - Tatyana P. Smolina
- Somov Research Institute of Epidemiology and Microbiology, 690087 Vladivostok, Russian; (N.N.B.); (T.A.K.); (T.S.Z.); (A.K.G.); (T.P.S.)
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245
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Mwiiri FK, Brandner JM, Daniels R. Electrospun Bioactive Wound Dressing Containing Colloidal Dispersions of Birch Bark Dry Extract. Pharmaceutics 2020; 12:pharmaceutics12080770. [PMID: 32823875 PMCID: PMC7463733 DOI: 10.3390/pharmaceutics12080770] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/02/2022] Open
Abstract
Novel birch bark dry extract (TE)-loaded polyvinyl alcohol (PVA) fiber mats intended for wound therapy were developed through an electrospinning process. Colloidal dispersions containing TE as the active substance were prepared by the high-pressure homogenization (HPH) technique using hydrogenated phospholipids as stabilizer. Subsequently, the colloidal dispersions were blended with aqueous PVA solutions in the ratio of 60:40 (wt.%) and electrospun to form the nanofiber mats. Fiber morphology examined using scanning electron microscopy (SEM) indicated that fibers were uniform and achieved diameters in the size range of 300–1586 nm. Confocal Raman spectral imaging gave good evidence that triterpenes were encapsulated within the electrospun mats. In vitro drug release and ex vivo permeation studies indicated that the electrospun nanofibers showed a sustained release of betulin, the main component of birch bark dry extract, making the examined dressings highly applicable for several wound care applications. Ex vivo wound healing studies proved that electrospun fiber mats containing TE accelerated wound healing significantly more than TE oleogel, which was comparable to an authorized product that consists of TE and sunflower oil and has proved to enhance wound healing. Therefore, our results conclude that the developed TE-PVA-based dressings show promising potential for wound therapy, an area where effective remedy is needed.
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Affiliation(s)
- Francis Kamau Mwiiri
- Department of Pharmaceutical Technology, Eberhard Karls University, Auf der Morgenstelle 8, 72076 Tuebingen, Germany;
| | - Johanna M. Brandner
- Department of Dermatology and Venerology, University Hospital Hamburg-Eppendorf, Martinistraße 52, 20246 Hamburg, Germany;
| | - Rolf Daniels
- Department of Pharmaceutical Technology, Eberhard Karls University, Auf der Morgenstelle 8, 72076 Tuebingen, Germany;
- Correspondence: ; Tel.: +49-7071-297-2462; Fax: +49-7071-295-531
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246
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Zheng Z, Bian S, Li Z, Zhang Z, Liu Y, Zhai X, Pan H, Zhao X. Catechol modified quaternized chitosan enhanced wet adhesive and antibacterial properties of injectable thermo-sensitive hydrogel for wound healing. Carbohydr Polym 2020; 249:116826. [PMID: 32933673 DOI: 10.1016/j.carbpol.2020.116826] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 06/29/2020] [Accepted: 07/23/2020] [Indexed: 02/08/2023]
Abstract
Wound dressings based on injectable thermo-sensitive hydrogel possess several advantages over preformed conventional dressings such as rapid reversible sol-gel transition behavior and the capacity of filling the irregular wound defect. Nevertheless, its clinical application is hindered by the weak tissue adhesiveness. Therefore, in this study, the catechol modified quaternized chitosan (QCS-C) was fabricated and incorporated into poly(d,l-lactide)-poly(ethylene glycol)-poly(d,l-lactide) (PLEL) hydrogel to develop an injectable hydrogel with the properties of thermo-sensitive, antibacterial and tissue adhesive. QCS-C could lower the LCST of hydrogel for easy gelation at physiological temperature, and significantly enhanced the tissue adhesion. For wound generation, nano-scaled bioactive glass (nBG:80 SiO2, 16 CaO and 4 P2O5; mol%) was loaded into hydrogel to promote angiogenesis. The mice partial laceration experiment showed that PLEL-nBG-QCS-C hydrogel could effectively seal the ruptured skin and significantly accelerate wound healing. Thus, our findings established a new type of clinical treatment technology for complicated wounds.
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Affiliation(s)
- Zhiqiang Zheng
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen, 518055, PR China
| | - Shaoquan Bian
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen, 518055, PR China
| | - Zhiqiang Li
- Department of Orthopedic Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, 330006, PR China
| | - Zhiyang Zhang
- School of Materials Science and Engineering, The Key Laboratory of Advanced Ceramics and Machining Technology by the Ministry of Education of China, Tianjin University, 300072, Tianjin, PR China
| | - Yuan Liu
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen, 518055, PR China
| | - Xinyun Zhai
- Tianjin Key Lab for Rare Earth Materials and Applications, School of Materials Science and Engineering, Nankai University, 300350, Tianjin, PR China
| | - Haobo Pan
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen, 518055, PR China
| | - Xiaoli Zhao
- Research Center for Human Tissue and Organs Degeneration, Institute of Biomedicine and Biotechnology, Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences, Shenzhen, 518055, PR China.
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247
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Polysaccharides from Gracilaria lemaneiformis promote the HaCaT keratinocytes wound healing by polarised and directional cell migration. Carbohydr Polym 2020; 241:116310. [DOI: 10.1016/j.carbpol.2020.116310] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 03/16/2020] [Accepted: 04/13/2020] [Indexed: 01/25/2023]
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248
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Ciriminna R, Albo Y, Pagliaro M. New Antivirals and Antibacterials Based on Silver Nanoparticles. ChemMedChem 2020; 15:1619-1623. [PMID: 32657536 PMCID: PMC7404954 DOI: 10.1002/cmdc.202000390] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Indexed: 01/23/2023]
Abstract
The rediscovery of the medical uses of silver provides another noticeable example, this time at the interface of chemistry and medicine, of the real (and nonlinear) progress of scientific research. Several new silver‐based antimicrobial products have thus been commercialized in the last two decades. Next‐generation antibacterials and antivirals of broad scope, low toxicity and affordable cost, we argue in this study, will be based on microencapsulated Ag nanoparticles.
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Affiliation(s)
- Rosaria Ciriminna
- Istituto per lo Studio dei Materiali Nanostrutturati, CNR, via U. La Malfa 153, 90146, Palermo, Italy
| | - Yael Albo
- Department Chemical Engineering, Materials and Biotechnology The Center for Radical Reactions, Ariel University, Jerusalem, Israel
| | - Mario Pagliaro
- Istituto per lo Studio dei Materiali Nanostrutturati, CNR, via U. La Malfa 153, 90146, Palermo, Italy
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249
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Xu Q, Chang M, Zhang Y, Wang E, Xing M, Gao L, Huan Z, Guo F, Chang J. PDA/Cu Bioactive Hydrogel with "Hot Ions Effect" for Inhibition of Drug-Resistant Bacteria and Enhancement of Infectious Skin Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2020; 12:31255-31269. [PMID: 32530593 DOI: 10.1021/acsami.0c08890] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Quick and effective sterilization of drug-resistant bacteria inevitably became an ever-growing global challenge. In this study, a multifunctional composite (PDA/Cu-CS) hydrogel mainly composed of polydopamine (PDA) and copper-doped calcium silicate ceramic (Cu-CS) was prepared. It was confirmed that PDA/copper (PDA/Cu) complexing in the composite hydrogel played a key role in enhancing the photothermal performance and antibacterial activity. Through a unique "hot ions effect", created by the heating of Cu ions through the photothermal effect of the composite hydrogel, the hydrogel showed high-efficiency, quick, and long-term inhibition of methicillin-resistant Staphylococcus aureus and Escherichia coli. In addition, the hydrogel possessed remarkable bioactivity to stimulate angiogenesis. The in vivo results confirmed that the "hot ions effect" of the composite hydrogel removed existing infection in the wound area efficiently and significantly promoted angiogenesis and collagen deposition during infectious skin wound healing. Our results suggested that the design of multifunctional hydrogels with "hot ions effect" may be an effective therapeutic approach for the treatment of infectious wounds.
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Affiliation(s)
- Qing Xu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Mengling Chang
- Department of Burns and Plastic Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Yu Zhang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Endian Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Min Xing
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Long Gao
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Zhiguang Huan
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Feng Guo
- Department of Plastic Surgery, Shanghai Jiaotong University Affiliated Shanghai Sixth People's Hospital, Shanghai 200233, People's Republic of China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
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250
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Hameed M, Rasul A, Nazir A, Yousaf AM, Hussain T, Khan IU, Abbas G, Abid S, Yousafi QUA, Ghori MU, Shahzad Y. Moxifloxacin-loaded electrospun polymeric composite nanofibers-based wound dressing for enhanced antibacterial activity and healing efficacy. INT J POLYM MATER PO 2020. [DOI: 10.1080/00914037.2020.1785464] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Misbah Hameed
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Akhtar Rasul
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ahsan Nazir
- Electrospun Materials and Polymeric Membranes Research Group, National Textile University, Faisalabad, Pakistan
| | | | - Talib Hussain
- Department of Pharmacy, COMSATS University Islamabad, Lahore, Pakistan
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ghulam Abbas
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sharjeel Abid
- Electrospun Materials and Polymeric Membranes Research Group, National Textile University, Faisalabad, Pakistan
| | | | - Muhammad Usman Ghori
- Department of Pharmacy, School of Applied Science, University of Huddersfield, Huddersfield, UK
| | - Yasser Shahzad
- Department of Pharmacy, COMSATS University Islamabad, Lahore, Pakistan
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