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Mrozińska Z, Kudzin MH, Ponczek MB, Kaczmarek A, Król P, Lisiak-Kucińska A, Żyłła R, Walawska A. Biochemical Approach to Poly(Lactide)-Copper Composite-Impact on Blood Coagulation Processes. MATERIALS (BASEL, SWITZERLAND) 2024; 17:608. [PMID: 38591465 PMCID: PMC10856769 DOI: 10.3390/ma17030608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 01/02/2024] [Accepted: 01/22/2024] [Indexed: 04/10/2024]
Abstract
The paper presents the investigation of the biological properties of Poly(Lactide)-Copper composite material obtained by sputter deposition of copper onto Poly(lactide) melt-blown nonwoven fabrics. The functionalized composite material was subjected to microbial activity tests against colonies of Gram-positive (Staphylococcus aureus), Gram-negative (Escherichia coli, Pseudomonas aeruginosa) bacteria, Chaetomium globosum and Candida albicans fungal mold species and biochemical-hematological tests including the evaluation of the Activated Partial Thromboplastin Time, Prothrombin Time, Thrombin Time and electron microscopy fibrin network imaging. The substantial antimicrobial and antifungal activities of the Poly(Lactide)-Copper composite suggests potential applications as an antibacterial/antifungal material. The unmodified Poly(Lactide) fabric showed accelerated human blood plasma clotting in the intrinsic pathway, while copper plating abolished this effect. Unmodified PLA itself could be used for the preparation of wound dressing materials, accelerating coagulation in the case of hemorrhages, and its modifications with the use of various metals might be applied as new customized materials where blood coagulation process could be well controlled, yielding additional anti-pathogen effects.
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Affiliation(s)
- Zdzisława Mrozińska
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
| | - Marcin H. Kudzin
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
| | - Michał B. Ponczek
- Department of General Biochemistry, Faculty of Biology and Environmental Protection, University of Lodz, 90-236 Lodz, Poland;
| | - Anna Kaczmarek
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
| | - Paulina Król
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
| | - Agnieszka Lisiak-Kucińska
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
| | - Renata Żyłła
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
| | - Anetta Walawska
- Łukasiewicz Research Network—Lodz Institute of Technology, 19/27 Marii Sklodowskiej-Curie Str., 90-570 Lodz, Poland; (Z.M.); (A.K.); (P.K.); (A.L.-K.); (R.Ż.); (A.W.)
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Li K, Zhu Z, Zhai Y, Chen S. Recent Advances in Electrospun Nanofiber-Based Strategies for Diabetic Wound Healing Application. Pharmaceutics 2023; 15:2285. [PMID: 37765254 PMCID: PMC10535965 DOI: 10.3390/pharmaceutics15092285] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Diabetic ulcers are the second largest complication caused by diabetes mellitus. A great number of factors, including hyperchromic inflammation, susceptible microbial infection, inferior vascularization, the large accumulation of free radicals, and other poor healing-promoting microenvironments hold back the healing process of chronic diabetic ulcer in clinics. With the increasing clinical cases of diabetic ulcers worldwide, the design and development of advanced wound dressings are urgently required to accelerate the treatment of skin wounds caused by diabetic complications. Electrospinning technology has been recognized as a simple, versatile, and cost-reasonable strategy to fabricate dressing materials composed of nanofibers, which possess excellent extracellular matrix (ECM)-mimicking morphology, structure, and biological functions. The electrospinning-based nanofibrous dressings have been widely demonstrated to promote the adhesion, migration, and proliferation of dermal fibroblasts, and further accelerate the wound healing process compared with some other dressing types like traditional cotton gauze and medical sponges, etc. Moreover, the electrospun nanofibers are commonly harvested in the structure of nonwoven-like mats, which possess small pore sizes but high porosity, resulting in great microbial barrier performance as well as excellent moisture and air permeable properties. They also serve as good carriers to load various bioactive agents and/or even living cells, which further impart the electrospinning-based dressings with predetermined biological functions and even multiple functions to significantly improve the healing outcomes of different chronic skin wounds while dramatically shortening the treatment procedure. All these outstanding characteristics have made electrospun nanofibrous dressings one of the most promising dressing candidates for the treatment of chronic diabetic ulcers. This review starts with a brief introduction to diabetic ulcer and the electrospinning process, and then provides a detailed introduction to recent advances in electrospinning-based strategies for the treatment of diabetic wounds. Importantly, the synergetic application of combining electrospinning with bioactive ingredients and/or cell therapy was highlighted. The review also discussed the advantages of hydrogel dressings by using electrospun nanofibers. At the end of the review, the challenge and prospects of electrospinning-based strategies for the treatment of diabetic wounds are discussed in depth.
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Affiliation(s)
- Kun Li
- College of Textile & Clothing, Qingdao University, Qingdao 266071, China;
| | - Zhijun Zhu
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China; (Z.Z.); (Y.Z.)
| | - Yanling Zhai
- College of Chemistry & Chemical Engineering, Qingdao University, Qingdao 266071, China; (Z.Z.); (Y.Z.)
| | - Shaojuan Chen
- College of Textile & Clothing, Qingdao University, Qingdao 266071, China;
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Singkham-In U, Phuengmaung P, Makjaroen J, Saisorn W, Bhunyakarnjanarat T, Chatsuwan T, Chirathaworn C, Chancharoenthana W, Leelahavanichkul A. Chlorhexidine Promotes Psl Expression in Pseudomonas aeruginosa That Enhances Cell Aggregation with Preserved Pathogenicity Demonstrates an Adaptation against Antiseptic. Int J Mol Sci 2022; 23:ijms23158308. [PMID: 35955437 PMCID: PMC9368580 DOI: 10.3390/ijms23158308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/20/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
Because Pseudomonas aeruginosa is frequently in contact with Chlorhexidine (a regular antiseptic), bacterial adaptations are possible. In comparison with the parent strain, the Chlorhexidine-adapted strain formed smaller colonies with metabolic downregulation (proteomic analysis) with the cross-resistance against colistin (an antibiotic for several antibiotic-resistant bacteria), partly through the modification of L-Ara4N in the lipopolysaccharide at the outer membrane. Chlorhexidine-adapted strain formed dense liquid–solid interface biofilms with enhanced cell aggregation partly due to the Chlorhexidine-induced overexpression of psl (exopolysaccharide-encoded gene) through the LadS/GacSA pathway (c-di-GMP-independence) in 12 h biofilms and maintained the aggregation with SiaD-mediated c-di-GMP dependence in 24 h biofilms as evaluated by polymerase chain reaction (PCR). The addition of Ca2+ in the Chlorhexidine-adapted strain facilitated several Psl-associated genes, indicating an impact of Ca2+ in Psl production. The activation by Chlorhexidine-treated sessile bacteria demonstrated a lower expression of IL-6 and IL-8 on fibroblasts and macrophages than the activation by the parent strain, indicating the less inflammatory reactions from Chlorhexidine-exposed bacteria. However, the 14-day severity of the wounds in mouse caused by Chlorhexidine-treated bacteria versus the parent strain was similar, as indicated by wound diameters and bacterial burdens. In conclusion, Chlorhexidine induced psl over-expression and colistin cross-resistance that might be clinically important.
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Affiliation(s)
- Uthaibhorn Singkham-In
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand; (U.S.-I.); (P.P.); (C.C.)
| | - Pornpimol Phuengmaung
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand; (U.S.-I.); (P.P.); (C.C.)
| | - Jiradej Makjaroen
- Center of Excellence in Systems Biology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand;
| | - Wilasinee Saisorn
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand; (W.S.); (T.B.)
| | - Thansita Bhunyakarnjanarat
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand; (W.S.); (T.B.)
| | - Tanittha Chatsuwan
- Antimicrobial Resistance and Stewardship Research Unit, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand;
| | - Chintana Chirathaworn
- Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand; (U.S.-I.); (P.P.); (C.C.)
| | - Wiwat Chancharoenthana
- Tropical Nephrology Research Unit, Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
- Correspondence: (W.C.); (A.L.); Tel.: +66-2-306-9130 (W.C.); +66-2-256-4251 (A.L.); Fax: +66-2-354-9150 (W.C.); +66-2-252-6920 (A.L.)
| | - Asada Leelahavanichkul
- Translational Research in Inflammation and Immunology Research Unit (TRIRU), Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Pathumwan, Bangkok 10330, Thailand; (W.S.); (T.B.)
- Correspondence: (W.C.); (A.L.); Tel.: +66-2-306-9130 (W.C.); +66-2-256-4251 (A.L.); Fax: +66-2-354-9150 (W.C.); +66-2-252-6920 (A.L.)
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Iliou K, Kikionis S, Ioannou E, Roussis V. Marine Biopolymers as Bioactive Functional Ingredients of Electrospun Nanofibrous Scaffolds for Biomedical Applications. Mar Drugs 2022; 20:md20050314. [PMID: 35621965 PMCID: PMC9143254 DOI: 10.3390/md20050314] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Revised: 04/30/2022] [Accepted: 05/01/2022] [Indexed: 02/01/2023] Open
Abstract
Marine biopolymers, abundantly present in seaweeds and marine animals, feature diverse structures and functionalities, and possess a wide range of beneficial biological activities. Characterized by high biocompatibility and biodegradability, as well as unique physicochemical properties, marine biopolymers are attracting a constantly increasing interest for the development of advanced systems for applications in the biomedical field. The development of electrospinning offers an innovative technological platform for the production of nonwoven nanofibrous scaffolds with increased surface area, high encapsulation efficacy, intrinsic interconnectivity, and structural analogy to the natural extracellular matrix. Marine biopolymer-based electrospun nanofibrous scaffolds with multifunctional characteristics and tunable mechanical properties now attract significant attention for biomedical applications, such as tissue engineering, drug delivery, and wound healing. The present review, covering the literature up to the end of 2021, highlights the advancements in the development of marine biopolymer-based electrospun nanofibers for their utilization as cell proliferation scaffolds, bioadhesives, release modifiers, and wound dressings.
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Zhang Y, Wang Y, Zeng L, Liu Y, Sun H, Li S, Wang S, Shu L, Liu N, Yin S, Wang J, Ni D, Wu Y, Yang Y, He L, Meng B, Yang X. Amphibian-derived peptide homodimer OA-GL17d promotes skin wound regeneration through the miR-663a/TGF-β1/Smad axis. BURNS & TRAUMA 2022; 10:tkac032. [PMID: 35832307 PMCID: PMC9273405 DOI: 10.1093/burnst/tkac032] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 04/08/2022] [Indexed: 11/29/2022]
Abstract
Background Amphibian-derived peptides exhibit considerable potential in the discovery and development of new therapeutic interventions for clinically challenging chronic skin wounds. MicroRNAs (miRNAs) are also considered promising targets for the development of effective therapies against skin wounds. However, further research in this field is anticipated. This study aims to identify and provide a new peptide drug candidate, as well as to explore the underlying miRNA mechanisms and possible miRNA drug target for skin wound healing. Methods A combination of Edman degradation, mass spectrometry and cDNA cloning were adopted to determine the amino acid sequence of a peptide that was fractionated from the secretion of Odorrana andersonii frog skin using gel-filtration and reversed-phase high-performance liquid chromatography. The toxicity of the peptide was evaluated by Calcein-AM/propidium iodide (PI) double staining against human keratinocytes (HaCaT cells), hemolytic activity against mice blood cells and acute toxicity against mice. The stability of the peptide in plasma was also evaluated. The prohealing potency of the peptide was determined by MTS, scratch healing and a Transwell experiment against HaCaT cells, full-thickness injury wounds and scald wounds in the dorsal skin of mice. miRNA transcriptome sequencing analysis, enzyme-linked immunosorbent assay, real-time polymerase chain reaction and western blotting were performed to explore the molecular mechanisms. Results A novel peptide homodimer (named OA-GL17d) that contains a disulfide bond between the 16th cysteine residue of the peptide monomer and the sequence ‘GLFKWHPRCGEEQSMWT’ was identified. Analysis showed that OA-GL17d exhibited no hemolytic activity or acute toxicity, but effectively promoted keratinocyte proliferation and migration and strongly stimulated the repair of full-thickness injury wounds and scald wounds in the dorsal skin of mice. Mechanistically, OA-GL17d decreased the level of miR-663a to increase the level of transforming growth factor-β1 (TGF-β1) and activate the subsequent TGF-β1/Smad signaling pathway, thereby resulting in accelerated skin wound re-epithelialization and granular tissue formation. Conclusions Our results suggest that OA-GL17d is a new peptide drug candidate for skin wound repair. This study emphasizes the importance of exogenous peptides as molecular probes for exploring competing endogenous RNA mechanisms and indicates that miR-663a may be an effective target for promoting skin repair.
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Affiliation(s)
- Yue Zhang
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Ying Wang
- Key Laboratory of Chemistry in Ethnic Medicinal Resources & Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes , State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, , Kunming 650504, Yunnan, China
- Yunnan MinZu University , State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, , Kunming 650504, Yunnan, China
| | - Lin Zeng
- Institutional Center for Shared Technologies and Facilities of Kunming Institute of Zoology, Chinese Academy of Sciences , Kunming 650223, Yunnan, China
| | - Yixiang Liu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources & Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes , State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, , Kunming 650504, Yunnan, China
- Yunnan MinZu University , State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, , Kunming 650504, Yunnan, China
| | - Huiling Sun
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Shanshan Li
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Siyu Wang
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Longjun Shu
- Key Laboratory of Chemistry in Ethnic Medicinal Resources & Key Laboratory of Natural Products Synthetic Biology of Ethnic Medicinal Endophytes , State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, , Kunming 650504, Yunnan, China
- Yunnan MinZu University , State Ethnic Affairs Commission & Ministry of Education, School of Ethnomedicine and Ethnopharmacy, , Kunming 650504, Yunnan, China
| | - Naixin Liu
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Saige Yin
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Junsong Wang
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Dan Ni
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Yutong Wu
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Ying Yang
- Endocrinology Department of Affiliated Hospital of Yunnan University , Kunming 650021, Yunnan, China
| | - Li He
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University , Kunming, 650500, Yunnan, China
| | - Buliang Meng
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
| | - Xinwang Yang
- Department of Anatomy and Histology & Embryology , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
- Kunming Medical University , Faculty of Basic Medical Science, , Kunming 650500, Yunnan, China
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Dhawan S, Takiar M, Manocha A, Dhawan R, Malhotra R, Gupta J. Functionally graded membrane: A novel approach in the treatment of gingival recession defects. J Indian Soc Periodontol 2021; 25:411-417. [PMID: 34667384 PMCID: PMC8452168 DOI: 10.4103/jisp.jisp_583_20] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 04/02/2021] [Accepted: 05/18/2021] [Indexed: 11/29/2022] Open
Abstract
Background: Guided tissue regeneration has recently been advocated in re-constructing soft-tissue dimensions in recession defects. Advancement in nanotechnology has led to increased zest for approaches such as electrospinning of biologically active; nanofibrous functionally graded regenerative membranes for periodontal tissue engineering. A functionally graded membrane (FGM) had been tailored by incorporating chitosan and nano-hydroxyapatite over Amnion membrane and used in gingival recession defects. Study Design: It was single-blind, randomized controlled study. Split-mouth study was conducted in nine patients and 22 sites with recession defects were selected. Sites were divided into Group A (Amnion membrane with coronal advanced flap) and Group B (FGM with coronal advanced flap). Materials and Methods: Sites were assessed clinically by recording plaque index (PI), gingival index (GI), vertical recession defect depth (VRDD), relative clinical attachment level (CAL), and width of keratinized tissue at baseline, 3–6 months; and radiographically by recording linear bone growth by dentascan at baseline and 6 months. Result: Both groups showed statistically significant reduction in PI, GI and VRDD, and CAL and nonsignificant reduction in width of keratinized tissue at 3 and 6 months postoperatively. Group A showed statistically significant linear bone growth at 6 months. Group B also showed gain in linear bone growth at 6 months; however, result was statistically nonsignificant. Conclusion: FGM had shown favorable results by enhancing bone growth while preventing the gingival tissue downgrowth.
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Affiliation(s)
- Shivani Dhawan
- Department of Periodontology and Oral Implantology, Maharishi Markandeshwar College of Dental Sciences and Research, Maharishi Markandeshwar Deemed to be University, Ambala, Haryana, India
| | - Megha Takiar
- Department of Periodontology and Oral Implantology, Maharishi Markandeshwar College of Dental Sciences and Research, Maharishi Markandeshwar Deemed to be University, Ambala, Haryana, India
| | - Anish Manocha
- Department of Periodontology and Oral Implantology, Maharishi Markandeshwar College of Dental Sciences and Research, Maharishi Markandeshwar Deemed to be University, Ambala, Haryana, India
| | - Rajan Dhawan
- Department of Conservative Dentistry and Endodontics, Maharishi Markandeshwar College of Dental Sciences and Research, Maharishi Markandeshwar University, Ambala, Haryana, India
| | - Ranjan Malhotra
- Department of Periodontology and Oral Implantology, Himachal Dental College, Sunder Nagar, Himachal Pradesh University, Shimla, India
| | - Jyoti Gupta
- Department of Periodontology and Oral Implantology, Harvansh Singh Judge Institute of Dental Sciences, Chandigarh, India
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Ujjwal RR, Yadav A, Tripathi S, Krishna STVS. Polymer-Based Nanotherapeutics for Burn Wounds. Curr Pharm Biotechnol 2021; 23:1460-1482. [PMID: 34579630 DOI: 10.2174/1389201022666210927103755] [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: 03/23/2021] [Revised: 07/11/2021] [Accepted: 08/06/2021] [Indexed: 11/22/2022]
Abstract
Burn wounds are complex and intricate injuries that have become a common cause of trauma leading to significant mortality and morbidity every year. Dressings are applied to burn wounds with the aim of promoting wound healing, preventing burn infection and restoring skin function. The dressing protects the injury and contributes to recovery of dermal and epidermal tissues. Polymer-based nanotherapeutics are increasingly being exploited as burn wound dressings. Natural polymers such as cellulose, chitin, alginate, collagen, gelatin and synthetic polymers like poly (lactic-co-glycolic acid), polycaprolactone, polyethylene glycol, and polyvinyl alcohol are being obtained as nanofibers by nanotechnological approaches like electrospinning and have shown wound healing and re-epithelialization properties. Their biocompatibility, biodegradability, sound mechanical properties and unique structures provide optimal microenvironment for cell proliferation, differentiation, and migration contributing to burn wound healing. The polymeric nanofibers mimic collagen fibers present in extracellular matrix and their high porosity and surface area to volume ratio enable increased interaction and sustained release of therapeutics at the site of thermal injury. This review is an attempt to compile all recent advances in the use of polymer-based nanotherapeutics for burn wounds. The various natural and synthetic polymers used have been discussed comprehensively and approaches being employed have been reported. With immense research effort that is currently being invested in this field and development of proper characterization and regulatory framework, future progress in burn treatment is expected to occur. Moreover, appropriate preclinical and clinical research will provide evidence for the great potential that polymer-based nanotherapeutics hold in the management of burn wounds.
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Affiliation(s)
- Rewati Raman Ujjwal
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
| | - Awesh Yadav
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
| | - Shourya Tripathi
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
| | - S T V Sai Krishna
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research-Raebareli, Lucknow, U.P. India
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Non-Thermal Atmospheric Pressure Argon-Sourced Plasma Flux Promotes Wound Healing of Burn Wounds and Burn Wounds with Infection in Mice through the Anti-Inflammatory Macrophages. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11125343] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Plasma medicine is the utilization of gas ionization that might be beneficial for the treatment of burn wounds, a healthcare problem with a significant mortality rate. Due to a lack of information on the impact of plasma flux in immune cells and a high prevalence of bacterial infection in burn wounds, non-thermal argon-based plasma flux was tested on macrophages (RAW246.7) and in mouse models of burn wounds with or without Staphylococcus aureus infection. Accordingly, plasma flux enhanced reactive oxygen species (ROS), using dihydroethidium assay, and decreased abundance of NF-κB-p65 (Western blot analysis) in non-stimulating macrophages. In parallel, plasma flux upregulated IL-10 gene expression (an anti-inflammatory cytokine) in lipopolysaccharide (LPS)-induced inflammatory macrophages, while downregulating the pro-inflammatory cytokines (IL-1β and IL-6). Additionally, plasma flux improved the migratory function of fibroblasts (L929) (fibroblast scratch assay) but not fibroblast proliferation. Moreover, once daily plasma flux administration for 7 days promoted the healing process in burn wounds with or without infection (wound area and wound rank score). Additionally, plasma flux reduced tissue cytokines (TNF-α and IL-6) in burn wounds with infection and promoted collagen in burn wounds without infection. In conclusion, plasma flux induced anti-inflammatory macrophages and promoted the burn-wound healing process partly through the decrease in macrophage NF-κB. Hence, plasma flux treatment should be tested in patients with burn wounds.
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A New Concept in Minimally Invasive Embryo Transfer. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2020-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
Considerable variation in embryo transfer (ET) catheter types, diverging opinions on their quality and functionality, complications following the insertion of catheters, low efficiency of the application of ET methods in humans, and their widely varying efficiency in animals demonstrate the need to improve ET methods and to look for new types of catheters. Such an opportunity is offered by the introduction of catheters made of new-generation biomaterials. This study was aimed to introduce a new generation of biomaterials into reproductive biotechnology. New-generation materials were compared with materials that have been used for many years, and the functionality of newly produced catheters was compared in vivo. Five types of biomaterials were tested: polycaprolactone (PCL), dibutyryl chitin (DBC), polypropylene (PP), polyethylene (PE) and polylactide (PLA). The study was carried out in two stages. Firstly, the basic utility parameters such as geometric stability, surface structure and catheter resistance were evaluated. Subsequently, the biocompatibility of selected biomaterials in embryo cultures was examined, and the development potential of the obtained blastocysts was evaluated. In the second stage, in vivo with live animals, the biomaterials were tested for biocompatibility and the obtained catheters were examined for their ET functionality. Efficiency with the use of the newly produced catheters was determined, the quality of the blastocysts obtained after embryo culture in the uterus was assessed, and oviducts were subjected to histopathological examination after embryo transfer. Of the tested biomaterials, only polyethylene (PE) showed adequate biological and material properties and proved suitable for production of ET catheters.
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Rade PP, Garnaik B. Ofloxacin-Loaded PLLA Nanofibrous Mats for Wound Dressing Applications. ACS APPLIED BIO MATERIALS 2020; 3:6648-6660. [DOI: 10.1021/acsabm.0c00290] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Priyanka P. Rade
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Baijayantimala Garnaik
- Polymer Science and Engineering Division, CSIR- National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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11
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Latańska I, Kozera-Żywczyk A, Paluchowska EB, Owczarek W, Kaszuba A, Noweta M, Tazbir J, Kolesińska B, Draczyński Z, Sujka W. Characteristic Features of Wound Dressings Based on Butyric-Acetic Chitin Copolyesters-Results of Clinical Trials. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E4170. [PMID: 31842270 PMCID: PMC6947344 DOI: 10.3390/ma12244170] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/25/2019] [Accepted: 12/06/2019] [Indexed: 01/22/2023]
Abstract
The article presents the results of clinical trials of wound dressings whose main ingredient is butyric-acetic chitin copolyester (BAC 90:10). It is a chitin derivative soluble in typical organic solvents. During the trial, the dressings were used on wounds resulting from venous insufficiency or diabetes. The trial evaluated the safety of use and efficacy of three forms of the dressing including porous membrane (Medisorb R Membrane), porous membrane with silver (Medisorb R Ag), and powder (Medisorb R Powder). The clinical trial had a multi-centre character. Three medical units were engaged in the study. The trial included 36 patients (12 men and 24 women). The mean age of the participants was 65 years of age (age range: 26-96). The choice of dressings was made on the basis of preliminary evaluation of the wound, clinical signs of infection, or risk of infection. Medisorb R Membrane dressing was used in 23 patients, Medisorb R Ag dressing was used in 15 patients, and Medisorb R powder was used in two patients. During the course of the trial, there were 10 control visits planned. The obtained results prove the safety and efficacy of dressings in question. The efficacy of treatment was evaluated as good. In the majority of patients, the ulceration was decreased both on the surface and in depth. The success of the treatment relied not only on the applied dressing, but also the stage of the basic disease, the accompanying diseases, and the age of the patient.
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Affiliation(s)
- Ilona Latańska
- Tricomed SA, Świętojańska Street 5/9, 93-493 Lodz, Poland;
| | - Anna Kozera-Żywczyk
- Military Institute of Medicine, Ministry of National Defense Central Clinical Hospital, Dermatology Clinic, Szaserów Street 128, 04-141 Warsaw, Poland; (A.K.-Ż.); (E.B.P.); (W.O.)
| | - Elwira Beata Paluchowska
- Military Institute of Medicine, Ministry of National Defense Central Clinical Hospital, Dermatology Clinic, Szaserów Street 128, 04-141 Warsaw, Poland; (A.K.-Ż.); (E.B.P.); (W.O.)
| | - Witold Owczarek
- Military Institute of Medicine, Ministry of National Defense Central Clinical Hospital, Dermatology Clinic, Szaserów Street 128, 04-141 Warsaw, Poland; (A.K.-Ż.); (E.B.P.); (W.O.)
| | - Andrzej Kaszuba
- Wł. Biegański Provincial Specialised Hospital, Dermatology, Paediatric Dermatology and Oncologic Dermatology Ward, Dermatology, UM Paediatric Dermatology and Oncologic Dermatology Clinic, Kniaziewicza Street 1/5, 91-347 Lodz, Poland; (A.K.); (M.N.)
| | - Marcin Noweta
- Wł. Biegański Provincial Specialised Hospital, Dermatology, Paediatric Dermatology and Oncologic Dermatology Ward, Dermatology, UM Paediatric Dermatology and Oncologic Dermatology Clinic, Kniaziewicza Street 1/5, 91-347 Lodz, Poland; (A.K.); (M.N.)
| | - Józef Tazbir
- Citonet Lodz Limited Company, Wound Treatment Clinic., Świętojańska Street 5/9, 93-493 Lodz, Poland;
| | - Beata Kolesińska
- Organic Chemistry Unit, Lodz University of Technology, Żeromskiego Street 116, 90-924 Lodz, Poland;
| | - Zbigniew Draczyński
- Institute of Material Science of Textiles and Polymer Composites, Lodz University of Technology, Żeromskiego Street 116, 90-924 Lodz, Poland;
| | - Witold Sujka
- Tricomed SA, Świętojańska Street 5/9, 93-493 Lodz, Poland;
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12
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Al-Jbour ND, Beg MD, Gimbun J, Alam AKMM. An Overview of Chitosan Nanofibers and their Applications in the Drug Delivery Process. Curr Drug Deliv 2019; 16:272-294. [PMID: 30674256 DOI: 10.2174/1567201816666190123121425] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 12/15/2018] [Accepted: 01/17/2019] [Indexed: 01/28/2023]
Abstract
Chitosan is a polycationic natural polymer which is abundant in nature. Chitosan has gained much attention as natural polymer in the biomedical field. The up to date drug delivery as well as the nanotechnology in controlled release of drugs from chitosan nanofibers are focused in this review. Electrospinning is one of the most established and widely used techniques for preparing nanofibers. This method is versatile and efficient for the production of continuous nanofibers. The chitosan-based nanofibers are emerging materials in the arena of biomaterials. Recent studies revealed that various drugs such as antibiotics, chemotherapeutic agents, proteins and anti-inflammatory analgesic drugs were successfully loaded onto electrospun nanofibers. Chitosan nanofibers have several outstanding properties for different significant pharmaceutical applications such as wound dressing, tissue engineering, enzyme immobilization, and drug delivery systems. This review highlights different issues of chitosan nanofibers in drug delivery applications, starting from the preparation of chitosan nanofibers, followed by giving an idea about the biocompatibility and degradation of chitosan nanofibers, then describing how to load the drug into the nanofibers. Finally, the major applications of chitosan nanofibers in drug delivery systems.
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Affiliation(s)
- Nawzat D Al-Jbour
- Center of Excellence for Advanced Research in Fluid Flow (CARIFF), Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Gambang 26300, Kuantan, Malaysia
| | - Mohammad D Beg
- Center of Excellence for Advanced Research in Fluid Flow (CARIFF), Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Gambang 26300, Kuantan, Malaysia
| | - Jolius Gimbun
- Center of Excellence for Advanced Research in Fluid Flow (CARIFF), Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Gambang 26300, Kuantan, Malaysia
| | - A K M Moshiul Alam
- Center of Excellence for Advanced Research in Fluid Flow (CARIFF), Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Gambang 26300, Kuantan, Malaysia.,Institute of Radiation and Polymer Technology, Bangladesh Atomic Energy Commission, Dhaka, Bangladesh
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13
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Govindarajan D, Lakra R, Korapatti PS, Ramasamy J, Kiran MS. Nanoscaled Biodegradable Metal-Polymeric Three-Dimensional Framework for Endothelial Cell Patterning and Sustained Angiogenesis. ACS Biomater Sci Eng 2019; 5:2519-2531. [PMID: 33405758 DOI: 10.1021/acsbiomaterials.9b00267] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The current work describes the development of a nanoscaled biodegradable metal polymeric three-dimensional framework with controlled nanotherapeutic release for endothelial cell patterning and sustained angiogenesis for biomedical applications. Biocompatible polymers gelatin and PLGA were used as polymeric nanofibrous three-dimensional framework in a core-shell manner with the gelatin core containing a biodegradable and bioactive metal nanoframework of cobalt caged with PEGylated curcumin by coaxial electrospinning. FTIR results confirmed the presence of nanobioactives in the core region of a coaxial nanofiber. Scanning electron microscopic analysis of the coaxial nanofibrous system showed a three-dimensional architecture that favored endothelial cell adhesion, patterning, migration, and proliferation. The as-synthesized nanoscaled biodegradable metal polymeric three-dimensional core-shell nanofibers exhibited potent antibacterial efficacy. Further, it improved the endothelial cell patterning promoting angiogenesis. The high therapeutic potential of cobalt nanoframework in the nanofibers enhanced the production of vascular endothelial growth factor promoting angiogenesis that resulted in the earlier restoration of wounded tissue compared with untreated control in vivo animal models. The study opens up a new horizon in exploring biodegradable biosorbable metal nanoframework for biomaterial applications. Additionally, the present study opens up a new strategy in developing biodegradable biosorbable biomaterial with enhanced vascularization efficacy to the biomaterial, which is important for acceptance of these biomaterials into the host tissue.
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Affiliation(s)
- Dharunya Govindarajan
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu 600020, India
| | - Rachita Lakra
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu 600020, India
| | - Purna Sai Korapatti
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu 600020, India.,Academy of Scientific and Innovative Research, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu 600020, India
| | - Jayavel Ramasamy
- Centre for Research, Anna University, Chennai, Tamil Nadu 600025, India
| | - Manikantan Syamala Kiran
- Biological Materials Laboratory, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu 600020, India.,Academy of Scientific and Innovative Research, CSIR-Central Leather Research Institute, Adyar, Chennai, Tamil Nadu 600020, India
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14
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Liu Y, Zhou S, Gao Y, Zhai Y. Electrospun nanofibers as a wound dressing for treating diabetic foot ulcer. Asian J Pharm Sci 2019; 14:130-143. [PMID: 32104445 PMCID: PMC7032134 DOI: 10.1016/j.ajps.2018.04.004] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Revised: 03/25/2018] [Accepted: 04/19/2018] [Indexed: 01/14/2023] Open
Abstract
Diabetes is one of the most prevalent diseases in the world with high-mortality and complex complications including diabetic foot ulcer (DFU). It has been reported that the difficulties in repairing the wound related to DFU has much relationship with the wound infection, change of inflammatory responses, lack of extracellular matrix (ECM), and the failure of angiogenesis. Following the development of medical materials and pharmaceutical technology, nanofibers has been developed by electrospinning with huge porosity, excellent humidity absorption, a better oxygen exchange rate, and some antibacterial activities. That is to say, as a potential material, nanofibers must be a wonderful candidate for the DFU treatment with so many benefits. Careful selection of polymers from natural resource and synthetic resource can widen the nanofibrous application. Popular methods applied for the nanofibrous fabrication consist of uniaxial electrospinning and coaxial electrospinning. Furthermore, nanofibers loading chemical, biochemical active pharmaceutical ingredient (API) or even stem cells can be wonderful dosage forms for the treatment of DFU. This review summarizes the present techniques applied in the fabrication of nanofibrous dressing (ND) that utilizes a variety of materials and active agents to offer a better health care for the patients suffering from DFU.
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Affiliation(s)
- Yan Liu
- Shenyang Pharmaceutical University, No.103, Shenyang 110016, China
| | - Shiya Zhou
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yanlin Gao
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Yinglei Zhai
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, China
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15
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Giram PS, Shitole A, Nande SS, Sharma N, Garnaik B. Fast dissolving moxifloxacin hydrochloride antibiotic drug from electrospun Eudragit L-100 nonwoven nanofibrous Mats. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:526-539. [DOI: 10.1016/j.msec.2018.06.031] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 06/01/2018] [Accepted: 06/13/2018] [Indexed: 02/07/2023]
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16
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Mabrouk M, Kumar P, Choonara YE, du Toit LC, Pillay V. Artificial, Triple-Layered, Nanomembranous Wound Patch for Potential Diabetic Foot Ulcer Intervention. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2128. [PMID: 30380682 PMCID: PMC6265852 DOI: 10.3390/ma11112128] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/20/2018] [Accepted: 10/23/2018] [Indexed: 12/24/2022]
Abstract
The present work aims to electrospin a triple layered wound patch for potential treatment of diabetic foot ulcers (DFU). The patch consisted of poly(acrylic acid) (PAA) as the skin contacting layer, polyvinyl pyrrolidone (PVP) as the middle layer, and polycaprolactone (PCL) as the outermost layer, wherein the PVP layer was loaded in situ with an antibiotic (ciprofloxacin, CFX). Morphology and mechanical properties were investigated using SEM and texture analysis. Patch quality was studied with regards to wettability, adherence, water resistance, and moisture uptake of individual layers. SEM results confirmed the fibrous and membranous nature of layers with a nano-to-micro size range. Mechanical properties of the composite patch demonstrated a tensile strength of 12.8 ± 0.5 MPa, deformation energy of 54.35 ± 0.1 J/m³, and resilience of 17.8 ± 0.7%, which were superior compared to individual layers. Patch quality tests revealed that the PCL layer showed very low wettability, adherence, and moisture uptake compared to the PVP and PAA layers. In vitro drug release data revealed an increase in cumulative drug release with higher drug loading. The results above confirm the potential of a triple layered, tripolymeric, wound patch for DFU intervention.
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Affiliation(s)
- Mostafa Mabrouk
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2109, South Africa.
- Refractories, Ceramics and Building Materials Department, National Research Centre, 33 El Bohouthst. (former EL Tahrirst.), Dokki, Giza P.O.12622, Egypt.
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2109, South Africa.
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2109, South Africa.
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2109, South Africa.
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutics, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2109, South Africa.
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17
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Kim YA, Kim DH, Park CB, Park TS, Park BJ. Anti-Inflammatory and Skin-Moisturizing Effects of a Flavonoid Glycoside Extracted from the Aquatic Plant Nymphoides indica in Human Keratinocytes. Molecules 2018; 23:molecules23092342. [PMID: 30216992 PMCID: PMC6225133 DOI: 10.3390/molecules23092342] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 01/12/2023] Open
Abstract
Nymphoides indica, an aquatic plant, is used as folk medicine in some countries. Our previous study demonstrated that the methanol extract of N. indica inhibited the activity of tyrosinases, tyrosine related protein (TRP)1 and TRP2, and microphthalmia-associated transcription factor, as well as the activity of protein kinase A, by effectively inhibiting cyclic adenosine monophosphate. Although the biological activities of N. indica extract have been reported, there are no reports on the skin bioactivity of the main compound(s) on human keratinocytes. This study investigated the anti-inflammatory and moisturizing effects of quercetin 3,7-dimethyl ether 4′-glucoside (QDG) isolated from N. indica. In brief, ultraviolet B irradiated keratinocytes were pretreated with different concentrations of QDG, and the effects of QDG on various inflammatory markers were determined. QDG significantly inhibited inflammation-related cytokines and chemokines and enhanced the activation of skin barrier factors. Additionally, QDG also attenuated phosphorylation inhibition of the upstream cytokines and nuclear factor-κB expression. These results suggest that QDG isolated from N. indica may serve as a potential source of bioactive substances for chronic inflammatory skin diseases.
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Affiliation(s)
- You Ah Kim
- Skin Science Research Institute, Kolmar Korea Co., Ltd., Chungcheongbukdo 28116, Korea.
| | - Dong Hee Kim
- Traditional Korean Medicine Technology Division, National Development Institute of Korean Medicine, Gyeongsangbuk-do 38540, Korea.
| | - Chae Bin Park
- Skin Science Research Institute, Kolmar Korea Co., Ltd., Chungcheongbukdo 28116, Korea.
| | - Tae Soon Park
- Traditional Korean Medicine Technology Division, National Development Institute of Korean Medicine, Gyeongsangbuk-do 38540, Korea.
| | - Byoung Jun Park
- Skin Science Research Institute, Kolmar Korea Co., Ltd., Chungcheongbukdo 28116, Korea.
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18
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Ashtikar M, Wacker MG. Nanopharmaceuticals for wound healing - Lost in translation? Adv Drug Deliv Rev 2018; 129:194-218. [PMID: 29567397 DOI: 10.1016/j.addr.2018.03.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 02/19/2018] [Accepted: 03/13/2018] [Indexed: 12/17/2022]
Abstract
Today, many of the newly developed pharmaceuticals and medical devices take advantage of nanotechnology and with a rising incidence of chronic diseases such as diabetes and cardiovascular disease, the number of patients afflicted globally with non-healing wounds is growing. This has created a requirement for improved therapies and wound care. However, converting the strategies applied in early research into new products is still challenging. Many of them fail to comply with the market requirements. This review discusses the legal and scientific challenges in the design of nanomedicines for wound healing. Are they lost in translation or is there a new generation of therapeutics in the pipeline?
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Affiliation(s)
- Mukul Ashtikar
- Department of Pharmaceutical Technology and Nanosciences, Fraunhofer-Institute for Molecular Biology and Applied Ecology (IME), Frankfurt, Germany; Institute of Pharmaceutical Technology, Goethe University, Frankfurt, Germany
| | - Matthias G Wacker
- Department of Pharmaceutical Technology and Nanosciences, Fraunhofer-Institute for Molecular Biology and Applied Ecology (IME), Frankfurt, Germany; Institute of Pharmaceutical Technology, Goethe University, Frankfurt, Germany.
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19
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Kim BE, Goleva E, Hall CF, Park SH, Lee UH, Brauweiler AM, Streib JE, Richers BN, Kim G, Leung DYM. Skin Wound Healing Is Accelerated by a Lipid Mixture Representing Major Lipid Components of Chamaecyparis obtusa Plant Extract. J Invest Dermatol 2017; 138:1176-1186. [PMID: 29277539 DOI: 10.1016/j.jid.2017.11.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 10/19/2017] [Accepted: 11/07/2017] [Indexed: 01/13/2023]
Abstract
In chronic nonhealing wounds, the healing process is disrupted and wounds are often infected with bacteria. About 85% of lower extremity amputations in diabetes are attributed to deep infection of foot ulcers. Therefore, infection control is critical for wound care. In this study, we analyzed lipid composition of Chamaecyparis obtusa extract, and we describe the wound-healing properties of its combination of 10 major lipid components. A 10-lipid mixture up-regulated HBD-3 and LL-37 through the olfactory receptor 2AT4 and induced phosphorylation of extracellular signal-regulated kinases and p38 mitogen-activated protein kinases in primary human keratinocytes. In addition, the 10-lipid mixture had direct bactericidal effects against Staphylococcus aureus and Streptococcus pyogenes and protected against staphylococcal α-toxin-induced keratinocyte cell death. In an animal model, the 10-lipid mixture accelerated skin wound healing and was also effective in healing wounds superinfected with S. aureus. We suggest that the 10-lipid mixture, because of its wound-healing and antimicrobial properties, can be beneficial for wound treatment.
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Affiliation(s)
- Byung Eui Kim
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Elena Goleva
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Clifton F Hall
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Sang Hyun Park
- Department of Urology, Haeundae Paik Hospital, Inje University College of Medicine, Pusan, Korea
| | - Un Ha Lee
- Department of Dermatology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Anne M Brauweiler
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | - Joanne E Streib
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA
| | | | | | - Donald Y M Leung
- Department of Pediatrics, National Jewish Health, Denver, Colorado, USA; Department of Pediatrics, University of Colorado, Aurora, Colorado, USA.
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20
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Singh R, Shitiz K, Singh A. Chitin and chitosan: biopolymers for wound management. Int Wound J 2017; 14:1276-1289. [PMID: 28799228 DOI: 10.1111/iwj.12797] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/02/2017] [Indexed: 12/11/2022] Open
Abstract
Chitin and chitosan are biopolymers with excellent bioactive properties, such as biodegradability, non-toxicity, biocompatibility, haemostatic activity and antimicrobial activity. A wide variety of biomedical applications for chitin and chitin derivatives have been reported, including wound-healing applications. They are reported to promote rapid dermal regeneration and accelerate wound healing. A number of dressing materials based on chitin and chitosan have been developed for the treatment of wounds. Chitin and chitosan with beneficial intrinsic properties and high potential for wound healing are attractive biopolymers for wound management. This review presents an overview of properties, biomedical applications and the role of these biopolymers in wound care.
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Affiliation(s)
- Rita Singh
- Defence Laboratory, Defence Research and Development Organization, Jodhpur, India
| | - Kirti Shitiz
- Defence Laboratory, Defence Research and Development Organization, Jodhpur, India
| | - Antaryami Singh
- Defence Laboratory, Defence Research and Development Organization, Jodhpur, India
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21
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Felgueiras HP, Amorim MTP. Functionalization of electrospun polymeric wound dressings with antimicrobial peptides. Colloids Surf B Biointerfaces 2017; 156:133-148. [PMID: 28527357 DOI: 10.1016/j.colsurfb.2017.05.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 04/28/2017] [Accepted: 05/01/2017] [Indexed: 12/31/2022]
Abstract
Wound dressings have evolved considerably since ancient times. Modern dressings are now important systems that combine the physical and biochemical properties of natural and synthetic polymers with active compounds that are beneficial to wound healing. Antimicrobial peptides (AMPs) are the most recent addition to these systems. These aim to control the microbial proliferation and colonization of pathogens and to modulate the host's immune response. In the last decade, electrospun wound dressings have been extensively studied and the electrospinning technique recognized as an efficient approach for the production of nanoscale fibrous mats. The control of the electrospinning processing parameters, the selection of the polymer and AMPs, and the definition of the most appropriate AMPs' functionalization method contribute to the successful treatment of acute and chronic wounds. Although the use of electrospinning in wound dressings' production has been previously reviewed, the increased development of AMPs and the establishment of functionalization methods for wound dressings over recent years has increased the need for such research. In the present review, we approach all these subjects and reveal the promising therapeutic potential of wound dressings functionalized with AMPs.
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Affiliation(s)
- Helena P Felgueiras
- 2C2T, Centre for Science and Textile Technology, Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal.
| | - M Teresa P Amorim
- 2C2T, Centre for Science and Textile Technology, Department of Textile Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
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22
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Implications of molecular diversity of chitin and its derivatives. Appl Microbiol Biotechnol 2017; 101:3513-3536. [DOI: 10.1007/s00253-017-8229-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/26/2017] [Accepted: 03/04/2017] [Indexed: 02/03/2023]
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23
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Marine Collagen Peptides from the Skin of Nile Tilapia (Oreochromis niloticus): Characterization and Wound Healing Evaluation. Mar Drugs 2017; 15:md15040102. [PMID: 28358307 PMCID: PMC5408248 DOI: 10.3390/md15040102] [Citation(s) in RCA: 117] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 03/26/2017] [Accepted: 03/27/2017] [Indexed: 12/20/2022] Open
Abstract
Burns can cause tremendous economic problems associated with irreparable harm to patients and their families. To characterize marine collagen peptides (MCPs) from the skin of Nile tilapia (Oreochromis niloticus), molecular weight distribution and amino acid composition of MCPs were determined, and Fourier transform infrared spectroscopy (FTIR) was used to analyze the chemical structure. Meanwhile, to evaluate the wound healing activity, in vitro and in vivo experiments were carried out. The results showed that MCPs prepared from the skin of Nile tilapia by composite enzymatic hydrolysis were composed of polypeptides with different molecular weights and the contents of polypeptides with molecular weights of less than 5 kDa accounted for 99.14%. From the amino acid composition, the majority of residues, accounting for over 58% of the total residues in MCPs, were hydrophilic. FTIR indicated that the main molecular conformations inside MCPs were random coil. In vitro scratch assay showed that there were significant effects on the scratch closure by the treatment of MCPs with the concentration of 50.0 μg/mL. In the experiments of deep partial-thickness scald wound in rabbits, MCPs could enhance the process of wound healing. Therefore, MCPs from the skin of Nile tilapia (O. niloticus) have promising applications in wound care.
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24
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Kim BJ, Cheong H, Choi ES, Yun SH, Choi BH, Park KS, Kim IS, Park DH, Cha HJ. Accelerated skin wound healing using electrospun nanofibrous mats blended with mussel adhesive protein and polycaprolactone. J Biomed Mater Res A 2016; 105:218-225. [DOI: 10.1002/jbm.a.35903] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/12/2016] [Accepted: 09/14/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Bum Jin Kim
- Department of Chemical Engineering; Pohang University of Science and Technology; Pohang 790-784 Korea
| | - Hogyun Cheong
- Department of Chemical Engineering; Pohang University of Science and Technology; Pohang 790-784 Korea
| | - Eun-Som Choi
- Department of Plastic and Reconstructive Surgery; Daegu Catholic University Medical Center; Daegu 705-718 Korea
| | - So-Hee Yun
- Department of Plastic and Reconstructive Surgery; Daegu Catholic University Medical Center; Daegu 705-718 Korea
| | - Bong-Hyuk Choi
- Department of Chemical Engineering; Pohang University of Science and Technology; Pohang 790-784 Korea
| | - Ki-Soo Park
- Department of Plastic and Reconstructive Surgery; Daegu Catholic University Medical Center; Daegu 705-718 Korea
| | - Ick Soo Kim
- Nano Fusion Technology Research Group, Division of Frontier Fibers, Institute for Fiber Engineering, Interdisciplinary Cluster for Cutting Edge Research; Shinshu University; Ueda 386-8567 Japan
| | - Dae-Hwan Park
- Department of Plastic and Reconstructive Surgery; Daegu Catholic University Medical Center; Daegu 705-718 Korea
| | - Hyung Joon Cha
- Department of Chemical Engineering; Pohang University of Science and Technology; Pohang 790-784 Korea
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Choi JS, Kim DW, Kim DS, Kim JO, Yong CS, Cho KH, Youn YS, Jin SG, Choi HG. Novel neomycin sulfate-loaded hydrogel dressing with enhanced physical dressing properties and wound-curing effect. Drug Deliv 2015; 23:2806-2812. [PMID: 26394193 DOI: 10.3109/10717544.2015.1089958] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
To develop a novel neomycin sulfate-loaded hydrogel dressing (HD), numerous neomycin sulfate-loaded HDs were prepared with various amounts of polyvinyl alcohol (PVA), polyvinyl pyrrolidone (PVP) and sodium alginate (SA) using freeze-thawing technique, and their physical dressing properties, drug release, in vivo wound curing and histopathology in diabetic-induced rats were assessed. SA had a positive effect on a swelling capacity, but a negative effect on the physical dressing properties and drug release of HD. However, PVP did the opposite. In particular, the neomycin sulfate-loaded HD composed of drug, PVA, PVP and SA at the weight ratio of 1/10/0.8/0.8 had excellent swelling and bioadhesive capacity, good elasticity and fast drug release. Moreover, this HD gave more improved wound curing effect compared to the commercial product, ensured the disappearance of granulation tissue and recovered the wound tissue to normal. Therefore, this novel neomycin sulfate-loaded HD could be an effective pharmaceutical product for the treatment of wounds.
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Affiliation(s)
- Jong Seo Choi
- a College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University , Ansan , South Korea
| | - Dong Wuk Kim
- a College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University , Ansan , South Korea
| | - Dong Shik Kim
- a College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University , Ansan , South Korea
| | - Jong Oh Kim
- b College of Pharmacy, Yeungnam University , Gyongsan , South Korea
| | - Chul Soon Yong
- b College of Pharmacy, Yeungnam University , Gyongsan , South Korea
| | - Kwan Hyung Cho
- c College of Pharmacy, Inje University , Gimhae , South Korea , and
| | - Yu Seok Youn
- d School of Pharmacy, Sungkyunkwan University , Suwon , South Korea
| | - Sung Giu Jin
- a College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University , Ansan , South Korea
| | - Han-Gon Choi
- a College of Pharmacy, Institute of Pharmaceutical Science and Technology, Hanyang University , Ansan , South Korea
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26
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Chitin, chitosan, and its derivatives for wound healing: old and new materials. J Funct Biomater 2015; 6:104-42. [PMID: 25780874 PMCID: PMC4384104 DOI: 10.3390/jfb6010104] [Citation(s) in RCA: 227] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 03/06/2015] [Accepted: 03/06/2015] [Indexed: 12/19/2022] Open
Abstract
Chitin (β-(1-4)-poly-N-acetyl-d-glucosamine) is widely distributed in nature and is the second most abundant polysaccharide after cellulose. It is often converted to its more deacetylated derivative, chitosan. Previously, many reports have indicated the accelerating effects of chitin, chitosan, and its derivatives on wound healing. More recently, chemically modified or nano-fibrous chitin and chitosan have been developed, and their effects on wound healing have been evaluated. In this review, the studies on the wound-healing effects of chitin, chitosan, and its derivatives are summarized. Moreover, the development of adhesive-based chitin and chitosan are also described. The evidence indicates that chitin, chitosan, and its derivatives are beneficial for the wound healing process. More recently, it is also indicate that some nano-based materials from chitin and chitosan are beneficial than chitin and chitosan for wound healing. Clinical applications of nano-based chitin and chitosan are also expected.
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Zhao R, Li X, Sun B, Tong Y, Jiang Z, Wang C. Nitrofurazone-loaded electrospun PLLA/sericin-based dual-layer fiber mats for wound dressing applications. RSC Adv 2015. [DOI: 10.1039/c4ra16208k] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Dual-layer nitrofurazone-loaded nanofiber mats are fabricated by electrospinning with good antibacterial activity and the mats perform well in wound healing.
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Affiliation(s)
- Rui Zhao
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - Xiang Li
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - Bolun Sun
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - Yan Tong
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - Ziqiao Jiang
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
| | - Ce Wang
- Alan G. MacDiarmid Institute
- Jilin University
- Changchun 130012
- P. R. China
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29
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Muzzarelli RAA, El Mehtedi M, Mattioli-Belmonte M. Emerging biomedical applications of nano-chitins and nano-chitosans obtained via advanced eco-friendly technologies from marine resources. Mar Drugs 2014; 12:5468-502. [PMID: 25415349 PMCID: PMC4245541 DOI: 10.3390/md12115468] [Citation(s) in RCA: 113] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 11/02/2014] [Accepted: 11/03/2014] [Indexed: 12/31/2022] Open
Abstract
The present review article is intended to direct attention to the technological advances made in the 2010-2014 quinquennium for the isolation and manufacture of nanofibrillar chitin and chitosan. Otherwise called nanocrystals or whiskers, n-chitin and n-chitosan are obtained either by mechanical chitin disassembly and fibrillation optionally assisted by sonication, or by e-spinning of solutions of polysaccharides often accompanied by poly(ethylene oxide) or poly(caprolactone). The biomedical areas where n-chitin may find applications include hemostasis and wound healing, regeneration of tissues such as joints and bones, cell culture, antimicrobial agents, and dermal protection. The biomedical applications of n-chitosan include epithelial tissue regeneration, bone and dental tissue regeneration, as well as protection against bacteria, fungi and viruses. It has been found that the nano size enhances the performances of chitins and chitosans in all cases considered, with no exceptions. Biotechnological approaches will boost the applications of the said safe, eco-friendly and benign nanomaterials not only in these fields, but also for biosensors and in targeted drug delivery areas.
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Affiliation(s)
- Riccardo A A Muzzarelli
- Faculty of Medicine, Department of Clinical & Molecular Sciences, Polytechnic University of Marche, IT-60100 Ancona, Italy.
| | - Mohamad El Mehtedi
- Faculty of Engineering, Department of Industrial Engineering & Mathematical Sciences, Polytechnic University of Marche, IT-60100 Ancona, Italy.
| | - Monica Mattioli-Belmonte
- Faculty of Medicine, Department of Clinical & Molecular Sciences, Polytechnic University of Marche, IT-60100 Ancona, Italy.
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30
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Ifuku S. Chitin and chitosan nanofibers: preparation and chemical modifications. Molecules 2014; 19:18367-80. [PMID: 25393598 PMCID: PMC6271128 DOI: 10.3390/molecules191118367] [Citation(s) in RCA: 162] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 10/15/2014] [Accepted: 11/04/2014] [Indexed: 01/20/2023] Open
Abstract
Chitin nanofibers are prepared from the exoskeletons of crabs and prawns, squid pens and mushrooms by a simple mechanical treatment after a series of purification steps. The nanofibers have fine nanofiber networks with a uniform width of approximately 10 nm. The method used for chitin-nanofiber isolation is also successfully applied to the cell walls of mushrooms. Commercial chitin and chitosan powders are also easily converted into nanofibers by mechanical treatment, since these powders consist of nanofiber aggregates. Grinders and high-pressure waterjet systems are effective for disintegrating chitin into nanofibers. Acidic conditions are the key factor to facilitate mechanical fibrillation. Surface modification is an effective way to change the surface property and to endow nanofiber surface with other properties. Several modifications to the chitin NF surface are achieved, including acetylation, deacetylation, phthaloylation, naphthaloylation, maleylation, chlorination, TEMPO-mediated oxidation, and graft polymerization. Those derivatives and their properties are characterized.
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Affiliation(s)
- Shinsuke Ifuku
- Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8550, Japan.
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31
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Ding F, Deng H, Du Y, Shi X, Wang Q. Emerging chitin and chitosan nanofibrous materials for biomedical applications. NANOSCALE 2014; 6:9477-93. [PMID: 25000536 DOI: 10.1039/c4nr02814g] [Citation(s) in RCA: 181] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Over the past several decades, we have witnessed significant progress in chitosan and chitin based nanostructured materials. The nanofibers from chitin and chitosan with appealing physical and biological features have attracted intense attention due to their excellent biological properties related to biodegradability, biocompatibility, antibacterial activity, low immunogenicity and wound healing capacity. Various methods, such as electrospinning, self-assembly, phase separation, mechanical treatment, printing, ultrasonication and chemical treatment were employed to prepare chitin and chitosan nanofibers. These nanofibrous materials have tremendous potential to be used as drug delivery systems, tissue engineering scaffolds, wound dressing materials, antimicrobial agents, and biosensors. This review article discusses the most recent progress in the preparation and application of chitin and chitosan based nanofibrous materials in biomedical fields.
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Affiliation(s)
- Fuyuan Ding
- School of Resource and Environmental Science and Hubei Biomass-Resource Chemistry and Environmental Biotechnology Key Laboratory, Wuhan University, Wuhan, 430079, China.
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Kumar PTS, Lakshmanan VK, Anilkumar TV, Ramya C, Reshmi P, Unnikrishnan AG, Nair SV, Jayakumar R. Flexible and microporous chitosan hydrogel/nano ZnO composite bandages for wound dressing: in vitro and in vivo evaluation. ACS APPLIED MATERIALS & INTERFACES 2012; 4:2618-29. [PMID: 22489770 DOI: 10.1021/am300292v] [Citation(s) in RCA: 476] [Impact Index Per Article: 39.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Current wound dressings have disadvantages such as less flexibility, poor mechanical strength, lack of porosity, and a tendency for dressings to adhere onto the wound surface; in addition, a majority of the dressings did not possess antibacterial activity. Hydrogel-based wound dressings would be helpful to provide a cooling sensation and a moisture environment, as well as act as a barrier to microbes. To overcome these hassles, we have developed flexible and microporous chitosan hydrogel/nano zinc oxide composite bandages (CZBs) via the incorporation of zinc oxide nanoparticles (nZnO) into chitosan hydrogel. The prepared nanocomposite bandages were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffractometry (XRD), and scanning electron microscopy (SEM). In addition, swelling, degradation, blood clotting, antibacterial, cytocompatibility, cell attachment on the material, and cell infiltration into the composite bandages were evaluated. The nanocomposite bandage showed enhanced swelling, blood clotting, and antibacterial activity. Cytocompatibility of the composite bandage has been analyzed in normal human dermal fibroblast cells. Cell attachment and infiltration studies showed that the cells were found attached to the nanocomposite bandages and penetrated into the interior. Furthermore, the in vivo evaluations in Sprague-Dawley rats revealed that these nanocomposite bandages enhanced the wound healing and helped for faster re-epithelialization and collagen deposition. The obtained data strongly encourage the use of these composite bandages for burn wounds, chronic wounds, and diabetic foot ulcers.
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Affiliation(s)
- P T Sudheesh Kumar
- Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham University, Kochi-682 041, India
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