51
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Okur ME, Ayla Ş, Yozgatlı V, Aksu NB, Yoltaş A, Orak D, Sipahi H, Üstündağ Okur N. Evaluation of burn wound healing activity of novel fusidic acid loaded microemulsion based gel in male Wistar albino rats. Saudi Pharm J 2020; 28:338-348. [PMID: 32194336 PMCID: PMC7078556 DOI: 10.1016/j.jsps.2020.01.015] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 01/29/2020] [Indexed: 01/26/2023] Open
Abstract
The objective of the present research was to examine the possible usage of microemulsion based gel for fusidic acid (FA) dermal application as burn wound treatment. During the preparation of microemulsion, ethyl oleate as oil phase, tween 80 as a surfactant, ethanol as co-surfactant, water as aqueous phase were used. The prepared microemulsions were evaluated for clarity, pH, viscosity and FA content. Moreover, stability, sterility, antibacterial activity, in vitro release of the formulations were also evaluated. The results showed that the FA loaded microemulsion and microemulsion based gel formation and characteristics were related to many parameters of the components. The performed optimized microemulsion-based gel showed good stability over a period of 3 months. The antibacterial activity of microemulsion-based gel was found to be comparable with marketed cream. RAW 264.7 macrophages were used to determine cell viability (MTT assay) and nitric oxide production. MBG and FA-MBG significantly inhibit the production of the inflammatory mediator NO in LPS-stimulated RAW 264.7 cells in a concentration-dependent manner. The wound healing property was evaluated by histopathological examination and by measuring the wound contraction. The % of wound area in rats treated with FA (2%) loaded microemulsion based gel ranged from 69.30% to 41.39% in the period from 3 to 10 days. In conclusion, FA loaded microemulsion based gel could be offered as encouraging strategy as dermal systems for the burn wound treatment.
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Affiliation(s)
- Mehmet Evren Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmacology, İstanbul, Turkey
| | - Şule Ayla
- Istanbul Medipol University, School of Medicine, Department of Histology and Embryology, Beykoz, 34810 Istanbul, Turkey
| | - Vildan Yozgatlı
- Ege University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Bornova, 35100 Izmir, Turkey
| | - Neşe Buket Aksu
- Altınbas University, School of Pharmacy, Department of Pharmaceutical Technology, 34217 Istanbul, Turkey
| | - Ayşegül Yoltaş
- Ege University, Faculty of Science, Department of Biology, Fundamental and Industrial Microbiology Division, Bornova, Izmir, Turkey
| | - Duygu Orak
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey.,Yeditepe University, Faculty of Engineering, Genetics and Bioengineering Department, Istanbul, Turkey
| | - Hande Sipahi
- Yeditepe University, Faculty of Pharmacy, Department of Toxicology, Istanbul, Turkey
| | - Neslihan Üstündağ Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul, Turkey
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52
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Li Z, Zeng R, Yang L, Ren X, Maffucci KG, Qu Y. Development and Characterization of PCL Electrospun Membrane-Coated Bletilla striata Polysaccharide-Based Gastroretentive Drug Delivery System. AAPS PharmSciTech 2020; 21:66. [PMID: 31932983 DOI: 10.1208/s12249-019-1607-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 12/10/2019] [Indexed: 12/12/2022] Open
Abstract
The purpose of this study was to investigate the potential of Bletilla striata polysaccharide (BSP, a natural glucomannan material) for the development of a gastroretentive drug delivery system for the first time. Novel BSP-based porous wafer was prepared for levofloxacin hydrochloride (LFH) delivery by combining floating, swelling, and mucoadhesion mechanisms. The influences of BSP and ethyl cellulose (EC) on drug release and mucoadhesive strength were studied by 32 factorial design. The optimized matrix was coated with polycaprolactone (PCL) electrospun membrane by electrospinning and heat treatment technology. The optimized formula (F6, coated) exhibited Q4 h of 41.20 ± 1.90%, Q8 h of 76.49 ± 1.69%, and mucoadhesive strength of 86.11 ± 1.33 gf, and its drug release profile most closely resembled the Korsmeyer-Peppas model with anomalous diffusion driving mechanism. F6 (coated) also presented excellent buoyancy, preferred swelling characteristic due to the porous structure formed by freeze-drying. Meanwhile, the internal morphology, physical state, drug-excipient compatibility, and thermal behavior were recorded. The negligible cytotoxicity of F6 (coated) was observed in human gastric epithelial cell cultures. In the in vitro antimicrobial experiment, the prepared wafer exhibited obvious bacterial inhibition zone, and due to its longer gastric retention, the wafer also performed a more effective Helicobacter pylori clearance than free LFH in vivo. Graphical abstract.
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53
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Mndlovu H, du Toit LC, Kumar P, Choonara YE, Marimuthu T, Kondiah PPD, Pillay V. Bioplatform Fabrication Approaches Affecting Chitosan-Based Interpolymer Complex Properties and Performance as Wound Dressings. Molecules 2020; 25:E222. [PMID: 31935794 PMCID: PMC6982769 DOI: 10.3390/molecules25010222] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/12/2019] [Accepted: 12/26/2019] [Indexed: 02/05/2023] Open
Abstract
Chitosan can form interpolymer complexes (IPCs) with anionic polymers to form biomedical platforms (BMPs) for wound dressing/healing applications. This has resulted in its application in various BMPs such as gauze, nano/microparticles, hydrogels, scaffolds, and films. Notably, wound healing has been highlighted as a noteworthy application due to the remarkable physical, chemical, and mechanical properties enabled though the interaction of these polyelectrolytes. The interaction of chitosan and anionic polymers can improve the properties and performance of BMPs. To this end, the approaches employed in fabricating wound dressings was evaluated for their effect on the property-performance factors contributing to BMP suitability in wound dressing. The use of chitosan in wound dressing applications has had much attention due to its compatible biological properties. Recent advancement includes the control of the degree of crosslinking and incorporation of bioactives in an attempt to enhance the physicochemical and physicomechanical properties of wound dressing BMPs. A critical issue with polyelectrolyte-based BMPs is that their effective translation to wound dressing platforms has yet to be realised due to the unmet challenges faced when mimicking the complex and dynamic wound environment. Novel BMPs stemming from the IPCs of chitosan are discussed in this review to offer new insight into the tailoring of physical, chemical, and mechanical properties via fabrication approaches to develop effective wound dressing candidates. These BMPs may pave the way to new therapeutic developments for improved patient outcomes.
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Affiliation(s)
| | | | | | | | | | | | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; (H.M.); (L.C.d.T.); (P.K.); (Y.E.C.); (T.M.); (P.P.D.K.)
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54
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Carboxymethyl cellulose-human hair keratin hydrogel with controlled clindamycin release as antibacterial wound dressing. Int J Biol Macromol 2019; 147:1239-1247. [PMID: 31739046 DOI: 10.1016/j.ijbiomac.2019.09.251] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 09/17/2019] [Accepted: 09/30/2019] [Indexed: 11/20/2022]
Abstract
This study offers a new antibacterial wound dressing from carboxymethyl cellulose (CMC)-human hair keratin with topical clindamycin delivery. Keratin was successfully extracted from human hair. Different sponges fabricated by changing CMC to keratin ratio were characterized and compared. Halloysite nanotubes were used as carriers to control the clindamycin release. Various characterization techniques were used to determine the effects of keratin addition on the structure, morphology, physical properties, drug release, antibacterial activity, and cellular behavior of CMC hydrogels. As proved by SEM and EDS, porous structure with interconnected pores was successfully formed and clindamycin-loaded HNTs were uniformly dispersed within the porous structures. Increasing the keratin in CMC hydrogel not only lowered its water vapor transmission rate to a suitable range for wound healing but also improved the water stability of CMC hydrogel. The in vitro release study indicated that clindamycin was released slower in samples containing higher keratin and the Fickian diffusion mechanism controlled their release profile. The fabricated dressing effectively inhibits S. aureus bacterial colonies growth after 24 h. Fibroblast culturing on the fabricated sponges indicated that cellular attachment, proliferation, and spreading were significantly enhanced with increasing the keratin amount.
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55
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Mndlovu H, du Toit LC, Kumar P, Marimuthu T, Kondiah PP, Choonara YE, Pillay V. Development of a fluid-absorptive alginate-chitosan bioplatform for potential application as a wound dressing. Carbohydr Polym 2019; 222:114988. [DOI: 10.1016/j.carbpol.2019.114988] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/30/2019] [Accepted: 06/09/2019] [Indexed: 01/10/2023]
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56
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Rezaei Hosseinabadi S, Parsapour A, Nouri Khorasani S, Razavi SM, Hashemibeni B, Heidari F, Khalili S. Wound dressing application of castor oil- and CAPA-based polyurethane membranes. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-02891-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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57
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Ozdabak‐Sert AB, Sen B, Kok FN. Construction of a sandwich‐type wound dressing with pain‐reliever and pH‐responsive antibiotic delivery system. J Appl Polym Sci 2019. [DOI: 10.1002/app.48252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ayse Buse Ozdabak‐Sert
- Molecular Biology‐Genetics and Biotechnology ProgramIstanbul Technical University, Maslak, 34469 Istanbul Turkey
| | - Beren Sen
- Molecular Biology‐Genetics and Biotechnology ProgramIstanbul Technical University, Maslak, 34469 Istanbul Turkey
| | - Fatma Nese Kok
- Molecular Biology‐Genetics and Biotechnology ProgramIstanbul Technical University, Maslak, 34469 Istanbul Turkey
- Molecular Biology and Genetics DepartmentIstanbul Technical University, Maslak, 34469 Istanbul Turkey
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58
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Kravanja G, Primožič M, Knez Ž, Leitgeb M. Chitosan-based (Nano)materials for Novel Biomedical Applications. Molecules 2019; 24:E1960. [PMID: 31117310 PMCID: PMC6572373 DOI: 10.3390/molecules24101960] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/15/2019] [Accepted: 05/18/2019] [Indexed: 02/03/2023] Open
Abstract
Chitosan-based nanomaterials have attracted significant attention in the biomedical field because of their unique biodegradable, biocompatible, non-toxic, and antimicrobial nature. Multiple perspectives of the proposed antibacterial effect and mode of action of chitosan-based nanomaterials are reviewed. Chitosan is presented as an ideal biomaterial for antimicrobial wound dressings that can either be fabricated alone in its native form or upgraded and incorporated with antibiotics, metallic antimicrobial particles, natural compounds and extracts in order to increase the antimicrobial effect. Since chitosan and its derivatives can enhance drug permeability across the blood-brain barrier, they can be also used as effective brain drug delivery carriers. Some of the recent chitosan formulations for brain uptake of various drugs are presented. The use of chitosan and its derivatives in other biomedical applications is also briefly discussed.
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Affiliation(s)
- Gregor Kravanja
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
| | - Mateja Primožič
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
| | - Željko Knez
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia.
| | - Maja Leitgeb
- University of Maribor; Faculty of Chemistry and Chemical Engineering; Laboratory for Separation Processes and Product Design; Smetanova ul. 17, 2000 Maribor, Slovenia.
- University of Maribor, Faculty of Medicine, Taborska ulica 8, 2000 Maribor, Slovenia.
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59
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Üstündağ Okur N, Hökenek N, Okur ME, Ayla Ş, Yoltaş A, Siafaka PI, Cevher E. An alternative approach to wound healing field; new composite films from natural polymers for mupirocin dermal delivery. Saudi Pharm J 2019; 27:738-752. [PMID: 31297030 PMCID: PMC6598503 DOI: 10.1016/j.jsps.2019.04.010] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 04/19/2019] [Indexed: 01/31/2023] Open
Abstract
In this study, novel adhesive films were prepared for Mupirocin dermal delivery. Natural polymers as chitosan, sodium alginate and carbopol were used for films development to evaluate possible interactions and drug release properties. Solvent evaporation method was used for films preparation. Preliminary studies involved FT-IR spectroscopy and Scanning Electron Microscopy to specify interactions and morphology. Thickness, tensile strength and water uptake in phosphate buffer saline were evaluated whereas in vitro release studies were also performed. In vitro drug release studies demonstrated that mupirocin release was improved. Ex vivo bioadhesion and permeation studies using Balb-c mice were performed to check the suitability of the films. Antimicrobial ability was evaluated by agar well diffusion tests. Finally, excisional wound model applied to test the wound healing effect and evaluated macroscopic and histopathologically. One formulation was found more effective compared to the market product for wound healing at Balb-c mice.
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Affiliation(s)
- Neslihan Üstündağ Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul, Turkey
| | - Nesrin Hökenek
- Istanbul Medipol University, School of Pharmacy, Department of Pharmaceutical Technology, Istanbul, Turkey
| | - Mehmet Evren Okur
- University of Health Sciences, Faculty of Pharmacy, Department of Pharmacology, İstanbul, Turkey
| | - Şule Ayla
- Istanbul Medipol University, School of Medicine, Department of Histology and Embryology, Beykoz, Istanbul, Turkey
| | - Ayşegül Yoltaş
- Ege University, Faculty of Science, Department of Biology, Fundamental and Industrial Microbiology Division, Bornova, Izmir, Turkey
| | - Panoraia I Siafaka
- Istanbul Medipol University, School of Pharmacy, Department of Pharmaceutical Technology, Istanbul, Turkey.,Aristotle University of Thessaloniki, Department of Chemistry, Thessaloniki, Greece
| | - Erdal Cevher
- Istanbul University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Istanbul, Turkey
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60
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Abstract
Biomimetic systems often exhibit striking designs well adapted to specific functions that have been inspiring the development of new technologies. Herein, we explored the remarkable ability of honey bees to catch and release large quantities of pollen grains. Hair spacing and height on bees are crucial for their ability to mechanically fix pollen grains. Inspired by this, we proposed the concept of a micropatterned surface for microparticle entrapment, featuring high-aspect-ratio elastic micropillars spaced to mimic the hairy surface of bees. The hypothesis was validated by investigating the ability of polydimethylsiloxane microfabricated patches to fix microparticles. The geometrical arrangement, spacing, height, and flexibility of the fabricated micropillars, and the diameter of the microparticles, were investigated. Higher entrapment capability was found through the match between particle size and pillar spacing, being consistent with the observations that the diameter of pollen grains is similar to the spacing between hairs on bees' legs. Taller pillars permitted immobilization of higher quantities of particles, consistent with the high aspect ratio of bees' hairs. Our biomimetic surfaces were explored for their ability to fix solid microparticles for drug-release applications, using tetracycline hydrochloride as a model antibiotic. These surfaces allowed fixation of more than 20 mg/cm2 of antibiotic, about five times higher dose than commercialized patches (5.1 mg/cm2). Such bioinspired hairy surfaces could find applications in a variety of fields where dry fixation of high quantities of micrometer-sized objects are needed, including biomedicine, agriculture, biotechnology/chemical industry, and cleaning utensils.
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61
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Das D, Cho H, Kim N, Pham TTH, Kim IG, Chung EJ, Noh I. A terpolymeric hydrogel of hyaluronate-hydroxyethyl acrylate-gelatin methacryloyl with tunable properties as biomaterial. Carbohydr Polym 2019; 207:628-639. [DOI: 10.1016/j.carbpol.2018.12.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 11/29/2018] [Accepted: 12/10/2018] [Indexed: 12/13/2022]
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62
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Siafaka P, Okur ME, Ayla Ş, Er S, Cağlar EŞ, Okur NÜ. Design and characterization of nanocarriers loaded with Levofloxacin for enhanced antimicrobial activity; physicochemical properties, in vitro release and oral acute toxicity. BRAZ J PHARM SCI 2019. [DOI: 10.1590/s2175-97902019000118295] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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63
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Michailidou G, Christodoulou E, Nanaki S, Barmpalexis P, Karavas E, Vergkizi-Nikolakaki S, Bikiaris DN. Super-hydrophilic and high strength polymeric foam dressings of modified chitosan blends for topical wound delivery of chloramphenicol. Carbohydr Polym 2018; 208:1-13. [PMID: 30658779 DOI: 10.1016/j.carbpol.2018.12.050] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/12/2018] [Accepted: 12/17/2018] [Indexed: 11/25/2022]
Abstract
In the present study polymer blends based on chitosan (CS) and its derivatives with trans-aconitic (t-Acon) acid and another with trimellitic (TRM) anhydride, were prepared for topical wound delivery of chloramphenicol (CHL). FT-IR spectroscopy revealed the successful grafting of t-Acon acid or TRM anhydride into CS macromolecules at molar ratios 1:1 and 1:0.5, while powder X-ray diffraction (XRD) analysis showed that the prepared materials were amorphous. Neat chitosan and its grafted derivatives were mixed in different ratios (25/75, 50/50 and 75/25 w/w) in order to prepare suitable blends. Scanning electron microscopy (SEM) showed that the formed blends after freeze-drying had a sponge-like structure, while thermogravimetric analysis (TGA) verified their thermal stability. All blends are miscible in studied compositions and have extensive swelling and much better mechanical properties than neat CS. In a further step, the obtained porous sponges prepared from CS/CS-derivatives 50/50 w/w were loaded with Chloramphenicol (10, 20 and 30 wt%), a broad-spectrum antibiotic, and the prepared dressings were evaluated in terms of FT-IR, XRD, SEM, and in vitro drug dissolution. An initial burst release followed by a quasi-Fickian diffusion driven sustained release phase was observed while the addition of chloramphenicol gives high antimicrobial properties to all dressings.
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Affiliation(s)
- Georgia Michailidou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Evi Christodoulou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stavroula Nanaki
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Panagiotis Barmpalexis
- Department of Pharmaceutical Technology, School of Pharmacy, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Evangelos Karavas
- Pharmathen S.A., Pharmaceutical Industry, Dervenakion Str 6, Pallini Attikis, GR-15351 Attiki, Greece
| | - Susan Vergkizi-Nikolakaki
- Department of Microbiology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece
| | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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64
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Mittal H, Ray SS, Kaith BS, Bhatia JK, Sukriti, Sharma J, Alhassan SM. Recent progress in the structural modification of chitosan for applications in diversified biomedical fields. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.10.013] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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65
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Singh B, Kumar A. Radiation-induced graft copolymerization of N‑vinyl imidazole onto moringa gum polysaccharide for making hydrogels for biomedical applications. Int J Biol Macromol 2018; 120:1369-1378. [DOI: 10.1016/j.ijbiomac.2018.09.148] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/24/2018] [Accepted: 09/23/2018] [Indexed: 11/16/2022]
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66
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Hadiya S, Liu X, Abd El-Hammed W, Elsabahy M, Aly SA. Levofloxacin-Loaded Nanoparticles Decrease Emergence of Fluoroquinolone Resistance in Escherichia coli. Microb Drug Resist 2018; 24:1098-1107. [DOI: 10.1089/mdr.2017.0304] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Safy Hadiya
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt
| | - Xiaoqiang Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Wegdan Abd El-Hammed
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Mahmoud Elsabahy
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, Egypt
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut, Egypt
- Laboratory for Synthetic-Biologic Interactions, Department of Chemistry, Texas A&M University, College Station, Texas
- Misr University for Science and Technology, 6th of October City, Egypt
| | - Sherine A. Aly
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
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67
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Synthesis and characterization of amoxicillin loaded poly (vinyl alcohol)-g-poly (acrylamide) (PVA-g-PAM) hydrogels and study of swelling triggered release of antibiotic drug. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2536-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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68
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Akiyode O, Boateng J. Composite Biopolymer-Based Wafer Dressings Loaded with Microbial Biosurfactants for Potential Application in Chronic Wounds. Polymers (Basel) 2018; 10:E918. [PMID: 30960843 PMCID: PMC6403717 DOI: 10.3390/polym10080918] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Revised: 08/03/2018] [Accepted: 08/13/2018] [Indexed: 11/24/2022] Open
Abstract
In this study two bioactive polysaccharide polymers kappa-carrageenan (CARR) and sodium alginate (SA) incorporated with microbial biosurfactants (BSs) were formulated as medicated wafer dressings for potential application in chronic wounds. Wafers were loaded with BSs at concentrations of 0.1% and 0.2% rhamnolipids (RL) and 0.1% and 5% sophorolipids (SL) and were functionally characterized using scanning electron microscopy (SEM), texture analysis (mechanical strength and in vitro wound adhesion), attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, X-ray diffraction (XRD) and exudate handling properties (pore analysis, swelling index, water absorption (Aw), equilibrium water content (EWC), evaporative water loss (EWL) and water vapor transmission rate (WVTR). The wafers were tactile and ductile in appearance with a hardness range of 2.7⁻4.1 N and can withstand normal stresses but are also flexible to prevent damage to newly formed skin tissues. Wafers were porous (SEM) with pore sizes ranging from 78.8 to 141 µm, and BSs were not visible on the wafer surface or pore walls. The BSs enhanced the porosity of the wafers with values above 98%, while the Aw and EWC ranged from 2699⁻3569% and 96.58⁻98.00%, respectively. The EWL ranged from 85 to 86% after 24 h while the WVTR ranged from 2702⁻3080 g/m² day-1. The compatibility of BSs within the CARR-SA matrix was confirmed by seven characteristic functional groups which were consistently transmitted in the ATR-FTIR spectra. These novel medicated dressing prototypes can potentially help to achieve more rapid wound healing.
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Affiliation(s)
- Olufunke Akiyode
- Department of Pharmaceutical, Chemical and Environmental Sciences, Faculty of Engineering and Science, University of Greenwich, Kent ME4 4TB, UK.
| | - Joshua Boateng
- Department of Pharmaceutical, Chemical and Environmental Sciences, Faculty of Engineering and Science, University of Greenwich, Kent ME4 4TB, UK.
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69
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Singh B, Kumar A. Hydrogel formation by radiation induced crosslinked copolymerization of acrylamide onto moringa gum for use in drug delivery applications. Carbohydr Polym 2018; 200:262-270. [PMID: 30177166 DOI: 10.1016/j.carbpol.2018.08.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/26/2018] [Accepted: 08/05/2018] [Indexed: 11/30/2022]
Abstract
Keeping in view the importance of polysaccharides gum in designing drug delivery systems, the present work is the exploration of the potential of the moringa gum in hydrogel formation via radiation induced crosslinking method for drug delivery applications. These polymers were characterized by cryo-SEM, AFM, FTIR, 13C-NMR spectroscopy and swelling studies. Some properties of the polymers such as blood compatibility, antioxidant activity, mucoadhesion and gel strength were also determined along with the evaluation of drug release profile of an antibiotic drug levofloxacin. The slow release of drug was observed without burst effect from the drug loaded hydrogels. Release of drug occurred through non-Fickian diffusion mechanism and release profile best fitted in Korsmeyer-Peppas kinetic model. Cryo-SEM showed the porous nature of the hydrogels. The polymers were found to be mucoadhesive and antioxidant in nature. These results indicated that these pure and sterile polymers can be proposed as gastrointestinal drug delivery system.
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Affiliation(s)
- Baljit Singh
- Department of Chemistry, Himachal Pradesh University, Shimla, 171005, India.
| | - Ajay Kumar
- Department of Chemistry, Himachal Pradesh University, Shimla, 171005, India
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70
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Üstündağ Okur N, Filippousi M, Okur ME, Ayla Ş, Çağlar EŞ, Yoltaş A, Siafaka PI. A novel approach for skin infections: Controlled release topical mats of poly(lactic acid)/poly(ethylene succinate) blends containing Voriconazole. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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71
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Okur ME, Ayla Ş, Çiçek Polat D, Günal MY, Yoltaş A, Biçeroğlu Ö. Novel insight into wound healing properties of methanol extract of Capparis ovata Desf. var. palaestina Zohary fruits. J Pharm Pharmacol 2018; 70:1401-1413. [DOI: 10.1111/jphp.12977] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 06/15/2018] [Indexed: 12/13/2022]
Abstract
Abstract
Objectives
The objective of this study was to investigate the wound healing activity of Capparis ovata var. palaestina fruit extract in mice. For this aim, wound healing, in vitro antimicrobial and antioxidant activities, HPLC, phenolic and flavonoid compounds analyses were performed.
Methods
The wound healing effect was tested by excisional wound model. Wound closure was measured for 14 days and at 14th day wound healing was assessed by levels of TGF-β, VEGF, COL1A1 and angiogenesis, granulation tissue thickness, epidermal and dermal regeneration. The antioxidant activity was calculated by DPPH and ABTS free radical scavenging assays. Antimicrobial ability was evaluated by minimum inhibitory concentration and agar well diffusion tests.
Key findings
The extract indicated significant antioxidant activity while it also exhibited antimicrobial activity. Rutin was found in the extract according to HPLC study. Moreover, the extract was found to have rich phenolic and flavonoid contents. Histological evaluation showed that extract group induced significant (P < 0.001) wound healing activity compared to control group. Furthermore, extract group increased wound healing rates by promoting granulation tissue, epidermal regeneration, angiogenesis, collagen, TGF-β and VEGF.
Conclusions
The results clarified that the extract possesses antioxidant, antimicrobial activity and thus could provide a valuable contribution to the wound healing.
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Affiliation(s)
- Mehmet Evren Okur
- Faculty of Pharmacy, Department of Pharmacology, Anadolu University, Eskişehir, Turkey
| | - Şule Ayla
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey
| | - Derya Çiçek Polat
- Faculty of Pharmacy, Department of Pharmaceutical Botany, Ankara University, Ankara, Turkey
| | - Mehmet Y Günal
- Faculty of Medicine, Department of Physiology, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Ayşegül Yoltaş
- Faculty of Science, Fundamental and Industrial Microbiology Division, Department of Biology, Ege University, Izmir, Turkey
| | - Özge Biçeroğlu
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
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72
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Simões D, Miguel SP, Ribeiro MP, Coutinho P, Mendonça AG, Correia IJ. Recent advances on antimicrobial wound dressing: A review. Eur J Pharm Biopharm 2018; 127:130-141. [DOI: 10.1016/j.ejpb.2018.02.022] [Citation(s) in RCA: 502] [Impact Index Per Article: 83.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/07/2018] [Accepted: 02/16/2018] [Indexed: 12/15/2022]
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73
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Das D, Pham TTH, Noh I. Characterizations of hyaluronate-based terpolymeric hydrogel synthesized via free radical polymerization mechanism for biomedical applications. Colloids Surf B Biointerfaces 2018; 170:64-75. [PMID: 29879635 DOI: 10.1016/j.colsurfb.2018.05.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/19/2018] [Accepted: 05/26/2018] [Indexed: 02/06/2023]
Abstract
In the present study, a novel terpolymeric hydrogel was developed using sodium hyaluronate (HA), 2-hydroxyethyl acrylate (2-HEA), and poly(ethylene glycol) diacrylate (PEGDA) via free radical polymerization for biomedical applications. To achieve elasticity, swelling ability, porous architecture and sufficient gel strength, hyaluronate was chemically modified by grafting and crosslinking methods using 2-HEA and PEGDA, respectively. The structure and compositions of the fabricated terpolymer (HA-g-p(2-HEA)-x-PEGDA) were verified by FTIR, 1H HR-MAS-NMR, and TGA analyses. The surface morphology and cross-section of the hydrogel was detected by SEM analysis. The gel nature of terpolymer in aqueous medium at 37 °C was confirmed from swelling study, and rheological experiment. Non-cytotoxicity and biocompatibility of the HA-g-p(2-HEA)-x-PEGDA hydrogel were ascertained by in vitro mouse osteoblastic cells (MC3T3) proliferation, and viability studies. Hematoxylin and eosin Y, and Masson's trichrome stainings were performed to show tissue regeneration ability on the prepared hydrogel. In vitro release results of proangiogenic drug-dimethyloxalylglycine (DMOG), and antibiotics-tetracycline (TCN) showed sustained release behaviour from the prepared hydrogel under different pHs at 37 °C. The mathematical models fitted data imply that both DMOG and TCN release follow first order kinetics, while, the release mechanism is primarily controlled by diffusion as well as erosion process. Finally, the novel biocompatible HA-g-p(2-HEA)-x-PEGDA gel, which showed sustained drugs release, and regeneration ability of extracellular matrix and collagen, could be employed in biomedical applications, especially, for the delivery of DMOG/TCN, and in tissue engineering.
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Affiliation(s)
- Dipankar Das
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Thi Thu Hien Pham
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea
| | - Insup Noh
- Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea; Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology, Seoul 01811, Republic of Korea.
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74
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Santos LF, Correia IJ, Silva AS, Mano JF. Biomaterials for drug delivery patches. Eur J Pharm Sci 2018; 118:49-66. [PMID: 29572160 DOI: 10.1016/j.ejps.2018.03.020] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/12/2018] [Accepted: 03/19/2018] [Indexed: 01/22/2023]
Abstract
The limited efficiency of conventional drugs has been instigated the development of new and more effective drug delivery systems (DDS). Transdermal DDS, are associated with numerous advantages such its painless application and less frequent replacement and greater flexibility of dosing, features that triggered the research and development of such devices. Such systems have been produced using either biopolymer; or synthetic polymers. Although the first ones are safer, biocompatible and present a controlled degradation by human enzymes or water, the second ones are the most currently available in the market due to their greater mechanical resistance and flexibility, and non-degradation over time. This review highlights the most recent advances (mainly in the last five years) of patches aimed for transdermal drug delivery, focusing on the different materials (natural, synthetic and blends) and latest designs for the development of such devices, emphasizing also their combination with drug carriers that enable enhanced drug solubility and a more controlled release of the drug over the time. The benefits and limitations of different patches formulations are considered with reference to their appliance to transdermal drug delivery. Furthermore, a record of the currently available patches on the market is given, featuring their most relevant characteristics. Finally, a list of most recent/ongoing clinical trials regarding the use of patches for skin disorders is detailed and critical insights on the current state of patches for transdermal drug delivery are also provided.
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Affiliation(s)
- Lúcia F Santos
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Ilídio J Correia
- CICS UBI, Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde, Universidade da Beira Interior, Av. Infante D Henrique, 6200-506 Covilhã, Portugal.
| | - A Sofia Silva
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - João F Mano
- Department of Chemistry, CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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75
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A novel wound dressing based on a Konjac glucomannan/silver nanoparticle composite sponge effectively kills bacteria and accelerates wound healing. Carbohydr Polym 2018; 183:70-80. [DOI: 10.1016/j.carbpol.2017.11.029] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 11/23/2022]
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76
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Chitosan-based nanosystems and their exploited antimicrobial activity. Eur J Pharm Sci 2018; 117:8-20. [PMID: 29408419 DOI: 10.1016/j.ejps.2018.01.046] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 01/15/2018] [Accepted: 01/31/2018] [Indexed: 02/07/2023]
Abstract
Chitosan is a biodegradable and biocompatible natural polysaccharide that has a wide range of applications in the field of pharmaceutics, biomedical, chemical, cosmetics, textile and food industry. One of the most interesting characteristics of chitosan is its antibacterial and antifungal activity, and together with its excellent safety profile in human, it has attracted considerable attention in various research disciplines. The antimicrobial activity of chitosan is dependent on a number of factors, including its molecular weight, degree of deacetylation, degree of substitution, physical form, as well as structural properties of the cell wall of the target microorganisms. While the sole use of chitosan may not be sufficient to produce an adequate antimicrobial effect to fulfil different purposes, the incorporation of this biopolymer with other active substances such as drugs, metals and natural compounds in nanosystems is a commonly employed strategy to enhance its antimicrobial potential. In this review, we aim to provide an overview on the different approaches that exploit the antimicrobial activity of chitosan-based nanosystems and their applications, and highlight the latest advances in this field.
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77
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Park JU, Song EH, Jeong SH, Song J, Kim HE, Kim S. Chitosan-Based Dressing Materials for Problematic Wound Management. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:527-537. [DOI: 10.1007/978-981-13-0947-2_28] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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78
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Sahariah P, Másson M. Antimicrobial Chitosan and Chitosan Derivatives: A Review of the Structure–Activity Relationship. Biomacromolecules 2017; 18:3846-3868. [DOI: 10.1021/acs.biomac.7b01058] [Citation(s) in RCA: 434] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Priyanka Sahariah
- Faculty
of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Már Másson
- Faculty
of Pharmaceutical Sciences, School of Health Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
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79
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In situ reduction of silver nanoparticles by chitosan-l-glutamic acid/hyaluronic acid: Enhancing antimicrobial and wound-healing activity. Carbohydr Polym 2017; 173:556-565. [DOI: 10.1016/j.carbpol.2017.06.035] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 05/25/2017] [Accepted: 06/08/2017] [Indexed: 11/20/2022]
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80
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Development, Optimization and In Vitro/In Vivo Characterization of Collagen-Dextran Spongious Wound Dressings Loaded with Flufenamic Acid. Molecules 2017; 22:molecules22091552. [PMID: 28914807 PMCID: PMC6151609 DOI: 10.3390/molecules22091552] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 09/13/2017] [Indexed: 01/14/2023] Open
Abstract
The aim of this study was the development and optimization of some topical collagen-dextran sponges with flufenamic acid, designed to be potential dressings for burn wounds healing. The sponges were obtained by lyophilization of hydrogels based on type I fibrillar collagen gel extracted from calf hide, dextran and flufenamic acid, crosslinked and un-crosslinked, and designed according to a 3-factor, 3-level Box-Behnken experimental design. The sponges showed good fluid uptake ability quantified by a high swelling ratio. The flufenamic acid release profiles from sponges presented two stages—burst effect resulting in a rapid inflammation reduction, and gradual delivery ensuring the anti-inflammatory effect over a longer burn healing period. The resistance to enzymatic degradation was monitored through a weight loss parameter. The optimization of the sponge formulations was performed based on an experimental design technique combined with response surface methodology, followed by the Taguchi approach to select those formulations that are the least affected by the noise factors. The treatment of experimentally induced burns on animals with selected sponges accelerated the wound healing process and promoted a faster regeneration of the affected epithelial tissues compared to the control group. The results generated by the complex sponge characterization indicate that these formulations could be successfully used for burn dressing applications.
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81
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Lee EJ, Huh BK, Kim SN, Lee JY, Park CG, Mikos AG, Choy YB. Application of Materials as Medical Devices with Localized Drug Delivery Capabilities for Enhanced Wound Repair. PROGRESS IN MATERIALS SCIENCE 2017; 89:392-410. [PMID: 29129946 PMCID: PMC5679315 DOI: 10.1016/j.pmatsci.2017.06.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
The plentiful assortment of natural and synthetic materials can be leveraged to accommodate diverse wound types, as well as different stages of the healing process. An ideal material is envisioned to promote tissue repair with minimal inconvenience for patients. Traditional materials employed in the clinical setting often invoke secondary complications, such as infection, pain, foreign body reaction, and chronic inflammation. This review surveys the repertoire of surgical sutures, wound dressings, surgical glues, orthopedic fixation devices and bone fillers with drug eluting capabilities. It highlights the various techniques developed to effectively incorporate drugs into the selected material or blend of materials for both soft and hard tissue repair. The mechanical and chemical attributes of the resultant materials are also discussed, along with their biological outcomes in vitro and/or in vivo. Perspectives and challenges regarding future research endeavors are also delineated for next-generation wound repair materials.
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Affiliation(s)
- Esther J. Lee
- Department of Bioengineering, Rice University, MS 142, P.O. Box 1892, Houston, Texas, 77251-1892, USA
| | - Beom Kang Huh
- Interdisciplinary Program for Bioengineering, Seoul National University College of Engineering, Seoul, Republic of Korea
| | - Se Na Kim
- Interdisciplinary Program for Bioengineering, Seoul National University College of Engineering, Seoul, Republic of Korea
| | - Jae Yeon Lee
- Interdisciplinary Program for Bioengineering, Seoul National University College of Engineering, Seoul, Republic of Korea
| | - Chun Gwon Park
- Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul, Republic of Korea
| | - Antonios G. Mikos
- Department of Bioengineering, Rice University, MS 142, P.O. Box 1892, Houston, Texas, 77251-1892, USA
- Department of Chemical and Biomolecular Engineering, Rice University, MS 362, P.O. Box 1892, Houston, Texas, 77251-1892, USA
| | - Young Bin Choy
- Interdisciplinary Program for Bioengineering, Seoul National University College of Engineering, Seoul, Republic of Korea
- Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul, Republic of Korea
- Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Republic of Korea
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82
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Treenate P, Monvisade P. Crosslinker Effects on Properties of Hydroxyethylacryl Chitosan/Sodium Alginate Hydrogel Films. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/masy.201600141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Pitchaya Treenate
- Polymer Synthesis and Functional Materials Research Unit; Department of Chemistry; Faculty of Science; King Mongkut's Institute of Technology Ladkrabang; Bangkok Thailand
| | - Pathavuth Monvisade
- Polymer Synthesis and Functional Materials Research Unit; Department of Chemistry; Faculty of Science; King Mongkut's Institute of Technology Ladkrabang; Bangkok Thailand
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83
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Liu X, Niu Y, Chen KC, Chen S. Rapid hemostatic and mild polyurethane-urea foam wound dressing for promoting wound healing. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 71:289-297. [DOI: 10.1016/j.msec.2016.10.019] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 09/24/2016] [Accepted: 10/14/2016] [Indexed: 10/20/2022]
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84
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Pang Q, Zheng X, Luo Y, Ma L, Gao C. A photo-cleavable polyprodrug-loaded wound dressing with UV-responsive antibacterial property. J Mater Chem B 2017; 5:8975-8982. [DOI: 10.1039/c7tb01696d] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A wound dressing with UV-responsive antibacterial property was prepared by loading a photo-cleavable polyprodrug (LHP) into poly(vinyl alcohol)/sodium alginate (PVA/SA) wound dressing to overcome the overuse of antibiotics.
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Affiliation(s)
- Qian Pang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaowen Zheng
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Yu Luo
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Lie Ma
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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85
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Huang X, Bao X, Wang Z, Hu Q. A novel silver-loaded chitosan composite sponge with sustained silver release as a long-lasting antimicrobial dressing. RSC Adv 2017. [DOI: 10.1039/c7ra06430f] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
A new kind of chitosan-based sponge with sustained silver release was prepared by loading CCS-AgNPs into chitosan matrix through interaction between catechol and chitosan, which is considered as a potential candidate for wound healing dressings.
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Affiliation(s)
- Xiaofei Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Xiaojiong Bao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Zhengke Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Qiaoling Hu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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86
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Montaser A, Abdel-Mohsen A, Ramadan M, Sleem A, Sahffie N, Jancar J, Hebeish A. Preparation and characterization of alginate/silver/nicotinamide nanocomposites for treating diabetic wounds. Int J Biol Macromol 2016; 92:739-747. [DOI: 10.1016/j.ijbiomac.2016.07.050] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 07/07/2016] [Accepted: 07/14/2016] [Indexed: 12/20/2022]
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87
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Elviri L, Bianchera A, Bergonzi C, Bettini R. Controlled local drug delivery strategies from chitosan hydrogels for wound healing. Expert Opin Drug Deliv 2016; 14:897-908. [PMID: 27732106 DOI: 10.1080/17425247.2017.1247803] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
INTRODUCTION The main target of tissue engineering is the preparation and application of adequate materials for the design and production of scaffolds, that possess properties promoting cell adhesion, proliferation and differentiation. The use of natural polysaccharides, such as chitosan, to prepare hydrogels for wound healing and controlled drug delivery is a research topic of wide and increasing interest. Areas covered: This review presents the latest results and challenges in the preparation of chitosan and chitosan-based scaffold/hydrogel for wound healing applications. A detailed overview of their behavior in terms of controlled drug delivery, divided by drug categories, and efficacy was provided and critically discussed. Expert opinion: The need to establish and exploit the advantages of natural biomaterials in combination with active compounds is playing a pivotal role in the regenerative medicine fields. The challenges posed by the many variables affecting tissue repair and regeneration need to be standardized and adhere to recognized guidelines to improve the quality of evidence in the wound healing process. Currently, different methodologies are followed to prepare innovative scaffold formulations and structures. Innovative technologies such as 3D printing or bio-electrospray are promising to create chitosan-based scaffolds with finely controlled structures with customizable shape porosity and thickness. Chitosan scaffolds could be designed in combination with a variety of polysaccharides or active compounds with selected and reproducible spacial distribution, providing active wound dressing with highly tunable controlled drug delivery.
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Affiliation(s)
- Lisa Elviri
- a Department of Pharmacy , University of Parma , Parma , Italy
| | - Annalisa Bianchera
- b Interdepartmental Centre Biopharmanet-Tec , University of Parma , Parma , Italy
| | - Carlo Bergonzi
- b Interdepartmental Centre Biopharmanet-Tec , University of Parma , Parma , Italy
| | - Ruggero Bettini
- a Department of Pharmacy , University of Parma , Parma , Italy
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88
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Siafaka PI, Mone M, Koliakou IG, Kyzas GZ, Bikiaris DN. Synthesis and physicochemical properties of a new biocompatible chitosan grafted with 5-hydroxymethylfurfural. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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89
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Vilangattu Parambu Kunjikuttan R, Jayasree A, Biswas R, Jayakumar R. Recent developments in drug-eluting dressings for the treatment of chronic wounds. Expert Opin Drug Deliv 2016; 13:1645-1647. [PMID: 27650305 DOI: 10.1080/17425247.2016.1238456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Rajan Vilangattu Parambu Kunjikuttan
- a Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham , Amrita University , Kochi , India
| | - Anjana Jayasree
- a Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham , Amrita University , Kochi , India
| | - Raja Biswas
- a Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham , Amrita University , Kochi , India
| | - R Jayakumar
- a Amrita Centre for Nanosciences and Molecular Medicine, Amrita Institute of Medical Sciences and Research Centre, Amrita Vishwa Vidyapeetham , Amrita University , Kochi , India
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90
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Siafaka PI, Üstündağ Okur N, Karavas E, Bikiaris DN. Surface Modified Multifunctional and Stimuli Responsive Nanoparticles for Drug Targeting: Current Status and Uses. Int J Mol Sci 2016; 17:E1440. [PMID: 27589733 PMCID: PMC5037719 DOI: 10.3390/ijms17091440] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 08/09/2016] [Accepted: 08/19/2016] [Indexed: 02/07/2023] Open
Abstract
Nanocarriers, due to their unique features, are of increased interest among researchers working with pharmaceutical formulations. Polymeric nanoparticles and nanocapsules, involving non-toxic biodegradable polymers, liposomes, solid lipid nanoparticles, and inorganic-organic nanomaterials, are among the most used carriers for drugs for a broad spectrum of targeted diseases. In fact, oral, injectable, transdermal-dermal and ocular formulations mainly consist of the aforementioned nanomaterials demonstrating promising characteristics such as long circulation, specific targeting, high drug loading capacity, enhanced intracellular penetration, and so on. Over the last decade, huge advances in the development of novel, safer and less toxic nanocarriers with amended properties have been made. In addition, multifunctional nanocarriers combining chemical substances, vitamins and peptides via coupling chemistry, inorganic particles coated by biocompatible materials seem to play a key role considering that functionalization can enhance characteristics such as biocompatibility, targetability, environmental friendliness, and intracellular penetration while also have limited side effects. This review aims to summarize the "state of the art" of drug delivery carriers in nanosize, paying attention to their surface functionalization with ligands and other small or polymeric compounds so as to upgrade active and passive targeting, different release patterns as well as cell targeting and stimuli responsibility. Lastly, future aspects and potential uses of nanoparticulated drug systems are outlined.
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Affiliation(s)
- Panoraia I Siafaka
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Macedonia, Greece.
| | - Neslihan Üstündağ Okur
- Department of Pharmaceutical Technology, School of Pharmacy, Istanbul Medipol University, Beykoz 34810, Istanbul, Turkey.
| | | | - Dimitrios N Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Macedonia, Greece.
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91
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Xiao Y, Ahadian S, Radisic M. Biochemical and Biophysical Cues in Matrix Design for Chronic and Diabetic Wound Treatment. TISSUE ENGINEERING PART B-REVIEWS 2016; 23:9-26. [PMID: 27405960 DOI: 10.1089/ten.teb.2016.0200] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Progress in biomaterial science and engineering and increasing knowledge in cell biology have enabled us to develop functional biomaterials providing appropriate biochemical and biophysical cues for tissue regeneration applications. Tissue regeneration is particularly important to treat chronic wounds of people with diabetes. Understanding and controlling the cellular microenvironment of the wound tissue are important to improve the wound healing process. In this study, we review different biochemical (e.g., growth factors, peptides, DNA, and RNA) and biophysical (e.g., topographical guidance, pressure, electrical stimulation, and pulsed electromagnetic field) cues providing a functional and instructive acellular matrix to heal diabetic chronic wounds. The biochemical and biophysical signals generally regulate cell-matrix interactions and cell behavior and function inducing the tissue regeneration for chronic wounds. Some technologies and devices have already been developed and used in the clinic employing biochemical and biophysical cues for wound healing applications. These technologies can be integrated with smart biomaterials to deliver therapeutic agents to the wound tissue in a precise and controllable manner. This review provides useful guidance in understanding molecular mechanisms and signals in the healing of diabetic chronic wounds and in designing instructive biomaterials to treat them.
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Affiliation(s)
- Yun Xiao
- 1 Department of Chemical Engineering and Applied Chemistry, University of Toronto , Toronto, Ontario, Canada .,2 Institute of Biomaterials and Biomedical Engineering, University of Toronto , Toronto, Ontario, Canada
| | - Samad Ahadian
- 2 Institute of Biomaterials and Biomedical Engineering, University of Toronto , Toronto, Ontario, Canada
| | - Milica Radisic
- 1 Department of Chemical Engineering and Applied Chemistry, University of Toronto , Toronto, Ontario, Canada .,2 Institute of Biomaterials and Biomedical Engineering, University of Toronto , Toronto, Ontario, Canada
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