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Rani P, Pahwa R, Verma V, Bhatia M. Preparation, characterization, and evaluation of ketoconazole-loaded pineapple cellulose green nanofiber gel. Int J Biol Macromol 2024; 262:130221. [PMID: 38365159 DOI: 10.1016/j.ijbiomac.2024.130221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 02/04/2024] [Accepted: 02/13/2024] [Indexed: 02/18/2024]
Abstract
The present study involves the isolation of cellulose nanofibers from pineapple crown waste by a combined alkali-acid treatment method. The extracted pineapple nanofibers were characterized by Fourier-transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, nuclear magnetic resonance, high-resolution transmission electron microscopy, and dynamic light scattering. The extracted pineapple nanofibers were then incorporated in Carbopol 934P containing ketoconazole to prepare a ketoconazole-loaded pineapple nanofibrous gel. The prepared gel formulation was evaluated for viscosity, spreadability, extrudibility, pH, drug content, and texture profile analysis. The anticipated gel formulation was further evaluated by in vitro drug release (98.57 ± 0.58 %), ex vivo drug permeation, cytotoxicity, and histopathological studies. The permeation of the drug through skin determined by the ex-vivo diffusion study was found to be 38.27 % with a flux rate of 4.06 ± 0.26 μg/cm2/h. Further, the cytotoxicity study of pineapple nanofiber and ketoconazole-loaded nanofiber gel displayed no cytotoxic on healthy vero cells in the concentration range from 10 to 80 μg/ml. The histopathological analysis exhibited no signs of distress and inflammation. In conclusion, ketoconazole-loaded pineapple nanofiber gel could be considered as a promising delivery system for topical applications.
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Affiliation(s)
- Pooja Rani
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, (Haryana), India
| | - Rimpy Pahwa
- Amity Institute of Pharmacy, Amity University, Noida-201303, (Uttar Pradesh), India
| | - Vikas Verma
- Department of Chemistry, Guru Jambheshwar University of Science and Technology, Hisar-125001, (Haryana), India
| | - Meenakshi Bhatia
- Department of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar-125001, (Haryana), India.
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Ahmed A, Getti G, Boateng J. Medicated multi-targeted alginate-based dressings for potential treatment of mixed bacterial-fungal infections in diabetic foot ulcers. Int J Pharm 2021; 606:120903. [PMID: 34293470 DOI: 10.1016/j.ijpharm.2021.120903] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/14/2021] [Accepted: 07/16/2021] [Indexed: 01/13/2023]
Abstract
Recently developed medicated dressings target either bacterial or fungal infection only, which is not effective for the treatment of mixed infections common in diabetic foot ulcers (DFUs). This study aimed to develop advanced bioactive alginate-based dressings (films and wafers) to deliver therapeutically relevant doses of ciprofloxacin (CIP) and fluconazole (FLU) to target mixed bacterial and fungal infections in DFUs. The alginate compatibility with the drugs was confirmed by SEM, XRD, FTIR and texture analysis, while the medicated wafers showed better fluid handling properties than the films in the presence of simulated wound fluid. The dressings showed initial fast release of FLU followed by sustained release of CIP which completely eradicated E. coli, S. aureus, P. aeruginosa and reduced fungal load (C. albicans) by 10-fold within 24 h. Moreover, the medicated dressings were biocompatible (>70% cell viability over 72 h) with human primary adult keratinocytes and in-vitro scratch assay showed 65-68% wound closure within 7 days.
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Affiliation(s)
- Asif Ahmed
- School of Science, Faculty of Engineering and Science, University of Greenwich, Medway, Central Ave., Chatham Maritime, Kent ME4 4TB, UK
| | - Giulia Getti
- School of Science, Faculty of Engineering and Science, University of Greenwich, Medway, Central Ave., Chatham Maritime, Kent ME4 4TB, UK
| | - Joshua Boateng
- School of Science, Faculty of Engineering and Science, University of Greenwich, Medway, Central Ave., Chatham Maritime, Kent ME4 4TB, UK.
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Saleh N, Elshaer S, Girgis G. Biodegradable polymers-based nanoparticles to enhance the antifungal efficacy of fluconazole against Candida albicans. Curr Pharm Biotechnol 2021; 23:749-757. [PMID: 34238149 DOI: 10.2174/1389201022666210708105142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/26/2021] [Accepted: 05/04/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Fluconazole (FLZ), a potent antifungal medication, is characterized by poor water solubility that reduced its antifungal efficacy. OBJECTIVE This study aimed to prepare FLZ-loaded polymeric nanoparticles (NPs) by using different polymers and techniques as a mean of enhancing the antifungal activity of FLZ. METHODS NP1, NP2, and NP3 were prepared by the double emulsion/solvent evaporation method using PLGA, PCL, and PLA, respectively. The ionotropic pre-gelation technique was applied to prepare an alginate/chitosan-based formulation (NP4). Particle size, zeta potential, encapsulation efficiency, and loading capacity were characterized. FT-IR spectra of FLZ, the polymers, and the prepared NPs were estimated. NP4 was selected for further in-vitro release evaluation. The broth dilution method was used to assess the antifungal activity of NP4 using a resistant clinical isolate of Candida albicans. RESULTS The double emulsion method produced smaller-sized particles (<390 nm) but with much lower encapsulation efficiency (< 12%). Alternatively, the ionic gelation method resulted in nanosized particles with a markedly higher encapsulation efficiency of about 40%. The FT-IR spectroscopy confirmed the loading of the FLZ molecules in the polymeric network of the prepared NPs. The release profile of NP4 showed a burst initial release followed by a controlled pattern up to 24 hours with a higher percent released relative to the free FLZ suspension. NP4 was able to reduce the value of MIC of FLZ by 20 times. CONCLUSION The antifungal activity of FLZ against C. albicans was enhanced markedly via its loading in the alginate/chitosan-based polymeric matrix of NP4.
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Affiliation(s)
- Noha Saleh
- Pharmaceutics Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Soha Elshaer
- Department of Microbiology and Immunology, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
| | - Germeen Girgis
- Pharmaceutics Department, Faculty of Pharmacy, Mansoura University, Mansoura, Egypt
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Mustfa SA, Maurizi E, McGrath J, Chiappini C. Nanomedicine Approaches to Negotiate Local Biobarriers for Topical Drug Delivery. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202000160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Salman Ahmad Mustfa
- Centre for Craniofacial and Regenerative Biology King's College London London SE1 9RT UK
| | - Eleonora Maurizi
- Dipartimento di Medicina e Chirurgia Università di Parma Parma 43121 Italy
| | - John McGrath
- St John's Institute of Dermatology King's College London London SE1 9RT UK
| | - Ciro Chiappini
- Centre for Craniofacial and Regenerative Biology King's College London London SE1 9RT UK
- London Centre for Nanotechnology King's College London London WC2R 2LS UK
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Fathi HA, Abdelkader A, AbdelKarim MS, Abdelaziz AA, El-Mokhtar MA, Allam A, Fetih G, El Badry M, Elsabahy M. Electrospun vancomycin-loaded nanofibers for management of methicillin-resistant Staphylococcus aureus-induced skin infections. Int J Pharm 2020; 586:119620. [PMID: 32652179 DOI: 10.1016/j.ijpharm.2020.119620] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 12/12/2022]
Abstract
Skin damage exposes the underlying layers to bacterial invasion, leading to skin and soft tissue infections. Several pathogens have developed resistance against conventional topical antimicrobial treatments and rendered them less effective. Recently, several nanomedical strategies have emerged as a potential approach to improve therapeutic outcomes of treating bacterial skin infections. In the current study, nanofibers were utilized for topical delivery of the antimicrobial drug vancomycin and evaluated as a promising tool for treatment of topical skin infections. Vancomycin-loaded nanofibers were prepared via electrospinning technique, and vancomycin-loaded nanofibers of the optimal composition exhibited nanosized uniform smooth fibers (ca. 200 nm diameter), high drug entrapment efficiency and sustained drug release patterns over 48 h. In vitro cytotoxicity assays, using several cell lines, revealed the biocompatibility of the drug-loaded nanofibers. In vitro antibacterial studies showed sustained antibacterial activity of the vancomycin-loaded nanofibers against methicillin-resistant Staphylococcus aureus (MRSA), in comparison to the free drug. The nanofibers were then tested in animal model of superficial MRSA skin infection and demonstrated a superior antibacterial efficiency, as compared to animals treated with the free vancomycin solution. Hence, nanofibers might provide an efficient nanodevice to overcome MRSA-induced skin infections and a promising topical delivery vehicle for antimicrobial drugs.
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Affiliation(s)
- Heba A Fathi
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt
| | - Ayat Abdelkader
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt
| | - Mahmoud S AbdelKarim
- Department of Mechanical Engineering, Faculty of Engineering, Assiut University, Assiut 71515, Egypt
| | - Ayman A Abdelaziz
- Department of Physics, Faculty of Science, Assiut University, Assiut 71515, Egypt
| | - Mohamed A El-Mokhtar
- Department of Microbiology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Ayat Allam
- Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt
| | - Gihan Fetih
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt
| | - Mahmoud El Badry
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt
| | - Mahmoud Elsabahy
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut 71515, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Assiut University, Assiut 71515, Egypt; Science Academy, Badr University in Cairo (BUC), Badr City, Cairo 11829, Egypt.
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Esentürk İ, Balkan T, Güngör S, Saraç S, Erdal MS. Preparation and characterization of naftifine-loaded poly(vinyl alcohol)/sodium alginate electrospun nanofibers. BRAZ J PHARM SCI 2020. [DOI: 10.1590/s2175-97902019000318440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- İmren Esentürk
- Istanbul University, Turkey; University of Health Sciences Turkey, Turkey
| | - Timuçin Balkan
- Istanbul Technical University, Turkey; Istanbul Technical University, Turkey; Koc University, Turkey
| | | | - Sezai Saraç
- Istanbul Technical University, Turkey; Istanbul Technical University, Turkey
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Dual effective core-shell electrospun scaffolds: Promoting osteoblast maturation and reducing bacteria activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 103:109778. [DOI: 10.1016/j.msec.2019.109778] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Revised: 11/14/2018] [Accepted: 05/19/2019] [Indexed: 01/05/2023]
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Triiodothyronine impregnated alginate/gelatin/polyvinyl alcohol composite scaffold designed for exudate-intensive wound therapy. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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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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Kamble P, Sadarani B, Majumdar A, Bhullar S. Nanofiber based drug delivery systems for skin: A promising therapeutic approach. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.07.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Salles GN, Pereira FADS, Pacheco-Soares C, Marciano FR, Hölscher C, Webster TJ, Lobo AO. A Novel Bioresorbable Device as a Controlled Release System for Protecting Cells from Oxidative Stress from Alzheimer’s Disease. Mol Neurobiol 2016; 54:6827-6838. [DOI: 10.1007/s12035-016-0200-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/11/2016] [Indexed: 12/15/2022]
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Quirós J, Gonzalo S, Jalvo B, Boltes K, Perdigón-Melón JA, Rosal R. Electrospun cellulose acetate composites containing supported metal nanoparticles for antifungal membranes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 563-564:912-920. [PMID: 26524992 DOI: 10.1016/j.scitotenv.2015.10.072] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/10/2015] [Accepted: 10/13/2015] [Indexed: 06/05/2023]
Abstract
Electrospun cellulose acetate composites containing silver and copper nanoparticles supported in sepiolite and mesoporous silica were prepared and tested as fungistatic membranes against the fungus Aspergillus niger. The nanoparticles were in the 3-50nm range for sepiolite supported materials and limited by the size of mesopores (5-8nm) in the case of mesoporous silica. Sepiolite and silica were well dispersed within the fibers, with larger aggregates in the micrometer range, and allowed a controlled release of metals to create a fungistatic environment. The effect was assessed using digital image analysis to evaluate fungal growth rate and fluorescence readings using a viability stain. The results showed that silver and copper nanomaterials significantly impaired the growth of fungi when the spores were incubated either in direct contact with particles or included in cellulose acetate composite membranes. The fungistatic effect took place on germinating spores before hyphae growth conidiophore formation. After 24h the cultures were separated from fungistatic materials and showed growth impairment only due to the prior exposure. Growth reduction was important for all the particles and membranes with respect to non-exposed controls. The effect of copper and silver loaded materials was not significantly different from each other with average reductions around 70% for bare particles and 50% for membranes. Copper on sepiolite was particularly efficient with a decrease of metabolic activity of up to 80% with respect to controls. Copper materials induced rapid maturation and conidiation with fungi splitting in sets of subcolonies. Metal-loaded nanomaterials acted as reservoirs for the controlled release of metals. The amount of silver or copper released daily by composite membranes represented roughly 1% of their total load of metals. Supported nanomaterials encapsulated in nanofibers allow formulating active membranes with high antifungal performance at the same time minimizing the risk of nanoparticle release into the environment.
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Affiliation(s)
- Jennifer Quirós
- Department of Chemical Engineering, University of Alcalá, Alcalá de Henares, Madrid 28871, Spain
| | - Soledad Gonzalo
- Department of Chemical Engineering, University of Alcalá, Alcalá de Henares, Madrid 28871, Spain
| | - Blanca Jalvo
- Department of Chemical Engineering, University of Alcalá, Alcalá de Henares, Madrid 28871, Spain
| | - Karina Boltes
- Department of Chemical Engineering, University of Alcalá, Alcalá de Henares, Madrid 28871, Spain; Madrid Institute for Advanced Studies of Water (IMDEA Agua), Parque Científico Tecnológico, Alcalá de Henares, Madrid E-28805, Spain
| | | | - Roberto Rosal
- Department of Chemical Engineering, University of Alcalá, Alcalá de Henares, Madrid 28871, Spain; Madrid Institute for Advanced Studies of Water (IMDEA Agua), Parque Científico Tecnológico, Alcalá de Henares, Madrid E-28805, Spain.
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