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Ferreira JO, Zambuzi GC, Camargos CHM, Carvalho ACW, Ferreira MP, Rezende CA, de Freitas O, Francisco KR. Zein and hydroxypropyl methylcellulose acetate succinate microfibers combined with metronidazole benzoate and/or metronidazole-incorporated cellulose nanofibrils for potential periodontal treatment. Int J Biol Macromol 2024; 261:129701. [PMID: 38280709 DOI: 10.1016/j.ijbiomac.2024.129701] [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: 07/05/2023] [Revised: 01/13/2024] [Accepted: 01/22/2024] [Indexed: 01/29/2024]
Abstract
The development of flexible and porous materials to control antibacterial delivery is a pivotal endeavor in medical science. In this study, we aimed to produce long and defect-free fibers made of zein and hydroxypropyl methylcellulose acetate succinate (HPMCAS) to be used as a platform for the release of metronidazole (MDZ) and metronidazole benzoate (BMDZ) to be potentially used in periodontal treatment. Microfibers prepared via electrospinning under a 2:3 (w/w) zein to HPMCAS ratio, containing 0.5 % (w/w) poly(ethylene oxide) (PEO) and 1 % (w/w) cellulose nanofibril (CNF) were loaded with 40 % (w/w) MDZ, 40 % (w/w) BMDZ, or a combination of 20 % (w/w) of each drug. The addition of CNF improved the electrospinning process, resulting in long fibers with reduced MDZ and BMDZ surface crystallization. MDZ- and BMDZ-incorporated fibers were semicrystalline and displayed commendable compatibility among drugs, nanocellulose and polymeric chains. Release tests showed that zein/HPMCAS/PEO fibers without CNF and with 20 % (w/w) MDZ/ 20 % (w/w) BMDZ released the drug at a slower and more sustained rate compared to other samples over extended periods (up to 5 days), which is a favorable aspect concerning periodontitis treatment.
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Affiliation(s)
- João O Ferreira
- Science and Technology Center for Sustainability, Federal University of São Carlos, Rod. SP-264, km 110, Sorocaba 18052-780, SP, Brazil
| | - Giovana C Zambuzi
- Science and Technology Center for Sustainability, Federal University of São Carlos, Rod. SP-264, km 110, Sorocaba 18052-780, SP, Brazil
| | - Camilla H M Camargos
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas, 13083-970 Campinas, SP, Brazil; School of Fine Arts, Federal University of Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - Ana C W Carvalho
- Department of Pharmaceutical Sciences, Faculty of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-903, SP, Brazil
| | - Maíra P Ferreira
- Department of Pharmaceutical Sciences, Faculty of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-903, SP, Brazil
| | - Camila A Rezende
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas, 13083-970 Campinas, SP, Brazil
| | - Osvaldo de Freitas
- Department of Pharmaceutical Sciences, Faculty of Pharmaceuticals Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 14040-903, SP, Brazil
| | - Kelly R Francisco
- Science and Technology Center for Sustainability, Federal University of São Carlos, Rod. SP-264, km 110, Sorocaba 18052-780, SP, Brazil; Department of Natural Science, Mathematics and Education, Federal University of São Carlos-UFSCar, Araras 13604-900, SP, Brazil.
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2
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Pattnaik S, Swain K, Ramakrishna S. Optimal delivery of poorly soluble drugs using electrospun nanofiber technology: Challenges, state of the art, and future directions. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1859. [PMID: 36193733 DOI: 10.1002/wnan.1859] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/11/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022]
Abstract
Poor aqueous solubility of both, existing drug molecules and those which are currently in the developmental stage, have posed a great challenge to pharmaceutical scientists because they often exhibit poor dissolution behavior and subsequent poor and erratic bioavailability. This has triggered extensive research to explore nanotechnology-based technology platforms for possible rescue. Recently, nanofibers have been exploited widely for diverse biomedical applications including for drug delivery. Electrospun nanofibers are capable of preserving the homogeneously loaded therapeutic agents in amorphous state potentialy impairing devitrification. The present review aims at providing an overview of the various key factors that affect the electrospinning process and characteristics of the nanofibers while fabrication of drug loaded nanofibers for poorly soluble drug candidates. The review explores various methodological advancements in the electrospinning process and set-ups for production scale-up. The various types of electrospun nanofibers (like simple matrix, core-sheath, Janus, and inclusion complex nanofibers) that have been exploited for the delivery of poorly soluble drugs are also critically assessed. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
- Satyanarayan Pattnaik
- Division of Advanced Drug Delivery, Talla Padmavathi College of Pharmacy, Warangal, India
| | - Kalpana Swain
- Division of Advanced Drug Delivery, Talla Padmavathi College of Pharmacy, Warangal, India
| | - Seeram Ramakrishna
- NUS Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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3
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López de Dicastillo C, Velásquez E, Rojas A, Garrido L, Moreno MC, Guarda A, Galotto MJ. Developing Core/Shell Capsules Based on Hydroxypropyl Methylcellulose and Gelatin through Electrodynamic Atomization for Betalain Encapsulation. Polymers (Basel) 2023; 15:polym15020361. [PMID: 36679242 PMCID: PMC9866801 DOI: 10.3390/polym15020361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/30/2022] [Accepted: 01/01/2023] [Indexed: 01/13/2023] Open
Abstract
Betalains are bioactive compounds with remarkable functional and nutritional activities for health and food preservation and attractiveness. Nevertheless, they are highly sensitive to external factors, such as oxygen presence, light, and high temperatures. Therefore, the search for new structures, polymeric matrices, and efficient methods of encapsulation of these compounds is of great interest to increase their addition to food products. In this work, betalains were extracted from red beetroot. Betacyanin and betaxanthin contents were quantified. Subsequently, these compounds were successfully encapsulated into the core of coaxial electrosprayed capsules composed of hydroxypropyl methylcellulose (HPMC) and gelatin (G). The effect of incorporating the carbohydrate and the protein both in the core or shell structures was studied to elucidate the best composition for betalain protection. Morphological, optical, and structural properties were analyzed to understand the effect of the incorporation of the bioactive compounds in the morphology, color, and chemical interactions between components of resulting electrosprayed capsules. The results of the thermogravimetric and encapsulation efficiency analysis coincided that the incorporation of beetroot extract in G in the core and HPMC in the shell resulted in the structure with greater betalain protection. The effectiveness of the core/shell structure was confirmed for future food applications.
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Affiliation(s)
- Carol López de Dicastillo
- Packaging Laboratory, Institute of Agrochemistry and Food Technology (IATA-CSIC), Av. Agustín Escardino 7, 46980 Paterna, Spain
| | - Eliezer Velásquez
- Packaging Innovation Center (LABEN), Department of Food Science and Technology, Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, Chile
- CEDENNA (Center for the Development of Nanoscience and Nanotechnology), Santiago 9170124, Chile
| | - Adrián Rojas
- Packaging Innovation Center (LABEN), Department of Food Science and Technology, Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, Chile
- CEDENNA (Center for the Development of Nanoscience and Nanotechnology), Santiago 9170124, Chile
| | - Luan Garrido
- Packaging Innovation Center (LABEN), Department of Food Science and Technology, Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, Chile
- CEDENNA (Center for the Development of Nanoscience and Nanotechnology), Santiago 9170124, Chile
| | - María Carolina Moreno
- Department of Chemical and Bioprocess Engineering, Faculty of Engineering, Pontificia Universidad Católica de Chile, Macul 6904411, Chile
| | - Abel Guarda
- Packaging Innovation Center (LABEN), Department of Food Science and Technology, Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, Chile
- CEDENNA (Center for the Development of Nanoscience and Nanotechnology), Santiago 9170124, Chile
| | - María José Galotto
- Packaging Innovation Center (LABEN), Department of Food Science and Technology, Technology Faculty, University of Santiago de Chile (USACH), Santiago 9170201, Chile
- CEDENNA (Center for the Development of Nanoscience and Nanotechnology), Santiago 9170124, Chile
- Correspondence:
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4
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Brake S, Gomez-Maldonado D, Hummel M, Zohdy S, Peresin MS. Understanding the current state-of-the-art of long-lasting insecticide nets and potential for sustainable alternatives. CURRENT RESEARCH IN PARASITOLOGY & VECTOR-BORNE DISEASES 2022; 2:100101. [PMID: 36248356 PMCID: PMC9562956 DOI: 10.1016/j.crpvbd.2022.100101] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/23/2022]
Abstract
Long-lasting insecticide-treated nets (LLINs) are widely distributed to communities where malaria is a major cause of mortality, especially to those under the age of 5 years-old. To protect people from this illness, LLINs provide physical and chemical barriers by containing insecticides within the matrix of the polymer fibers or on the surface. Synthetic polymers including polyethylene and polyester are common material choices for these nets, and pyrethroids, along with other additives, are the insecticides of choice for this application. Many studies have shown the effectiveness of these nets on the impact of malaria is highly significant, but there is a demand for more durable nets that last longer than only a few years as the available products are rated for 2–3 years of use. Improvements in this area would increase cost effectiveness, because better durability would reduce the frequency of manufacturing and worldwide shipping. Additionally, due to the plastic fibers, the waste can build quickly, damaging the environment. To deal with the sustainability and durability issues, biodegradable and renewable materials should be chosen as an alternative. LLINs are important for malaria control, but they require a sustainable and durable alternative to synthetic polymers. LLINs are made by extrusion of pyrethroids and synthetic polymers or by coating. The current LLINs include important active ingredients to improve insecticidal activity. Bio-based polymers have the potential to be used to develop a superior LLIN to those available currently.
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Luo S, Yu L, Song J, Wu C, Li Y, Zhang C. Hybridization of glucosyl stevioside and hydroxypropyl methylcellulose to improve the solubility of lutein. Food Chem 2022; 394:133490. [PMID: 35717918 DOI: 10.1016/j.foodchem.2022.133490] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 05/09/2022] [Accepted: 06/13/2022] [Indexed: 11/04/2022]
Abstract
In this paper, a lutein-glucosyl stevioside (stevia-G)-hydroxypropyl methylcellulose (HPMC) complex was prepared via an antisolvent precipitation combined with dynamic high pressure microfluidization method. The solubility, microstructure, crystallinity and thermodynamic properties of the freeze-dried powder were investigated, as well as the formation mechanism and the storage stability of the produced complex. When the optimal mass ratio of lutein, stevia-G, and HPMC was 1: 40: 0.5, the apparent solubility of lutein reached 2805.47 ± 24.94 μg·mL-1, which was approximately 5600 times higher than that of lutein crystals. The lutein-stevia-G-HPMC complex formed an amorphous dispersed structure and was in a thermodynamically high energy state. The self-assembled micelle structure of stevia-G and HPMC polymer created a supersaturated system mainly by multiple hydrogen bonding, which promoted maximum lutein dissolving, delayed supersaturated crystallization process, and hindered precipitation. The present results suggested the complex formed by stevia-G and HPMC effectively promote lutein's hydrophilicity and stability.
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Affiliation(s)
- Shuwei Luo
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Lijun Yu
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jiangfeng Song
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China; Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Caie Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ying Li
- Institute of Agro-product Processing, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Chenchen Zhang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China
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Fan Y, Li T, Ge W, Lou C, Lin J. Flexible
Micro‐Nano
Composite Membranes Based on a
Two‐Step
Strategy: Charge Recovery and Efficiently Gradient Air Filtration. POLYM INT 2022. [DOI: 10.1002/pi.6410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yujia Fan
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin 300387 China
| | - Ting‐Ting Li
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin 300387 China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin 300387 China
| | - Wankai Ge
- School of Mechanical Engineering Tiangong University Tianjin 300387 China
| | - ChingWen Lou
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin 300387 China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin 300387 China
- Department of Bioinformatics and Medical Engineering Asia University Taichung 41354 Taiwan
- Department of Medical Research, China Medical University Hospital China Medical University Taichung 40402 Taiwan
| | - Jia‐Horng Lin
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and Engineering Tiangong University Tianjin 300387 China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials Tiangong University Tianjin 300387 China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials Feng Chia University Taichung 40724 Taiwan
- School of Chinese Medicine China Medical University Taichung 40402 Taiwan
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7
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Mirmazloum I, Ladányi M, Omran M, Papp V, Ronkainen VP, Pónya Z, Papp I, Némedi E, Kiss A. Co-encapsulation of probiotic Lactobacillus acidophilus and Reishi medicinal mushroom (Ganoderma lingzhi) extract in moist calcium alginate beads. Int J Biol Macromol 2021; 192:461-470. [PMID: 34600952 DOI: 10.1016/j.ijbiomac.2021.09.177] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 09/03/2021] [Accepted: 09/25/2021] [Indexed: 10/20/2022]
Abstract
Probiotic L. acidophilus La-14 cells were co-encapsulated with Ganoderma lingzhi extract to prolong the viability of the cells under simulated gastrointestinal (SGI) condition and to protect the active ingredients of Reishi mushroom during the storage period. Combinations of distinctive reagents (sodium alginate, chitosan, maltose, Hydroxyethyl-cellulose (HEC), hydroxypropyl methylcellulose (HPMC), and calcium lactate) were tested. Optimal double layer Ca-alginate hydrogel beads were fabricated with significantly improved characteristics. The incorporation of maltose significantly decreases the release rate of mushrooms' phenolics, antioxidants, and β-glucan during the storage time. Significant improvement in probiotic cells viability under SGI condition has been found and confirmed by confocal laser microscopy in maltose containing double layer coated calcium alginate beads variants. The encapsulation of newly formulated prebiotic Reishi extract and probiotic L. acidophilus is creating a new potential food application for such medicinal mushrooms and natural products with unpleasant taste upon oral consumption.
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Affiliation(s)
- Iman Mirmazloum
- Department of Plant Physiology and Plant Ecology, Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary.
| | - Márta Ladányi
- Department of Applied Statistics, Institute of Mathematics and Basic Science, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Mohammad Omran
- Department of Plant Physiology and Plant Ecology, Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | - Viktor Papp
- Department of Botany, Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | | | - Zsolt Pónya
- Division of Applied Food Crop Production, Department of Agronomy, Institute of Agronomy, Kaposvár Campus, Hungarian University of Agricultural and Life Sciences, Kaposvár, Hungary
| | - István Papp
- Department of Plant Physiology and Plant Ecology, Institute of Agronomy, Hungarian University of Agriculture and Life Sciences, Budapest, Hungary
| | | | - Attila Kiss
- Agro-Food Science Techtransfer and Innovation Centre, Faculty for Agro-, Food- and Environmental Science, Debrecen University, Debrecen, Hungary
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Yaqoubi S, Adibkia K, Nokhodchi A, Emami S, Alizadeh AA, Hamishehkar H, Barzegar-Jalali M. Co-electrospraying technology as a novel approach for dry powder inhalation formulation of montelukast and budesonide for pulmonary co-delivery. Int J Pharm 2020; 591:119970. [PMID: 33059013 DOI: 10.1016/j.ijpharm.2020.119970] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/06/2020] [Accepted: 10/08/2020] [Indexed: 12/27/2022]
Abstract
In the current study electrospraying methodology was used for particle engineering of montelukast and budesonide to prepare a combined inhalable dry powder formulation applicable as a smart regimen in asthma treatment. For this, electrospraying was carried out using different solvents and drug concentrations. No carrier was added for the formulation of montelukast-budesonide combination as montelukast played the role of both active ingredient and carrier. Scanning electron microscopy, particle size analysis, gas chromatography, powder X-ray diffraction, Fourier transform infrared spectroscopy, and differential scanning calorimetry were used to evaluate the physicochemical properties of the produced drug particles. In vitro drug deposition pattern was assessed using next generation impactor, and the dissolution profile of the selected formulations was characterized via modified diffusion franz cell method. The FPF value for the co-electrosprayed carrier free formulation of montelukast-budesonide was 38% with a significantly enhanced dissolution rate for budesonide compared to the budesonide alone formulations. The pharmacological effects of hypothesized combined formulation was assessed by measuring its power to inhibit the production of reactive oxygen species in human normal lung cells. The results showed that the combination of montelukast and budesonide can exert a synergistic effect. The findings in the current study emphasize that using montelukast as a carrier for budesonide not only has greatly improved the aerosolization behavior and dissolution rate of budesonide but also has resulted in synergistic pharmacological effects, indicating the suitability of this combination as an anti-asthmatic therapeutic.
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Affiliation(s)
- Shadi Yaqoubi
- Faculty of Pharmacy and Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Nokhodchi
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, UK
| | - Shahram Emami
- Department of Pharmaceutics, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Ali Akbar Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Mohammad Barzegar-Jalali
- Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
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Castillo-Henríquez L, Vargas-Zúñiga R, Pacheco-Molina J, Vega-Baudrit J. Electrospun nanofibers: A nanotechnological approach for drug delivery and dissolution optimization in poorly water-soluble drugs. ADMET AND DMPK 2020; 8:325-353. [PMID: 35300196 PMCID: PMC8915594 DOI: 10.5599/admet.844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 07/02/2020] [Indexed: 01/02/2023] Open
Abstract
Electrospinning is a novel and sophisticated technique for the production of nanofibers with high surface area, extreme porous structure, small pore size, and surface morphologies that make them suitable for biomedical and bioengineering applications, which can provide solutions to current drug delivery issues of poorly water-soluble drugs. Electrospun nanofibers can be obtained through different methods asides from the conventional one, such as coaxial, multi-jet, side by side, emulsion, and melt electrospinning. In general, the application of an electric potential to a polymer solution causes a charged liquid jet that moves downfield to an oppositely charged collector, where the nanofibers are deposited. Plenty of polymers that differ in their origin, degradation character and water affinity are used during the process. Physicochemical properties of the drug, polymer(s), and solvent systems need to be addressed to guarantee successful manufacturing. Therefore, this review summarizes the recent progress in electrospun nanofibers for their use as a nanotechnological tool for dissolution optimization and drug delivery systems for poorly water-soluble drugs.
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Affiliation(s)
- Luis Castillo-Henríquez
- Physical Chemistry Laboratory, Faculty of Pharmacy, University of Costa Rica, 11501-2060, San José, Costa Rica.,National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), 1174-1200, San José, Costa Rica
| | - Rolando Vargas-Zúñiga
- Physical Chemistry Laboratory, Faculty of Pharmacy, University of Costa Rica, 11501-2060, San José, Costa Rica
| | - Jorge Pacheco-Molina
- Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, University of Costa Rica, 11501-2060, San José, Costa Rica
| | - Jose Vega-Baudrit
- National Laboratory of Nanotechnology (LANOTEC), National Center for High Technology (CeNAT), 1174-1200, San José, Costa Rica.,Laboratory of Polymers (POLIUNA), Chemistry School, National University of Costa Rica, 86-3000, Heredia, Costa Rica
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10
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Frequency and waveform dependence of alternating current electrospinning and their uses for drug dissolution enhancement. Int J Pharm 2020; 586:119593. [PMID: 32622813 DOI: 10.1016/j.ijpharm.2020.119593] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/23/2020] [Accepted: 06/26/2020] [Indexed: 01/29/2023]
Abstract
The effect of different frequencies and waveforms was investigated for the first time on alternating current electrospinning (ACES). PVPVA64, a polyvinylpyrrolidone-vinyl acetate copolymer was selected for the experiments as an important matrix for amorphous solid dispersions but never processed with ACES. It has been proved that ACES could be operated in a wide range of frequencies (40-250 Hz) and using different waveforms (sinusoidal, square, triangle, saw tooth) without significant changes in fiber morphology. Nevertheless, deterioration of the fiber formation process could be also observed especially at high frequencies. The developed PVPVA64-based fibers containing small amounts of additives (polyethylene oxide (PEO) and sodium dodecyl sulfate (SDS)) served as an excellent carrier for spironolactone (SPIR), a poorly soluble antihypertensive drug. As a result of the amorphously dispersed SPIR and the large surface area of the AC electrospun fibers immediate drug release could be achieved.
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11
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Liu H, Gough CR, Deng Q, Gu Z, Wang F, Hu X. Recent Advances in Electrospun Sustainable Composites for Biomedical, Environmental, Energy, and Packaging Applications. Int J Mol Sci 2020; 21:E4019. [PMID: 32512793 PMCID: PMC7312508 DOI: 10.3390/ijms21114019] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/01/2020] [Accepted: 06/02/2020] [Indexed: 12/13/2022] Open
Abstract
Electrospinning has gained constant enthusiasm and wide interest as a novel sustainable material processing technique due to its ease of operation and wide adaptability for fabricating eco-friendly fibers on a nanoscale. In addition, the device working parameters, spinning solution properties, and the environmental factors can have a significant effect on the fibers' morphology during electrospinning. This review summarizes the newly developed principles and influence factors for electrospinning technology in the past five years, including these factors' interactions with the electrospinning mechanism as well as its most recent applications of electrospun natural or sustainable composite materials in biology, environmental protection, energy, and food packaging materials.
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Affiliation(s)
- Hao Liu
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China; (H.L.); (Q.D.)
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China;
| | - Christopher R. Gough
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA;
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA
| | - Qianqian Deng
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China; (H.L.); (Q.D.)
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China;
| | - Zhenggui Gu
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China;
| | - Fang Wang
- Center of Analysis and Testing, Nanjing Normal University, Nanjing 210023, China; (H.L.); (Q.D.)
- School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China;
| | - Xiao Hu
- Department of Physics and Astronomy, Rowan University, Glassboro, NJ 08028, USA;
- Department of Biomedical Engineering, Rowan University, Glassboro, NJ 08028, USA
- Department of Molecular and Cellular Biosciences, Rowan University, Glassboro, NJ 08028, USA
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12
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Mašková E, Kubová K, Raimi-Abraham BT, Vllasaliu D, Vohlídalová E, Turánek J, Mašek J. Hypromellose - A traditional pharmaceutical excipient with modern applications in oral and oromucosal drug delivery. J Control Release 2020; 324:695-727. [PMID: 32479845 DOI: 10.1016/j.jconrel.2020.05.045] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 05/27/2020] [Accepted: 05/27/2020] [Indexed: 02/07/2023]
Abstract
Hydroxypropylmethylcellulose (HPMC), also known as Hypromellose, is a traditional pharmaceutical excipient widely exploited in oral sustained drug release matrix systems. The choice of numerous viscosity grades and molecular weights available from different manufacturers provides a great variability in its physical-chemical properties and is a basis for its broad successful application in pharmaceutical research, development, and manufacturing. The excellent mucoadhesive properties of HPMC predetermine its use in oromucosal delivery systems including mucoadhesive tablets and films. HPMC also possesses desirable properties for formulating amorphous solid dispersions increasing the oral bioavailability of poorly soluble drugs. Printability and electrospinnability of HPMC are promising features for its application in 3D printed drug products and nanofiber-based drug delivery systems. Nanoparticle-based formulations are extensively explored as antigen and protein carriers for the formulation of oral vaccines, and oral delivery of biologicals including insulin, respectively. HPMC, being a traditional pharmaceutical excipient, has an irreplaceable role in the development of new pharmaceutical technologies, and new drug products leading to continuous manufacturing processes, and personalized medicine. This review firstly provides information on the physical-chemical properties of HPMC and a comprehensive overview of its application in traditional oral drug formulations. Secondly, this review focuses on the application of HPMC in modern pharmaceutical technologies including spray drying, hot-melt extrusion, 3D printing, nanoprecipitation and electrospinning leading to the formulation of printlets, nanoparticle-, microparticle-, and nanofiber-based delivery systems for oral and oromucosal application. Hypromellose is an excellent excipient for formulation of classical dosage forms and advanced drug delivery systems. New methods of hypromellose processing include spray draying, hot-melt extrusion, 3D printing, and electrospinning.
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Affiliation(s)
- Eliška Mašková
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 70, Brno 621 00, Czech Republic
| | - Kateřina Kubová
- Faculty of Pharmacy, Masaryk University, Brno 625 00, Czech Republic
| | - Bahijja T Raimi-Abraham
- School of Cancer and Pharmaceutical Sciences, King's College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Driton Vllasaliu
- School of Cancer and Pharmaceutical Sciences, King's College London, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Eva Vohlídalová
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 70, Brno 621 00, Czech Republic
| | - Jaroslav Turánek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 70, Brno 621 00, Czech Republic.
| | - Josef Mašek
- Department of Pharmacology and Immunotherapy, Veterinary Research Institute, Hudcova 70, Brno 621 00, Czech Republic.
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Scale‐up of electrospinning technology: Applications in the pharmaceutical industry. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1611. [DOI: 10.1002/wnan.1611] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 01/25/2023]
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14
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Abstract
Electrospinning is a versatile and viable technique for generating ultrathin fibers. Remarkable progress has been made with regard to the development of electrospinning methods and engineering of electrospun nanofibers to suit or enable various applications. We aim to provide a comprehensive overview of electrospinning, including the principle, methods, materials, and applications. We begin with a brief introduction to the early history of electrospinning, followed by discussion of its principle and typical apparatus. We then discuss its renaissance over the past two decades as a powerful technology for the production of nanofibers with diversified compositions, structures, and properties. Afterward, we discuss the applications of electrospun nanofibers, including their use as "smart" mats, filtration membranes, catalytic supports, energy harvesting/conversion/storage components, and photonic and electronic devices, as well as biomedical scaffolds. We highlight the most relevant and recent advances related to the applications of electrospun nanofibers by focusing on the most representative examples. We also offer perspectives on the challenges, opportunities, and new directions for future development. At the end, we discuss approaches to the scale-up production of electrospun nanofibers and briefly discuss various types of commercial products based on electrospun nanofibers that have found widespread use in our everyday life.
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Affiliation(s)
- Jiajia Xue
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Tong Wu
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Yunqian Dai
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, Jiangsu 211189, People’s Republic of China
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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15
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Vlachou M, Kikionis S, Siamidi A, Tragou K, Kapoti S, Ioannou E, Roussis V, Tsotinis A. Fabrication and Characterization of Electrospun Nanofibers for the Modified Release of the Chronobiotic Hormone Melatonin. Curr Drug Deliv 2019; 16:79-85. [PMID: 30215335 PMCID: PMC6340153 DOI: 10.2174/1567201815666180914095701] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 06/20/2018] [Accepted: 09/11/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Aiming at the modified release of melatonin (MLT), electrospun-MLT loaded nanofibers, filled into hard gelatin and DRcapsTM capsules, were used as formulants. METHODS Cellulose acetate, polyvinylpyrrolidinone and hydroxypropylmethylcellusose (HPMC 2910) were used for the preparation of the fiber matrices through electrospinning. The in vitro modified release profile of MLT from the fabricated matrices in gastrointestinal-like fluids was studied. At pH 1.2, the formulations CA1, CA2, PV1, HP1, HP2 and the composite formulations CAPV1-CAPV5 in hard gelatin capsules exhibited fast MLT release. RESULTS In general, the same trend was observed at pH 6.8, with the exception of CAPV1 and CAPV2. These two composite formulations delivered 52.08% and 75.25% MLT, respectively at a slower pace (6 h) when encapsulated in DRcapsTM capsules. In all other cases, the release of MLT from DRcapsTM capsules filled with the MLT-loaded nanofibers reached 100% at 6h. CONCLUSION These findings suggest that the MLT-loaded nanofibrous mats developed in this study exhibit a promising profile for treating sleep dysfunctions.
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Affiliation(s)
- Marilena Vlachou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Stefanos Kikionis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Angeliki Siamidi
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Konstantina Tragou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Stefania Kapoti
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Efstathia Ioannou
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Vassilios Roussis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Andrew Tsotinis
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
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16
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Farkas B, Balogh A, Cselkó R, Molnár K, Farkas A, Borbás E, Marosi G, Nagy ZK. Corona alternating current electrospinning: A combined approach for increasing the productivity of electrospinning. Int J Pharm 2019; 561:219-227. [PMID: 30844423 DOI: 10.1016/j.ijpharm.2019.03.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/01/2019] [Accepted: 03/02/2019] [Indexed: 01/29/2023]
Abstract
Corona alternating current electrospinning (C-ACES), a scaled-up productivity electrospinning method was developed by combining the intense forces of the alternating electrostatic field and a sharp-edged spinneret design with increased free surface. C-ACES reached two orders of magnitude higher productivity (up to 1200 mL/h) than the classical single needle direct current electrospinning (DCES) without any alteration of fiber properties. Polyvinylpyrrolidone K90 (PVPK90), a water soluble high molecular weight nonionic polymer was processed for the first time with single needle alternating current electrospinning (ACES) and C-ACES in order to prepare fast dissolving amorphous solid dispersions of spironolactone (SPIR), a poorly water-soluble antihypertensive model drug. The limited spinnability of PVPK90 with AC high voltage could only be resolved by optimizing the solution conductivity with organophilic salts such as sodium dodecyl sulfate (SDS) demonstrating the importance of conductivity during ACES. The effects of varied solution properties (composition and conductivity) and scaling-up were investigated by SEM imaging. Solid state analyses revealed that SPIR was dispersed in an amorphous form in the fibrous mats. In vitro dissolution tests showed ultrafast drug release in case of the amorphous formulations even when prepared with scaled-up C-ACES. Besides the enhancement of conductivity SDS also prevents SPIR from precipitation from the dissolution media due to its solubilization ability.
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Affiliation(s)
- Balázs Farkas
- Budapest University of Technology and Economics, Department of Organic Chemistry and Technology, H-1111 Budapest, Hungary
| | - Attila Balogh
- Budapest University of Technology and Economics, Department of Organic Chemistry and Technology, H-1111 Budapest, Hungary.
| | - Richárd Cselkó
- Budapest University of Technology and Economics, Department of Electric Power Engineering, H-1111 Budapest, Hungary
| | - Kolos Molnár
- Budapest University of Technology and Economics, Department of Polymer Engineering, H-1111 Budapest, Hungary; MTA-BME Research Group for Composite Science and Technology, H-1111 Budapest, Hungary
| | - Attila Farkas
- Budapest University of Technology and Economics, Department of Organic Chemistry and Technology, H-1111 Budapest, Hungary
| | - Enikő Borbás
- Budapest University of Technology and Economics, Department of Organic Chemistry and Technology, H-1111 Budapest, Hungary
| | - György Marosi
- Budapest University of Technology and Economics, Department of Organic Chemistry and Technology, H-1111 Budapest, Hungary
| | - Zsombor Kristóf Nagy
- Budapest University of Technology and Economics, Department of Organic Chemistry and Technology, H-1111 Budapest, Hungary
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Aydogdu A, Sumnu G, Sahin S. Fabrication of gallic acid loaded Hydroxypropyl methylcellulose nanofibers by electrospinning technique as active packaging material. Carbohydr Polym 2019; 208:241-250. [DOI: 10.1016/j.carbpol.2018.12.065] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Revised: 11/14/2018] [Accepted: 12/21/2018] [Indexed: 12/28/2022]
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18
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Pawar A, Thakkar S, Misra M. A bird's eye view of nanoparticles prepared by electrospraying: advancements in drug delivery field. J Control Release 2018; 286:179-200. [DOI: 10.1016/j.jconrel.2018.07.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 01/19/2023]
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19
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Liu M, Zhang Y, Sun S, Khan AR, Ji J, Yang M, Zhai G. Recent advances in electrospun for drug delivery purpose. J Drug Target 2018; 27:270-282. [PMID: 29798692 DOI: 10.1080/1061186x.2018.1481413] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Electrospun, an advanced technology, has been successfully employed for fibre production and offers many merits in novel drug delivery systems (DDSs). In recent years, electrospun has gained significant attention and attraction of the scientists in soaring numbers. This technology is superior to other technologies in fabricating the fibres which range from micrometers to manometers scale. The selection of appropriate polymers, electrospun processes and electrospun parameters play important roles in controlling the drug release while, treating serious illness. Besides, electrospraying process has similar characteristics to the electrospun and is presented briefly here. Further, in vivo and in vitro evaluations of the electrospun nanofibers are comprehensively discussed. In addition, the electrospun nanotechnology has been exploited to design drug release systems, investigate drug's pharmacokinetics and further develop DDS. The electrospun nanofibers improve bioactivity of various types of drugs including water-insoluble, soluble, anticancer and antibacterial drugs and genetic materials. In the end, the prospects and challenges in the process of designing drug-loaded electrospun nanofibers are discussed in detail.
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Affiliation(s)
- Mengyao Liu
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Yanan Zhang
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Siyu Sun
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Abdur Rauf Khan
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Jianbo Ji
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Mingshi Yang
- b Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Copenhagen , Denmark
| | - Guangxi Zhai
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
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20
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Chitosan-based hydrogels: Preparation, properties and applications. Int J Biol Macromol 2018; 115:194-220. [DOI: 10.1016/j.ijbiomac.2018.04.034] [Citation(s) in RCA: 163] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 03/18/2018] [Accepted: 04/08/2018] [Indexed: 12/18/2022]
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21
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Grip J, Engstad RE, Skjæveland I, Škalko-Basnet N, Isaksson J, Basnet P, Holsæter AM. Beta-glucan-loaded nanofiber dressing improves wound healing in diabetic mice. Eur J Pharm Sci 2018; 121:269-280. [DOI: 10.1016/j.ejps.2018.05.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 05/06/2018] [Accepted: 05/31/2018] [Indexed: 12/31/2022]
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22
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Liu ZP, Zhang LL, Yang YY, Wu D, Jiang G, Yu DG. Preparing composite nanoparticles for immediate drug release by modifying electrohydrodynamic interfaces during electrospraying. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.12.066] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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23
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A novel electrospun hydroxypropyl methylcellulose/polyethylene oxide blend nanofibers: Morphology and physicochemical properties. Carbohydr Polym 2018; 181:234-246. [DOI: 10.1016/j.carbpol.2017.10.071] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 10/10/2017] [Accepted: 10/22/2017] [Indexed: 11/18/2022]
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24
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Gizaw M, Thompson J, Faglie A, Lee SY, Neuenschwander P, Chou SF. Electrospun Fibers as a Dressing Material for Drug and Biological Agent Delivery in Wound Healing Applications. Bioengineering (Basel) 2018; 5:E9. [PMID: 29382065 PMCID: PMC5874875 DOI: 10.3390/bioengineering5010009] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/17/2018] [Accepted: 01/22/2018] [Indexed: 12/16/2022] Open
Abstract
Wound healing is a complex tissue regeneration process that promotes the growth of new tissue to provide the body with the necessary barrier from the outside environment. In the class of non-healing wounds, diabetic wounds, and ulcers, dressing materials that are available clinically (e.g., gels and creams) have demonstrated only a slow improvement with current available technologies. Among all available current technologies, electrospun fibers exhibit several characteristics that may provide novel replacement dressing materials for the above-mentioned wounds. Therefore, in this review, we focus on recent achievements in electrospun drug-eluting fibers for wound healing applications. In particular, we review drug release, including small molecule drugs, proteins and peptides, and gene vectors from electrospun fibers with respect to wound healing. Furthermore, we provide an overview on multifunctional dressing materials based on electrospun fibers, including those that are capable of achieving wound debridement and wound healing simultaneously as well as multi-drugs loading/types suitable for various stages of the healing process. Our review provides important and sufficient information to inform the field in development of fiber-based dressing materials for clinical treatment of non-healing wounds.
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Affiliation(s)
- Mulugeta Gizaw
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Jeffrey Thompson
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Addison Faglie
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Shih-Yu Lee
- School of Nursing, College of Nursing and Health Sciences, The University of Texas at Tyler, Tyler, TX 75799, USA.
| | - Pierre Neuenschwander
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, TX 75708, USA.
| | - Shih-Feng Chou
- Department of Mechanical Engineering, College of Engineering, The University of Texas at Tyler, Tyler, TX 75799, USA.
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25
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Controlled-release solid dispersions of Eudragit® FS 100 and poorly soluble spironolactone prepared by electrospinning and melt extrusion. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.08.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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26
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Paulett K, Brayer WA, Hatch K, Kalous T, Sewell J, Liavitskaya T, Vyazovkin S, Liu F, Lukáš D, Stanishevsky A. Effect of nanocrystalline cellulose addition on needleless alternating current electrospinning and properties of nanofibrous polyacrylonitrile meshes. J Appl Polym Sci 2017. [DOI: 10.1002/app.45772] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Katherine Paulett
- Department of PhysicsUniversity of Alabama at Birmingham, 1300 University BoulevardBirmingham Alabama 35294
| | - W. Anthony Brayer
- Department of PhysicsUniversity of Alabama at Birmingham, 1300 University BoulevardBirmingham Alabama 35294
| | - Katrina Hatch
- Department of PhysicsUniversity of Alabama at Birmingham, 1300 University BoulevardBirmingham Alabama 35294
| | - Tomáš Kalous
- Faculty of Textile EngineeringTechnical University of Liberec, Studentska 2Liberec 1, 461 17 Czech Republic
| | - Jerry Sewell
- Department of PhysicsUniversity of Alabama at Birmingham, 1300 University BoulevardBirmingham Alabama 35294
| | - Tatsiana Liavitskaya
- Department of ChemistryUniversity of Alabama at Birmingham, 901 14th Street SouthBirmingham Alabama 35294
| | - Sergey Vyazovkin
- Department of ChemistryUniversity of Alabama at Birmingham, 901 14th Street SouthBirmingham Alabama 35294
| | - Fei Liu
- Department of ChemistryUniversity of Alabama at Birmingham, 901 14th Street SouthBirmingham Alabama 35294
| | - David Lukáš
- Faculty of Textile EngineeringTechnical University of Liberec, Studentska 2Liberec 1, 461 17 Czech Republic
| | - Andrei Stanishevsky
- Department of PhysicsUniversity of Alabama at Birmingham, 1300 University BoulevardBirmingham Alabama 35294
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27
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A thermosensitive drug delivery system prepared by blend electrospinning. Colloids Surf B Biointerfaces 2017; 159:277-283. [PMID: 28802202 DOI: 10.1016/j.colsurfb.2017.07.058] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 07/18/2017] [Accepted: 07/24/2017] [Indexed: 11/22/2022]
Abstract
In this study, the thermosensitive polymer poly(di(ethylene glycol) methyl ether methacrylate) (PDEGMA) was synthesized and electrospun into fibers by blending with ethyl cellulose (EC). Fibers were additionally prepared loaded with ketoprofen (KET) as a model drug. Smooth cylindrical fibers could generally be observed by electron microscopy, although there were some beads and fused fibers visible in the KET-loaded materials. KET was found to be amorphously distributed in the fibers on the basis of X-ray diffraction data. From water contact angle measurements, it was clear that the wettability of the EC/PDEGMA systems changed as the temperature increased, with the fibers becoming markedly more hydrophobic. In vitro drug release studies showed that KET was released over a prolonged period of time with the fibers having different profiles at 25 and 37°C, reflecting their thermosensitive properties. Furthermore, the materials were found to have good biocompatibility towards L929 fibroblasts. Thus, the fibers prepared in this work have potential as smart stimuli-responsive drug delivery systems.
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28
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Balogh A, Farkas B, Pálvölgyi Á, Domokos A, Démuth B, Marosi G, Nagy ZK. Novel Alternating Current Electrospinning of Hydroxypropylmethylcellulose Acetate Succinate (HPMCAS) Nanofibers for Dissolution Enhancement: The Importance of Solution Conductivity. J Pharm Sci 2017; 106:1634-1643. [PMID: 28257818 DOI: 10.1016/j.xphs.2017.02.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 02/01/2017] [Accepted: 02/16/2017] [Indexed: 11/17/2022]
Abstract
Novel, high-yield alternating current electrospinning (ACES) and direct current electrospinning methods were investigated to prepare high-quality hydroxypropylmethylcellulose acetate succinate (HPMCAS) fibers for the dissolution enhancement of poorly soluble spironolactone. Although HPMCAS is of great pharmaceutical importance as a carrier of marketed solid dispersion-based products, it was found to be unprocessable using electrospinning. Addition of small amounts of polyethylene oxide as aid polymer provided smooth fibers with direct current electrospinning but strongly beaded products with ACES. Solution characteristics were thus modified by introducing further excipients. In the presence of sodium dodecyl sulfate, high-quality, HPMCAS-based fibers were obtained even at higher throughput rates of ACES owing to the change in conductivity (rather than surface tension). Replacement of sodium dodecyl sulfate with non-surface-active salts (calcium chloride and ammonium acetate) maintained the fine quality of nanofibers, confirming the importance of conductivity in ACES process. The HPMCAS-based fibers contained spironolactone in an amorphous form according to differential scanning calorimetry and X-ray powder diffraction. In vitro dissolution tests revealed fast drug release rates depending on the salt used to adjust conductivity. The presented results signify that ACES can be a prospective process for high-scale production of fibrous solid dispersions in which conductivity of solution has a fundamental role.
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Affiliation(s)
- Attila Balogh
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Balázs Farkas
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Ádám Pálvölgyi
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - András Domokos
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Balázs Démuth
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - György Marosi
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary
| | - Zsombor Kristóf Nagy
- Organic Chemistry and Technology Department, Budapest University of Technology and Economics, Budapest 1111, Hungary.
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