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Gürtler AL, Rades T, Heinz A. Electrospun fibers for the treatment of skin diseases. J Control Release 2023; 363:621-640. [PMID: 37820983 DOI: 10.1016/j.jconrel.2023.10.009] [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: 07/21/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 10/13/2023]
Abstract
Skin diseases are among the most common diseases in the global population and with the growth of the aging population, they represent an increasing burden to healthcare systems worldwide. Even though they are rarely life-threatening, the suffering for those affected is high due to the visibility and physical discomfort related to these diseases. Typical symptoms of skin diseases include an inflamed, swollen or itchy skin, and therefore, there is a high demand for effective therapy options. In recent years, electrospinning has attracted considerable interest in the field of drug delivery. The technique allows producing multifunctional drug-loaded fibrous patches from various natural and synthetic polymers with fiber diameters in the nano- and micrometer range, suitable for the treatment of a wide variety of skin diseases. The great potential of electrospun fiber patches not only lies in their tunable drug release properties and the possibility to entrap a variety of therapeutic compounds, but they also provide physical and mechanical protection to the impaired skin area, exhibit a high surface area, allow gas exchange, absorb exudate due to their porous structure and are cytocompatible and biodegradable. In the case of wound healing, cell adhesion is promoted due to the resemblance of the electrospun fibers to the structure of the native extracellular matrix. This review gives an overview of the potential applications of electrospun fibers in skin therapy. In addition to the treatment of bacterial, diabetic and burn wounds, focus is placed on inflammatory diseases such as atopic dermatitis and psoriasis, and therapeutic options for the treatment of skin cancer, acne vulgaris and herpes labialis are discussed. While we aim to emphasize the great potential of electrospun fiber patches for the treatment of skin diseases with this review paper, we also highlight challenges and limitations of current research in the field.
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Affiliation(s)
- Anna-Lena Gürtler
- Department of Pharmacy, LEO Foundation Center for Cutaneous Drug Delivery, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, LEO Foundation Center for Cutaneous Drug Delivery, University of Copenhagen, Copenhagen, Denmark
| | - Andrea Heinz
- Department of Pharmacy, LEO Foundation Center for Cutaneous Drug Delivery, University of Copenhagen, Copenhagen, Denmark.
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2
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Klicova M, Mullerova S, Rosendorf J, Klapstova A, Jirkovec R, Erben J, Petrzilkova M, Raabová H, Šatínský D, Melicherikova J, Palek R, Liska V, Horakova J. Large-Scale Development of Antibacterial Scaffolds: Gentamicin Sulfate-Loaded Biodegradable Nanofibers for Gastrointestinal Applications. ACS OMEGA 2023; 8:40823-40835. [PMID: 37929155 PMCID: PMC10620781 DOI: 10.1021/acsomega.3c05924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 09/29/2023] [Indexed: 11/07/2023]
Abstract
The ever-increasing demands of modern medicine drive the development of novel drug delivery materials. In particular, nanofibers are promising for such materials due to their favorable properties. However, most development is still carried out through laboratory techniques that do not allow extensive and reproducible characterization of materials, which slows medical research. In this work, we focus on the large-scale fabrication and testing of specific antibacterial nanofibrous materials to prevent the postoperative complications associated with the occurrence of bacterial infection. Poly-ε-caprolactone with gentamicin sulfate (antibiotic) in different concentrations was electrospun via a needleless device. The amount of antibiotics was proven by elemental analysis, UV spectrophotometry, and HPLC. The cytocompatibility of the materials was verified in vitro according to ISO 10993-5. The cell adhesion and proliferation were assessed after 2, 7, 14, and 21 days using the CCK-8 metabolic assay, fluorescence, and scanning electron microscopy. The tested nanofiber materials supported cell growth. Antibacterial tests were performed to confirm the release of gentamicin sulfate, and its antibacterial properties were proven toward Staphylococcus gallinarum and Escherichia coli bacteria. The effect of ethylene oxide sterilization was also studied. The sterilized nanofibrous layers are cytocompatible while antibacterial and therefore suitable for medical applications.
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Affiliation(s)
- Marketa Klicova
- Department
of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, Liberec 461 17, Czech Republic
| | - Senta Mullerova
- Department
of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, Liberec 461 17, Czech Republic
| | - Jachym Rosendorf
- Biomedical
Center, Faculty of Medicine in Pilsen, Charles
University, Alej Svobody 1655/76, Plzen 323 00, Czech Republic
| | - Andrea Klapstova
- Department
of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, Liberec 461 17, Czech Republic
| | - Radek Jirkovec
- Department
of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, Liberec 461 17, Czech Republic
| | - Jakub Erben
- Department
of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, Liberec 461 17, Czech Republic
| | - Michaela Petrzilkova
- Faculty
of Mechatronics, Informatics and Interdisciplinary Studies, Institute of New Technologies and Applied Informatics, Studentska 1402/2, Liberec 461 17, Czech Republic
| | - Hedvika Raabová
- Faculty
of Pharmacy, The Department of Analytical Chemistry, Charles University, Akademika Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic
| | - Dalibor Šatínský
- Faculty
of Pharmacy, The Department of Analytical Chemistry, Charles University, Akademika Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic
| | - Jana Melicherikova
- The
Institute for Nanomaterials, Advanced Technologies and Innovation, Technical University of Liberec, Bendlova 7, Liberec 460 01, Czech Republic
| | - Richard Palek
- Biomedical
Center, Faculty of Medicine in Pilsen, Charles
University, Alej Svobody 1655/76, Plzen 323 00, Czech Republic
| | - Vaclav Liska
- Biomedical
Center, Faculty of Medicine in Pilsen, Charles
University, Alej Svobody 1655/76, Plzen 323 00, Czech Republic
| | - Jana Horakova
- Department
of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 2, Liberec 461 17, Czech Republic
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3
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Transito-Medina J, Vázquez-Vélez E, Castillo MC, Martínez H, Campillo B. Gentamicin Release Study in Uniaxial and Coaxial Polyhydroxybutyrate-Polyethylene Glycol-Gentamicin Microfibers Treated with Atmospheric Plasma. Polymers (Basel) 2023; 15:3889. [PMID: 37835937 PMCID: PMC10575239 DOI: 10.3390/polym15193889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/17/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
The skin is the largest organ and one of the most important in the human body, and is constantly exposed to pathogenic microorganisms that cause infections; then, pharmacological administration is required. One of the basic medical methods for treating chronic wounds is to use topical dressings with characteristics that promote wound healing. Fiber-based dressings mimic the local dermal extracellular matrix (ECM), maintaining an ideal wound-healing climate. This work proposes electrospun PHB/PEG polymeric microfibers as dressings for administering the antibiotic gentamicin directed at skin infections. PHB-PEG/gentamicin fibers were characterized before and after plasma treatment by Raman spectroscopy, FTIR, and XRD. SEM was used to evaluate fiber morphology and yarn size. The plasma treatment improved the hydrophilicity of the PHB/PEG/gentamicin fibers. The release of gentamicin in the plasma-treated fibers was more sustained over time than in the untreated ones.
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Affiliation(s)
- Josselyne Transito-Medina
- Nanotechnology, Academic Division of Industrial Mechanics, Emiliano Zapata Technological University of the State of Morelos, Emiliano Zapata 62765, Mexico; (J.T.-M.); (M.C.C.)
| | - Edna Vázquez-Vélez
- Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico, Av. Universidad #1000, Col. Chamilpa, Cuernavaca 62210, Mexico;
| | - Marilú Chávez Castillo
- Nanotechnology, Academic Division of Industrial Mechanics, Emiliano Zapata Technological University of the State of Morelos, Emiliano Zapata 62765, Mexico; (J.T.-M.); (M.C.C.)
| | - Horacio Martínez
- Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico, Av. Universidad #1000, Col. Chamilpa, Cuernavaca 62210, Mexico;
| | - Bernardo Campillo
- Spectroscopy Laboratory, Institute of Physical Sciences, National Autonomous University of Mexico, Av. Universidad #1000, Col. Chamilpa, Cuernavaca 62210, Mexico;
- Faculty of Chemistry, National Autonomous University of Mexico, Cuajimalpa 05000, Mexico
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4
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Morina E, Dotter M, Döpke C, Kola I, Spahiu T, Ehrmann A. Homogeneity of Needleless Electrospun Nanofiber Mats. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2507. [PMID: 37764536 PMCID: PMC10535507 DOI: 10.3390/nano13182507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023]
Abstract
Nanofiber mats can be electrospun by different techniques, usually subdivided into needle-based and needleless. The latter allow for producing large-area nanofiber mats, e.g., with a width of 50 cm and lengths of several meters, if electrospinning proceeds for several hours, depending on the required thickness. Even spinning smaller samples, however, raises the question of homogeneity, especially if defined mechanical properties or a defined thickness is required, e.g., for filtration purposes. Very often, only the inner parts of such electrospun nanofiber mats are used to avoid too high variation of the nanofiber mat thickness. For this study, we used wire-based electrospinning to prepare nanofiber mats with slightly varying spinning parameters. We report investigations of the thickness and mass per unit area, measured on different positions of needleless electrospun nanofiber mats. Martindale abrasion tests on different positions are added as a measure of the mechanical properties. All nanofiber mats show unexpectedly strong variations of thickness, mass per unit area, and porosity, as calculated from the apparent density of the membranes. The thickness especially varied by nearly one order of magnitude within one sample, while the apparent density, as the most uniform parameter, still showed variations by more than a factor of two within one sample. This shows that even for apparently highly homogeneous areas of such nanofiber mats, variations cannot be neglected for all potential applications.
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Affiliation(s)
- Edona Morina
- Department of Textile and Fashion, Polytechnic University of Tirana, 1019 Tirana, Albania
| | - Marius Dotter
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences and Arts, 33619 Bielefeld, Germany
| | - Christoph Döpke
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences and Arts, 33619 Bielefeld, Germany
| | - Ilda Kola
- Department of Textile and Fashion, Polytechnic University of Tirana, 1019 Tirana, Albania
| | - Tatjana Spahiu
- Department of Textile and Fashion, Polytechnic University of Tirana, 1019 Tirana, Albania
| | - Andrea Ehrmann
- Faculty of Engineering and Mathematics, Bielefeld University of Applied Sciences and Arts, 33619 Bielefeld, Germany
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Latiyan S, Kumar TSS, Doble M, Kennedy JF. Perspectives of nanofibrous wound dressings based on glucans and galactans - A review. Int J Biol Macromol 2023:125358. [PMID: 37330091 DOI: 10.1016/j.ijbiomac.2023.125358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 06/06/2023] [Accepted: 06/10/2023] [Indexed: 06/19/2023]
Abstract
Wound healing is a complex and dynamic process that needs an appropriate environment to overcome infection and inflammation to progress well. Wounds lead to morbidity, mortality, and a significant economic burden, often due to the non-availability of suitable treatments. Hence, this field has lured the attention of researchers and pharmaceutical industries for decades. As a result, the global wound care market is expected to be 27.8 billion USD by 2026 from 19.3 billion USD in 2021, at a compound annual growth rate (CAGR) of 7.6 %. Wound dressings have emerged as an effective treatment to maintain moisture, protect from pathogens, and impede wound healing. However, synthetic polymer-based dressings fail to comprehensively address optimal and quick regeneration requirements. Natural polymers like glucan and galactan-based carbohydrate dressings have received much attention due to their inherent biocompatibility, biodegradability, inexpensiveness, and natural abundance. Also, nanofibrous mesh supports better proliferation and migration of fibroblasts because of their large surface area and similarity to the extracellular matrix (ECM). Thus, nanostructured dressings derived from glucans and galactans (i.e., chitosan, agar/agarose, pullulan, curdlan, carrageenan, etc.) can overcome the limitations associated with traditional wound dressings. However, they require further development pertaining to the wireless determination of wound bed status and its clinical assessment. The present review intends to provide insight into such carbohydrate-based nanofibrous dressings and their prospects, along with some clinical case studies.
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Affiliation(s)
- Sachin Latiyan
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India; Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India
| | - T S Sampath Kumar
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
| | - Mukesh Doble
- Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India; Saveetha Dental College & Hospitals, Saveetha Institute of Medical and Technical Sciences, Chennai 600077, India
| | - John F Kennedy
- Chembiotech Labs, Institute of Science and Technology, Kyrewood House, Tenbury Wells WR158FF, UK
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Hobzova R, Sirc J, Shrestha K, Mudrova B, Bosakova Z, Slouf M, Munzarova M, Hrabeta J, Feglarova T, Cocarta AI. Multilayered Polyurethane/Poly(vinyl alcohol) Nanofibrous Mats for Local Topotecan Delivery as a Potential Retinoblastoma Treatment. Pharmaceutics 2023; 15:pharmaceutics15051398. [PMID: 37242640 DOI: 10.3390/pharmaceutics15051398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/28/2023] Open
Abstract
Local chemotherapy using polymer drug delivery systems has the potential to treat some cancers, including intraocular retinoblastoma, which is difficult to treat with systemically delivered drugs. Well-designed carriers can provide the required drug concentration at the target site over a prolonged time, reduce the overall drug dose needed, and suppress severe side effects. Herein, nanofibrous carriers of the anticancer agent topotecan (TPT) with a multilayered structure composed of a TPT-loaded inner layer of poly(vinyl alcohol) (PVA) and outer covering layers of polyurethane (PUR) are proposed. Scanning electron microscopy showed homogeneous incorporation of TPT into the PVA nanofibers. HPLC-FLD proved the good loading efficiency of TPT (≥85%) with a content of the pharmacologically active lactone TPT of more than 97%. In vitro release experiments demonstrated that the PUR cover layers effectively reduced the initial burst release of hydrophilic TPT. In a 3-round experiment with human retinoblastoma cells (Y-79), TPT showed prolonged release from the sandwich-structured nanofibers compared with that from a PVA monolayer, with significantly enhanced cytotoxic effects as a result of an increase in the PUR layer thickness. The presented PUR-PVA/TPT-PUR nanofibers appear to be promising carriers of active TPT lactone that could be useful for local cancer therapy.
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Affiliation(s)
- Radka Hobzova
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | - Jakub Sirc
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | - Kusum Shrestha
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | - Barbora Mudrova
- Department of Analytical Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
| | - Zuzana Bosakova
- Department of Analytical Chemistry, Faculty of Science, Charles University, 128 43 Prague, Czech Republic
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
| | | | - Jan Hrabeta
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
| | - Tereza Feglarova
- Department of Pediatric Hematology and Oncology, 2nd Faculty of Medicine, Charles University and Motol University Hospital, 150 06 Prague, Czech Republic
| | - Ana-Irina Cocarta
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, 162 06 Prague, Czech Republic
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Shen C, Yang Z, Rao J, Wu J, Sun C, Sun C, Wu D, Chen K. Chlorogenic acid-loaded sandwich-structured nanofibrous film developed by solution blow spinning: Characterization, release behavior and antimicrobial activity. Food Packag Shelf Life 2022. [DOI: 10.1016/j.fpsl.2022.100854] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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8
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Wang Q, Chen W, Zhu W, McClements DJ, Liu X, Liu F. A review of multilayer and composite films and coatings for active biodegradable packaging. NPJ Sci Food 2022; 6:18. [PMID: 35277514 PMCID: PMC8917176 DOI: 10.1038/s41538-022-00132-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Accepted: 02/09/2022] [Indexed: 01/14/2023] Open
Abstract
Active biodegradable packaging are being developed from biodegradable biopolymers which may solve the environmental problems caused by petroleum-based materials (plastics), as well as improving the shelf life, quality, nutritional profile, and safety of packaged food. The functional performance of active ingredients in biodegradable packaging can be extended by controlling their release profiles. This can be achieved by incorporating active ingredients in sandwich-structured packaging including multilayer and composite packaging. In multilayer materials, the release profile can be controlled by altering the type, structure, and thickness of the different layers. In composite materials, the release profile can be manipulated by altering the interactions of active ingredients with the surrounding biopolymer matrix. This article reviews the preparation, properties, and applications of multilayer and composite packaging for controlling the release of active ingredients. Besides, the basic theory of controlled release is also elaborated, including diffusion, swelling, and biodegradation. Mathematical models are presented to describe and predict the controlled release of active ingredients from thin films, which may help researchers design packaging materials with improved functional performance.
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Affiliation(s)
- Qiankun Wang
- College of Food Science and Engineering, Northwest A&F University, 712100, Yangling, Shaanxi, PR China
| | - Wenzhang Chen
- College of Food Science and Engineering, Northwest A&F University, 712100, Yangling, Shaanxi, PR China
| | - Wenxin Zhu
- College of Food Science and Engineering, Northwest A&F University, 712100, Yangling, Shaanxi, PR China
| | | | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, 712100, Yangling, Shaanxi, PR China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, 712100, Yangling, Shaanxi, PR China.
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9
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Vascular Graft Infections: An Overview of Novel Treatments Using Nanoparticles and Nanofibers. FIBERS 2022. [DOI: 10.3390/fib10020012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Vascular disease in elderly patients is a growing health concern, with an estimated prevalence of 15–20% in patients above 70 years old. Current treatment for vascular diseases requires the use of a vascular graft (VG) to revascularize lower or upper extremities, create dialysis access, treat aortic aneurysms, and repair dissection. However, postoperative infection is a major complication associated with the use of these VG, often necessitating several operations to achieve complete or partial graft excision, vascular coverage, and extra-anatomical revascularization. There is also a high risk of morbidity, mortality, and limb loss. Therefore, it is important to develop a method to prevent or reduce the incidence of these infections. Numerous studies have investigated the efficacy of antibiotic- and antiseptic-impregnated grafts. In comparison to these traditional methods of creating antimicrobial grafts, nanotechnology enables researchers to design more efficient VG. Nanofibers and nanoparticles have a greater surface area compared to bulk materials, allowing for more efficient encapsulation of antibiotics and better control over their temporo-spatial release. The disruptive potential of nanofibers and nanoparticles is exceptional, and they could pave the way for a new generation of prosthetic VG. This review aims to discuss how nanotechnology is shaping the future of cardiovascular-related infection management.
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Patil NA, Gore PM, Jaya Prakash N, Govindaraj P, Yadav R, Verma V, Shanmugarajan D, Patil S, Kore A, Kandasubramanian B. Needleless electrospun phytochemicals encapsulated nanofibre based 3-ply biodegradable mask for combating COVID-19 pandemic. CHEMICAL ENGINEERING JOURNAL (LAUSANNE, SWITZERLAND : 1996) 2021; 416:129152. [PMID: 33654455 PMCID: PMC7907737 DOI: 10.1016/j.cej.2021.129152] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 02/11/2021] [Accepted: 02/22/2021] [Indexed: 05/09/2023]
Abstract
The emergence of COVID-19 pandemic has severely affected human health and world economies. According to WHO guidelines, continuous use of face mask is mandatory for personal protection for restricting the spread of bacteria and virus. Here, we report a 3-ply cotton-PLA-cotton layered biodegradable face-mask containing encapsulated phytochemicals in the inner-filtration layer. The nano-fibrous PLA filtration layer was fabricated using needleless electrospinning of PLA & phytochemical-based herbal-extracts. This 3-layred face mask exhibits enhanced air permeability with a differential pressure of 35.78 Pa/cm2 and superior bacterial filtration efficiency of 97.9% compared to conventional face masks. Close-packed mesh structure of the nano-fibrous mat results in effective adsorption of particulate matter, aerosol particles, and bacterial targets deep inside the filtration layer. The outer hydrophobic layer of mask exhibited effective blood splash resistance up to a distance of 30 cm, ensuring its utilization for medical practices. Computational analysis of constituent phytochemicals using the LibDock algorithm predicted inhibitory activity of chemicals against the protein structured bacterial sites. The computational analysis projected superior performance of phytochemicals considering the presence of stearic acid, oleic acid, linoleic acid, and Arachidic acid exhibiting structural complementarity to inhibit targeted bacterial interface. Natural cotton fibers and PLA bio-polymer demonstrated promising biodegradable characteristics in the presence of in-house cow-dung based biodegradation slurry. Addition of jaggery to the slurry elevated the biodegradation performance, resulting in increment of change of weight from 07% to 12%. The improved performance was attributed to the increased sucrose content in biodegradation slurry, elevating the bacterial growth in the slurry. An innovative face mask has shown promising results for utilization in day-to-day life and medical frontline workers, considering the post-pandemic environmental impacts.
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Affiliation(s)
- Nikhil Avinash Patil
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
| | - Prakash Macchindra Gore
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3216, Victoria, Australia
| | - Niranjana Jaya Prakash
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
| | - Premika Govindaraj
- Materials Science and Engineering at the Factory of Future - Swinburne University of Technology, Hawthorn 3122, Victoria, Australia
| | - Ramdayal Yadav
- Institute for Frontier Materials, Deakin University, Waurn Ponds Campus, Geelong 3216, Victoria, Australia
| | - Vivek Verma
- Synthesis and Solid State Pharmaceutical Centre, Department of Chemical Sciences, Bernal Institute, University of Limerick, V94T9PX Limerick, Ireland
| | - Dhivya Shanmugarajan
- Department of Life Sciences, Altem Technologies, Platinum Partner of Dassault Systemes, Bangalore 560095, Karnataka, India
| | - Shivanand Patil
- Siddheshwar Techtessile Pvt. Ltd., Kolhapur 416012, Maharashtra, India
| | - Abhay Kore
- Siddheshwar Techtessile Pvt. Ltd., Kolhapur 416012, Maharashtra, India
| | - Balasubramanian Kandasubramanian
- Nanofibre & Nano Surface Texturing Laboratory, Department of Metallurgical and Materials Engineering, Defence Institute of Advanced Technology, Ministry of Defence, Girinagar, Pune 411025, Maharashtra, India
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11
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Ahmad Wsoo M, Izwan Abd Razak S, Shahir S, Ahmed Abdullah Al‐Moalemi H, Rafiq Abdul Kadir M, Hasraf Mat Nayan N. Development of prolonged drug delivery system using electrospun cellulose acetate/polycaprolactone nanofibers: Future subcutaneous implantation. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5375] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mohammed Ahmad Wsoo
- Department of Biosciences, Faculty of Science Universiti Teknologi Malaysia Skudai Malaysia
- Department of Chemistry, College of Science University of Raparin Rania Iraq
| | - Saiful Izwan Abd Razak
- BioInspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
- Centre for Advanced Composite Materials, Universiti Teknologi Malaysia Skudai Malaysia
| | - Shafinaz Shahir
- Department of Biosciences, Faculty of Science Universiti Teknologi Malaysia Skudai Malaysia
| | | | - Mohammed Rafiq Abdul Kadir
- BioInspired Device and Tissue Engineering Research Group, School of Biomedical Engineering and Health Sciences, Faculty of Engineering Universiti Teknologi Malaysia Skudai Malaysia
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12
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Vitamin D 3-loaded electrospun cellulose acetate/polycaprolactone nanofibers: Characterization, in-vitro drug release and cytotoxicity studies. Int J Biol Macromol 2021; 181:82-98. [PMID: 33771547 DOI: 10.1016/j.ijbiomac.2021.03.108] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/16/2021] [Accepted: 03/19/2021] [Indexed: 01/19/2023]
Abstract
Vitamin D deficiency is now a global health problem; despite several drug delivery systems for carrying vitamin D due to low bioavailability and loss bioactivity. Developing a new drug delivery system to deliver vitamin D3 is a strong incentive in the current study. Hence, an implantable drug delivery system (IDDS) was developed from the electrospun cellulose acetate (CA) and ε-polycaprolactone (PCL) nanofibrous membrane, in which the core of implants consists of vitamin D3-loaded CA nanofiber (CAVD) and enclosed in a thin layer of the PCL membrane (CAVD/PCL). CA nanofibrous mat loaded with vitamin D3 at the concentrations of 6, 12, and 20% (w/w) of vitamin D3 were produced using electrospinning. The smooth and bead-free fibers with diameters ranged from 324 to 428 nm were obtained. The fiber diameters increased with an increase in vitamin D3 content. The controlled drug release profile was observed over 30-days, which fit with the zero-order model (R2 > 0.96) in the first stage. The mechanical properties of IDDS were improved. Young's modulus and tensile strength of CAVD/PCL (dry) were161 ± 14 and 13.07 ± 2.5 MPa, respectively. CA and PCL nanofibers are non-cytotoxic based on the results of the in-vitro cytotoxicity studies. This study can further broaden in-vivo study and provide a reference for developing a new IDDS to carry vitamin D3 in the future.
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Mandpe P, Prabhakar B, Shende P. Role of Liposomes-Based Stem Cell for Multimodal Cancer Therapy. Stem Cell Rev Rep 2020; 16:103-117. [PMID: 31786749 DOI: 10.1007/s12015-019-09933-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The utilization of stem cells as novel carriers to target tissues or organs of interest is a challenging task in delivery system. The composite cellular delivery with diverse signalling molecules as therapeutics increases stem cell capability and possesses the promising potential to augment, modify or commence localized or systemic restoration for vital applications in regenerative medicine. The inherent potential of stem cells to immigrate and reside at wounded site facilitates transportation of genes, polypeptides or nanosized molecules. Liposomes are micro- to nano-lipidic vesicles formed in aqueous solutions to encapsulate complex hydrophilic and lipophilic chemical substances. Moreover, these novel nanocarriers provide safer and efficient delivery of bioactives together with their potential applications in vaccine production, cosmeceuticals, imaging and diagnostic purpose. Tissue engineering promotes rejuvenation process and involves the synchronized utilization of cells with 3D bio-material scaffolds to fabricate living structures. This strategy requires regulated stimulus of cultured cells through combined mechanical signals and bioactive agents. This review highlights and summarizes the mechanism involved in stem cell migration, strategies to enhance homing, safety and efficacy studies of stem cells in various disease models and discusses the potential role of liposomes in prolonged and localized delivery of bioactives for regenerative medicines and tissue engineering techniques. Graphical Abstract Role of PEGylated liposomes in cancer stem cell therapy.
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Affiliation(s)
- Pankaj Mandpe
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta road, Vile Parle (W), Mumbai, India
| | - Bala Prabhakar
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta road, Vile Parle (W), Mumbai, India
| | - Pravin Shende
- Shobhaben Pratapbhai Patel School of Pharmacy and Technology Management, SVKM'S NMIMS, V. L. Mehta road, Vile Parle (W), Mumbai, India.
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14
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A Mini-Review: Needleless Electrospinning of Nanofibers for Pharmaceutical and Biomedical Applications. Processes (Basel) 2020. [DOI: 10.3390/pr8060673] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Electrospinning (ES) is a convenient and versatile method for the fabrication of nanofibers and has been utilized in many fields including pharmaceutical and biomedical applications. Conventional ES uses a needle spinneret for the generation of nanofibers and is associated with many limitations and drawbacks (i.e., needle clogging, limited production capacity, and low yield). Needleless electrospinning (NLES) has been proposed to overcome these problems. Within the last two decades (2004–2020), many research articles have been published reporting the use of NLES for the fabrication of polymeric nanofibers intended for drug delivery and biomedical tissue engineering applications. The objective of the present mini-review article is to elucidate the potential of NLES for designing such novel nanofibrous drug delivery systems and tissue engineering constructs. This paper also gives an overview of the key NLES approaches, including the most recently introduced NLES method: ultrasound-enhanced electrospinning (USES). The technologies underlying NLES systems and an evaluation of electrospun nanofibers are presented. Even though NLES is a promising approach for the industrial production of nanofibers, it is a multivariate process, and more research work is needed to elucidate its full potential and limitations.
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15
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Wang P, Li Y, Zhang C, Feng F, Zhang H. Sequential electrospinning of multilayer ethylcellulose/gelatin/ethylcellulose nanofibrous film for sustained release of curcumin. Food Chem 2020; 308:125599. [DOI: 10.1016/j.foodchem.2019.125599] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 10/25/2022]
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Tyo KM, Lasnik AB, Zhang L, Mahmoud M, Jenson AB, Fuqua JL, Palmer KE, Steinbach-Rankins JM. Sustained-release Griffithsin nanoparticle-fiber composites against HIV-1 and HSV-2 infections. J Control Release 2020; 321:84-99. [PMID: 32035194 DOI: 10.1016/j.jconrel.2020.02.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 02/01/2020] [Accepted: 02/03/2020] [Indexed: 02/07/2023]
Abstract
Human immunodeficiency virus (HIV-1) and herpes simplex virus 2 (HSV-2) affect hundreds of millions of people worldwide. The antiviral lectin, Griffithsin (GRFT), has been shown to be both safe and efficacious against HSV-2 and HIV-1 infections in vivo. The goal of this work was to develop a multilayered nanoparticle (NP)-electrospun fiber (EF) composite to provide sustained-release of GRFT, and to examine its safety and efficacy in a murine model of lethal HSV-2 infection. Composites were fabricated from polycaprolactone (PCL) fibers surrounding polyethylene oxide (PEO) fibers that incorporated methoxy poly(ethylene glycol)-b-poly(lactide-co-glycolide) (mPEG-PLGA) GRFT NPs. GRFT loading and release were determined via ELISA, showing that NP-EF composites achieved high GRFT loading, and provided sustained-release of GRFT for up to 90 d. The in vitro efficacy of GRFT NP-EFs was assessed using HIV-1 pseudovirus assays, demonstrating complete in vitro protection against HIV-1 infection. Additionally, sustained-release NP-EFs, administered 24 h prior to infection, prevented against a lethal dose of HSV-2 infection in a murine model. In parallel, histology and cytokine expression from murine reproductive tracts and vaginal lavages collected 24 and 72 h post-administration were similar to untreated mice, suggesting that NP-EF composites may be a promising and safe sustained-delivery platform to prevent HSV-2 infection. Future work will evaluate the ability to provide prolonged protection against multiple virus challenges, and different administration times with respect to infection.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Amanda B Lasnik
- Center for Predictive Medicine, Louisville, KY, United States
| | - Longyun Zhang
- Center for Predictive Medicine, Louisville, KY, United States; Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States
| | - Mohamed Mahmoud
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Alfred B Jenson
- James Graham Brown Cancer Center, University of Louisville School of Medicine, University of Louisville, Louisville, KY, United States
| | - Joshua L Fuqua
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States
| | - Kenneth E Palmer
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States; James Graham Brown Cancer Center, University of Louisville School of Medicine, University of Louisville, Louisville, KY, United States; Department of Microbiology and Immunology, School of Medicine, University of Louisville, KY, United States
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, KY, United States; Center for Predictive Medicine, Louisville, KY, United States; James Graham Brown Cancer Center, University of Louisville School of Medicine, University of Louisville, Louisville, KY, United States; Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY, United States; Department of Microbiology and Immunology, School of Medicine, University of Louisville, KY, United States.
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17
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Rutel IB, Stoner J, Kota P, Dormer K, Alleman A. Orientation of the round window membrane: A normative study of inner ear anatomical orientation using 2D projections of 3D volumes. Anat Rec (Hoboken) 2019; 303:2847-2856. [PMID: 31815368 DOI: 10.1002/ar.24327] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 10/18/2019] [Accepted: 10/28/2019] [Indexed: 12/12/2022]
Abstract
INTRODUCTION Orientation of the Round Window Membrane (RWM) is an important metric to establish if utilized as a potential access for targeted delivery of magnetically guided nanomedicines to the inner ear. Orientation with respect to an internal reference frame (such as the planes defined by the semicircular-canals [SCC]) may provide an internally consistent basis if the basis is orthogonal and consistent (from patient to patient). MATERIALS AND METHODS Utilizing a micro computed tomography (CT), 20 temporal bones are scanned for anatomical information. The scanned data sets are loaded into an imaging program to provide volumetric reconstruction and segmentation. Volumetric models of the anatomical relationships between the inner ear SCC and the RWM are utilized to get normative projection angle information and are statistically analyzed. RESULTS Micro-CT shows low to moderate reliability for reproducibility, intraobserver, and interobserver measurements; in addition, it provides mean values (±SD) for the various measured angles. The combined mean angular values for surface orientation of the RWM, with respect to the SCC basis (quasi-orthogonal spherical coordinate system), was 57.0° ± 20.9°as measured from the line defining the posterior SCC plane in the direction of the line defining the superior SCC plane. An angle of 65.2° ± 19.1° was measured for an angle away from the line defining the horizontal SCC plane.
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Affiliation(s)
- Isaac B Rutel
- Department of Radiological Sciences, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, Oklahoma
| | - Julie Stoner
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, Oklahoma
| | - Pravina Kota
- Department of Biostatistics and Epidemiology, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, Oklahoma
| | - Kenneth Dormer
- Department of Community and Global Health, Campbell University, Jerry M. Wallace School of Osteopathic Medicine, Lillington, North Carolina
| | - Anthony Alleman
- Department of Radiological Sciences, University of Oklahoma Health Sciences Center (OUHSC), Oklahoma City, Oklahoma
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18
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Osanloo M, Arish J, Sereshti H. Developed methods for the preparation of electrospun nanofibers containing plant-derived oil or essential oil: a systematic review. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-019-03042-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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19
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Hobzova R, Hampejsova Z, Cerna T, Hrabeta J, Venclikova K, Jedelska J, Bakowsky U, Bosakova Z, Lhotka M, Vaculin S, Franek M, Steinhart M, Kovarova J, Michalek J, Sirc J. Poly(d,l-lactide)/polyethylene glycol micro/nanofiber mats as paclitaxel-eluting carriers: preparation and characterization of fibers, in vitro drug release, antiangiogenic activity and tumor recurrence prevention. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:982-993. [DOI: 10.1016/j.msec.2019.01.046] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 12/11/2018] [Accepted: 01/10/2019] [Indexed: 12/16/2022]
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20
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Tyo KM, Minooei F, Curry KC, NeCamp SM, Graves DL, Fried JR, Steinbach-Rankins JM. Relating Advanced Electrospun Fiber Architectures to the Temporal Release of Active Agents to Meet the Needs of Next-Generation Intravaginal Delivery Applications. Pharmaceutics 2019; 11:E160. [PMID: 30987206 PMCID: PMC6523330 DOI: 10.3390/pharmaceutics11040160] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 03/28/2019] [Accepted: 03/30/2019] [Indexed: 02/07/2023] Open
Abstract
Electrospun fibers have emerged as a relatively new delivery platform to improve active agent retention and delivery for intravaginal applications. While uniaxial fibers have been explored in a variety of applications including intravaginal delivery, the consideration of more advanced fiber architectures may offer new options to improve delivery to the female reproductive tract. In this review, we summarize the advancements of electrospun coaxial, multilayered, and nanoparticle-fiber architectures utilized in other applications and discuss how different material combinations within these architectures provide varied durations of release, here categorized as either transient (within 24 h), short-term (24 h to one week), or sustained (beyond one week). We seek to systematically relate material type and fiber architecture to active agent release kinetics. Last, we explore how lessons derived from these architectures may be applied to address the needs of future intravaginal delivery platforms for a given prophylactic or therapeutic application. The overall goal of this review is to provide a summary of different fiber architectures that have been useful for active agent delivery and to provide guidelines for the development of new formulations that exhibit release kinetics relevant to the time frames and the diversity of active agents needed in next-generation multipurpose applications.
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Affiliation(s)
- Kevin M Tyo
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
| | - Farnaz Minooei
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Keegan C Curry
- Department of Biology, University of Louisville, Louisville, KY 40292, USA.
| | - Sarah M NeCamp
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Danielle L Graves
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Joel R Fried
- Department of Chemical Engineering, University of Louisville, Louisville, KY 40292, USA.
| | - Jill M Steinbach-Rankins
- Department of Pharmacology and Toxicology, School of Medicine, University of Louisville, Louisville, KY 40202, USA.
- Center for Predictive Medicine, Louisville, KY 40202, USA.
- Department of Bioengineering, Speed School of Engineering, University of Louisville, Louisville, KY 40292, USA.
- Department of Microbiology and Immunology, School of Medicine, University of Louisville, Louisville, KY 40292, USA.
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21
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Bazbouz MB, Tronci G. Two-layer Electrospun System Enabling Wound Exudate Management and Visual Infection Response. SENSORS (BASEL, SWITZERLAND) 2019; 19:E991. [PMID: 30813559 PMCID: PMC6427107 DOI: 10.3390/s19050991] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/11/2019] [Accepted: 02/17/2019] [Indexed: 02/04/2023]
Abstract
The spread of antimicrobial resistance calls for chronic wound management devices that can engage with the wound exudate and signal infection by prompt visual effects. Here, the manufacture of a two-layer fibrous device with independently-controlled exudate management capability and visual infection responsivity was investigated by sequential free surface electrospinning of poly(methyl methacrylate-co-methacrylic acid) (PMMA-co-MAA) and poly(acrylic acid) (PAA). By selecting wound pH as infection indicator, PMMA-co-MAA fibres were encapsulated with halochromic bromothymol blue (BTB) to trigger colour changes at infection-induced alkaline pH. Likewise, the exudate management capability was integrated via the synthesis of a thermally-crosslinked network in electrospun PAA layer. PMMA-co-MAA fibres revealed high BTB loading efficiency (>80 wt.%) and demonstrated prompt colour change and selective dye release at infected-like media (pH > 7). The synthesis of the thermally-crosslinked PAA network successfully enabled high water uptake (WU = 1291 ± 48 - 2369 ± 34 wt.%) and swelling index (SI = 272 ± 4 - 285 ± 3 a.%), in contrast to electrospun PAA controls. This dual device functionality was lost when the same building blocks were configured in a single-layer mesh of core-shell fibres, whereby significant BTB release (~70 wt.%) was measured even at acidic pH. This study therefore demonstrates how the fibrous configuration can be conveniently manipulated to trigger structure-induced functionalities critical to chronic wound management and monitoring.
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Affiliation(s)
- Mohamed Basel Bazbouz
- Textile Technology Research Group, School of Design, University of Leeds, Leeds LS2 9JT, UK.
| | - Giuseppe Tronci
- Textile Technology Research Group, School of Design, University of Leeds, Leeds LS2 9JT, UK.
- Biomaterials and Tissue Engineering Research Group, School of Dentistry, St. James's University Hospital, University of Leeds, Leeds LS9 7TF, UK.
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22
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Leung CM, Dhand C, Dwivedi N, Xiao A, Ong ST, Chalasani MLS, Sriram H, Balakrishnan Y, Dolatshahi-Pirouz A, Orive G, Beuerman RW, Ramakrishna S, Verma NK, Lakshminarayanan R. Combating Microbial Contamination with Robust Polymeric Nanofibers: Elemental Effect on the Mussel-Inspired Cross-Linking of Electrospun Gelatin. ACS APPLIED BIO MATERIALS 2018; 2:807-823. [DOI: 10.1021/acsabm.8b00666] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Chak Ming Leung
- Department of Biomedical Engineering, National University of Singapore, Singapore 117581, Singapore
| | - Chetna Dhand
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore 169856, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
| | - Neeraj Dwivedi
- Department of Electrical and Computer Engineering, National University of Singapore, 3 Engineering Drive 3, Singapore 117583, Singapore
| | - Amy Xiao
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Seow Theng Ong
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Madhavi Latha Somaraju Chalasani
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Harini Sriram
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore 169856, Singapore
| | - Yamini Balakrishnan
- Department of Biomedical Engineering, National University of Singapore, Singapore 117581, Singapore
| | - Alireza Dolatshahi-Pirouz
- Technical University of Denmark, DTU Nanotech, Center for Intestinal Absorption and Transport of Biopharmaceutical, 2800 Kgs, Denmark
| | - Gorka Orive
- NanoBioCel Group, Laboratory of Pharmaceutics, School of Pharmacy, University of the Basque Country UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
- Biomedical Research
Networking Centre in Bioengineering, Biomaterials, and Nanomedicine
(CIBER-BBN) Vitoria-Gasteiz, Spain
- University Institute for Regenerative Medicine and Oral Implantology − UIRMI, Vitoria, Spain, BTI Biotechnology Institute, Vitoria, Spain
| | - Roger Wilmer Beuerman
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore 169856, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, 2 Engineering Drive 3, Singapore 117576, Singapore
| | - Navin Kumar Verma
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore 169856, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921, Singapore
| | - Rajamani Lakshminarayanan
- Anti-Infectives Research Group, Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore 169856, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Graduate Medical School, Singapore 169857, Singapore
- Skin Research Institute of Singapore, Clinical Science Building, 11 Mandalay Road, Singapore 308232, Singapore
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Kimna C, Tamburaci S, Tihminlioglu F. Novel zein‐based multilayer wound dressing membranes with controlled release of gentamicin. J Biomed Mater Res B Appl Biomater 2018; 107:2057-2070. [DOI: 10.1002/jbm.b.34298] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/24/2018] [Accepted: 12/01/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Ceren Kimna
- Department of Chemical Engineeringİzmir Institute of Technology Urla, 35430 İzmir Turkey
| | - Sedef Tamburaci
- Department of Chemical Engineeringİzmir Institute of Technology Urla, 35430 İzmir Turkey
- Graduate Program of Biotechnology and Bioengineeringİzmir Institute of Technology Urla, 35430 İzmir Turkey
| | - Funda Tihminlioglu
- Department of Chemical Engineeringİzmir Institute of Technology Urla, 35430 İzmir Turkey
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24
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Ardekani NT, Khorram M, Zomorodian K, Yazdanpanah S, Veisi H, Veisi H. Evaluation of electrospun poly (vinyl alcohol)-based nanofiber mats incorporated with Zataria multiflora essential oil as potential wound dressing. Int J Biol Macromol 2018; 125:743-750. [PMID: 30543881 DOI: 10.1016/j.ijbiomac.2018.12.085] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/04/2018] [Accepted: 12/08/2018] [Indexed: 02/07/2023]
Abstract
Infections, especially those caused by multi-drug resistant pathogens, result in serious problems in wound healing process. In this study, Zataria multiflora (ZM) essential oil, as a strong natural antimicrobial agent, is incorporated into poly (vinyl alcohol)-based nanofiber mats to fabricate a novel wound dressing. Different amounts of ZM essential oil (0, 2, 5 and 10% (v/v)) were incorporated into chitosan/poly(vinyl alcohol)/gelatin (CS/PVA/Gel) solutions and then were successfully electrospun into beadless and uniform fibers with 95 ± 14, 154 ± 27, 187 ± 40 and 218 ± 58 nm in diameters, respectively. The produced nanofiber mats (CS/PVA/Gel/ZM) were chemically crosslinked by glutaraldehyde vapor. The chemical compositions of ZM essential oil and nanofiber mats were analyzed using Gas Chromatography-Mass Spectrometry (GC-MS) and Fourier Transform Infrared Spectroscopy (FTIR), respectively. The antimicrobial activity of the CS/PVA/Gel/ZM nanofiber mats was determined by the AATCC100 method. The nanofiber mat loaded with 10% of ZM essential oil completely inhibited the growth of Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans after 24 h of incubation. Swelling investigations showed that the produced nanofibers have a substantial ability to take up water, in the range of 400-900%. Mechanical properties of the nanofiber mats were studied by tensile testing. Furthermore, they were found to be non-toxic by biocompatibility assays on mouse fibroblast (L929) cells. The obtained results have demonstrated that CS/PVA/Gel nanofiber mats, loaded with ZM essential oil, are promising alternatives to conventional wound dressings.
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Affiliation(s)
| | - Mohammad Khorram
- School of Chemical and Petroleum Engineering, Shiraz University, Shiraz, Iran.
| | - Kamiar Zomorodian
- Basic Sciences in Infectious Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Somayeh Yazdanpanah
- Departments of Medical Mycology and Parasitology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Veisi
- Department of Chemistry, Payame Noor university, Tehran, Iran
| | - Hojat Veisi
- Department of Chemistry, Payame Noor university, Tehran, Iran
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25
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Abdul Khodir WKW, Abdul Razak AH, Ng MH, Guarino V, Susanti D. Encapsulation and Characterization of Gentamicin Sulfate in the Collagen Added Electrospun Nanofibers for Skin Regeneration. J Funct Biomater 2018; 9:jfb9020036. [PMID: 29783681 PMCID: PMC6023495 DOI: 10.3390/jfb9020036] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 04/26/2018] [Accepted: 05/07/2018] [Indexed: 12/31/2022] Open
Abstract
In the current practice, the clinical use of conventional skin substitutes such as autogenous skin grafts have shown several problems, mainly with respect to limited sources and donor site morbidity. In order to overcome these limitations, the use of smart synthetic biomaterials is tremendously diffusing as skin substitutes. Indeed, engineered skin grafts or analogues frequently play an important role in the treatment of chronic skin wounds, by supporting the regeneration of newly formed tissue, and at the same time preventing infections during the long-term treatment. In this context, natural proteins such as collagen—natively present in the skin tissue—embedded in synthetic polymers (i.e., PCL) allow the development of micro-structured matrices able to mimic the functions and to structure of the surrounding extracellular matrix. Moreover, the encapsulation of drugs, such as gentamicin sulfate, also improves the bioactivity of nanofibers, due to the efficient loading and a controlled drug release towards the site of interest. Herein, we have done a preliminary investigation on the capability of gentamicin sulfate, loaded into collagen-added nanofibers, for the controlled release in local infection treatments. Experimental studies have demonstrated that collagen added fibers can be efficaciously used to administrate gentamicin for 72 h without any toxic in vitro response, thus emerging as a valid candidate for the therapeutic treatment of infected wounds.
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Affiliation(s)
- Wan Khartini Wan Abdul Khodir
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
| | - Abdul Hakim Abdul Razak
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
| | - Min Hwei Ng
- Tissue Engineering Centre, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur 56000, Malaysia.
| | - Vincenzo Guarino
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, Mostra d'Oltremare, Pad. 20, V. le Kennedy 54, 80125 Naples, Italy.
| | - Deny Susanti
- Department of Chemistry, Kulliyyah of Science, International Islamic University of Malaysia Kuantan Campus, Bandar Indera Mahkota, Kuantan 25200, Pahang, Malaysia.
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Monteiro N, Yelick PC. Advances and perspectives in tooth tissue engineering. J Tissue Eng Regen Med 2017; 11:2443-2461. [PMID: 27151766 PMCID: PMC6625321 DOI: 10.1002/term.2134] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 11/30/2015] [Accepted: 12/10/2015] [Indexed: 12/20/2022]
Abstract
Bio-engineered teeth that can grow and remodel in a manner similar to that of natural teeth have the potential to serve as permanent replacements to the currently used prosthetic teeth, such as dental implants. A major challenge in designing functional bio-engineered teeth is to mimic both the structural and anisotropic mechanical characteristics of the native tooth. Therefore, the field of dental and whole tooth regeneration has advanced towards the molecular and nanoscale design of bio-active, biomimetic systems, using biomaterials, drug delivery systems and stem cells. The focus of this review is to discuss recent advances in tooth tissue engineering, using biomimetic scaffolds that provide proper architectural cues, exhibit the capacity to support dental stem cell proliferation and differentiation and sequester and release bio-active agents, such as growth factors and nucleic acids, in a spatiotemporal controlled manner. Although many in vitro and in vivo studies on tooth regeneration appear promising, before tooth tissue engineering becomes a reality for humans, additional research is needed to perfect methods that use adult human dental stem cells, as opposed to embryonic dental stem cells, and to devise the means to generate bio-engineered teeth of predetermined size and shape. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Nelson Monteiro
- Department of Oral and Maxillofacial Pathology, Tufts University, Boston, MA, USA
| | - Pamela C. Yelick
- Department of Oral and Maxillofacial Pathology, Tufts University, Boston, MA, USA
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Sirc J, Hampejsova Z, Trnovska J, Kozlik P, Hrib J, Hobzova R, Zajicova A, Holan V, Bosakova Z. Cyclosporine A Loaded Electrospun Poly(D,L-Lactic Acid)/Poly(Ethylene Glycol) Nanofibers: Drug Carriers Utilizable in Local Immunosuppression. Pharm Res 2017; 34:1391-1401. [PMID: 28405914 DOI: 10.1007/s11095-017-2155-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/31/2017] [Indexed: 02/07/2023]
Abstract
PURPOSE The present study aims to prepare poly(D,L-lactic acid) (PLA) nanofibers loaded by the immunosuppressant cyclosporine A (CsA, 10 wt%). Amphiphilic poly(ethylene glycol)s (PEG) additives were used to modify the hydrophobic drug release kinetics. METHODS Four types of CsA-loaded PLA nanofibrous carriers varying in the presence and molecular weight (MW) of PEG (6, 20 and 35 kDa) were prepared by needleless electrospinning. The samples were extracted for 144 h in phosphate buffer saline or tissue culture medium. A newly developed and validated LC-MS/MS method was utilized to quantify the amount of released CsA from the carriers. In vitro cell experiments were used to evaluate biological activity. RESULTS Nanofibers containing 15 wt% of PEG showed improved drug release characteristics; significantly higher release rates were achieved in initial part of experiment (24 h). The highest released doses of CsA were obtained from the nanofibers with PEG of the lowest MW (6 kDa). In vitro experiments on ConA-stimulated spleen cells revealed the biological activity of the released CsA for the whole study period of 144 h and nanofibers containing PEG with the lowest MW exhibited the highest impact (inhibition). CONCLUSIONS The addition of PEG of a particular MW enables to control CsA release from PLA nanofibrous carriers. The biological activity of CsA-loaded PLA nanofibers with PEG persists even after 144 h of previous extraction. Prepared materials are promising for local immunosuppression in various medical applications.
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Affiliation(s)
- Jakub Sirc
- Department of Polymer Networks and Gels, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 162 06, Prague 6, Czech Republic
| | - Zuzana Hampejsova
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Jana Trnovska
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Petr Kozlik
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic
| | - Jakub Hrib
- Department of Polymer Networks and Gels, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 162 06, Prague 6, Czech Republic
| | - Radka Hobzova
- Department of Polymer Networks and Gels, Institute of Macromolecular Chemistry, Czech Academy of Sciences, Heyrovsky Sq. 2, 162 06, Prague 6, Czech Republic
| | - Alena Zajicova
- Department of Transplantation Immunology, Institute of Experimental Medicine, Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
| | - Vladimir Holan
- Department of Transplantation Immunology, Institute of Experimental Medicine, Czech Academy of Sciences, Videnska 1083, 142 20, Prague 4, Czech Republic
| | - Zuzana Bosakova
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43, Prague 2, Czech Republic.
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Hassiba AJ, El Zowalaty ME, Webster TJ, Abdullah AM, Nasrallah GK, Khalil KA, Luyt AS, Elzatahry AA. Synthesis, characterization, and antimicrobial properties of novel double layer nanocomposite electrospun fibers for wound dressing applications. Int J Nanomedicine 2017; 12:2205-2213. [PMID: 28356737 PMCID: PMC5367563 DOI: 10.2147/ijn.s123417] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Herein, novel hybrid nanomaterials were developed for wound dressing applications with antimicrobial properties. Electrospinning was used to fabricate a double layer nanocomposite nanofibrous mat consisting of an upper layer of poly(vinyl alcohol) and chitosan loaded with silver nanoparticles (AgNPs) and a lower layer of polyethylene oxide (PEO) or polyvinylpyrrolidone (PVP) nanofibers loaded with chlorhexidine (as an antiseptic). The top layer containing AgNPs, whose purpose was to protect the wound site against environmental germ invasion, was prepared by reducing silver nitrate to its nanoparticulate form through interaction with chitosan. The lower layer, which would be in direct contact with the injured site, contained the antibiotic drug needed to avoid wound infections which would otherwise interfere with the healing process. Initially, the upper layer was electrospun, followed sequentially by electrospinning the second layer, creating a bilayer nanofibrous mat. The morphology of the nanofibrous mats was studied by scanning electron microscopy and transmission electron microscopy, showing successful nanofiber production. X-ray diffraction confirmed the reduction of silver nitrate to AgNPs. Fourier transform infrared spectroscopy showed a successful incorporation of the material used in the produced nanofibrous mats. Thermal studies carried out by thermogravimetric analysis indicated that the PVP–drug-loaded layer had the highest thermal stability in comparison to other fabricated nanofibrous mats. Antimicrobial activities of the as-synthesized nanofibrous mats against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, and Candida albicans were determined using disk diffusion method. The results indicated that the PEO–drug-loaded mat had the highest antibacterial activity, warranting further attention for numerous wound-healing applications.
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Affiliation(s)
- Alaa J Hassiba
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha, Qatar
| | | | - Thomas J Webster
- Department of Chemical Engineering; Department of Bioengineering, Northeastern University, Boston, MA, USA; Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, Saudi Arabia
| | | | - Gheyath K Nasrallah
- Department of Biomedical Science, College of Health Sciences, Biomedical Research Center, Qatar University, Doha, Qatar
| | - Khalil Abdelrazek Khalil
- Department of Mechanical Engineering, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
| | | | - Ahmed A Elzatahry
- Materials Science and Technology Program, College of Arts and Sciences, Qatar University, Doha, Qatar
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Wang J, Zhao W, Wang B, Pei G, Li C. Multilevel-layer-structured polyamide 6/poly(trimethylene terephthalate) nanofibrous membranes for low-pressure air filtration. J Appl Polym Sci 2017. [DOI: 10.1002/app.44716] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jiaona Wang
- College of Material Science and Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Weiwei Zhao
- College of Material Science and Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Bin Wang
- College of Material Science and Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Guangling Pei
- College of Material Science and Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment; Beijing Institute of Fashion Technology; Beijing 100029 China
| | - Congju Li
- College of Material Science and Engineering; Beijing Institute of Fashion Technology; Beijing 100029 China
- Beijing Key Laboratory of Clothing Materials R&D and Assessment; Beijing Institute of Fashion Technology; Beijing 100029 China
- Beijing Institute of Nanoenergy and Nanosystems; Chinese Academy of Sciences; Beijing 100083 China
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Zupančič Š, Sinha-Ray S, Sinha-Ray S, Kristl J, Yarin AL. Long-Term Sustained Ciprofloxacin Release from PMMA and Hydrophilic Polymer Blended Nanofibers. Mol Pharm 2015; 13:295-305. [PMID: 26635214 DOI: 10.1021/acs.molpharmaceut.5b00804] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Nanofibers represent an attractive novel drug delivery system for prolonged and controlled release. However, sustained release of hydrophilic drugs, like ciprofloxacin hydrochloride (CIP), from polymeric nanofibers is not an easy task. The present study investigates the effect of different hydrophobic polymers (PCL and PMMA) alone in monolithic nanofibers or with hydrophilic polymers (PVA, PEO, and chitosan) in blended nanofibers aiming to achieve sustained CIP release. CIP release from PCL nanofibers was 46% and from PMMA just 1.5% over 40 day period. Thus, PMMA holds great promise for modification of CIP release from blended nanofibers. PMMA blends with 10% PEO, PVA, or chitosan were used to electrospin nanofibers from solution in the mixture of acetic and formic acid. These nanofibers exhibited different drug-release profiles: PEO containing nanofiber mats demonstrated high burst effect, chitosan containing mats revealed very slow gradual release, and PVA containing mats yielded smaller burst effect with favorable sustained release. We have also shown that gradual sustain release of antibiotic like CIP can be additionally tuned over 18 days with various blend ratios of PMMA with PVA or chitosan reaching almost 100%. A mathematical model in agreement with the experimental observation revealed that the sustained CIP release from the blended nanofibers corresponded to the two-stage desorption process.
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Affiliation(s)
- Špela Zupančič
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607-7022, United States.,Faculty of Pharmacy, University of Ljubljana , Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Sumit Sinha-Ray
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607-7022, United States
| | - Suman Sinha-Ray
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607-7022, United States.,Corporate Innovation Center, United States Gypsum, 700 US 45N, Libertyville, Illinois 60048, United States.,Department of Materials Science and Engineering, Indian Institute of Technology , Indore, Madhya Pradesh 452017, India
| | - Julijana Kristl
- Faculty of Pharmacy, University of Ljubljana , Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Alexander L Yarin
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago , Chicago, Illinois 60607-7022, United States.,College of Engineering, Korea University , Seoul 02841, South Korea
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Hrib J, Sirc J, Hobzova R, Hampejsova Z, Bosakova Z, Munzarova M, Michalek J. Nanofibers for drug delivery - incorporation and release of model molecules, influence of molecular weight and polymer structure. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:1939-45. [PMID: 26665065 PMCID: PMC4660903 DOI: 10.3762/bjnano.6.198] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 09/14/2015] [Indexed: 05/23/2023]
Abstract
Nanofibers were prepared from polycaprolactone, polylactide and polyvinyl alcohol using Nanospider(TM) technology. Polyethylene glycols with molecular weights of 2 000, 6 000, 10 000 and 20 000 g/mol, which can be used to moderate the release profile of incorporated pharmacologically active compounds, served as model molecules. They were terminated by aromatic isocyanate and incorporated into the nanofibers. The release of these molecules into an aqueous environment was investigated. The influences of the molecular length and chemical composition of the nanofibers on the release rate and the amount of released polyethylene glycols were evaluated. Longer molecules released faster, as evidenced by a significantly higher amount of released molecules after 72 hours. However, the influence of the chemical composition of nanofibers was even more distinct - the highest amount of polyethylene glycol molecules released from polyvinyl alcohol nanofibers, the lowest amount from polylactide nanofibers.
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Affiliation(s)
- Jakub Hrib
- The Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Jakub Sirc
- The Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Radka Hobzova
- The Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
| | - Zuzana Hampejsova
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Albertov 2030, 128 43 Prague 2, Czech Republic
| | - Zuzana Bosakova
- Department of Analytical Chemistry, Faculty of Science, Charles University in Prague, Albertov 2030, 128 43 Prague 2, Czech Republic
| | - Marcela Munzarova
- Nanovia Ltd., Podkrusnohorska 271, 436 03 Litvinov-Chuderin, Czech Republic
| | - Jiri Michalek
- The Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Heyrovsky Sq. 2, 162 06 Prague 6, Czech Republic
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Monteiro N, Martins M, Martins A, Fonseca NA, Moreira JN, Reis RL, Neves NM. Antibacterial activity of chitosan nanofiber meshes with liposomes immobilized releasing gentamicin. Acta Biomater 2015; 18:196-205. [PMID: 25749293 DOI: 10.1016/j.actbio.2015.02.018] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 01/27/2015] [Accepted: 02/18/2015] [Indexed: 01/19/2023]
Abstract
Chitsan (Ch) nanofiber mesh (NFM) is a material with natural characteristics favoring its use in human wound dressing. The present work proposes a gentamicin-loaded liposome immobilized at the surface of Ch NFMs to promote its antibacterial activity. To achieve this purpose, Ch NFMs were functionalized with thiol groups, and gentamicin-loaded liposomes were covalently immobilized by the reaction of the SH groups with maleimide. The maximum concentration of SH groups (55.52±11.19nmolcm(-2)) was obtained at pH 7. A fluorescent dye was covalently bound to the SH groups present at the surface of electrospun Ch NFMs. Their spatial distribution was uniform throughout the NFMs when analyzed by fluorescence microscopy. Gentamicin was successfully encapsulated into the liposomes with an efficiency of 17%. Gentamicin-loaded liposomes were uniformly distributed at the surface of the Ch NFMs and the drug release kinetic showed a sustained release of gentamicin during 16h, achieving a steady state at 24h. The in vitro susceptibility tests confirmed that the gentamicin released from the liposomes immobilized at the surface of electrospun Ch NFM has bactericidal activity against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. The results show that the developed system has promising performance for wound dressing applications, avoiding infections caused by these common pathogens.
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Affiliation(s)
- Nelson Monteiro
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Margarida Martins
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal; IBB-Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Campus de Gualtar, Braga, Portugal.
| | - Albino Martins
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Nuno A Fonseca
- CNC - Center for Neurosciences and Cell Biology, FFUC - Faculty of Pharmacy and University of Coimbra, 3000 Coimbra, Portugal.
| | - João N Moreira
- CNC - Center for Neurosciences and Cell Biology, FFUC - Faculty of Pharmacy and University of Coimbra, 3000 Coimbra, Portugal.
| | - Rui L Reis
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal.
| | - Nuno M Neves
- 3B's Research Group - Biomaterials, Biodegradables and Biomimetics, Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909 Caldas das Taipas, Guimarães, Portugal; ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal.
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Monteiro N, Martins A, Reis RL, Neves NM. Liposomes in tissue engineering and regenerative medicine. J R Soc Interface 2014; 11:20140459. [PMID: 25401172 PMCID: PMC4223894 DOI: 10.1098/rsif.2014.0459] [Citation(s) in RCA: 216] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Accepted: 10/02/2014] [Indexed: 01/13/2023] Open
Abstract
Liposomes are vesicular structures made of lipids that are formed in aqueous solutions. Structurally, they resemble the lipid membrane of living cells. Therefore, they have been widely investigated, since the 1960s, as models to study the cell membrane, and as carriers for protection and/or delivery of bioactive agents. They have been used in different areas of research including vaccines, imaging, applications in cosmetics and tissue engineering. Tissue engineering is defined as a strategy for promoting the regeneration of tissues for the human body. This strategy may involve the coordinated application of defined cell types with structured biomaterial scaffolds to produce living structures. To create a new tissue, based on this strategy, a controlled stimulation of cultured cells is needed, through a systematic combination of bioactive agents and mechanical signals. In this review, we highlight the potential role of liposomes as a platform for the sustained and local delivery of bioactive agents for tissue engineering and regenerative medicine approaches.
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Affiliation(s)
- Nelson Monteiro
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Albino Martins
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui L. Reis
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Nuno M. Neves
- 3B's Research Group—Biomaterials, Biodegradables and Biomimetics Department of Polymer Engineering, University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Zona Industrial da Gandra S. Cláudio do Barco, 4806-909, Caldas das Taipas, Guimarães, Portugal
- ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
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Pishbin F, Mouriño V, Flor S, Kreppel S, Salih V, Ryan MP, Boccaccini AR. Electrophoretic deposition of gentamicin-loaded bioactive glass/chitosan composite coatings for orthopaedic implants. ACS APPLIED MATERIALS & INTERFACES 2014; 6:8796-806. [PMID: 24827466 DOI: 10.1021/am5014166] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Despite their widespread application, metallic orthopaedic prosthesis failure still occurs because of lack of adequate bone-bonding and the incidence of post-surgery infections. The goal of this research was to develop multifunctional composite chitosan/Bioglass coatings loaded with gentamicin antibiotic as a suitable strategy to improve the surface properties of metallic implants. Electrophoretic deposition (EPD) was applied as a single-step technology to simultaneously deposit the biopolymer, bioactive glass particles, and the antibiotic on stainless steel substrate. The microstructure and composition of the coatings were characterized using SEM/EDX, XRD, FTIR, and TGA/DSC, respectively. The in vitro bioactivity of the coatings was demonstrated by formation of hydroxyapatite after immersion in simulated body fluid (SBF) in a short period of 2 days. High-performance liquid chromatography (HPLC) measurements indicated the release of 40% of the loaded gentamicin in phosphate buffered saline (PBS) within the first 5 days. The developed composite coating supported attachment and proliferation of MG-63 cells up to 10 days. Moreover, disc diffusion test showed improved bactericidal effect of gentamicin-loaded composite coatings against S. aureus compared to control non-gentamicin-loaded coatings.
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Affiliation(s)
- Fatemehsadat Pishbin
- Department of Materials, Imperial College London , Prince Consort Road, London SW7 2BP, United Kingdom
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Braghirolli DI, Steffens D, Pranke P. Electrospinning for regenerative medicine: a review of the main topics. Drug Discov Today 2014; 19:743-53. [DOI: 10.1016/j.drudis.2014.03.024] [Citation(s) in RCA: 157] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 03/06/2014] [Accepted: 03/27/2014] [Indexed: 12/20/2022]
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Abstract
Ocular surface defects represent one of the most common causes of impaired vision or even blindness. For treatment, keratoplasty represents the first choice. However, if corneal defects are more extensive and associated with a limbal stem cell (LSC) deficiency, corneal transplantation is not a sufficient therapeutic procedure and only viable approach to treatment is the transplantation of LSCs. When the LSC deficiency is a bilateral disorder, autologous LSCs are not available. The use of allogeneic LSCs requires strong immunosuppression, which leads to side-effects, and the treatment is not always effective. The alternative and perspective approach to the treatment of severe ocular surface injuries and LSC deficiency is offered by the transplantation of autologous mesenchymal stem cells (MSCs). These cells can be obtained from the bone marrow or adipose tissue of the particular patient, grow well in vitro and can be transferred, using an appropriate scaffold, onto the damaged ocular surface. Here they exert beneficial effects by possible direct differentiation into corneal epithelial cells, by immunomodulatory effects and by the production of numerous trophic and growth factors. Recent experiments utilizing the therapeutic properties of MSCs in animal models with a mechanically or chemically injured ocular surface have yielded promising results and demonstrated significant corneal regeneration, improved corneal transparency and a rapid healing process associated with the restoration of vision. The use of autologous MSCs thus represents a promising therapeutic approach and offers hope for patients with severe ocular surface injuries and LSC deficiency.
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