1
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Wildy M, Lu P. Electrospun Nanofibers: Shaping the Future of Controlled and Responsive Drug Delivery. MATERIALS (BASEL, SWITZERLAND) 2023; 16:7062. [PMID: 38004992 PMCID: PMC10672065 DOI: 10.3390/ma16227062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/02/2023] [Accepted: 11/05/2023] [Indexed: 11/26/2023]
Abstract
Electrospun nanofibers for drug delivery systems (DDS) introduce a revolutionary means of administering pharmaceuticals, holding promise for both improved drug efficacy and reduced side effects. These biopolymer nanofiber membranes, distinguished by their high surface area-to-volume ratio, biocompatibility, and biodegradability, are ideally suited for pharmaceutical and biomedical applications. One of their standout attributes is the capability to offer the controlled release of the active pharmaceutical ingredient (API), allowing custom-tailored release profiles to address specific diseases and administration routes. Moreover, stimuli-responsive electrospun DDS can adapt to conditions at the drug target, enhancing the precision and selectivity of drug delivery. Such localized API delivery paves the way for superior therapeutic efficiency while diminishing the risk of side effects and systemic toxicity. Electrospun nanofibers can foster better patient compliance and enhanced clinical outcomes by amplifying the therapeutic efficiency of routinely prescribed medications. This review delves into the design principles and techniques central to achieving controlled API release using electrospun membranes. The advanced drug release mechanisms of electrospun DDS highlighted in this review illustrate their versatility and potential to improve the efficacy of medical treatments.
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Affiliation(s)
| | - Ping Lu
- Department of Chemistry and Biochemistry, Rowan University, Glassboro, NJ 08028, USA;
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2
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Celebioglu A, Uyar T. Green Synthesis of Polycyclodextrin/Drug Inclusion Complex Nanofibrous Hydrogels: pH-Dependent Release of Acyclovir. ACS APPLIED BIO MATERIALS 2023; 6:3798-3809. [PMID: 37602902 DOI: 10.1021/acsabm.3c00446] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
The development of an approach or a material for wound healing treatments has drawn a lot of attention for decades and has been an important portion of the research in the medical industry. Especially, there is growing interest and demand for the generation of wound care products using eco-friendly conditions. Electrospinning is one of these methods that enables the production of nanofibrous materials with attractive properties for wound healing under mild conditions and by using sustainable sources. In this study, starch-derived cyclodextrin (hydroxypropyl-β-cyclodextrin (HPβCD)) was used both for forming an inclusion complex (IC) with acyclovir, a well-known antiviral drug, and for electrospinning of free-standing nanofibers. The nanofibers were produced in an aqueous system, without using a carrier polymer matrix and toxic solvent/chemical. The ultimate HPβCD/acyclovir-IC nanofibers were thermally cross-linked by using citric acid, listed in the generally regarded as safe (GRAS) category by the US Food and Drug Administration (FDA). The cross-linked HPβCD/acyclovir-IC nanofibers displayed stability in aqueous medium. The hydrogel-forming feature of nanofibers was confirmed with their high swelling profile in water in the range of ∼610-810%. Cellulose acetate (CA)/acyclovir nanofibers were also produced as the control sample. Due to inclusion complexation with HPβCD, the solubility of acyclovir was improved, so cross-linked HPβCD/acyclovir-IC nanofibrous hydrogels displayed a better release performance compared to CA/acyclovir nanofibers. Here, a pH-dependent release profile was obtained (pH 5.4 and pH 7.4) besides their attractive swelling features. Therefore, the cross-linked HPβCD/acyclovir-IC nanofibrous hydrogel can be a promising candidate as a wound healing dressing for the administration of antiviral drugs by holding the unique properties of CD and electrospun nanofibers.
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Affiliation(s)
- Asli Celebioglu
- Fiber Science Program, Department of Human Centered Design College of Human Ecology, Cornell University, Ithaca, New York 14853, United States
| | - Tamer Uyar
- Fiber Science Program, Department of Human Centered Design College of Human Ecology, Cornell University, Ithaca, New York 14853, United States
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3
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Mishra D, Gade S, Pathak V, Vora LK, Mcloughlin K, Medina R, Donnelly RF, Raghu Raj Singh T. Ocular application of electrospun materials for drug delivery and cellular therapies. Drug Discov Today 2023; 28:103676. [PMID: 37343817 DOI: 10.1016/j.drudis.2023.103676] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 05/23/2023] [Accepted: 06/14/2023] [Indexed: 06/23/2023]
Abstract
The constraints of delivering conventional drugs, biologics and cell-based therapeutics to target ocular sites necessitate the fabrication of novel drug delivery systems to treat diverse ocular diseases. Conventional ocular drug delivery approaches are prone to low bioavailability, poor penetration and degradation of therapeutics, including cell-based therapies, leading to the need for frequent topical applications or intraocular injections. However, owing to their exceptional structural properties, nanofibrous and microfibrous electrospun materials have gained significant interest in ocular drug delivery and biomaterial applications. This review covers the recent developments of electrospun fibers for the delivery of drugs, biologics, cells, growth factors and tissue regeneration in treating ocular diseases. The insights from this review can provide a thorough understanding of the selection of materials for the fabrication of nano- and/or micro-fibrous systems for ocular applications, with a particular interest in achieving controlled drug release and cell therapy. A detailed modality for fabricating different types of nano- and micro-fibers produced from electrospinning and factors influencing generation are also discussed.
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Affiliation(s)
- Deepakkumar Mishra
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Shilpkala Gade
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Varun Pathak
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Lalitkumar K Vora
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
| | - Kiran Mcloughlin
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Reinhold Medina
- Wellcome Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Ryan F Donnelly
- School of Pharmacy, Queen's University Belfast, Medical Biology Centre, Belfast, UK
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Wei J, Mu J, Tang Y, Qin D, Duan J, Wu A. Next-generation nanomaterials: advancing ocular anti-inflammatory drug therapy. J Nanobiotechnology 2023; 21:282. [PMID: 37598148 PMCID: PMC10440041 DOI: 10.1186/s12951-023-01974-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 06/29/2023] [Indexed: 08/21/2023] Open
Abstract
Ophthalmic inflammatory diseases, including conjunctivitis, keratitis, uveitis, scleritis, and related conditions, pose considerable challenges to effective management and treatment. This review article investigates the potential of advanced nanomaterials in revolutionizing ocular anti-inflammatory drug interventions. By conducting an exhaustive analysis of recent advancements and assessing the potential benefits and limitations, this review aims to identify promising avenues for future research and clinical applications. The review commences with a detailed exploration of various nanomaterial categories, such as liposomes, dendrimers, nanoparticles (NPs), and hydrogels, emphasizing their unique properties and capabilities for accurate drug delivery. Subsequently, we explore the etiology and pathophysiology of ophthalmic inflammatory disorders, highlighting the urgent necessity for innovative therapeutic strategies and examining recent preclinical and clinical investigations employing nanomaterial-based drug delivery systems. We discuss the advantages of these cutting-edge systems, such as biocompatibility, bioavailability, controlled release, and targeted delivery, alongside potential challenges, which encompass immunogenicity, toxicity, and regulatory hurdles. Furthermore, we emphasize the significance of interdisciplinary collaborations among material scientists, pharmacologists, and clinicians in expediting the translation of these breakthroughs from laboratory environments to clinical practice. In summary, this review accentuates the remarkable potential of advanced nanomaterials in redefining ocular anti-inflammatory drug therapy. We fervently support continued research and development in this rapidly evolving field to overcome existing barriers and improve patient outcomes for ophthalmic inflammatory disorders.
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Affiliation(s)
- Jing Wei
- School of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Jinyu Mu
- School of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Yong Tang
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Education Ministry Key Laboratory of Medical Electrophysiology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Dalian Qin
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Education Ministry Key Laboratory of Medical Electrophysiology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, China
| | - Junguo Duan
- School of Ophthalmology, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
| | - Anguo Wu
- Sichuan Key Medical Laboratory of New Drug Discovery and Druggability Evaluation, Education Ministry Key Laboratory of Medical Electrophysiology, School of Pharmacy, Southwest Medical University, Luzhou, 646000, China.
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Awwad S, Ibeanu N, Liu T, Velentza-Almpani A, Chouhan N, Vlatakis S, Khaw PT, Brocchini S, Bouremel Y. Real-Time Monitoring Platform for Ocular Drug Delivery. Pharmaceutics 2023; 15:pharmaceutics15051444. [PMID: 37242686 DOI: 10.3390/pharmaceutics15051444] [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: 03/23/2023] [Revised: 04/26/2023] [Accepted: 04/30/2023] [Indexed: 05/28/2023] Open
Abstract
Real-time measurement is important in modern dissolution testing to aid in parallel drug characterisation and quality control (QC). The development of a real-time monitoring platform (microfluidic system, a novel eye movement platform with temperature sensors and accelerometers and a concentration probe setup) in conjunction with an in vitro model of the human eye (PK-Eye™) is reported. The importance of surface membrane permeability when modelling the PK-Eye™ was determined with a "pursing model" (a simplified setup of the hyaloid membrane). Parallel microfluidic control of PK-Eye™ models from a single source of pressure was performed with a ratio of 1:6 (pressure source:models) demonstrating scalability and reproducibility of pressure-flow data. Pore size and exposed surface area helped obtain a physiological range of intraocular pressure (IOP) within the models, demonstrating the need to reproduce in vitro dimensions as closely as possible to the real eye. Variation of aqueous humour flow rate throughout the day was demonstrated with a developed circadian rhythm program. Capabilities of different eye movements were programmed and achieved with an in-house eye movement platform. A concentration probe recorded the real-time concentration monitoring of injected albumin-conjugated Alexa Fluor 488 (Alexa albumin), which displayed constant release profiles. These results demonstrate the possibility of real-time monitoring of a pharmaceutical model for preclinical testing of ocular formulations.
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Affiliation(s)
- Sahar Awwad
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
- National Institute for Health Research (NIHR) Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London EC1V 9EL, UK
| | - Nkiruka Ibeanu
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
- National Institute for Health Research (NIHR) Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London EC1V 9EL, UK
| | - Tianyang Liu
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Angeliki Velentza-Almpani
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Nerisha Chouhan
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Stavros Vlatakis
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Peng Tee Khaw
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- National Institute for Health Research (NIHR) Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London EC1V 9EL, UK
| | - Steve Brocchini
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
- National Institute for Health Research (NIHR) Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London EC1V 9EL, UK
| | - Yann Bouremel
- Optceutics Ltd., 28a Menelik Road, London NW2 3RP, UK
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, UK
- National Institute for Health Research (NIHR) Biomedical Research Centre, Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London EC1V 9EL, UK
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6
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Gelb MB, Punia A, Sellers S, Kadakia P, Ormes JD, Khawaja NN, Wylie J, Lamm MS. Effect of drug incorporation and polymer properties on the characteristics of electrospun nanofibers for drug delivery. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103112] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Omer S, Zelkó R. A Systematic Review of Drug-Loaded Electrospun Nanofiber-Based Ophthalmic Inserts. Pharmaceutics 2021; 13:1637. [PMID: 34683930 PMCID: PMC8536958 DOI: 10.3390/pharmaceutics13101637] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/26/2021] [Accepted: 10/05/2021] [Indexed: 12/14/2022] Open
Abstract
Currently, ocular inserts and nanoparticles have received much attention due to the limited bioavailability of conventional eye preparations and the toxicity problems of systemic drug administration. The current systematic review aims to present recent studies on the use of electrospun nanofiber-based ocular inserts to improve the bioavailability of drugs used for different ophthalmic diseases. A systematic search was performed in PubMed, Ovid Medline, Web of Science, ScienceDirect, Scopus, Reaxys, Google Scholar, and Google Patents/Espacenet taking "drug-loaded", "nanofibers", and "ophthalmic inserts" and their equivalent terms as keywords. The search was limited to original and peer-reviewed studies published in 2011-2021 in English language. Only 13 out of 795 articles and 15 out of 197 patents were included. All results revealed the success of nanofiber-based ocular inserts in targeting and improved bioavailability. Ocular inserts based on nanofibers can be used as safe, efficient carriers for the treatment of anterior and posterior eye diseases.
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Affiliation(s)
| | - Romána Zelkó
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, 1092 Budapest, Hungary;
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8
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Tawfik EA, Alshamsan A, Abul Kalam M, Raish M, Alkholief M, Stapleton P, Harvey K, Craig DQM, Barker SA. In vitro and in vivo biological assessment of dual drug-loaded coaxial nanofibers for the treatment of corneal abrasion. Int J Pharm 2021; 604:120732. [PMID: 34044058 DOI: 10.1016/j.ijpharm.2021.120732] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/06/2021] [Accepted: 05/20/2021] [Indexed: 12/25/2022]
Abstract
The treatment of corneal abrasion currently involves the topical administration of antibiotics, with moxifloxacin HCl (0.5% w/v) eye drops being one of the most widely used treatments. Our previous work (Tawfik et al., 2020) involved the development of coaxial poly-lactic-co-glycolic acid (PLGA) and polyvinylpyrrolidone (PVP) nanofibers loaded with the antibiotic moxifloxacin HCl and the anti-scarring agent pirfenidone in the core (PVP) and shell (PLGA) respectively, with a view to the system comprising an ocular insert for the combination therapy of corneal abrasion. In this study, we examine the antimicrobial, anti-scarring and pharmacokinetic properties of the fibers alongside consideration of their toxicity and propensity for irritation. Minimum inhibitory concentration and zone of inhibition studies against S. aureus and P. aeruginosa were performed, while fibroblast cell viability and α-smooth muscle actin (α-SMA, a biomarker for scar formation) were measured using MTT and Western Blot assays, respectively. Pharmacokinetic studies and efficacy against infection were performed using a rabbit model, while ocular irritancy was assessed using the Draize test. The studies demonstrated that the antimicrobial activity of the moxifloxacin HCl was preserved following encapsulation into the nanofibers, while the downregulation of α-SMA was demonstrated using concentrations below the IC20 values (concentration required to decrease corneal fibroblast viability by no more than 20%). The pharmacokinetic study showed retention and sustained release of the moxifloxacin HCl over a 24-hour period, in contrast to equivalent eye drops which required four times daily dosing. Evidence of low level (according to the MMTS scale) irritation was detected for the nanofiber systems. Overall, the study has demonstrated that the dual drug-loaded nanofiber system shows potential for once daily dosing as an ocular insert for the treatment of corneal abrasion.
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Affiliation(s)
- Essam A Tawfik
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom; National Center for Pharmaceutical Technology, Life Science and Environment Research Institute, King Abdulaziz City for Science and Technology, 6086, Riyadh 11442 Saudi Arabia.
| | - Aws Alshamsan
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, 2457, Riyadh 11451, Saudi Arabia
| | - Mohd Abul Kalam
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, 2457, Riyadh 11451, Saudi Arabia
| | - Mohammad Raish
- Department of Pharmaceutics, College of Pharmacy, King Saud University, 2457, Riyadh 11451, Saudi Arabia
| | - Musaed Alkholief
- Nanobiotechnology Unit, Department of Pharmaceutics, College of Pharmacy, King Saud University, 2457, Riyadh 11451, Saudi Arabia
| | - Paul Stapleton
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Kirsten Harvey
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Duncan Q M Craig
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom.
| | - Susan A Barker
- Medway School of Pharmacy, The Universities of Greenwich and Kent at Medway, Anson Building Central Avenue, Chatham, Kent, ME4 4TB, United Kingdom
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Lan X, Wang H, Bai J, Miao X, Lin Q, Zheng J, Ding S, Li X, Tang Y. Multidrug-loaded electrospun micro/nanofibrous membranes: Fabrication strategies, release behaviors and applications in regenerative medicine. J Control Release 2021; 330:1264-1287. [PMID: 33232749 DOI: 10.1016/j.jconrel.2020.11.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 01/02/2023]
Abstract
Electrospun micro/nanofibrous membranes (EFMs) have been widely investigated as local drug delivery systems. Multiple drugs can be simultaneously incorporated into one EFM to create synergistic effects, reduce side effects, and play their respective roles in the complex physiological processes of tissue regeneration and postoperative adhesion prevention. Due to the versatile electrospinning techniques, sustained and programmed release behaviors of multiple drugs could be achieved by modulating the structure of the EFMs and the location of the drugs. In this review, various multidrug incorporation approaches based on electrospinning are overviewed. In particular, the advantages and limitations of each drug incorporation technique, the methods to control drug release and the effect of one drug release on another are discussed. Then the applications of multidrug-loaded EFMs in regenerative medicine, including wound healing, bone regeneration, vascular tissue engineering, nerve regeneration, periodontal regeneration and adhesion prevention are comprehensively reviewed. Finally, the future perspectives and challenges in the research of multidrug-loaded EFMs are discussed.
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Affiliation(s)
- Xingzi Lan
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Han Wang
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianfu Bai
- State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment, School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Xiaomin Miao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Quan Lin
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Jianpei Zheng
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China
| | - Shukai Ding
- Materials Institute of Atomic and Molecular Science, ShaanXi University of Science and Technology, Xi'an 710021, China
| | - Xiaoran Li
- Innovation Center for Textile Science and Technology, Donghua University, Shanghai 200051, China
| | - Yadong Tang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China; School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China.
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Celebioglu A, Uyar T. Electrospun formulation of acyclovir/cyclodextrin nanofibers for fast-dissolving antiviral drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 118:111514. [DOI: 10.1016/j.msec.2020.111514] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/24/2020] [Accepted: 09/04/2020] [Indexed: 01/14/2023]
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Aburayan WS, Booq RY, BinSaleh NS, Alfassam HA, Bakr AA, Bukhary HA, Alyamani EJ, Tawfik EA. The Delivery of the Novel Drug 'Halicin' Using Electrospun Fibers for the Treatment of Pressure Ulcer against Pathogenic Bacteria. Pharmaceutics 2020; 12:pharmaceutics12121189. [PMID: 33302338 PMCID: PMC7762391 DOI: 10.3390/pharmaceutics12121189] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 12/19/2022] Open
Abstract
Pressure ulcer or bedsore is a form of skin infection that commonly occurs with patients admitted to the hospital for an extended period of time, which might lead to severe complications in the absence of medical attention, resulting in infection either by drug-sensitive or drug-resistant bacteria. Halicin, a newly discovered drug effective against several bacterial strains, including multidrug-resistant bacteria, was investigated to reduce bacterial infection burden. This study aims to formulate halicin into electrospun fibers to be applied in bedsores as antibacterial dressing to assess its efficacy against gram-positive (Staphylococcus aureus) and gram-negative bacteria (Escherichia coli and Acinetobacter baumannii) by studying the minimum inhibitory concentration (MIC) and bacterial zone of inhibition assays. The diameters of inhibition growth zones were measured, and the results have shown that the drug-loaded fibers were able to inhibit the growth of bacteria compared to the halicin discs. The release profile of the drug-loaded fibers exhibited a complete release of the drug after 2 h. The results demonstrated that the drug-loaded fibers could successfully release the drug while retaining their biological activity and they may be used as a potential antimicrobial dressing for patients with pressure ulcers caused by multidrug resistant bacteria.
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Affiliation(s)
- Walaa S. Aburayan
- National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (W.S.A.); (N.S.B.)
| | - Rayan Y. Booq
- National Center of Biotechnology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (R.Y.B.); (A.A.B.)
| | - Nouf S. BinSaleh
- National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (W.S.A.); (N.S.B.)
| | - Haya A. Alfassam
- Center of Excellence for Biomedicine, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia;
| | - Abrar A. Bakr
- National Center of Biotechnology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (R.Y.B.); (A.A.B.)
| | - Haitham A. Bukhary
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah 24381, Saudi Arabia;
| | - Essam J. Alyamani
- National Center of Biotechnology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (R.Y.B.); (A.A.B.)
- Correspondence: (E.J.A.); (E.A.T.)
| | - Essam A. Tawfik
- National Center for Pharmaceutical Technology, King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh 11442, Saudi Arabia; (W.S.A.); (N.S.B.)
- Correspondence: (E.J.A.); (E.A.T.)
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12
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Preclinical challenges for developing long acting intravitreal medicines. Eur J Pharm Biopharm 2020; 153:130-149. [DOI: 10.1016/j.ejpb.2020.05.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 05/01/2020] [Accepted: 05/08/2020] [Indexed: 02/07/2023]
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13
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Kurakula M, Koteswara Rao G. Moving polyvinyl pyrrolidone electrospun nanofibers and bioprinted scaffolds toward multidisciplinary biomedical applications. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109919] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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14
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Kłysik K, Pietraszek A, Karewicz A, Nowakowska M. Acyclovir in the Treatment of Herpes Viruses – A Review. Curr Med Chem 2020. [DOI: 10.2174/0929867325666180309105519] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background:
Herpes Simplex (HSV) viruses are widely spread, highly contagious
human pathogens. The statistics indicate that 50-90% of adults worldwide are seropositive for
these viruses, mainly HSV-1 and HSV-2. The primary infection results in the appearance of
watery blisters (cold sores) on the skin, lips, tongue, buccal mucosa or genitals. The ocular
infection is the major cause of corneal blindness in the Western World. Once the HSV virus
enters human body, it cannot be completely eradicated because HSV viruses are able to
change into their latent form which can survive the treatment. The viron resides in trigeminal
ganglia of the host, who becomes vulnerable to the reoccurrence of the disease during the
whole lifespan. The neurotropic and neuro-invasive properties of HSV are responsible for
neurodegenerative illnesses, such as Alzheimer's disease. Acyclovir and its analogues, being
the inhibitors of the viral DNA replication, are the only approved medicines for HSV infection
therapies.
Objective:
The current paper presents the up-to-date overview of the important pharmacological
features of acyclovir, its analogues and their delivery systems including the mechanism of
action, routes of administration, absorption and metabolism, as well as side effects of the therapy.
Conclusion:
Acyclovir remains the gold standard in the treatment of herpes virus infections,
mainly due to the emerging of the new delivery systems improving considerably its bioavailability.
The analogues of acyclovir, especially their esters, characterized by significantly
higher bioavailability and safety, may gradually replace acyclovir in selected applications.
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Affiliation(s)
- Katarzyna Kłysik
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Aneta Pietraszek
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Anna Karewicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Maria Nowakowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
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15
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Shekh MI, Amirian J, Stadler FJ, Du B, Zhu Y. Oxidized chitosan modified electrospun scaffolds for controllable release of acyclovir. Int J Biol Macromol 2020; 151:787-796. [PMID: 32092427 DOI: 10.1016/j.ijbiomac.2020.02.230] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/14/2020] [Accepted: 02/20/2020] [Indexed: 12/14/2022]
Abstract
Developing a novel scaffold carrier with a sustained and controllable release profile of drug is essential to promote the effective transdermal delivery for acyclovir (ACY). In this work, electrospun polyacrylonitrile nanofibers (PAN NFs) was chemically modified with oxidized chitosan (OC). The modified fibrous scaffold was further loaded with the ACY for drug released investigation. FT-IR and NMR results revealed that the conversion of the functional group for each step has successfully occurred on the surface of the fibers. Through the in-vitro drug release and kinetic study, it demonstrated that ACY could be sustainably and controlled released from the OC modified scaffold following the Korsmeyer-Peppas model with a Fickian diffusion mechanism. The human adipose-derived stem cells and the blood combability evaluation confirmed the obtained scaffold possessed excellent cell biocompatibility and hemocompatibility. It could be concluded that the resultant OC modified scaffold based on electrospun PAN NFs opened a new potential option for the topical/transdermal drug delivery of ACY.
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Affiliation(s)
- Mehdihasan I Shekh
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518055, PR China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Jhaleh Amirian
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518055, PR China; Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Florian J Stadler
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518055, PR China
| | - Bing Du
- College of Materials Science and Engineering, Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Lab for Biopolymers and Safety Evaluation, Shenzhen University, Shenzhen 518055, PR China.
| | - Yanxia Zhu
- Department of Cell Biology, Health Science Centre, Shenzhen University, Shenzhen 518060, PR China.
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16
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Doostmohammadi M, Forootanfar H, Ramakrishna S. Regenerative medicine and drug delivery: Progress via electrospun biomaterials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 109:110521. [PMID: 32228899 DOI: 10.1016/j.msec.2019.110521] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 12/01/2019] [Accepted: 12/02/2019] [Indexed: 02/07/2023]
Abstract
Worldwide research on electrospinning enabled it as a versatile technique for producing nanofibers with specified physio-chemical characteristics suitable for diverse biomedical applications. In the case of tissue engineering and regenerative medicine, the nanofiber scaffolds' characteristics are custom designed based on the cells and tissues specific needs. This fabrication technique is also innovated for the production of nanofibers with special micro-structure and secondary structure characteristics such as porous fibers, hollow structure, and core- sheath structure. This review attempts to critically and succinctly capture the vast number of developments reported in the literature over the past two decades. We then discuss their applications as scaffolds for induction of cells growth and differentiation or as architecture for being used as graft for tissue engineering. The special nanofibers designed for improving regeneration of several tissues including heart, bone, central nerve system, spinal cord, skin and ocular tissue are introduced. We also discuss the potential of the electrospinning in drug delivery applications, which is a critical factor for cell culture, tissue formation and wound healing applications.
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Affiliation(s)
- Mohsen Doostmohammadi
- Pharmaceutics Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Hamid Forootanfar
- Pharmaceutical Sciences and Cosmetic Products Research Center, Kerman University of Medical Sciences, Kerman, Iran; Herbal and Traditional Medicines Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576, Singapore.
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17
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Costa T, Ribeiro A, Machado R, Ribeiro C, Lanceros-Mendez S, Cavaco-Paulo A, Almeida A, das Neves J, Lúcio M, Viseu T. Polymeric Electrospun Fibrous Dressings for Topical Co-delivery of Acyclovir and Omega-3 Fatty Acids. Front Bioeng Biotechnol 2019; 7:390. [PMID: 31850337 PMCID: PMC6901623 DOI: 10.3389/fbioe.2019.00390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Accepted: 11/19/2019] [Indexed: 12/31/2022] Open
Abstract
Herpetic infections caused by Herpes simplex virus (HSV) are among the most common human infections, affecting more than two quarters of the world's population. The standard treatment for orofacial herpes is the administration of antiviral drugs, mainly acyclovir (ACV). However, current products are mostly based on semisolid formulations that have limited ability to promote drug skin penetration and tend to leak from the application site, thus showing reduced ability to sustain local drug residence. This work reports on the production of poly (ε-caprolactone) (PCL) fibrous matrices with ACV and omega-3 fatty acids (ω3) for application as dressings to the topical treatment of orofacial herpes. PCL fibrous matrices with the co-incorporated bioactive compounds were obtained by electrospinning and characterized regarding their morphology, chemical, physical, and mechanical properties. The potential use of the developed polymeric fibrous matrices for topical applications was evaluated by: (i) the release kinetics of the bioactive compounds; (ii) the occlusive factor of the fibrous mat; (iii) ACV skin permeation capacity; and (iv) the cytotoxicity in a keratinocyte cell line. PCL fibrous matrices loaded with the bioactive compounds presented a smooth morphology and a good balance between flexibility and hardness essential to be durable for handling, while having a desirable texture to be used comfortably. The fibrous mat also provided a sustained release of ACV during 96 h and improved the skin permeability of this drug (Kp = 0.00928 ± 0.000867 cm/h) presenting also high porosity (74%) and a water vapor transmission rate (WVTR) of 881 ± 91 g/m2day, essential to maintain moist and oxygen for faster healing of herpes lesions. Furthermore, cytotoxicity studies suggest that the fibrous mat are safe for topical application. Overall, the PCL based electrospun fibrous matrices with ACV and ω3 hereby described have the potential to be used as therapeutic bandage systems for the treatment of orofacial herpes.
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Affiliation(s)
- Tiago Costa
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal
| | - Artur Ribeiro
- Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Raul Machado
- Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal.,Institute of Science and Innovation for Sustainability (IB-S), University of Minho, Braga, Portugal
| | - Clarisse Ribeiro
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal.,Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Senentxu Lanceros-Mendez
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal.,Basque Center for Materials, Applications and Nanostructures (BCMaterials), UPV/EHU Science Park, Leioa, Spain.,Basque Foundation for Science (Ikerbasque), Bilbao, Spain
| | - Artur Cavaco-Paulo
- Centre of Biological Engineering (CEB), University of Minho, Braga, Portugal
| | - Andreia Almeida
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Engineering (INEB), University of Porto, Porto, Portugal.,Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - José das Neves
- Institute for Research and Innovation in Health (i3S), University of Porto, Porto, Portugal.,Institute of Biomedical Engineering (INEB), University of Porto, Porto, Portugal
| | - Marlene Lúcio
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal.,Centre of Molecular and Environmental Biology (CBMA), University of Minho, Braga, Portugal
| | - Teresa Viseu
- Centre of Physics of Universities of Minho and Porto (CF-UM-UP), University of Minho, Braga, Portugal
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18
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Ambrus R, Alshweiat A, Csóka I, Ovari G, Esmail A, Radacsi N. 3D-printed electrospinning setup for the preparation of loratadine nanofibers with enhanced physicochemical properties. Int J Pharm 2019; 567:118455. [DOI: 10.1016/j.ijpharm.2019.118455] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 11/26/2022]
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19
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Li H, Zhang Z, Godakanda VU, Chiu YJ, Angkawinitwong U, Patel K, Stapleton PG, de Silva RM, de Silva KMN, Zhu LM, Williams GR. The effect of collection substrate on electrospun ciprofloxacin-loaded poly(vinylpyrrolidone) and ethyl cellulose nanofibers as potential wound dressing materials. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109917. [PMID: 31500044 DOI: 10.1016/j.msec.2019.109917] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 06/22/2019] [Accepted: 06/24/2019] [Indexed: 01/22/2023]
Abstract
In this work, nanofibers based on hydrophilic poly(vinylpyrrolidone) (PVP) and hydrophobic ethyl cellulose (EC) were generated via electrospinning. A model antibiotic, ciprofloxacin (CIF), was also incorporated into the fibers. Fibers were collected on both a foil substrate and a commercial gauze, the latter in the interests of developing a smart fabric. Electron microscopy images revealed that the fibers collected on both foil and fabric were homogeneous and cylindrical. Infrared spectroscopy, X-ray diffraction and differential scanning calorimetry demonstrated that CIF was successfully loaded into the fibers and present in the amorphous physical form. In vitro drug release tests were conducted to simulate drug release from the formulations into a wound site, and as expected the hydrophilic fibers showed much faster release than their hydrophobic analogues. CIF was released through a combined mechanism of polymer erosion and drug diffusion, and the EC nanofibers displayed close to zero-order release over three days. Fibroblast cells are able to grow and proliferate on the fibers. Finally, inhibition zone assays revealed that the growth of both Gram positive and Gram negative bacteria could be effectively inhibited as a result of the presence of CIF in the fibers. There were no marked differences between the fibers collected on foil and on gauze, and electrospinning can be performed directly onto a gauze substrate to prepare a smart fabric.
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Affiliation(s)
- Heyu Li
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China
| | - Ziwei Zhang
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - V Umayangana Godakanda
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK; Department of Chemistry, University of Colombo, Colombo 00300, Sri Lanka
| | - Yu-Jing Chiu
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Ukrit Angkawinitwong
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Karishma Patel
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Paul G Stapleton
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Rohini M de Silva
- Department of Chemistry, University of Colombo, Colombo 00300, Sri Lanka
| | - K M Nalin de Silva
- Department of Chemistry, University of Colombo, Colombo 00300, Sri Lanka
| | - Li-Min Zhu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China.
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
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20
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Adibkia K, Ghajar S, Osouli-Bostanabad K, Balaei N, Emami S, Barzegar-Jalali M. Novel Gliclazide Electrosprayed Nano-Solid Dispersions: Physicochemical Characterization and Dissolution Evaluation. Adv Pharm Bull 2019; 9:231-240. [PMID: 31380248 PMCID: PMC6664122 DOI: 10.15171/apb.2019.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 01/11/2019] [Accepted: 04/14/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose: In the current study, electrospraying was directed as a novel alternative approach to improve the physicochemical attributes of gliclazide (GLC), as a poorly water-soluble drug, by creating nanocrystalline/amorphous solid dispersions (ESSs). Methods: ESSs were formulated using Eudragit® RS100 and polyethylene glycol (PEG) 6000 as polymeric carriers at various drug: polymer ratios (i.e. 1:5 and 1:10) with different total solution concentrations of 10, 15, and 20% w/v. Morphological, physicochemical, and in-vitro release characteristics of the developed formulations were assessed. Furthermore, GLC dissolution behaviors from ESSs were fitted to various models in order to realize the drug release mechanism. Results: Field emission scanning electron microscopy analyses revealed that the size and morphology of the ESSs were affected by the drug: polymer ratios and solution concentrations. The polymer ratio augmentation led to increase in the particle size while the solution concentration enhancement yielded in a fiber establishment. Differential scanning calorimetry and powder X-ray diffraction investigations demonstrated that the ESSs were present in an amorphous state. Furthermore, the in vitro drug release studies depicted that the samples prepared employing PEG 6000 as carrier enhanced the dissolution rate and the model that appropriately fitted the release behavior of ESSs was Weibull model, where demonstrating a Fickian diffusion as the leading release mechanism. Fourier-transform infrared spectroscopy results showed a probability of complexation or hydrogen bonding, development between GLC and the polymers in the solid state. Conclusion: Hence the electrospraying system avails the both nanosizing and amorphization advantages, therefore, it can be efficiently applied to formulating of ESSs of BCS Class II drugs.
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Affiliation(s)
- Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Ghajar
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Karim Osouli-Bostanabad
- Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Niloufar Balaei
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
- Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahram Emami
- Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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21
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Buck E, Maisuria V, Tufenkji N, Cerruti M. Antibacterial Properties of PLGA Electrospun Scaffolds Containing Ciprofloxacin Incorporated by Blending or Physisorption. ACS APPLIED BIO MATERIALS 2018; 1:627-635. [DOI: 10.1021/acsabm.8b00112] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Emily Buck
- Department of Mining and Materials Engineering, McGill University, Montréal, Québec H3A 0C5, Canada
| | - Vimal Maisuria
- Department of Chemical Engineering, McGill University, Montréal, Québec H3A 0C5, Canada
| | - Nathalie Tufenkji
- Department of Chemical Engineering, McGill University, Montréal, Québec H3A 0C5, Canada
| | - Marta Cerruti
- Department of Mining and Materials Engineering, McGill University, Montréal, Québec H3A 0C5, Canada
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22
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Liu M, Zhang Y, Sun S, Khan AR, Ji J, Yang M, Zhai G. Recent advances in electrospun for drug delivery purpose. J Drug Target 2018; 27:270-282. [PMID: 29798692 DOI: 10.1080/1061186x.2018.1481413] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Electrospun, an advanced technology, has been successfully employed for fibre production and offers many merits in novel drug delivery systems (DDSs). In recent years, electrospun has gained significant attention and attraction of the scientists in soaring numbers. This technology is superior to other technologies in fabricating the fibres which range from micrometers to manometers scale. The selection of appropriate polymers, electrospun processes and electrospun parameters play important roles in controlling the drug release while, treating serious illness. Besides, electrospraying process has similar characteristics to the electrospun and is presented briefly here. Further, in vivo and in vitro evaluations of the electrospun nanofibers are comprehensively discussed. In addition, the electrospun nanotechnology has been exploited to design drug release systems, investigate drug's pharmacokinetics and further develop DDS. The electrospun nanofibers improve bioactivity of various types of drugs including water-insoluble, soluble, anticancer and antibacterial drugs and genetic materials. In the end, the prospects and challenges in the process of designing drug-loaded electrospun nanofibers are discussed in detail.
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Affiliation(s)
- Mengyao Liu
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Yanan Zhang
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Siyu Sun
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Abdur Rauf Khan
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Jianbo Ji
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
| | - Mingshi Yang
- b Department of Pharmacy, Faculty of Health and Medical Sciences , University of Copenhagen , Copenhagen , Denmark
| | - Guangxi Zhai
- a Department of Pharmaceutics, College of Pharmacy , Shandong University , Jinan , China
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23
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Awwad S, Al-Shohani A, Khaw PT, Brocchini S. Comparative Study of In Situ Loaded Antibody and PEG-Fab NIPAAM Gels. Macromol Biosci 2017; 18. [PMID: 29205853 DOI: 10.1002/mabi.201700255] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 09/18/2017] [Indexed: 01/01/2023]
Abstract
Hydrogels can potentially prolong the release of a therapeutic protein, especially to treat blinding conditions. One challenge is to ensure that the protein and hydrogel are intimately mixed by better protein entanglement within the hydrogel. N-isopropylacrylamide (NIPAAM) gels are optimized with poly(ethylene glycol) diacrylate (PEDGA) crosslinker in the presence of either bevacizumab or PEG conjugated ranibizumab (PEG10 -Fabrani ). The release profiles of the hydrogels are evaluated using an outflow model of the eye, which is previously validated for human clearance of proteins. Release kinetics of in situ loaded bevacizumab-NIPAAM gels displays a prolonged bimodal release profile in phosphate buffered saline compared to bevacizumab loaded into a preformed NIPAAM gel. Bevacizumab release in simulated vitreous from in situ loaded gels is similar to bevacizumab control indicating that diffusion through the vitreous rather than from the gel is rate limiting. Ranibizumab is site-specifically PEGylated by disulfide rebridging conjugation. Prolonged and continuous release is observed with the in situ loaded PEG10 -Fabrani -NIPAAM gels compared to PEG10 -Fabrani injection (control). Compared to an unmodified protein, there is better mixing due to PEG entanglement and compatibility of PEG10 -Fabrani within the NIPAAM-PEDGA hydrogel. These encouraging results suggest that the extended release of PEGylated proteins in the vitreous can be achieved using injectable hydrogels.
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Affiliation(s)
- Sahar Awwad
- UCL School of Pharmacy, London, WC1N 1AX, UK.,National Institute for Health Research (NIHR) Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, EC1V 9EL, UK
| | - Athmar Al-Shohani
- UCL School of Pharmacy, London, WC1N 1AX, UK.,National Institute for Health Research (NIHR) Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, EC1V 9EL, UK
| | - Peng T Khaw
- National Institute for Health Research (NIHR) Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, EC1V 9EL, UK
| | - Steve Brocchini
- UCL School of Pharmacy, London, WC1N 1AX, UK.,National Institute for Health Research (NIHR) Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust and UCL Institute of Ophthalmology, London, EC1V 9EL, UK
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24
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Mehta P, Al-Kinani AA, Arshad MS, Chang MW, Alany RG, Ahmad Z. Development and characterisation of electrospun timolol maleate-loaded polymeric contact lens coatings containing various permeation enhancers. Int J Pharm 2017; 532:408-420. [PMID: 28917987 DOI: 10.1016/j.ijpharm.2017.09.029] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Revised: 09/11/2017] [Accepted: 09/12/2017] [Indexed: 12/13/2022]
Abstract
Despite exponential growth in research relating to sustained and controlled ocular drug delivery, anatomical and chemical barriers of the eye still pose formulation challenges. Nanotechnology integration into the pharmaceutical industry has aided efforts in potential ocular drug device development. Here, the integration and in vitro effect of four different permeation enhancers (PEs) on the release of anti-glaucoma drug timolol maleate (TM) from polymeric nanofiber formulations is explored. Electrohydrodynamic (EHD) engineering, more specifically electrospinning, was used to engineer nanofibers (NFs) which coated the exterior of contact lenses. Parameters used for engineering included flow rates ranging from 8 to 15μL/min and a novel EHD deposition system was used; capable of hosting four lenses, masked template and a ground electrode to direct charged atomised structures. SEM analysis of the electrospun structures confirmed the presence of smooth nano-fibers; whilst thermal analysis confirmed the stability of all formulations. In vitro release studies demonstrated a triphasic release; initial burst release with two subsequent sustained release phases with most of the drug being released after 24h (86.7%) Biological evaluation studies confirmed the tolerability of all formulations tested with release kinetics modelling results showing drug release was via quasi-Fickian or Fickian diffusion. There were evident differences (p<0.05) in TM release dependant on permeation enhancer.
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Affiliation(s)
- Prina Mehta
- Leicester School of Pharmacy, De Montfort University, Leicester, LE1 9BH, UK
| | - Ali A Al-Kinani
- Kingston University London, School of Life Sciences, Pharmacy and Chemistry, Kingston Upon Thames, Surrey, KT1 2EE, UK
| | | | - Ming-Wei Chang
- College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou 310027, China; Zhejiang Provincial Key Laboratory of Cardio-Cerebral Vascular Detection Technology and Medicinal Effectiveness Appraisal, Zhejiang University, Hangzhou 310027, China
| | - Raid G Alany
- Kingston University London, School of Life Sciences, Pharmacy and Chemistry, Kingston Upon Thames, Surrey, KT1 2EE, UK
| | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester, LE1 9BH, UK.
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25
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Contardi M, Heredia-Guerrero JA, Perotto G, Valentini P, Pompa PP, Spanò R, Goldoni L, Bertorelli R, Athanassiou A, Bayer IS. Transparent ciprofloxacin-povidone antibiotic films and nanofiber mats as potential skin and wound care dressings. Eur J Pharm Sci 2017; 104:133-144. [PMID: 28366652 DOI: 10.1016/j.ejps.2017.03.044] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 03/21/2017] [Accepted: 03/30/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Marco Contardi
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | | | - Giovanni Perotto
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Paola Valentini
- Nanobiointeractions and Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Pier Paolo Pompa
- Nanobiointeractions and Nanodiagnostics, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Raffaele Spanò
- Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Luca Goldoni
- Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | - Rosalia Bertorelli
- Department of Drug Discovery and Development, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy
| | | | - Ilker S Bayer
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, Genova 16163, Italy.
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26
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Gao Y, Teoh TW, Wang Q, Williams GR. Electrospun organic–inorganic nanohybrids as sustained release drug delivery systems. J Mater Chem B 2017; 5:9165-9174. [DOI: 10.1039/c7tb01825h] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Novel organic–inorganic nanohybrids have been prepared, and are found to provide long-term extended drug release.
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Affiliation(s)
- Yanshan Gao
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
- UCL School of Pharmacy
| | - Tian Wei Teoh
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
| | - Qiang Wang
- College of Environmental Science and Engineering
- Beijing Forestry University
- Beijing 100083
- P. R. China
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