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Ahmed J, Gultekinoglu M, Edirisinghe M. Recent developments in the use of centrifugal spinning and pressurized gyration for biomedical applications. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1916. [PMID: 37553260 DOI: 10.1002/wnan.1916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 06/23/2023] [Accepted: 07/06/2023] [Indexed: 08/10/2023]
Abstract
Centrifugal spinning is a technology used to generate small diameter fibers and has been extensively studied for its vast applications in biomedical engineering. Centrifugal spinning is known for its rapid production rate and has inspired the creation of other technologies which leverage the high-speed rotation, namely Pressurized Gyration. Pressurized gyration incorporates a unique applied gas pressure which serves to provide additional control over the fiber production process. The resulting fibers are uniquely suitable for a range of healthcare-related applications that are thoroughly discussed in this work, which involve scaffolds for tissue engineering, solid dispersions for drug delivery, antimicrobial meshes for filtration and bandage-like fibrous coverings for wound healing. In this review, the notable recent developments in centrifugal spinning and pressurized gyration are presented and how these technologies are being used to further the range of uses of biomaterials engineering, for example the development of core-sheath fabrication techniques for multi-layered fibers and the combination with electrospinning to produce advanced fiber mats. The enormous potential of these technologies and their future advancements highlights how important they are in the biomedical discipline. This article is categorized under: Implantable Materials and Surgical Technologies > Nanotechnology in Tissue Repair and Replacement Nanotechnology Approaches to Biology > Nanoscale Systems in Biology Biology-Inspired Nanomaterials > Lipid-Based Structures.
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Affiliation(s)
- Jubair Ahmed
- Department of Mechanical Engineering, University College London, London, UK
| | - Merve Gultekinoglu
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, London, UK
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Development of Robust Tablet Formulations with Enhanced Drug Dissolution Profiles from Centrifugally-Spun Micro-Fibrous Solid Dispersions of Itraconazole, a BCS Class II Drug. Pharmaceutics 2023; 15:pharmaceutics15030802. [PMID: 36986664 PMCID: PMC10053999 DOI: 10.3390/pharmaceutics15030802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/16/2023] [Accepted: 02/22/2023] [Indexed: 03/05/2023] Open
Abstract
Fibre-based oral drug delivery systems are an attractive approach to addressing low drug solubility, although clear strategies for incorporating such systems into viable dosage forms have not yet been demonstrated. The present study extends our previous work on drug-loaded sucrose microfibres produced by centrifugal melt spinning to examine systems with high drug loading and investigates their incorporation into realistic tablet formulations. Itraconazole, a model BCS Class II hydrophobic drug, was incorporated into sucrose microfibres at 10, 20, 30, and 50% w/w. Microfibres were exposed to high relative humidity conditions (25 °C/75% RH) for 30 days to deliberately induce sucrose recrystallisation and collapse of the fibrous structure into powdery particles. The collapsed particles were successfully processed into pharmaceutically acceptable tablets using a dry mixing and direct compression approach. The dissolution advantage of the fresh microfibres was maintained and even enhanced after humidity treatment for drug loadings up to 30% w/w and, importantly, retained after compression into tablets. Variations in excipient content and compression force allowed manipulation of the disintegration rate and drug content of the tablets. This then permitted control of the rate of supersaturation generation, allowing the optimisation of the formulation in terms of its dissolution profile. In conclusion, the microfibre-tablet approach has been shown to be a viable method for formulating poorly soluble BCS Class II drugs with improved dissolution performance.
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Pattnaik S, Swain K, Ramakrishna S. Optimal delivery of poorly soluble drugs using electrospun nanofiber technology: Challenges, state of the art, and future directions. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2023; 15:e1859. [PMID: 36193733 DOI: 10.1002/wnan.1859] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 09/11/2022] [Accepted: 09/20/2022] [Indexed: 11/07/2022]
Abstract
Poor aqueous solubility of both, existing drug molecules and those which are currently in the developmental stage, have posed a great challenge to pharmaceutical scientists because they often exhibit poor dissolution behavior and subsequent poor and erratic bioavailability. This has triggered extensive research to explore nanotechnology-based technology platforms for possible rescue. Recently, nanofibers have been exploited widely for diverse biomedical applications including for drug delivery. Electrospun nanofibers are capable of preserving the homogeneously loaded therapeutic agents in amorphous state potentialy impairing devitrification. The present review aims at providing an overview of the various key factors that affect the electrospinning process and characteristics of the nanofibers while fabrication of drug loaded nanofibers for poorly soluble drug candidates. The review explores various methodological advancements in the electrospinning process and set-ups for production scale-up. The various types of electrospun nanofibers (like simple matrix, core-sheath, Janus, and inclusion complex nanofibers) that have been exploited for the delivery of poorly soluble drugs are also critically assessed. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies.
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Affiliation(s)
- Satyanarayan Pattnaik
- Division of Advanced Drug Delivery, Talla Padmavathi College of Pharmacy, Warangal, India
| | - Kalpana Swain
- Division of Advanced Drug Delivery, Talla Padmavathi College of Pharmacy, Warangal, India
| | - Seeram Ramakrishna
- NUS Center for Nanofibers and Nanotechnology, Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
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Heseltine PL, Bayram C, Gultekinoglu M, Homer-Vanniasinkam S, Ulubayram K, Edirisinghe M. Facile One-Pot Method for All Aqueous Green Formation of Biocompatible Silk Fibroin-Poly(Ethylene Oxide) Fibers for Use in Tissue Engineering. ACS Biomater Sci Eng 2022; 8:1290-1300. [PMID: 35232011 PMCID: PMC9096800 DOI: 10.1021/acsbiomaterials.1c01555] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Silk fibroin (SF) fibers are highly regarded in tissue engineering because of their outstanding biocompatibility and tunable properties. A challenge remains in overcoming the trade-off between functioning and biocompatible fibers and the use of cytotoxic, environmentally harmful organic solvents in their processing and formation. The aim of this research was to produce biocompatible SF fibers without the use of cytotoxic solvents, via pressurized gyration (PG). Aqueous SF was blended with poly(ethylene oxide) (PEO) in ratios of 80:20 (labeled SF-PEO 80:20) and 90:10 (labeled SF-PEO 90:10) and spun into fibers using PG, assisted by a range of applied pressures and heat. Pure PEO (labeled PEO-Aq) and SF solubilized in hexafluoro-isopropanol (HFIP) (labeled SF-HFIP) and aqueous SF (labeled SF-Aq) were also prepared for comparison. The resulting fibers were characterized using SEM, TGA, and FTIR. Their in vitro cell behavior was analyzed using a Live/Dead assay and cell proliferation studies with the SaOS-2 human bone osteosarcoma cell line (ATCC, HTB-85) and human fetal osteoblast cells (hFob) (ATCC, CRL-11372) in 2D culture conditions. Fibers in the micrometer range were successfully produced using SF-PEO blends, SF-HFIP, and PEO-Aq. The fiber thickness ranged from 0.71 ± 0.17 μm for fibers produced using SF-PEO 90:10 with no applied pressure to 2.10 ± 0.78 μm for fibers produced using SF-PEO 80:10 with 0.3 MPa applied pressure. FTIR confirmed the presence of SF via amide I and amide II bands in the blend fibers because of a change in structural conformation. No difference was observed in thermogravimetric properties among varying pressures and no significant difference in fiber diameters for pressures. SaOS-2 cells and hFOb cell studies demonstrated higher cell densities and greater live cells on SF-PEO blends when compared to SF-HFIP. This research demonstrates a scalable and green method of producing SF-based constructs for use in bone-tissue engineering applications.
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Affiliation(s)
- Phoebe Louiseanne Heseltine
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
| | - Cem Bayram
- Institute of Science and Technology, Department of Nanotechnology and Nanomedicine, Hacettepe University, Ankara 06800, Turkey
| | - Merve Gultekinoglu
- Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, Hacettepe University, Ankara 06800, Turkey
| | | | - Kezban Ulubayram
- Faculty of Pharmacy, Department of Basic Pharmaceutical Sciences, Hacettepe University, Ankara 06800, Turkey
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, United Kingdom
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Mehta P, Rasekh M, Patel M, Onaiwu E, Nazari K, Kucuk I, Wilson PB, Arshad MS, Ahmad Z, Chang MW. Recent applications of electrical, centrifugal, and pressurised emerging technologies for fibrous structure engineering in drug delivery, regenerative medicine and theranostics. Adv Drug Deliv Rev 2021; 175:113823. [PMID: 34089777 DOI: 10.1016/j.addr.2021.05.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/11/2021] [Accepted: 05/31/2021] [Indexed: 12/16/2022]
Abstract
Advancements in technology and material development in recent years has led to significant breakthroughs in the remit of fiber engineering. Conventional methods such as wet spinning, melt spinning, phase separation and template synthesis have been reported to develop fibrous structures for an array of applications. However, these methods have limitations with respect to processing conditions (e.g. high processing temperatures, shear stresses) and production (e.g. non-continuous fibers). The materials that can be processed using these methods are also limited, deterring their use in practical applications. Producing fibrous structures on a nanometer scale, in sync with the advancements in nanotechnology is another challenge met by these conventional methods. In this review we aim to present a brief overview of conventional methods of fiber fabrication and focus on the emerging fiber engineering techniques namely electrospinning, centrifugal spinning and pressurised gyration. This review will discuss the fundamental principles and factors governing each fabrication method and converge on the applications of the resulting spun fibers; specifically, in the drug delivery remit and in regenerative medicine.
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Affiliation(s)
- Prina Mehta
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Manoochehr Rasekh
- College of Engineering, Design and Physical Sciences, Brunel University London, Middlesex UB8 3PH, UK
| | - Mohammed Patel
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Ekhoerose Onaiwu
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Kazem Nazari
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - I Kucuk
- Institute of Nanotechnology, Gebze Technical University, 41400 Gebze, Turkey
| | - Philippe B Wilson
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell NG25 0QF, UK
| | | | - Zeeshan Ahmad
- Leicester School of Pharmacy, De Montfort University, Leicester LE1 9BH, UK
| | - Ming-Wei Chang
- Nanotechnology and Integrated Bioengineering Centre, University of Ulster, Jordanstown Campus, Newtownabbey, Northern Ireland BT37 0QB, UK.
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Maşlakcı NN. Development and Characterization of Drug‐Loaded PVP/PAN/Gr Electrospun Fibers for Drug Delivery Systems. ChemistrySelect 2021. [DOI: 10.1002/slct.202004176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Neslihan Nohut Maşlakcı
- Department of Pharmacy Services Gelendost Vocational School Isparta University of Applied Sciences 32900 Isparta Turkey
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Topcu B, Gultekinoglu M, Timur SS, Eroglu I, Ulubayram K, Eroglu H. Current approaches and future prospects of nanofibers: a special focus on antimicrobial drug delivery. J Drug Target 2021; 29:563-575. [PMID: 33345641 DOI: 10.1080/1061186x.2020.1867991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Antibacterial nanofibers have a great potential for effective treatment of infections. They act as drug reservoir systems that release higher quantities of antibacterial agents/drug in a controlled manner at infection sites and prevent drug resistance, while concomitantly decreasing the systemic toxicity. With this drug delivery system, it is also possible to achieve multiple drug entrapment and also simultaneous or sequential release kinetics at the site of action. Therefore, advances in antibacterial nanofibers as drug delivery systems were overviewed within this article. Recently published data on antibacterial drug delivery was also summarised to provide a view of the current state of art in this field. Although antibacterial use seems to be limited and one can ask that 'what is left to be discovered?'; recent update literatures in this field highlighted the use of nanofibers from very different perspectives. We believe that readers will be benefiting this review for enlightening of novel ideas.
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Affiliation(s)
- Betul Topcu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Merve Gultekinoglu
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Selin Seda Timur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Ipek Eroglu
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
| | - Kezban Ulubayram
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey.,Department of Nanotechnology and Nanomedicine, Institute of Graduate Studies in Science and Engineering, Ankara, Turkey.,Department of Bioengineering, Institute of Graduate Studies in Science and Engineering, Hacettepe University, Ankara, Turkey
| | - Hakan Eroglu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Hacettepe University, Ankara, Turkey
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Cam ME, Hazar-Yavuz AN, Cesur S, Ozkan O, Alenezi H, Turkoglu Sasmazel H, Sayip Eroglu M, Brako F, Ahmed J, Kabasakal L, Ren G, Gunduz O, Edirisinghe M. A novel treatment strategy for preterm birth: Intra-vaginal progesterone-loaded fibrous patches. Int J Pharm 2020; 588:119782. [PMID: 32822780 DOI: 10.1016/j.ijpharm.2020.119782] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 02/06/2023]
Abstract
Progesterone-loaded poly(lactic) acid fibrous polymeric patches were produced using electrospinning and pressurized gyration for intra-vaginal application to prevent preterm birth. The patches were intravaginally inserted into rats in the final week of their pregnancy, equivalent to the third trimester of human pregnancy. Maintenance tocolysis with progesterone-loaded patches was elucidated by recording the contractile response of uterine smooth muscle to noradrenaline in pregnant rats. Both progesterone-loaded patches indicated similar results from release and thermal studies, however, patches obtained by electrospinning had smaller average diameters and more uniform dispersion compared to pressurized gyration. Patches obtained by pressurized gyration had better results in production yield and tensile strength than electrospinning; thereby pressurized gyration is better suited for scaled-up production. The patches did not affect cell attachment, viability, and proliferation on Vero cells negatively. Consequently, progesterone-loaded patches are a novel and successful treatment strategy for preventing preterm birth.
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Affiliation(s)
- Muhammet Emin Cam
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK; Center for Nanotechnology and Biomaterials Application and Research, Marmara University, Istanbul 34722, Turkey; Department of Pharmacology, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey.
| | - Ayse Nur Hazar-Yavuz
- Department of Pharmacology, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey
| | - Sumeyye Cesur
- Center for Nanotechnology and Biomaterials Application and Research, Marmara University, Istanbul 34722, Turkey; Department of Metallurgy and Material Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Ozan Ozkan
- Department of Metallurgical and Materials Engineering, Faculty of Engineering, Atilim University, 06836 Ankara, Turkey
| | - Hussain Alenezi
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK; Department of Manufacturing Engineering, College of Technological Studies, PAAET, 13092 Kuwait City, Kuwait
| | - Hilal Turkoglu Sasmazel
- Department of Metallurgical and Materials Engineering, Faculty of Engineering, Atilim University, 06836 Ankara, Turkey
| | - Mehmet Sayip Eroglu
- Department of Chemical Engineering, Marmara University, Faculty of Engineering, Goztepe Campus, 34722 Kadikoy/Istanbul, Turkey; TUBITAK-UME, Chemistry Group Laboratories, 41470 Gebze/Kocaeli, Turkey
| | - Francis Brako
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK; School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Jubair Ahmed
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - Levent Kabasakal
- Department of Pharmacology, Faculty of Pharmacy, Marmara University, Istanbul 34668, Turkey
| | - Guogang Ren
- Mechanical and Mechatronics Engineering Division, School of Engineering and Technology, University of Hertfordshire, UK
| | - Oguzhan Gunduz
- Center for Nanotechnology and Biomaterials Application and Research, Marmara University, Istanbul 34722, Turkey; Department of Metallurgy and Material Engineering, Faculty of Technology, Marmara University, Istanbul 34722, Turkey
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK.
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De Mohac LM, Caruana R, Cavallaro G, Giammona G, Licciardi M. Spray-Drying, Solvent-Casting and Freeze-Drying Techniques: a Comparative Study on their Suitability for the Enhancement of Drug Dissolution Rates. Pharm Res 2020; 37:57. [PMID: 32076880 DOI: 10.1007/s11095-020-2778-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 02/03/2020] [Indexed: 10/25/2022]
Abstract
PURPOSE Solid dispersions (SDs) represent the most common formulation technique used to increase the dissolution rate of a drug. In this work, the three most common methods used to prepare SDs, namely spray-drying, solvent-casting and freeze-drying, have been compared in order to investigate their effect on increasing drug dissolution rate. METHODS Three formulation strategies were used to prepare a polymer mixture of polyvinyl-alcohol (PVA) and maltodextrin (MDX) as SDs loaded with the following three model drugs, all of which possess a poor solubility: Olanzapine, Dexamethasone, and Triamcinolone acetonide. The SDs obtained were analysed and compared in terms of drug particle size, drug-loading capacity, surface homogeneity, and dissolution profile enhancement. Physical-chemical characterisation was conducted on pure drugs, as well as the formulations made, by way of thermal analysis and infrared spectroscopy. RESULT The polymers used were able to increase drug saturation solubility. The formulation strategies affected the drug particle size, with the solvent-casting method resulting in more homogenous particle size and distribution when compared to the other methods. The greatest enhancement in the drug dissolution rate was seen for all the samples prepared using the solvent-casting method. CONCLUSION All of the methods used were able to increase the dissolution rate of the pure drugs alone, however, the solvent-casting method produced SDs with a higher surface homogeneity, drug incorporation capability, and faster dissolution profile than the other techniques.
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Affiliation(s)
- Laura Modica De Mohac
- Dipartimento di Scienze per la promozione della Salute e Materno Infantile "Giuseppe D'Alessandro", Palermo, Italy
| | - Roberto Caruana
- Advanced Technologies Network Center (ATeN Center), University of Palermo, Viale Delle Scienze - Edificio, 18 - 90128, Palermo, Italy
| | - Gennara Cavallaro
- Laboratory of Biocompatible Polymers, Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Via Archirafi, 32 - 90123, Palermo, Italy
| | - Gaetano Giammona
- Laboratory of Biocompatible Polymers, Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Via Archirafi, 32 - 90123, Palermo, Italy
| | - Mariano Licciardi
- Laboratory of Biocompatible Polymers, Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Via Archirafi, 32 - 90123, Palermo, Italy.
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In vitro and in vivo characterization of domperidone-loaded fast dissolving buccal films. Saudi Pharm J 2020; 28:266-273. [PMID: 32194327 PMCID: PMC7078569 DOI: 10.1016/j.jsps.2020.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 01/19/2020] [Indexed: 12/14/2022] Open
Abstract
The delivery of drugs via fast dissolving films is an effective alternative for drugs with low bioavailability when administered by other routes. This is the case of domperidone (DMP) an anti-emetic drug with low water solubility and vulnerable to extensive first-pass effect. To overcome these limitations, in this work, we designed and produced fast dissolving muco-adhesive buccal films of domperidone using varying amount polyvinylpyrrolidone (PVP K-90) using the solvent casting method. Films loaded with more than 10% of drug were not homogenous and opaque as indicated by white patches of drug in the film matrix. Formulation of DMP in the film form resulted in conversion of the drug from crystalline state to the semi-crystalline state as indicated by X-ray powder diffraction analysis. Moreover, about 40% of drug loaded within the films was released during the first five minutes compared to only about only 6.5% of pure drug in drug dissolution assays in vitro. In vivo pharmacokinetics analysis revealed that the DMP-loaded film had higher maximum plasma concentration (Cmax) and shorter time to reach Cmax (Tmax) than a commercially available tablet formulation. In conclusion, the produced DMP buccal film formulation showed high absorption rate, rapid onset of action, and improved bioavailability compared with the conventional tablet. Our findings may support the development of novel dosage forms for the transmucosal delivery of DMP for convenient, rapid, and effective treatment of nausea and vomiting.
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Scale‐up of electrospinning technology: Applications in the pharmaceutical industry. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2019; 12:e1611. [DOI: 10.1002/wnan.1611] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 01/25/2023]
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Lan S, Lu Y, Li C, Zhao S, Liu N, Sheng X. Sesbania Gum-Supported Hydrophilic Electrospun Fibers Containing Nanosilver with Superior Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E592. [PMID: 30974842 PMCID: PMC6523858 DOI: 10.3390/nano9040592] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/04/2019] [Accepted: 04/05/2019] [Indexed: 11/16/2022]
Abstract
In this contribution, we report for the first time on a new strategy for developing sesbania gum-supported hydrophilic fibers containing nanosilver using electrospinning (SG-Ag/PAN electrospun fibers), which gives the fibers superior antibacterial activity. Employing a series of advanced technologies-scanning electron microscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, UV-visible absorption spectroscopy, X-ray photoelectron spectroscopy, and contact angle testing-we characterized the as-synthesized SG-Ag/PAN electrospun fibers in terms of morphology, size, surface state, chemical composition, and hydrophilicity. By adjusting the synthesis conditions, in particular the feed ratio of sesbania gum (SG) and polyacrylonitrile (PAN) to Ag nanoparticles (NPs), we regulated the morphology and size of the as-electrospun fibers. The fibers' antibacterial properties were examined using the colony-counting method with two model bacteria: Escherichia coli (a Gram-negative bacterium) and Staphylococcus aureus (a Gram-positive bacterium). Interestingly, compared to Ag/PAN and SG-PAN electrospun fibers, the final SG-Ag/PAN showed enhanced antibacterial activity towards both of the model bacteria due to the combination of antibacterial Ag NPs and hydrophilic SG, which enabled the fibers to have sufficient contact with the bacteria. We believe this strategy has great potential for applications in antibacterial-related fields.
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Affiliation(s)
- Shi Lan
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Yaning Lu
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Chun Li
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Shuang Zhao
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Naren Liu
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
| | - Xianliang Sheng
- College of Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
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13
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Modica de Mohac L, Keating AV, de Fátima Pina M, Raimi-Abraham BT. Engineering of Nanofibrous Amorphous and Crystalline Solid Dispersions for Oral Drug Delivery. Pharmaceutics 2018; 11:E7. [PMID: 30586871 PMCID: PMC6359107 DOI: 10.3390/pharmaceutics11010007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 10/12/2018] [Accepted: 10/19/2018] [Indexed: 02/07/2023] Open
Abstract
Poor aqueous solubility (<0.1 mg/mL) affects a significant number of drugs currently on the market or under development. Several formulation strategies including salt formation, particle size reduction, and solid dispersion approaches have been employed with varied success. In this review, we focus primarily on the emerging trends in the generation of amorphous and micro/nano-crystalline solid dispersions using electrospinning to improve the dissolution rate and in turn the bioavailability of poorly water-soluble drugs. Electrospinning is a simple but versatile process that utilizes electrostatic forces to generate polymeric fibers and has been used for over 100 years to generate synthetic fibers. We discuss the various electrospinning studies and spinneret types that have been used to generate amorphous and crystalline solid dispersions.
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Affiliation(s)
- Laura Modica de Mohac
- DIBIMIS Department, University of Study of Palermo, 90128 Palermo, Italy.
- Drug Delivery Group, Institute of Pharmaceutical Science Faculty of Life Sciences and Medicine, King's College London, London SE1 9NH, UK.
| | - Alison Veronica Keating
- Drug Delivery Group, Institute of Pharmaceutical Science Faculty of Life Sciences and Medicine, King's College London, London SE1 9NH, UK.
| | - Maria de Fátima Pina
- Department of Pharmaceutics, University College London School of Pharmacy, London WC1N 1AX, UK.
| | - Bahijja Tolulope Raimi-Abraham
- Drug Delivery Group, Institute of Pharmaceutical Science Faculty of Life Sciences and Medicine, King's College London, London SE1 9NH, UK.
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14
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Fülöp G, Balogh A, Farkas B, Farkas A, Szabó B, Démuth B, Borbás E, Nagy ZK, Marosi G. Homogenization of Amorphous Solid Dispersions Prepared by Electrospinning in Low-Dose Tablet Formulation. Pharmaceutics 2018; 10:pharmaceutics10030114. [PMID: 30072667 PMCID: PMC6161125 DOI: 10.3390/pharmaceutics10030114] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/23/2018] [Accepted: 07/23/2018] [Indexed: 12/20/2022] Open
Abstract
Low-dose tablet formulations were produced with excellent homogeneity based on drug-loaded electrospun fibers prepared by single-needle as well as scaled-up electrospinning (SNES and HSES). Carvedilol (CAR), a BCS II class compound, served as the model drug while poly (vinylpyrrolidone-co-vinyl acetate) (PVPVA64) was adopted as the fiber-forming polymer. Scanning electron microscopy (SEM) imaging was used to study the morphology of HSES and SNES samples. Different homogenization techniques were compared to maximize homogeneity: mixing in plastic bags and in a high-shear granulator resulting in low-shear mixing (LSM) and high-shear mixing (HSM). Drug content and homogeneity of the tablets were measured by UV-Vis spectrometry, the results revealed acceptably low-dose fluctuations especially with formulations homogenized with HSM. Sieve analysis was used on the final LSM and HSM powder mixtures in order to elucidate the observed differences between tablet homogeneity. Tablets containing drug-loaded electrospun fibers were also studied by Raman mapping demonstrating evenly distributed CAR within the corpus.
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Affiliation(s)
- Gergő Fülöp
- Gedeon Richter Plc., Formulation R&D, Gyömrői Street 19-21, H-1103 Budapest, Hungary.
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Attila Balogh
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Balazs Farkas
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Attila Farkas
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Bence Szabó
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Balázs Démuth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Enikő Borbás
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - Zsombor Kristóf Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
| | - György Marosi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budafoki út 8. 3, H-1103 Budapest, Hungary.
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15
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Brako F, Thorogate R, Mahalingam S, Raimi-Abraham B, Craig DQM, Edirisinghe M. Mucoadhesion of Progesterone-Loaded Drug Delivery Nanofiber Constructs. ACS APPLIED MATERIALS & INTERFACES 2018; 10:13381-13389. [PMID: 29595052 DOI: 10.1021/acsami.8b03329] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Mucoadhesive delivery systems have attracted remarkable interest recently, especially for their potential to prolong dosage form resident times at sites of application such as the vagina or nasal cavity, thereby improving convenience and compliance as a result of less frequent dosage. Mucoadhesive capabilities need to be routinely quantified during the development of these systems. This is however logistically challenging due to difficulties in obtaining and preparing viable mucosa tissues for experiments. Utilizing artificial membranes as a suitable alternative for quicker and easier analyses of mucoadhesion of these systems is currently being explored. In this study, the mucoadhesive interactions between progesterone-loaded fibers (with varying carboxymethyl cellulose (CMC) content) and either artificial (cellulose acetate) or mucosa membranes are investigated by texture analysis and results across models are compared. Mucoadhesion to artificial membrane was about 10 times that of mucosa, though statistically significant ( p = 0.027) association between the 2 data sets was observed. Furthermore, a hypothesis relating fiber-mucosa interfacial roughness (and unfilled void spaces on mucosa) to mucoadhesion, deduced from some classical mucoadhesion theories, was tested to determine its validity. Points of interaction between the fiber and mucosa membrane were examined using atomic force microscopy (AFM) to determine the depths of interpenetration and unfilled voids/roughness, features crucial to mucoadhesion according to the diffusion and mechanical theories of mucoadhesion. A Kendall's tau and Goodman-Kruskal's gamma tests established a monotonic relationship between detaching forces and roughness, significant with p-values of 0.014 and 0.027, respectively. A similar relationship between CMC concentration and interfacial roughness was also confirmed. We conclude that AFM analysis of surface geometry following mucoadhesion can be explored for quantifying mucoadhesion as data from interfacial images correlates significantly with corresponding detaching forces, a well-established function of mucoadhesion.
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Affiliation(s)
- Francis Brako
- Department of Mechanical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
- School of Pharmacy , University College London , 29-39 Brunswick Square , London WC1N 1AX , U.K
| | - Richard Thorogate
- London Nanotechnology Centre , 19 Gordon Street, Bloomsbury , London WC1H 0AH , U.K
| | | | - Bahijja Raimi-Abraham
- School of Pharmacy , University College London , 29-39 Brunswick Square , London WC1N 1AX , U.K
| | - Duncan Q M Craig
- School of Pharmacy , University College London , 29-39 Brunswick Square , London WC1N 1AX , U.K
| | - Mohan Edirisinghe
- Department of Mechanical Engineering , University College London , Torrington Place , London WC1E 7JE , U.K
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16
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Alginate as a potential diphase solid dispersion carrier with enhanced drug dissolution and improved storage stability. Eur J Pharm Sci 2018; 114:346-355. [DOI: 10.1016/j.ejps.2017.12.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 12/07/2017] [Accepted: 12/29/2017] [Indexed: 01/01/2023]
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17
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Parhizkar M, Mahalingam S, Homer-Vanniasinkam S, Edirisinghe M. Latest developments in innovative manufacturing to combine nanotechnology with healthcare. Nanomedicine (Lond) 2018; 13:5-8. [DOI: 10.2217/nnm-2017-0283] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Maryam Parhizkar
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
| | | | - Shervanthi Homer-Vanniasinkam
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
- Leeds Vascular Institute Leeds General Infirmary, Great George Street, Leeds, LS1 3EX, UK
- Division of Surgery, University of Warwick & University Hospitals Coventry & Warwickshire NHS Trust, Clifford Bridge Rd, Coventry, CV2 2DX, UK
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London, WC1E 7JE, UK
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18
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Illangakoon UE, Mahalingam S, Matharu RK, Edirisinghe M. Evolution of Surface Nanopores in Pressurised Gyrospun Polymeric Microfibers. Polymers (Basel) 2017; 9:polym9100508. [PMID: 30965811 PMCID: PMC6418950 DOI: 10.3390/polym9100508] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 10/02/2017] [Accepted: 10/06/2017] [Indexed: 01/09/2023] Open
Abstract
The selection of a solvent or solvent system and the ensuing polymer–solvent interactions are crucial factors affecting the preparation of fibers with multiple morphologies. A range of poly(methylmethacrylate) fibers were prepared by pressurised gyration using acetone, chloroform, N,N-dimethylformamide (DMF), ethyl acetate and dichloromethane as solvents. It was found that microscale fibers with surface nanopores were formed when using chloroform, ethyl acetate and dichloromethane and poreless fibers were formed when using acetone and DMF as the solvent. These observations are explained on the basis of the physical properties of the solvents and mechanisms of pore formation. The formation of porous fibers is caused by many solvent properties such as volatility, solubility parameters, vapour pressure and surface tension. Cross-sectional images show that the nanopores are only on the surface of the fibers and they were not inter-connected. Further, the results show that fibers with desired nanopores (40–400 nm) can be prepared by carefully selecting the solvent and applied pressure in the gyration process.
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Affiliation(s)
- U Eranka Illangakoon
- Department of Mechanical Engineering, University College London, London WC1E 7JE, UK.
| | | | - Rupy K Matharu
- Department of Mechanical Engineering, University College London, London WC1E 7JE, UK.
| | - Mohan Edirisinghe
- Department of Mechanical Engineering, University College London, London WC1E 7JE, UK.
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19
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Rahoui N, Jiang B, Taloub N, Huang YD. Spatio-temporal control strategy of drug delivery systems based nano structures. J Control Release 2017; 255:176-201. [DOI: 10.1016/j.jconrel.2017.04.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/30/2017] [Accepted: 04/03/2017] [Indexed: 12/21/2022]
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20
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Edueng K, Mahlin D, Bergström CAS. The Need for Restructuring the Disordered Science of Amorphous Drug Formulations. Pharm Res 2017; 34:1754-1772. [PMID: 28523384 PMCID: PMC5533858 DOI: 10.1007/s11095-017-2174-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 05/01/2017] [Indexed: 11/25/2022]
Abstract
The alarming numbers of poorly soluble discovery compounds have centered the efforts towards finding strategies to improve the solubility. One of the attractive approaches to enhance solubility is via amorphization despite the stability issue associated with it. Although the number of amorphous-based research reports has increased tremendously after year 2000, little is known on the current research practice in designing amorphous formulation and how it has changed after the concept of solid dispersion was first introduced decades ago. In this review we try to answer the following questions: What model compounds and excipients have been used in amorphous-based research? How were these two components selected and prepared? What methods have been used to assess the performance of amorphous formulation? What methodology have evolved and/or been standardized since amorphous-based formulation was first introduced and to what extent have we embraced on new methods? Is the extent of research mirrored in the number of marketed amorphous drug products? We have summarized the history and evolution of amorphous formulation and discuss the current status of amorphous formulation-related research practice. We also explore the potential uses of old experimental methods and how they can be used in tandem with computational tools in designing amorphous formulation more efficiently than the traditional trial-and-error approach.
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Affiliation(s)
- Khadijah Edueng
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden
- Kulliyyah of Pharmacy,, International Islamic University Malaysia, Jalan Istana, 25200, Bandar Indera Mahkota, Pahang, Malaysia
| | - Denny Mahlin
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden.
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21
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Eranka Illangakoon U, Mahalingam S, Wang K, Cheong YK, Canales E, Ren G, Cloutman-Green E, Edirisinghe M, Ciric L. Gyrospun antimicrobial nanoparticle loaded fibrous polymeric filters. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 74:315-324. [DOI: 10.1016/j.msec.2016.12.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 12/04/2016] [Indexed: 11/26/2022]
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22
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Hirai D, Iwao Y, Kimura SI, Noguchi S, Itai S. Mathematical model to analyze the dissolution behavior of metastable crystals or amorphous drug accompanied with a solid-liquid interface reaction. Int J Pharm 2017; 522:58-65. [DOI: 10.1016/j.ijpharm.2017.02.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/30/2017] [Accepted: 02/19/2017] [Indexed: 12/22/2022]
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23
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Vigh T, Démuth B, Balogh A, Galata DL, Van Assche I, Mackie C, Vialpando M, Van Hove B, Psathas P, Borbás E, Pataki H, Boeykens P, Marosi G, Verreck G, Nagy ZK. Oral bioavailability enhancement of flubendazole by developing nanofibrous solid dosage forms. Drug Dev Ind Pharm 2017; 43:1126-1133. [DOI: 10.1080/03639045.2017.1298121] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Tamás Vigh
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Balázs Démuth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Attila Balogh
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Dorián L. Galata
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | | | - Claire Mackie
- Drug Product Development, Janssen R&D, Beerse, Belgium
| | | | - Ben Van Hove
- Drug Product Development, Janssen R&D, Beerse, Belgium
| | | | - Enikő Borbás
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Hajnalka Pataki
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | | | - György Marosi
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
| | - Geert Verreck
- Drug Product Development, Janssen R&D, Beerse, Belgium
| | - Zsombor K. Nagy
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Budapest, Hungary
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24
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Modica de Mohac L, de Fátima Pina M, Raimi-Abraham BT. Solid microcrystalline dispersion films as a new strategy to improve the dissolution rate of poorly water soluble drugs: A case study using olanzapine. Int J Pharm 2016; 508:42-50. [DOI: 10.1016/j.ijpharm.2016.05.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 04/28/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
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25
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Qi S, Craig D. Recent developments in micro- and nanofabrication techniques for the preparation of amorphous pharmaceutical dosage forms. Adv Drug Deliv Rev 2016; 100:67-84. [PMID: 26776230 DOI: 10.1016/j.addr.2016.01.003] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Accepted: 01/03/2016] [Indexed: 12/27/2022]
Abstract
Nano- and microfabrication techniques have been widely explored in the textile, polymer and biomedical arenas, although more recently these systems have attracted considerable interest as drug delivery vehicles with concomitant considerations of physical characterization, scalability, stability and drug release. In this review, the current thinking with regards to the manufacture of solid amorphous pharmaceutical materials using electrohydrodynamic and gyration-based approaches, melt-spinning approaches, thermal moulding, inkjet printing and 3D printing will be examined in the context of their potential and actual viability as dosage forms. A series of practical examples will be discussed as to how these approaches have been used as means of producing drug delivery systems for a range of delivery systems and treatments.
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Affiliation(s)
- Sheng Qi
- School of Pharmacy, University of East Anglia, Norwich, Norfolk, NR4 7TJ, UK
| | - Duncan Craig
- UCL School of Pharmacy, 29-39 Brunswick Square, London, WC1N 1AX, UK
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