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Gungor B, Erdogan H, Suner SS, Silan C, Saraydin SU, Sahiner N. Drug-impregnated contact lenses via supercritical carbon dioxide: A viable solution for the treatment of bacterial and fungal keratitis. Int J Pharm 2024; 662:124505. [PMID: 39059520 DOI: 10.1016/j.ijpharm.2024.124505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/05/2024] [Accepted: 07/20/2024] [Indexed: 07/28/2024]
Abstract
Keratitis is a corneal infection caused by various bacteria and fungi. Eye drop treatment of keratitis involves significant challenges due to difficulties in administration, inefficiencies in therapeutic dosage, and frequency of drug applications. All these are troublesome and result in unsuccessful treatment, high cost, time loss, development of drug resistance by microorganisms, and a massive burden on human health and the healthcare system. Most of the antibacterial and antifungal medications are non-water-soluble and/or include toxic drug formulations. Here, the aim was to develop drug-loaded contact lenses with therapeutic dosage formulations and extended drug release capability as an alternative to eye drops, by employing supercritical carbon dioxide (ScCO2) as a drug impregnation solvent to overcome inefficient ophthalmic drug use. ScCO2, known as a green solvent, has very low viscosity which provides high mass transfer power and could enhance drug penetration into contact lenses much better with respect to drug loading using other solvents. Here, moxifloxacin (MOX) antibiotic and amphotericin B (AMB) antifungal medicines were separately loaded into commercially available silicone hydrogel contact lenses through 1) drug adsorption from the aqueous solutions and 2) impregnation techniques via ScCO2 and their efficacies were compared. Drug impregnation parameters, i.e., 8-25 MPa pressure, 310-320 K temperature, 2-16-hour impregnation times, and the presence of ethanol as polar co-solvent were investigated for the optimization of the ScCO2 drug impregnation process. The highest drug loading and long-term release kinetic from the contact lenses were obtained at 25 MPa and 313 K with 2.5 h impregnation time by using 1 % ethanol (by volume). Furthermore, antibacterial/antifungal activities of the MOX- and AMB-impregnated contact lenses were effective against in vitro Pseudomonas aeruginosa (ATCC 10145) bacteria and Fusarium solani (ATCC 36031) fungus for up to one week. Consequently, the ScCO2 method can be effectively used to impregnate commercial contact lenses with drugs, and these can then be safely used for the treatment of keratitis. This offers a sustainable delivery system at effective dosage formulations with complete bacterial/fungal inhibition and termination, making it viable for real animal/human applications.
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Affiliation(s)
- Buket Gungor
- Department of Pharmacology, Faculty of Medicine, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Hakika Erdogan
- Department of Ophthalmology, Faculty of Medicine, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Selin S Suner
- Department of Chemistry, Faulty of Science, Canakkale Onsekiz Mart University, Canakkale 17100, Turkey
| | - Coskun Silan
- Department of Pharmacology, Faculty of Medicine, Canakkale Onsekiz Mart University Terzioglu Campus, Canakkale 17100, Turkey
| | - Serpil U Saraydin
- Department of Histology, Faculty of Medicine, Cumhuriyet University, Sivas 58140, Turkey
| | - Nurettin Sahiner
- Department of Chemistry, Faulty of Science, Canakkale Onsekiz Mart University, Canakkale 17100, Turkey; Department of Ophthalmology, Morsani College of Medicine, University of South Florida, 12901 Bruce B Downs B. Downs Blv., MDC 21, Tampa, FL 33612, USA; Department of Chemical and Biomolecular Engineering, University of South Florida, Tampa, FL 33620, USA.
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Rivera P, Torres A, Romero J, Alarcón Á, Martínez S, Arrieta MP, Rodríguez-Mercado F, Galotto MJ. Effect of Operational Variables on Supercritical Foaming of Caffeic Acid-Loaded Poly(lactic acid)/Poly(butylene adipate-co-terephthalate) Blends for the Development of Sustainable Materials. Polymers (Basel) 2024; 16:948. [PMID: 38611209 PMCID: PMC11013249 DOI: 10.3390/polym16070948] [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: 01/02/2024] [Revised: 03/03/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
Expanded polystyrene will account for 5.3% of total global plastic production in 2021 and is widely used for food packaging due to its excellent moisture resistance and thermal insulation. However, some of these packages are often used only once before being discarded, generating large amounts of environmentally harmful plastic waste. A very attractive alternative to the conventional methods used for polymer processing is the use of supercritical carbon dioxide (scCO2) since it has mass-transfer properties adapted to the foam morphology, generating different path lengths for the diffusion of active compounds within its structure and can dissolve a wide range of organic molecules under supercritical conditions. The objective of this research was to evaluate the effect of operational variables on the process of caffeic acid (CA) impregnation and subsequent foaming of polylactic acid (PLA) as well as two PLA/poly(butylene-co-terephthalate-adipate) (PBAT) blends using scCO2. The results showed an increase in the degree of crystallinity of the CA-impregnated samples due to the nucleation effect of the active compound. On the other hand, SEM micrographs of both films and foams showed significant differences due to the presence of PBAT and its low miscibility with PLA. Finally, the results obtained in this work contribute to the knowledge of the important parameters to consider for the implementation of the impregnation and foaming process of PLA and PLA/PBAT blends with potential use in food packaging.
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Affiliation(s)
- Patricia Rivera
- Packaging Innovation Center (LABEN), Technology Faculty, Center for the Development of Nanoscience and Nanotechnology CEDENNA, University of Santiago de Chile (USACH), Santiago 9170201, Chile; (P.R.); (Á.A.); (S.M.); (F.R.-M.); (M.J.G.)
- Laboratory of Membrane Separation Processes (LabProSeM), Department of Chemical Engineering, Engineering Faculty, University of Santiago de Chile, Santiago 9170201, Chile;
| | - Alejandra Torres
- Packaging Innovation Center (LABEN), Technology Faculty, Center for the Development of Nanoscience and Nanotechnology CEDENNA, University of Santiago de Chile (USACH), Santiago 9170201, Chile; (P.R.); (Á.A.); (S.M.); (F.R.-M.); (M.J.G.)
| | - Julio Romero
- Laboratory of Membrane Separation Processes (LabProSeM), Department of Chemical Engineering, Engineering Faculty, University of Santiago de Chile, Santiago 9170201, Chile;
| | - Álvaro Alarcón
- Packaging Innovation Center (LABEN), Technology Faculty, Center for the Development of Nanoscience and Nanotechnology CEDENNA, University of Santiago de Chile (USACH), Santiago 9170201, Chile; (P.R.); (Á.A.); (S.M.); (F.R.-M.); (M.J.G.)
- Laboratory of Membrane Separation Processes (LabProSeM), Department of Chemical Engineering, Engineering Faculty, University of Santiago de Chile, Santiago 9170201, Chile;
| | - Sara Martínez
- Packaging Innovation Center (LABEN), Technology Faculty, Center for the Development of Nanoscience and Nanotechnology CEDENNA, University of Santiago de Chile (USACH), Santiago 9170201, Chile; (P.R.); (Á.A.); (S.M.); (F.R.-M.); (M.J.G.)
| | - Marina P. Arrieta
- Departamento de Ingeniería Química Industrial y del Medio Ambiente, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid (ETSII-UPM), Calle José Gutiérrez Abascal 2, 28006 Madrid, Spain;
- Grupo de Investigación, Polímeros, Caracterización y Aplicaciones (POLCA), 28006 Madrid, Spain
| | - Francisco Rodríguez-Mercado
- Packaging Innovation Center (LABEN), Technology Faculty, Center for the Development of Nanoscience and Nanotechnology CEDENNA, University of Santiago de Chile (USACH), Santiago 9170201, Chile; (P.R.); (Á.A.); (S.M.); (F.R.-M.); (M.J.G.)
| | - María José Galotto
- Packaging Innovation Center (LABEN), Technology Faculty, Center for the Development of Nanoscience and Nanotechnology CEDENNA, University of Santiago de Chile (USACH), Santiago 9170201, Chile; (P.R.); (Á.A.); (S.M.); (F.R.-M.); (M.J.G.)
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Valor D, García-Casas I, Montes A, Danese E, Pereyra C, de la Ossa EM. Supercritical Impregnation of Mangifera indica Leaves Extracts into Porous Conductive PLGA-PEDOT Scaffolds. Polymers (Basel) 2023; 16:133. [PMID: 38201798 PMCID: PMC10780670 DOI: 10.3390/polym16010133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 12/26/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Plant leaves, such as those from Mangifera indica, represent a potential utilization of waste due to their richness in bioactive compounds. Supercritical CO2 allows these compounds to be incorporated into various matrices by impregnation. Combined with its ability to generate polymeric scaffolds, it represents an attractive strategy for the production of biomedical devices. For this purpose, conjugated polymeric scaffolds of biodegradable PLGA (poly(lactic-co-glycolic acid)) and PEDOT:PSS (poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)), generated in situ by foaming, were employed for the supercritical impregnation of ethanolic mango leaves extract (MLE) in tissue engineering as a potential application. The extraction of MLE was performed by Enhanced Solvent Extraction. The effects of pressure (120-300 bar), temperature (35-55 °C), and depressurization rate (1-50 bar/min) on the physical/conductive properties and the impregnation of MLE were studied. The scaffolds have been characterized by liquid displacement, scanning electron microscope, resistance to conductivity techniques, measurements of impregnated load, antioxidant capacity and antimicrobial activity. Porosity values ranging 9-46% and conductivity values between 10-4-10-5 S/cm were obtained. High pressures, low temperatures and rapid depressurization favored the impregnation of bioactive compounds. Scaffolds with remarkable antioxidant activity were obtained (75.2-87.3% oxidation inhibition), demonstrating the ability to inhibit S. aureus bacterial growth (60.1 to 71.4%).
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Affiliation(s)
- Diego Valor
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, International Excellence Agrifood Campus (CeiA3), University of Cádiz, 11510 Puerto Real, Spain; (D.V.); (I.G.-C.); (C.P.); (E.M.d.l.O.)
| | - Ignacio García-Casas
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, International Excellence Agrifood Campus (CeiA3), University of Cádiz, 11510 Puerto Real, Spain; (D.V.); (I.G.-C.); (C.P.); (E.M.d.l.O.)
| | - Antonio Montes
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, International Excellence Agrifood Campus (CeiA3), University of Cádiz, 11510 Puerto Real, Spain; (D.V.); (I.G.-C.); (C.P.); (E.M.d.l.O.)
| | - Ella Danese
- Faculty of Chemistry and Technology, University of Split, 21000 Split, Croatia;
| | - Clara Pereyra
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, International Excellence Agrifood Campus (CeiA3), University of Cádiz, 11510 Puerto Real, Spain; (D.V.); (I.G.-C.); (C.P.); (E.M.d.l.O.)
| | - Enrique Martínez de la Ossa
- Department of Chemical Engineering and Food Technology, Faculty of Sciences, International Excellence Agrifood Campus (CeiA3), University of Cádiz, 11510 Puerto Real, Spain; (D.V.); (I.G.-C.); (C.P.); (E.M.d.l.O.)
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Murakami Y, Inoue K, Akiyama R, Orita Y, Shimoyama Y. LipTube: Liposome Formation in the Tube Process Using Supercritical CO 2. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuya Murakami
- Department of Industrial Chemistry, Tokyo University of Science, 6-3-1 Niijuku, Katsushika-ku, Tokyo125-8585, Japan
| | - Keita Inoue
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1 S1-33, Meguro-ku, Tokyo152-8550, Japan
| | - Ryunosuke Akiyama
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1 S1-33, Meguro-ku, Tokyo152-8550, Japan
| | - Yasuhiko Orita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1 S1-33, Meguro-ku, Tokyo152-8550, Japan
| | - Yusuke Shimoyama
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, Ookayama 2-12-1 S1-33, Meguro-ku, Tokyo152-8550, Japan
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Supercritical Fluid Technologies for the Incorporation of Synthetic and Natural Active Compounds into Materials for Drug Formulation and Delivery. Pharmaceutics 2022; 14:pharmaceutics14081670. [PMID: 36015296 PMCID: PMC9413081 DOI: 10.3390/pharmaceutics14081670] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 08/05/2022] [Accepted: 08/07/2022] [Indexed: 11/25/2022] Open
Abstract
Various active compounds isolated from natural sources exhibit remarkable benefits, making them attractive for pharmaceutical and biomedical applications, such as antioxidant, antimicrobial, and anti-inflammatory activities, which contribute to the treatment of cardiovascular diseases, neurodegenerative disorders, various types of cancer, diabetes, and obesity. However, their major drawbacks are their reactivity, instability, relatively poor water solubility, and consequently low bioavailability. Synthetic drugs often face similar challenges associated with inadequate solubility or burst release in gastrointestinal media, despite being otherwise a safe and effective option for the treatment of numerous diseases. Therefore, drug-eluting pharmaceutical formulations have been of great importance over the years in efforts to improve the bioavailability of active compounds by increasing their solubility and achieving their controlled release in body media. This review highlights the success of the fabrication of micro- and nanoformulations using environmentally friendly supercritical fluid technologies for the processing and incorporation of active compounds. Several novel approaches, namely micronization to produce micro- and nano-sized particles, supercritical drying to produce aerogels, supercritical foaming, and supercritical solvent impregnation, are described in detail, along with the currently available drug delivery data for these formulations.
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Lee K, Lee G, Lee S, Park CY. Advances in ophthalmic drug delivery technology for postoperative management after cataract surgery. Expert Opin Drug Deliv 2022; 19:945-964. [PMID: 35917497 DOI: 10.1080/17425247.2022.2109624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Cataract surgery is becoming more common due to an aging world population. Intraocular lenses and surgical technique have developed remarkably recently, but the development of postoperative medication to prevent postsurgery complications has been relatively delayed. We still largely depend on eye drops for the management of post-cataract-surgery patients. Mental and physical problems that often occur in elderly cataract patients make it difficult for patients to apply eye drops by themselves. It is necessary to develop new effective drug delivery methods. AREAS COVERED This updated review article provides a brief review of why drug management is needed following cataract surgery and an overview of current developments in new drug delivery methods for ophthalmic treatment. In particular, various novel drug delivery methods that can be used for post-cataract-surgery management and their current development stages are extensively reviewed. EXPERT OPINION Rapidly developing technologies, such as intraocular and external ophthalmic implants, polymers, and nanotechnology, are being actively applied to develop novel drug delivery systems for safe and effective management after cataract surgery. Their goal is to achieve sufficient drug release for the desired duration with a single application. These will largely replace the inconvenience of eye drops for elderly patients in the future.
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Affiliation(s)
- Kangmin Lee
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
| | - Gahye Lee
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
| | - Soomin Lee
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
| | - Choul Yong Park
- Department of Ophthalmology, Dongguk University, Ilsan Hospital, Goyang, South Korea
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7
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Preparation of ROS-responsive drug-loaded hydrogels applied in wound dressings using supercritical solvent impregnation. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2022.105682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Pereira-da-Mota AF, Phan CM, Concheiro A, Jones L, Alvarez-Lorenzo C. Testing drug release from medicated contact lenses: The missing link to predict in vivo performance. J Control Release 2022; 343:672-702. [DOI: 10.1016/j.jconrel.2022.02.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 12/13/2022]
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Carvalho VS, Dias ALB, Rodrigues KP, Hatami T, Mei LHI, Martínez J, Viganó J. Supercritical fluid adsorption of natural extracts: Technical, practical, and theoretical aspects. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2021.101865] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Tyrka M, Nowak M, Misic D, Półbrat T, Koter S, Trusek A, Zizovic I. Cellulose Acetate Membranes Modification by Aminosilane Grafting in Supercritical Carbon Dioxide towards Antibiofilm Properties. MEMBRANES 2021; 12:33. [PMID: 35054559 PMCID: PMC8781017 DOI: 10.3390/membranes12010033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/17/2021] [Accepted: 12/22/2021] [Indexed: 11/16/2022]
Abstract
The study explores the grafting of cellulose acetate microfiltration membranes with an aminosilane to attain antibiofilm properties. The grafting reaction was performed in the supercritical carbon dioxide used as a transport and reaction medium. The FTIR analyses and dissolution tests confirmed the covalent bonding between the aminosilane and polymer. The membranes' microstructure was investigated using a dual-beam SEM and ion microscopy, and no adverse effects of the processing were found. The modified membranes showed a more hydrophilic nature and larger water permeate flow rate than the neat cellulose acetate membranes. The tests in a cross-filtration unit showed that modified membranes were considerably less blocked after a week of exposure to Staphylococcus aureus and Escherichia coli than the original ones. Microbiological investigations revealed strong antibiofilm properties of the grafted membranes in experiments with Staphylococcus aureus, Listeria monocytogenes, Escherichia coli, and Salmonella Enteritidis.
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Affiliation(s)
- Marcin Tyrka
- Department of Bioprocess, Micro and Nano Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland; (M.T.); (M.N.); (A.T.)
| | - Mariusz Nowak
- Department of Bioprocess, Micro and Nano Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland; (M.T.); (M.N.); (A.T.)
| | - Dusan Misic
- Department of Functional Foods Development, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland; (D.M.); (T.P.)
| | - Tomasz Półbrat
- Department of Functional Foods Development, Wroclaw University of Environmental and Life Sciences, Chelmonskiego Street 37, 51-630 Wroclaw, Poland; (D.M.); (T.P.)
| | - Stanisław Koter
- Department of Physical Chemistry and Physicochemistry of Polymers, Nicolaus Copernicus University in Torun, Gagarina 11 Street, 87-100 Torun, Poland;
| | - Anna Trusek
- Department of Bioprocess, Micro and Nano Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland; (M.T.); (M.N.); (A.T.)
| | - Irena Zizovic
- Department of Bioprocess, Micro and Nano Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland; (M.T.); (M.N.); (A.T.)
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Valor D, Montes A, García-Casas I, Pereyra C, Martínez de la Ossa E. Supercritical solvent impregnation of alginate wound dressings with mango leaves extract. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Rykowska I, Nowak I, Nowak R. Soft Contact Lenses as Drug Delivery Systems: A Review. Molecules 2021; 26:5577. [PMID: 34577045 PMCID: PMC8472272 DOI: 10.3390/molecules26185577] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/10/2021] [Accepted: 09/11/2021] [Indexed: 02/07/2023] Open
Abstract
This review describes the role of contact lenses as an innovative drug delivery system in treating eye diseases. Current ophthalmic drug delivery systems are inadequate, particularly eye drops, which allow about 95% of the active substance to be lost through tear drainage. According to the literature, many interdisciplinary studies have been carried out on the ability of contact lenses to increase the penetration of topical therapeutic agents. Contact lenses limit drug loss by releasing the medicine into two layers of tears on either side of the contact lens, eventually extending the time of contact with the ocular surface. Thanks to weighted soft contact lenses, a continuous release of the drug over an extended period is possible. This article reviewed the various techniques to deliver medications through contact lenses, examining their advantages and disadvantages. In addition, the potential of drug delivery systems based on contact lenses has been extensively studied.
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Affiliation(s)
- Iwona Rykowska
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
| | - Iwona Nowak
- Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
| | - Rafał Nowak
- Eye Department, J. Strus City Hospital, Szwajcarska 3, 61-285 Poznań, Poland;
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Zizovic I, Trusek A, Tyrka M, Moric I, Senerovic L. Functionalization of polyamide microfiltration membranes by supercritical solvent impregnation. J Supercrit Fluids 2021. [DOI: 10.1016/j.supflu.2021.105250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Polymeric Microfiltration Membranes Modification by Supercritical Solvent Impregnation-Potential Application in Open Surgical Wound Ventilation. Molecules 2021; 26:molecules26154572. [PMID: 34361725 PMCID: PMC8348072 DOI: 10.3390/molecules26154572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/21/2021] [Accepted: 07/26/2021] [Indexed: 11/24/2022] Open
Abstract
This study investigated supercritical solvent impregnation of polyamide microfiltration membranes with carvacrol and the potential application of the modified membranes in ventilation of open surgical wounds. The impregnation process was conducted in batch mode at a temperature of 40 °C under pressures of 10, 15, and 20 MPa for contact times from 1 to 6 h. FTIR was applied to confirm the presence of carvacrol on the membrane surface. In the next step, the impact of the modification on the membrane structure was studied using scanning electron and ion beam microscopy and cross-filtration tests. Further, the release of carvacrol in carbon dioxide was determined, and finally, an open thoracic cavity model was applied to evaluate the efficiency of carvacrol-loaded membranes in contamination prevention. Carvacrol loadings of up to 43 wt.% were obtained under the selected operating conditions. The swelling effect was detectable. However, its impact on membrane functionality was minor. An average of 18.3 µg of carvacrol was released from membranes per liter of carbon dioxide for the flow of interest. Membranes with 30–34 wt.% carvacrol were efficient in the open thoracic cavity model applied, reducing the contamination levels by 27% compared to insufflation with standard membranes.
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Coutinho IT, Maia-Obi LP, Champeau M. Aspirin-Loaded Polymeric Films for Drug Delivery Systems: Comparison between Soaking and Supercritical CO 2 Impregnation. Pharmaceutics 2021; 13:824. [PMID: 34199551 PMCID: PMC8229088 DOI: 10.3390/pharmaceutics13060824] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 12/11/2022] Open
Abstract
Polymeric implants loaded with drugs can overcome the disadvantages of oral or injection drug administration and deliver the drug locally. Several methods can load drugs into polymers. Herein, soaking and supercritical CO2 (scCO2) impregnation methods were employed to load aspirin into poly(l-lactic acid) (PLLA) and linear low-density polyethylene (LLDPE). Higher drug loadings (DL) were achieved with scCO2 impregnation compared to soaking and in a shorter time (3.4 ± 0.8 vs. 1.3 ± 0.4% for PLLA; and 0.4 ± 0.5 vs. 0.6 ± 0.5% for LLDPE), due to the higher swelling capacity of CO2. The higher affinity of aspirin explained the higher DL in PLLA than in LLDPE. Residual solvent was detected in LLDPE prepared by soaking, but within the FDA concentration limits. The solvents used in both methods acted as plasticizers and increased PLLA crystallinity. PLLA impregnated with aspirin exhibited faster hydrolysis in vitro due to the catalytic effect of aspirin. Finally, PLLA impregnated by soaking showed a burst release because of aspirin crystals on the PLLA surface, and released 100% of aspirin within 60 days, whereas the PLLA prepared with scCO2 released 60% after 74 days by diffusion and PLLA erosion. Hence, the scCO2 impregnation method is adequate for higher aspirin loadings and prolonged drug release.
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Affiliation(s)
| | | | - Mathilde Champeau
- Center of Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Santo Andre 09210-580, Brazil; (I.T.C.); (L.P.M.-O.)
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Franco P, De Marco I. Contact Lenses as Ophthalmic Drug Delivery Systems: A Review. Polymers (Basel) 2021; 13:1102. [PMID: 33808363 PMCID: PMC8037676 DOI: 10.3390/polym13071102] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/27/2021] [Accepted: 03/29/2021] [Indexed: 12/25/2022] Open
Abstract
Ophthalmic drugs used for the treatment of various ocular diseases are commonly administered by eye drops. However, due to anatomical and physiological factors, there is a low bioavailability of the active principle. In order to increase the drug residence time on the cornea to adequate levels, therapeutic contact lenses have recently been proposed. The polymeric support that constitutes the contact lens is loaded with the drug; in this way, there is a direct and effective pharmacological action on the target organ, promoting a prolonged release of the active principle. The incorporation of ophthalmic drugs into contact lenses can be performed by different techniques; nowadays, the soaking method is mainly employed. To improve the therapeutic performance of drug-loaded contact lenses, innovative methods have recently been proposed, including the impregnation with supercritical carbon dioxide. This updated review of therapeutic contact lenses production and application provides useful information on the most effective preparation methodologies, recent achievements and future perspectives.
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Affiliation(s)
- Paola Franco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy;
| | - Iolanda De Marco
- Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy;
- Research Centre for Biomaterials BIONAM, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano (SA), Italy
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Tutek K, Masek A, Kosmalska A, Cichosz S. Application of Fluids in Supercritical Conditions in the Polymer Industry. Polymers (Basel) 2021; 13:729. [PMID: 33673482 PMCID: PMC7956827 DOI: 10.3390/polym13050729] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 02/15/2021] [Accepted: 02/24/2021] [Indexed: 11/24/2022] Open
Abstract
This article reviews the use of fluids under supercritical conditions in processes related to the modern and innovative polymer industry. The most important processes using supercritical fluids are: extraction, particle formation, micronization, encapsulation, impregnation, polymerization and foaming. This review article briefly describes and characterizes the individual processes, with a focus on extraction, micronization, particle formation and encapsulation. The methods mentioned focus on modifications in the scope of conducting processes in a more ecological manner and showing higher quality efficiency. Nowadays, due to the growing trend of ecological solutions in the chemical industry, we see more and more advanced technological solutions. Less toxic fluids under supercritical conditions can be used as an ecological alternative to organic solvents widely used in the polymer industry. The use of supercritical conditions to conduct these processes creates new opportunities for obtaining materials and products with specialized applications, in particular in the medical, pharmacological, cosmetic and food industries, based on substances of natural sources. The considerations contained in this article are intended to increase the awareness of the need to change the existing techniques. In particular, the importance of using supercritical fluids in more industrial methods and for the development of already known processes, as well as creating new solutions with their use, should be emphasized.
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Affiliation(s)
- Karol Tutek
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland
| | - Anna Masek
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland
| | - Anna Kosmalska
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland
| | - Stefan Cichosz
- Institute of Polymer and Dye Technology, Faculty of Chemistry, Lodz University of Technology, Stefanowskiego 12/16, 90-924 Lodz, Poland
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Zalepugin DY, Tilkunova NA, Chernyshova IV. Impregnation of Polymer Materials in Supercritical Media (a Review). RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY B 2021. [DOI: 10.1134/s1990793120070179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Toffoletto N, Saramago B, Serro AP. Therapeutic Ophthalmic Lenses: A Review. Pharmaceutics 2020; 13:36. [PMID: 33379411 PMCID: PMC7824655 DOI: 10.3390/pharmaceutics13010036] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/09/2020] [Accepted: 12/17/2020] [Indexed: 12/17/2022] Open
Abstract
An increasing incidence of eye diseases has been registered in the last decades in developed countries due to the ageing of population, changes in lifestyle, environmental factors, and the presence of concomitant medical conditions. The increase of public awareness on ocular conditions leads to an early diagnosis and treatment, as well as an increased demand for more effective and minimally invasive solutions for the treatment of both the anterior and posterior segments of the eye. Despite being the most common route of ophthalmic drug administration, eye drops are associated with compliance issues, drug wastage by lacrimation, and low bioavailability due to the ocular barriers. In order to overcome these problems, the design of drug-eluting ophthalmic lenses constitutes a non-invasive and patient-friendly approach for the sustained drug delivery to the eye. Several examples of therapeutic contact lenses and intraocular lenses have been developed, by means of different strategies of drug loading, leading to promising results. This review aims to report the recent advances in the development of therapeutic ophthalmic lenses for the treatment and/or prophylaxis of eye pathologies (i.e., glaucoma, cataract, corneal diseases, or posterior segment diseases) and it gives an overview of the future perspectives and challenges in the field.
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Affiliation(s)
- Nadia Toffoletto
- Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; (B.S.); (A.P.S.)
| | - Benilde Saramago
- Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; (B.S.); (A.P.S.)
| | - Ana Paula Serro
- Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, Av. Rovisco Pais, 1049-001 Lisbon, Portugal; (B.S.); (A.P.S.)
- Centro de Investigação Interdisciplinar Egas Moniz, Instituto Universitário Egas Moniz, Quinta da Granja, Monte de Caparica, 2829-511 Caparica, Portugal
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20
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Gurina DL, Budkov YA, Kiselev MG. Impregnation of Poly(methyl methacrylate) with Carbamazepine in Supercritical Carbon Dioxide: Molecular Dynamics Simulation. J Phys Chem B 2020; 124:8410-8417. [PMID: 32930588 DOI: 10.1021/acs.jpcb.0c05657] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fully atomistic molecular dynamics simulations are employed to study impregnation of the poly(methyl methacrylate) (PMMA) matrix with carbamazepine (CBZ) in supercritical carbon dioxide. The simulation box consists of 108 macromolecules of the polymer sample with the polymerization degree of 100, 57 molecules of CBZ, and 242,522 CO2 molecules. The simulation is performed at 333 K and 20 MPa. It is found that by the end of the simulation, the CBZ uptake reaches 1.09 wt % and 50 molecules are sorbed by PMMA. The main type of interaction between PMMA and CBZ is hydrogen bonding between the carbonyl oxygen of PMMA and the hydrogen atoms of the CBZ NH2-group. At the polymer surface, CBZ exists not only in the molecular form, as inside the polymer and in the bulk solution, but also in the form of dimers and trimers. The energy of formation of the hydrogen-bonded complexes is estimated within ab initio calculations.
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Affiliation(s)
- Darya L Gurina
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, Ivanovo 153045, Russian Federation
| | - Yury A Budkov
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, Ivanovo 153045, Russian Federation.,Tikhonov Moscow Institute of Electronics and Mathematics, National Research University Higher School of Economics, Tallinskaya st. 34, 123458 Moscow, Russian Federation
| | - Mikhail G Kiselev
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 Akademicheskaya Street, Ivanovo 153045, Russian Federation
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21
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Albuquerque GA, Bezerra FWF, de Oliveira MS, da Costa WA, de Carvalho Junior RN, Joele MRSP. Supercritical CO2 Impregnation of Piper divaricatum Essential Oil in Fish (Cynoscion acoupa) Skin Gelatin Films. FOOD BIOPROCESS TECH 2020. [DOI: 10.1007/s11947-020-02514-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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22
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Abstract
Glaucoma is an optical neuropathy associated to a progressive degeneration of retinal ganglion cells with visual field loss and is the main cause of irreversible blindness in the world. The treatment has the aim to reduce intraocular pressure. The first therapy option is to instill drugs on the ocular surface. The main limitation of this is the reduced time of the drug staying on the cornea. This means that high doses are required to ensure its therapeutic effect. A drug-loaded contact lens can diffuse into the post lens tear film in a constant and prolonged flow, resulting in an increased retention of the drug on the surface of the cornea for up to 30 min and thus providing a higher drug bioavailability, increasing the therapeutic efficacy, reducing the amount of administered drug, and thereby provoking fewer adverse events. Several different systems of drug delivery have been studied in recent decades; ranging from more simple methods of impregnating the lenses, such as soaking, to more complex ones, such as molecular imprinting have been proposed. Moreover, different drugs, from those already commercially available to new substances such as melatonin have been studied to improve the glaucoma treatment efficacy. This review describes the role of contact lenses as an innovative drug delivery system to treat glaucoma.
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23
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Ngo TT, Hoffman L, Hoople GD, Trevena W, Shakya U, Barr G. Surface morphology and drug loading characterization of 3D-printed methacrylate-based polymer facilitated by supercritical carbon dioxide. J Supercrit Fluids 2020. [DOI: 10.1016/j.supflu.2020.104786] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Xu B, Liu T. Travoprost loaded microemulsion soaked contact lenses: Improved drug uptake, release kinetics and physical properties. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101792] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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25
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Li Y, Huang C, Yang X, Zhang X. Ofloxacin laden microemulsion contact lens to treat conjunctivitis. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:1566-1579. [PMID: 32354260 DOI: 10.1080/09205063.2020.1764165] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Yanchun Li
- Ophthalmology, The Second Affiliated Hospital of Shandong First Medical University, Taian City, Shandong Province, China
| | - Chao Huang
- Ophthalmology, Jinan Second People’s Hospital, Jinan City, Shandong Province, China
| | - Xiaolan Yang
- Department of Fundus Diseases, Jinan Second People’s Hospital, Jinan City, Shandong Province, China
| | - Xin Zhang
- Ophthalmology, Jinan Second People’s Hospital, Jinan City, Shandong Province, China
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Supercritical fluid technology for the development of innovative ophthalmic medical devices: Drug loaded intraocular lenses to mitigate posterior capsule opacification. Eur J Pharm Biopharm 2020; 149:248-256. [PMID: 32112896 DOI: 10.1016/j.ejpb.2020.02.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/17/2020] [Accepted: 02/24/2020] [Indexed: 11/21/2022]
Abstract
Supercritical impregnation technology was applied to load acrylic intraocular lenses (IOLs) with methotrexate to produce a sustained drug delivery device to mitigate posterior capsule opacification. Drug release kinetics were studied in vitro and used to determine the drug loading. Loaded IOLs and control IOLs treated under the same operating conditions, but without drug, were implanted ex vivo in human donor capsular bags. The typical cell growth was observed and immunofluorescence staining of three common fibrosis markers, fibronectin, F-actin and α-smooth muscle actin was carried out. Transparent IOLs presenting a sustained release of methotrexate for more than 80 days were produced. Drug loading varying between 0.43 and 0.75 ± 0.03 µgdrug·mg-1IOL were obtained when varying the supercritical impregnation pressure (8 and 25 MPa) and duration (30 and 240 min) at 308 K. The use of ethanol (5 mol%) as a co-solvent did not influence the impregnation efficiency and was even unfavorable at certain conditions. Even if the implantation of methotrexate loaded IOLs did not lead to a statistically significant variation in the duration required for a full cell coverage of the posterior capsule in the human capsular bag model, it was shown to reduce fibrosis by inhibiting epithelial-mesenchymal transformation. The innovative application presented has the potential to gain clinical relevance.
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27
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Champeau M, Coutinho IT, Thomassin JM, Tassaing T, Jérôme C. Tuning the release profile of ketoprofen from poly(l-lactic acid) suture using supercritical CO2 impregnation process. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2019.101468] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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28
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Zhang X, Cao X, Qi P. Therapeutic contact lenses for ophthalmic drug delivery: major challenges. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2020; 31:549-560. [PMID: 31902299 DOI: 10.1080/09205063.2020.1712175] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xiuju Zhang
- Department of General Practice, Linyi People’s Hospital, Linyi, Shandong, China
| | - Xiuzhen Cao
- Department of Anus and Intestine Surgery, Taian Central Hospital, Taian, Shandong, China
| | - Ping Qi
- Department of General Practice, Linyi People’s Hospital, Linyi, Shandong, China
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29
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Yan F, Liu Y, Han S, Zhao Q, Liu N. Bimatoprost Imprinted Silicone Contact Lens to Treat Glaucoma. AAPS PharmSciTech 2020; 21:63. [PMID: 31933030 DOI: 10.1208/s12249-020-1622-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 01/06/2020] [Indexed: 12/12/2022] Open
Abstract
Bimatoprost is widely used for the management of glaucoma. Currently, it is delivered via eye drop solution, which is highly inefficient due to low bioavailability. To control the release of ocular drugs, contact lenses are used by scientists. However, the conventional soaking method showed high burst release due to absence of any efficient controlling membrane. The objective of the paper was to apply molecular imprinting technology to improve the loading of bimatoprost from the soaking solution and to sustain the release of drug from the contact lens. The bimatoprost was loaded by conventional soaking method (BT-SM) and compared with the molecular imprinted contact lenses (BT-MP). The loading of bimatoprost by molecular imprinting technology affect the swelling of the contact lens; however, the batch BT-MP-10 did not showed significant alterations. The uptake study showed improvement in the bimatoprost loading by molecular imprinting technology in comparison to the conventional soaking technology. The in vitro bimatoprost release data showed improvement in the bimatoprost release rate profiles with BT-MP contact lenses (up to 36-60 h) lenses in comparison to BT-SM contact lenses (up to 24-36 h). The in vivo rabbit tear fluid data with BT-MP batch showed improvement in the bimatoprost retention time in comparison to BT-SM contact lens and eye drop solution. The rabbit model failed to respond bimatoprost; thus, the efficacy studies need to be conducted on canines or human primates. The paper revealed the potential of using molecular imprinting technology to improve the uptake of bimatoprost and to achieve sustain release kinetics without altering the swelling, transmittance and folding endurance properties of the contact lens.
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30
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Wei N, Dang H, Huang C, Sheng Y. Timolol loaded microemulsion laden silicone contact lens to manage glaucoma: in vitro and in vivo studies. J DISPER SCI TECHNOL 2020. [DOI: 10.1080/01932691.2019.1710183] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ning Wei
- Department of Ophthalmology, The Second People’s Hospital of Jinan, Jinan, China
| | - Hui Dang
- Department of Ophthalmology, The Second People’s Hospital of Jinan, Jinan, China
| | - Chao Huang
- Department of Ophthalmology, The Second People’s Hospital of Jinan, Jinan, China
| | - Yanjuan Sheng
- Department of Ophthalmology, The Second People’s Hospital of Jinan, Jinan, China
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31
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32
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Sun M, Ruiz Barbero S, Johannsen M, Smirnova I, Gurikov P. Retention characteristics of silica materials in carbon dioxide/methanol mixtures studied by inverse supercritical fluid chromatography. J Chromatogr A 2019; 1588:127-136. [PMID: 30658911 DOI: 10.1016/j.chroma.2018.12.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2018] [Revised: 12/22/2018] [Accepted: 12/24/2018] [Indexed: 11/19/2022]
Abstract
In this work, inverse supercritical fluid chromatography was applied to characterize the surface of four silica materials (three commercial Kromasils and one silica aerogel) from chromatographic retention data. Retention factors at various pressures (150-300 bar), temperatures (25-60 °C) and modifier concentrations (5-20 vol.% methanol in CO2) for a set of representative 17 solutes were correlated with the solute properties by the linear solvation energy relationships (LSER). Two types of the LSER models were identified based on different criteria. Firstly, a generally valid model with two descriptors concerning dipolarity/polarizability and solute hydrogen-bonding acceptor ability was constructed. Secondly, a group of specific models for each particular silica material was proposed. According to the statistical analysis of the modeling results, the acid-basic interactions were demonstrated to have a major contribution to the retention for all studied silicas. The intensity of these interactions decreases with increasing methanol concentration in the mobile phase, possibly due to the mixed mechanism of competitive adsorption of the modifier on silanol groups and modification of mobile phase property. Moreover, retention factors measured under constant conditions (p, T, methanol concentration) for a pair of the materials were found to be proportional in logarithmic scale implying the transferability of the adsorption free energies and the adsorption constants across four studied silica materials.
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Affiliation(s)
- Miaotian Sun
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Sheila Ruiz Barbero
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Monika Johannsen
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Hungary
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
| | - Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany
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33
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Rojas A, Torres A, José Galotto M, Guarda A, Julio R. Supercritical impregnation for food applications: a review of the effect of the operational variables on the active compound loading. Crit Rev Food Sci Nutr 2019; 60:1290-1301. [PMID: 30729794 DOI: 10.1080/10408398.2019.1567459] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The scCO2-assisted impregnation process has arisen as an effective method to impregnate solid materials. Its multiple advantages include high diffusion, it allows to obtain free-solvent materials and to operate under low temperatures, which permits to process thermolabile solutes. These characteristics have allowed its application at industrial scale for the impregnation of wood with fungicides and in the last years for textile dyeing. Meanwhile, other numerous applications are still being studied at laboratory scale. One potential field of application corresponds to the food-related industry, which includes the use of scCO2-assisted impregnation process to develop active materials for food packaging and to generate food-grade materials loaded with nutraceuticals for functional food applications. In this framework, this article summarizes the advantages and the main drawbacks with the scCO2-assisted impregnation process. The effect of the processing variables of the scCO2-assisted impregnation process is discussed in terms of the incorporation of active compounds within polymer structures. Including the principles and description of the process and a review of the investigated systems for a better understanding.
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Affiliation(s)
- Adrián Rojas
- Laboratory of Membrane Separation Processes (LabProSeM) Department of Chemical Engineering, University of Santiago de Chile, Santiago, Chile.,Food Packaging Laboratory Department of Food Science and Technology, Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago de Chile, Santiago, Chile
| | - Alejandra Torres
- Food Packaging Laboratory Department of Food Science and Technology, Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago de Chile, Santiago, Chile
| | - María José Galotto
- Food Packaging Laboratory Department of Food Science and Technology, Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago de Chile, Santiago, Chile
| | - Abel Guarda
- Food Packaging Laboratory Department of Food Science and Technology, Center for the Development of Nanoscience and Nanotechnology (CEDENNA), University of Santiago de Chile, Santiago, Chile
| | - Romero Julio
- Laboratory of Membrane Separation Processes (LabProSeM) Department of Chemical Engineering, University of Santiago de Chile, Santiago, Chile
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Rojas A, Torres A, Añazco A, Villegas C, Galotto MJ, Guarda A, Romero J. Effect of pressure and time on scCO2-assisted incorporation of thymol into LDPE-based nanocomposites for active food packaging. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.05.031] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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35
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Supercritical carbon dioxide-based technologies for the production of drug nanoparticles/nanocrystals - A comprehensive review. Adv Drug Deliv Rev 2018; 131:22-78. [PMID: 30026127 DOI: 10.1016/j.addr.2018.07.010] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/02/2018] [Accepted: 07/10/2018] [Indexed: 02/06/2023]
Abstract
Low drug bioavailability, which is mostly a result of poor aqueous drug solubilities and of inadequate drug dissolution rates, is one of the most significant challenges that pharmaceutical companies are currently facing, since this may limit the therapeutic efficacy of marketed drugs, or even result in the discard of potential highly effective drug candidates during developmental stages. Two of the main approaches that have been implemented in recent years to overcome poor drug solubility/dissolution issues have frequently involved drug particle size reduction (i.e., micronization/nanonization) and/or the modification of some of the physicochemical and structural properties of poorly water soluble drugs. A large number of particle engineering methodologies have been developed, tested, and applied in the synthesis and control of particle size/particle-size distributions, crystallinities, and polymorphic purities of drug micro- and nano-particles/crystals. In recent years pharmaceutical processing using supercritical fluids (SCF), in general, and supercritical carbon dioxide (scCO2), in particular, have attracted a great attention from the pharmaceutical industry. This is mostly due to the several well-known advantageous technical features of these processes, as well as to other increasingly important subjects for the pharmaceutical industry, namely their "green", sustainable, safe and "environmentally-friendly" intrinsic characteristics. In this work, it is presented a comprehensive state-of-the-art review on scCO2-based processes focused on the formation and on the control of the physicochemical, structural and morphological properties of amorphous/crystalline pure drug nanoparticles. It is presented and discussed the most relevant scCO2, scCO2-based fluids and drug physicochemical properties that are pertinent for the development of successful pharmaceutical products, namely those that are critical in the selection of an adequate scCO2-based method to produce pure drug nanoparticles/nanocrystals. scCO2-based nanoparticle formation methodologies are classified in three main families, and in terms of the most important role played by scCO2 in particle formation processes: as a solvent; as an antisolvent or a co-antisolvent; and as a "high mobility" additive (a solute, a co-solute, or a co-solvent). Specific particle formation methods belonging to each one of these families are presented, discussed and compared. Some selected amorphous/crystalline drug nanoparticles that were prepared by these methods are compiled and presented, namely those studied in the last 10-15 years. A special emphasis is given to the formation of drug cocrystals. It is also discussed the fundamental knowledge and the main mechanisms in which the scCO2-based particle formation methods rely on, as well as the current status and urgent needs in terms of reliable experimental data and of robust modeling approaches. Other addressed and discussed topics include the currently available and the most adequate physicochemical, morphological and biological characterization methods required for pure drug nanoparticles/nanocrystals, some of the current nanometrology and regulatory issues associated to the use of these methods, as well as some scale-up, post-processing and pharmaceutical regulatory subjects related to the industrial implementation of these scCO2-based processes. Finally, it is also discussed the current status of these techniques, as well as their future major perspectives and opportunities for industrial implementation in the upcoming years.
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36
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A comprehensive review on contact lens for ophthalmic drug delivery. J Control Release 2018; 281:97-118. [PMID: 29782944 DOI: 10.1016/j.jconrel.2018.05.020] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 12/18/2022]
Abstract
With the prevalence of electronic devices and an aging population, the number of people affected with eye disease is increasing year by year. In spite of a large number of eye drops on the market, most of them do not perform sufficiently, due to rapid clearance mechanisms and ocular barriers. To enhance drug delivery to the eye, a number of novel formulations for ocular diseases have been investigated over recent decades, aiming to increase drug retention and permeation while also allowing for sustained drug release over prolonged periods. The contact lens, initially used to correct visual acuity and beautify female eyes, is one such novel formulation with outstanding potential. Recently, contact lenses have been extensively used for ocular drug delivery to enhance ocular bioavailability and reduce side effects, and are particularly suitable for the treatment of chronic diseases, and thus are of interest to ophthalmic scientists. This review summarizes contact lens classification, methods of preparation, strategies for integrating drugs into lenses, in vitro and in vivo studies, and clinical applications. This review also discusses the current state of ocular drug therapy and provides an outlook for future therapeutic opportunities in the field of ocular drug delivery.
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Belizón M, Fernández-Ponce M, Casas L, Mantell C, Martínez de la Ossa-Fernández E. Supercritical impregnation of antioxidant mango polyphenols into a multilayer PET/PP food-grade film. J CO2 UTIL 2018. [DOI: 10.1016/j.jcou.2018.03.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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38
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da Silva C, Pereira V, Costa G, Cabral-Albuquerque E, Vieira de Melo S, de Sousa H, Dias A, Braga M. Supercritical solvent impregnation/deposition of spilanthol-enriched extracts into a commercial collagen/cellulose-based wound dressing. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.11.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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39
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Dubald M, Bourgeois S, Andrieu V, Fessi H. Ophthalmic Drug Delivery Systems for Antibiotherapy-A Review. Pharmaceutics 2018; 10:E10. [PMID: 29342879 PMCID: PMC5874823 DOI: 10.3390/pharmaceutics10010010] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/04/2018] [Accepted: 01/09/2018] [Indexed: 11/16/2022] Open
Abstract
The last fifty years, ophthalmic drug delivery research has made much progress, challenging scientists about the advantages and limitations of this drug delivery approach. Topical eye drops are the most commonly used formulation in ocular drug delivery. Despite the good tolerance for patients, this topical administration is only focus on the anterior ocular diseases and had a high precorneal loss of drugs due to the tears production and ocular barriers. Antibiotics are popularly used in solution or in ointment for the ophthalmic route. However, their local bioavailability needs to be improved in order to decrease the frequency of administrations and the side effects and to increase their therapeutic efficiency. For this purpose, sustained release forms for ophthalmic delivery of antibiotics were developed. This review briefly describes the ocular administration with the ocular barriers and the currently topical forms. It focuses on experimental results to bypass the limitations of ocular antibiotic delivery with new ocular technology as colloidal and in situ gelling systems or with the improvement of existing forms as implants and contact lenses. Nanotechnology is presently a promising drug delivery way to provide protection of antibiotics and improve pathway through ocular barriers and deliver drugs to specific target sites.
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Affiliation(s)
- Marion Dubald
- Univ Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique et de GEnie des Procédés (LAGEP) Unité Mixte de Recherche UMR 5007, 43 boulevard du 11 novembre 1918, F-69100, Villeurbanne, France.
- Horus Pharma, Cap Var, 148 avenue Georges Guynemer, F-06700 Saint Laurent du Var, France.
| | - Sandrine Bourgeois
- Univ Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique et de GEnie des Procédés (LAGEP) Unité Mixte de Recherche UMR 5007, 43 boulevard du 11 novembre 1918, F-69100, Villeurbanne, France.
- Univ Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Pharmaceutiques et Biologiques (ISPB) - Faculté de Pharmacie de Lyon, 8 avenue Rockefeller, F-69008, Lyon, France.
| | - Véronique Andrieu
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes (URMITE), Unité Mixte de Recherche 6236 Centre National de la Recherche Scientifique (CNRS), Aix Marseille Université, Faculté de Médecine et de Pharmacie, F-13005 Marseille, France.
| | - Hatem Fessi
- Univ Lyon, Université Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Automatique et de GEnie des Procédés (LAGEP) Unité Mixte de Recherche UMR 5007, 43 boulevard du 11 novembre 1918, F-69100, Villeurbanne, France.
- Univ Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Pharmaceutiques et Biologiques (ISPB) - Faculté de Pharmacie de Lyon, 8 avenue Rockefeller, F-69008, Lyon, France.
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Yokozaki Y, Shimoyama Y. Loading of vitamin E into silicone hydrogel by supercritical carbon dioxide impregnation toward controlled release of timolol maleate. J Supercrit Fluids 2018. [DOI: 10.1016/j.supflu.2017.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Salgado M, Santos F, Rodríguez-Rojo S, Reis RL, Duarte ARC, Cocero MJ. Development of barley and yeast β-glucan aerogels for drug delivery by supercritical fluids. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.10.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Supercritical CO 2 -assisted impregnation of LDPE/sepiolite nanocomposite films with insecticidal terpene ketones: Impregnation yield, crystallinity and mechanical properties assessment. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2017.06.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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43
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Copaiba oil-loaded commercial wound dressings using supercritical CO 2 : A potential alternative topical antileishmanial treatment. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2017.02.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sanchez-Sanchez J, Fernández-Ponce M, Casas L, Mantell C, de la Ossa EM. Impregnation of mango leaf extract into a polyester textile using supercritical carbon dioxide. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2017.05.033] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Rojas A, Torres A, Martínez F, Salazar L, Villegas C, Galotto MJ, Guarda A, Romero J. Assessment of kinetic release of thymol from LDPE nanocomposites obtained by supercritical impregnation: Effect of depressurization rate and nanoclay content. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.05.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kankala RK, Zhang YS, Wang SB, Lee CH, Chen AZ. Supercritical Fluid Technology: An Emphasis on Drug Delivery and Related Biomedical Applications. Adv Healthc Mater 2017; 6:10.1002/adhm.201700433. [PMID: 28752598 PMCID: PMC5849475 DOI: 10.1002/adhm.201700433] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 05/12/2017] [Indexed: 12/18/2022]
Abstract
During the past few decades, supercritical fluid (SCF) has emerged as an effective alternative for many traditional pharmaceutical manufacturing processes. Operating active pharmaceutical ingredients (APIs) alone or in combination with various biodegradable polymeric carriers in high-pressure conditions provides enhanced features with respect to their physical properties such as bioavailability enhancement, is of relevance to the application of SCF in the pharmaceutical industry. Herein, recent advances in drug delivery systems manufactured using the SCF technology are reviewed. We provide a brief description of the history, principle, and various preparation methods involved in the SCF technology. Next, we aim to give a brief overview, which provides an emphasis and discussion of recent reports using supercritical carbon dioxide (SC-CO2 ) for fabrication of polymeric carriers, for applications in areas related to drug delivery, tissue engineering, bio-imaging, and other biomedical applications. We finally summarize with perspectives.
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Affiliation(s)
- Ranjith Kumar Kankala
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
| | - Yu Shrike Zhang
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
| | - Shi-Bin Wang
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
| | - Chia-Hung Lee
- Department of Life Science and Institute of Biotechnology, National Dong Hwa University, Hualien, 97401, Taiwan
| | - Ai-Zheng Chen
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Institute of Biomaterials and Tissue Engineering, Huaqiao University, Xiamen, 361021, P. R. China
- Fujian Provincial Key Laboratory of Biochemical Technology, Xiamen, 361021, P. R. China
- Division of Engineering in Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
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Impregnation of medicinal plant phytochemical compounds into silica and alginate aerogels. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.06.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Effect of scCO2 sorption capacity on the total amount of borage oil loaded by scCO2 impregnation/deposition into a polyurethane-based wound dressing. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Goñi ML, Gañán NA, Strumia MC, Martini RE. Eugenol-loaded LLDPE films with antioxidant activity by supercritical carbon dioxide impregnation. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.01.012] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Bouledjouidja A, Masmoudi Y, Sergent M, Trivedi V, Meniai A, Badens E. Drug loading of foldable commercial intraocular lenses using supercritical impregnation. Int J Pharm 2016; 500:85-99. [DOI: 10.1016/j.ijpharm.2016.01.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/06/2016] [Accepted: 01/08/2016] [Indexed: 11/24/2022]
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