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Krawczyk-Santos AP, Marreto RN, Concheiro A, Alvarez-Lorenzo C, Taveira SF. Poly(pseudo)rotaxanes formed by mixed micelles and α-cyclodextrin enhance terbinafine nail permeation to deeper layers. Int J Pharm X 2022; 4:100118. [PMID: 35602759 PMCID: PMC9117884 DOI: 10.1016/j.ijpx.2022.100118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 11/25/2022] Open
Abstract
This work aimed to develop water-based formulations for onychomycosis topical treatment using micelles of small pegylated surfactants associated with α-cyclodextrin (αCD) to deliver terbinafine to the nail. Kolliphor® RH40 (RH40) and Gelucire® 48/16 (GEL) single and mixed micelles (RH40:GEL 1:1) were prepared. αCD was added to the surfactants dispersions to form poly(pseudo)rotaxanes (PPR). Formulations were characterized in terms of drug solubilization (3 to 34-fold increase), particle size (9–11 nm) and Z-potential (+0.3 − +1.96 mV), blood compatibility (non-hemolytic), rheological behavior (solid-like viscoelastic properties after 5–10% αCD addition), drug release and interaction with the nail plate. GEL micelles and surfactant-10% αCD PPRs notably hydrated the nail plate. The high viscosity of PPR led to a slower drug release, except for RH40:GEL +10% αCD that surprisingly released terbinafine faster. The RH40:GEL +10% αCD formulation delivered twice more amount of terbinafine to deeper regions of nail plate compared to other formulations. The results evidenced the potential of PPR formed by small pegylated surfactants as a water-based formulation for nail drug delivery. RH40, GEL and their mixed micelles increased 3-fold and 34-fold TB solubility in water and citrate buffer, respectively. Addition of αCD (5–10%) led to PPR formation and viscoelastic supramolecular gels without decrease in TB solubilization. PPR formulations with 10% αCD enhanced nail plate hydration, increasing its porosity. Compared to mixed micelles, PRP showed slower release rate but promoted TB accumulation in deeper regions of hooves.
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Affiliation(s)
- Anna Paula Krawczyk-Santos
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74, 605-170 Goiânia, GO, Brazil
| | - Ricardo Neves Marreto
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74, 605-170 Goiânia, GO, Brazil
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI-1645), Facultad de Farmacia, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+DFarma Group (GI-1645), Facultad de Farmacia, iMATUS and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
- Corresponding authors.
| | - Stephânia Fleury Taveira
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74, 605-170 Goiânia, GO, Brazil
- Corresponding authors.
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Li L, He M, Fang C, Zhang Y, Wang Y, Song X, Zou Y, Jia R, Liang X, Yin L, Lv C, Wan H, Zhao X, Yin Z. Preparation, characterization, ex vivo transdermal properties and skin irritation evaluation of 1,8-cineole nanoemulsion gel. Int J Pharm 2022; 624:121982. [DOI: 10.1016/j.ijpharm.2022.121982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 06/26/2022] [Accepted: 06/30/2022] [Indexed: 10/17/2022]
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Gul U, Khan MI, Madni A, Sohail MF, Rehman M, Rasul A, Peltonen L. Olive oil and clove oil-based nanoemulsion for topical delivery of terbinafine hydrochloride: in vitro and ex vivo evaluation. Drug Deliv 2022; 29:600-612. [PMID: 35174738 PMCID: PMC8856056 DOI: 10.1080/10717544.2022.2039805] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
In this article, formulation studies for terbinafine hydrochloride nanoemulsions, prepared by high-energy ultrasonication technique, are described. Pseudo-ternary phase diagram was constructed in order to find out the optimal ratios of oil and surfactant/co-solvent mixture for nanoemulsion production. Clove and olive oils were selected as oil phase. Based on the droplet size evaluation, maximum nanoemulsion region were determined for formulation development. Further characterization included polydispersity index (PDI), zeta potential, Fourier transform infrared (FT-IR) spectroscopy, morphology, pH, viscosity, refractive index, ex vivo skin permeation, skin irritation, and histopathological examination. Droplet sizes of optimized formulations were in colloidal range. PDI values below 0.35 indicated considerably homogeneous nanoemulsions. Zeta potential values were from 13.2 to 18.1 mV indicating good stability, which was also confirmed by dispersion stability studies. Ex vivo permeation studies revealed almost total skin permeation of terbinafine hydrochloride from the nanoemulsions (96–98%) in 6 hours whereas commercial product reached only 57% permeation at the same time. Maximum drug amounts were seen in epidermis and dermis layers. Skin irritation and histopathological examination demonstrated dermatologically safe formulations. In conclusion, olive oil and clove oil-based nanoemulsion systems have potential to serve as promising carriers for topical terbinafine hydrochloride delivery.
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Affiliation(s)
- Uzma Gul
- Riphah Institute of Pharmaceutical Sciences (RIPS), Riphah International University, Lahore, Pakistan
| | - Muhammad Imran Khan
- Riphah Institute of Pharmaceutical Sciences (RIPS), Riphah International University, Lahore, Pakistan
| | - Asadullah Madni
- Department of Pharmaceutics, Faculty of Pharmacy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Farhan Sohail
- Riphah Institute of Pharmaceutical Sciences (RIPS), Riphah International University, Lahore, Pakistan
| | - Mubashar Rehman
- Department of Pharmacy, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, Pakistan
| | - Akhtar Rasul
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University, Faisalabad, Pakistan
| | - Leena Peltonen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
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Maksimov AY, Balandina SY, Topanov PA, Mashevskaya IV, Chaudhary S. Organic Antifungal Drugs and Targets of Their Action. Curr Top Med Chem 2021; 21:705-736. [PMID: 33423647 DOI: 10.2174/1568026621666210108122622] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/20/2020] [Accepted: 09/03/2020] [Indexed: 11/22/2022]
Abstract
In recent decades, there has been a significant increase in the number of fungal diseases. This is due to a wide spectrum of action, immunosuppressants and other group drugs. In terms of frequency, rapid spread and globality, fungal infections are approaching acute respiratory infections. Antimycotics are medicinal substances endorsed with fungicidal or fungistatic properties. For the treatment of fungal diseases, several groups of compounds are used that differ in their origin (natural or synthetic), molecular targets and mechanism of action, antifungal effect (fungicidal or fungistatic), indications for use (local or systemic infections), and methods of administration (parenteral, oral, outdoor). Several efforts have been made by various medicinal chemists around the world for the development of antifungal drugs with high efficacy with the least toxicity and maximum selectivity in the area of antifungal chemotherapy. The pharmacokinetic properties of the new antimycotics are also important: the ability to penetrate biological barriers, be absorbed and distributed in tissues and organs, get accumulated in tissues affected by micromycetes, undergo drug metabolism in the intestinal microflora and human organs, and in the kinetics of excretion from the body. There are several ways to search for new effective antimycotics: - Obtaining new derivatives of the already used classes of antimycotics with improved activity properties. - Screening of new chemical classes of synthetic antimycotic compounds. - Screening of natural compounds. - Identification of new unique molecular targets in the fungal cell. - Development of new compositions and dosage forms with effective delivery vehicles. The methods of informatics, bioinformatics, genomics and proteomics were extensively investigated for the development of new antimycotics. These techniques were employed in finding and identification of new molecular proteins in a fungal cell; in the determination of the selectivity of drugprotein interactions, evaluation of drug-drug interactions and synergism of drugs; determination of the structure-activity relationship (SAR) studies; determination of the molecular design of the most active, selective and safer drugs for the humans, animals and plants. In medical applications, the methods of information analysis and pharmacogenomics allow taking into account the individual phenotype of the patient, the level of expression of the targets of antifungal drugs when choosing antifungal agents and their dosage. This review article incorporates some of the most significant studies covering the basic structures and approaches for the synthesis of antifungal drugs and the directions for their further development.
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Affiliation(s)
- Alexander Yu Maksimov
- Department of Pharmacy and Pharmacology, Faculty of Chemistry, Perm State University, Perm 614990, Russian Federation
| | - Svetlana Yu Balandina
- Department of Pharmacy and Pharmacology, Faculty of Chemistry, Perm State University, Perm 614990, Russian Federation
| | - Pavel A Topanov
- Department of Pharmacy and Pharmacology, Faculty of Chemistry, Perm State University, Perm 614990, Russian Federation
| | - Irina V Mashevskaya
- Department of Pharmacy and Pharmacology, Faculty of Chemistry, Perm State University, Perm 614990, Russian Federation
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry (OMC lab), Department of Chemistry, Malaviya National Institute of Technology Jaipur, Jawaharlal Nehru Marg, Jaipur 302017, India
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Cui L, Cheng C, Qiu Y, Jiang T, He B. Excretory overexpression of hydrophobins as multifunctional biosurfactants in E. coli. Int J Biol Macromol 2020; 165:1296-1302. [DOI: 10.1016/j.ijbiomac.2020.09.206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022]
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Arpa MD, Yoltaş A, Onay Tarlan E, Şenyüz CŞ, Sipahi H, Aydın A, Üstündağ Okur N. New therapeutic system based on hydrogels for vaginal candidiasis management: formulation–characterization and in vitro evaluation based on vaginal irritation and direct contact test. Pharm Dev Technol 2020; 25:1238-1248. [DOI: 10.1080/10837450.2020.1809457] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Muhammet Davut Arpa
- Department of Pharmaceutical Technology, School of Pharmacy, Istanbul Medipol University, Istanbul, Turkey
| | - Ayşegül Yoltaş
- Fundamental and Industrial Microbiology Division, Department of Biology, Faculty of Science, Ege University, Izmir, Turkey
| | - Ecehan Onay Tarlan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - Cemre Şahin Şenyüz
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey
| | - Hande Sipahi
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey
| | - Ahmet Aydın
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, Yeditepe University, Istanbul, Turkey
| | - Neslihan Üstündağ Okur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Health Sciences, Istanbul, Turkey
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Berger BW, Sallada ND. Hydrophobins: multifunctional biosurfactants for interface engineering. J Biol Eng 2019; 13:10. [PMID: 30679947 PMCID: PMC6343262 DOI: 10.1186/s13036-018-0136-1] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 12/19/2018] [Indexed: 11/10/2022] Open
Abstract
Hydrophobins are highly surface-active proteins that have versatile potential as agents for interface engineering. Due to the large and growing number of unique hydrophobin sequences identified, there is growing potential to engineer variants for particular applications using protein engineering and other approaches. Recent applications and advancements in hydrophobin technologies and production strategies are reviewed. The application space of hydrophobins is large and growing, including hydrophobic drug solubilization and delivery, protein purification tags, tools for protein and cell immobilization, antimicrobial coatings, biosensors, biomineralization templates and emulsifying agents. While there is significant promise for their use in a wide range of applications, developing new production strategies is a key need to improve on low recombinant yields to enable their use in broader applications; further optimization of expression systems and yields remains a challenge in order to use designed hydrophobin in commercial applications.
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Affiliation(s)
- Bryan W. Berger
- Department of Biomedical Engineering, University of Virginia, Thornton Hall, P.O. Box 400259, Charlottesville, VA 22904 USA
- Department of Chemical Engineering, University of Virginia, 214 Chem. Eng., 102 Engineers’ Way, Charlottesville, VA 22904 USA
| | - Nathanael D. Sallada
- Department of Biomedical Engineering, University of Virginia, Thornton Hall, P.O. Box 400259, Charlottesville, VA 22904 USA
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Kreutz T, de Matos SP, Koester LS. Recent Patents on Permeation Enhancers for Drug Delivery Through Nails. RECENT PATENTS ON DRUG DELIVERY & FORMULATION 2019; 13:203-218. [PMID: 31663846 PMCID: PMC7011684 DOI: 10.2174/1872211313666191030155837] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 10/21/2019] [Accepted: 10/24/2019] [Indexed: 12/29/2022]
Abstract
The human nail is a unique barrier with a keratinized constitution that favors protection and fine touch. However, many disorders can affect the nail, among them, are the onychomycosis and psoriasis. Systemic oral therapy has been applied to treat these diseases, even presenting disadvantages, including side effects, drug interactions, contraindications, toxicity, high cost and low patient compliance. A great option to succeed in dealing with the problems associated with oral therapy is the topical administration of drugs. However, nail composition, low diffusion through ungual route and reduced tissue bioavailability for topical treatments are limiting factors. These drawbacks can be overcome by promoting penetration through the nails by employing penetration enhancers. The review focuses on patents that highlight permeation enhancers applied to nail drug delivery for the treatment of onychomycosis and psoriasis. Literature and patent searches were conduced regarding the topic of interest. The substantial literature and patent search revealed that permeation enhancers, especially chemicals, are great strategies for promoting the ungual delivery of drugs. Nail topical therapy containing permeation enhancers is an attractive option for delivering localized treatments.
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Affiliation(s)
- Tainá Kreutz
- Graduate Program in Pharmaceutical Sciences, School of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga, Santana, 2752, Porto Alegre, Rio Grande do Sul, Brazil
| | - Sheila Porto de Matos
- Graduate Program in Pharmaceutical Sciences, School of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga, Santana, 2752, Porto Alegre, Rio Grande do Sul, Brazil
| | - Letícia Scherer Koester
- Graduate Program in Pharmaceutical Sciences, School of Pharmacy, Federal University of Rio Grande do Sul, Av. Ipiranga, Santana, 2752, Porto Alegre, Rio Grande do Sul, Brazil
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Baswan S, Kasting GB, Li SK, Wickett R, Adams B, Eurich S, Schamper R. Understanding the formidable nail barrier: A review of the nail microstructure, composition and diseases. Mycoses 2017; 60:284-295. [PMID: 28098391 DOI: 10.1111/myc.12592] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 11/25/2016] [Indexed: 01/27/2023]
Abstract
The topical treatment of nail fungal infections has been a focal point of nail research in the past few decades as it offers a much safer and focused alternative to conventional oral therapy. Although the current focus remains on exploring the ways of enhancing permeation through the formidable nail barrier, the understanding of the nail microstructure and composition is far from complete. This article reviews our current understanding of the nail microstructure, composition and diseases. A few of the parameters affecting the nail permeability and potential causes of the recurrence of fungal nail infection are also discussed.
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Affiliation(s)
- Sudhir Baswan
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, OH, USA.,Amway Corporation, Ada, MI, USA
| | - Gerald B Kasting
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - S Kevin Li
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - Randy Wickett
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, OH, USA
| | - Brian Adams
- Department of Dermatology, College of Medicine, The University of Cincinnati Academic Health Center, Cincinnati, OH, USA
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10
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Baswan SM, Li SK, LaCount TD, Kasting GB. Size and Charge Dependence of Ion Transport in Human Nail Plate. J Pharm Sci 2016; 105:1201-8. [PMID: 26886342 DOI: 10.1016/j.xphs.2015.12.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 12/10/2015] [Accepted: 12/11/2015] [Indexed: 12/26/2022]
Abstract
The electrical properties of human nail plate are poorly characterized yet are a key determinate of the potential to treat nail diseases, such as onychomycosis, using iontophoresis. To address this deficiency, molar conductivities of 17 electrolytes comprising 12 ionic species were determined in hydrated human nail plate in vitro. Cation transport numbers across the nail for 11 of these electrolytes were determined by the electromotive force method. Effective ionic mobilities and diffusivities at infinite dilution for all ionic species were determined by regression analysis. The ratios of diffusivities in nail to those in solution were found to correlate inversely with the hydrodynamic radii of the ions according to a power law relationship having an exponent of -1.75 ± 0.27, a substantially steeper size dependence than observed for similar experiments in skin. Effective diffusivities of cations in nail were 3-fold higher than those of comparably sized anions. These results reflect the strong size and charge selectivity of the nail plate for ionic conduction and diffusion. The analysis implies that efficient transungual iontophoretic delivery of ionized drugs having radii upward of 5 Å (molecular weight, ca. ≥ 340 Da) will require chemical or mechanical alteration of the nail plate.
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Affiliation(s)
- Sudhir M Baswan
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, Ohio 45267-0004
| | - S Kevin Li
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, Ohio 45267-0004
| | - Terri D LaCount
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, Ohio 45267-0004
| | - Gerald B Kasting
- James L. Winkle College of Pharmacy, The University of Cincinnati Academic Health Center, Cincinnati, Ohio 45267-0004.
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Abstract
Nail disorders are beyond cosmetic concern; besides discomfort in the performance of daily chores, they disturb patients psychologically and affect their quality of life. Fungal nail infection (onychomycosis) is the most prevalent nail-related disorder affecting a major population worldwide. Overcoming the impenetrable nail barrier is the toughest challenge for the development of efficacious topical ungual formulation. Sophisticated techniques such as iontophoresis and photodynamic therapy have been proven to improve transungual permeation. This article provides an updated and concise discussion regarding the conventional approach and upcoming novel approaches focused to alter the nail barrier. A comprehensive description regarding preformulation screening techniques for the identification of potential ungual enhancers is also described in this review while highlighting the current pitfalls for the development of ungual delivery.
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12
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Development of a novel in vitro onychomycosis model for the evaluation of topical antifungal activity. J Microbiol Methods 2015; 112:73-5. [DOI: 10.1016/j.mimet.2015.03.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 02/27/2015] [Accepted: 03/02/2015] [Indexed: 11/19/2022]
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13
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Applications of hydrophobins: current state and perspectives. Appl Microbiol Biotechnol 2015; 99:1587-97. [PMID: 25564034 DOI: 10.1007/s00253-014-6319-x] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Revised: 12/08/2014] [Accepted: 12/09/2014] [Indexed: 01/07/2023]
Abstract
Hydrophobins are proteins exclusively produced by filamentous fungi. They self-assemble at hydrophilic-hydrophobic interfaces into an amphipathic film. This protein film renders hydrophobic surfaces of gas bubbles, liquids, or solid materials wettable, while hydrophilic surfaces can be turned hydrophobic. These properties, among others, make hydrophobins of interest for medical and technical applications. For instance, hydrophobins can be used to disperse hydrophobic materials; to stabilize foam in food products; and to immobilize enzymes, peptides, antibodies, cells, and anorganic molecules on surfaces. At the same time, they may be used to prevent binding of molecules. Furthermore, hydrophobins have therapeutic value as immunomodulators and can been used to produce recombinant proteins.
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Täuber A, Müller-Goymann CC. Comparison of the Antifungal Efficacy of Terbinafine Hydrochloride and Ciclopirox Olamine Containing Formulations against the Dermatophyte Trichophyton rubrum in an Infected Nail Plate Model. Mol Pharm 2014; 11:1991-6. [DOI: 10.1021/mp400711q] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Anja Täuber
- Institut für Pharmazeutische
Technologie, Technische Universität Braunschweig, Mendelssohnstraße
1, 38106 Braunschweig, Germany
| | - Christel C. Müller-Goymann
- Institut für Pharmazeutische
Technologie, Technische Universität Braunschweig, Mendelssohnstraße
1, 38106 Braunschweig, Germany
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15
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16
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17
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Erdal MS, Peköz AY, Aksu B, Araman A. Impacts of chemical enhancers on skin permeation and deposition of terbinafine. Pharm Dev Technol 2013; 19:565-70. [PMID: 23841559 DOI: 10.3109/10837450.2013.813538] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Meryem Sedef Erdal
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Istanbul University, 34116 Beyazıt , Istanbul , Turkey and
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18
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Valo H, Arola S, Laaksonen P, Torkkeli M, Peltonen L, Linder MB, Serimaa R, Kuga S, Hirvonen J, Laaksonen T. Drug release from nanoparticles embedded in four different nanofibrillar cellulose aerogels. Eur J Pharm Sci 2013; 50:69-77. [PMID: 23500041 DOI: 10.1016/j.ejps.2013.02.023] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2012] [Revised: 12/20/2012] [Accepted: 02/27/2013] [Indexed: 11/27/2022]
Abstract
Highly porous nanocellulose aerogels prepared by freeze-drying from various nanofibrillar cellulose (NFC) hydrogels are introduced as nanoparticle reservoirs for oral drug delivery systems. Here we show that beclomethasone dipropionate (BDP) nanoparticles coated with amphiphilic hydrophobin proteins can be well integrated into the NFC aerogels. NFCs from four different origins are introduced and compared to microcrystalline cellulose (MCC). The nanocellulose aerogel scaffolds made from red pepper (RC) and MCC release the drug immediately, while bacterial cellulose (BC), quince seed (QC) and TEMPO-oxidized birch cellulose-based (TC) aerogels show sustained drug release. Since the release of the drug is controlled by the structure and interactions between the nanoparticles and the cellulose matrix, modulation of the matrix formers enable a control of the drug release rate. These nanocomposite structures can be very useful in many pharmaceutical nanoparticle applications and open up new possibilities as carriers for controlled drug delivery.
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Affiliation(s)
- Hanna Valo
- Division of Pharmaceutical Technology, Faculty of Pharmacy, University of Helsinki, PO Box 56, FIN-00014 Helsinki, Finland
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Tanrıverdi ST, Özer Ö. Novel topical formulations of Terbinafine-HCl for treatment of onychomycosis. Eur J Pharm Sci 2013; 48:628-36. [PMID: 23295582 DOI: 10.1016/j.ejps.2012.12.014] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 12/12/2012] [Accepted: 12/20/2012] [Indexed: 10/27/2022]
Abstract
Terbinafine hydrochloride (TBF-HCl) is an active substance that is using for treatment of onychomycosis. Onychomycosis is a fungal infection which is the most common disease of nail plate. The nail plate is a barrier which prevents effective topical treatment of ungual disorders. In this study, TBF-HCl loaded liposome and ethosome formulations and also gel form of these formulations were prepared. The formulations were characterized and in vitro and ex vivo release studies were performed. Nail characterization studies were also performed to examine the effect of formulations and experimental conditions on nail surface. As a result, all formulations can serve as efficient formulations for ungual application of TBF-HCl. By the way, the results of the accumulation studies suggested that liposome poloxamer gel formulation could be promising system for ungual drug delivery due to the better accumulation and easier application of the formulation.
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Affiliation(s)
- Sakine Tuncay Tanrıverdi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, 35100 Bornova, Izmir, Turkey.
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