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Suzuki T, Sato K, Seki T, Seki T. Study of Polymer Nanofilms Using for High-Throughput Screening in the Development of Transdermal Therapeutic System. Chem Pharm Bull (Tokyo) 2022; 70:868-875. [PMID: 36450585 DOI: 10.1248/cpb.c22-00457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
We investigated polymer nanofilm (PNF) for use in high-throughput screening (HTS) to promote the development of transdermal therapeutic systems (TTS). The drug permeability of PNF with a 1 : 1 weight mix ratio of poly(L-lactic acid) (PLLA) and poly(methylhydrosiloxane) (PMHS) (PLLA/PMHS (1/1) PNF) and Strat-M® of the transdermal diffusion test membrane, was evaluated using 12 kinds of drugs with the logarithmic value of n-octanol/water partition coefficients of -4.70 to 3.86. The lag time of PLLA/PMHS (1/1) PNF made via polymer alloying was significantly shorter than that of Strat-M® for 10 drug types, and the formation of a highly diffusible PMHS-rich phase accompanying the formation of a sea-island structure was suggested as a contributing factor. Additionally, a high correlation was confirmed between the measured value for the logarithm of the apparent permeability coefficient of PLLA/PMHS (1/1) PNF and the literature values for the logarithm of the apparent permeability coefficient of human skin (r = 0.929). This study shows that PLLA/PMHS (1/1) PNF can reliably predict drug permeability in human skin and can potentially be used in HTS for developing TTS.
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Affiliation(s)
| | - Kanae Sato
- Faculty of Pharmaceutical Sciences, Josai University
| | - Tomohiro Seki
- Faculty of Pharmaceutical Sciences, Josai University
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Puri V, Froelich A, Shah P, Pringle S, Chen K, Michniak-Kohn B. Quality by Design Guided Development of Polymeric Nanospheres of Terbinafine Hydrochloride for Topical Treatment of Onychomycosis Using a Nano-Gel Formulation. Pharmaceutics 2022; 14:pharmaceutics14102170. [PMID: 36297605 PMCID: PMC9611585 DOI: 10.3390/pharmaceutics14102170] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/29/2022] [Accepted: 10/07/2022] [Indexed: 11/28/2022] Open
Abstract
Superficial fungal diseases of the skin and nails are an increasingly common occurrence globally, requiring effective topical treatment to avoid systemic adverse effects. Polymeric nanoparticles have demonstrated sustained and effective drug delivery in a variety of topical formulations. The aim of this project was to develop polymeric antifungal nanospheres containing terbinafine hydrochloride (TBH) to be loaded into a hydrogel formulation for topical nail drug delivery. A quality by design (QbD) approach was used to achieve optimized particles with the desired quality target product profile (QTPP). Polyvinyl alcohol (PVA) at 2% w/v and a drug to polymer ratio of 1:4, together with a robust set of processes and material attributes, resulted in nanoparticles of 108.7 nm with a polydispersity index (PDI) of 0.63, 57.43% recovery, and other desirable characteristics such as zeta potential (ZP), particle shape, aggregation, etc. The nanospheres were incorporated into a carbomer-based gel, and the delivery of TBH through this formulation was evaluated by means of in vitro drug release testing (IVRT) and ex vivo nail permeation study. The gel containing the TBH nanospheres demonstrated a slower and controlled drug release profile compared with the control gel, in addition to a more efficient delivery into the nail. These antifungal nanospheres can be utilized for topical therapy of a multitude of superficial fungal infections.
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Affiliation(s)
- Vinam Puri
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- Center for Dermal Research, Life Science Building, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Anna Froelich
- Chair and Department of Pharmaceutical Technology, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Parinbhai Shah
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- Center for Dermal Research, Life Science Building, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Shernelle Pringle
- Department of Biomedical Sciences, School of Graduate Studies, Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
| | - Kevin Chen
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- Center for Dermal Research, Life Science Building, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
| | - Bozena Michniak-Kohn
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, NJ 08855, USA
- Center for Dermal Research, Life Science Building, Rutgers, The State University of New Jersey, Piscataway, NJ 08854, USA
- Correspondence: ; Tel.: +1-(848)-445-3589
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Pan F, Amarjargal A, Altenried S, Liu M, Zuber F, Zeng Z, Rossi RM, Maniura-Weber K, Ren Q. Bioresponsive Hybrid Nanofibers Enable Controlled Drug Delivery through Glass Transition Switching at Physiological Temperature. ACS APPLIED BIO MATERIALS 2021; 4:4271-4279. [PMID: 35006839 DOI: 10.1021/acsabm.1c00099] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
To avoid excessive usage of antibiotics and antimicrobial agents, smart wound dressings permitting controlled drug release for treatment of bacterial infections are highly desired. In search of a sensitive stimulus to activate drug release under physiological conditions, we found that the glass transition temperature (Tg) of a polymer or polymer blend can be an ideal parameter because a thermal stimulus can regulate drug release at the physiological temperature of 37 °C. A well-tuned Tg for a controlled drug release from fibers at 37 °C was achieved by varying the blending ratio of Eudragit® RS 100 and poly(methyl methacrylate). Octenidine, an antimicrobial agent often used in wound treatment, was encapsulated into the polymer blend during the electrospinning process and evaluated for its controlled release based on modulation of temperature. The thermal switch of the nanofibrous membranes can be turned "on" at physiological temperature (37 °C) and "off" at room temperature (25 °C), conferring a controlled release of octenidine. It was found that octenidine can be released in an amount at least 8.5 times higher (25 mg·L-1) during the "on" stage compared to the "off" stage after 24 h, which was regulated by the wet Tg (34.8-36.5 °C). The "on"/"off" switch for controlled drug release can moreover be repeated at least 5 times. Furthermore, the fabricated nanofibrous membranes displayed a distinctive antibacterial activity, causing a log3 reduction of the viable cells for both Gram negative and positive pathogens at 37 °C, when the thermal switch was "on". This study forms the groundwork for a treatment concept where no external stimulus is needed for the release of antimicrobials at physiological conditions, and will help reduce the overuse of antibiotics by allowing controlled drug release.
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Affiliation(s)
- Fei Pan
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Altangerel Amarjargal
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.,Power Engineering School, Mongolian University of Science and Technology, Baga Toiruu 34, 14191 Ulaanbaatar, Mongolia
| | - Stefanie Altenried
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Mengdi Liu
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland.,Department of Earth- and Environmental Sciences, Ludwig Maximilian University of Munich, Theresienstrasse 41, 80333 Munich, Germany
| | - Flavia Zuber
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Zhihui Zeng
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Cellulose & Wood Materials, Ueberlandstrasse 129, 8600 Duebendorf, Switzerland
| | - René M Rossi
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biomimetic Membranes and Textiles, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Katharina Maniura-Weber
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
| | - Qun Ren
- Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Biointerfaces, Lerchenfeldstrasse 5, 9014 St. Gallen, Switzerland
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Jung F, Thurn M, Krollik K, Li D, Dressman J, Alig E, Fink L, Schmidt MU, Wacker MG. Sustained-release hot melt extrudates of the weak acid TMP-001: A case study using PBB modelling. Eur J Pharm Biopharm 2021; 160:23-34. [PMID: 33484866 DOI: 10.1016/j.ejpb.2021.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 11/27/2022]
Abstract
Over the last 30 years, hot melt extrusion has become a leading technology in the manufacture of amorphous drug delivery systems. Mostly applied as an 'enabling formulation' for poorly soluble compounds, application in the design of sustained-release formulations increasingly attracts the attention of the pharmaceutical industry. The drug candidate TMP-001 is currently under evaluation for the early treatment of Multiple Sclerosis. Although this weak acid falls into class II of the Biopharmaceutics Classification System, the compound exhibits high solubility in the upper intestine resulting in high peroral bioavailability. In the present studies, four different formulation prototypes varying in their sustained-release behavior were developed, using L-arginine as a pore-forming agent in concentrations ranging between 0 and 20%. Initially, biorelevant release testing was applied to assess the dissolution behavior of the prototypes. For these formulations, a total drug release of 44.7%, 64.6%, 75%, and 90.5% was achieved in FaSSIF-v2 after 24 h. Two candidates were selected for further characterization considering the crystal structure and the physical stability of the amorphous state of TMP-001 in the formulations together with the release behavior in Level II biorelevant media. Our findings indicate L-arginine as a valuable excipient in the formulation of hot melt extrudates, as its presence led to a considerable stabilization of the amorphous state and favorably impacted the milling process and release behavior of TMP-001. To properly evaluate the proposed formulations and the importance of colonic dissolution and absorption on the overall bioavailability, a physiologically-based biopharmaceutics model was used.
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Affiliation(s)
- Fabian Jung
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Theodor-Stern-Kai 7, D-60596 Frankfurt, Germany; Institute of Pharmaceutical Technology, Goethe University, Max-von-Laue-Straße 9, D-60438 Frankfurt/Main, Germany
| | - Manuela Thurn
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Theodor-Stern-Kai 7, D-60596 Frankfurt, Germany
| | - Katharina Krollik
- Institute of Pharmaceutical Technology, Goethe University, Max-von-Laue-Straße 9, D-60438 Frankfurt/Main, Germany
| | - David Li
- Department of Pharmacy, Faculty of Science, National University of Singapore, 5 Science Drive 2, Singapore 117545, Singapore
| | - Jennifer Dressman
- Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Theodor-Stern-Kai 7, D-60596 Frankfurt, Germany; Institute of Pharmaceutical Technology, Goethe University, Max-von-Laue-Straße 9, D-60438 Frankfurt/Main, Germany
| | - Edith Alig
- Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Straße 7, D-60438 Frankfurt/Main, Germany
| | - Lothar Fink
- Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Straße 7, D-60438 Frankfurt/Main, Germany
| | - Martin U Schmidt
- Institute of Inorganic and Analytical Chemistry, Goethe University, Max-von-Laue-Straße 7, D-60438 Frankfurt/Main, Germany
| | - Matthias G Wacker
- Department of Pharmacy, Faculty of Science, National University of Singapore, 5 Science Drive 2, Singapore 117545, Singapore.
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Qu Y, Lai WL, Xin YR, Zhu FQ, Zhu Y, Wang L, Ding YP, Xu Y, Liu HF. Development, Optimization, and Evaluation In Vitro/In Vivo of Oral Liquid System for Synchronized Sustained Release of Levodopa/Benserazide. AAPS PharmSciTech 2019; 20:312. [PMID: 31529266 DOI: 10.1208/s12249-019-1511-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 08/12/2019] [Indexed: 01/28/2023] Open
Abstract
To enhance efficiency, convenience, and safety of Parkinson's disease (PD) treatment for geriatric patients, an advanced suspension of Levodopa/Benserazide hydrochloride (LD/BH) has been prepared by cation-exchange resin and used to synchronize sustained release of LD and BH by optimizing coating parameters and prescription. For the purpose, LD and BH were immobilized on the surface of cation-exchange resin, respectively. Based on HPLC results, the cation-exchange resin showed high loading capacity. The studies on drug loading mechanism indicated that both drugs were immobilized by electrostatic interaction rather than physical adsorption. After PEG modification, pretreated drug-resin complexes were coated by emulsion-solvent evaporation method. In order to control drug release in a sustained manner, coating parameters of drug-resin microcapsules were optimized respectively by single-factor analysis. Further, coating prescription of the microcapsules was optimized to synchronize sustained release of LD and BH in vitro by orthogonal design. Utilizing optimal LD-resin microcapsules and BH-resin microcapsules, LD/BH suspension, containing both of them, was prepared by an optimal formulation and characterized by accelerated test and pharmacokinetic study in vivo. The accelerated test confirmed high stability of LD/BH suspension. According to pharmacokinetic results in vivo, in contrast with LD/BH commercial tablets, LD/BH suspensions did not only synchronize sustained release of both drugs but also show good bioequivalence. As LD/BH sustained release suspension can synchronize sustained release of multiple active ingredients by oral administration, the suspension presents promising oral dosage forms for geriatric patients with PD. An advanced Levodopa/Benserazide hydrochloride (LD/BH) suspension, prepared by cation-exchange resin and optimized microencapsulation, synchronizes sustained releases of LD and BH in vivo to benefit Parkinson's disease treatment for geriatric patients.
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Amarjargal A, Brunelli M, Fortunato G, Spano F, Kim CS, Rossi RM. On-demand drug release from tailored blended electrospun nanofibers. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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7
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Role of plasticizer in membrane coated extended release oral drug delivery system. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2017.12.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Morsi N, Ghorab D, Refai H, Teba H. Nanodispersion-loaded mucoadhesive polymeric inserts for prolonged treatment of post-operative ocular inflammation. J Microencapsul 2017; 34:280-292. [DOI: 10.1080/02652048.2017.1321048] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nadia Morsi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Dalia Ghorab
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Hanan Refai
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Misr University for Science and Technology, Egypt
| | - Hoda Teba
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Misr University for Science and Technology, Egypt
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9
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Albarahmieh E, Qi S, Craig DQ. Hot melt extruded transdermal films based on amorphous solid dispersions in Eudragit RS PO: The inclusion of hydrophilic additives to develop moisture-activated release systems. Int J Pharm 2016; 514:270-281. [DOI: 10.1016/j.ijpharm.2016.06.137] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Revised: 06/29/2016] [Accepted: 06/30/2016] [Indexed: 10/20/2022]
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10
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Contri RV, Soares RMD, Pohlmann AR, Guterres SS. Structural analysis of chitosan hydrogels containing polymeric nanocapsules. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:234-42. [PMID: 25063115 DOI: 10.1016/j.msec.2014.05.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 03/31/2014] [Accepted: 05/03/2014] [Indexed: 11/26/2022]
Abstract
The incorporation of different concentrations of polymeric nanocapsule suspensions into chitosan hydrogels is proposed, in order to study the structure of a formulation with the properties of great tissue adhesion and controlled release of the nanoencapsulated drugs, represented here by capsaicinoids. The gels presented acceptable acid pH values and the nanoparticles were visually observed in the system. A transition from the micrometer to the nanometer scales suggested that the nanocapsules are initially agglomerated in the hydrogel. A sedimentation tendency of the nanocapsules in the system was observed and only physical interaction between the chitosan chains and polymeric nanocapsules was verified. The hydrogels, despite the presence of nanocapsules, presented shear-thinning properties and an elastic behavior under low and high frequencies, showing a very structured gel network. The observed variation in the elasticity of the hydrogels may arise from a decrease in the number of interactions and degree of entanglement between the chitosan chains, caused by the presence of nanoparticles.
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Affiliation(s)
- Renata V Contri
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| | - Rosane M D Soares
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| | - Adriana R Pohlmann
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Instituto de Química, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
| | - Silvia S Guterres
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil.
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Highly hemocompatible zwitterionic micelles stabilized by reversible cross-linkage for anti-cancer drug delivery. Colloids Surf B Biointerfaces 2014; 115:384-90. [DOI: 10.1016/j.colsurfb.2013.12.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 12/09/2013] [Accepted: 12/10/2013] [Indexed: 11/20/2022]
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12
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Cooppan S, Choonara YE, du Toit LC, Ndesendo VMK, Kumar P, Pillay V. A novel pH-dependant and double crosslinked polymethacrylate-based polysphere matrix for enteric delivery of isoniazid. Pharm Dev Technol 2013; 18:1066-77. [DOI: 10.3109/10837450.2012.685654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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13
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Affiliation(s)
- Samaneh Khanlari
- Department of Chemical and Biological Engineering; Centre for Catalysis Research and Innovation; University of Ottawa; 161 Louis Pasteur Pvt. Ottawa ON, Canada K1N 6N5
| | - Marc A. Dubé
- Department of Chemical and Biological Engineering; Centre for Catalysis Research and Innovation; University of Ottawa; 161 Louis Pasteur Pvt. Ottawa ON, Canada K1N 6N5
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Yehia S, Elshafeey A, ElMeshad A, Al-Bialey H. Formulation and évaluation of itopride microcapsules in human volunteers. J Drug Deliv Sci Technol 2013. [DOI: 10.1016/s1773-2247(13)50036-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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15
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Khodaverdi E, Tekie FSM, Amoli SS, Sadeghi F. Comparison of plasticizer effect on thermo-responsive properties of Eudragit RS films. AAPS PharmSciTech 2012; 13:1024-30. [PMID: 22843079 DOI: 10.1208/s12249-012-9827-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 07/16/2012] [Indexed: 11/30/2022] Open
Abstract
Preparation of an intelligent drug delivery system which releases the drug in response to the environmental stimuli in a controlled manner is one of the interesting subjects and it is the purpose of this study. Films composed of Eudragit RS and different percentages of plasticizers (0%, 5%, 10%, or 20% w/w based on polymer weight), poly ethylene glycol 400 or triethyl citrate (TEC), were prepared by solvent casting method. Glass transition temperatures of the films were determined by differential scanning colorimetery. Water uptake and drug permeation through membranes with the glass transition temperature (Tg) close to the body temperature were investigated. Propranolol hydrochloride and acetaminophen were used as model drugs in permeation studies. The results showed that Eudragit RS films with 20% of either plasticizer showed thermo-responsivity around body temperature. The water uptake of the films and the permeation rates of both drugs increased at temperatures above the Tg of the films. The films containing TEC was found to be more appropriate thermo-responsive membrane due to a higher sensitivity to temperature and more ability to control drug release.
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Qin Y, Yuan M, Li L, Li W, Xue J. Formulation and evaluation of in situ forming PLA implant containing tinidazole for the treatment of periodontitis. J Biomed Mater Res B Appl Biomater 2012; 100:2197-202. [PMID: 22887609 DOI: 10.1002/jbm.b.32788] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 07/02/2012] [Accepted: 07/07/2012] [Indexed: 11/05/2022]
Abstract
Periodontitis is caused by periodontopathic bacteria and antibacterial agents are placed in a periodontal pocket with the intention of enhancing the local effect. To maximize the therapeutic effects while reducing the adverse effects, tinidazole was delivered by in situ forming system. One approach for reducing burst release rate was to testify in situ forming effect. The effect of 0%-10% (w/w) polyethylene glycol 400 and 3% (w/w) glycerol on the tinidazole release from a poly(DL-lactide) (PLA) injectable implant was evaluated. The results showed that the in vitro initial burst release rate was decreased in the presence of poly(ethyleneglycol) PEG 400 and glycerol. A formulation containing 30% (w/w) PLA (M(w) 7300) dissolved in 62% (w/w) N-methyl-2-pyrrolidone, 5% (w/w) PEG 400, and 3%(w/w) glycerol with 5% (w/w) tinidazole was shown to be optimum. Twelve adult beagle dogs were used in the periodontitis model. The treatment group I, II, and positive control group was administrated with gel containing 5%(w/w) tinidazole, 2.5%(w/w) tinidazole, and periocline, respectively. Dog studies revealed that periocline and the developed formulation could significantly decrease symptoms of periodontitis, and they were better than gel containing 2.5% (w/w) tinidazole. The developed formulation could sustain the release of tinidazole for local delivery over 7 days. These findings suggested that the developed formulation was a viable alternative to conventional drug to cure periodontitis.
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Affiliation(s)
- Yuyue Qin
- Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650550, People's Republic of China.
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Parodi B, Russo E, Caviglioli G, Baldassari S, Gaglianone N, Schito AM, Cafaggi S. A chitosan lactate/poloxamer 407-based matrix containing Eudragit RS microparticles for vaginal delivery of econazole: design and in vitro evaluation. Drug Dev Ind Pharm 2012; 39:1911-20. [PMID: 22681543 DOI: 10.3109/03639045.2012.694589] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A matrix based on chitosan lactate and poloxamer 407 was evaluated as a delivery system for the vaginal administration of the antifungal drug econazole. The matrix was investigated both containing the pure drug and after introducing microparticles of Eudragit RS 100 containing econazole. Eudragit RS 100 microparticles were prepared using an emulsion-extraction method and dispersed in a solution containing chitosan lactate (2% w/w) and poloxamer 407 (1.7% w/w). The microparticles, obtained with a yield of 64% w/w and an encapsulation efficiency of 42% w/w, had a diameter of less than 2 μm and a drug loading of 13% w/w. The compressed matrices, characterized by DSC, swelling, erosion, release and mucoadhesion studies, had behaviours dependent on the relative amounts of the contained microparticles. The matrix without microparticles (MECN) showed zero-order release kinetics, with a maximum drug-release of 60% w/w, while those containing 50 or 75% w/w microparticles showed a diffusion controlled release up to 8 and 16 h, respectively, and a linear trend after those time intervals, caused by the erosion process, which allowed reaching a drug-release of approximately 100% w/w at 22 h. In in vitro experiments, the matrices were mucoadhesive and active in inhibiting the growth of Candida albicans 796.
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Affiliation(s)
- Brunella Parodi
- Dipartimento di Chimica e Tecnologie Farmaceutiche ed Alimentari , Genoa , Italy
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18
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Eudragit E100 surface activity and lipid interactions. Colloids Surf B Biointerfaces 2012; 91:84-9. [DOI: 10.1016/j.colsurfb.2011.10.041] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 10/20/2011] [Accepted: 10/21/2011] [Indexed: 02/04/2023]
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19
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Elbary AA, Aboelwafa AA, Al Sharabi IM. Once daily, high-dose mesalazine controlled-release tablet for colonic delivery: optimization of formulation variables using Box-Behnken design. AAPS PharmSciTech 2011; 12:1454-64. [PMID: 22038474 PMCID: PMC3225513 DOI: 10.1208/s12249-011-9708-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Accepted: 10/06/2011] [Indexed: 11/30/2022] Open
Abstract
The aim of this work was to statistically optimize a novel high-dose, mesalazine colonic delivery matrix system, potentially suitable for once daily administration, using simple wet granulation method. A hydrophobic-hydrophilic polymeric blend was used to manipulate drug release. A three-factor, three-level Box-Behnken design was used to construct polynomial models correlating the dependent and independent variables. Independent formulation variables were the percentages of the hydrophilic polymer Carbopol® 940, hydrophobic polymer Eudragit® RS, and the superdisintegrant croscarmellose sodium. The cumulative percentages of drug released at 6, 10, and 14 h were selected as dependent variables and restricted to 7.5-22.5% (Y(1)), 42.5-57.5 % (Y(2)), and 72.5-87.5% (Y(3)), respectively. A second-order polynomial equation fitted to the data was used to optimize the independent formulation variables. Based on Box-Behnken experimental design, different mesalazine release profiles were obtained. The optimized formulation containing 5.72% Carbopol®, 9.77% Eudragit® RS, and 1.45% croscarmellose sodium was prepared according to the software determined levels. It provided a release profile which was very close to the targeted release profile, where the calculated values of f(1) and f(2) were 8.47 and 67.70, respectively, and followed zero-order release kinetics.
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Affiliation(s)
- Ahmed Abd Elbary
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-aini Street, Cairo, 11562 Egypt
| | - Ahmed A. Aboelwafa
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-aini Street, Cairo, 11562 Egypt
| | - Ibrahim M. Al Sharabi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Kasr El-aini Street, Cairo, 11562 Egypt
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20
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Formulation optimization of sustained-release ammonio methacrylate copolymer microspheres. Effects of log p and concentration of polar cosolvents, and role of the drug/copolymer ratio. Pharmaceutics 2011; 3:830-47. [PMID: 24309310 PMCID: PMC3857060 DOI: 10.3390/pharmaceutics3040830] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 10/11/2011] [Accepted: 10/27/2011] [Indexed: 11/16/2022] Open
Abstract
The objectives of this work were the formulation optimization of the preparation process parameters and to evaluate spray-dried sustained-release microspheres using ammonio methacrylate copolymer (AMC) as a polymer matrix. The effects of log P and the concentrations of the cosolvents (acetone, methyl ethyl ketone and n-butyl acetate) and different drug/copolymer ratios as independent variables on the physicochemical parameters (the W1/O emulsion viscosity, the microsphere production yield, the average particle size, the encapsulation efficiency) and the cumulative in vitro drug release as dependent variables were studied. The optimization was carried out on the basis of the 33 factorial design study. The optimization process results showed that addition of polar cosolvents proved effective, linear relationships were observed between the independent and the dependent variables. The best conditions were achieved by microspheres prepared by using a low/medium cosolvent log P, cosolvent concentration of 25-50% v/v and a drug/copolymer ratio of 1:16. The microspheres ensured sustained release with Nernst and Baker-Lonsdale release profiles.
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21
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Kalogeras IM. A novel approach for analyzing glass-transition temperature vs. composition patterns: Application to pharmaceutical compound+polymer systems. Eur J Pharm Sci 2011; 42:470-83. [DOI: 10.1016/j.ejps.2011.02.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 01/22/2011] [Accepted: 02/07/2011] [Indexed: 11/28/2022]
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22
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Preparation and characterization of water-soluble microcapsule for sustained drug release using Eudragit RS 100. Macromol Res 2010. [DOI: 10.1007/s13233-010-1203-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Isosorbide-5-mononitrate (5-ISMN) sustained-release pellets prepared by double layer coating for reducing 5-ISMN migration and sublimation. Int J Pharm 2010; 400:138-44. [DOI: 10.1016/j.ijpharm.2010.08.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2010] [Revised: 08/29/2010] [Accepted: 08/31/2010] [Indexed: 11/19/2022]
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24
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Patel N, Madan P, Lin S. Development and evaluation of controlled release ibuprofen matrix tablets by direct compression technique. Pharm Dev Technol 2010; 16:1-11. [DOI: 10.3109/10837450903460467] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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25
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Nanoscale mechanical measurement determination of the glass transition temperature of poly(lactic acid)/everolimus coated stents in air and dissolution media. Eur J Pharm Sci 2009; 36:493-501. [DOI: 10.1016/j.ejps.2008.12.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 11/21/2008] [Accepted: 12/01/2008] [Indexed: 11/18/2022]
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26
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Formulation of thermoresponsive and bioadhesive gel for treatment of oesophageal pain and inflammation. Eur J Pharm Biopharm 2008; 72:260-5. [PMID: 19038337 DOI: 10.1016/j.ejpb.2008.10.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2008] [Revised: 10/08/2008] [Accepted: 10/27/2008] [Indexed: 11/21/2022]
Abstract
The aim of this study was the formulation and examination of a novel thermoresponsive and bioadhesive, in situ gelling drug delivery system, which can be used in the treatment of oesophageal pain and inflammation. A bioadhesive cellulose derivative (Metolose) 60SH) was used as a thermoresponsive material, because Metolose has thermal gelation properties at certain temperature. The thermal gelation temperature (T(2)) of Metolose 60SH 2 w/w% solution is above body temperature (65-66 degrees C), but by using different methods (Metolose 60SH concentration, auxiliary materials), it can be shifted near to body temperature. The pH alteration between pH=2-10 and the application of different alcohols did not influence the gelation temperature, but using water-soluble salts and changing the concentration of Metolose 60SH solution between 2 and 3 w/w% the thermal gelation point could be decreased. Different NSAIDs were used as model drugs and which had not influence on thermal gelation temperature, but difference in in vitro liberation and penetration can be observed. In vitro adhesion test pointed out that the condition of investigated membrane can change the adhesion. Morphological test of oesophageal tissue showed that investigated materials had no irritative or tissue-damaging effect on the oesophageal mucosa even after 12h.
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27
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Zhang L, Liu W, Lin L, Chen D, Stenzel MH. Degradable Disulfide Core-Cross-Linked Micelles as a Drug Delivery System Prepared from Vinyl Functionalized Nucleosides via the RAFT Process. Biomacromolecules 2008; 9:3321-31. [DOI: 10.1021/bm800867n] [Citation(s) in RCA: 145] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ling Zhang
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences and Engineering, The University of New South Wales, Sydney NSW 2052, Australia, Cooperative Research Centre (CRC) for Polymers, 8 Redwood Drive, Notting Hill Vic 3168, Australia, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Wenguang Liu
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences and Engineering, The University of New South Wales, Sydney NSW 2052, Australia, Cooperative Research Centre (CRC) for Polymers, 8 Redwood Drive, Notting Hill Vic 3168, Australia, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Lin Lin
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences and Engineering, The University of New South Wales, Sydney NSW 2052, Australia, Cooperative Research Centre (CRC) for Polymers, 8 Redwood Drive, Notting Hill Vic 3168, Australia, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Dayong Chen
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences and Engineering, The University of New South Wales, Sydney NSW 2052, Australia, Cooperative Research Centre (CRC) for Polymers, 8 Redwood Drive, Notting Hill Vic 3168, Australia, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Martina H. Stenzel
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Sciences and Engineering, The University of New South Wales, Sydney NSW 2052, Australia, Cooperative Research Centre (CRC) for Polymers, 8 Redwood Drive, Notting Hill Vic 3168, Australia, and School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China
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28
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An assessment of the interactions between diclofenac sodium and ammonio methacrylate copolymer using thermal analysis and Raman spectroscopy. J Pharm Biomed Anal 2008; 46:288-94. [DOI: 10.1016/j.jpba.2007.10.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2007] [Revised: 10/04/2007] [Accepted: 10/06/2007] [Indexed: 11/18/2022]
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29
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Csóka G, Gelencsér A, Makó A, Marton S, Zelkó R, Klebovich I, Antal I. Potential application of Metolose in a thermoresponsive transdermal therapeutic system. Int J Pharm 2007; 338:15-20. [PMID: 17331682 DOI: 10.1016/j.ijpharm.2007.01.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2006] [Revised: 12/28/2006] [Accepted: 01/13/2007] [Indexed: 11/25/2022]
Abstract
The purpose of the present study was to formulate a novel thermoresponsive membrane controlled therapeutic system from Metolose for possible transdermal application. Metolose gel shows thermal gelation property, which can be characterized by two (T(1), T(2)) temperatures. A sharp decrease of viscosity can be measured at T(1), but gelation can be observed at T(2). Different types of Metolose polymers were compared considering their thermoresponsive behaviour. Only thermal gelation was observed in the case of Metolose SM, while Metolose SH showed a sudden decrease of viscosity at T(1). Since this temperature is above the body temperature, so it should be shifted to the skin temperature in case of possible transdermal application. Modulation of thermoresponsibility was followed by rheological method, and the thermoresponsive drug release from Metolose gel was studied by static liberation test. Our results demonstrated that the effect of different salts (NaCl, NaHCO(3), KCl) of various concentrations in Metolose SH gel reduced T(1) to the skin temperature, which enabled enhanced drug release.
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Affiliation(s)
- G Csóka
- Department of Pharmaceutics, Semmelweis University, Hogyes E. Street 7, H-1092 Budapest, Hungary.
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30
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. LJ, . WB, . WY. Thermo-sensitive Polymers for Controlled-release Drug Delivery Systems. INT J PHARMACOL 2006. [DOI: 10.3923/ijp.2006.513.519] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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31
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Uto K, Yamamoto K, Hirase S, Aoyagi T. Temperature-responsive cross-linked poly(epsilon-caprolactone) membrane that functions near body temperature. J Control Release 2005; 110:408-413. [PMID: 16332350 DOI: 10.1016/j.jconrel.2005.10.024] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2005] [Revised: 09/14/2005] [Accepted: 10/31/2005] [Indexed: 11/30/2022]
Abstract
The objective of this study is to develop a sensitive temperature-responsive material that would function near body temperature. To achieve this purpose, we compounded 2-branched and 4-branched poly(epsilon-caprolactone) macromonomers to modulate the transition temperatures of the resulting cross-linked materials. The temperature-responsive properties were studied using differential scanning calorimetry and X-ray diffraction measurements. As a result, the mixing ratios of each macromonomer or the total macromonomer concentrations were very dominant in modulating the transition temperatures. The materials could successfully control the permeation of the model drug, prednisolone, near body temperature.
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Affiliation(s)
- Koichiro Uto
- Department of Nanostructure and Advanced Materials, Graduate School of Science and Engineering, Kagoshima University, 1-21-40, Korimoto, Kagoshima 890-0065, Japan
| | - Kazuya Yamamoto
- Department of Nanostructure and Advanced Materials, Graduate School of Science and Engineering, Kagoshima University, 1-21-40, Korimoto, Kagoshima 890-0065, Japan
| | - Shohei Hirase
- Department of Nanostructure and Advanced Materials, Graduate School of Science and Engineering, Kagoshima University, 1-21-40, Korimoto, Kagoshima 890-0065, Japan
| | - Takao Aoyagi
- Department of Nanostructure and Advanced Materials, Graduate School of Science and Engineering, Kagoshima University, 1-21-40, Korimoto, Kagoshima 890-0065, Japan; PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho Kawaguchi, Saitama, Japan.
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32
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Literature Alerts. Drug Deliv 2005. [DOI: 10.1080/10717540500201502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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