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Woerthmann B, Totzauer L, Briesen H. Delamination and wetting behavior of natural hot-melt coating materials. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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2
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Corzo C, Lopes DG, Lochmann D, Reyer S, Stehr M, Salar-Behzadi S. Novel approach for overcoming the stability challenges of lipid-based excipients. Part 1: Screening of solid-state and physical properties of polyglycerol esters of fatty acids as advanced pharmaceutical excipients. Eur J Pharm Biopharm 2020; 148:134-147. [DOI: 10.1016/j.ejpb.2020.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 01/12/2020] [Accepted: 01/20/2020] [Indexed: 10/25/2022]
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3
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Séquier F, Faivre V, Lanne JY, Daste G, Renouard M, Lesieur S. Critical steps during the prilling process of molten lipids: Main stumbling blocks due to pharmaceutical excipient properties. Int J Pharm 2020; 576:119036. [PMID: 31953083 DOI: 10.1016/j.ijpharm.2020.119036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 01/06/2020] [Accepted: 01/11/2020] [Indexed: 11/28/2022]
Abstract
Prilling by ultrasonic jet break-up is an efficient process to produce perfectly spherical microparticles homogeneous in size. However, the material properties could affect the manufacturability and the final product properties especially with lipid-based excipients which often exhibit complex structural properties. This work presents the characterisation of six lipid-based excipients differing by their melting point and polymorphic behaviour which were used to produce microspheres using a pilot-scale prilling equipment. The experimental results were compared to theoretical calculations, especially the droplet solidification time which is a key-parameter for this process. This work highlighted that monotropic polymorphism of excipients and supercooling effect have a significant impact on process parameters which should be considered with care during formulation design.
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Affiliation(s)
- F Séquier
- Université Paris-Saclay, CNRS, Institut Galien Paris Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France; Sanofi Winthrop Industrie, 1 Rue de la Vierge, 33 565 Carbon Blanc Cedex, France
| | - V Faivre
- Université Paris-Saclay, CNRS, Institut Galien Paris Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France.
| | - J-Y Lanne
- Sanofi Winthrop Industrie, 1 Rue de la Vierge, 33 565 Carbon Blanc Cedex, France
| | - G Daste
- Sanofi Winthrop Industrie, 1 Rue de la Vierge, 33 565 Carbon Blanc Cedex, France
| | - M Renouard
- Sanofi Winthrop Industrie, 1 Rue de la Vierge, 33 565 Carbon Blanc Cedex, France
| | - S Lesieur
- Université Paris-Saclay, CNRS, Institut Galien Paris Sud, 5 rue JB Clément, 92296 Châtenay-Malabry, France
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4
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Salar-Behzadi S, Corzo C, Schaden L, Laggner P, Zimmer A. Correlation between the solid state of lipid coating and release profile of API from hot melt coated microcapsules. Int J Pharm 2019; 565:569-578. [DOI: 10.1016/j.ijpharm.2019.05.036] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/12/2019] [Accepted: 05/13/2019] [Indexed: 01/25/2023]
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5
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Albertini B, Perissutti B, Bertoni S, Zanolla D, Franceschinis E, Voinovich D, Lombardo F, Keiser J, Passerini N. Combining Mechanochemistry and Spray Congealing for New Praziquantel Pediatric Formulations in Schistosomiasis Treatment. Int J Mol Sci 2019; 20:ijms20051233. [PMID: 30870971 PMCID: PMC6429213 DOI: 10.3390/ijms20051233] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 11/16/2022] Open
Abstract
Praziquantel (PZQ) is the first line drug for the treatment of schistosome infections and is included in the WHO Model List of Essential Medicines for Children. In this study, the association of mechanochemical activation (MA) and the spray congealing (SC) technology was evaluated for developing a child-friendly PZQ dosage form, with better product handling and biopharmaceutical properties, compared to MA materials. A 1:1 by wt PZQ—Povidone coground—was prepared in a vibrational mill under cryogenic conditions, for favoring amorphization. PZQ was neat ground to obtain its polymorphic form (Form B), which has an improved solubility and bioactivity. Then, activated PZQ powders were loaded into microparticles (MPs) by the SC technology, using the self-emulsifying agent Gelucire® 50/13 as a carrier. Both, the activated powders and the corresponding loaded MPs were characterized for morphology, wettability, solubility, dissolution behavior, drug content, and drug solid state (Hot Stage Microscopy (HSM), Differential Scanning Calorimetry (DSC), X-Ray Powder Diffraction Studies (PXRD), and FT-IR). Samples were also in vitro tested for a comparison with PZQ against Schistosoma mansoni newly transformed schistosomula (NTS) and adults. MPs containing both MA systems showed a further increase of biopharmaceutical properties, compared to the milled powders, while maintaining PZQ bioactivity. MPs containing PZQ Form B represented the most promising product for designing a new PZQ formulation.
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Affiliation(s)
- Beatrice Albertini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Serena Bertoni
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Debora Zanolla
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Erica Franceschinis
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, via Marzolo 5, 35131 Padova, Italy.
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Flavio Lombardo
- Helminth Drug Development Unit, Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Socinstr.57, CH-4051 Basel, Switzerland.
- Universität Basel, Petersplatz 1, P.O. Box, CH-4001 Basel, Switzerland.
| | - Jennifer Keiser
- Helminth Drug Development Unit, Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Socinstr.57, CH-4051 Basel, Switzerland.
- Universität Basel, Petersplatz 1, P.O. Box, CH-4001 Basel, Switzerland.
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
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Siepmann J, Faham A, Clas SD, Boyd BJ, Jannin V, Bernkop-Schnürch A, Zhao H, Lecommandoux S, Evans JC, Allen C, Merkel OM, Costabile G, Alexander MR, Wildman RD, Roberts CJ, Leroux JC. Lipids and polymers in pharmaceutical technology: Lifelong companions. Int J Pharm 2019; 558:128-142. [PMID: 30639218 DOI: 10.1016/j.ijpharm.2018.12.080] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 12/22/2018] [Accepted: 12/24/2018] [Indexed: 02/06/2023]
Abstract
In pharmaceutical technology, lipids and polymers are considered pillar excipients for the fabrication of most dosage forms, irrespective of the administration route. They play various roles ranging from support vehicles to release rate modifiers, stabilizers, solubilizers, permeation enhancers and transfection agents. Focusing on selected applications, which were discussed at the Annual Scientific Meeting of the Gattefossé Foundation 2018, this manuscript recapitulates the fundamental roles of these two important classes of excipients, either employed alone or in combination, and provides insight on their functional properties in various types of drug formulations. Emphasis is placed on oral formulations for the administration of active pharmaceutical ingredients with low aqueous solubilities or poor permeation properties. Additionally, this review article covers the use of lipids and polymers in the design of colloidal injectable delivery systems, and as substrates in additive manufacturing technologies for the production of tailor-made dosage forms.
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Affiliation(s)
- Juergen Siepmann
- University of Lille, Inserm, CHU Lille, U1008, 59000 Lille, France
| | - Amina Faham
- DuPont Health & Nutrition (formerly Dow Pharma Solutions), 8810 Horgen, Switzerland
| | | | - Ben J Boyd
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia
| | | | - Andreas Bernkop-Schnürch
- University of Innsbruck, Institute of Pharmacy, Center for Chemistry and Biomedicine, 6020 Innsbruck, Austria
| | - Hang Zhao
- Laboratoire de Chimie des Polymères Organiques LCPO, UMR 5629 CNRS, Université de Bordeaux, Bordeaux-INP, 33600 Pessac, France
| | - Sébastien Lecommandoux
- Laboratoire de Chimie des Polymères Organiques LCPO, UMR 5629 CNRS, Université de Bordeaux, Bordeaux-INP, 33600 Pessac, France
| | - James C Evans
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Christine Allen
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON M5S 3M2, Canada
| | - Olivia M Merkel
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Gabriella Costabile
- Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Morgan R Alexander
- Advanced Materials and Healthcare Technologies, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Ricky D Wildman
- Centre for Additive Manufacturing, Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK
| | - Clive J Roberts
- Advanced Materials and Healthcare Technologies, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
| | - Jean-Christophe Leroux
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland.
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Samiullah MH, Pulst M, Golitsyn Y, Busse K, Poppe S, Hussain H, Reichert D, Kressler J. Solid State Phase Transitions in Poly(ethylene oxide) Crystals Induced by Designed Chain Defects. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b00508] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Muhammad Haris Samiullah
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Martin Pulst
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Yury Golitsyn
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Karsten Busse
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Silvio Poppe
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Hazrat Hussain
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Detlef Reichert
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Jörg Kressler
- Faculty of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
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Truong-Cong T, Millart E, Tran LTC, Amenitsch H, Frebourg G, Lesieur S, Faivre V. A scalable process to produce lipid-based compartmented Janus nanoparticles with pharmaceutically approved excipients. Nanoscale 2018; 10:3654-3662. [PMID: 29431806 DOI: 10.1039/c7nr08488a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the field of nanotechnologies, theranostic approaches and fixed-dose combination products require the development of innovative carriers able to co-encapsulate several entities of interest. This communication describes the preparation and characterization of lipid-based Janus compartmented nanoparticles. They were successfully prepared using a scalable process with pharmaceutically approved excipients. The analysis of the microscopic structure and supramolecular organization demonstrated the formation of two physico-chemically different compartments enabling the co-administration at once of both liposoluble and hydrosoluble active pharmaceutical ingredients.
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Affiliation(s)
- Tri Truong-Cong
- Institut Galien Paris-Sud, Université Paris-Saclay, Univ. Paris-Sud, Labex LERMIT, 5 rue Jean-Baptiste Clément, Châtenay-Malabry 92296, France.
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9
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Pulst M, Schneemann C, Ruda P, Golitsyn Y, Grefe AK, Stühn B, Busse K, Reichert D, Kressler J. Chain Tilt and Crystallization of Ethylene Oxide Oligomers with Midchain Defects. ACS Macro Lett 2017; 6:1207-1211. [PMID: 35650796 DOI: 10.1021/acsmacrolett.7b00757] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Many text books and publications do not focus on the necessity of chain tilting in crystalline lamellae of oligomers and polymers, a fundamental aspect of their crystallization already discussed by Flory. Herein we investigate the chain tilt of ethylene oxide oligomers (EOs) containing various midchain defects by WAXS, SAXS and solid state 13C MAS NMR spectroscopy. At low temperatures, one out of the two EO chains of EO9-meta-EO9 and EO11-TR-EO11 containing a 1,3-disubstituted benzene or a 1,4-disubstituted 1,2,3-triazole defect in central position of the oligomer chain forms crystals and the other EO chain as well as the defect remain in the amorphous phase. The aromatic midchain defect of these two oligomers can be incorporated into the crystalline lamella upon heating below Tm. Then, the adjoining amorphous EO chain crosses from the lamellae to the amorphous regions at an angle ξ, which is preordained by the substitution pattern of the aromatic defect, revealing that the chain tilt angle ranges between 36° ≤ ϕ ≤ 60°.
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Affiliation(s)
- Martin Pulst
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Christian Schneemann
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Paweł Ruda
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Yury Golitsyn
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Ann-Kathrin Grefe
- Institute
of Condensed Matter Physics, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - Bernd Stühn
- Institute
of Condensed Matter Physics, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - Karsten Busse
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Detlef Reichert
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
| | - Jörg Kressler
- Faculty
of Natural Sciences II, Martin Luther University Halle-Wittenberg, D-06099 Halle (Saale), Germany
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11
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El Hadri M, Achahbar A, El Khamkhami J, Khelifa B, Faivre V, Abbas O, Bresson S. Lyotropic behavior of Gelucire 50/13 by XRD, Raman and IR spectroscopies according to hydration. Chem Phys Lipids 2016; 200:11-23. [PMID: 27318039 DOI: 10.1016/j.chemphyslip.2016.05.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 05/05/2016] [Accepted: 05/10/2016] [Indexed: 10/21/2022]
Abstract
The present paper discuss the structural and vibrational properties of polyoxyethylene glycol glycerides (Gelucire 50/13) during the hydration with increasing water from 0% to 80%. The Gelucire 50/13 used as sustained release matrix forming agent in pharmaceutical applications and it was essentially studied by Small and Wide Angle X-ray Scattering (SWAXS), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy according to the rate of hydration. The hydration behavior of this amphiphilic excipient has been investigated in the spectral range 4000-0cm-1 in Raman spectroscopy, and 4000-600cm-1 in FTIR. At increasing water contents Gelucire 50/13 forms successive bicontinuous to micellar supramolecular structures, and the vibrational changes were directly correlated with this conformational changes of the Gelucire structure. Overall, Raman and IR spectroscopy clearly demonstrated that the different functional groups studied could be characterized independently, allowing for the understanding of their role in Gelucire polymorphism.
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Affiliation(s)
- M El Hadri
- Laboratoire de Physique de la Matière Condensée, Université Abdelmalek Essaâdi, Tétouan, Morocco
| | - A Achahbar
- Laboratoire de Physique de la Matière Condensée, Université Abdelmalek Essaâdi, Tétouan, Morocco
| | - J El Khamkhami
- Laboratoire de Physique de la Matière Condensée, Université Abdelmalek Essaâdi, Tétouan, Morocco
| | - B Khelifa
- Faculté des sciences, Université d'Artois, Lens, France; Laboratoire de Physique des Systèmes Complexes, Université Picardie Jules Verne, 33 rue St. Leu, 80039 Amiens cedex, France
| | - V Faivre
- Equipe Physico-chimie des Systèmes Polyphasés, UMR CNRS 8612, Labex LERMIT Université Paris Sud, France
| | - O Abbas
- Walloon Agricultural Research Centre (CRA-W), Valorisation of Agricultural Products, Department, Food and Feed Quality Unit (U15), 'Henseval Building', Chaussée de Namur 24, 5030 Gembloux, Belgium
| | - S Bresson
- Laboratoire de Physique des Systèmes Complexes, Université Picardie Jules Verne, 33 rue St. Leu, 80039 Amiens cedex, France.
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Codoni D, Cowan J, Bradley J, Mcauley WJ, O'connell MA, Qi S. Disc-shaped polyoxyethylene glycol glycerides gel nanoparticles as novel protein delivery vehicles. Int J Pharm 2015; 496:1015-25. [DOI: 10.1016/j.ijpharm.2015.10.067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 10/21/2015] [Accepted: 10/28/2015] [Indexed: 01/28/2023]
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Codoni D, Belton P, Qi S. Nanostructural analysis of water distribution in hydrated multicomponent gels using thermal analysis and NMR relaxometry. Mol Pharm 2015; 12:2068-79. [PMID: 25945869 DOI: 10.1021/mp5008508] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Highly complex, multicomponent gels and water-containing soft materials have varied applications in biomedical, pharmaceutical, and food sciences, but the characterization of these nanostructured materials is extremely challenging. The aim of this study was to use stearoyl macrogol-32 glycerides (Gelucire 50/13) gels containing seven different species of glycerides, PEG, and PEG-esters, as model, complex, multicomponent gels, to investigate the effect of water content on the micro- and nanoarchitecture of the gel interior. Thermal analysis and NMR relaxometry were used to probe the thermal and diffusional behavior of water molecules within the gel network. For the highly concentrated gels (low water content), the water activity was significantly lowered due to entrapment in the dense gel network. For the gels with intermediate water content, multiple populations of water molecules with different thermal responses and diffusion behavior were detected, indicating the presence of water in different microenvironments. This correlated with the network architecture of the freeze-dried gels observed using SEM. For the gels with high water content, increased quantities of water with similar diffusion characteristics as free water could be detected, indicating the presence of large water pockets in these gels. The results of this study provide new insights into structure of Gelucire gels, which have not been reported before because of the complexity of the material. They also demonstrate that the combination of thermal analysis and NMR relaxometry offers insights into the structure of soft materials not available by the use of each technique alone. However, we also note that in some instances the results of these measurements are overinterpreted and we suggest limitations of the methods that must be considered when using them.
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Affiliation(s)
- Doroty Codoni
- †School of Pharmacy, University of East Anglia, Norwich, Norfolk NR4 7TJ, United Kingdom.,§Procarta Biosystems Ltd., Innovation Centre, Norwich Research Park, Norwich, Norfolk NR4 7GJ, United Kingdom
| | - Peter Belton
- ‡School of Chemistry, University of East Anglia, Norwich, Norfolk NR4 7TJ, United Kingdom
| | - Sheng Qi
- †School of Pharmacy, University of East Anglia, Norwich, Norfolk NR4 7TJ, United Kingdom
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El Hadri M, Achahbar A, El Khamkhami J, Khelifa B, Tran Le Tuyet C, Faivre V, Abbas O, El Marssi M, Bougrioua F, Bresson S. Vibrational behavior of Gelucire 50/13 by Raman and IR spectroscopies: A focus on the 1800–1000cm−1 spectral range according to temperature and degree of hydration. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.062] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Otun SO, Meehan E, Qi S, Craig DQM. The use of quasi-isothermal modulated temperature differential scanning calorimetry for the characterization of slow crystallization processes in lipid-based solid self-emulsifying systems. Pharm Res 2014; 32:1316-24. [PMID: 25330742 PMCID: PMC4356888 DOI: 10.1007/s11095-014-1535-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 09/26/2014] [Indexed: 12/24/2022]
Abstract
Purpose Slow or incomplete crystallization may be a significant manufacturing issue for solid lipid-based dosage forms, yet little information is available on this phenomenon. In this investigation we suggest a novel means by which slow solidification may be monitored in Gelucire 44/14 using quasi-isothermal modulated temperature DSC (QiMTDSC). Methods Conventional linear heating and cooling DSC methods were employed, along with hot stage microscopy (HSM), for basic thermal profiling of Gelucire 44/14. QiMTDSC experiments were performed on cooling from the melt, using a range of incremental decreases in temperature and isothermal measurement periods. Results DSC and HSM highlighted the main (primary) crystallization transition; solid fat content analysis and kinetic analysis were used to profile the solidification process. The heat capacity profile from QiMTDSC indicated that after an initial energetic primary crystallisation, the lipid underwent a slower period of crystallization which continued to manifest at much lower temperatures than indicated by standard DSC. Conclusions We present evidence that Gelucire 44/14 undergoes an initial crystallization followed by a secondary, slower process. QIMTDSC appears to be a promising tool in the investigation of this secondary crystallization process.
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Affiliation(s)
- Sarah O Otun
- School of Pharmacy, University of East Anglia, Earlham Road, Norwich, Norfolk, NR4 7TJ, UK
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Jannin V, Rodier JD, Musakhanian J. Polyoxylglycerides and glycerides: Effects of manufacturing parameters on API stability, excipient functionality and processing. Int J Pharm 2014; 466:109-21. [DOI: 10.1016/j.ijpharm.2014.03.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 02/13/2014] [Accepted: 03/02/2014] [Indexed: 01/13/2023]
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Jannin V, Cuppok Y. Hot-melt coating with lipid excipients. Int J Pharm 2013; 457:480-7. [DOI: 10.1016/j.ijpharm.2012.10.026] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/03/2012] [Accepted: 10/13/2012] [Indexed: 11/23/2022]
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18
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Qi S, Belton P, McAuley W, Codoni D, Darji N. Moisture Uptake of Polyoxyethylene Glycol Glycerides Used as Matrices for Drug Delivery: Kinetic Modelling and Practical Implications. Pharm Res 2012; 30:1123-36. [DOI: 10.1007/s11095-012-0948-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2012] [Accepted: 11/21/2012] [Indexed: 12/01/2022]
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Rahman MA, Hussain A, Hussain MS, Mirza MA, Iqbal Z. Role of excipients in successful development of self-emulsifying/microemulsifying drug delivery system (SEDDS/SMEDDS). Drug Dev Ind Pharm 2012; 39:1-19. [DOI: 10.3109/03639045.2012.660949] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Qi S, Marchaud D, Craig DQM. An investigation into the mechanism of dissolution rate enhancement of poorly water-soluble drugs from spray chilled gelucire 50/13 microspheres. J Pharm Sci 2010; 99:262-74. [PMID: 19653284 DOI: 10.1002/jps.21832] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The production and physicochemical characterisation of spray chilled Gelucire 50/13 microspheres is described with a view to improving the dissolution of a poorly water-soluble drug, piroxicam, and understanding the fundamental mechanisms associated with the improved drug release. Thermorheological testing was developed as a fast screening method for predicting the processability of dispersions for spray chilling preparation. Spray chilled piroxicam loaded microspheres were spherical in shape with a median diameter of circa 150 microm. DSC indicated no interaction between piroxicam and lipid matrix, while HSM studies performed in polarized light mode indicated that the spheres contained distinct drug crystals. Polarising light microscopy and small-angle XRD investigations on the hydration behaviour of the lipid and the spray chilled microspheres revealed the formation of liquid crystalline phases depending on the degree of hydration. The dissolution behaviour of the piroxicam loaded microspheres showed significant improvements compared to drug alone. The particle size, drug loading and aging of the microspheres were all found to have an influence on the release behaviour. It was proposed that Gelucire 50/13 microspheres release the entrapped piroxicam via formation of a lyotropic liquid crystalline phase, which allows dissolution of the drug particles in a finely divided, high surface area and well-wetted state.
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Affiliation(s)
- Sheng Qi
- School of Chemical Sciences and Pharmacy, University of East Anglia, Norwich NR4 7TJ, UK.
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22
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Tajiri T, Morita S, Sakamoto R, Suzuki M, Yamanashi S, Ozaki Y, Kitamura S. Release mechanisms of acetaminophen from polyethylene oxide/polyethylene glycol matrix tablets utilizing magnetic resonance imaging. Int J Pharm 2010; 395:147-53. [PMID: 20580795 DOI: 10.1016/j.ijpharm.2010.05.021] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2009] [Revised: 04/28/2010] [Accepted: 05/18/2010] [Indexed: 11/15/2022]
Abstract
Release mechanism of acetaminophen (AAP) from extended-release tablets of hydrogel polymer matrices containing polyethylene oxide (PEO) and polyethylene glycol (PEG) were achieved using flow-through cell with magnetic resonance imaging (MRI). The hydrogel forming abilities are observed characteristically and the layer thickness which is corresponding to the diffusion length of AAP has a good correlation with the drug release profiles. In addition, polymeric erosion contribution to AAP releasing from hydrogel matrix tablets was directly quantified using size-exclusion chromatography (SEC). The matrix erosion profile indicates that the PEG erosion kinetic depends primarily on the composition ratio of PEG to PEO. The present study has confirmed that the combination of in situ MRI and SEC should be well suited to investigate the drug release mechanisms of hydrogel matrix such as PEO/PEG.
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Affiliation(s)
- Tomokazu Tajiri
- Pharmaceutical Analysis, Pharmaceutical Research & Technology Laboratories, Technology, Astellas Pharma Inc, Yaizu, Shizuoka 425-0072, Japan.
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Gómez Gaete C, Tsapis N, Silva L, Bourgaux C, Fattal E. Morphology, structure and supramolecular organization of hybrid 1,2-dipalmitoyl-sn-glycero-3-phosphatidylcholine–hyaluronic acid microparticles prepared by spray drying. Eur J Pharm Sci 2008; 34:12-21. [DOI: 10.1016/j.ejps.2008.02.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2007] [Revised: 01/25/2008] [Accepted: 02/07/2008] [Indexed: 11/24/2022]
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Jannin V, Musakhanian J, Marchaud D. Approaches for the development of solid and semi-solid lipid-based formulations. Adv Drug Deliv Rev 2008; 60:734-46. [PMID: 18045728 DOI: 10.1016/j.addr.2007.09.006] [Citation(s) in RCA: 210] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2007] [Accepted: 09/30/2007] [Indexed: 10/22/2022]
Abstract
Interest in Lipid Based Drug Delivery (LBDD) has developed over the past decade fuelled by a better understanding of the multiple roles lipids may play in enhancing oral bioavailability. Moreover, the emergence of novel excipients with acceptable regulatory and safety profiles coupled with advances in formulation technologies have greatly improved the potential for successful lipid based formulations. With the growing interest in this field, there is an increasing need for guidelines in excipient selection and characterization; material handling, formulation design, and processing techniques to obtain effective and patient-compliant dosage forms. The aim of this review is to present the recent approaches in selecting the most appropriate lipid system(s); methods for characterization of their behavior in vitro and in vivo; and the current formulation and processing techniques to obtain various solid dosage forms.
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Lalanne M, Andrieux K, Paci A, Besnard M, Ré M, Bourgaux C, Ollivon M, Desmaele D, Couvreur P. Liposomal formulation of a glycerolipidic prodrug for lymphatic delivery of didanosine via oral route. Int J Pharm 2007; 344:62-70. [PMID: 17616448 DOI: 10.1016/j.ijpharm.2007.05.064] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Revised: 05/24/2007] [Accepted: 05/25/2007] [Indexed: 11/23/2022]
Abstract
Didanosine is a polar drug with poor membrane absorption and high hepatic first pass metabolism. This study aimed at developing a lipidic formulation of a glycerolipidic prodrug of didanosine in order to improve its bioavailability. In the course of a preformulation study, the glycerolipidic prodrug of didanosine was characterized by microscopy, DSC and XRDT. In anhydrous conditions, the prodrug displayed a polymorphic behaviour similar to that of triglycerides. Then, we evaluated three types of lipidic formulations (emulsions, mixed micelles and liposomes) in order to encapsulate the prodrug. Solubilities in water - even in the presence of taurocholate micelles - but also in some oils were very low (max 244 microg/mL) as the prodrug was found to be amphiphilic (log P=2). On the contrary, the prodrug was found to be perfectly incorporated in dipalmitoylphosphatidylcholine (DPPC) multilamellar liposomes up to a ratio of 1:5 (mol:mol) prodrug:DPPC as suggested by HPLC-UV and DSC experiments. Moreover, these liposomes could be freeze-dried whereas the chemical integrity of the prodrug was preserved. Then, the freeze-dried liposomal preparation could be formulated as gastro-resistant capsules to prevent didanosine from acidic degradation. Further experiments are on the way to evaluate in vitro the absorption of prodrug incorporated in liposomes by enterocytes.
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Affiliation(s)
- M Lalanne
- Univ. Paris-Sud, UMR CNRS 8612, IFR 141, F-92296 Châtenay-Malabry, France
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Brubach JB, Jannin V, Mahler B, Bourgaux C, Lessieur P, Roy P, Ollivon M. Structural and thermal characterization of glyceryl behenate by X-ray diffraction coupled to differential calorimetry and infrared spectroscopy. Int J Pharm 2007; 336:248-56. [PMID: 17207945 DOI: 10.1016/j.ijpharm.2006.11.057] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2006] [Accepted: 11/28/2006] [Indexed: 11/28/2022]
Abstract
Physical and thermal properties of glyceryl behenate (Compritol 888 ATO) used as sustained-release matrix in pharmaceutical applications are studied by coupled time-resolved synchrotron X-ray diffraction and Differential Scanning Calorimetry combined with Infrared Spectroscopy. With these techniques, all polymorphs formed in glyceryl behenate, analyzed as received and after various thermal treatments from quenching to slow crystallization, are characterized. By using different well-controlled mixtures of mono-, di- and tribehenate, we identify each lamellar phase observed in the glyceryl behenate. Finally the influence of the crystallization rate on the formation of preferential conformations was also analyzed in order to bring insights into the polymorphism of glyceryl behenate. By changing the crystallization rate of the sample, it was shown that one can favor the formation of preferential polymorphs in the sample. In particular the crystallization at 10 degrees C/min seems to be well adapted for producing a single lamellar phase with a period of 60.9 A while a crystallization rate of 0.4 degrees C/min produces three different lamellar phases.
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Affiliation(s)
- J B Brubach
- Synchrotron SOLEIL, Saint Aubin, 91192 Gif sur Yvette Cedex, France.
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