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52
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Massaro Sousa L, Ferreira M. Densification behavior of dry spent coffee ground powders: Experimental analysis and predictive methods. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.08.069] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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53
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Bai Q, Mazza MG. Crystallization via shaking in a granular gas with van der Waals interactions. Phys Rev E 2019; 100:042910. [PMID: 31770995 DOI: 10.1103/physreve.100.042910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Indexed: 11/07/2022]
Abstract
We investigate the effect of van der Waals forces on a collection of granular particles by means of molecular dynamics simulations of a vibrated system in three dimensions. The van der Waals interactions introduce two phase coexistences: one between a random close packing and a gas and a second between a polycrystalline dense state and a gas, where the dense, disordered component crystallizes when the driving amplitude exceeds a threshold value. The region of stability of the ordered state in the nonequilibrium phase diagram grows in size as the Hamaker constant increases or the degree of dissipation increases.
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Affiliation(s)
- Qiong Bai
- Max Planck Institute for Dynamics and Self-Organization (MPIDS), D-37077 Göttingen, Germany
| | - Marco G Mazza
- Max Planck Institute for Dynamics and Self-Organization (MPIDS), D-37077 Göttingen, Germany.,Interdisciplinary Centre for Mathematical Modelling and Department of Mathematical Sciences, Loughborough University, Loughborough, Leicestershire LE11 3TU, United Kingdom
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54
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Sharma R, Setia G. Mechanical dry particle coating on cohesive pharmaceutical powders for improving flowability - A review. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2019.08.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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55
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Odeniyi MA, Adepoju AO, Jaiyeoba KT. Native and Modified
Digitaria exilis
Starch Nanoparticles as a Carrier System for the Controlled Release of Naproxen. STARCH-STARKE 2019. [DOI: 10.1002/star.201900067] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Michael A. Odeniyi
- Department of Pharmaceutics and Industrial Pharmacy, University of Ibadan200022 IbadanNigeria
| | - Adewale O. Adepoju
- Department of Pharmaceutics and Industrial Pharmacy, University of Ibadan200022 IbadanNigeria
| | - Kolawole T. Jaiyeoba
- Department of Pharmaceutics and Industrial Pharmacy, University of Ibadan200022 IbadanNigeria
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56
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Tanner T, Antikainen O, Pollet A, Räikkönen H, Ehlers H, Juppo A, Yliruusi J. Predicting tablet tensile strength with a model derived from the gravitation-based high-velocity compaction analysis data. Int J Pharm 2019; 566:194-202. [PMID: 31100384 DOI: 10.1016/j.ijpharm.2019.05.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/05/2019] [Accepted: 05/10/2019] [Indexed: 11/26/2022]
Abstract
In the present study, a model was developed to estimate tablet tensile strength utilizing the gravitation-based high-velocity (G-HVC) method introduced earlier. Three different formulations consisting of microcrystalline cellulose (MCC), dicalcium phosphate dihydrate (DCP), hydroxypropyl methylcellulose (HPMC), theophylline and magnesium stearate were prepared. The formulations were granulated using fluid bed granulation and the granules were compacted with the G-HVC method and an eccentric tableting machine. Compaction energy values defined from G-HVC data predicted tensile strength of the tablets surprisingly well. It was also shown, that fluid bed granulation improved the compaction energy intake of the granules in comparison to respective physical mixtures. In addition, general mechanical properties and elastic recovery were also examined for all samples. In this study it was finally concluded, that the data obtained by the method was of practical relevance in pharmaceutical formulation development.
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Affiliation(s)
- Timo Tanner
- Faculty of Pharmacy, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, Finland.
| | - Osmo Antikainen
- Faculty of Pharmacy, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, Finland
| | - Arne Pollet
- Faculty of Pharmaceutical Sciences, Ghent University, Belgium
| | - Heikki Räikkönen
- Faculty of Pharmacy, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, Finland
| | - Henrik Ehlers
- Faculty of Pharmacy, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, Finland
| | - Anne Juppo
- Faculty of Pharmacy, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, Finland
| | - Jouko Yliruusi
- Faculty of Pharmacy, Division of Pharmaceutical Chemistry and Technology, University of Helsinki, Finland
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57
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Looi YF, Ong SP, Julkifle A, Alias MS. Effects of pretreatment and spray drying on the physicochemical properties and probiotics viability of Moringa (Moringa oleiferaLam) leaf juice powder. J FOOD PROCESS PRES 2019. [DOI: 10.1111/jfpp.13915] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yih Foo Looi
- Department of Chemical & Environmental Engineering University of Nottingham Malaysia Semenyih Malaysia
| | - Sze Pheng Ong
- Department of Chemical & Environmental Engineering University of Nottingham Malaysia Semenyih Malaysia
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58
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Formulation and comparison of spray dried non-porous and large porous particles containing meloxicam for pulmonary drug delivery. Int J Pharm 2019; 559:68-75. [DOI: 10.1016/j.ijpharm.2019.01.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 01/10/2019] [Accepted: 01/11/2019] [Indexed: 11/20/2022]
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59
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Tran DT, Majerová D, Veselý M, Kulaviak L, Ruzicka MC, Zámostný P. On the mechanism of colloidal silica action to improve flow properties of pharmaceutical excipients. Int J Pharm 2018; 556:383-394. [PMID: 30529657 DOI: 10.1016/j.ijpharm.2018.11.066] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 11/29/2018] [Accepted: 11/30/2018] [Indexed: 10/27/2022]
Abstract
The mechanism of colloidal silica action to improve flow properties of pharmaceutical powders is known to be based on inter-particle force disruption by silica particles adhered to the particle surface. In the present article, the kinetic aspects of this action are investigated, focusing on non-spherical particles of different size. Blends comprising microcrystalline cellulose or calcium hydrogen phosphate dihydrate and colloidal silica were examined using powder rheometer. The blends were formulated to represent effects of particle size, surface texture, colloidal silica loading, and mixing time. Pre-conditioning, shear testing, compressibility, and flow energy measurements were used to monitor flow properties. Components and blends were analyzed using particle size analysis and scanning electron microscopy (SEM), using energy dispersive spectroscopy (EDS) and back-scattered electron (BSE) detection to determine surface particle arrangement. All studied parameters were found to have substantial effects on flow properties of powder blends. Those effects were explained by identifying key steps of colloidal silica action, which were found to proceed at substantially different rates, causing the flow properties change over time being dependent on the blend formulation and the component properties.
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Affiliation(s)
- Diem Trang Tran
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, Prague 6 166 28, Czech Republic
| | - Diana Majerová
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, Prague 6 166 28, Czech Republic
| | - Martin Veselý
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, Prague 6 166 28, Czech Republic
| | - Lukáš Kulaviak
- Department of Multiphase Reactors, Institute of Chemical Process Fundamentals of the ASCR, Rozvojová 2/135, Prague 6 165 02, Czech Republic
| | - Marek C Ruzicka
- Department of Multiphase Reactors, Institute of Chemical Process Fundamentals of the ASCR, Rozvojová 2/135, Prague 6 165 02, Czech Republic
| | - Petr Zámostný
- Department of Organic Technology, Faculty of Chemical Technology, University of Chemistry and Technology, Prague, Technická 5, Prague 6 166 28, Czech Republic.
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60
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Ivko T, Aslanian M, Bobrytska L, Popova N, Nazarova O, Bereznyakova N, Germanyuk T. Development of the Composition and Manufacturing Technology of a New Combined Drug: Lavaflam. Turk J Pharm Sci 2018; 15:263-270. [PMID: 32454669 DOI: 10.4274/tjps.79553] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 09/07/2017] [Indexed: 02/08/2023]
Abstract
Objectives Treatment of diseaes of the biliary system is one of the urgent problems of modern medicine. Materials and Methods An original pharmaceutical drug "Lavaflam" in the form of combined tablets, which includes a composition of herbal components flamin (0.05 g) and lavender oil (0.02 g), was proposed for the complex treatment of diseases of the biliary system. Flamin is phytomedicine from the immortelle flowers [Helichrysum arenarium (L.) Moench, Asteraceae], which contains a complex of active substances from the flavonoids group (salipurposide, isosalipurposide, kaempferol, luteolin). It is applied as a choleretic and an anti-inflammatory agent in cholecystitis, cholangitis, and biliary dyskinesia. Tablets were prepared by pressing for separate granulation technology. Results The lavender oil granulate was prepared using the solid phase method, and β-cyclodextrin was used as an excipient substance. The flamin granulate was prepared by mixing with the spherical-shaped filler mannitol PARTECK M 200. On the basis of previous studies, the excipients of the designed composition tablet "Lavaflam" were β-cyclodextrin (0.27 g), mannitol PARTECK M 200 (0.20 g), croscarmellose sodium (0.03 g), potato starch (0.022 g), PEG 6000 (0.002 g), and magnesium stearate (0.006 g). The assay of the main components of lavender oil with the references linalol and linalyl acetate was performed using gas chromatography. The assay of the total flavonoids of flamin was performed using spectrophotometry with isosalipurposide as the reference. Conclusion The new phytomedicine tablets "Lavaflam" meet European Pharmacopoeia requirements on the following parameters: appearance, geometric size, average weight, disintegration, friability, resistance of tablets to crushing, and quantification.
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Affiliation(s)
- Tanya Ivko
- National Pirogov Memorial Medical University, Vinnytsya, Ukraine
| | | | | | | | - Olena Nazarova
- State Enterprise State Scientific Center for Drugs and Medical Products, Kharkov, Ukraine
| | | | - Tamara Germanyuk
- National Pirogov Memorial Medical University, Vinnytsya, Ukraine
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61
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Abu Fara D, Rashid I, Alkhamis K, Al-Omari M, Chowdhry BZ, Badwan A. Modification of α-lactose monohydrate as a direct compression excipient using roller compaction. Drug Dev Ind Pharm 2018; 44:2038-2047. [PMID: 30095020 DOI: 10.1080/03639045.2018.1508224] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Deeb Abu Fara
- Chemical Engineering Department, School of Engineering, University of Jordan, Amman, Jordan
| | - Iyad Rashid
- The Jordanian Pharmaceutical Manufacturing Co, Naor, Jordan
| | - Khouloud Alkhamis
- Faculty of Pharmacy, University of Jordan for Science and Technology, Irbid, Jordan
| | | | - B. Z. Chowdhry
- Faculty of Engineering & Science, University of Greenwich (Medway Campus), Chatham Maritime, Kent, UK
| | - Adnan Badwan
- The Jordanian Pharmaceutical Manufacturing Co, Naor, Jordan
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62
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Association of PLGA Microspheres to Carrier Pellets by Fluid Bed Coating: A Novel Approach towards Improving the Flowability of Microparticles. JOURNAL OF PHARMACEUTICS 2018; 2018:3874348. [PMID: 30057848 PMCID: PMC6051010 DOI: 10.1155/2018/3874348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 04/24/2018] [Accepted: 05/09/2018] [Indexed: 12/02/2022]
Abstract
Micro- and nanoparticles have been vastly studied due to their biopharmaceutical advantages. However, these particles generally display very weak packing and poor mechanical properties. Hereby, a new methodology is proposed to associate poorly flowing particles to macrostructures targeting the improvement of flowability and redispersibility of the particles. Cecropia glaziovii-loaded PLGA microspheres (4.59 ± 0.04 μm) were associated with carrier pellets by film coating in a top-spray fluid bed equipment. Optimal conditions were determined employing a IV-Optimal factorial design and RGB image analysis as 1% (w/v) Kollicoat® Protect as coating polymer (2:1 weight ratio of coating suspension to carrier pellets), containing 5 mg/mL microspheres (loading of 28.07 ± 1.01 mg/g). The method led to an improvement of the overall flowability. No relevant molecular interactions between PLGA microspheres and polymers were found. Microspheres detached rapidly from the surface of the pellets, without agglomeration, when exposed to hydrodynamic forces. In vitro release profiles, prior to and after fluid bed coating, showed no relevant changes in drug release rate and extent. The methodology developed is suitable for further applications when an improvement on the flow properties and redispersibility of the product is desired. We showed an easy-to-implement methodology that can be executed without significant increase in costs.
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63
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Wang H, Wu L, Zhang T, Chen R, Zhang L. Continuous micro-feeding of fine cohesive powders actuated by pulse inertia force and acoustic radiation force in ultrasonic standing wave field. Int J Pharm 2018; 545:153-162. [PMID: 29729402 DOI: 10.1016/j.ijpharm.2018.05.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 04/09/2018] [Accepted: 05/01/2018] [Indexed: 11/18/2022]
Abstract
Stable continuous micro-feeding of fine cohesive powders has recently gained importance in many fields. However, it remains a great challenge in practice because of the powder aggregate caused by interparticle cohesive forces in small capillaries. This paper describes a novel method of feeding fine cohesive powder actuated by a pulse inertia force and acoustic radiation force simultaneously in an ultrasonic standing wave field using a tapered glass nozzle. Nozzles with different outlet diameters are fabricated using glass via a heating process. A pulse inertia force is excited to drive powder movement to the outlet section of the nozzle in a consolidated columnar rod mode. An acoustic radiation force is generated to suspend the particles and make the rod break into large quantities of small agglomerates which impact each other randomly. So the aggregation phenomenon in the fluidization of cohesive powders can be eliminated. The suspended powder is discharged continuously from the nozzle orifice owing to the self-gravities and collisions between the inner particles. The micro-feeding rates can be controlled accurately and the minimum values for RespitoseSV003 and Granulac230 are 0.4 mg/s and 0.5 mg/s respectively. The relative standard deviations of all data points are below 0.12, which is considerably smaller than those of existing vibration feeders with small capillaries.
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Affiliation(s)
- Hongcheng Wang
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Liqun Wu
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China.
| | - Ting Zhang
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Rangrang Chen
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Linan Zhang
- School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
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64
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Mayer-Laigle C, Blanc N, Rajaonarivony RK, Rouau X. Comminution of Dry Lignocellulosic Biomass, a Review: Part I. From Fundamental Mechanisms to Milling Behaviour. Bioengineering (Basel) 2018; 5:E41. [PMID: 29865229 PMCID: PMC6027489 DOI: 10.3390/bioengineering5020041] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/25/2018] [Accepted: 05/31/2018] [Indexed: 11/22/2022] Open
Abstract
The comminution of lignocellulosic biomass is a key operation for many applications as bio-based materials, bio-energy or green chemistry. The grinder used can have a significant impact on the properties of the ground powders, of those of the end-products and on the energy consumption. Since several years, the milling of lignocellulosic biomass has been the subject of numerous studies most often focused on specific materials and/or applications but there is still a lack of generic knowledge about the relation between the histological structure of the raw materials, the milling technologies and the physical and chemical properties of the powders. This review aims to point out the main process parameters and plant raw material properties that influence the milling operation and their consequences on the properties of ground powders and on the energy consumption during the comminution.
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Affiliation(s)
- Claire Mayer-Laigle
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
| | - Nicolas Blanc
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
| | - Rova Karine Rajaonarivony
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
| | - Xavier Rouau
- UMR Ingénierie des Agropolymères et des Technologies Emergentes (IATE), University of Montpellier, CIRAD, INRA, Montpellier SupAgro, Montpellier, France.
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65
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Goh HP, Heng PWS, Liew CV. Comparative evaluation of powder flow parameters with reference to particle size and shape. Int J Pharm 2018; 547:133-141. [PMID: 29803793 DOI: 10.1016/j.ijpharm.2018.05.059] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 05/11/2018] [Accepted: 05/23/2018] [Indexed: 10/16/2022]
Abstract
Powder flow is critical to the success of various pharmaceutical processes such as tableting and capsule filling. Despite a plethora of flow characterisation techniques and parameters available, powder flow still remains to be a not well understood subject. Inter-relationships between the various powder flow parameters in particular have not been well established. Furthermore, while it is known that particle size and shape are important determinants of powder flow, their relative impact on individual flow parameter is unclear. In this study, granules were evaluated for their flow properties using various characterisation methods. Through multivariate analysis, flow parameters were classified based on the underlying physical granule property. Angle of repose, Hausner ratio, shear cell parameters and avalanche flow were found to be affected primarily by powder cohesion, which was in turn determined by the smallest granule size fraction. On the other hand, powder compressibility and inter-particulate friction were the main factors underlying basic flow energy. Angle of internal friction was primarily affected by particle roundness and did not appear to describe powder bulk flow properties. This study showed that while the various flow characterisation techniques were different in terms of their applications, there were common physical attributes that governed the measurements.
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Affiliation(s)
- Hui Ping Goh
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Celine Valeria Liew
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
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66
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Fronczak SG, Browne CA, Krenek EC, Beaudoin SP, Corti DS. Non-contact AFM measurement of the Hamaker constants of solids: Calibrating cantilever geometries. J Colloid Interface Sci 2018; 517:213-220. [PMID: 29427887 DOI: 10.1016/j.jcis.2018.01.108] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 11/24/2022]
Abstract
HYPOTHESIS Surface effects arising from roughness and deformation can negatively affect the results of AFM contact experiments. Using the non-contact portion of an AFM deflection curve is therefore desirable for estimating the Hamaker constant, A, of a solid material. A previously validated non-contact quasi-dynamic method for estimating A is revisited, in which the cantilever tip is now always represented by an "effective sphere". In addition to simplifying this previous method, accurate estimates of A can still be obtained even though precise knowledge of the nanoscale geometric features of the cantilever tip are no longer required. EXPERIMENTS The tip's "effective" radius of curvature, Reff, is determined from a "calibration" step, in which the tip's deflection at first contact with the surface is measured for a substrate with a known Hamaker constant. After Reff is known for a given tip, estimates of A for other surfaces of interest are then determined. FINDINGS An experimental study was conducted to validate the new method and the obtained results are in good agreement with predictions from the Lifshitz approximation, when available. Since Reff accounts for all geometric uncertainties of the tip through a single fitted parameter, no visual fitting of the tip shape was required.
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Affiliation(s)
- Sean G Fronczak
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907-2100, United States
| | - Christopher A Browne
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907-2100, United States
| | - Elizabeth C Krenek
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907-2100, United States
| | - Stephen P Beaudoin
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907-2100, United States
| | - David S Corti
- Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907-2100, United States.
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67
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Sunkara D, Capece M. Influence of Material Properties on the Effectiveness of Glidants Used to Improve the Flowability of Cohesive Pharmaceutical Powders. AAPS PharmSciTech 2018; 19:1920-1930. [PMID: 29663287 DOI: 10.1208/s12249-018-1006-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 03/27/2018] [Indexed: 11/30/2022] Open
Abstract
This study investigated the effect of material properties, primarily particle size and surface energy, on the effectiveness of glidants used for the purpose of flowability enhancement. Three pharmaceutical grade glidants (Aerosil 200, Aerosil R972, and Cab-O-Sil M5P) were evaluated and blended with various pharmaceutical actives as well as cohesive excipients common to capsule and tablet formulation. Flowability enhancement was characterized by the flow function coefficient (ff c ). An industry-relevant mixer (Turbula mixer) and a highly efficient and effective mixer (LabRAM vibratory mixer) were used to further understand the effect of material properties on glidant effectiveness. While concepts of inter-particle cohesion and interaction strength were applied to evaluate their usefulness in understanding and predicting flowability enhancement, theoretical expectations did not fully explain the behavior of all three glidants. However, the study suggests that the low surface energy and optimal particle size of Aerosil R972 relative to the other glidants results in lower inter-particle force and consequently better flowability. Aerosil R972 was also shown to be more effectively utilized in the Turbula mixing process particularly for larger (d50 > 40 μm) and less cohesive (ff c > 3) materials. This may be due to its lower surface energy and hydrophobic surface which allows it to disperse easily. Overall, this study provides useful insight into the material properties which influence the effectiveness of glidants used in formulation development.
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68
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Jin Y, Lu H, Guo X, Gong X. Effect of water addition on flow properties of lignite particles. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2017.11.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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69
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Mokhtar M, Gosselin PM, François-Xavier L, Hildgen P. Tablet formulation of Famotidine-loaded P-gp inhibiting nanoparticles using PLA-g-PEG grafted polymer. Pharm Dev Technol 2018; 24:211-221. [PMID: 29564944 DOI: 10.1080/10837450.2018.1455695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Our work aimed at evaluating the use of permeability glycoprotein (P-gp) inhibiting nanoparticles (NPs) as a part of a suitable oral solid dosage to improve bioavailability. Famotidine (Pepcid®), a stomach acid production inhibitor, was used as a drug model to test our hypothesis. Famotidine-loaded NPs were prepared by solvent emulsion evaporation using PEG grafted on a polylactide acid (PLA) polymer backbone (PLA-g-PEG), with a 5% molar ratio of PEG versus lactic acid monomer and PEG of either 750 or 2000 Da molecular weight. Tablet formulation was composed of 40% Famotidine-loaded NPs, 52.5% microcrystalline cellulose as filler, 7% pre-gelatinized starch as binder/disintegrant, and 0.5% magnesium stearate as lubricant. Tablets containing 1.6 mg of Famotidine were prepared at an average weight of 500 mg, thickness of 6.2-6.5 mm, hardness of 5-8 kp, and disintegration time of <1 min. Our results suggest that Famotidine-loaded NPs using grafted PEG-g-PLA polymers can be formulated as an oral solid dosage form while effectively inhibiting P-gp mediated Famotidine efflux, irrespective of PEG molecular weights. This could therefore represent an attractive formulation alternative to enhance oral permeability and bioavailability of drugs that are P-gp substrates.
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Affiliation(s)
- Mohamed Mokhtar
- a Faculté de Pharmacie , Université de Montréal , Montreal , Canada.,b Faculty of Health Science , Sirte University , Sirte , Libya
| | | | | | - Patrice Hildgen
- a Faculté de Pharmacie , Université de Montréal , Montreal , Canada
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70
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Hayashi Y, Oishi T, Shirotori K, Marumo Y, Kosugi A, Kumada S, Hirai D, Takayama K, Onuki Y. Modeling of quantitative relationships between physicochemical properties of active pharmaceutical ingredients and tensile strength of tablets using a boosted tree. Drug Dev Ind Pharm 2018; 44:1090-1098. [DOI: 10.1080/03639045.2018.1434195] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yoshihiro Hayashi
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, Toyama-shi, Japan
| | - Takuya Oishi
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, Toyama-shi, Japan
| | - Kaede Shirotori
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, Toyama-shi, Japan
| | - Yuki Marumo
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, Toyama-shi, Japan
| | - Atsushi Kosugi
- Formulation Development Department, Development and Planning Division, Nichi-Iko Pharmaceutical Co., Ltd., Namerikawa-shi, Japan
| | - Shungo Kumada
- Formulation Development Department, Development and Planning Division, Nichi-Iko Pharmaceutical Co., Ltd., Namerikawa-shi, Japan
| | - Daijiro Hirai
- Formulation Development Department, Development and Planning Division, Nichi-Iko Pharmaceutical Co., Ltd., Namerikawa-shi, Japan
| | - Kozo Takayama
- Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Sakado, Japan
| | - Yoshinori Onuki
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, Toyama-shi, Japan
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71
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Hayashi Y, Tsuji T, Shirotori K, Oishi T, Kosugi A, Kumada S, Hirai D, Takayama K, Onuki Y. Relationships between response surfaces for tablet characteristics of placebo and API-containing tablets manufactured by direct compression method. Int J Pharm 2017; 532:82-89. [PMID: 28859939 DOI: 10.1016/j.ijpharm.2017.08.111] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 08/07/2017] [Accepted: 08/23/2017] [Indexed: 10/19/2022]
Abstract
In this study, we evaluated the correlation between the response surfaces for the tablet characteristics of placebo and active pharmaceutical ingredient (API)-containing tablets. The quantities of lactose, cornstarch, and microcrystalline cellulose were chosen as the formulation factors. Ten tablet formulations were prepared. The tensile strength (TS) and disintegration time (DT) of tablets were measured as tablet characteristics. The response surfaces for TS and DT were estimated using a nonlinear response surface method incorporating multivariate spline interpolation, and were then compared with those of placebo tablets. A correlation was clearly observed for TS and DT of all APIs, although the value of the response surfaces for TS and DT was highly dependent on the type of API used. Based on this knowledge, the response surfaces for TS and DT of API-containing tablets were predicted from only two and four formulations using regression expression and placebo tablet data, respectively. The results from the evaluation of prediction accuracy showed that this method accurately predicted TS and DT, suggesting that it could construct a reliable response surface for TS and DT with a small number of samples. This technique assists in the effective estimation of the relationships between design variables and pharmaceutical responses during pharmaceutical development.
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Affiliation(s)
- Yoshihiro Hayashi
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan.
| | - Takahiro Tsuji
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
| | - Kaede Shirotori
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
| | - Takuya Oishi
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
| | - Atsushi Kosugi
- Formulation Development Department, Development & Planning Division, Nichi-Oko Pharmaceutical Co., Ltd., 205-1, Shimoumezawa Namerikawa-shi, Toyama, 936-0857, Japan
| | - Shungo Kumada
- Formulation Development Department, Development & Planning Division, Nichi-Oko Pharmaceutical Co., Ltd., 205-1, Shimoumezawa Namerikawa-shi, Toyama, 936-0857, Japan
| | - Daijiro Hirai
- Formulation Development Department, Development & Planning Division, Nichi-Oko Pharmaceutical Co., Ltd., 205-1, Shimoumezawa Namerikawa-shi, Toyama, 936-0857, Japan
| | - Kozo Takayama
- Faculty of Pharmaceutical Sciences, Josai University, 1-1 Keyakidai, Sakado, Saitama 350-0295, Japan
| | - Yoshinori Onuki
- Department of Pharmaceutical Technology, Graduate School of Medicine and Pharmaceutical Science for Research, University of Toyama, 2630 Sugitani, Toyama-shi, Toyama, 930-0194, Japan
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72
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Della Bella A, Salomi E, Buttini F, Bettini R. The role of the solid state and physical properties of the carrier in adhesive mixtures for lung delivery. Expert Opin Drug Deliv 2017; 15:665-674. [DOI: 10.1080/17425247.2017.1371132] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Enrico Salomi
- Food and Drug Department, University of Parma, Parma, Italy
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73
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Sarkar S, Mukherjee R, Chaudhuri B. On the role of forces governing particulate interactions in pharmaceutical systems: A review. Int J Pharm 2017; 526:516-537. [DOI: 10.1016/j.ijpharm.2017.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Revised: 04/30/2017] [Accepted: 05/02/2017] [Indexed: 11/27/2022]
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74
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Trementozzi AN, Leung CY, Osei-Yeboah F, Irdam E, Lin Y, MacPhee JM, Boulas P, Karki SB, Zawaneh PN. Engineered particles demonstrate improved flow properties at elevated drug loadings for direct compression manufacturing. Int J Pharm 2017; 523:133-141. [DOI: 10.1016/j.ijpharm.2017.03.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 02/16/2017] [Accepted: 03/07/2017] [Indexed: 10/20/2022]
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75
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Etti CJ, Yusof YA, Chin NL, Mohd Tahir S. Tableting Properties and Compression Models of Labisia pumilaTablets. J Diet Suppl 2017; 14:132-145. [DOI: 10.1080/19390211.2016.1205703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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76
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Salazar A, Bleifuß J, Simon A, Schüßler S, Keusgen M, Stankiewicz N, von Hagen J. Compaction of chemically defined cell culture media increases its dissolution rate through an increase of solvent accessible surface area. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.05.065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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77
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Continuous melt granulation: Influence of process and formulation parameters upon granule and tablet properties. Eur J Pharm Biopharm 2016; 107:249-62. [DOI: 10.1016/j.ejpb.2016.07.021] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 07/14/2016] [Accepted: 07/18/2016] [Indexed: 11/19/2022]
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78
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Abbasfard H, Evans G, Moreno-Atanasio R. Effect of van der Waals force cut-off distance on adhesive collision parameters in DEM simulation. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.05.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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79
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Smith RR, Shah UV, Parambil JV, Burnett DJ, Thielmann F, Heng JYY. The Effect of Polymorphism on Surface Energetics of D-Mannitol Polymorphs. AAPS JOURNAL 2016; 19:103-109. [DOI: 10.1208/s12248-016-9978-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 08/17/2016] [Indexed: 11/30/2022]
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80
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Capece M, Silva KR, Sunkara D, Strong J, Gao P. On the relationship of inter-particle cohesiveness and bulk powder behavior: Flowability of pharmaceutical powders. Int J Pharm 2016; 511:178-189. [DOI: 10.1016/j.ijpharm.2016.06.059] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 06/07/2016] [Accepted: 06/24/2016] [Indexed: 11/24/2022]
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81
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Hirschberg C, Sun CC, Rantanen J. Analytical method development for powder characterization: Visualization of the critical drug loading affecting the processability of a formulation for direct compression. J Pharm Biomed Anal 2016; 128:462-468. [DOI: 10.1016/j.jpba.2016.06.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 06/08/2016] [Accepted: 06/08/2016] [Indexed: 11/30/2022]
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82
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Ren F, Zhou Y, Liu Y, Fu J, Jing Q, Ren G. A mixed solvent system for preparation of spherically agglomerated crystals of ascorbic acid. Pharm Dev Technol 2016; 22:818-826. [PMID: 27402196 DOI: 10.1080/10837450.2016.1203936] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The objective of this research was to develop a novel solvent system to prepare spherically agglomerated crystals (SAC) of ascorbic acid with improved flowability for direct compression. A spherical agglomeration method was developed by selecting the mixed solvents (n-butyl and ethyl acetate) as a poor solvent and the process was further optimized by using triangular phase diagram and particle vision measurement. Physiochemical properties of SAC were characterized and compared with original drug crystals. It showed that amount of poor solvent, ratio of solvent mixture, and drug concentration are critical for preparation of SAC with desirable properties. The solid state of SAC was same as original crystals according to DSC, XRD, and FT-IR results. There was no significant difference in solubility and dissolution rate of drug between SAC and original crystals. The flowability and packability of SAC as well as the tensile strength and elastic recovery of tablets made from SAC were all significantly improved when compared with original crystals and tablets from crystals. It is concluded that the present method was suitable to prepare SAC of ascorbic acid for direct compression.
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Affiliation(s)
- Fuzheng Ren
- a Laboratory of Pharmaceutical Crystal Engineering & Technology , School of Pharmacy, East China University of Science and Technology , Shanghai , China
| | - Yaru Zhou
- a Laboratory of Pharmaceutical Crystal Engineering & Technology , School of Pharmacy, East China University of Science and Technology , Shanghai , China
| | - Yan Liu
- a Laboratory of Pharmaceutical Crystal Engineering & Technology , School of Pharmacy, East China University of Science and Technology , Shanghai , China
| | - Jinping Fu
- a Laboratory of Pharmaceutical Crystal Engineering & Technology , School of Pharmacy, East China University of Science and Technology , Shanghai , China
| | - Qiufang Jing
- a Laboratory of Pharmaceutical Crystal Engineering & Technology , School of Pharmacy, East China University of Science and Technology , Shanghai , China
| | - Guobin Ren
- a Laboratory of Pharmaceutical Crystal Engineering & Technology , School of Pharmacy, East China University of Science and Technology , Shanghai , China
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83
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Peeters E, Vanhoorne V, Vervaet C, Remon JP. Lubricant sensitivity in function of paddle movement in the forced feeder of a high-speed tablet press. Drug Dev Ind Pharm 2016; 42:2078-2085. [PMID: 27277525 DOI: 10.1080/03639045.2016.1200067] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
CONTEXT The negative impact of magnesium stearate (MgSt) on the hardness of tablets is a well-known phenomenon, but the influence of paddle movement in the forced feeder on the lubricant effect during tablet compression is often neglected. OBJECTIVE The purpose of this research was to investigate the influence of paddle speed in the forced feeder on tablet tensile strength (TS). MATERIALS AND METHODS Mixtures of microcrystalline cellulose (MCC) and MgSt (0.5%) were blended using different methods (low & high shear). After blending, the formulations were compressed into tablets. All parameters of the tableting cycle were kept constant except the speed of the paddles in the forced feeder. RESULTS AND DISCUSSION The blending technique affected the sensitivity of the formulation to the paddle speed. The TS of pure MCC tablets did not change in function of paddle speed, while tablets prepared by low shear mixing became softer at higher paddle speed. The TS of tablets manufactured using the high-shear mixed blend was low and did not vary in function of paddle speed, suggesting that overlubrication already occurred during the initial blending step. Furthermore, analysis of the machine parameters allowed evaluation of the influence of the paddles on the flowability, initial packing, and compactability of the powder mixtures. CONCLUSION The results elucidated that during manufacturing of tablets using MgSt-containing blends care should not only be taken during the blending step prior to tableting, but also during the tableting process itself, as paddle speed can affect tablet TS, a critical quality attribute.
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Affiliation(s)
- Elisabeth Peeters
- a Laboratory of Pharmaceutical Technology , Ghent University , Ghent , Belgium
| | - Valérie Vanhoorne
- a Laboratory of Pharmaceutical Technology , Ghent University , Ghent , Belgium
| | - Chris Vervaet
- a Laboratory of Pharmaceutical Technology , Ghent University , Ghent , Belgium
| | - Jean-Paul Remon
- a Laboratory of Pharmaceutical Technology , Ghent University , Ghent , Belgium
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84
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Mangal S, Meiser F, Tan G, Gengenbach T, Morton DAV, Larson I. Applying surface energy derived cohesive-adhesive balance model in predicting the mixing, flow and compaction behaviour of interactive mixtures. Eur J Pharm Biopharm 2016; 104:110-6. [PMID: 27132984 DOI: 10.1016/j.ejpb.2016.04.021] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 04/05/2016] [Accepted: 04/26/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE In this study, we investigated the applicability of cohesive-adhesive balance (CAB) model to predict the interactive mixing behaviour of small excipient particles. Further, we also investigated the application of this CAB model to predict the flow and compactibility of resultant blends. METHODS Excipients created by co-spraying polyvinylpyrrolidone (PVP, a model pharmaceutical binder) with various l-leucine concentrations were used for this study. Paracetamol was used as model active pharmaceutical ingredient (API). The surface energy was used to derive the work of cohesion (wco) and work of adhesion (wad) to predict the interactive mixing behaviour of the excipients with paracetamol. The blends were visualised under a scanning electron microscopy microscope to assess the interactive mixing behaviour. In addition, the flow performance and tabletting behaviour of various blends were characterised. RESULTS The surface-energy derived work of adhesion (wad) between excipient and paracetamol particles increased, while the corresponding work of cohesion (wco) between excipient particles decreased, with increasing l-leucine concentrations. In blends for which the work of cohesion was higher than the work of adhesion (wco>wad), small excipient particles were apparent as agglomerates. For excipients with 5% and higher l-leucine concentrations, the work of adhesion between excipient and paracetamol particles was higher than or equivalent to the work of cohesion between excipient particles (wad⩾wco) and agglomerates were less apparent. This is an indicator of formation of homogeneous interactive mixtures. At 5% (w/w) excipient proportions, blends for which wad⩾wco demonstrated higher compactibility than other blends. Furthermore, at 10% (w/w) and higher excipient proportions, these blends also demonstrated better flow performance than other blends. CONCLUSION In conclusion, this is the first study to demonstrate that surface-energy derived CAB data effectively predict the interactive mixing behaviour of small excipient particles. Furthermore, at certain proportions of small excipient particles the CAB model also predicts the flow and compaction behaviour of the API/excipient blends.
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Affiliation(s)
- Sharad Mangal
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Felix Meiser
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Geoffrey Tan
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Thomas Gengenbach
- CSIRO Materials Science and Engineering, Bayview Avenue, Clayton, VIC 3168, Australia
| | - David A V Morton
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Ian Larson
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia.
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85
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Guiling X, Xiaoping C, Cai L, Pan X, Changsui Z. Experimental investigation on the flowability properties of cohesive carbonaceous powders. PARTICULATE SCIENCE AND TECHNOLOGY 2016. [DOI: 10.1080/02726351.2016.1154910] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Xu Guiling
- Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control, School of Energy and Mechanical Engineering, Nanjing Normal University, Nanjing, China
| | - Chen Xiaoping
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, China
| | - Liang Cai
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, China
| | - Xu Pan
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, China
| | - Zhao Changsui
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, China
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86
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Zhou H, Xiong Y, Pei Y. Effect of moisture content on dense-phase pneumatic conveying of pulverized lignite under high pressure. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2015.10.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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87
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Capece M, Ho R, Strong J, Gao P. Prediction of powder flow performance using a multi-component granular Bond number. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.08.031] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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88
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Kasten G, Silva LFC, Lemos-Senna E. Development of low density azithromycin-loaded polycaprolactone microparticles for pulmonary delivery. Drug Dev Ind Pharm 2015; 42:776-87. [PMID: 26289002 DOI: 10.3109/03639045.2015.1075032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT The development of low-density polymeric microparticles may be a useful approach to deliver antibiotics such as azithromycin into the lung. OBJECTIVE The aim of this study was to develop azithromycin-loaded low density polycaprolactone microparticles by the double emulsion/solvent evaporation method. MATERIALS AND METHODS Microparticles were prepared and characterized according to their physicochemical properties, drug loading, and drug release profiles. A full 2(3) factorial design was used to evaluate the effect of some independent variables on the drug loading and aerodynamic diameter of the particles. An in silico pulmonary deposition model was used to predict the lung deposition profiles for the formulations. RESULTS AND DISCUSSION The resulting particles presented drug loading up to 23.1% (wt%) and mean geometric diameters varying from 4.0 µm to 15.4 µm. Bulk and tapped densities were low, resulting in good or excellent flow properties. SEM images showed spherical particles with a smooth surface. However, hollow inner structures were observed, which may explain the low values of bulk density. The estimated aerodynamic diameters ranged from 2.3 µm to 8.9 µm. The in silico pulmonary deposition profiles indicated, for some formulations, that a significant fraction of the particles would be deposited in the deeper lung regions. CONCLUSIONS Statistical analysis demonstrated that not only drug loading but also the aerodynamic diameter of the microparticles is greatly affected by the preparation conditions. Overall, the results indicated that the low-density azithromycin-loaded microparticles with a relatively high respirable fraction may be obtained for the local treatment of lung infections.
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Affiliation(s)
- Georgia Kasten
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Luis Felipe Costa Silva
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
| | - Elenara Lemos-Senna
- a Departamento de Ciências Farmacêuticas , Centro de Ciências da Saúde, Universidade Federal de Santa Catarina , Florianópolis , SC , Brazil
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89
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Spath S, Drescher P, Seitz H. Impact of Particle Size of Ceramic Granule Blends on Mechanical Strength and Porosity of 3D Printed Scaffolds. MATERIALS 2015; 8:4720-4732. [PMID: 28793467 PMCID: PMC5455480 DOI: 10.3390/ma8084720] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 07/21/2015] [Accepted: 07/21/2015] [Indexed: 11/16/2022]
Abstract
3D printing is a promising method for the fabrication of scaffolds in the field of bone tissue engineering. To date, the mechanical strength of 3D printed ceramic scaffolds is not sufficient for a variety of applications in the reconstructive surgery. Mechanical strength is directly in relation with the porosity of the 3D printed scaffolds. The porosity is directly influenced by particle size and particle-size distribution of the raw material. To investigate this impact, a hydroxyapatite granule blend with a wide particle size distribution was fractioned by sieving. The specific fractions and bimodal mixtures of the sieved granule blend were used to 3D print specimens. It has been shown that an optimized arrangement of fractions with large and small particles can provide 3D printed specimens with good mechanical strength due to a higher packing density. An increase of mechanical strength can possibly expand the application area of 3D printed hydroxyapatite scaffolds.
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Affiliation(s)
- Sebastian Spath
- Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany.
| | - Philipp Drescher
- Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany.
| | - Hermann Seitz
- Faculty of Mechanical Engineering and Marine Technology, University of Rostock, Justus-von-Liebig Weg 6, 18059 Rostock, Germany.
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90
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Tablet mechanics depend on nano and micro scale adhesion, lubrication and structure. Int J Pharm 2015; 486:315-23. [DOI: 10.1016/j.ijpharm.2015.03.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Revised: 03/20/2015] [Accepted: 03/21/2015] [Indexed: 01/19/2023]
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91
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Suksuwan A, Lomlim L, Dickert FL, Suedee R. Tracking the chemical surface properties of racemic thalidomide and its enantiomers using a biomimetic functional surface on a quartz crystal microbalance. J Appl Polym Sci 2015. [DOI: 10.1002/app.42309] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Acharee Suksuwan
- Department of Pharmaceutical Chemistry; Faculty of Pharmaceutical Sciences; Molecular Recognition Materials Research Unit, NANOTEC Center of Excellence at PSU/Drug Delivery System Research Center, Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
| | - Luelak Lomlim
- Department of Pharmaceutical Chemistry; Faculty of Pharmaceutical Sciences; Molecular Recognition Materials Research Unit, NANOTEC Center of Excellence at PSU/Drug Delivery System Research Center, Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
| | - Franz L. Dickert
- Department of Analytical Chemistry; University of Vienna; Währingerstrasse 38 A-1090 Vienna Austria
| | - Roongnapa Suedee
- Department of Pharmaceutical Chemistry; Faculty of Pharmaceutical Sciences; Molecular Recognition Materials Research Unit, NANOTEC Center of Excellence at PSU/Drug Delivery System Research Center, Prince of Songkla University; Hat Yai Songkhla 90112 Thailand
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92
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Hao T. Analogous viscosity equations of granular powders based on Eyring's rate process theory and free volume concept. RSC Adv 2015. [DOI: 10.1039/c5ra16706j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Granular powders can be successfully treated with kinetic theory and statistical mechanics, though the granular powders are athermal systems and the conventional environmental temperature is too weak to drive particles to move.
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Affiliation(s)
- Tian Hao
- Nutrilite Health Institute
- Buena Park
- USA
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93
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Hao T. Understanding empirical powder flowability criteria scaled by Hausner ratio or Carr index with the analogous viscosity concept. RSC Adv 2015. [DOI: 10.1039/c5ra07197f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The viscosity concept is introduced to granular powders after the analogous granular temperature is defined, and the viscosity equations are derived with the Eyring's rate process theory and free volume concept.
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Affiliation(s)
- Tian Hao
- Nutrilite Health Institute
- Buena Park
- USA
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94
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Physicochemical behavior of pharmaceutical particles and distribution of additives in tablets due to process shear and lubricant composition. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.07.049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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95
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Ramachandran V, Murnane D, Hammond RB, Pickering J, Roberts KJ, Soufian M, Forbes B, Jaffari S, Martin GP, Collins E, Pencheva K. Formulation Pre-screening of Inhalation Powders Using Computational Atom–Atom Systematic Search Method. Mol Pharm 2014; 12:18-33. [DOI: 10.1021/mp500335w] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vasuki Ramachandran
- Institute
of Particle Science and Engineering, Institute of Process Research
and Development, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, U.K
| | - Darragh Murnane
- School
of Life and Medical Sciences, University of Hertfordshire, Hertfordshire AL10 9AB, U.K
| | - Robert B. Hammond
- Institute
of Particle Science and Engineering, Institute of Process Research
and Development, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, U.K
| | - Jonathan Pickering
- Institute
of Particle Science and Engineering, Institute of Process Research
and Development, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, U.K
| | - Kevin J. Roberts
- Institute
of Particle Science and Engineering, Institute of Process Research
and Development, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, U.K
| | - Majeed Soufian
- Institute
of Particle Science and Engineering, Institute of Process Research
and Development, School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, U.K
| | - Ben Forbes
- Institute
of Pharmaceutical Sciences, King’s College, London SE1 9NH, U.K
| | - Sara Jaffari
- Institute
of Pharmaceutical Sciences, King’s College, London SE1 9NH, U.K
| | - Gary P. Martin
- Institute
of Pharmaceutical Sciences, King’s College, London SE1 9NH, U.K
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96
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Chang YX, Yang JJ, Pan RL, Chang Q, Liao YH. Anti-hygroscopic effect of leucine on spray-dried herbal extract powders. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.06.058] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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97
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Zhou Z, Buchanan F, Mitchell C, Dunne N. Printability of calcium phosphate: Calcium sulfate powders for the application of tissue engineered bone scaffolds using the 3D printing technique. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 38:1-10. [DOI: 10.1016/j.msec.2014.01.027] [Citation(s) in RCA: 133] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 12/17/2013] [Accepted: 01/13/2014] [Indexed: 10/25/2022]
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98
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Qu L, Zhou Q(T, Gengenbach T, Denman JA, Stewart PJ, Hapgood KP, Gamlen M, Morton DAV. Investigation of the potential for direct compaction of a fine ibuprofen powder dry-coated with magnesium stearate. Drug Dev Ind Pharm 2014; 41:825-37. [DOI: 10.3109/03639045.2014.908901] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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99
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Choi DH, Lim DG, Son HM, Jeong SH. Comprehensive evaluation of layer separation tendency of novel three-layered tablets with geometric and mechanical properties. Int J Pharm 2014; 465:347-59. [DOI: 10.1016/j.ijpharm.2014.02.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 12/18/2013] [Accepted: 02/08/2014] [Indexed: 11/25/2022]
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100
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