1
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Zheng AY, Liau YW, Heng PWS, Chan LW. Elucidating the effect of salt incorporation in tablets on tablet disintegratability. Int J Pharm 2024; 651:123759. [PMID: 38163527 DOI: 10.1016/j.ijpharm.2023.123759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/13/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
The disintegration of tablets plays a crucial role in facilitating drug release, and disintegrants are used in tablet formulations to promote the disintegration process. This study aimed to explore and understand the impact of salt incorporation on tablet disintegratability. The study was designed to modulate the microenvironment temperature of tablets through dissolution of salts incorporated in the formulation, with the aim to facilitate tablet disintegration. It was observed that the incorporation of salts generally prolonged tablet disintegration. The impact of incorporating salts on tablet properties was both concentration-dependent and multi-factorial. The observed effect of salts on tablet disintegration was likely influenced by a combination of factors, including different properties of the salts, enhanced solubility of components, the temperature difference between the tablet and the disintegration medium, the expansion of air resulting from increased microenvironment temperature, and the competition for water between salts and disintegrants. These factors collectively contributed to the overall impact of salts on tablet disintegration.
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Affiliation(s)
- Audrey Yi Zheng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Yuan Wei Liau
- 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
| | - Lai Wah Chan
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
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2
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Veronica N, Heng PWS, Liew CV. Relative Humidity Cycling: Implications on the Stability of Moisture-Sensitive Drugs in Solid Pharmaceutical Products. Mol Pharm 2023; 20:1072-1085. [PMID: 36480246 DOI: 10.1021/acs.molpharmaceut.2c00812] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The stability of a moisture-sensitive drug in tablet formulations depends particularly on the environment's relative humidity (RH) and the products' prior exposure to moisture. This study was designed to understand drug stability in relation to the moisture interaction of the excipients, moisture history of the tablets, and RH of the environment. The stability study was performed on tablets containing acetylsalicylic acid (ASA), formulated with common pharmaceutical excipients like native maize starch, microcrystalline cellulose (MCC), partially pregelatinized maize starch (PGS), dicalcium phosphate dihydrate (DCP), lactose, and mannitol. The tablets were subjected to storage conditions with RH cycling alternating between 53% and 75%. Results were also compared to tablets stored at a constant RH of 53% or 75%. The excipients demonstrated marked differences in their interactions with moisture. They could be broadly grouped as excipients with RH-dependent moisture content (native maize starch, MCC, and PGS) and RH-independent moisture content (DCP, lactose, and mannitol). As each excipient interacted differently with moisture, degradation of ASA in the tablets depended on the excipients' ability to modulate the moisture availability for degradation. The lowest ASA degradation was observed in tablets formulated with low moisture content water-soluble excipients, such as lactose and mannitol. The impact of RH cycling on ASA stability was apparent in tablets containing native maize starch, MCC, PGS, or DCP. These findings suggested that the choice of excipients influences the effect of moisture history on drug stability. The results from studies investigating moisture interaction of excipients and drug stability are valuable to understanding the inter-relationship between excipients, moisture history, and drug stability.
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Affiliation(s)
- Natalia Veronica
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore117543, Singapore
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore117543, Singapore
| | - Celine Valeria Liew
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500 Subang Jaya, Selangor, Malaysia
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3
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Dhondale MR, Thakor P, Nambiar AG, Singh M, Agrawal AK, Shastri NR, Kumar D. Co-Crystallization Approach to Enhance the Stability of Moisture-Sensitive Drugs. Pharmaceutics 2023; 15:pharmaceutics15010189. [PMID: 36678819 PMCID: PMC9864382 DOI: 10.3390/pharmaceutics15010189] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/07/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Stability is an essential quality attribute of any pharmaceutical formulation. Poor stability can change the color and physical appearance of a drug, directly impacting the patient's perception. Unstable drug products may also face loss of active pharmaceutical ingredients (APIs) and degradation, making the medicine ineffective and toxic. Moisture content is known to be the leading cause of the degradation of nearly 50% of medicinal products, leading to impurities in solid dose formulations. The polarity of the atoms in an API and the surface chemistry of API particles majorly influence the affinity towards water molecules. Moisture induces chemical reactions, including free water that has also been identified as an important factor in determining drug product stability. Among the various approaches, crystal engineering and specifically co-crystals, have a proven ability to increase the stability of moisture-sensitive APIs. Other approaches, such as changing the salt form, can lead to solubility issues, thus making the co-crystal approach more suited to enhancing hygroscopic stability. There are many reported studies where co-crystals have exhibited reduced hygroscopicity compared to pure API, thereby improving the product's stability. In this review, the authors focus on recent updates and trends in these studies related to improving the hygroscopic stability of compounds, discuss the reasons behind the enhanced stability, and briefly discuss the screening of co-formers for moisture-sensitive drugs.
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Affiliation(s)
- Madhukiran R. Dhondale
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Pradip Thakor
- Natco Research Center, Natco Pharma Limited, Hyderabad 500018, India
| | - Amritha G. Nambiar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Maan Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Ashish K. Agrawal
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
| | | | - Dinesh Kumar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi 221005, India
- Correspondence:
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4
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Sanchez-Ballester NM, Trens P, Rossi JC, Soulairol I. Alginate ester: New moisture-scavenging excipients for direct compressible pharmaceutical tableting. Carbohydr Polym 2022; 297:120063. [DOI: 10.1016/j.carbpol.2022.120063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 11/02/2022]
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5
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Veronica N, Heng PWS, Liew CV. Ensuring Product Stability – Choosing the Right Excipients. J Pharm Sci 2022; 111:2158-2171. [DOI: 10.1016/j.xphs.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 05/02/2022] [Accepted: 05/02/2022] [Indexed: 10/18/2022]
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6
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Veronica N, Liew CV, Heng PWS. Impact of Amylose-Amylopectin Ratio of Starches on the Mechanical Strength and Stability of Acetylsalicylic Acid Tablets. AAPS PharmSciTech 2022; 23:118. [PMID: 35445277 DOI: 10.1208/s12249-022-02266-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/23/2022] [Indexed: 11/30/2022] Open
Abstract
The two main components of starch - amylose and amylopectin, are responsible for its interaction with moisture. This study investigated how moisture sorption properties of the starches with different amylose-amylopectin ratio impacted tablet properties including drug stability. The starch samples were equilibrated to 33, 53, and 75% relative humidity (RH) and then assessed for tabletability, compactibility, and yield pressure. Effect of humidity on viscoelastic recovery was also evaluated. Tabletability and compactibility of high-amylose starch were better than that of high-amylopectin starch at 33 and 53% RH. However, at 75% RH, the reverse was observed. In terms of yield pressure, high-amylose starch had lower yield pressure than high-amylopectin starch. High-amylose starch tablets also exhibited lower extent of viscoelastic recovery than high-amylopectin starch tablets. The variations in the tableting properties were found to be related to relative locality of the sorbed moisture. Degradation of acetylsalicylic acid in high-amylose starch tablets at 75% RH, 40°C was less than the tablets with high-amylopectin starch. This observation could be attributed to the greater amount of water molecules binding sites in high-amylose starch. Furthermore, most of the sorbed moisture of high-amylose starch was internally absorbed moisture, therefore limiting the availability of diffusible sorbed moisture for degradation reaction. Findings from this study could provide better insights on the influence of amylose-amylopectin ratio on tableting properties and stability of moisture-sensitive drugs. This is of particular importance as starch is a common excipient in solid dosage forms.
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7
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Yáñez-Fernández J, Herrera Ovando MG, Patlán Ramírez L, Ramírez-Sotelo G, Guarin CA, Castro-Rodríguez DC. Factorial Design to Optimize Dextran Production by the Native Strain Leuconostoc mesenteroides SF3. ACS OMEGA 2021; 6:31203-31210. [PMID: 34841163 PMCID: PMC8613848 DOI: 10.1021/acsomega.1c04856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Dextran is an extracellular bacterial polysaccharide for which industrial applications have been found in different areas. Several researchers have optimized the fermentation conditions to maximize dextran production. This study aimed to characterize the dextran of Leuconostoc mesenteroides SF3, which was isolated from the aguamiel of Agave salmiana. To maximize the yield of dextran, the effects of sucrose concentration, temperature, and incubation time were studied. The experiments were conducted using a factorial design and a response surface methodology. L. mesenteroides SF3 produced a maximum yield of dextran (23.8 g/L ± 4) after 16 h of incubation at 25 °C with 10% sucrose. The functional properties such as water absorption capacity, oil absorption capacity, and emulsion activity of this unique dextran were 361.8% ± 3.1, 212.0% ± 6.7, and 58.3% ± 0.7, respectively. These properties indicate that the dextran produced by L. mesenteroides SF3 is a high-quality polysaccharide with potential applications in the food industry, and the optimized conditions for its production could be used for the commercial production of this dextran, which have significant industrial perspectives.
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Affiliation(s)
- Jorge Yáñez-Fernández
- Unidad
profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Mexico City 07340, Mexico
| | - Mirna Griselda Herrera Ovando
- Unidad
profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Mexico City 07340, Mexico
| | - Larissa Patlán Ramírez
- Unidad
profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Mexico City 07340, Mexico
| | - Guadalupe Ramírez-Sotelo
- Unidad
profesional Interdisciplinaria de Biotecnología (UPIBI), Instituto Politécnico Nacional (IPN), Mexico City 07340, Mexico
| | - Cesar A. Guarin
- Universidad
Autónoma Metropolitana-Iztapalapa, Mexico City 09340, Mexico
| | - Diana C. Castro-Rodríguez
- CONACyT-Cátedras,
Reproductive Biology Department, Instituto
Nacional de Ciencias Médicas y Nutrición SZ, Mexico City 14080, Mexico
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8
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Chakravarty P, Nagapudi K. The importance of water-solid interactions in small molecule drug development: An industry perspective. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Kaur N, Suryanarayanan R. Investigating the Influence of Excipients on the Stability of Levothyroxine Sodium Pentahydrate. Mol Pharm 2021; 18:2683-2693. [PMID: 34061524 DOI: 10.1021/acs.molpharmaceut.1c00217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A range of tablet excipients were evaluated for their influence on the physical form and chemical stability of levothyroxine sodium pentahydrate (LSP; C15H10I4NNaO4·5H2O). LSP-excipient binary powder blends were stored under two conditions: (a) in hermetically sealed containers at 40 °C and (b) at 40 °C/75% RH. By use of synchrotron X-ray diffractometry, the disappearance of LSP could be quantified and the appearance of crystalline levothyroxine (free acid) could be identified. Under hermetically sealed conditions (40 °C) hygroscopic excipients such as povidone induced partial dehydration of LSP to form levothyroxine sodium monohydrate. When stored at 40 °C/75% RH, acidic excipients induced measurable disproportionation of LSP resulting in the formation of levothyroxine (free acid). HPLC analyses of drug-excipient mixtures revealed that lactose monohydrate, microcrystalline cellulose, and croscarmellose sodium caused pronounced chemical decomposition of LSP. On the other hand, magnesium stearate, sodium stearyl fumarate, and alkaline pH modifiers did not affect the physical and chemical stability of the API following storage at 40 °C/75% RH. HPLC, being a solution based technique, revealed chemical decomposition of the API, but the technique was insensitive to physical transformations. Excipient properties such as hygroscopicity and microenvironmental acidity were identified to be critical determinants of both physical and chemical stability of LSP in a drug product. For drugs exhibiting both physical and chemical transformations, simultaneous solid-state and solution based analyses will enable comprehensive stability evaluation.
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Affiliation(s)
- Navpreet Kaur
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Raj Suryanarayanan
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota-Twin Cities, Minneapolis, Minnesota 55455, United States
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10
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Terrazas-Valencia F, Díaz-Ramírez M, Salgado-Cruz MDLP, Méndez-Méndez JV, Toledo-Madrid KI, Calderón-Domínguez G. A water adsorption study on wheat pericarp macrofibrils using atomic force microscopy. Micron 2021; 143:103010. [PMID: 33485096 DOI: 10.1016/j.micron.2021.103010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/27/2020] [Accepted: 12/30/2020] [Indexed: 10/22/2022]
Abstract
Wheat pericarp, which is the most external layer of the wheat kernel, is composed of a polysaccharide matrix, where cellulose macrofibrils, hemicellulose, and lignin are their main components. These polysaccharides modified their structure due to the hydric condition to which they are subjected. This effect is considered as an advantage in the wheat milling process. However, no information about micro and nanostructural changes on wheat pericarp macrofibrils due to their hydric condition, studied by the AFM technique and image analysis, has been reported. On the other hand, cellulose macrofibrils have been extensively studied by AFM but performing the study at constant relative humidity (RH) level. Hence, this study aimed to investigate the water adsorption process on wheat pericarp macrofibrils using AFM and control the RH to which samples were subjected during examinations with a lab equipment specially developed for the AFM experiment. The RH was modified from 10 to 90 %, and peak force error images were acquired, from which macrofibrils' diameter, swelling behavior, and water adsorption isotherms were calculated, using image analysis tools. Also, as an application from the water adsorption isotherms, the specific surface area and the hygroscopic swelling coefficients were determined. Results showed that wheat pericarp macrofibrils presented an unusual swelling behavior, with the most notorious changes after reaching a moisture content in equilibrium to 40 % of RH. The average diameter of the macro-fibrils varied from 45 to 48 nm. The water vapor adsorption isotherm obtained from AFM micrographs image analysis did not resemble the sigmoidal IUPAC Type II, generally obtained by applying gravimetric methods. Results suggest that the macrofibrils swelling controls water accessibility to the internal macrofibrils structures. It was proved with this study the feasibility of using AFM and image analysis to build water vapor isotherms and other mass transport parameters based on the macrofibrils swelling.
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Affiliation(s)
- Francisco Terrazas-Valencia
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Zacatenco, Av. Wilfrido Massieu 399, Col. Nueva Industrial Vallejo, Alcaldía, Gustavo A. Madero C.P. 07738, Ciudad de México, Mexico.
| | - Mayra Díaz-Ramírez
- Departamento de Ciencias de la Alimentación, Universidad Autónoma Metropolitana - Unidad Lerma, Av. de las Garzas No. 10, Col. El Panteón Lerma de Villada, Municipio de Lerma C.P. 52005, Estado de México, Mexico
| | - Ma de la Paz Salgado-Cruz
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Zacatenco, Av. Wilfrido Massieu 399, Col. Nueva Industrial Vallejo, Alcaldía, Gustavo A. Madero C.P. 07738, Ciudad de México, Mexico; Consejo Nacional de Ciencia y Tecnología (CONACYT), Av. Insurgentes Sur 1582, Col. Crédito Constructor, Alcaldía Benito Juárez C.P. 03940, Ciudad de México, Mexico
| | - Juan Vicente Méndez-Méndez
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional, Av. Luis Enrique Erro s/n, Col. Nueva Industrial Vallejo, Alcaldía Gustavo A. Madero C.P. 07738, Ciudad de México, Mexico
| | - Keren Ileana Toledo-Madrid
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Zacatenco, Av. Wilfrido Massieu 399, Col. Nueva Industrial Vallejo, Alcaldía, Gustavo A. Madero C.P. 07738, Ciudad de México, Mexico
| | - Georgina Calderón-Domínguez
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Zacatenco, Av. Wilfrido Massieu 399, Col. Nueva Industrial Vallejo, Alcaldía, Gustavo A. Madero C.P. 07738, Ciudad de México, Mexico.
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11
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Veronica N, Hiew TN, Liew CV, Heng PWS. Insights into the Moisture Scavenging Properties of Different Types of Starch in Tablets Containing a Moisture-Sensitive Drug. Mol Pharm 2020; 17:4616-4628. [PMID: 33155806 DOI: 10.1021/acs.molpharmaceut.0c00804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Starch is a commonly used excipient in the pharmaceutical industry. However, information on the effect of the moisture scavenging properties of starch to protect moisture-sensitive drugs is limited. The interaction between starch and moisture is of particular interest as moisture fugacity can impact drug stability. In this study, the moisture behavior of different starches was examined for an understanding of its role in the degradation of acetylsalicylic acid. The starches were characterized for their dimensional- and moisture-related properties. Stability testing was carried out on tablets containing acetylsalicylic acid and different starches. Although moisture sorption processes were visually comparable for the different starches, quantitative differences were found in their moisture interaction and distribution. From the sorption isotherms, moisture monolayer coverage and area of hysteresis were found to correlate well with the percentage of acetylsalicylic acid degradation. The lowest percentage of acetylsalicylic acid degradation was observed in starch that exhibited high monolayer coverage, large area of hysteresis, and good capacity for internally absorbed moisture. Findings from this study highlighted the value of moisture scavenging excipients when formulating moisture-sensitive drug products. Clearly, the assessment of moisture sorption properties of excipients during the preformulation phase can be an invaluable exercise for identifying the best possible ingredients in formulations where moisture sensitivity is an area of concern.
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Affiliation(s)
- Natalia Veronica
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Tze Ning Hiew
- 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
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
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12
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Pinto JT, Wutscher T, Stankovic-Brandl M, Zellnitz S, Biserni S, Mercandelli A, Kobler M, Buttini F, Andrade L, Daza V, Ecenarro S, Canalejas L, Paudel A. Evaluation of the Physico-mechanical Properties and Electrostatic Charging Behavior of Different Capsule Types for Inhalation Under Distinct Environmental Conditions. AAPS PharmSciTech 2020; 21:128. [PMID: 32399597 PMCID: PMC7217808 DOI: 10.1208/s12249-020-01676-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/04/2020] [Indexed: 02/07/2023] Open
Abstract
Capsule-based dry powder inhaler (DPI) products can be influenced by a multitude of interacting factors, including electrostatic charging. Tribo-charging is a process of charge transfer impacted by various factors, i.e., material surface characteristics, mechanical properties, processing parameters and environmental conditions. Consequently, this work aimed to assess how the charging behavior of capsules intended for inhalation might be influenced by environmental conditions. Capsules having different chemical compositions (gelatin and hydroxypropyl methylcellulose (HPMC)) and distinct inherent characteristics from manufacturing (thermally and cold-gelled) were exposed to various environmental conditions (11%, 22% and 51% RH). Their resulting properties were characterized and tribo-charging behavior was measured against stainless steel and PVC. It was observed that all capsule materials tended to charge to a higher extent when in contact with PVC. The tribo-charging of the thermally gelled HPMC capsules (Vcaps® Plus) was more similar to the gelatin capsules (Quali-G™-I) than to their HPMC cold-gelled counterparts (Quali-V®-I). The sorption of water by the capsules at different relative humidities notably impacted their properties and tribo-charging behavior. Different interactions between the tested materials and water molecules were identified and are proposed to be the driver of distinct charging behaviors. Finally, we showed that depending on the capsule types, distinct environmental conditions are necessary to mitigate charging and assure optimal behavior of the capsules.
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13
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Veronica N, Liew CV, Heng PWS. Insights on the role of excipients and tablet matrix porosity on aspirin stability. Int J Pharm 2020; 580:119218. [PMID: 32165224 DOI: 10.1016/j.ijpharm.2020.119218] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/05/2020] [Accepted: 03/08/2020] [Indexed: 11/28/2022]
Abstract
Excipient-moisture interaction can be a critical attribute in determination of product stability. This study aimed to investigate influence of integrating excipients having different moisture interaction into moisture sensitive drug formulations. Aspirin was formulated with maize starch (MS), microcrystalline cellulose (MCC) and calcium hydrogen phosphate dihydrate (DCP). The excipients were evaluated for their inherent moisture content and water activity. Tablets fabricated at different compression pressures were exposed to 40 °C, 75% relative humidity for a stipulated period before analyzing for aspirin degradation. The results revealed that while MS had higher moisture content, the water activity was relatively low. Consequently, MS tablets had lower aspirin degradation than MCC and DCP tablets. In contrast, high water activity of DCP resulted in greater aspirin degradation. This was despite the low moisture content of DCP. Influence of tablet porosity on aspirin degradation was minimal. This illustrated the fugacity of moisture, possessing high thermodynamic activity and physical spatial delimitation would not suppress its distribution. The findings suggested that excipients possessing high water retentive capacity could potentially be useful as internal tablet desiccants by acting as a moisture scavenger. This study also highlights the importance of water activity in preformulation studies related to the choice of excipients.
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Affiliation(s)
- Natalia Veronica
- 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
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore.
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14
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Zhou S, Nyholm L, Strømme M, Wang Z. Cladophora Cellulose: Unique Biopolymer Nanofibrils for Emerging Energy, Environmental, and Life Science Applications. Acc Chem Res 2019; 52:2232-2243. [PMID: 31290643 DOI: 10.1021/acs.accounts.9b00215] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Because of its natural abundance, hierarchical fibrous structure, mechanical flexibility, potential for chemical modification, biocompatibility, renewability, and abundance, cellulose is one of the most promising green materials for a bio-based future and sustainable economy. Cellulose derived from wood or bacteria has dominated the industrial cellulose market and has been developed to produce a number of advanced materials for applications in energy storage, environmental, and biotechnology areas. However, Cladophora cellulose (CC) extracted from green algae has unprecedented advantages over those celluloses because of its high crystallinity (>95%), low moisture adsorption capacity, excellent solution processability, high porosity in the mesoporous range, and associated high specific surface area. The unique physical and chemical properties of CC can add new features to and enhance the performance of nanocellulose-based materials, and these attributes have attracted a great deal of research interest over the past decade. This Account summarizes our recent research on the preparation, characterization, functionalization, and versatile applications of CC. Our aim is to provide a comprehensive overview of the uniqueness of CC with respect to material structure, properties, and emerging applications. We discuss the potential of CC in energy storage, environmental science, and life science, with emphasis on applications in which its properties are superior to those of other nanocellulose forms. Specifically, we discuss the production of the first-ever paper battery based on CC. This battery has initiated a rising interest in the development of sustainable paper-based energy storage devices, where cellulose is used as a combined building block and binder for paper electrodes of various types in combination with carbon, conducting polymers, and other electroactive materials. High-active-mass and high-mass-loading paper electrodes can be made in which the CC acts as a high-surface-area and porous substrate while a thin layer of electroactive material is coated on individual nanofibrils. We have shown that CC membranes can be used directly as battery separators because of their low moisture content, high mesoporosity, high thermal stability, and good electrolyte wettability. The safety, stability, and capacity of lithium-ion batteries can be enhanced simply by using CC-based separators. Moreover, the high chemical modifiability and adjustable porosity of dried CC papers allow them to be used as advanced membranes for environmental science (water and air purification, pollutant adsorption) and life science (virus isolation, protein recovery, hemodialysis, DNA extraction, bioactive substrates). Finally, we outline some concluding perspectives on the challenges and future directions of CC research with the aim to open up yet unexplored fields of use for this interesting material.
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Affiliation(s)
- Shengyang Zhou
- Nanotechnology and Functional Materials, Department of Engineering Sciences, The Ångström Laboratory, Uppsala University, Box 534, Uppsala 751 21, Sweden
| | - Leif Nyholm
- Department of Chemistry-Ångström, Uppsala University, Box 538, Uppsala 751 21, Sweden
| | - Maria Strømme
- Nanotechnology and Functional Materials, Department of Engineering Sciences, The Ångström Laboratory, Uppsala University, Box 534, Uppsala 751 21, Sweden
| | - Zhaohui Wang
- Department of Chemistry-Ångström, Uppsala University, Box 538, Uppsala 751 21, Sweden
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Ghijs M, Schäfer E, Kumar A, Cappuyns P, Van Assche I, De Leersnyder F, Vanhoorne V, De Beer T, Nopens I. Modeling of Semicontinuous Fluid Bed Drying of Pharmaceutical Granules With Respect to Granule Size. J Pharm Sci 2019; 108:2094-2101. [DOI: 10.1016/j.xphs.2019.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Revised: 12/06/2018] [Accepted: 01/11/2019] [Indexed: 11/26/2022]
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16
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Azab SM. A comprehensive structural comparison between cellulose and starch polymers functionalized cobalt nanoparticles sensors for the nanomolar detection of paracetamol. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.04.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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17
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Effect of processing conditions and excipients on dehydration kinetics of sodium naproxen hydrate in formulation. Int J Pharm 2019; 557:221-228. [DOI: 10.1016/j.ijpharm.2018.12.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 12/17/2018] [Accepted: 12/21/2018] [Indexed: 02/01/2023]
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18
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Mamleeva NA, Kustov AL, Lunin VV. Formation of the Oxidation Products in the Ozonation of Wood with Different Moisture Contents. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418090182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Entangled and colloidally stable microcrystalline cellulose matrices in controlled drug release. Int J Pharm 2018; 548:113-119. [PMID: 29920312 DOI: 10.1016/j.ijpharm.2018.06.022] [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: 04/17/2018] [Revised: 06/07/2018] [Accepted: 06/07/2018] [Indexed: 11/22/2022]
Abstract
Drug release from a new type of matrix material consisting of partially fibrillated microcrystalline cellulose was investigated. A mechanical treatment of novel AaltoCell™ cellulose microcrystals caused partial opening of the nanofibrillary structure of the cellulose particles and entanglement of individual particles led into formation of an elastic network of microcrystalline cellulose. The rheological properties of the stable hydrogel-like materials were characterised by shear rheometry. Model compounds metronidazole and lysozyme were successfully employed in drug release experiments carried out by delignified (bleached) and lignin-containing matrices. The viscosity as well as the lignin-content played a role in the release dynamics of the drugs. Microcrystalline AaltoCell™ was proven as high-performing material for diffusion controlled release of the chosen model compounds and can be seen as a safe and economical alternative for novel matrix materials such as nanocellulose or cellulose derivatives.
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Darji MA, Lalge RM, Marathe SP, Mulay TD, Fatima T, Alshammari A, Lee HK, Repka MA, Narasimha Murthy S. Excipient Stability in Oral Solid Dosage Forms: A Review. AAPS PharmSciTech 2018; 19:12-26. [PMID: 28895106 DOI: 10.1208/s12249-017-0864-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/21/2017] [Indexed: 01/12/2023] Open
Abstract
The choice of excipients constitutes a major part of preformulation and formulation studies during the preparation of pharmaceutical dosage forms. The physical, mechanical, and chemical properties of excipients affect various formulation parameters, such as disintegration, dissolution, and shelf life, and significantly influence the final product. Therefore, several studies have been performed to evaluate the effect of drug-excipient interactions on the overall formulation. This article reviews the information available on the physical and chemical instabilities of excipients and their incompatibilities with the active pharmaceutical ingredient in solid oral dosage forms, during various drug-manufacturing processes. The impact of these interactions on the drug formulation process has been discussed in detail. Examples of various excipients used in solid oral dosage forms have been included to elaborate on different drug-excipient interactions.
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21
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Hautala J, Kääriäinen T, Hoppu P, Kemell M, Heinämäki J, Cameron D, George S, Juppo AM. Atomic layer deposition-A novel method for the ultrathin coating of minitablets. Int J Pharm 2017; 531:47-58. [PMID: 28802795 DOI: 10.1016/j.ijpharm.2017.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 07/29/2017] [Accepted: 08/01/2017] [Indexed: 10/19/2022]
Abstract
We introduce atomic layer deposition (ALD) as a novel method for the ultrathin coating (nanolayering) of minitablets. The effects of ALD coating on the tablet characteristics and taste masking were investigated and compared with the established coating method. Minitablets containing bitter tasting denatonium benzoate were coated by ALD using three different TiO2 nanolayer thicknesses (number of deposition cycles). The established coating of minitablets was performed in a laboratory-scale fluidized-bed apparatus using four concentration levels of aqueous Eudragit® E coating polymer. The coated minitablets were studied with respect to the surface morphology, taste masking capacity, in vitro disintegration and dissolution, mechanical properties, and uniformity of content. The ALD thin coating resulted in minimal increase in the dimensions and weight of minitablets in comparison to original tablet cores. Surprisingly, ALD coating with TiO2 nanolayers decreased the mechanical strength, and accelerated the in vitro disintegration of minitablets. Unlike previous studies, the studied levels of TiO2 nanolayers on tablets were also inadequate for effective taste masking. In summary, ALD permits a simple and rapid method for the ultrathin coating (nanolayering) of minitablets, and provides nanoscale-range TiO2 coatings on porous minitablets. More research, however, is needed to clarify its potential in tablet taste masking applications.
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Affiliation(s)
- Jaana Hautala
- Industrial Pharmacy, Faculty of Pharmacy, University of Helsinki, P.O. Box 56 (Viikinkaari 5E, Biocenter 2), FI-00014, Finland.
| | - Tommi Kääriäinen
- Department of Chemistry and Biochemistry, Faculty of Chemistry and Biochemistry, University of Colorado Boulder, 596 UCB, Boulder, CO 80309, USA; NovaldMedical Ltd Oy, Telkäntie 5, FI-82500 Kitee, Finland; Department of Chemistry, Faculty of Science, University of Helsinki, P.O. Box 55 (A. I. Virtasen aukio 1), FI-00014, Finland
| | - Pekka Hoppu
- NovaldMedical Ltd Oy, Telkäntie 5, FI-82500 Kitee, Finland
| | - Marianna Kemell
- Department of Chemistry, Faculty of Science, University of Helsinki, P.O. Box 55 (A. I. Virtasen aukio 1), FI-00014, Finland
| | - Jyrki Heinämäki
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, Nooruse 1, EE-50411 Tartu, Estonia
| | - David Cameron
- Ceplant, Masaryk University, Kotlářská 267/2, CZ-61137 Brno, Czech Republic
| | - Steven George
- Department of Chemistry and Biochemistry, Faculty of Chemistry and Biochemistry, University of Colorado Boulder, 596 UCB, Boulder, CO 80309, USA
| | - Anne Mari Juppo
- Industrial Pharmacy, Faculty of Pharmacy, University of Helsinki, P.O. Box 56 (Viikinkaari 5E, Biocenter 2), FI-00014, Finland
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Shrestha S, Diaz JA, Ghanbari S, Youngblood JP. Hygroscopic Swelling Determination of Cellulose Nanocrystal (CNC) Films by Polarized Light Microscopy Digital Image Correlation. Biomacromolecules 2017; 18:1482-1490. [PMID: 28365982 DOI: 10.1021/acs.biomac.7b00026] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shikha Shrestha
- School of Materials Engineering, Purdue University, 701 West
Stadium Avenue, West Lafayette, Indiana 47907, Unites States
| | - Jairo A. Diaz
- School of Materials Engineering, Purdue University, 701 West
Stadium Avenue, West Lafayette, Indiana 47907, Unites States
| | - Siavash Ghanbari
- School of Materials Engineering, Purdue University, 701 West
Stadium Avenue, West Lafayette, Indiana 47907, Unites States
| | - Jeffrey P. Youngblood
- School of Materials Engineering, Purdue University, 701 West
Stadium Avenue, West Lafayette, Indiana 47907, Unites States
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23
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Mamleeva NA, Lunin VV. Physicochemical patterns of ozone absorption by wood. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416110170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Klinzing GR, Zavaliangos A. A Simplified Model of Moisture Transport in Hydrophilic Porous Media With Applications to Pharmaceutical Tablets. J Pharm Sci 2016; 105:2410-8. [PMID: 27381910 DOI: 10.1016/j.xphs.2016.05.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/19/2016] [Accepted: 05/27/2016] [Indexed: 11/28/2022]
Abstract
This work establishes a predictive model that explicitly recognizes microstructural parameters in the description of the overall mass uptake and local gradients of moisture into tablets. Model equations were formulated based on local tablet geometry to describe the transient uptake of moisture. An analytical solution to a simplified set of model equations was solved to predict the overall mass uptake and moisture gradients with the tablets. The analytical solution takes into account individual diffusion mechanisms in different scales of porosity and diffusion into the solid phase. The time constant of mass uptake was found to be a function of several key material properties, such as tablet relative density, pore tortuosity, and equilibrium moisture content of the material. The predictions of the model are in excellent agreement with experimental results for microcrystalline cellulose tablets without the need for parameter fitting. The model presented provides a new method to analyze the transient uptake of moisture into hydrophilic materials with the knowledge of only a few fundamental material and microstructural parameters. In addition, the model allows for quick and insightful predictions of moisture diffusion for a variety of practical applications including pharmaceutical tablets, porous polymer systems, or cementitious materials.
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Affiliation(s)
- Gerard R Klinzing
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104
| | - Antonios Zavaliangos
- Department of Materials Science and Engineering, Drexel University, Philadelphia, Pennsylvania 19104.
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25
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Mistry P, Chakravarty P, Lubach JW. Probing the Distribution of Water in a Multi-Component System by Solid-State NMR Spectroscopy. Pharm Res 2016; 33:2470-80. [PMID: 27324960 DOI: 10.1007/s11095-016-1972-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/13/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE To characterize the distribution of water among various components in a powder blend using solid-state NMR spectroscopy. METHODS Water sorption behavior of theophylline anhydrate and excipients was determined by dynamic vapor sorption (DVS) and Karl Fischer Titration (KFT) after storing them in humidity chambers for 1 week at room temperature (RT) and calibration curves were generated for water content vs. (1)H T 1 relaxation times. Powder blends (either with microcrystalline cellulose or lactose as diluent) were stored at different relative humidity (RH) conditions and analyzed periodically using solid-state NMR, powder X-ray diffraction, and KFT. RESULTS Anhydrous theophylline converted to the hydrate at ≥ 84% RH. Based on the calibration curves of water content vs. relaxation times, the distribution of water in the powder blends was estimated. The total water content calculated using ssNMR was in good agreement with values measured using KFT. In blends stored at 90% RH, theophylline anhydrate-to-hydrate conversion did not occur in 1 week. CONCLUSIONS The distribution of water in multi-component powder blends was successfully determined using correlation between (1)H T 1 relaxation times and total water content. Excipient water sorption inhibited hydrate formation in theophylline at 90% RH. Water distribution was affected by excipient type. The extent of water sorbed by excipients in blends was found to be different than their standalone equilibrium water content.
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Affiliation(s)
- Pinal Mistry
- Department of Pharmaceutics, University of Minnesota, Minneapolis, Minnesota, 55414, USA
| | - Paroma Chakravarty
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, Mailstop 432a, South San Francisco, California, 94080, USA
| | - Joseph W Lubach
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, Mailstop 432a, South San Francisco, California, 94080, USA.
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26
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Builders PF, Arhewoh MI. Pharmaceutical applications of native starch in conventional drug delivery. STARCH-STARKE 2016. [DOI: 10.1002/star.201500337] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Philip F. Builders
- Department of Pharmaceutical Technology and Raw Materials Development; National Institute for Pharmaceutical Research and Development; Abuja FCT Nigeria
| | - Mathew I. Arhewoh
- Department of Pharmaceutics and Pharmaceutical Technology; Faculty of Pharmacy University of Benin; Benin City Edo State Nigeria
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27
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Mwesigwa E, Basit AW. An investigation into moisture barrier film coating efficacy and its relevance to drug stability in solid dosage forms. Int J Pharm 2016; 497:70-7. [DOI: 10.1016/j.ijpharm.2015.10.068] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 10/22/2015] [Accepted: 10/28/2015] [Indexed: 11/29/2022]
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28
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Twin screw wet granulation: Effect of process and formulation variables on powder caking during production. Int J Pharm 2015; 496:571-82. [DOI: 10.1016/j.ijpharm.2015.10.069] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 10/20/2015] [Accepted: 10/28/2015] [Indexed: 11/16/2022]
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29
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Karde V, Panda S, Ghoroi C. Surface modification to improve powder bulk behavior under humid conditions. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.03.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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30
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Fine powder flow under humid environmental conditions from the perspective of surface energy. Int J Pharm 2015; 485:192-201. [DOI: 10.1016/j.ijpharm.2015.03.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 03/11/2015] [Indexed: 11/17/2022]
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31
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Casettari L, Bonacucina G, Morris GA, Perinelli DR, Lucaioli P, Cespi M, Palmieri GF. Dextran and its potential use as tablet excipient. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.12.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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32
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The crystallinity of cellulose controls the physical distribution of sorbed water and the capacity to present water for chemical degradation of a solid drug. Int J Pharm 2014; 477:326-33. [DOI: 10.1016/j.ijpharm.2014.10.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 10/06/2014] [Accepted: 10/11/2014] [Indexed: 11/19/2022]
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33
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Kim HW, Yoon HW, Yoo BM, Park JS, Gleason KL, Freeman BD, Park HB. High-performance CO2-philic graphene oxide membranes under wet-conditions. Chem Commun (Camb) 2014; 50:13563-6. [DOI: 10.1039/c4cc06207h] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Sacchetti M. Thermodynamics of Water–Solid Interactions in Crystalline and Amorphous Pharmaceutical Materials. J Pharm Sci 2014; 103:2772-2783. [DOI: 10.1002/jps.23806] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 11/13/2013] [Accepted: 11/15/2013] [Indexed: 11/08/2022]
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35
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Saripella KK, Mallipeddi R, Neau SH. Crospovidone Interactions with Water. I. Calorimetric Study of the Effect of Polyplasdone Particle Size on Its Uptake and Distribution of Water. J Pharm Sci 2014; 103:669-75. [DOI: 10.1002/jps.23846] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 11/29/2013] [Accepted: 12/16/2013] [Indexed: 11/08/2022]
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36
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Krueger C, Thommes M, Kleinebudde P. Influence of MCC II fraction and storage conditions on pellet properties. Eur J Pharm Biopharm 2013; 85:1039-45. [DOI: 10.1016/j.ejpb.2013.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/02/2013] [Accepted: 07/04/2013] [Indexed: 11/29/2022]
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37
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Agrawal AM, Dudhedia MS, Patel AD, Raikes MS. Characterization and performance assessment of solid dispersions prepared by hot melt extrusion and spray drying process. Int J Pharm 2013; 457:71-81. [PMID: 24013161 DOI: 10.1016/j.ijpharm.2013.08.081] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Revised: 08/08/2013] [Accepted: 08/28/2013] [Indexed: 11/18/2022]
Abstract
The present study investigated effect of manufacturing methods such as hot melt extrusion (HME) and spray drying (SD) on physicochemical properties, manufacturability, physical stability and product performance of solid dispersion. Solid dispersions of compound X and PVP VA64 (1:2) when prepared by SD and HME process were amorphous by polarized light microscopy, powder X-ray diffractometry, and modulated differential scanning calorimetry analyses with a single glass transition temperature. Fourier transform infrared (FT-IR) and Raman spectroscopic analyses revealed similar molecular level interactions between compound X and PVP VA64 as evident by overlapping FT-IR and FT Raman spectra in SD and HME solid dispersions. The compactibility, tabletability, disintegration and dissolution performance were similar for solid dispersions prepared by both processing techniques. Differences in material properties such as surface area, morphological structure, powder densities, and flow characteristics were observed between SD and HME solid dispersion. The SD solid dispersion was physically less stable compared to HME solid dispersion under accelerated stability conditions. Findings from this study suggest that similar product performance could be obtained if the molecular properties of the solid dispersion processed by two different techniques are similar. However differences in material properties might affect the physical stability of the solid dispersions.
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Affiliation(s)
- Anjali M Agrawal
- Boehringer Ingelheim Pharmaceuticals Inc., 900 Ridgebury Road, Ridgefield, CT 06877, United States.
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38
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Hydration and mechanical properties of arabinoxylans and β-d-glucans films. Carbohydr Polym 2013; 96:31-8. [DOI: 10.1016/j.carbpol.2013.03.090] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Revised: 03/20/2013] [Accepted: 03/26/2013] [Indexed: 01/10/2023]
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39
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Builders PF, Anwunobi PA, Mbah CC, Adikwu MU. New direct compression excipient from tigernut starch: physicochemical and functional properties. AAPS PharmSciTech 2013; 14:818-27. [PMID: 23649994 DOI: 10.1208/s12249-013-9968-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 04/09/2013] [Indexed: 11/30/2022] Open
Abstract
Tigernut starch has been isolated and modified by forced retrogradation of the acidic gel by freezing and thawing processes. Relevant physicochemical and functional properties of the new excipient (tigernut starch modified by acid gelation and accelerated (forced) retrogradation (ST(AM))) were evaluated as a direct compression excipient in relation to the native tigernut starch (ST(NA)), intermediate product (tigernut starch modified by acid gelation (ST(A))), and microcrystalline cellulose (MCC). The particle morphology, swelling capacity, moisture sorption, differential scanning calorimeter (DSC) thermographs and X-ray powder diffraction (XRD) patterns, flow, dilution capacity, and tablet disintegration efficiency were evaluated. The particles of ST(NA) were either round or oval in shape, ST(A) were smooth with thick round edges and hollowed center while ST(AM) were long, smooth, and irregularly shaped typically resembling MCC. The DSC thermographs of ST(NA) and MCC showed two endothermic transitions as compared with ST(A) and ST(AM) which showed an endothermic and an exothermic. The moisture uptake, swelling, flow, and dilution capacity of ST(AM) were higher than those of MCC, ST(A), and ST(NA). The XRD pattern and moisture sorption profile of ST(AM) showed similarities and differences with ST(NA), ST(A), and MCC that relate the modification. Acetylsalicylic acid (ASA) tablets containing ST(AM) disintegrated at 3±0.5 min as compared with the tablets containing ST(NA), ST(A), and MCC which disintegrated at 8.5±0.5, 10±0.5, and 58±0.8 min, respectively. The study shows the physicochemical properties of tigernut starch modified by forced retrogradation as well as its potential as an efficient direct compression excipient with enhanced flow and disintegration abilities for tablets production.
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High-shear granulation as a manufacturing method for cocrystal granules. Eur J Pharm Biopharm 2013; 85:1019-30. [PMID: 23685353 DOI: 10.1016/j.ejpb.2013.04.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 04/23/2013] [Accepted: 04/29/2013] [Indexed: 11/22/2022]
Abstract
Cocrystal formation allows the tailoring of physicochemical as well as of mechanical properties of an API. However, there is a lack of large-scale manufacturing methods of cocrystals. Therefore, the objective of this work was to examine the suitability of high-shear wet granulation as a manufacturing method for cocrystal granules on a batch scale. Furthermore, the cocrystal granules were characterized regarding their mechanical properties as well as their dissolution behavior. High-shear wet granulation was found to be a feasible manufacturing method for cocrystal granules. Cocrystal formation depended on the exposure time of the solids to the granulation liquid (water), the amount of liquid, the impeller speed of the granulator, and on the excipients (hydroxyl propylcellulose, microcrystalline cellulose, calcium hydrogenphosphate) used in the formulation. Storage stability was strongly influenced by the excipients, since in presence of calcium hydrogenphosphate, the poorly water-soluble salt calcium tartrate monohydrate was formed at high relative humidity. Interestingly, compactability was increased by cocrystal formation compared to that of the reference granules (piracetam and the respective excipients). The drug release was slightly decreased by cocrystal formation, most likely due to the lower solubility of the cocrystal. In the presence of calcium hydrogenphosphate however, no influence of cocrystal formation on either compactability or on drug release were observed, compared with the reference tablets. It was concluded that high-shear wet granulation is a valuable, however complex, manufacturing method for cocrystals. Cocrystal formation may influence compactability and drug release and thus affect drug performance and should be investigated during pre-formulation.
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Mamleeva NA, Kharlanov AN, Lunin VV. Delignification of deciduous wood under the action of hydrogen peroxide and ozone. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2012. [DOI: 10.1134/s0036024413010123] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Szakonyi G, Zelkó R. The effect of water on the solid state characteristics of pharmaceutical excipients: Molecular mechanisms, measurement techniques, and quality aspects of final dosage form. Int J Pharm Investig 2012; 2:18-25. [PMID: 23071956 PMCID: PMC3465153 DOI: 10.4103/2230-973x.96922] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper we give an overview about the interaction of water molecules with pharmaceutical excipients. Most of these excipients are amorphous or partially amorphous polymers and their characteristics are very sensitive to the water content. In the course of the manufacturing processes water sorption is possible, therefore in some cases it is important to strictly control the residual moisture content of a dosage form. There are several mechanisms of water sorption, like water is able to bind to polar groups of hygroscopic excipients and could also exist in the capillary system of amorphous excipients. Several techniques are available to characterise the states of water inside the materials and the effects of residual water on polymers. For this purpose water sorption measurements, differential scanning calorimetry and the Fourier-transform infrared spectroscopy are reviewed. The importance of water content and storage conditions of pharmaceuticals on the properties of the final dosage forms are also demonstrated with practical examples.
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Affiliation(s)
- Gergely Szakonyi
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, Budapest, Hungary
| | - Romána Zelkó
- University Pharmacy Department of Pharmacy Administration, Semmelweis University, Budapest, Hungary
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Grisedale LC, Jamieson MJ, Belton P, Barker SA, Craig DQ. Characterization and Quantification of Amorphous Material in Milled and Spray-Dried Salbutamol Sulfate: A Comparison of Thermal, Spectroscopic, and Water Vapor Sorption Approaches. J Pharm Sci 2011; 100:3114-3129. [DOI: 10.1002/jps.22484] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Revised: 11/28/2010] [Accepted: 12/21/2010] [Indexed: 01/30/2023]
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Abdel-Hamid S, Betz G. Radial die-wall pressure as a reliable tool for studying the effect of powder water activity on high speed tableting. Int J Pharm 2011; 411:152-61. [PMID: 21497644 DOI: 10.1016/j.ijpharm.2011.03.066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 03/25/2011] [Accepted: 03/31/2011] [Indexed: 11/18/2022]
Abstract
The effect of moisture as a function of water activity (Aw) on the compaction process is important to understand particle/water interaction and deformation. Studying powder/moisture interaction under pressure with radial die-wall pressure (RDWP) tool was never done. The aim of our study was to use this tool to study this interaction at high compression pressure and speed. Moreover, the effect of changing ejection cam angle (EA) of the machine on ejection force (EF) was investigated. Also, a new tool for prediction of tablet sticking was proposed. Materials with different deformation behaviors stored at low and high moisture conditions were used. Compaction simulation guided by modeling was applied. High Aw resulted in a low residual die-wall pressure (RDP) for all materials, and a high maximum die-wall pressure (MDP) for plastic materials, p < 0.05. This was due to the lubricating and plasticizing effects of water, respectively. However, microcrystalline cellulose showed capping at high Aw and compaction pressure. By increasing compression pressure at high Aw for all materials, effective fall time (EFT) was increased, p < 0.05, showing tendency for sticking. Increasing EA caused an increase of friction and EF for powders, p < 0.05. RDWP was a useful tool to understand particle/moisture interaction under pressure.
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Affiliation(s)
- Sameh Abdel-Hamid
- Industrial Pharmacy Research Group, Department of Pharmaceutical Sciences, University of Basel, Mülhauserstr 51, CH-4056 Basel, Switzerland
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Hiatt AN, Taylor LS, Mauer LJ. Effects of Co-Formulation of Amorphous Maltodextrin and Deliquescent Sodium Ascorbate on Moisture Sorption and Stability. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2011. [DOI: 10.1080/10942910903374114] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tewes F, Tajber L, Corrigan O, Ehrhardt C, Healy A. Development and characterisation of soluble polymeric particles for pulmonary peptide delivery. Eur J Pharm Sci 2010; 41:337-52. [DOI: 10.1016/j.ejps.2010.07.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2010] [Revised: 06/10/2010] [Accepted: 07/01/2010] [Indexed: 10/19/2022]
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Chakravarty P, Govindarajan R, Suryanarayanan R. Investigation of Solution and Vapor Phase Mediated Phase Transformation in Thiamine Hydrochloride. J Pharm Sci 2010; 99:3941-52. [DOI: 10.1002/jps.22240] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Builders PF, Nnurum A, Mbah CC, Attama AA, Manek R. The physicochemical and binder properties of starch from Persea americana Miller (Lauraceae). STARCH-STARKE 2010. [DOI: 10.1002/star.200900222] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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