1
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Sohn JS, Choi YE, Choi JS. Designing starch-based fenofibrate formulations using the melting method. Int J Biol Macromol 2024; 272:132903. [PMID: 38848840 DOI: 10.1016/j.ijbiomac.2024.132903] [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: 03/07/2024] [Revised: 05/30/2024] [Accepted: 06/02/2024] [Indexed: 06/09/2024]
Abstract
Fenofibrate (FNF) is used to treat hyperlipidemia. However, FNF is a poorly water-soluble drug, and the dosage of commercial products is relatively high at 160 mg in a Lipidil® tablet. Therefore, this study aimed to develop an FNF-solid dispersion (SD) that solubilizes and stabilizes FNF. The melting method that uses the low melting point of FNF was employed. The dissolution percentage of FNF in the optimal formulation (SD2) increased by 1.2-, 1.3-, and 1.3-fold at 5 min compared to that of Lipidil® and increased by 2.0-, 2.1-, and 2.0-fold compared to the pure FNF in pH 1.2 media, distilled water, and pH 6.8 buffer, which included 0.025 M sodium lauryl sulfate, respectively. The SD2 formulation showed a dissolution percentage of nearly 100 % in all dissolution media after 60 min. The physicochemical properties of the SD2 formulation exhibited slight changes in the melting point and crystallinity of FNF. Moreover, the stability of the SD2 formulation was maintained for six months. In particular, it was challenging to secure stability when starch#1500 was excluded from the SD2 formulation. In conclusion, the dissolution percentage of FNF in the SD2 formulation was improved owing to the weak binding force between FNF and the excipients, stability was secured, and favorable results are expected in future animal experiments.
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Affiliation(s)
- Jeong Sun Sohn
- Division of Interdisciplinary Studies, Chosun University, Ph.D, Associate Professor, Gwangju 61452, Republic of Korea
| | - Ye Eun Choi
- School of Medicine, St. George's University, Student, West Indies, Grenada
| | - Jin-Seok Choi
- Department of Medical Management, Chodang University, Ph.D, Assistant Professor, 380 Muan-ro, Muan-eup, Muan-gun, Jeollanam-do 58530, Republic of Korea.
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2
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Veronica N, Heng PWS, Liew CV. Understanding the Roles of Excipients in Moisture Management in Solid Dosage Forms. Mol Pharm 2024; 21:2484-2500. [PMID: 38647432 DOI: 10.1021/acs.molpharmaceut.4c00031] [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] [Indexed: 04/25/2024]
Abstract
Excipients are ubiquitous in pharmaceutical products, and often, they can also play a critical role in maintaining product quality. For a product containing a moisture-sensitive drug, moisture can be deleterious to the product stability during storage. Therefore, using excipients that interact with moisture in situ can potentially alleviate product stability issues. In this study, the interactive behavior of starch with moisture was augmented by coprocessing maize starch with sodium chloride (NaCl) or magnesium nitrate hexahydrate [Mg(NO3)2·6H2O] at different concentrations (5 and 10%, w/w). The effect of the formulation on drug stability was assessed through the degradation of acetylsalicylic acid, which was used as the model drug. The results showed that coprocessing of the starch with either NaCl or Mg(NO3)2·6H2O impacted the number of water molecule binding sites on the starch and how the sorbed moisture was distributed. The coprocessed excipients also resulted in lower drug degradation and lesser changes in tablet tensile strength during post-compaction storage. However, corresponding tablet formulations containing physical mixtures of starch and salts did not yield promising outcomes. This study demonstrated the advantageous concomitant use of common excipients by coprocessing to synergistically mitigate the adverse effects of moisture and promote product stability when formulating a moisture-sensitive drug. In addition, the findings could help to improve the understanding of moisture-excipient interactions and allow for the judicious choice of excipients when designing formulations containing moisture-sensitive drugs.
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Affiliation(s)
- Natalia Veronica
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
| | - Paul W S Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy and Pharmaceutical Sciences, National University of Singapore, 18 Science Drive 4, Singapore 117543, Singapore
- Airlangga University, Kampus C Mulyorejo, Surabaya 60115, Indonesia
| | - Celine V Liew
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, Subang Jaya 47500, Selangor, Malaysia
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3
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Shervani S, Strong C, Tezel FH. Simultaneous impregnation and microencapsulation of CaCl 2 using silica gel and methyl cellulose for thermal energy storage applications. Sci Rep 2024; 14:7183. [PMID: 38531916 DOI: 10.1038/s41598-023-50672-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 12/22/2023] [Indexed: 03/28/2024] Open
Abstract
Thermal energy storage utilizing the adsorption of moisture from air is a promising energy storage technology due to its high energy density and minimum heat losses. Salt hydrates and salt hydrate composites, such as calcium chloride (CaCl2) and CaCl2-based composites, have shown favourable energy storage properties in this area of research. However, these materials have shown issues with stability due to swelling and deliquescence. In this work, CaCl2 was stabilized using three methods: impregnation into silica gel, encapsulation in methyl cellulose, and both impregnation and encapsulation stabilization techniques used simultaneously. Therefore, three CaCl2-based composites were synthesized. For the first composite, silica gel was impregnated with CaCl2. For the second composite, CaCl2 was encapsulated by methyl cellulose. For the third composite, silica gel was impregnated with CaCl2 and the CaCl2 was encapsulated with methyl cellulose. These samples were structurally characterized using scanning electron microscopy as well as Brunauer-Emmett-Teller (BET) to determine surface area, pore size distribution and nitrogen adsorption isotherms at 77 K. Water vapour adsorption isotherms were also determined at 25 °C for different relative humidities by dynamic vapor sorption (DVS). Similarly, LiCl-based composites were also synthesized and examined in this work, but issues of deliquescence, swelling, and agglomeration made the materials impractical to work with. To determine the prepared materials' thermal energy storage performance, 2-6 g of each sample was tested in a lab-scale apparatus. This process uses the exothermic adsorption of moisture from ambient air in an open thermal energy storage system. The CaCl2 impregnated silica gel that was encapsulated in methyl cellulose showed reasonably high stability and energy storage performance after 3 hydration and dehydration cycles with minimum agglomeration. An energy storage density of 241 kWh/m3 (0.87 GJ/m3) and specific energy of 630 Wh/kg (2268 kJ/kg) was achieved with this material for 90% inlet relative humidity after a regeneration at 90 °C.
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Affiliation(s)
- Suboohi Shervani
- Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada
| | - Curtis Strong
- Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada
| | - F Handan Tezel
- Chemical and Biological Engineering, University of Ottawa, Ottawa, ON, Canada.
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4
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Sun J, Fang TS, Chen YX, Tsai YC, Liu YX, Chen CY, Su CY, Fang HW. Improving the Physical Properties of Starch-Based Powders for Potential Anti-Adhesion Applications. Polymers (Basel) 2023; 15:4702. [PMID: 38139954 PMCID: PMC10747860 DOI: 10.3390/polym15244702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Postoperative adhesion is one of the most common complications that occur during and after surgery; thus, materials that can prevent adhesion are often applied. Starch powders with a high water absorption capacity are preferred, and many studies have focused on increasing the water absorption of modified starches, as native starch powders display poor water-holding capacities. The effects of salts on the physical properties of acetylated distarch phosphate potato starch powders were investigated here. Changes in functional groups, the crystal structures of modified starch, particle morphologies, water absorption, viscosity, and in vivo adhesion were investigated. The results showed that salts greatly improved the water absorption and viscosity of acetylated distarch phosphate potato starch powders. Among the three different salt-modified starch powders, NaCl-modified starch powders displayed higher water absorption and viscosity and demonstrated better in vivo anti-adhesion performance. The results of this study propose a potential biomaterial that may function as an anti-adhesive, potentially leading to reduced surgical risks and a better quality of life for patients.
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Affiliation(s)
- Jaydon Sun
- Thomas Jefferson High School for Science and Technology, Alexandria, VA 22312, USA;
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
| | - Tzu-Shan Fang
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
- Taipei WEGO Private Senior High School, Taipei 11254, Taiwan
| | - Yu-Xiang Chen
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
| | - Yu-Cheng Tsai
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Yi-Xin Liu
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Chih-Yu Chen
- Department of Orthopedics, Shuang Ho Hospital, Taipei Medical University, New Taipei City 23561, Taiwan;
- Department of Orthopedics, School of Medicine, College of Medicine, Taipei Medical University, Taipei 11042, Taiwan
| | - Chen-Ying Su
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Hsu-Wei Fang
- High-Value Biomaterials Research and Commercialization Center, National Taipei University of Technology, Taipei 10608, Taiwan; (T.-S.F.); (Y.-X.C.); (Y.-C.T.); (Y.-X.L.)
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei 10608, Taiwan
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 35053, Taiwan
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5
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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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6
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Feng S, Bi J, Yi J, Li X, Li J, Ma Y. Cell wall polysaccharides and mono-/disaccharides as chemical determinants for the texture and hygroscopicity of freeze-dried fruit and vegetable cubes. Food Chem 2022; 395:133574. [DOI: 10.1016/j.foodchem.2022.133574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 05/13/2022] [Accepted: 06/23/2022] [Indexed: 11/04/2022]
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7
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Dalby OL, Abbott S, Matubayasi N, Shimizu S. Cooperative Sorption on Heterogeneous Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13084-13092. [PMID: 36255175 PMCID: PMC9632245 DOI: 10.1021/acs.langmuir.2c01750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/28/2022] [Indexed: 05/19/2023]
Abstract
Heterogeneous adsorbents, those composed of multiple surface and pore types, can result in stepwise isotherms that have been difficult to model. The complexity of these systems has often led to appealing to empirical equations without physical insights, unrealistic assumptions with many parameters, or applicability limited to a particular class of isotherms. Here, we present a statistical thermodynamic approach to model stepwise isotherms, those consisting of either an initial rise followed by a sigmoid or multiple sigmoidal steps, founded on the rigorous statistical thermodynamic theory of sorption. Our only postulates are (i) the finite ranged nature of the interface and (ii) the existence of several different types of microscopic interfacial subsystems that act independently in sorption. These two postulates have led to the superposition scheme of simple surface (i.e., Langmuir type) and cooperative isotherms. Our approach has successfully modeled the adsorption on micro-mesoporous carbons, gate-opening adsorbents, and hydrogen-bonded organic frameworks. In contrast to the previous models that start with a priori assumptions on sorption mechanisms, the advantages of our approach are that it can be applied universally under the above two postulates and that all of the fitting parameters can be interpreted with statistical thermodynamics, leading to clear insights on sorption mechanisms.
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Affiliation(s)
- Olivia
P. L. Dalby
- York
Structural Biology Laboratory, Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Steven Abbott
- Steven
Abbott TCNF Limited, 7 Elsmere Road, Ipswich, Suffolk IP1 3SZ, United Kingdom
- School
of Mechanical Engineering, University of
Leeds, LeedsLS2 9JT, United Kingdom
| | - Nobuyuki Matubayasi
- Division
of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka560-8531, Japan
| | - Seishi Shimizu
- York
Structural Biology Laboratory, Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
- E-mail:
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8
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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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9
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Razavi SM, Tao Y, Scicolone J, Morker T, Cunningham C, Rajabi-Siahboomi A, Hausner DB, Muzzio FJ. Starch Products as Candidate Excipients in a Continuous Direct Compression Line. J Pharm Innov 2022. [DOI: 10.1007/s12247-020-09504-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Kodavaty J. Poly (vinyl alcohol) and hyaluronic acid hydrogels as potential biomaterial systems - A comprehensive review. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103298] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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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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12
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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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13
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Influence of gelatinization degree and octenyl succinic anhydride esterification on the water sorption characteristics of corn starch. Carbohydr Polym 2021; 270:118378. [PMID: 34364622 DOI: 10.1016/j.carbpol.2021.118378] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/11/2021] [Accepted: 06/23/2021] [Indexed: 11/22/2022]
Abstract
The effects of gelatinization degree (GD) and octenyl succinic anhydride (OSA) esterification in the sorption-desorption characteristics of normal corn starch (NCS) were studied. NCS was subjected to different GD (53, 70, and 96%) with an extruder and lyophilized. FTIR analysis revealed that GD increased the hydrated (995/1022 ratio) and decreased the short-range ordered (1022/1047 ratio). The equilibrium sorption-desorption curve of starches was obtained for water activities up to 0.95 and fitted with the Guggenheim-Anderson-de Boer (GAB) model. Gelatinization of corn starch decreased its water sorption capacity, increased its sorption hysteresis and decreased its monolayer moisture content. OSA treatment of NCS reduced the water sorption capacity, hysteresis, and monolayer moisture content as reflected by slight variations of these parameters with the GD. A principal component analysis showed that GD and OSA esterification are mutually independent treatments, which can provide different effects on the water sorption characteristics of NCS.
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14
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Del Gaudio I, Hunter-Sellars E, Parkin IP, Williams D, Da Ros S, Curran K. Water sorption and diffusion in cellulose acetate: The effect of plasticisers. Carbohydr Polym 2021; 267:118185. [PMID: 34119153 DOI: 10.1016/j.carbpol.2021.118185] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/04/2021] [Accepted: 05/06/2021] [Indexed: 11/19/2022]
Abstract
The conservation of cellulose acetate plastics in museum collections presents a significant challenge, due to the material's instability. Several studies have led to an understanding of the role of relative humidity (RH) and temperature in the decay process. It is well established that a major decay mechanism in cellulose acetate museum objects is the loss of plasticiser, and that the main decay mechanism of the polymer chain involves hydrolysis reactions. This leads to the loss of sidechain groups and the breakdown of the main polymer backbone. However, interactions between these decay mechanisms, specifically the way in which the loss of plasticiser can modify the interaction between cellulose acetate and water, has not yet been investigated. This research addresses the role of RH, studying the sorption and diffusion of water in cellulose acetate and how this interaction can be affected by plasticiser concentration using Dynamic Vapour Sorption (DVS).
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Affiliation(s)
- Isabella Del Gaudio
- Institute Sustainable Heritage, University College London, 14 Upper Woburn Place, London WC1H 0NN, United Kingdom.
| | - Elwin Hunter-Sellars
- Department of Chemical Engineering, Imperial College London, Exhibition Road, Kensington, London SW7 2AZ, United Kingdom
| | - Ivan P Parkin
- Faculty of Maths & Physical Sciences, University College London, Gower St, Bloomsbury, London WC1E 6BT, United Kingdom
| | - Daryl Williams
- Department of Chemical Engineering, Imperial College London, Exhibition Road, Kensington, London SW7 2AZ, United Kingdom; Surface Measurement Systems Ltd., Unit 5, Wharfside Rosemont Road, Alperton, London HA0 4PE, United Kingdom
| | - Simoní Da Ros
- Institute Sustainable Heritage, University College London, 14 Upper Woburn Place, London WC1H 0NN, United Kingdom
| | - Katherine Curran
- Institute Sustainable Heritage, University College London, 14 Upper Woburn Place, London WC1H 0NN, United Kingdom
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15
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Elgaied-Lamouchi D, Descamps N, Lefevre P, Rambur I, Pierquin JY, Siepmann F, Siepmann J, Muschert S. Starch-based controlled release matrix tablets: Impact of the type of starch. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102152] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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