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Corum I, Spangenberg A, Miller K, Kucera S, Miller D. Minimization of Acid-Catalyzed Degradation in KinetiSol Processing through HPMCAS Neutralization. Mol Pharm 2023; 20:1599-1612. [PMID: 36787489 DOI: 10.1021/acs.molpharmaceut.2c00791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Hypromellose acetate succinate (HPMCAS) is an enteric polymer that has been successfully employed as a carrier in amorphous solid dispersions (ASDs). Deprotonation of succinic acid substituents at intestinal pH levels results in solubilization of the polymer. However, the acidic moieties responsible for favorable pH-dependent solubility can also result in incompatibilities between acid-sensitive drugs and HPMCAS. Solution-state conversion of the carboxylic acid substituents of enteric polymers into carboxylate salts to reduce acid-mediated drug degradation is a demonstrated effective strategy for generating ASDs in enteric polymers. This work aimed to extend the use of a pre-ionized enteric polymer to KinetiSol solvent-free processing to reduce acid- or base-mediated drug degradation during processing. Pre-ionization of HPMCAS was accomplished by reaction with a stoichiometric quantity of sodium carbonate (Na2CO3) delivered as a saturated aqueous solution. The resulting ionized polymer, HPMCAS-Na, was dried thoroughly before processing. Tetrabenazine (TBZ) was chosen as a model drug for its susceptibility to degradation via both acid- and base-catalyzed reaction mechanisms and for its tendency to form a single impurity by these mechanisms. The use of HPMCAS-Na in KinetiSol solid dispersions (KSDs) of TBZ resulted in a 6- to 8-fold reduction of the acid- and base-generated TBZ impurity compared with KSDs formulated with untreated HPMCAS.
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Affiliation(s)
- Isaac Corum
- Department of Pharmaceutics, AustinPx, Pharmaceutics and Manufacturing, 111 W. Cooperative Way, Bldg. 3, Georgetown, Texas 78626 United States
| | - Angela Spangenberg
- Department of Pharmaceutics, AustinPx, Pharmaceutics and Manufacturing, 111 W. Cooperative Way, Bldg. 3, Georgetown, Texas 78626 United States
| | - Krystal Miller
- Department of Pharmaceutics, AustinPx, Pharmaceutics and Manufacturing, 111 W. Cooperative Way, Bldg. 3, Georgetown, Texas 78626 United States
| | - Sandra Kucera
- Department of Pharmaceutics, AustinPx, Pharmaceutics and Manufacturing, 111 W. Cooperative Way, Bldg. 3, Georgetown, Texas 78626 United States
| | - Dave Miller
- Department of Pharmaceutics, AustinPx, Pharmaceutics and Manufacturing, 111 W. Cooperative Way, Bldg. 3, Georgetown, Texas 78626 United States
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Eudraguard ® Natural and Protect: New "Food Grade" Matrices for the Delivery of an Extract from Sorbus domestica L. Leaves Active on the α-Glucosidase Enzyme. Pharmaceutics 2023; 15:pharmaceutics15010295. [PMID: 36678923 PMCID: PMC9861284 DOI: 10.3390/pharmaceutics15010295] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/15/2022] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
(1) Background: Eudraguard® Natural (EN) and Protect (EP) are polymers regulated for use in dietary supplements in the European Union and the United States to carry natural products, mask unpleasant smells and tastes, ameliorate product handling, and protect products from moisture, light, and oxidation. Moreover, EN and EP can control the release of encapsulated compounds. The aim of this work was the development, preparation, and control of Eudraguard® spray-drying microparticles to obtain powders with easy handling and a stable dietary supplement containing a polar functional extract (SOE) from Sorbus domestica L. leaves. (2) Methods: SOE was characterized using HPLC, NMR, FTIR, DSC, and SEM methods. Furthermore, the SOE's antioxidant/free radical scavenging activity, α-glucosidase inhibition, MTT assay effect on viability in normal cells, and shelf life were evaluated in both the extract and final formulations. (3) Results: The data suggested that SOE, rich in flavonoids, is a bioactive and safe extract; however, from a technological point of view, it was sticky, difficult to handle, and had low aqueous solubility. Despite the fact that EN and EP may undergo changes with spray-drying, they effectively produced easy-to-handle micro-powders with a controlled release profile. Although EN had a weaker capability to coat SOE than EP, EN acted as a substrate that was able to swell, drawing in water and improving the extract solubility and dissolution/release; however, EP was also able to carry the extract and provide SOE with controlled release. (4) Conclusion: Both Eudraguard® products were capable of carrying SOE and improving its antioxidant and α-glucosidase inhibition activities, as well as the extract stability and handling.
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3
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Shen W, Ning Y, Ge X, Fan G, Ao F, Wu S, Mao Y. Phosphoglyceride‐coated polylactic acid porous microspheres and its regulation of curcumin release behavior. J Appl Polym Sci 2022. [DOI: 10.1002/app.52118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Wen Shen
- School of Food and Biological Engineering Shaanxi University of Science & Technology Xi'an PR China
| | - Yuanlan Ning
- School of Food and Biological Engineering Shaanxi University of Science & Technology Xi'an PR China
| | - Xuemei Ge
- Department of Food Science and Technology, College of Light Industry Science and Engineering Nanjing Forestry University Nanjing PR China
| | - Guodong Fan
- College of Chemistry and Chemical Engineering Shaanxi University of Science & Technology Xi'an PR China
| | - Fen Ao
- School of Food and Biological Engineering Shaanxi University of Science & Technology Xi'an PR China
| | - Shang Wu
- School of Food and Biological Engineering Shaanxi University of Science & Technology Xi'an PR China
| | - Yueyang Mao
- School of Food and Biological Engineering Shaanxi University of Science & Technology Xi'an PR China
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Madla CM, Gavins FKH, Merchant HA, Orlu M, Murdan S, Basit AW. Let's talk about sex: Differences in drug therapy in males and females. Adv Drug Deliv Rev 2021; 175:113804. [PMID: 34015416 DOI: 10.1016/j.addr.2021.05.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/04/2021] [Accepted: 05/15/2021] [Indexed: 12/13/2022]
Abstract
Professor Henry Higgins in My Fair Lady said, 'Why can't a woman be more like a man?' Perhaps unintended, such narration extends to the reality of current drug development. A clear sex-gap exists in pharmaceutical research spanning from preclinical studies, clinical trials to post-marketing surveillance with a bias towards males. Consequently, women experience adverse drug reactions from approved drug products more often than men. Distinct differences in pharmaceutical response across drug classes and the lack of understanding of disease pathophysiology also exists between the sexes, often leading to suboptimal drug therapy in women. This review explores the influence of sex as a biological variable in drug delivery, pharmacokinetic response and overall efficacy in the context of pharmaceutical research and practice in the clinic. Prospective recommendations are provided to guide researchers towards the consideration of sex differences in methodologies and analyses. The promotion of disaggregating data according to sex to strengthen scientific rigour, encouraging innovation through the personalisation of medicines and adopting machine learning algorithms is vital for optimised drug development in the sexes and population health equity.
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Affiliation(s)
- Christine M Madla
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Francesca K H Gavins
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Hamid A Merchant
- Department of Pharmacy, School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield HD1 3DH, United Kingdom
| | - Mine Orlu
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Sudaxshina Murdan
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Abdul W Basit
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29 - 39 Brunswick Square, London WC1N 1AX, United Kingdom.
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5
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Abstract
Tableting by direct compression (DC) is one of the simplest and most cost-effective drug manufacturing approaches. However, most active pharmaceutical ingredients (APIs) and excipients lack the compression and flow properties required to meet the needs of high-speed industrial tablet presses. Therefore, the majority of DC APIs and excipients are modified via processing/co-processing particle engineering techniques to boost their properties. Spray drying is one of the most commonly employed techniques to prepare DC grades of APIs and excipients with prominent advantages. This review aims to present an overview of the commercially marketed and investigationally-prepared DC APIs and excipients produced by spray drying.
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6
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An innovative wax-based enteric coating for pharmaceutical and nutraceutical oral products. Int J Pharm 2020; 591:119935. [DOI: 10.1016/j.ijpharm.2020.119935] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 09/05/2020] [Accepted: 09/27/2020] [Indexed: 01/01/2023]
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7
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Partheniadis I, Zarafidou E, Litinas KE, Nikolakakis I. Enteric Release Essential Oil Prepared by Co-Spray Drying Methacrylate/Polysaccharides-Influence of Starch Type. Pharmaceutics 2020; 12:E571. [PMID: 32575489 PMCID: PMC7355490 DOI: 10.3390/pharmaceutics12060571] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/13/2020] [Accepted: 06/17/2020] [Indexed: 12/14/2022] Open
Abstract
Oregano essential oil (EO) enteric release powder was formulated by spray drying feed emulsions stabilized with polysaccharides (PSC) and Eudragit® L100 (PLM). Different modified starches were used in the PSC component. Spray-dried powders were evaluated for particle size and morphology, dynamic packing, flowability, chemical interactions, reconstitution, and gastric protection. Feed emulsions were stable, indicating the good emulsification ability of the PLM/PSC combination. The presence of polymer in the encapsulating wall neutralized electrostatic charges indicating physical attraction, and FTIR spectra showed peaks of both PLM and PSC without significant shifting. Furthermore, the presence of polymer influenced spray drying, resulting in the elimination of surface cavities and the improvement of powder packing and flowability, which was best when the surface-active, low-viscosity sodium octenyl succinate starch was used (angle of repose 42°). When a PLM/PSC ratio of 80/20 was used in the encapsulating wall, the spray-dried product showed negligible re-emulsification and less than 15% release in pH 1.2 medium for 2 h, confirming gastric protection, whereas at pH 6.8, it provided complete re-emulsification and release. In conclusion, (1) polymer-PSC physical interaction promoted the formation of a smoother particle surface and product with improved technological properties, which is important for further processing, and (2) the gastro protective function of Eudragit® L100 was not impaired due to the absence of significant chemical interactions.
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Affiliation(s)
- Ioannis Partheniadis
- Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.Z.)
| | - Evangelia Zarafidou
- Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.Z.)
| | - Konstantinos E. Litinas
- Laboratory of Organic Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Ioannis Nikolakakis
- Department of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.P.); (E.Z.)
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8
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Development of enteric polymer-based microspheres by spray-drying for colonic delivery of Lactobacillus rhamnosus GG. Int J Pharm 2020; 584:119414. [DOI: 10.1016/j.ijpharm.2020.119414] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 05/05/2020] [Accepted: 05/06/2020] [Indexed: 01/13/2023]
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9
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Shams T, Illangakoon UE, Parhizkar M, Harker AH, Edirisinghe S, Orlu M, Edirisinghe M. Electrosprayed microparticles for intestinal delivery of prednisolone. J R Soc Interface 2019; 15:rsif.2018.0491. [PMID: 30158187 PMCID: PMC6127171 DOI: 10.1098/rsif.2018.0491] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 07/25/2018] [Indexed: 12/16/2022] Open
Abstract
Single and coaxial electrospraying was used to prepare Eudragit L100-55 polymer microparticles containing prednisolone as the active pharmaceutical ingredient. Different compositions of prednisolone and Eudragit L100-55 were used to develop five different formulations with different polymer : drug ratios. The resultant microparticles had a toroidal shape with a narrow size distribution. Prednisolone was present in an amorphous physical state, as confirmed by X-ray diffraction analysis. Dissolution studies were carried out in order to investigate the feasibility of the proposed system for site-specific release of prednisolone. The release rates were interpreted in terms of diffusion-controlled release. It was shown that utilization of pH-responsive Eudragit L100-55 could minimize the release of prednisolone in the acidic conditions of the stomach, which was followed by rapid release as the pH of the release medium was adjusted to 6.8 after the first 2 h. This is especially desirable for the treatment of conditions including inflammatory bowel disease and colon cancer.
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Affiliation(s)
- T Shams
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - U E Illangakoon
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - M Parhizkar
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
| | - A H Harker
- Department of Physics and Astronomy and London Centre for Nanotechnology, University College London, London WC1E 6BT, UK
| | - S Edirisinghe
- Maidstone Hospital, Hermitage Lane, Maidstone ME16 9QQ, UK
| | - M Orlu
- Department of Pharmaceutics, University College London School of Pharmacy, Brunswick Square, London WC1N 1AX, UK
| | - M Edirisinghe
- Department of Mechanical Engineering, University College London, Torrington Place, London WC1E 7JE, UK
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10
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The delivery of sensitive food bioactive ingredients: Absorption mechanisms, influencing factors, encapsulation techniques and evaluation models. Food Res Int 2019; 120:130-140. [PMID: 31000223 DOI: 10.1016/j.foodres.2019.02.024] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/10/2019] [Accepted: 02/14/2019] [Indexed: 02/07/2023]
Abstract
Food-sourced bioactive compounds have drawn much attention due to their health benefits such as anti-oxidant, anti-cancer, anti-diabetes and cardiovascular disease-preventing functions. However, the poor solubility, low stability and limited bioavailability of sensitive bioactive compounds greatly limited their application in food industry. Therefore, numbers of carriers were developed for improving their dispersibility, stability and bioavailability. This review addresses the digestion and absorption mechanisms of bioactive compounds in epithelial cells based on several well-known in vitro and in vivo models. Factors such as environmental stimuli, stomach conditions and mucus barrier influencing the utilization efficacy of the bioactive compounds are discussed. Delivery systems with enhanced utilization efficacy, such as complex coacervates, cross-linked polysaccharides, self-assembled micro-/nano-particles and Pickering emulsions are compared. It is a comprehensive multidisciplinary review which provides useful guidelines for application of bioactive compounds in food industry.
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11
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Tawfeek HM, Abdellatif AAH, Dennison TJ, Mohammed AR, Sadiq Y, Saleem IY. Colonic delivery of indometacin loaded PGA-co-PDL microparticles coated with Eudragit L100-55 from fast disintegrating tablets. Int J Pharm 2017; 531:80-89. [PMID: 28818458 DOI: 10.1016/j.ijpharm.2017.08.069] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/02/2017] [Accepted: 08/08/2017] [Indexed: 01/23/2023]
Abstract
The aim of this work was to investigate the efficient targeting and delivery of indometacin (IND), as a model anti-inflammatory drug to the colon for treatment of inflammatory bowel disease. We prepared fast disintegrating tablets (FDT) containing IND encapsulated within poly(glycerol-adipate-co-ɷ-pentadecalactone), PGA-co-PDL, microparticles and coated with Eudragit L100-55 at different ratios (1:1.5, 1:1, 1:0.5). Microparticles encapsulated with IND were prepared using an o/w single emulsion solvent evaporation technique and coated with Eudragit L-100-55 via spray drying. The produced coated microparticles (PGA-co-PDL-IND/Eudragit) were formulated into optimised FTD using a single station press. The loading, in vitro release, permeability and transport of IND from PGA-co-PDL-IND/Eudragit microparticles was studied in Caco-2 cell lines. IND was efficiently encapsulated (570.15±4.2μg/mg) within the PGA-co-PDL microparticles. In vitro release of PGA-co-PDL-IND/Eudragit microparticles (1:1.5) showed significantly (p<0.05, ANOVA/Tukey) lower release of IND 13.70±1.6 and 56.46±3.8% compared with 1:1 (89.61±2.5, 80.13±2.6%) and 1:0.5 (39.46±0.9 & 43.38±3.12) after 3 and 43h at pH 5.5 and 6.8, respectively. The permeability and transport studies indicated IND released from PGA-co-PDL-IND/Eudragit microparticles had a lower permeability coefficient of 13.95±0.68×10-6cm/s compared to free IND 23.06±3.56×10-6cm/s. These results indicate the possibility of targeting anti-inflammatory drugs to the colon using FDTs containing microparticles coated with Eudragit.
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Affiliation(s)
- Hesham M Tawfeek
- Department of Industrial Pharmacy, Faculty of Pharmacy, Assiut University, Assiut, Egypt.
| | - Ahmed A H Abdellatif
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt; Department of Pharmaceutics, Faculty of Pharmacy, Qassim University, Buraydah, Saudi Arabia
| | | | | | - Younis Sadiq
- School of Pharmacy and Biomolecular Science, Liverpool John Moores University, Liverpool, UK
| | - Imran Y Saleem
- School of Pharmacy and Biomolecular Science, Liverpool John Moores University, Liverpool, UK.
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12
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Yin J, Xiang C, Song X. Nanoencapsulation of psoralidin via chitosan and Eudragit S100 for enhancement of oral bioavailability. Int J Pharm 2016; 510:203-9. [PMID: 27154253 DOI: 10.1016/j.ijpharm.2016.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 03/29/2016] [Accepted: 05/02/2016] [Indexed: 10/21/2022]
Abstract
Psoralidin (PL) has recently been attracting more attention as a new anticancer agent candidate. Nevertheless, peroral administration of PL is largely challenged by its insoluble nature and intestinal efflux. This article aimed to develop a nanoencapsulation formulation of PL using water-soluble chitosan and Eudragit S100 and to evaluate its potential for bioavailability enhancement. PL-loaded nanocapsules (PL-NCs) were prepared by a solvent diffusion and high-pressure homogenization technique with Poloxamer 188 as a stabilizer. The resultant PL-NCs were approximately 132.5nm in particle size and possessed a high entrapment efficiency (98.1%). In vitro release showed that PL was released less from the nanocapsules due to electrostatic complexation. A lipolytic experiment demonstrated that our prepared PL-NCs were not degraded by lipase, in contrast with the most commonly used lipid nanoparticles. Furthermore, PL-NCs appeared to have less affinity for intestinal mucins. Following oral administration, the bioavailability of PL was significantly enhanced via the PL-NCs, with a value of 339.02% relative to the reference (suspensions). Excellent intestinal adhesion and transepithelial permeability accounted for the enhancement of oral bioavailability. Taken together, these results indicate that nanoencapsulation of PL with chitosan and Eudragit S100 is a promising strategy for improved PL oral delivery.
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Affiliation(s)
- Juntao Yin
- Department of Pharmaceutics, Huaihe Hospital Affiliated with Henan University, No. 1 Baobei Road, Kaifeng 475000, PR China
| | - Cuiyu Xiang
- Department of Pharmaceutics, Huaihe Hospital Affiliated with Henan University, No. 1 Baobei Road, Kaifeng 475000, PR China
| | - Xiaoyong Song
- Department of Pharmaceutics, Huaihe Hospital Affiliated with Henan University, No. 1 Baobei Road, Kaifeng 475000, PR China.
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Dalaty AA, Karam A, Najlah M, Alany RG, Khoder M. Effect of non-cross-linked calcium on characteristics, swelling behaviour, drug release and mucoadhesiveness of calcium alginate beads. Carbohydr Polym 2015; 140:163-70. [PMID: 26876840 DOI: 10.1016/j.carbpol.2015.12.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/15/2015] [Accepted: 12/06/2015] [Indexed: 01/30/2023]
Abstract
In this study, ibuprofen-loaded calcium alginate beads (CABs) with varying amounts of non-cross-linked calcium (NCL-Ca) were prepared using different washing methods. The influence of NCL-Ca on beads properties was investigated. Increasing the number or duration of washes led to significant decreases in the amount of NCL-Ca whereas the impact of the volume of washes was not significant. Approximately 70% of the initial amount of Ca(2+) was NCL-Ca which was removable by washing while only 30% was cross-linked (CL-Ca). Ca(2+) release from the CABs was bimodal; NCL-Ca was burst-released followed by a slower release of CL-Ca. Washing methods and the amount of NCL-Ca had significant influences on the encapsulation efficiency, beads weight, beads swelling, drug release profile and the mucoadhesiveness of CABs. This study highlighted the importance of washing methods and the amount of NCL-Ca to establish CABs properties and understand their behaviour in the simulated intestinal fluids (SIFs).
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Affiliation(s)
| | - Ayman Karam
- University Al Baath, Faculty of Pharmacy, Homs, Syria; Institut de Chimie des Milieux et Matériaux de Poitiers, CNRS, Université de Poitiers/ENSIP, 1 rue Marcel Doré, 86073 Poitiers Cedex, France
| | - Mohammad Najlah
- Faculty of Medical Science, Anglia Ruskin University, Bishops Hall Lane, Chelmsford CM1 1SQ, United Kingdom
| | - Raid G Alany
- School of Pharmacy and Chemistry, Faculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, Kingston upon Thames KT1 2EE, Surrey, United Kingdom; School of Pharmacy, The University of Auckland, Auckland, New Zealand
| | - Mouhamad Khoder
- University Al Baath, Faculty of Pharmacy, Homs, Syria; School of Pharmacy and Chemistry, Faculty of Science, Engineering and Computing, Kingston University, Penrhyn Road, Kingston upon Thames KT1 2EE, Surrey, United Kingdom.
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14
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Patel BB, Patel JK, Chakraborty S. A Systematic Approach to Design and Prepare Poly(meth)acrylate Based Solid Dispersions of Poorly Water-soluble Drug by Spray Drying. PARTICULATE SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1080/02726351.2015.1016643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Jablan J, Jug M. Development of Eudragit® S100 based pH-responsive microspheres of zaleplon by spray-drying: Tailoring the drug release properties. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.05.045] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Patel BB, Patel JK, Chakraborty S. Solubility enhancement using poly(meth)acrylate based solid dispersions. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.10.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Rapid preparation of pH-sensitive polymeric nanoparticle with high loading capacity using electrospray for oral drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2013; 33:4562-7. [DOI: 10.1016/j.msec.2013.07.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2013] [Revised: 07/08/2013] [Accepted: 07/10/2013] [Indexed: 11/19/2022]
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18
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Liu W, Selomulya C, Chen XD. Design of polymeric microparticles for pH-responsive and time-sustained drug release. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2013.10.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Ochiuz L, Popa G, Stoleriu I, Tomoiagă AM, Popa M. Microencapsulation of Metoprolol Tartrate into Chitosan for Improved Oral Administration and Patient Compliance. Ind Eng Chem Res 2013. [DOI: 10.1021/ie402625h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Lăcrămioara Ochiuz
- Department of Pharmaceutical
Technology, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa”, Universitatii Street, no. 16, 700115 Iasi, Romania
| | - Graţiela Popa
- Department of Pharmaceutical
Technology, Faculty of Pharmacy, University of Medicine and Pharmacy “Grigore T. Popa”, Universitatii Street, no. 16, 700115 Iasi, Romania
| | - Iulian Stoleriu
- The
Faculty of Mathematics, “Alexandru Ioan Cuza” from
Iasi, 11, Carol I Bd, 700506 Iasi, Romania
| | - Alina Maria Tomoiagă
- Department
of Materials Chemistry and Chemical Technology, Faculty of Chemistry, University “Alexandru Ioan Cuza” from Iasi, 11, Carol I Bd, 700506 Iasi, Romania
| | - Marcel Popa
- ”Gh. Asachi” Technical University of Iasi, Department of Natural and Synthetic Polymers, D. Mangeron Bd., 71A, 700050 Iasi, Romania
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20
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Varum F, Hatton G, Freire A, Basit A. A novel coating concept for ileo-colonic drug targeting: Proof of concept in humans using scintigraphy. Eur J Pharm Biopharm 2013; 84:573-7. [DOI: 10.1016/j.ejpb.2013.01.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 12/09/2012] [Accepted: 01/03/2013] [Indexed: 11/24/2022]
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Therapeutic strategies based on polymeric microparticles. J Biomed Biotechnol 2012; 2012:672760. [PMID: 22665988 PMCID: PMC3363323 DOI: 10.1155/2012/672760] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 02/28/2012] [Accepted: 03/13/2012] [Indexed: 01/06/2023] Open
Abstract
The development of the field of materials science, the ability to perform multidisciplinary scientific work, and the need for novel administration technologies that maximize therapeutic effects and minimize adverse reactions to readily available drugs have led to the development of delivery systems based on microencapsulation, which has taken one step closer to the target of personalized medicine. Drug delivery systems based on polymeric microparticles are generating a strong impact on preclinical and clinical drug development and have reached a broad development in different fields supporting a critical role in the near future of medical practice. This paper presents the foundations of polymeric microparticles based on their formulation, mechanisms of drug release and some of their innovative therapeutic strategies to board multiple diseases.
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