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Hashemi P, Osanloo M, Farjadfar A, Nasiri-Ghiri M, Zarenezhad E, Mahmoodi S. A multi-epitope protein vaccine encapsulated in alginate nanoparticles as a candidate vaccine against Shigella sonnei. Sci Rep 2024; 14:22484. [PMID: 39341926 PMCID: PMC11438873 DOI: 10.1038/s41598-024-73105-4] [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: 05/11/2024] [Accepted: 09/13/2024] [Indexed: 10/01/2024] Open
Abstract
Shigellosis, caused by the Gram-negative bacterium Shigella, is a major global health challenge. Despite extensive research over the past two decades, no commercial vaccine is available to prevent Shigella infection. Developing multi-epitope vaccines offers a promising and innovative approach to tackling infectious diseases. In this study, we produced a multi-epitope vaccine candidate using E. coli BL21 (DE3) plysS bacteria and purified the vaccine protein with Ni-NTA affinity chromatography. We then prepared alginate nanoparticles containing the vaccine protein, with a particle size of 122 ± 6 nm, PDI 0.17, SPAN 0.83, and zeta potential of -27 ± 2 mV. Successful protein loading was confirmed through nanodrop and ATR-FTIR analyses. To evaluate the immunogenicity of the encapsulated vaccine, mice were orally vaccinated, and their serum was analyzed for IgG, IL-4, and IFN-γ levels cytokines. The results showed a significant increase in IgG level in the vaccinated group compared to controls. Additionally, the vaccinated group exhibited a notable increase in IL-4 and IFN-γ cytokines, indicating a robust Th-cell-mediated immune response essential for combating Shigella. Our nano-vaccine demonstrated high efficacy in activating both humoral and cellular immunity, effectively protecting against the bacteria. The alginate-based oral vaccine candidate thus emerges as a promising strategy for developing a multi-epitope vaccine candidate against Shigella.
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Affiliation(s)
- Parisa Hashemi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Mahmoud Osanloo
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Akbar Farjadfar
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Mahdi Nasiri-Ghiri
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran
| | - Elham Zarenezhad
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
| | - Shirin Mahmoodi
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Fasa University of Medical Sciences, Fasa, Iran.
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Darwish MM, Elneklawi MS, Mohamad EA. Aloe Vera coated Dextran Sulfate/Chitosan nanoparticles (Aloe Vera @ DS/CS) encapsulating Eucalyptus essential oil with antibacterial potent property. JOURNAL OF BIOMATERIALS SCIENCE, POLYMER EDITION 2022; 34:810-827. [PMID: 36369795 DOI: 10.1080/09205063.2022.2145869] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The goal of this work is to encapsulate Eucalyptus staigeriana essential oil in biopolymer matrices, to optimize the biological effects and the antibacterial properties of this oil. In this study, Eucalyptus extract was encapsulated in Aloe Vera coated Dextran Sulfate/Chitosan nanoparticles to form a hydrogel with potent properties. In this study, Eucalyptus extract was loaded on to Aloe Vera coated Dextran Sulphate/Chitosan nanoparticles to obtain a nano-hydrogel with potent properties. The characterization of nanoparticles was evaluated using transmission and scanning electron microscopes, dynamic light scattering, Fourier transform infrared spectroscopy, differential scanning calorimetry and antibacterial activity. The E. staigeriana release profile from the prepared nanoparticles was studied in vitro at a pH of 7.4. The results showed that this nano-carrier controls Eucalyptus release. Aloe Vera coated Dextran Sulfate/Chitosan nanoparticles encapsulated with E. staigeriana inhibited the bacteria by 47.27%. These investigations concluded that E. staigeriana loaded Aloe Vera coated Dextran Sulfate/Chitosan hydrogel could be used as a powerful dressing material to accelerate wound healing.
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Affiliation(s)
- Mirhane Mostafa Darwish
- Biophysics Department, Faculty of Science, Cairo University, Cairo University St., Giza, Egypt.
| | - Mona S Elneklawi
- Biomedical Equipment Department, Faculty of Applied Medical Sciences, October 6 University, 6th of October City, Giza, Egypt
| | - Ebtesam A Mohamad
- Biophysics Department, Faculty of Science, Cairo University, Cairo University St., Giza, Egypt.
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Molino S, Rufián Henares JÁ, Gómez-Mascaraque LG. Tannin-rich extracts improve the performance of amidated pectin as an alternative microencapsulation matrix to alginate. Curr Res Food Sci 2022; 5:243-250. [PMID: 35146441 PMCID: PMC8801355 DOI: 10.1016/j.crfs.2022.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 11/20/2022] Open
Abstract
Microencapsulation of tannin extracts through extrusion-gelation method was performed comparing two alternative encapsulation matrices: alginate and amidated pectin. The microstructure of the generated microbeads was studied, as well as their microencapsulation efficiency and release properties. Overall, pectin-based beads performed better than their alginate-based counterparts. This, combined with a greater incorporation of tannins in the feed formulations led to a higher tannin load in the final beads. The best microencapsulation efficiency was given by pectin microbeads loaded with 10% tannin extract (w/w), but the final tannin content could be further increased by adding a 20% (w/w) concentration of the extracts. During a 14-days storage, only a marginal loss of tannins was recorded for pectin-based microbeads. The results reveal that great potential exists in producing pectin-based microbeads in presence of tannins, which allow better loading capacities and improving structural properties, thanks to the interactions between the tannins and the amidated polysaccharide.
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Affiliation(s)
- Silvia Molino
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
| | - José Ángel Rufián Henares
- Departamento de Nutrición y Bromatología, Instituto de Nutrición y Tecnología de Alimentos, Centro de Investigación Biomédica, Universidad de Granada, Granada, Spain
- Instituto de Investigación Biosanitaria Ibs.GRANADA, Universidad de Granada, Granada, Spain
| | - Laura G. Gómez-Mascaraque
- Food Chemistry and Technology Department, Teagasc Moorepark Food Research Centre, Fermoy, Co. Cork, P61 C996, Ireland
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Kaur I, Agnihotri S, Goyal D. Fabrication of chitosan-alginate nanospheres for controlled release of cartap hydrochloride. NANOTECHNOLOGY 2021; 33:025701. [PMID: 34614488 DOI: 10.1088/1361-6528/ac2d4c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
Insecticide cartap hydrochloride (C) was fabricated as nanospheres by a two-step method of ionic gelification and polyelectrolyte complexation of alginate (ALG) and chitosan (CS) to undermine its adverse effects on environment. Nanospheres were characterized by field emission scanning electron microscope, Fourier transform infrared spectra and x-ray diffraction. The size of cartap hydrochloride entrapped chitosan alginate nanospheres (C-CS-ALG nps) was in range of 107.58-173.07 nm. Cartap hydrochloride nanospheres showed encapsulation efficiency of 76.19% and were stable for 30 d at ambient temperature. Release of cartap from nanospheres fitted best with first order linear kinetics followed by Hixson and Higuchi model suggesting super case II transport release. With the application of such control release nanoformulations, it is possible to reduce the frequency of field application of insecticide due to its slow release to the target organism, which is economical as well as environmentally safe.
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Affiliation(s)
- Ishtpreet Kaur
- Department of Biotechnology, Thapar Institute of Engineering & Technology (Deemed to be University), Patiala, 147001, Punjab, India
| | - Shekhar Agnihotri
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat-131028, Haryana, India
| | - Dinesh Goyal
- Department of Biotechnology, Thapar Institute of Engineering & Technology (Deemed to be University), Patiala, 147001, Punjab, India
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Supachawaroj N, Damrongrungruang T, Limsitthichaikoon S. Formulation development and evaluation of lidocaine hydrochloride loaded in chitosan-pectin-hyaluronic acid polyelectrolyte complex for dry socket treatment. Saudi Pharm J 2021; 29:1070-1081. [PMID: 34588852 PMCID: PMC8463479 DOI: 10.1016/j.jsps.2021.07.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 07/04/2021] [Indexed: 12/31/2022] Open
Abstract
The main purpose of this study was to assess a lidocaine hydrochloride-loaded chitosan-pectin-hyaluronic polyelectrolyte complex for rapid onset and sustained release in dry socket wound treatment. Nine formulations (LCs) of lidocaine hydrochloride (LH) loaded into a chitosan–pectin–hyaluronic polyelectrolyte complex (PEC) were assessed using full factorial design (two factors × three levels). The formulations ranged between 4 and 10% w/w LH and 0.5–1.5% w/w HA. The following physicochemical properties of LCs were characterized: size, zeta potential, % entrapment efficiency, viscosity, mucoadhesiveness, % drug release, morphology, storage stability, and cytotoxicity. The particle size, zeta potential, % EE, viscosity, and % mucoadhesion increased with increasing LH and HA concentrations. Rapid release of LH followed a zero-order model, and a steady-state percentage of the drug was released over 4 h. LCs were found to be non-cytotoxic compared to LH solution. LH loaded into PEC demonstrated appropriate characteristics—including suitable rate of release—and fit a zero-order model. Furthermore, it was not cytotoxic and showed good stability in a high-HA formula, making it a promising candidate for future topical oral formulations.
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Affiliation(s)
- Nuttawut Supachawaroj
- Department of Pharmaceutical Technology, College of Pharmacy, Rangsit University, Thailand.,Department of Oral Surgery, College of Dental Medicine, Rangsit University, Thailand
| | - Teerasak Damrongrungruang
- Division of Oral Diagnosis, Department of Oral Biomedical Science, Faculty of Dentistry, Khon Kaen University, Thailand
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Türkyılmaz M, Hamzaoğlu F, Özkan M. Effects of pasteurization and storage on turbidity and copigmentation in pomegranate juices clarified with various hydrocolloid combinations. Food Chem 2021; 358:129803. [PMID: 33945932 DOI: 10.1016/j.foodchem.2021.129803] [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] [Received: 11/30/2020] [Revised: 03/15/2021] [Accepted: 03/27/2021] [Indexed: 11/25/2022]
Abstract
Success of clarification treatment in pomegranate juice is related to prevention of after-bottling haze formation and high anthocyanin content after pasteurization and during storage. Therefore, this study was conducted to achieve these targets with hydrocolloid [albumin (A), casein (C), chitosan (CH) and xanthan gum (XG)] combinations. While C, "A + XG" and "A + C" resulted in the greatest clarity after pasteurization, "A + C" and "A + C + CH" were associated with the greatest clarity during storage. In comparison with "A + C + CH" (k = 0.053 week-1), "A + C" (k = 0.065 week-1) was associated with more rapid improvement in clarity (23%). Greater clarity of "A + C" was associated with reductions in contents of punicalagins (r = -0.963), gallic (r = -0.936), chlorogenic (r = -0.995) and ellagic (r = -0.989) acids. However, "A + C + CH" clarity was associated with fewer proteins. Since copigmentation occurred between anthocyanins and phenolics, "A + C" enhanced colour density stability better (1.1 times) than "A + C + CH." Therefore, "A + C" is recommended producing pomegranate juice with high clarity and colour density after pasteurization and during storage.
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Affiliation(s)
- Meltem Türkyılmaz
- Institute of Food Safety, Ankara University, Diskapi 06110, Ankara, Turkey.
| | - Fatmagül Hamzaoğlu
- Department of Food Engineering, Faculty of Engineering, Ankara University, 50. Yıl Campus, Golbasi, Ankara 06830, Turkey.
| | - Mehmet Özkan
- Department of Food Engineering, Faculty of Engineering, Ankara University, 50. Yıl Campus, Golbasi, Ankara 06830, Turkey.
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Yang L, Wang S, Ma Q, Song Z, Hou R, Huang S, Cheng D, Zhang Z. Fabrication of sulfoxaflor-loaded natural polysaccharide floating hydrogel microspheres against Nilaparvata lugens (Stal) in rice fields. PEST MANAGEMENT SCIENCE 2020; 76:3046-3055. [PMID: 32279438 DOI: 10.1002/ps.5855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/03/2020] [Accepted: 04/12/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Nilaparvata lugens (Stal) nymphs and adults aggregate and feed on leaf sheaths at the base of rice plants. It is difficult to apply traditional spray treatments directly onto the plant stems due to the blocking agent produced by leaves. Further, spiders and mirids, the natural enemies of N. lugens (Stal), are directly exposed to the chemicals during spraying. Sulfoxaflor-loaded natural polysaccharide microspheres with good performance were developed and tested in rice fields. The absorption, distribution, and dissipation of sulfoxaflor in rice plants, soil, and water were examined. RESULTS Sulfoxaflor-loaded natural polysaccharide microspheres were prepared through physical embedding and ionic crosslinking, using citronellol as an oil phase to provide floatation. The sustained release of sulfoxaflor was achieved through swelling and dissolution, indicating that these structures could effectively control pesticide release. Field experiments showed that these microspheres were able to float in water and gather around the stem of rice plants and that their insecticidal effect was remarkably improved compared to that achieved using the suspension concentrate. Results also showed that the residual content of stems following treatment with sulfoxaflor-loaded natural polysaccharide microspheres reached 0.331 mg kg-1 , but was reduced in other parts of the plant. CONCLUSION In the present study, sulfoxaflor-loaded natural polysaccharide microspheres with optimized properties were successfully prepared. These microspheres produced a better control effect on N. lugens (Stal) compared to the use of the sulfoxaflor suspension concentrate. Their application may help promote the scientific control of target pests in rice fields. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Liupeng Yang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Shiying Wang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Qianli Ma
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Zixia Song
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Ruiquan Hou
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
| | - Suqing Huang
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Dongmei Cheng
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, China
| | - Zhixiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou, China
- Guangdong Biological Pesticide Engineering Technology Research Center, South China Agricultural University, Guangzhou, China
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Klivenko A, Orazzhanova L, Mussabayeva B, Yelemessova G, Kassymova Z. Soil structuring using interpolyelectrolyte complexes of water‐soluble polysaccharides. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.5053] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Türkyılmaz M, Hamzaoğlu F, Özkan M. Combined use of hydrocolloids in pomegranate juice and their effects on clarification and copigmentation. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14409] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Meltem Türkyılmaz
- Institute of Food Safety Ankara University Diskapi 06110 Ankara Turkey
| | - Fatmagül Hamzaoğlu
- Department of Food Engineering Faculty of Engineering Ankara University Golbasi, Ankara 06830 Turkey
| | - Mehmet Özkan
- Department of Food Engineering Faculty of Engineering Ankara University Golbasi, Ankara 06830 Turkey
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Shamekhi F, Tamjid E, Khajeh K. Development of chitosan coated calcium-alginate nanocapsules for oral delivery of liraglutide to diabetic patients. Int J Biol Macromol 2018; 120:460-467. [PMID: 30125628 DOI: 10.1016/j.ijbiomac.2018.08.078] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2018] [Revised: 07/13/2018] [Accepted: 08/15/2018] [Indexed: 01/09/2023]
Abstract
Chitosan coated calcium-alginate nanocapsules were developed for oral sustained delivery of liraglutide. The effect of coating components including sodium alginate, calcium chloride, and chitosan concentrations on the particle size was studied based on response surface methodology. The beads were characterized by dynamic light scattering, scanning and transmission electron microscopy as well as Fourier transform infrared spectroscopy. It was shown that the diameter of the formed beads was most dependent on the encapsulation technique and alginate concentration. SEM revealed spherical and smooth particles of up to 100 nm diameter for the optimum composition of alginate 0.5%, chitosan 0.5% and calcium chloride 0.5% in the volume ratio of 3:1:1. The resulting bead formulation had a loading efficiency of 92.5% and loading capacity of 54.16%. The nanocapsules exhibited stability of 92.4% and 72.3% over freeze drying and subsequent 60 days storage at 4 °C, respectively. In-vitro release studies in simulated gastrointestinal conditions were carried out in a sequential technique and the amount of drug release was found to be 59.1% after 6 h. The results of this study demonstrated that chitosan coated calcium-alginate nanocapsules hold promise as a potential natural biodegradable polymer-based oral carrier of liraglutide for better management of diabetes.
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Affiliation(s)
- Fatemeh Shamekhi
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Elnaz Tamjid
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Khosro Khajeh
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran; Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
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Nur M, Vasiljevic T. Insulin Inclusion into a Tragacanth Hydrogel: An Oral Delivery System for Insulin. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E79. [PMID: 29304023 PMCID: PMC5793577 DOI: 10.3390/ma11010079] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 12/29/2017] [Accepted: 01/03/2018] [Indexed: 12/18/2022]
Abstract
Nanoparticles or microparticles created by physical complexation between two polyelectrolytes may have a prospective use as an excipient for oral insulin administration. Natural polymers such as tragacanth, alginate, dextran, pullulan, hyaluronic acid, gelatin and chitosan can be potential candidates for this purpose. In this research, insulin particles were prepared by the inclusion of insulin into a tragacanth hydrogel. The effect of the pH and concentration relationship involving polyelectrolytes offering individual particle size and zeta potential was assessed by zetasizer and scanning electron microscopy (SEM). Insulin-tragacanth interactions at varying pH (3.7, 4.3, 4.6, or 6), and concentration (0.1%, 0.5%, or 1% w/w) were evaluated by differential scanning calorimetry (DSC) and ATR Fourier transform infrared (ATR-FTIR) analysis. Individual and smaller particles, approximately 800 nm, were acquired at pH 4.6 with 0.5% of tragacanth. The acid gelation test indicated that insulin could be entrapped in the physical hydrogel of tragacanth. DSC thermograms of insulin-tragacanth showed shifts on the same unloaded tragacanth peaks and suggested polyelectrolyte-protein interactions at a pH close to 4.3-4.6. FTIR spectra of tragacanth-insulin complexes exhibited amide absorption bands featuring in the protein spectra and revealed the creation of a new chemical substance.
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Affiliation(s)
- Mokhamad Nur
- Advanced Food Systems Research Unit, College of Health and Biomedicine, Victoria University, PO Box 14428, Melbourne 8001, Australia.
- Department of Agricultural Product Technology, Faculty of Agricultural Technology, Brawijaya University, Jl. Veteran, Malang 65145, Indonesia.
| | - Todor Vasiljevic
- Advanced Food Systems Research Unit, College of Health and Biomedicine, Victoria University, PO Box 14428, Melbourne 8001, Australia.
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Kassem AA, Issa DAE, Kotry GS, Farid RM. Thiolated alginate-based multiple layer mucoadhesive films of metformin forintra-pocket local delivery: in vitro characterization and clinical assessment. Drug Dev Ind Pharm 2016; 43:120-131. [PMID: 27589817 DOI: 10.1080/03639045.2016.1224895] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Periodontal disease broadly defines group of conditions in which the supportive structure of the tooth (periodontium) is destroyed. Recent studies suggested that the anti-diabetic drug metformin hydrochloride (MF) has an osteogenic effect and is beneficial for the management of periodontitis. OBJECTIVE Development of strong mucoadhesive multiple layer film loading small dose of MF for intra-pocket application. METHODOLOGY Multiple layer film was developed by double casting followed by compression method. Either 6% carboxy methyl cellulose sodium (CMC) or sodium alginate (ALG) constituted the inner drug (0.6%) loaded layer. Thiolated sodium alginate (TSA; 2 or 4%) constituted the outer drug free layers to enhance mucoadhesion and achieve controlled drug release. Optimized formulation was assessed clinically on 20 subjects. RESULTS Films were uniform, thin and hard enough for easy insertion into periodontal pockets. Based on water uptake and in vitro drug release, CMC based film with 4% TSA as an outer layer was the optimized formulation with enhanced mucoadhesion and controlled drug release (83.73% over 12 h). SEM showed the effective fabrication of the triple layer film in which connective lines between the layers could be observed. FTIR examination suggests possibility of hydrogen bonding between the -NH groups of metformin and -OH groups of CMC. DSC revealed the presence of MF mainly in the amorphous form. Clinical results indicated improvement of all clinical parameters six months post treatment. CONCLUSION The results suggested that local application of the mucoadhesive multiple layer films loaded with metformin hydrochloride was able to manage moderate chronic periodontitis.
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Affiliation(s)
- Abeer Ahmed Kassem
- a Department of Pharmaceutical Sciences, Faculty of Pharmacy , Princess Nourah bint Abdulrahman University , Riyadh , Saudi Arabia.,b Department of Pharmaceutics, Faculty of Pharmacy , Alexandria University , Alexandria , Egypt
| | - Doaa Ahmed Elsayed Issa
- c Department of Pharmaceutical Sciences, Faculty of Pharmacy , Beirut Arab University , Beirut , Lebanon.,d Department of Pharmaceutical Chemistry, Faculty of Pharmacy , Alexandria University , Alexandria , Egypt
| | - Gehan Sherif Kotry
- e Department of Oral Medicine, Periodontology, Oral Diagnosis and Radiology, Faculty of Dentistry , Alexandria University , Alexandria , Egypt
| | - Ragwa Mohamed Farid
- f Department of Pharmaceutics, Faculty of Pharmacy and Drug Manufacturing , Pharos University in Alexandria , Alexandria , Egypt
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Mooranian A, Negrulj R, Mathavan S, Martinez J, Sciarretta J, Chen-Tan N, Mukkur T, Mikov M, Lalic-Popovic M, Stojančević M, Golocorbin-Kon S, Al-Salami H. Stability and Release Kinetics of an Advanced Gliclazide-Cholic Acid Formulation: The Use of Artificial-Cell Microencapsulation in Slow Release Targeted Oral Delivery of Antidiabetics. J Pharm Innov 2014; 9:150-157. [PMID: 24829616 PMCID: PMC4013442 DOI: 10.1007/s12247-014-9182-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Introduction In previous studies carried out in our laboratory, a bile acid (BA) formulation exerted a hypoglycaemic effect in a rat model of type-1 diabetes (T1D). When the antidiabetic drug gliclazide (G) was added to the bile acid, it augmented the hypoglycaemic effect. In a recent study, we designed a new formulation of gliclazide-cholic acid (G-CA), with good structural properties, excipient compatibility and exhibits pseudoplastic-thixotropic characteristics. The aim of this study is to test the slow release and pH-controlled properties of this new formulation. The aim is also to examine the effect of CA on G release kinetics at various pH values and different temperatures. Method Microencapsulation was carried out using our Buchi-based microencapsulating system developed in our laboratory. Using sodium alginate (SA) polymer, both formulations were prepared: G-SA (control) and G-CA-SA (test) at a constant ratio (1:3:30), respectively. Microcapsules were examined for efficiency, size, release kinetics, stability and swelling studies at pH 1.5, pH 3, pH 7.4 and pH 7.8 and temperatures of 20 and 30 °C. Results The new formulation is further optimised by the addition of CA. CA reduced microcapsule swelling of the microcapsules at pH 7.8 and pH 3 at 30 °C and pH 3 at 20 °C, and, even though microcapsule size remains similar after CA addition, percent G release was enhanced at high pH values (pH 7.4 and pH 7.8, p < 0.01). Conclusion The new formulation exhibits colon-targeted delivery and the addition of CA prolonged G release suggesting its suitability for the sustained and targeted delivery of G and CA to the lower intestine.
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Affiliation(s)
- Armin Mooranian
- Biotechnology and Drug Development Research Laboratory, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University, Perth, WA Australia
| | - Rebecca Negrulj
- Biotechnology and Drug Development Research Laboratory, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University, Perth, WA Australia
| | - Sangeetha Mathavan
- Biotechnology and Drug Development Research Laboratory, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University, Perth, WA Australia
| | - Jorge Martinez
- Curtin Health Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Curtin University, Perth, WA Australia
| | - Jessica Sciarretta
- Biotechnology and Drug Development Research Laboratory, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University, Perth, WA Australia
| | - Nigel Chen-Tan
- Faculty of Science & Engineering, Curtin University, Perth, WA Australia
| | - Tk Mukkur
- Curtin Health Innovation Research Institute, Biosciences Research Precinct, School of Biomedical Science, Curtin University, Perth, WA Australia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia ; Faculty of Pharmacy, University of Montenegro Podgorica, 8100 Podgorica, Montenegro
| | - Mladena Lalic-Popovic
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Maja Stojančević
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Svetlana Golocorbin-Kon
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia ; Faculty of Pharmacy, University of Montenegro Podgorica, 8100 Podgorica, Montenegro
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, Curtin Health Innovation Research Institute, Biosciences Research Precinct, Curtin University, Perth, WA Australia
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14
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Kassem AA, Ismail FA, Naggar VF, Aboulmagd E. Preparation and evaluation of periodontal films based onpolyelectrolyte complexformation. Pharm Dev Technol 2014; 20:297-305. [DOI: 10.3109/10837450.2013.862262] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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15
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Rekaby M, El-Hennawi H, Shahin A, Ragheb A. Utilization of biopolymer in resist printing of linen fabrics using reactive dyes. Carbohydr Polym 2013; 98:1540-6. [DOI: 10.1016/j.carbpol.2013.07.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 07/18/2013] [Accepted: 07/22/2013] [Indexed: 11/29/2022]
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16
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Singh K, Suri R, Tiwary AK, Rana V. Chitosan films: crosslinking with EDTA modifies physicochemical and mechanical properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2012; 23:687-95. [PMID: 22286228 DOI: 10.1007/s10856-012-4554-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Accepted: 01/11/2012] [Indexed: 05/23/2023]
Abstract
The present study was aimed to develop chitosan-EDTA films and evaluate their physico-chemical and mechanical properties. The physical properties suggested lowest swelling, volume and volume index of films prepared by employing equal weight of chitosan (CH) and EDTA (1.5% w/v). The CH:EDTA film (1:l, on weight basis) showed minimum contact angle, work of adhesion and high negative spreading coefficient indicating lipophilic behavior of film. Further, the FTIR and DSC analysis suggested maximum crosslinking density in film prepared with equal proportion of CH and EDTA. The mechanical properties explored using texture analyzer revealed increasing the proportions of EDTA rendered the films more flexible and decreased their hardness. Furthermore, in vitro permeation of 5-FU and mesalamine with different solubilities showed minimum permeation across CH–EDTA (1:1) film, indicating high crosslinking density that decreased void space inside the film. Hence, the CH–EDTA conjugate could be considered to be possess great potential for various pharmaceutical applications such as film based delivery systems, controlled and sustained delivery systems etc.
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Affiliation(s)
- Kuldeep Singh
- Pharmaceutics Division, Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
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17
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Al-Akayleh F, Al Remawi M, Rashid I, Badwan A. Formulation andIn vitroassessment of sustained release terbutaline sulfate tablet made from binary hydrophilic polymer mixtures. Pharm Dev Technol 2011; 18:1204-12. [DOI: 10.3109/10837450.2011.620968] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Moustafine RI, Salachova AR, Frolova ES, Kemenova VA, Van den Mooter G. Interpolyelectrolyte complexes of Eudragit® E PO with sodium alginate as potential carriers for colonic drug delivery: monitoring of structural transformation and composition changes during swellability and release evaluating. Drug Dev Ind Pharm 2009; 35:1439-51. [DOI: 10.3109/03639040902988574] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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19
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Zhang L, Liu Y, Wu Z, Chen H. Preparation and Characterization of Coacervate Microcapsules for the Delivery of Antimicrobial Oyster Peptides. Drug Dev Ind Pharm 2009; 35:369-78. [DOI: 10.1080/03639040802369255] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Srinatha A, Pandit JK. Alternate Polyelectrolyte Coating of Chitosan Beads for Extending Drug Release. Drug Deliv 2008; 15:193-9. [DOI: 10.1080/10717540801952654] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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21
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Willenberg BJ, Hamazaki T, Meng FW, Terada N, Batich C. Self-assembled copper-capillary alginate gel scaffolds with oligochitosan support embryonic stem cell growth. J Biomed Mater Res A 2007; 79:440-50. [PMID: 16941595 DOI: 10.1002/jbm.a.30942] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Biomaterial scaffolds are fundamental components of strategies aimed at engineering a wide range of tissues. Scaffolds possessing uniform, oriented microtubular architectures could be ideal for multiple tissues, but are challenging to produce. Therefore, we developed hydrogel scaffolds possessing regular, tubular microstructures from self-assembled copper-capillary alginate gel (CCAG). To abrogate the rapid dissolution of CCAG in cell culture media, we treated it with oligochitosan and created a stable oligochitosan-CCAG (OCCAG) polyelectrolyte complex. Fourier transform infrared spectroscopy confirmed polyelectrolyte complexation between alginate and oligochitosan. OCCAG retained capillary morphology, shrank anisotropically in bulk, lost Cu(2+) ions, and maintained (71.9 +/- 5.65)% of its mass in cell culture media. Next, we seeded mouse embryonic stem (ES) cells within OCCAG scaffolds, and examined cell morphology and quantified cell growth and viability over four days. ES cells were guided to form cylindrical structures of staggered cells within scaffold capillaries. Analysis of the total cells recovered from the scaffolds revealed exponential cell growth (normalized to day 0) that was statistically similar to gelatinized-plate controls. OCCAG-cultured ES cell viability was also not significantly different from controls at day 4. CCAG-derived scaffolds can therefore serve as a unique platform for stem cell-based tissue engineering.
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Affiliation(s)
- Bradley J Willenberg
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida College of Medicine, Gainesville, 32610, USA
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Sarmento B, Martins S, Ribeiro A, Veiga F, Neufeld R, Ferreira D. Development and Comparison of Different Nanoparticulate Polyelectrolyte Complexes as Insulin Carriers. Int J Pept Res Ther 2006. [DOI: 10.1007/s10989-005-9010-3] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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24
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Fukuda M, Peppas NA, McGinity JW. Properties of sustained release hot-melt extruded tablets containing chitosan and xanthan gum. Int J Pharm 2006; 310:90-100. [PMID: 16413153 DOI: 10.1016/j.ijpharm.2005.11.042] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2005] [Revised: 11/18/2005] [Accepted: 11/23/2005] [Indexed: 11/16/2022]
Abstract
The aim of this study was to investigate the influence of pH, buffer species and ionic strength on the release mechanism of chlorpheniramine maleate (CPM) from matrix tablets containing chitosan and xanthan gum prepared by a hot-melt extrusion process. Drug release from hot-melt extruded (HME) tablets containing either chitosan or xanthan gum was pH and buffer species dependent and the release mechanisms were controlled by the solubility and ionic properties of the polymers. All directly compressed (DC) tablets prepared in this study also exhibited pH and buffer species dependent release. In contrast, the HME tablets containing both chitosan and xanthan gum exhibited pH and buffer species independent sustained release. When placed in 0.1N HCl, the HME tablets formed a hydrogel that functioned to retard drug release in subsequent pH 6.8 and 7.4 phosphate buffers even when media contained high ionic strength, whereas tablets without chitosan did not form a hydrogel to retard drug release in 0.1N HCl. The HME tablets containing both chitosan and xanthan gum showed no significant change in drug release rate when stored at 40 degrees C for 1 month, 40 degrees C and 75% relative humidity (40 degrees C/75% RH) for 1 month, and 60 degrees C for 15 days.
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Affiliation(s)
- Mamoru Fukuda
- Division of Pharmaceutics, College of Pharmacy, The University of Texas at Austin, 78712, USA.
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Shenoy DB, Sukhorukov GB. Microgel-Based Engineered Nanostructures and Their Applicability with Template-Directed Layer-by-Layer Polyelectrolyte Assembly in Protein Encapsulation. Macromol Biosci 2005; 5:451-8. [PMID: 15889391 DOI: 10.1002/mabi.200400180] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A novel strategy for the fabrication of microcapsules is elaborated by employing biomacromolecules and a dissolvable template. Calcium carbonate (CaCO(3)) microparticles were used as sacrificial templates for the two-step deposition of polyelectrolyte coatings by surface controlled precipitation (SCP) followed by the layer-by-layer (LbL) adsorption technique to form capsule shells. When sodium alginate was used for inner shell assembly, template decomposition with an acid resulted in simultaneous formation of microgel-like structures due to calcium ion-induced gelation. An extraction of the calcium after further LbL treatment resulted in microcapsules filled with the biopolymer. The hollow as well as the polymer-filled polyelectrolyte capsules were characterized using confocal laser scanning microscopy (CLSM), scanning electron microscopy (SEM), and scanning force microscopy (SFM). The results demonstrated multiple functionalities of the CaCO(3) core - as supporting template, porous core for increased polymer accommodation/immobilization, and as a source of shell-hardening material. The LbL treatment of the core-inner shell assembly resulted in further surface stabilization of the capsule wall and supplementation of a nanostructured diffusion barrier for encapsulated material. The polymer forming the inner shell governs the chemistry of the capsule interior and could be engineered to obtain a matrix for protein/drug encapsulation or immobilization. The outer shell could be used to precisely tune the properties of the capsule wall and exterior. [Diagram: see text] Confocal laser scanning microscopy (CLSM) image of microcapsules (insert is after treating with rhodamine 6G to stain the capsule wall).
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Affiliation(s)
- Dinesh B Shenoy
- Max Planck Institute of Colloids and Interfaces, D-14424, Potsdam/Golm, Germany
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Moustafine RI, Kemenova VA, Van den Mooter G. Characteristics of interpolyelectrolyte complexes of Eudragit E 100 with sodium alginate. Int J Pharm 2005; 294:113-20. [PMID: 15814235 DOI: 10.1016/j.ijpharm.2005.01.029] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2004] [Revised: 01/05/2005] [Accepted: 01/17/2005] [Indexed: 11/26/2022]
Abstract
With a view to the application in oral drug delivery formulations, the possibility to form interpolyelectrolyte complexes (IPEC) of Eudragit E 100 (EE) with sodium alginate (AL) was investigated, employing turbidimetry, apparent viscosity measurements, FT-IR and elementary analysis. The interaction or binding ratio of a unit molecule of AL with EE was largely affected by the pH value of the media, showing a change from 1.5:1 to 1:1.25 (0.66<Z<1.25) with increase in pH value from 2.5 to 6.0. Based on the results of elementary analysis and FT-IR, the interaction ratio of each component in the solid complexes was very close to that observed in turbidity and apparent viscosity measurements thus proving that the synthesized products actually can be considered as IPEC.
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Affiliation(s)
- R I Moustafine
- Department of Pharmaceutical Chemistry, State Medical University of Kazan, Kazan, Russia
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Moustafine RI, Kabanova TV, Kemenova VA, Van den Mooter G. Characteristics of interpolyelectrolyte complexes of Eudragit E100 with Eudragit L100. J Control Release 2005; 103:191-8. [PMID: 15710510 DOI: 10.1016/j.jconrel.2004.11.031] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2004] [Revised: 11/23/2004] [Accepted: 11/23/2004] [Indexed: 11/26/2022]
Abstract
With a view to the application in oral controlled drug delivery systems, the formation of interpolyelectrolyte complexes (IPEC) between Eudragit E100 (EE) and Eudragit L100 (EL) was investigated, using turbidimetry, solution viscosity measurements and elementary analysis. The structure of the synthesized IPEC was investigated by using FT-IR spectroscopy. The binding ratio of a unit molecule of EL with EE was found to be approximately 1:1 in pH 6.0. Based on the results of elementary analysis, and FT-IR, the binding ratio of each component in the solid complexes was very close to that observed in turbidity and viscosity measurements and indicate that the synthesized products can be considered as IPEC. Due to the structure of the IPEC, two maxima were observed in the swelling behaviour as a function of pH. The release of the model drug ibuprofen was significantly retarded from tablets made up of the IPEC.
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Affiliation(s)
- R I Moustafine
- Department of Pharmaceutical Chemistry, State Medical University of Kazan, Kazan, Russia
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Bayomi MA. Aqueous Preparation and Evaluation of Albumin‐Chitosan Microspheres Containing Indomethacin. Drug Dev Ind Pharm 2004; 30:329-39. [PMID: 15132175 DOI: 10.1081/ddc-120030425] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Controlled-release egg albumin-chitosan microspheres containing indomethacin as a model drug were successfully prepared by coacervation method. The proposed method can offer a simple method for microsphere preparation in an aqueous system with the elimination of the use of organic solvents that are usually needed in conventional techniques of microencapsulation. The interaction between negatively charged egg albumin molecules in phosphate buffer, pH 7.2, or sodium hydroxide solution and positively charged chitosan molecules dissolved in diluted acetic acid to form an insoluble precipitate was the principle for the formation of the microspheres. The effects of many process variables, such as amount of formaldehyde as a cross-linking agent, stirring time, final pH of encapsulation medium, initial drug loading, and albumin concentration or albumin-to-chitosan weight ratio, on the properties of the prepared microspheres were investigated. Incorporation efficiencies of the microspheres to the drug were high in most cases and ranged between 63.3 +/- 3.6% and 92.39 +/- 3.2%, while particle sizes were 435.2 +/- 12.6 up to 693.9 +/- 34.6 microm for the different tested batches. On the other hand, the values of angles of repose and compressibility indices were in the range of 23.5 +/- 0.4 to 32.0 +/- 0.7 degrees and 11.1 +/- 0.7% to 23.6 +/- 0.7% respectively, which indicate overall good free flowing nature of the microspheres of all batches. The maximum required amount of the cross-linking agent was determined to avoid excessive unnecessary chemicals. It was also noticed that excessive time of stirring and excessive initial drug loading are not recommended as it may lead to microspheres of low properties. The pH of the encapsulation media (pH 3.77 up to pH 4.91) significantly affected the properties of the microspheres. As the pH of the encapsulation media was increased, the incorporation efficiency, particle size, and flowability decreased, along with increase of drug release rate, which could be related to incomplete cross linking of the microspheres matrix. It was also observed that high concentration of albumin solution and accordingly the increase of albumin-to-chitosan weight ratio were accompanied with increases in incorporation efficiency and particle size with improved microsphere flowability and slow indomethacin release. Thus, the proposed microspheres showed the ability to control the release of indomethacin, and their properties were highly affected by many process variables that could be controlled to obtain an optimized system.
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Affiliation(s)
- Mohsen A Bayomi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.
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