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Reys LL, Silva SS, Soares da Costa D, Reis RL, Silva TH. Fucoidan-based hydrogels particles as versatile carriers for diabetes treatment strategies. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1939-1954. [PMID: 35699411 DOI: 10.1080/09205063.2022.2088533] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
There is a current lack of fully efficient therapies for diabetes mellitus, a chronic disease where the metabolism of blood glucose is severely hindered by a deficit in insulin or cell resistance to this hormone. Therefore, it is crucial to develop new therapeutic strategies to treat this disease, including devices for the controlled delivery of insulin or encapsulation of insulin-producing cells. In this work, fucoidan (Fu) - a marine sulfated polysaccharide exhibiting relevant properties on reducing blood glucose and antioxidant and anti-inflammatory effects - was used for the development of versatile carriers envisaging diabetes advanced therapies. Fu was functionalized by methacrylation (MFu) using 8% and 12% (v/v) of methacrylic anhydride and further photocrosslinked using visible light in the presence of triethanolamine and eosin-y to produce hydrogel particles. Degree of methacrylation varied between 2.78 and 6.50, as determined by 1HNMR, and the produced particles have an average diameter ranging from 0.63 to 1.3 mm (dry state). Insulin (5%) was added to MFu solution to produce drug-loaded particles and the release profile was assessed in phosphate buffer solution (PBS) and simulated intestinal fluid (SIF) for 24 h. Insulin was released in a sustained manner during the initial 8 h, reaching then a plateau, higher in PBS than in SIF, indicating that lower pH favors drug liberation. Moreover, the ability of MFu particles to serve as templates for the culture of human pancreatic cells was assessed using 1.1B4 cell line during up to 7 days. During the culture period studied, pancreatic beta cells were proliferating, with a global viability over 80% and tend to form pseudo-islets, thus suggesting that the proposed biomaterial could be a good candidate as versatile carrier for diabetes treatment as they sustain the release of insulin and support pancreatic beta cells viability.
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Affiliation(s)
- Lara L Reys
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Simone S Silva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Diana Soares da Costa
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Rui L Reis
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
| | - Tiago H Silva
- 3B's Research Group, I3Bs - Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, Guimarães, Portugal.,ICVS/3B's - PT Government Associate Laboratory, Guimarães, Portugal
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2
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Wang H, Hu H, Zhang X, Zheng L, Ruan J, Cao J, Zhang X. Preparation, Physicochemical Characterization, and Antioxidant Activity of Naringin–Silk Fibroin–Alginate Microspheres and Application in Yogurt. Foods 2022; 11:foods11142147. [PMID: 35885390 PMCID: PMC9318321 DOI: 10.3390/foods11142147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/12/2022] [Accepted: 07/18/2022] [Indexed: 02/04/2023] Open
Abstract
Naringin is the major polyphenol in bitter orange peel with antioxidant property. However, its pH sensitivity, low solubility, and bitter taste limit its application in food. In this study, naringin–sodium alginate–silk fibroin microspheres were prepared by the ionic gel method. The loading capacity and encapsulation efficiency of naringin in microspheres were 13.2% and 77.6%, respectively. The morphology of microspheres was characterized by scanning electron microscopy. The X-ray diffractometry and differential scanning calorimetry results showed naringin was amorphous after encapsulation. Fourier-transform infrared spectroscopy and molecular docking analysis confirmed the intermolecular hydrogen bonds between naringin and sodium alginate. Naringin could release from the microspheres continuously under different pH conditions. Compared with free naringin, the 2,2-diphenyl-1-picrylhydrazyl scavenging activity and the stability of naringin microspheres were significantly improved. The application of naringin microspheres in yogurt indicated the precipitation of whey could be effectively reduced and the decline rate of pH was inhibited. The study suggested that naringin encapsulated microspheres were beneficial for improving the shelf life of this bioactive product as well as providing a new idea for functional yogurt.
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3
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Optimization and release characteristics of catechin-loaded calcium pectinate beads by internal gelation. Food Sci Biotechnol 2022; 31:1401-1409. [DOI: 10.1007/s10068-022-01126-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 06/02/2022] [Accepted: 06/27/2022] [Indexed: 11/04/2022] Open
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4
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Hurtado A, Aljabali AAA, Mishra V, Tambuwala MM, Serrano-Aroca Á. Alginate: Enhancement Strategies for Advanced Applications. Int J Mol Sci 2022; 23:ijms23094486. [PMID: 35562876 PMCID: PMC9102972 DOI: 10.3390/ijms23094486] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/14/2022] [Accepted: 04/17/2022] [Indexed: 02/06/2023] Open
Abstract
Alginate is an excellent biodegradable and renewable material that is already used for a broad range of industrial applications, including advanced fields, such as biomedicine and bioengineering, due to its excellent biodegradable and biocompatible properties. This biopolymer can be produced from brown algae or a microorganism culture. This review presents the principles, chemical structures, gelation properties, chemical interactions, production, sterilization, purification, types, and alginate-based hydrogels developed so far. We present all of the advanced strategies used to remarkably enhance this biopolymer’s physicochemical and biological characteristics in various forms, such as injectable gels, fibers, films, hydrogels, and scaffolds. Thus, we present here all of the material engineering enhancement approaches achieved so far in this biopolymer in terms of mechanical reinforcement, thermal and electrical performance, wettability, water sorption and diffusion, antimicrobial activity, in vivo and in vitro biological behavior, including toxicity, cell adhesion, proliferation, and differentiation, immunological response, biodegradation, porosity, and its use as scaffolds for tissue engineering applications. These improvements to overcome the drawbacks of the alginate biopolymer could exponentially increase the significant number of alginate applications that go from the paper industry to the bioprinting of organs.
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Affiliation(s)
- Alejandro Hurtado
- Biomaterials and Bioengineering Laboratory, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
| | - Alaa A. A. Aljabali
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Yarmouk University, Irbid 21163, Jordan;
| | - Vijay Mishra
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India;
| | - Murtaza M. Tambuwala
- School of Pharmacy and Pharmaceutical Science, Ulster University, Coleraine BT52 1SA, Northern Ireland, UK;
| | - Ángel Serrano-Aroca
- Biomaterials and Bioengineering Laboratory, Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, c/Guillem de Castro 94, 46001 Valencia, Spain;
- Correspondence:
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5
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From Biomedical Applications of Alginate towards CVD Implications Linked to COVID-19. Pharmaceuticals (Basel) 2022; 15:ph15030318. [PMID: 35337116 PMCID: PMC8955152 DOI: 10.3390/ph15030318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 02/28/2022] [Accepted: 03/04/2022] [Indexed: 12/12/2022] Open
Abstract
In the past year, researchers have focused their attention on developing new strategies for understanding how the coronavirus affects human health and developing novel biomaterials to help patients with cardiovascular disease, which greatly increases the risk of complications from the virus. Natural biopolymers have been investigated, and it has been proven that alginate-based materials have important features. This review presents an overview of alginate-based materials used for developing innovative biomaterial platforms for biomedical applications to mitigate the effects of the coronavirus. As presented in this review, COVID-19 affects the cardiovascular system, not only the lungs. The first part of the review presents an introduction to cardiovascular diseases and describes how they have become an important problem worldwide. In the second part of the review, the origin and unique properties of the alginate biopolymer are presented. Among the properties of alginate, the most important are its biocompatibility, biodegradability, low cost, nontoxicity, unique structure, and interesting features after chemical modification. The third section of the review illustrates some of the functions of alginate in biomedical, pharmaceutical, and drug delivery applications. Researchers are using alginate to develop new devices and materials for repairing heart tissues that have been damaged by the coronavirus. Further, insights regarding how cardiovascular disease affects COVID-19 patients are also discussed. Finally, we conclude the review by presenting a summary of the impacts of COVID-19 on cardiovascular patients, their implications, and several hypothetical alginate-based treatments for infected patients.
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Troy E, Tilbury MA, Power AM, Wall JG. Nature-Based Biomaterials and Their Application in Biomedicine. Polymers (Basel) 2021; 13:3321. [PMID: 34641137 PMCID: PMC8513057 DOI: 10.3390/polym13193321] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/09/2021] [Accepted: 09/17/2021] [Indexed: 02/07/2023] Open
Abstract
Natural polymers, based on proteins or polysaccharides, have attracted increasing interest in recent years due to their broad potential uses in biomedicine. The chemical stability, structural versatility, biocompatibility and high availability of these materials lend them to diverse applications in areas such as tissue engineering, drug delivery and wound healing. Biomaterials purified from animal or plant sources have also been engineered to improve their structural properties or promote interactions with surrounding cells and tissues for improved in vivo performance, leading to novel applications as implantable devices, in controlled drug release and as surface coatings. This review describes biomaterials derived from and inspired by natural proteins and polysaccharides and highlights their promise across diverse biomedical fields. We outline current therapeutic applications of these nature-based materials and consider expected future developments in identifying and utilising innovative biomaterials in new biomedical applications.
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Affiliation(s)
- Eoin Troy
- Microbiology, College of Science and Engineering, National University of Ireland, NUI Galway, H91 TK33 Galway, Ireland; (E.T.); (M.A.T.)
| | - Maura A. Tilbury
- Microbiology, College of Science and Engineering, National University of Ireland, NUI Galway, H91 TK33 Galway, Ireland; (E.T.); (M.A.T.)
- SFI Centre for Medical Devices (CÚRAM), NUI Galway, H91 TK33 Galway, Ireland
| | - Anne Marie Power
- Zoology, School of Natural Sciences, NUI Galway, H91 TK33 Galway, Ireland;
| | - J. Gerard Wall
- Microbiology, College of Science and Engineering, National University of Ireland, NUI Galway, H91 TK33 Galway, Ireland; (E.T.); (M.A.T.)
- SFI Centre for Medical Devices (CÚRAM), NUI Galway, H91 TK33 Galway, Ireland
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7
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Karp F, Satler FS, Busatto CA, Luna JA, Estenoz DA, Turino LN. Modulating drug release from poly(lactic‐co‐glycolic) acid microparticles by the addition of alginate and pectin. J Appl Polym Sci 2021. [DOI: 10.1002/app.50293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Federico Karp
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Florencia S. Satler
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Carlos A. Busatto
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Julio A. Luna
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Diana A. Estenoz
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
| | - Ludmila N. Turino
- Instituto de Desarrollo Tecnológico para la Industria Química INTEC (Universidad Nacional del Litoral and CONICET) Santa Fe Argentina
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8
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Teng K, An Q, Chen Y, Zhang Y, Zhao Y. Recent Development of Alginate-Based Materials and Their Versatile Functions in Biomedicine, Flexible Electronics, and Environmental Uses. ACS Biomater Sci Eng 2021; 7:1302-1337. [PMID: 33764038 DOI: 10.1021/acsbiomaterials.1c00116] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alginate is a natural polysaccharide that is easily chemically modified or compounded with other components for various types of functionalities. The alginate derivatives are appealing not only because they are biocompatible so that they can be used in biomedicine or tissue engineering but also because of the prospering bioelectronics that require various biomaterials to interface between human tissues and electronics or to serve as electronic components themselves. The study of alginate-based materials, especially hydrogels, have repeatedly found new frontiers over recent years. In this Review, we document the basic properties of alginate, their chemical modification strategies, and the recent development of alginate-based functional composite materials. The newly thrived functions such as ionically conductive hydrogel or 3D or 4D cell culturing matrix are emphasized among other appealing potential applications. We expect that the documentation of relevant information will stimulate scientific efforts to further develop biocompatible electronics or smart materials and to help the research domain better address the medicine, energy, and environmental challenges faced by human societies.
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Affiliation(s)
- Kaixuan Teng
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yao Chen
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Sciences and Technology, China University of Geosciences, Beijing 100083, China
| | - Yantao Zhao
- Institute of Orthopedics, Fourth Medical Center of the General Hospital of CPLA, Beijing 100048, China.,Beijing Engineering Research Center of Orthopedics Implants, Beijing 100048, China
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9
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Fuchs S, Ernst AU, Wang LH, Shariati K, Wang X, Liu Q, Ma M. Hydrogels in Emerging Technologies for Type 1 Diabetes. Chem Rev 2020; 121:11458-11526. [DOI: 10.1021/acs.chemrev.0c01062] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Stephanie Fuchs
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Alexander U. Ernst
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Long-Hai Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Kaavian Shariati
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Xi Wang
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Qingsheng Liu
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Minglin Ma
- Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States
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10
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Development and optimization of Fe 3+-crosslinked sodium alginate-methylcellulose semi-interpenetrating polymer network beads for controlled release of ibuprofen. Int J Biol Macromol 2020; 168:823-833. [PMID: 33242553 DOI: 10.1016/j.ijbiomac.2020.11.147] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/15/2020] [Accepted: 11/20/2020] [Indexed: 12/14/2022]
Abstract
In this study, ionically crosslinked beads of sodium alginate (NaAlg) and methylcellulose (MC) were prepared as semi-interpenetrating polymer networks (semi-IPN) in the size range of 1.97 ± 0.09-1.22 ± 0.13 mm by crosslinking with FeCl3 and loaded with ibuprofen (IBU), which is a nonsteroidal anti-inflammatory drug. The highest 93.33% entrapment efficiency of IBU was achieved, and the drug release behaviors, mean particle size, and entrapment efficiency of beads were investigated in terms of the polymer composition, a ratio of ibuprofen to polymer, exposure time to crosslinker, and concentration of the crosslinking agent. Semi-IPN formulations prepared were also characterized using Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry (DSC), X-ray Diffraction (X-RD), and scanning electron microscopy (SEM). It was observed that IBU-loaded beads displayed better release performance with an increase amount of NaAlg in the structure. Finally, the optimum IBU release was obtained as 93.9% for beads containing 66.7% (w/w) NaAlg, 33.3% (w/w) MC, IBU/polymer ratio of 1/4, FeCl3 concentration of 0.1 M, and crosslinking time of 90 min. The in vitro release rate was fitted to five empirical equations, and the diffusion exponent n, which indicated that the release mechanism of IBU from beads followed the Anomalous and Case II transport mechanism.
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11
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Impregnation of passion fruit bagasse extract in alginate aerogel microparticles. Int J Biol Macromol 2020; 155:1060-1068. [DOI: 10.1016/j.ijbiomac.2019.11.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 10/24/2019] [Accepted: 11/07/2019] [Indexed: 11/22/2022]
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12
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Jain SK, Jain AK, Rajpoot K. Expedition of Eudragit® Polymers in the Development of Novel Drug Delivery Systems. Curr Drug Deliv 2020; 17:448-469. [PMID: 32394836 DOI: 10.2174/1567201817666200512093639] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 01/10/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022]
Abstract
Eudragit® polymer has been widely used in film-coating for enhancing the quality of products over other materials (e.g., shellac or sugar). Eudragit® polymers are obtained synthetically from the esters of acrylic and methacrylic acid. For the last few years, they have shown immense potential in the formulations of conventional, pH-triggered, and novel drug delivery systems for incorporating a vast range of therapeutics including proteins, vitamins, hormones, vaccines, and genes. Different grades of Eudragit® have been used for designing and delivery of therapeutics at a specific site via the oral route, for instance, in stomach-specific delivery, intestinal delivery, colon-specific delivery, mucosal delivery. Further, these polymers have also shown their great aptitude in topical and ophthalmic delivery. Moreover, available literature evidences the promises of distinct Eudragit® polymers for efficient targeting of incorporated drugs to the site of interest. This review summarizes some potential researches that are being conducted by eminent scientists utilizing the distinct grades of Eudragit® polymers for efficient delivery of therapeutics at various sites of interest.
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Affiliation(s)
- Sunil Kumar Jain
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (C.G.) 495 009, India
| | - Akhlesh K Jain
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (C.G.) 495 009, India
| | - Kuldeep Rajpoot
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya (A Central University), Bilaspur (C.G.) 495 009, India
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13
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Milessi TS, Zangirolami TC, Perez CL, Sandri JP, Corradini FA, Foulquié-Moreno MR, Thevelein JM, Giordano RC, Giordano RL. Bioethanol Production from Xylose-Rich Hydrolysate by Immobilized Recombinant Saccharomyces cerevisiae in Fixed-Bed Reactor. Ind Biotechnol (New Rochelle N Y) 2020. [DOI: 10.1089/ind.2020.29198.tsm] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Thais S. Milessi
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
- Federal University of Itajubá, Institute of Natural Resources, Itajubá, MG, Brazil
| | - Teresa C. Zangirolami
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
| | - Caroline L. Perez
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
| | - Juliana P. Sandri
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
| | - Felipe A.S. Corradini
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
| | - Maria R. Foulquié-Moreno
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven
- Center for Microbiology, VIB, Flanders, Belgium
| | - Johan M. Thevelein
- Laboratory of Molecular Cell Biology, Institute of Botany and Microbiology, KU Leuven
- Center for Microbiology, VIB, Flanders, Belgium
| | - Roberto C. Giordano
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
| | - Raquel L.C. Giordano
- Federal University of São Carlos, Chemical Engineering Graduation Program, São Carlos, SP, Brazil
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14
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Dhamecha D, Movsas R, Sano U, Menon JU. Applications of alginate microspheres in therapeutics delivery and cell culture: Past, present and future. Int J Pharm 2019; 569:118627. [PMID: 31421199 PMCID: PMC7073469 DOI: 10.1016/j.ijpharm.2019.118627] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 12/11/2022]
Abstract
Polymers are the backbone of pharmaceutical drug delivery. There are several polymers with varying properties available today for use in different pharmaceutical applications. Alginate is widely used in biomedical research due to its attractive features such as biocompatibility, biodegradability, inertness, low cost, and ease of production and formulation. Encapsulation of therapeutic agents in alginate/alginate complex microspheres protects them from environmental stresses, including the acidic environment in the gastro-intestinal tract (GIT) and enzymatic degradation, and allows targeted and sustained delivery of the agents. Microencapsulation is playing an increasingly important role in drug delivery as evidenced by the recent surge in research articles on the use of alginate in the delivery of small molecules, cells, bacteria, proteins, vaccines, and for tissue engineering applications. Formulation of these alginate microspheres (AMS) are commonly achieved by conventional external gelation method using various instrumental manipulation such as vortexing, homogenization, ultrasonication or spray drying, and each method affects the overall particle characteristics. In this review, an inclusive summary of the currently available methods for the formulation of AMS, its recent use in the encapsulation and delivery of therapeutics, and future outlook will be discussed.
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Affiliation(s)
- Dinesh Dhamecha
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Rachel Movsas
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Ugene Sano
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA
| | - Jyothi U Menon
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, RI 02881, USA.
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15
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Huang J, Bai F, Wu Y, Ye Q, Liang D, Shi C, Zhang X. Development and evaluation of lutein-loaded alginate microspheres with improved stability and antioxidant. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:5195-5201. [PMID: 31032964 DOI: 10.1002/jsfa.9766] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 04/24/2019] [Accepted: 04/29/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND Lutein has been of great interest to the food processing and pharmaconutrient industries owing to its beneficial effects on human health. However, lutein is very sensitive to heat, light, pH and oxidative conditions, which limits its application in food systems. The present study aimed to prepare lutein-alginate microspheres by a calcium chloride gelation method with the purpose of improving the stability and antioxidant abilities of lutein. RESULTS The loading capacity of lutein in the microspheres was approximately 5.3% (w/w) and the entrapment efficiency was about 63%. The loaded microspheres were nearly spherical with an average size of 150 μm. They exhibited a crimped surface by scanning electron microscopy. The lutein was in amorphous state by X-ray powder diffraction. Analysis by Fourier transform infrared spectroscopy and molecular docking revealed an intermolecular hydrogen bond interaction between lutein and sodium alginate. In vitro release experiments showed that the microspheres presented slower release at acidic conditions than at neutral intestinal conditions. The 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity of the microencapsulated lutein was higher than that of free lutein. The stability of lutein in the microspheres was improved significantly when compared with that of free lutein at various temperatures. CONCLUSION The present work successfully developed well-protected lutein-alginate microspheres. This indicates that it is feasible to use microspheres loaded with lutein as antioxidant functional ingredients in food products. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Jin Huang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Feifei Bai
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Yanchen Wu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Qingzhuo Ye
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
| | - Dong Liang
- Guangxi Normal University, Guilin, China
| | - Caihong Shi
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiangrong Zhang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, China
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang, China
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Chen X, Ren Y, Feng Y, Xu X, Tan H, Li J. Cp1-11 peptide/insulin complex loaded pH-responsive nanoparticles with enhanced oral bioactivity. Int J Pharm 2019; 562:23-30. [DOI: 10.1016/j.ijpharm.2019.03.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 12/19/2022]
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18
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Ganesan K, Budtova T, Ratke L, Gurikov P, Baudron V, Preibisch I, Niemeyer P, Smirnova I, Milow B. Review on the Production of Polysaccharide Aerogel Particles. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2144. [PMID: 30384442 PMCID: PMC6265924 DOI: 10.3390/ma11112144] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 10/10/2018] [Accepted: 10/23/2018] [Indexed: 02/04/2023]
Abstract
A detailed study of the production of polysaccharide aerogel (bio-aerogel) particles from lab to pilot scale is surveyed in this article. An introduction to various droplets techniques available in the market is given and compared with the lab scale production of droplets using pipettes and syringes. An overview of the mechanisms of gelation of polysaccharide solutions together with non-solvent induced phase separation option is then discussed in the view of making wet particles. The main steps of particle recovery and solvent exchange are briefly described in order to pass through the final drying process. Various drying processes are overviewed and the importance of supercritical drying is highlighted. In addition, we present the characterization techniques to analyse the morphology and properties of the aerogels. The case studies of bio-aerogel (agar, alginate, cellulose, chitin, κ-carrageenan, pectin and starch) particles are reviewed. Potential applications of polysaccharide aerogel particles are briefly given. Finally, the conclusions summarize the prospects of the potential scale-up methods for producing bio-aerogel particles.
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Affiliation(s)
- Kathirvel Ganesan
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Tatiana Budtova
- MINES Paris Tech, PSL Research University, Center for Materials Forming (CEMEF), UMR CNRS 7635, CS 10207, 06904 Sophia Antipolis, France.
| | - Lorenz Ratke
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Pavel Gurikov
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Victor Baudron
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Imke Preibisch
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Philipp Niemeyer
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
| | - Irina Smirnova
- Institute of Thermal Separation Processes, Hamburg University of Technology, Eißendorfer Straße 38, 21073 Hamburg, Germany.
| | - Barbara Milow
- German Aerospace Center, Institute of Materials Research, Linder Hoehe, 51147 Cologne, Germany.
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Zhao S, Malfait WJ, Guerrero-Alburquerque N, Koebel MM, Nyström G. Biopolymer-Aerogele und -Schäume: Chemie, Eigenschaften und Anwendungen. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201709014] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Wim J. Malfait
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Natalia Guerrero-Alburquerque
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Matthias M. Koebel
- Building Energy Materials & Components; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
| | - Gustav Nyström
- Angewandte Holzforschung; Eidgenössische Materialprüfungs- und Forschungsanstalt (Empa); Überlandstrasse 129 CH-8600 Dübendorf Schweiz
- Departement Gesundheitswissenschaften und Technologie; ETH Zürich; Schmelzbergstrasse 9 CH-8092 Zürich Schweiz
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20
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Zhao S, Malfait WJ, Guerrero-Alburquerque N, Koebel MM, Nyström G. Biopolymer Aerogels and Foams: Chemistry, Properties, and Applications. Angew Chem Int Ed Engl 2018; 57:7580-7608. [DOI: 10.1002/anie.201709014] [Citation(s) in RCA: 336] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Shanyu Zhao
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Wim J. Malfait
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Natalia Guerrero-Alburquerque
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Matthias M. Koebel
- Building Energy Materials & Components Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
| | - Gustav Nyström
- Applied Wood Materials Laboratory; Swiss Federal Laboratories for Materials Science and Technology (Empa); Überlandstrasse 129 CH-8600 Dübendorf Switzerland
- Department of Health Science and Technology; ETH Zurich; Schmelzbergstrasse 9 CH-8092 Zürich Switzerland
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Wong CY, Al-Salami H, Dass CR. Microparticles, microcapsules and microspheres: A review of recent developments and prospects for oral delivery of insulin. Int J Pharm 2017; 537:223-244. [PMID: 29288095 DOI: 10.1016/j.ijpharm.2017.12.036] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 12/17/2017] [Indexed: 01/02/2023]
Abstract
Diabetes mellitus is a chronic metabolic health disease affecting the homeostasis of blood sugar levels. However, subcutaneous injection of insulin can lead to patient non-compliance, discomfort, pain and local infection. Sub-micron sized drug delivery systems have gained attention in oral delivery of insulin for diabetes treatment. In most of the recent literature, the terms "microparticles" and "nanoparticle" refer to particles where the dimensions of the particle are measured in micrometers and nanometers respectively. For instance, insulin-loaded particles are defined as microparticles with size larger than 1 μm by most of the research groups. The size difference between nanoparticles and microparticles proffers numerous effects on the drug loading efficiency, aggregation, permeability across the biological membranes, cell entry and tissue retention. For instance, microparticulate drug delivery systems have demonstrated a number of advantages including protective effect against enzymatic degradation, enhancement of peptide stability, site-specific and controlled drug release. Compared to nanoparticulate drug delivery systems, microparticulate formulations can facilitate oral absorption of insulin by paracellular, transcellular and lymphatic routes. In this article, we review the current status of microparticles, microcapsules and microspheres for oral administration of insulin. A number of novel techniques including layer-by-layer coating, self-polymerisation of shell, nanocomposite microparticulate drug delivery system seem to be promising for enhancing the oral bioavailability of insulin. This review draws several conclusions for future directions and challenges to be addressed for optimising the properties of microparticulate drug formulations and enhancing their hypoglycaemic effects.
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Affiliation(s)
- Chun Y Wong
- School of Pharmacy and Biomedical Science, Curtin University, Bentley 6102, Australia; Curtin Health Innovation Research Institute, Bentley 6102, Australia
| | - Hani Al-Salami
- School of Pharmacy and Biomedical Science, Curtin University, Bentley 6102, Australia; Curtin Health Innovation Research Institute, Bentley 6102, Australia
| | - Crispin R Dass
- School of Pharmacy and Biomedical Science, Curtin University, Bentley 6102, Australia; Curtin Health Innovation Research Institute, Bentley 6102, Australia.
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Villaverde Cendon F, Matos Jorge RM, Weinschutz R, Mathias AL. Effect of matrix composition, sphere size and hormone concentration on diffusion coefficient of insulin for controlled gastrointestinal delivery for diabetes treatment. J Microencapsul 2017; 35:13-25. [DOI: 10.1080/02652048.2017.1409820] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
| | | | - Regina Weinschutz
- Chemical Engineering Department, Federal University of Paraná, Curitiba, Brazil
| | - Alvaro Luiz Mathias
- Chemical Engineering Department, Federal University of Paraná, Curitiba, Brazil
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Malik DJ, Sokolov IJ, Vinner GK, Mancuso F, Cinquerrui S, Vladisavljevic GT, Clokie MR, Garton NJ, Stapley AG, Kirpichnikova A. Formulation, stabilisation and encapsulation of bacteriophage for phage therapy. Adv Colloid Interface Sci 2017; 249:100-133. [PMID: 28688779 DOI: 10.1016/j.cis.2017.05.014] [Citation(s) in RCA: 277] [Impact Index Per Article: 39.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/11/2017] [Accepted: 05/11/2017] [Indexed: 02/08/2023]
Abstract
Against a backdrop of global antibiotic resistance and increasing awareness of the importance of the human microbiota, there has been resurgent interest in the potential use of bacteriophages for therapeutic purposes, known as phage therapy. A number of phage therapy phase I and II clinical trials have concluded, and shown phages don't present significant adverse safety concerns. These clinical trials used simple phage suspensions without any formulation and phage stability was of secondary concern. Phages have a limited stability in solution, and undergo a significant drop in phage titre during processing and storage which is unacceptable if phages are to become regulated pharmaceuticals, where stable dosage and well defined pharmacokinetics and pharmacodynamics are de rigueur. Animal studies have shown that the efficacy of phage therapy outcomes depend on the phage concentration (i.e. the dose) delivered at the site of infection, and their ability to target and kill bacteria, arresting bacterial growth and clearing the infection. In addition, in vitro and animal studies have shown the importance of using phage cocktails rather than single phage preparations to achieve better therapy outcomes. The in vivo reduction of phage concentration due to interactions with host antibodies or other clearance mechanisms may necessitate repeated dosing of phages, or sustained release approaches. Modelling of phage-bacterium population dynamics reinforces these points. Surprisingly little attention has been devoted to the effect of formulation on phage therapy outcomes, given the need for phage cocktails, where each phage within a cocktail may require significantly different formulation to retain a high enough infective dose. This review firstly looks at the clinical needs and challenges (informed through a review of key animal studies evaluating phage therapy) associated with treatment of acute and chronic infections and the drivers for phage encapsulation. An important driver for formulation and encapsulation is shelf life and storage of phage to ensure reproducible dosages. Other drivers include formulation of phage for encapsulation in micro- and nanoparticles for effective delivery, encapsulation in stimuli responsive systems for triggered controlled or sustained release at the targeted site of infection. Encapsulation of phage (e.g. in liposomes) may also be used to increase the circulation time of phage for treating systemic infections, for prophylactic treatment or to treat intracellular infections. We then proceed to document approaches used in the published literature on the formulation and stabilisation of phage for storage and encapsulation of bacteriophage in micro- and nanostructured materials using freeze drying (lyophilization), spray drying, in emulsions e.g. ointments, polymeric microparticles, nanoparticles and liposomes. As phage therapy moves forward towards Phase III clinical trials, the review concludes by looking at promising new approaches for micro- and nanoencapsulation of phages and how these may address gaps in the field.
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25
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Agüero L, Zaldivar-Silva D, Peña L, Dias ML. Alginate microparticles as oral colon drug delivery device: A review. Carbohydr Polym 2017; 168:32-43. [DOI: 10.1016/j.carbpol.2017.03.033] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 02/18/2017] [Accepted: 03/09/2017] [Indexed: 01/13/2023]
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26
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Pankongadisak P, Ruktanonchai UR, Supaphol P, Suwantong O. Gelatin scaffolds functionalized by silver nanoparticle-containing calcium alginate beads for wound care applications. POLYM ADVAN TECHNOL 2016. [DOI: 10.1002/pat.3988] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - Pitt Supaphol
- The Petroleum and Petrochemical College; Chulalongkorn University; Pathumwan Bangkok 10330 Thailand
- The Center of Excellence on Petrochemical and Materials Technology; Chulalongkorn University; Pathumwan Bangkok 10330 Thailand
| | - Orawan Suwantong
- School of Science; Mae Fah Luang University; Tasud, Muang Chiang Rai 57100 Thailand
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27
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Lio D, Yeo D, Xu C. Control of Alginate Core Size in Alginate-Poly (Lactic-Co-Glycolic) Acid Microparticles. NANOSCALE RESEARCH LETTERS 2016; 11:9. [PMID: 26745977 PMCID: PMC4706538 DOI: 10.1186/s11671-015-1222-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/27/2015] [Indexed: 06/05/2023]
Abstract
Core-shell alginate-poly (lactic-co-glycolic) acid (PLGA) microparticles are potential candidates to improve hydrophilic drug loading while facilitating controlled release. This report studies the influence of the alginate core size on the drug release profile of alginate-PLGA microparticles and its size. Microparticles are synthesized through double-emulsion fabrication via a concurrent ionotropic gelation and solvent extraction. The size of alginate core ranges from approximately 10, 50, to 100 μm when the emulsification method at the first step is homogenization, vortexing, or magnetic stirring, respectively. The second step emulsification for all three conditions is performed with magnetic stirring. Interestingly, although the alginate core has different sizes, alginate-PLGA microparticle diameter does not change. However, drug release profiles are dramatically different for microparticles comprising different-sized alginate cores. Specifically, taking calcein as a model drug, microparticles containing the smallest alginate core (10 μm) show the slowest release over a period of 26 days with burst release less than 1 %.
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Affiliation(s)
- Daniel Lio
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
- NTU-Northwestern Institute of Nanomedicine, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - David Yeo
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Chenjie Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore.
- NTU-Northwestern Institute of Nanomedicine, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
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28
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Ren Z, Zhang X, Guo Y, Han K, Huo N. Preparation andin vitrodelivery performance of chitosan–alginate microcapsule for IgG. FOOD AGR IMMUNOL 2016. [DOI: 10.1080/09540105.2016.1202206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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29
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Zykwinska A, Marquis M, Sinquin C, Cuenot S, Colliec-Jouault S. Assembly of HE800 exopolysaccharide produced by a deep-sea hydrothermal bacterium into microgels for protein delivery applications. Carbohydr Polym 2016; 142:213-21. [DOI: 10.1016/j.carbpol.2016.01.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Revised: 01/14/2016] [Accepted: 01/25/2016] [Indexed: 11/30/2022]
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30
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Influence of Sodium Alginate on Hypoglycemic Activity of Metformin Hydrochloride in the Microspheres Obtained by the Spray Drying. INT J POLYM SCI 2016. [DOI: 10.1155/2016/8635408] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Alginate microspheres with metformin hydrochloride were prepared by the spray drying method in order to improve residence time of drug in the stomach. Nine formulations (F1–F9) with various drug : polymer ratio (1 : 2, 1 : 1, and 2 : 1) and different sodium alginate concentration (1%, 2%, and 3%) were evaluated for size, morphology, drug loading, Zeta potential, and swelling degree.In vitrodrug release, mathematical release profile, and physical state of microspheres were also evaluated. Optimal formulation characterized by the highest drug loading was formulation F6 (drug : polymer ratio 2 : 1 and 2% alginate solution). Based on glucose uptake inSaccharomyces cerevisiaecells andα-amylase inhibition tests, it could be concluded that alginate microspheres enhance hypoglycemic activity of metformin hydrochloride evaluatedin vitro. Designed microspheres are promising as alternative, multicompartment dosage form for metformin hydrochloride delivery.
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31
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Sáez M, Barros A, Vizcaíno A, López G, Alarcón F, Martínez T. Effect of alginate and chitosan encapsulation on the fate of BSA protein delivered orally to gilthead sea bream (Sparus aurata). Anim Feed Sci Technol 2015. [DOI: 10.1016/j.anifeedsci.2015.09.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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32
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Martins M, Barros AA, Quraishi S, Gurikov P, Raman S, Smirnova I, Duarte ARC, Reis RL. Preparation of macroporous alginate-based aerogels for biomedical applications. J Supercrit Fluids 2015. [DOI: 10.1016/j.supflu.2015.05.010] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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33
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Lopes MA, Abrahim-Vieira B, Oliveira C, Fonte P, Souza AMT, Lira T, Sequeira JAD, Rodrigues CR, Cabral LM, Sarmento B, Seiça R, Veiga F, Ribeiro AJ. Probing insulin bioactivity in oral nanoparticles produced by ultrasonication-assisted emulsification/internal gelation. Int J Nanomedicine 2015; 10:5865-80. [PMID: 26425087 PMCID: PMC4583106 DOI: 10.2147/ijn.s86313] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Alginate-dextran sulfate-based particles obtained by emulsification/internal gelation technology can be considered suitable carriers for oral insulin delivery. A rational study focused on the emulsification and particle recovery steps was developed in order to reduce particles to the nanosize range while keeping insulin bioactivity. There was a decrease in size when ultrasonication was used during emulsification, which was more pronounced when a cosurfactant was added. Ultrasonication add-on after particle recovery decreased aggregation and led to a narrower nanoscale particle-size distribution. Insulin encapsulation efficiency was 99.3%±0.5%, attributed to the strong pH-stabilizing electrostatic effect between insulin and nanoparticle matrix polymers. Interactions between these polymers and insulin were predicted using molecular modeling studies through quantum mechanics calculations that allowed for prediction of the interaction model. In vitro release studies indicated well-preserved integrity of nanoparticles in simulated gastric fluid. Circular dichroism spectroscopy proved conformational stability of insulin and Fourier transform infrared spectroscopy technique showed rearrangements of insulin structure during processing. Moreover, in vivo biological activity in diabetic rats revealed no statistical difference when compared to nonencapsulated insulin, demonstrating retention of insulin activity. Our results demonstrate that alginate-dextran sulfate-based nanoparticles efficiently stabilize the loaded protein structure, presenting good physical properties for oral delivery of insulin.
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Affiliation(s)
- Marlene A Lopes
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal ; CNC - Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Bárbara Abrahim-Vieira
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudia Oliveira
- I3S, Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal ; Group Genetics of Cognitive Dysfunction, IBMC - Instituto de Biologia Molecular e Celular, Porto, Portugal
| | - Pedro Fonte
- REQUIMTE, Department of Chemical Sciences - Applied Chemistry Lab, Faculty of Pharmacy, University of Porto, Porto, Portugal ; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal
| | - Alessandra M T Souza
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Tammy Lira
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Joana A D Sequeira
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal ; CNC - Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - Carlos R Rodrigues
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lúcio M Cabral
- Department of Pharmaceutics, Faculty of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Bruno Sarmento
- REQUIMTE, Department of Chemical Sciences - Applied Chemistry Lab, Faculty of Pharmacy, University of Porto, Porto, Portugal ; CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Gandra, Portugal ; INEB - Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
| | - Raquel Seiça
- IBILI - Institute of Biomedical Research in Light and Image, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Francisco Veiga
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal ; CNC - Center for Neuroscience and Cell Biology, Coimbra, Portugal
| | - António J Ribeiro
- Faculty of Pharmacy, University of Coimbra, Coimbra, Portugal ; I3S, Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal ; Group Genetics of Cognitive Dysfunction, IBMC - Instituto de Biologia Molecular e Celular, Porto, Portugal
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Cárdenas-Bailón F, Osorio-Revilla G, Gallardo-Velázquez T. Microencapsulation of insulin using a W/O/W double emulsion followed by complex coacervation to provide protection in the gastrointestinal tract. J Microencapsul 2015; 32:308-16. [DOI: 10.3109/02652048.2015.1017619] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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35
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Mooranian A, Negrulj R, Al-Sallami HS, Fang Z, Mikov M, Golocorbin-Kon S, Fakhoury M, Watts GF, Matthews V, Arfuso F, Lambros A, Al-Salami H. Probucol release from novel multicompartmental microcapsules for the oral targeted delivery in type 2 diabetes. AAPS PharmSciTech 2015; 16:45-52. [PMID: 25168450 DOI: 10.1208/s12249-014-0205-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 08/14/2014] [Indexed: 11/30/2022] Open
Abstract
In previous studies, we developed and characterised multicompartmental microcapsules as a platform for the targeted oral delivery of lipophilic drugs in type 2 diabetes (T2D). We also designed a new microencapsulated formulation of probucol-sodium alginate (PB-SA), with good structural properties and excipient compatibility. The aim of this study was to examine the stability and pH-dependent targeted release of the microcapsules at various pH values and different temperatures. Microencapsulation was carried out using a Büchi-based microencapsulating system developed in our laboratory. Using SA polymer, two formulations were prepared: empty SA microcapsules (SA, control) and loaded SA microcapsules (PB-SA, test), at a constant ratio (1:30), respectively. Microcapsules were examined for drug content, zeta potential, size, morphology and swelling characteristics and PB release characteristics at pH 1.5, 3, 6 and 7.8. The production yield and microencapsulation efficiency were also determined. PB-SA microcapsules had 2.6 ± 0.25% PB content, and zeta potential of -66 ± 1.6%, suggesting good stability. They showed spherical and uniform morphology and significantly higher swelling at pH 7.8 at both 25 and 37°C (p < 0.05). The microcapsules showed multiphasic release properties at pH 7.8. The production yield and microencapsulation efficiency were high (85 ± 5 and 92 ± 2%, respectively). The PB-SA microcapsules exhibited distal gastrointestinal tract targeted delivery with a multiphasic release pattern and with good stability and uniformity. However, the release of PB from the microcapsules was not controlled, suggesting uneven distribution of the drug within the microcapsules.
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36
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Zhao M, Qu F, Cai S, Fang Y, Nishinari K, Phillips GO, Jiang F. Microencapsulation of Lactobacillus acidophilus CGMCC1.2686: Correlation Between Bacteria Survivability and Physical Properties of Microcapsules. FOOD BIOPHYS 2015. [DOI: 10.1007/s11483-014-9389-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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37
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Lim HP, Tey BT, Chan ES. Particle designs for the stabilization and controlled-delivery of protein drugs by biopolymers: a case study on insulin. J Control Release 2014; 186:11-21. [PMID: 24816070 DOI: 10.1016/j.jconrel.2014.04.042] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 04/19/2014] [Accepted: 04/23/2014] [Indexed: 11/24/2022]
Abstract
Natural biopolymers have attracted considerable interest for the development of delivery systems for protein drugs owing to their biocompatibility, non-toxicity, renewability and mild processing conditions. This paper offers an overview of the current status and future perspectives of particle designs using biopolymers for the stabilization and controlled-delivery of a model protein drug--insulin. We first describe the design criteria for polymeric encapsulation and subsequently classify the basic principles of particle fabrication as well as the existing particle designs for oral insulin encapsulation. The performances of these existing particle designs in terms of insulin stability and in vitro release behavior in acidic and alkaline media, as well as their in vivo performance are compared and reviewed. This review forms the basis for future works on the optimization of particle design and material formulation for the development of an improved oral delivery system for protein drugs.
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Affiliation(s)
- Hui-Peng Lim
- Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway 46150, Selangor, Malaysia.
| | - Beng-Ti Tey
- Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway 46150, Selangor, Malaysia; Multidisciplinary Platform of Advanced Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway 46150, Selangor, Malaysia.
| | - Eng-Seng Chan
- Chemical Engineering Discipline, School of Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway 46150, Selangor, Malaysia; Multidisciplinary Platform of Advanced Engineering, Monash University, Jalan Lagoon Selatan, Bandar Sunway 46150, Selangor, Malaysia.
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38
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Gomes AP, Mano JF, Queiroz JA, Gouveia IC. New biomaterial based on cotton with incorporated Biomolecules. J Appl Polym Sci 2014. [DOI: 10.1002/app.40519] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana P. Gomes
- Optical Centre, University of Beira Interior; 6201-001 Covilhã Portugal
| | - João F. Mano
- 3B's Research Group-Biomaterials, Biodegradables, and Biomimetics; University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine; AvePark 4806-909 Taipas Guimarães Portugal
- ICVS/3B's, PT Government Associate Laboratory; Braga/Guimarães Portugal
| | - João A. Queiroz
- Health Sciences Research Centre, University of Beira Interior; 6201-001 Covilhã Portugal
| | - Isabel C. Gouveia
- R&D Unit of Textile and Paper Materials, Faculty of Engineering; University of Beira Interior; 6201-001 Covilhã Portugal
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Kim YM, Oh SH, Choi JS, Lee S, Ra JC, Lee JH, Lim JY. Adipose-derived stem cell-containing hyaluronic acid/alginate hydrogel improves vocal fold wound healing. Laryngoscope 2013; 124:E64-72. [DOI: 10.1002/lary.24405] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 06/06/2013] [Accepted: 08/26/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Young-Mo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery; Inha University School of Medicine; Incheon
- Translational Research Center; Inha University School of Medicine; Incheon
| | - Se H. Oh
- Department of Nanobiomedical Science and WCU Research Center; Dankook University; Cheonan
| | - Jeong-Seok Choi
- Department of Otorhinolaryngology-Head and Neck Surgery; Inha University School of Medicine; Incheon
- Translational Research Center; Inha University School of Medicine; Incheon
| | - Songyi Lee
- Department of Otorhinolaryngology-Head and Neck Surgery; Inha University School of Medicine; Incheon
- Translational Research Center; Inha University School of Medicine; Incheon
| | - Jeong C. Ra
- Stem Cell Research Center, RNL Bio Co., Ltd.; Seoul
| | - Jin H. Lee
- Department of Advanced Materials; Hannam University; Daejeon Republic of Korea
| | - Jae-Yol Lim
- Department of Otorhinolaryngology-Head and Neck Surgery; Inha University School of Medicine; Incheon
- Translational Research Center; Inha University School of Medicine; Incheon
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40
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Vanea E, Moraru C, Vulpoi A, Cavalu S, Simon V. Freeze-dried and spray-dried zinc-containing silica microparticles entrapping insulin. J Biomater Appl 2013; 28:1190-9. [DOI: 10.1177/0885328213501216] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
New approaches for oral administration of insulin are strongly related to novel insulin carriers. The aim of this study was the insulin microencapsulation in a new zinc-silica matrix for drug protection and controlled release. Zinc-silica microparticles loaded with insulin were obtained by sol-gel process via spray drying and freeze drying methods. Inorganic silica matrix isolates and constrains the movement of the biomolecules preventing their aggregation and denaturation, while the zinc oxide improves the system stability. Moreover, formation of insulin hexamers in the presence of zinc ions leads to an increased stability of the insulin three-dimensional structure during preparation, storage and release. The particles were characterized with respect to average size, specific surface area, porosity and morphology. In vitro behavior of insulin-loaded particles together with protein structural conformation was also evaluated. The release profile can be adapted by synthesis route of microparticles.
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Affiliation(s)
- Emilia Vanea
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Corina Moraru
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Adriana Vulpoi
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, Oradea, Romania
| | - Viorica Simon
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
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41
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Vanea E, Gruian C, Rickert C, Steinhoff HJ, Simon V. Structure and Dynamics of Spin-Labeled Insulin Entrapped in a Silica Matrix by the Sol–Gel Method. Biomacromolecules 2013; 14:2582-92. [DOI: 10.1021/bm4003893] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- E. Vanea
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - C. Gruian
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
| | - C. Rickert
- Department of Physics, University of Osnabrück, Osnabrück, Germany
| | - H.-J. Steinhoff
- Department of Physics, University of Osnabrück, Osnabrück, Germany
| | - V. Simon
- Faculty of Physics & Institute of Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai University, Cluj-Napoca, Romania
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Poojari R, Srivastava R. Composite alginate microspheres as the next-generation egg-box carriers for biomacromolecules delivery. Expert Opin Drug Deliv 2013; 10:1061-76. [DOI: 10.1517/17425247.2013.796361] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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43
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Novel microparticulate systems for the vaginal delivery of nystatin: Development and characterization. Carbohydr Polym 2013; 94:1-11. [DOI: 10.1016/j.carbpol.2013.01.005] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Revised: 12/31/2012] [Accepted: 01/03/2013] [Indexed: 11/16/2022]
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44
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Sagiri SS, Sethy J, Pal K, Banerjee I, Pramanik K, Maiti TK. Encapsulation of vegetable organogels for controlled delivery applications. Des Monomers Polym 2012. [DOI: 10.1080/15685551.2012.747154] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- Sai Sateesh Sagiri
- a Soft Materials & Medical Instrumentation Laboratory, Department of Biotechnology & Medical Engineering , National Institute of Technology , Rourkela-769008, Odisha , India
| | - Jyotirmoy Sethy
- a Soft Materials & Medical Instrumentation Laboratory, Department of Biotechnology & Medical Engineering , National Institute of Technology , Rourkela-769008, Odisha , India
| | - Kunal Pal
- a Soft Materials & Medical Instrumentation Laboratory, Department of Biotechnology & Medical Engineering , National Institute of Technology , Rourkela-769008, Odisha , India
| | - Indranil Banerjee
- b Tissue Engineering Group, Department of Biotechnology & Medical Engineering , National Institute of Technology , Rourkela-769008, Odisha , India
| | - Krishna Pramanik
- b Tissue Engineering Group, Department of Biotechnology & Medical Engineering , National Institute of Technology , Rourkela-769008, Odisha , India
| | - Tapas K. Maiti
- c Department of Biotechnology , Indian Institute of Technology , WB-721302, Kharagpur , India
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Cárdenas-Bailón F, Osorio-Revilla G, Gallardo-Velázquez T. Microencapsulation techniques to develop formulations of insulin for oral delivery: a review. J Microencapsul 2012; 30:409-24. [DOI: 10.3109/02652048.2012.742159] [Citation(s) in RCA: 27] [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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46
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Fabrication, characterization and in vitro profile based interaction with eukaryotic and prokaryotic cells of alginate-chitosan-silica biocomposite. Int J Pharm 2012. [PMID: 23178215 DOI: 10.1016/j.ijpharm.2012.10.045] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work is focused on the fabrication of a new drug delivery system based on polyanionic matrix (e.g. sodium alginate), polycationic matrix (e.g. chitosan) and silica network. The FT-IR, SEM, DTA-TG, eukaryotic cell cycle and viability, and in vitro assay of the influence of the biocomposite on the efficacy of antibiotic drugs were investigated. The obtained results demonstrated the biocompatibility and the ability of the fabricated biocomposite to maintain or improve the efficacy of the following antibiotics: piperacillin-tazobactam, cefepime, piperacillin, imipenem, gentamicin, ceftazidime against Pseudomonas aeruginosa ATCC 27853 and cefazolin, cefaclor, cefuroxime, ceftriaxone, cefoxitin, trimethoprim/sulfamethoxazole against Escherichia coli ATCC 25922 reference strains.
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47
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Chaturvedi K, Ganguly K, Nadagouda MN, Aminabhavi TM. Polymeric hydrogels for oral insulin delivery. J Control Release 2012; 165:129-38. [PMID: 23159827 DOI: 10.1016/j.jconrel.2012.11.005] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 11/04/2012] [Accepted: 11/06/2012] [Indexed: 11/28/2022]
Abstract
The search for an effective and reliable oral insulin delivery system has been a major challenge facing pharmaceutical scientists for over many decades. Even though innumerable carrier systems that protect insulin from degradation in the GIT with improved membrane permeability and biological activity have been developed, yet a clinically acceptable device is not available for human application. Efforts in this direction are continuing at an accelerated speed. One of the preferred systems widely explored is based on polymeric hydrogels that protect insulin from enzymatic degradation in acidic stomach and delivers effectively in the intestine. Swelling and deswelling mechanisms of the hydrogel under varying pH conditions of the body control the release of insulin. The micro and nanoparticle (NP) hydrogel devices based on biopolymers have been widely explored, but their applications in human insulin therapy are still far from satisfactory. The present review highlights the recent findings on hydrogel-based devices for oral delivery of insulin. Literature data are critically assessed and results from different laboratories are compared.
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Affiliation(s)
- Kiran Chaturvedi
- Soniya Education Trust's College of Pharmacy, S.R. Nagar, Dharwad, India
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48
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Ormategui N, Zhang S, Loinaz I, Brydson R, Nelson A, Vakurov A. Interaction of poly(N-isopropylacrylamide) (pNIPAM) based nanoparticles and their linear polymer precursor with phospholipid membrane models. Bioelectrochemistry 2012; 87:211-9. [DOI: 10.1016/j.bioelechem.2011.12.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 12/05/2011] [Accepted: 12/10/2011] [Indexed: 10/14/2022]
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49
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López-Cacho JM, González-R PL, Talero B, Rabasco AM, González-Rodríguez ML. Robust optimization of alginate-Carbopol 940 bead formulations. ScientificWorldJournal 2012; 2012:605610. [PMID: 22645438 PMCID: PMC3354777 DOI: 10.1100/2012/605610] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 12/08/2011] [Indexed: 11/18/2022] Open
Abstract
Formulation process is a very complex activity which sometimes implicates taking decisions about parameters or variables to obtain the best results in a high variability or uncertainty context. Therefore, robust optimization tools can be very useful for obtaining high quality formulations. This paper proposes the optimization of different responses through the robust Taguchi method. Each response was evaluated like a noise variable, allowing the application of Taguchi techniques to obtain a response under the point of view of the signal to noise ratio. A L18 Taguchi orthogonal array design was employed to investigate the effect of eight independent variables involved in the formulation of alginate-Carbopol beads. Responses evaluated were related to drug release profile from beads (t50% and AUC), swelling performance, encapsulation efficiency, shape and size parameters. Confirmation tests to verify the prediction model were carried out and the obtained results were very similar to those predicted in every profile. Results reveal that the robust optimization is a very useful approach that allows greater precision and accuracy to the desired value.
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Affiliation(s)
- J M López-Cacho
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Seville, C/ Professor García González 2, 41012 Seville, Spain
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50
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Nograles N, Abdullah S, Shamsudin MN, Billa N, Rosli R. Formation and characterization of pDNA-loaded alginate microspheres for oral administration in mice. J Biosci Bioeng 2012; 113:133-40. [DOI: 10.1016/j.jbiosc.2011.10.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2011] [Revised: 09/06/2011] [Accepted: 10/07/2011] [Indexed: 10/15/2022]
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