701
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Sosnik A. Alginate Particles as Platform for Drug Delivery by the Oral Route: State-of-the-Art. ISRN PHARMACEUTICS 2014; 2014:926157. [PMID: 25101184 PMCID: PMC4004034 DOI: 10.1155/2014/926157] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2014] [Accepted: 02/25/2014] [Indexed: 11/17/2022]
Abstract
Pharmaceutical research and development aims to design products with ensured safety, quality, and efficacy to treat disease. To make the process more rational, coherent, efficient, and cost-effective, the field of Pharmaceutical Materials Science has emerged as the systematic study of the physicochemical properties and behavior of materials of pharmaceutical interest in relation to product performance. The oral route is the most patient preferred for drug administration. The presence of a mucus layer that covers the entire gastrointestinal tract has been exploited to expand the use of the oral route by developing a mucoadhesive drug delivery system that showed a prolonged residence time. Alginic acid and sodium and potassium alginates have emerged as one of the most extensively explored mucoadhesive biomaterials owing to very good cytocompatibility and biocompatibility, biodegradation, sol-gel transition properties, and chemical versatility that make possible further modifications to tailor their properties. The present review overviews the most relevant applications of alginate microparticles and nanoparticles for drug administration by the oral route and discusses the perspectives of this biomaterial in the future.
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Affiliation(s)
- Alejandro Sosnik
- Group of Pharmaceutical Nanomaterials Science, Department of Materials Science and Engineering, Technion-Israel Institute of Technology De-Jur Building, Office 607, Technion City, 32000 Haifa, Israel
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702
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Microfluidic direct writer with integrated declogging mechanism for fabricating cell-laden hydrogel constructs. Biomed Microdevices 2014; 16:387-95. [DOI: 10.1007/s10544-014-9842-8] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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703
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Vigorov AI, Demin AM, Nizova IA, Krasnov VP. [The synthesis of RGD peptide derivatives containing glutaric and adipic residues]. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2014; 40:157-65. [PMID: 25895334 DOI: 10.1134/s1068162014020149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A method of the synthesis of RGD peptide derivatives containing glutaric or adipic residues linked with α-amino group of L-arginine and allowing carrying out their coupling with other biomolecules and nanoparticles.
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704
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Katsen-Globa A, Meiser I, Petrenko YA, Ivanov RV, Lozinsky VI, Zimmermann H, Petrenko AY. Towards ready-to-use 3-D scaffolds for regenerative medicine: adhesion-based cryopreservation of human mesenchymal stem cells attached and spread within alginate-gelatin cryogel scaffolds. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:857-71. [PMID: 24297514 PMCID: PMC3942626 DOI: 10.1007/s10856-013-5108-x] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 11/25/2013] [Indexed: 05/18/2023]
Abstract
Cultivation and proliferation of stem cells in three-dimensional (3-D) scaffolds is a promising strategy for regenerative medicine. Mesenchymal stem cells with their potential to differentiate in various cell types, cryopreserved adhesion-based in fabricated scaffolds of biocompatible materials can serve as ready-to-use transplantation units for tissue repair, where pores allow a direct contact of graft cells and recipient tissue without further preparation. A successful cryopreservation of adherent cells depends on attachment and spreading processes that start directly after cell seeding. Here, we analyzed different cultivation times (0.5, 2, 24 h) prior to adhesion-based cryopreservation of human mesenchymal stem cells within alginate-gelatin cryogel scaffolds and its influence on cell viability, recovery and functionality at recovery times (0, 24, 48 h) in comparison to non-frozen control. Analysis with confocal laser scanning microscopy and scanning electron microscopy indicated that 2 h cultivation time enhanced cryopreservation success: cell number, visual cell contacts, membrane integrity, motility, as well as spreading were comparable to control. In contrast, cell number by short cultivation time (0.5 h) reduced dramatically after thawing and expanded cultivation time (24 h) decreased cell viability. Our results provide necessary information to enhance the production and to store ready-to-use transplantation units for application in bone, cartilage or skin regenerative therapy.
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Affiliation(s)
- Alisa Katsen-Globa
- Department for Biophysics and Cryotechnology, Fraunhofer Institute for Biomedical Engineering, Ensheimer Str. 48, 66386 St. Ingbert, Germany
| | - Ina Meiser
- Department for Biophysics and Cryotechnology, Fraunhofer Institute for Biomedical Engineering, Ensheimer Str. 48, 66386 St. Ingbert, Germany
| | - Yuriy A. Petrenko
- Institute for Problems of Cryobiology and Cryomedicine NAS Ukraine, 23 PeryaslavskayaStr, Kharkiv, 61015 Ukraine
| | - Roman V. Ivanov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russian Federation
| | - Vladimir I. Lozinsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street, 28, 119991 Moscow, Russian Federation
| | - Heiko Zimmermann
- Department for Biophysics and Cryotechnology, Fraunhofer Institute for Biomedical Engineering, Ensheimer Str. 48, 66386 St. Ingbert, Germany
- Chair of Molecular and Cellular Biotechnology/Nanotechnology, Saarland University, PO Box 151150, 66041 Saarbrücken, Germany
| | - Alexander Yu. Petrenko
- Institute for Problems of Cryobiology and Cryomedicine NAS Ukraine, 23 PeryaslavskayaStr, Kharkiv, 61015 Ukraine
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705
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Venkatesan J, Bhatnagar I, Kim SK. Chitosan-alginate biocomposite containing fucoidan for bone tissue engineering. Mar Drugs 2014; 12:300-16. [PMID: 24441614 PMCID: PMC3917275 DOI: 10.3390/md12010300] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 12/30/2013] [Accepted: 12/30/2013] [Indexed: 12/12/2022] Open
Abstract
Over the last few years, significant research has been conducted in the construction of artificial bone scaffolds. In the present study, different types of polymer scaffolds, such as chitosan-alginate (Chi-Alg) and chitosan-alginate with fucoidan (Chi-Alg-fucoidan), were developed by a freeze-drying method, and each was characterized as a bone graft substitute. The porosity, water uptake and retention ability of the prepared scaffolds showed similar efficacy. The pore size of the Chi-Alg and Chi-Alg-fucoidan scaffolds were measured from scanning electron microscopy and found to be 62–490 and 56–437 µm, respectively. In vitro studies using the MG-63 cell line revealed profound cytocompatibility, increased cell proliferation and enhanced alkaline phosphatase secretion in the Chi-Alg-fucoidan scaffold compared to the Chi-Alg scaffold. Further, protein adsorption and mineralization were about two times greater in the Chi-Alg-fucoidan scaffold than the Chi-Alg scaffold. Hence, we suggest that Chi-Alg-fucoidan will be a promising biomaterial for bone tissue regeneration.
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Affiliation(s)
- Jayachandran Venkatesan
- Marine Bioprocess Research Center, Department of Chemistry, Pukyong National University, Busan 608-737, Korea.
| | - Ira Bhatnagar
- Marine Bioprocess Research Center, Department of Chemistry, Pukyong National University, Busan 608-737, Korea.
| | - Se-Kwon Kim
- Marine Bioprocess Research Center, Department of Chemistry, Pukyong National University, Busan 608-737, Korea.
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706
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Toscano L, Montero G, Stoytcheva M, Cervantes L, Gochev V. Comparison of the performances of four hydrophilic polymers as supports for lipase immobilisation. BIOTECHNOL BIOTEC EQ 2014; 28:52-60. [PMID: 26019488 PMCID: PMC4433960 DOI: 10.1080/13102818.2014.901684] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Four hydrophilic polymers in the form of beads - chitosan, alginate, alginate/polyvinyl alcohol (PVA), and chitosan-coated alginate - were used as supports for lipase immobilisation. Hydrogel beads were characterised by bead-size-distribution estimation, surface morphology studies, and polymer interactions assessment. Matrix performances - loading efficiency, immobilisation yield, enzyme activity, and stability retention - were evaluated and compared. Although the loading efficiency of the chitosan-coated Ca-alginate beads (79.8%) was inferior to that of the Ca-alginate (87%) and of the Ca-alginate/PVA beads (81.3%), their enzyme immobilisation yield (63.96%) was the most important. Moreover, lipase encapsulated in chitosan-coated Ca-alginate beads demonstrated better pH, thermal, and storage (89% residual activity after 30 days) stabilities. Immobilised lipase activity also increased in the order: alginate/PVA > chitosan > alginate > alginate/chitosan, and displayed a maximum at pH 8 and at temperatures of 45 °C (chitosan and Ca-alginate/PVA beads) and 50 °C (Ca-alginate and chitosan-coated Ca-alginate beads). Thus, chitosan-coated Ca-alginate beads could be considered as a suitable support for lipase immobilisation.
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Affiliation(s)
- Lydia Toscano
- Institute of Engineering, Autonomous University of Baja California, Mexicali, Mexico
- Technological Institute of Mexicali, Mexicali, Mexico
| | - Gisela Montero
- Institute of Engineering, Autonomous University of Baja California, Mexicali, Mexico
| | - Margarita Stoytcheva
- Institute of Engineering, Autonomous University of Baja California, Mexicali, Mexico
| | - Lourdes Cervantes
- Institute of Agricultural Science, Autonomous University of Baja California, Mexicali, Mexico
| | - Velizar Gochev
- Department of Biochemistry and Microbiology, Plovdiv University, Plovdiv, Bulgaria
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707
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Freitas F, Alves VD, Reis MA, Crespo JG, Coelhoso IM. Microbial polysaccharide-based membranes: Current and future applications. J Appl Polym Sci 2013. [DOI: 10.1002/app.40047] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Filomena Freitas
- Chemistry Department; REQUIMTE/CQFB, FCT/Universidade Nova de Lisboa; 2829-516 Caparica Portugal
| | - Vítor D. Alves
- CEER-Biosystems Engineering; ISA/University of Lisbon; Tapada da Ajuda 1349-017 Lisboa Portugal
| | - Maria A. Reis
- Chemistry Department; REQUIMTE/CQFB, FCT/Universidade Nova de Lisboa; 2829-516 Caparica Portugal
| | - João G. Crespo
- Chemistry Department; REQUIMTE/CQFB, FCT/Universidade Nova de Lisboa; 2829-516 Caparica Portugal
| | - Isabel M. Coelhoso
- Chemistry Department; REQUIMTE/CQFB, FCT/Universidade Nova de Lisboa; 2829-516 Caparica Portugal
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708
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Roberts JR, Ritter DW, McShane MJ. A Design Full of Holes: Functional Nanofilm-Coated Microdomains in Alginate Hydrogels. J Mater Chem B 2013; 107:3195-3201. [PMID: 24040514 PMCID: PMC3770476 DOI: 10.1039/c3tb20477d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
This study demonstrates the successful manufacture and functional characterization of alginate hydrogels containing a variety of encapsulates within polyelectrolyte multilayer-coated micropores. These microporous alginate (MPA) hydrogels are prepared via one-step internal ionotropic gelation of the alginate using polyelectrolyte multilayer-coated CaCO3 microspheres along with the weak acid glucono-δ-lactone. Here, successful encapsulation of a model macromolecule and fluorescent nanoparticles within microcapsules-distributed throughout the larger alginate hydrogel-is confirmed with confocal microscopy, while the porous morphology of the MPA hydrogels is examined with scanning electron microscopy. Hydrogels constructed with uncoated CaCO3 microspheres release their contents into the surrounding environment, while those constructed with polyelectrolyte multilayer-coated CaCO3 microspheres retain the materials within the pores. MPA hydrogels containing the model enzyme glucose oxidase retained activity and are capable of reacting with small molecules from the external environment. The ability to encapsulate an assortment of functional materials within a moldable, biocompatible alginate matrix gives this approach great flexibility and potential in a wide variety of biomedical applications.
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Affiliation(s)
- Jason R. Roberts
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, United States
| | - Dustin W. Ritter
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, United States
| | - Michael J. McShane
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843-3120, United States
- Materials Science and Engineering Program, Texas A&M University, College Station, TX 77843-3120, United States
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