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Research Article

Polymethylene-co-guanidine based capsules: A mechanistic study of the formation using alginate and cellulose sulphate

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Pages 20-39 | Received 11 Apr 2006, Accepted 03 Aug 2006, Published online: 08 Oct 2008

References

  • Bartkowiak A, Hunkeler D. Alginate-oligochitosan microcapsules: A mechanistic study relating membrane and capsule properties to reaction conditions. Chemistry of Materials 1999; 11: 2486–2492
  • Bartkowiak A, Jezierska J, Spychaj T. An EPR study of polysaccharide copper(II) complexes in composite dextran/epichlorohydrin gels. Polymer Bulletin 1998; 41: 199–206
  • Brissova M, Petro M, Lacik I, Powers AC, Wang T. Evaluation of microcapsule permeability via inverse size exclusion chromatography. Annals of Biochemistry 1996; 242: 104–111
  • Bucko M, Vikartovska A, Lacik I. Immobilization of a whole-cell epoxide-hydrolyzing biocatalyst in sodium alginate-cellulose sulfate-poly(methylene-co-guanidine) capsules using a controlled encapsulation process. Enzyme and Microbial Technology 2005; 36: 118–126
  • Dautzenberg H, Hartmann J, Gurnewald S, Brand F. Stoichiom and structure of polyelectrolyte complex particles in diluted solution, Ber Bunsenge. Phys Chem 1996a; 100: 1024
  • Dautzenberg H, Loth F, Pommerening K, Linow KJ, Bartsch D. Microcapsules and process for the produciton thereof. 2 135 954 A, 1984, Patent, GB
  • Dautzenberg H, Lukanoff B, Eckert U, Tiersch B, Schuldt U. Immobilization of biological matter by polyelectrolyte complex formation. Ber Bunseges Phys Chem 1996b; 100: 1045
  • Grigorescu G, Rehor A, Hunkeler D. Polyvinylamine hydrochloride-based microcapsules: Polymer synthesis, permeability and mechanical properties. The Journal of Microencapsulation 2002; 19: 245–259
  • Hwang JR, Sefton MV. Effect of capsule diameter on the permeability to horseradish peroxidase of individual HEMA-MMA microcapsules. Journal of Controlled Release 1997; 49: 217–227
  • Iwata H, Murakami Y, Ikada Y. Control of complement activities for immunoisolation in bioartificial organs II: Technology, medicine and materials. Annals of the New York Academy of Science 1999; 944: 296–307
  • Jones D. Air suspension coating for multiparticulates. Drug Developments and Industrial Pharmaceutics 1994; 20: 3175–3206
  • Kono K, Okabe H, Morimoto K, Takagishi T. Temperature-dependent permeability of polyelectrolyte complex capsule membranes having N-isopropylacrylamide domains. Journal of Applied Polymer Science 2000; 77: 2703–2710
  • Lacík I, Anilkumar AV, Wang TG. A two-step process for controlling the surface smoothness of polyelectrolyte-based microcapsule. Journal of Microencapsulation 2001; 18: 479–490
  • Lim F, Sun AM. Microencapsulated islets as bioartificial pancreas. Science 1980; 210: 908–910
  • Martinsen A, Skjak-Break G, Smidsrod O. Alginate as immobilization material: I. Correlation between chemical and physical properties of alginate gel beads. Biotechnology and Bioengineering 1989; 33: 79–83
  • Nurdin N, Canaple L, Bartkowiak A, Desvergne B, Hunkeler D. Capsule permeability via polymer and protein ingress/egress. Journal of Applied Polymer Science 1999; 75: 1165–1175
  • Prokop A, Hunkeler D, DiMari S, Haralson MA, Wang TG. Water soluble polymers for immunoisolation I: Complex coacervation and cytotoxicity. Advances in Polymer Science 1997a; 136: 1–51
  • Prokop A, Hunkeler D, Powers AC, Whitesell R, Wang TG. Water soluble polymers for immunoisolation. II: Evaluation of multicomponent microencapsulation systems. Advances in Polymer Science 1997b; 136: 53–73
  • Quong D, Neufeld RJ, Skjak-Braek G, Poncelet D. External versus internal source of calcium during the gelation of alginate beads for DNA encapsulation. Biotechnology and Bioengineering 1998; 20: 438–446
  • Renken A. PhD Thesis No. 2185. Swiss Federal Institute of Technology, Lausanne 2000
  • Schuldt U, Hunkeler D. Characterization methods for microcapsules. Minerva Biotechnologia 2000; 12: 249–264
  • Schuldt U, Hunkeler D. Mechanism of the formation of sodium alginate-sodium cellulose sulfate-polymethylene-co-guanidine capsules 2006, In press
  • Smidsrod O. Molecular basis for some physical properties of alginates in the gel state. Faraday Discussions of the Chemical Society 1974; 57: 263–274
  • Wang T, Lacik I, Brissova M, Anikkumar AV, Prokop A, Hunkeler D, Green R, Shahrokhi K, Powers A. An encapsulation system for the immunoisolation of pancreatic islets. Nature Biotechnology 1997; 15: 358–362
  • Willaert RG, DeBacker L, Baron GV. Mass transfer in immobilised cell systems. John Wiley and Sons, New York 1996
  • Zhang Z, Saunders R, Thomas CR. Mechanical strength of single microcapsules determined by a novel micromanipulation technique. Journal of Microencapsulation 1999; 16: 117–124

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