Characterization methods for microcapsules

Minerva Biotecnologica

Volumn 12, Issue 4, 2000, Pages 249-264

  Schuldt, U ^a   Hunkeler, D ^a  

^a EPFL   (Switzerland)

Author keywords

Capsule; Cutt off; Mechanical stability; Permeability

Indexed keywords

POLYELECTROLYTE;

ARTICLE; COLORIMETRY; CONFOCAL MICROSCOPY; CONTROLLED STUDY; DIFFUSION; ENZYME LINKED IMMUNOSORBENT ASSAY; MECHANICAL STRESS; MEMBRANE PERMEABILITY; MEMBRANE TRANSPORT; METHODOLOGY; MICROCAPSULE; OSMOSIS; PARTICLE SIZE; POROSITY; ROENTGEN SPECTROSCOPY; SURFACE PROPERTY; TRANSMISSION ELECTRON MICROSCOPY;

EID: 0034462534     PISSN: 11204826     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (82)

1. Encapsulated islet transplantation: Pathway to human clinical trials
2. Review -Hydrogels for cell immobilization
3. Synthesis of polymeric microcapsules arrays and their use for enzyme immobilization
4. Immobilisation of biological matter by polyelectrolyte complex formation
5. Bioartificial organs transplanted from research to reality
6. Microencapsulated islets as bioartificial endocrine pancreas
7. Complex coacervate microcapsules for mammalian cell culture and artificial organ development
8. A Screening of polymers as biomaterials for cell encapsulation
9. Effect of media composition on long-term in vitro stability of barium alginate and polyacrylic acid multilayer microcapsules
10. Mass transfer characteristics of immobilized cells used in fermentation processes
11. Technology of mammalian cell encapsulation
12. Capsule permeability via polymer and protein ingress/egress
13. Permeability assessment of capsules for islet transplantation
14. Microencapsulated human hepatoma (HepG2) cells ñ capsule to capsule variations in protein secretion and permeability
15. Factors determing hydrogel permeability
16. Diffusive permeability of ionic solutes in charged chitosan membrane
17. Calcium alginate beads coated with chitosan ñ effect of the structure of encapsulated materials on their release
18. Characterization of size-permeation limits of cell walls and porous separation materials by high-performance size-exclusion chromatography
19. Fundamentals of microencapsulation
20. Microencapsulation of mammalian cells in a HEMA-MMA copolymer. Effects on capsule morphology and permeability
21. Size exclusion properties of polyelectrolyte complex microcapsules prepared from sodium cellulose sulphate and poly(diallyldimethylammonium chloride)
22. Alginate-polylysine microcapsules of controlled membrane molecular weight cut-off for mammalian cell culture engineering
23. Enzyme and chemical encapsulation in polymeric microcapsules
24. Protection of islets of Langerhans from anitbodies by microencapsulation with alginate-poly-L-lysine membranes
25. Permeability of alginate microcapsules to secretory recombinant gene-products
26. Transmembrane permeability of chitosan/carboxymethyl-cellulose capsule
27. Microcapsule of alginate-chitosan. II. A study of capsule stability and permeability
28. Alginate polycation microcapsules II. Some functional properties
29. Effect of preparation method and characteristics of chitosan on the mechanical and release properties of the prepared capsule
30. Evaluation of modified alginate-chitosan polyethylen glycol microcapsules for cell encapsulation
31. Alginate polylysine microcapsules as immune barrier: Permeability of cytokines and immunoglobulins over the capsule membrane
32. Control and measurement of permeability for design of microcapsule cell delivery system
33. Water soluble polymers for immunoisolation II: Evaluation of multicomponent microencapsulation systems
34. The molecular weight cut-off of microcapsules is determined by the reaction between alginate and polylysine
35. Evaluation of microcapsule permeability via inverse size exclusion chromatography
36. Physico-chemical characterization of Ca-alginate microcapsules produced with different methods
37. Polydisperse dextran as a diffusing test solute to study the membrane permeability of alginate polylysine microcapsules
38. An encapsulation system for the immunoisolation of pancreatic islets
39. Permeability characteristic of polyelectrolyte complex capsule membranes: Effect of preparation condition on permeability
40. Synthesis and release studies of oil-containing poly(vinyl alcohol) microcapsules
41. The permeability of EUDRAGIT RL and HEMA-MMA microcapsules to glucose and inulin
42. Functional capsule membranes. 26. Permeability control of polymer-grafted capsule membranes responding to ambient pH changes
43. Characterization of small molecules diffusion in hydrogel-membrane liquid core capsules
44. Mathematical modelling of protein diffusion in microcapsules: A comparison with experimental results
45. Characterization of modified alginate-poly-l-lysine microcapsules
46. A theory of gel filtration and its experimental verification
47. Determination of the pore size distribution of membranes by gel permeation chromatography
48. Rheological properties and mechanical stability of new gel-entrapment systems applied in bioreactors
49. Mechanical strength of single microcapsules determined by a novel micromanipulation technique
50. A study of the physical strength of fenitrothion microcapsules
51. Chitosan-carboxymethylcellulose hydrogels as supports for cell immobilization
52. Mechanical properties of semipermeable microcapsules
53. Shear breakage of nylon membrane microcapsules in a turbine reactor
54. Encapsulation of various recombinant mammalian cell types in different alginate microcapsules
55. Quantitative method for the evaluation of biomicrocapsule resistance to mechanical stress
56. Surface modification of alginate/poly(l-lysin) microcapsular membranes with poly(ethylen glycol) and poly(vinyl alcohol)
57. Generation of alginate-poly-L-lysine-alginate (APA) biomicrocapsules: The relationship between the membrane strength and the reaction conditions
58. Polymers for biomedical applications: Improvement of the interface compatibility
59. X-Ray photoelectron spectroscopy (XPS) surface analysis of HEMA-MMA microcapsules
60. Physicochemical and biological studies of corona-treated artificial membranes used for pancreatic-islet encapsulation ñ mechanism of diffusion and interface modification
61. Size dependence of polymer composition in the surface layer of poly(acrylamide-co-acrylic acid) hydrogel microspheres
62. Electrophoretic 3D-mobility profiles of latex particles with different surface groups
63. Ultrastructural examination of pancreatic islet containing alginate/polyaminoacidic coherent microcapsules
64. Polyelectrolyte complex formation at the interface of solutions
65. Studies on the pH-dependent swelling properties and morphologies of chitosan/calcium-alginate complexed beads
66. Selected Aspects of the Microencapsulation of Mammalian Cells in HEMA-MMA
67. Preparation of microcapsules of strong polyelectrolyte couples by one-step complex surface precipitation
68. Production of alginate beads by emulsification/internal gelation. I. Methodology
69. An experimental investigation on the structure of microcapsules