The experimental study of polyelectrolyte coatings suitability for encapsulation of cells.
Artif Cells Blood Substit Immobil Biotechnol
; 37(5): 187-94, 2009.
Article
em En
| MEDLINE
| ID: mdl-19757233
ABSTRACT
Living cells encapsulated in polymeric shells are receiving increasing attention because of their possible biotechnological and biomedical applications. The aim of this work is to evaluate how different polyelectrolyte coatings, characterized by different numbers of polyelectrolyte layers and by different polyelectrolyte conformations, affect the viability of encapsulated biological material. We demonstrate the ability to individually encapsulate HL-60 cells as well as rat pancreatic islets within polymeric shells consisting of different PE layers using the layer-by-layer process. Coating of HL-60 cells allows for surviving and functioning of cells for all applied PE as well as for different numbers of layers. The islets encapsulated in applied polyelectrolytes exhibited the lower level of mitochondrial activity as compared to non-encapsulated islets. Nevertheless, encapsulated islets exhibited comparable absorbance values during the whole period of culture. Polyelectrolyte coating seems to be a promising way of allowing capsule void volume minimization in a model of encapsulated biological material for local production of biologically active substances.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Polímeros
/
Células
/
Eletrólitos
Limite:
Animals
/
Humans
Idioma:
En
Revista:
Artif Cells Blood Substit Immobil Biotechnol
Assunto da revista:
BIOTECNOLOGIA
/
TRANSPLANTE
Ano de publicação:
2009
Tipo de documento:
Article
País de afiliação:
Polônia