Sustratos electrohilados de poli(hidroxibutirato-co-hidroxihexanoato) con glicósidos para reparación de la lesión medular
- I. García Álvarez
- E. García Junceda
- A. Fernández Mayoralas
- Ernesto Doncel Pérez
- L. Garrido
ISSN: 1888-6116
Year of publication: 2014
Volume: 25
Issue: 2
Pages: 63-73
Type: Article
More publications in: Trauma
Abstract
Objective: Preparation of functionalized micro- and submicrofibers by electrospinning of polyesters with glycosides which are structural elements of proteoglycans, for application to the repair of spinal cord lesions. Material and methods: Solutions of poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) with synthetic glycosides were prepared varying systematically the processing conditions. Fiber morphology assessed by scanning electron microscopy. The stability of the interaction between the glycoside and the polymer fiber was evaluated in aqueous medium, and their toxicity in cultures of neural cells. Results: The fiber morphology was altered mainly by the solution parameters. In aqueous medium, the glycoside with a sulfate group was released from fibers at slower rate than the non-sulfated glycoside. The viability of neural cells was not affected by the glycosides. Conclusion: It is possible to fabricate aligned polyester micro fibers with glycosides. Most of the glycoside present in the fibers remains in the substrate after extraction in water for several days. Electrospinning is a very accessible and versatile technique for application to strategies of cellular therapy in spinal cord injuries