Kefiran cryogels as potential scaffolds for drug delivery and tissue engineering applications

A Kefiran-based scaffold was developed using a freeze gelation technique, and its potential use for both drug delivery system and tissue engineering applications were investigated. This scaffold showed, through micro-computed tomography and scanning electron microscopy, high porosity (82.3 ± 4.4%),...

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Bibliographic Details
Main Author: Radhouani, Hajer (author)
Other Authors: Bicho, D. (author), Gonçalves, C. (author), Maia, F. Raquel (author), Reis, R. L. (author), Oliveira, Joaquim M. (author)
Format: article
Language:eng
Published: 2019
Subjects:
Online Access:http://hdl.handle.net/1822/66350
Country:Portugal
Oai:oai:repositorium.sdum.uminho.pt:1822/66350
Description
Summary:A Kefiran-based scaffold was developed using a freeze gelation technique, and its potential use for both drug delivery system and tissue engineering applications were investigated. This scaffold showed, through micro-computed tomography and scanning electron microscopy, high porosity (82.3 ± 4.4%), thick pore walls (13.4 ± 0.7 μm), aerogel form with foam-like structure, and elastic behaviour (δ = 16 ± 0.7°). Moreover, the Kefiran scaffold degradation showed a delayed profile for over 28 days. The developed scaffold allowed a slow and sustained diclofenac release over two weeks, and the human Adipose-derived Stem Cells, cultured onto the Kefiran scaffold, were metabolically active after 72 h. Therefore, our research suggests that Kefiran cryogel could be a potential candidate for drug delivery of controlled bioactive molecules and tissue engineering scaffolding.