Gas-in-liquid foam templating as a method for the production of highly porous scaffolds.

Abstract:

:In the present work, a novel synthetic methodology for the preparation of scaffold of biopolymeric nature is described. In particular, a porous gelatin scaffold was prepared by foam templating. The gas phase, nitrogen, was generated by means of the reaction between sulfamic acid and sodium nitrite in situ a concentrated solution of gelatin and in the presence of a suitable polymeric surfactant in association with sodium dodecyl sulfate. The foam was prepared at a temperature of 45 degrees C and then let gel at 5 degrees C. After purification, the physical gel was auto-cross-linked with EDC and freeze-dried. The scaffold synthesized with this technique presents a morphology characterized by voids of spherical symmetry highly interconnected by a plurality of interconnects, and, as a consequence, is particularly suited for cell culturing. In more quantitative terms, voids and interconnects are characterized by an average diameter of 230 and 90 microm, respectively. Preliminary tests of cell culturing demonstrated the suitability of such a scaffold for tissue engineering applications.

journal_name

Biomacromolecules

journal_title

Biomacromolecules

authors

Barbetta A,Gumiero A,Pecci R,Bedini R,Dentini M

doi

10.1021/bm901051c

subject

Has Abstract

pub_date

2009-12-14 00:00:00

pages

3188-92

issue

12

eissn

1525-7797

issn

1526-4602

journal_volume

10

pub_type

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