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Effect of drying method on mechanical, thermal and water absorption properties of enzymatically crosslinked gelatin hydrogels

Overview of attention for article published in Anais da Academia Brasileira de Ciências, May 2017
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Title
Effect of drying method on mechanical, thermal and water absorption properties of enzymatically crosslinked gelatin hydrogels
Published in
Anais da Academia Brasileira de Ciências, May 2017
DOI 10.1590/0001-3765201720160241
Pubmed ID
Authors

RAYSSA C. SIMONI, GISLAINE F. LEMES, SANDRA FIALHO, ODINEI H. GONÇALVES, ANGELA M. GOZZO, VIVIANE CHIARADIA, CLAUDIA SAYER, MARIANNE A. SHIRAI, FERNANDA V. LEIMANN

Abstract

Enzymatically crossliked gelatin hydrogel was submitted to two different drying methods: air drying and freeze drying. The resulting polymeric tridimensional arrangement (compact or porous, respectively) led to different thermal and swelling properties. Significant differences (p < 0.05) on thermal and mechanical characteristics as well as swelling in non-enzymatic gastric and intestinal simulated fluids (37 ºC) were detected. Water absorption data in such media was modelled according to Higuchi, Korsmeyer-Peppas, and Peppas-Sahlin equations. Freeze dried hydrogel showed Fickian diffusion behavior while air dried hydrogels presented poor adjustment to Higuchi model suggesting the importance of the relaxation mechanism at the beginning of swelling process. It was possible to conclude that the same gelatin hydrogel may be suitable to different applications depending on the drying process used.

Mendeley readers

The data shown below were compiled from readership statistics for 63 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 63 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 15 24%
Student > Master 14 22%
Student > Ph. D. Student 7 11%
Professor 6 10%
Researcher 3 5%
Other 8 13%
Unknown 10 16%
Readers by discipline Count As %
Engineering 20 32%
Materials Science 10 16%
Chemistry 5 8%
Agricultural and Biological Sciences 4 6%
Biochemistry, Genetics and Molecular Biology 3 5%
Other 9 14%
Unknown 12 19%