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| SIMONI,RAYSSA C.; LEMES,GISLAINE F.; FIALHO,SANDRA; GONÇALVES,ODINEI H.; GOZZO,ANGELA M.; CHIARADIA,VIVIANE; SAYER,CLAUDIA; SHIRAI,MARIANNE A.; LEIMANN,FERNANDA V.. |
| 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... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Air drying; Freeze drying; Hydrogel; Transglutaminase. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000200745 |
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