期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 33, 期 8, 页码 5051-5057出版社
ELSEVIER
DOI: 10.1016/j.msec.2013.08.032
关键词
Hydrogels; Keratin; Human hair; Wool; Electron beam irradiation; Poly(ethylene imine)
资金
- Ministry of Education, Science Technology (MEST)
- National Research Foundation of Korea (NRF) [2012H1B8A2025931, 2012-C-0043-010120]
- Leaders in Industry-University Cooperation Project
- Ministry of Education, Science & Technology (MEST)
- National Research Foundation of Korea [2012H1B8A2025931] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The biocompatible and highly porous keratin-based hydrogels were prepared using electron beam irradiation (EBI). The conditions for keratin-based hydrogel formation were investigated depending on several conditions, including the presence of poly(vinyl alcohol) (PVA), concentration of keratin solution, EBI dose, and poly(ethylene imine) (PEI) additives. The pure keratin (human hair and wool) aqueous solution was not gelled by EBI, while the aqueous keratin solutions blended with PVA were gelled at an EBI dose of more than 90 kGy. Furthermore, in the presence of PEI, the aqueous keratin solution blended with PVA could be gelled at a considerably lower EBI dose, even at 10 kGy. This finding suggests that the PEI additives significantly influence the rate of gelation and that PEIs function as an accelerator during gelation. The resulting keratin-based hydrogels were characterized using scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), gel fraction, degree of swelling, gel strength, and kinetics of swelling analyses. (C) 2013 Elsevier B.V. All rights reserved.
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