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RISS 인기검색어
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- 저자 : ( John C. Bragg ) (검색결과 2 건)
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Structural and thermal characteristics of photocrosslinked silk fibroin - PEG hydrogel
Jo, You-Young,Lee, Kwang-Gill,Bragg, John C.,Lin, Chien-Chi,Kweon, HaeYong Korean Society of Sericultural Science 2016 International Journal of Industrial Entomology Vol.32 No.1
Hydrogels are crosslinked hydrophilic matrices for a variety of biomedical applications. Silk fibroin (SF), one of typical natural biomaterials, has been explored as base material for hydrogel. Photocrosslinked SF hydrogel containing poly(ethylene glycol) (PEG) was formulated through visible light initiated thiol-acrylate photopolymerization. The morphological, structural and thermal properties of SF - PEG hydrogel was investigated through scanning electron microscopy, X-ray diffractometry, thermogravimetry, and differential scanning calorimetry. The morphology of SF hydrogel showed dot and uneven surface with network cross-section. X-ray diffraction curves showed that the specific diffraction peaks of PEG were not changed by the intensity of the peaks were affected by sonication. Thermo-degradation behavior of SF - PEG hydrogel sonicated was significantly affected and became complex pattern compared to unsonicated ones. However, the melting endothermic temperature of SF - PEG hydrogel was not changed but the crystalline enthalpy was decreased by gelation and sonication.
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Structural and thermal characteristics of photocrosslinked silk fibroin -PEG hydrogel
( You-young Jo ),( Kwang-gill Lee ),( John C. Bragg ),( Chien-chi Lin ),( Haeyong Kweon ) 한국잠사학회 2016 International Journal of Industrial Entomology Vol.32 No.1
Hydrogels are crosslinked hydrophilic matrices for a variety of biomedical applications. Silk fibroin (SF), one of typical natural biomaterials, has been explored as base material for hydrogel. Photocrosslinked SF hydrogel containing poly(ethylene glycol) (PEG) was formulated through visible light initiated thiol-acrylate photopolymerization. The morphological, structural and thermal properties of SF . PEG hydrogel was investigated through scanning electron microscopy, X-ray diffractometry, thermogravimetry, and differential scanning calorimetry. The morphology of SF hydrogel showed dot and uneven surface with network cross-section. X-ray diffraction curves showed that the specific diffraction peaks of PEG were not changed by the intensity of the peaks were affected by sonication. Thermo-degradation behavior of SF . PEG hydrogel sonicated was significantly affected and became complex pattern compared to unsonicated ones. However, the melting endothermic temperature of SF-PEG hydrogel was not changed but the crystalline enthalpy was decreased by gelation and sonication.
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