Structural and thermal characteristics of photocrosslinked silk fibroin - PEG hydrogel
| Autor: | Chien-Chi Lin, HaeYong Kweon, Kwang-Gill Lee, John C. Bragg, You-Young Jo |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Sonication
technology industry and agriculture Fibroin macromolecular substances 02 engineering and technology Biology 010402 general chemistry 021001 nanoscience & nanotechnology complex mixtures 01 natural sciences 0104 chemical sciences Thermogravimetry chemistry.chemical_compound Photopolymer Differential scanning calorimetry chemistry Chemical engineering PEG ratio Self-healing hydrogels 0210 nano-technology Ethylene glycol |
| Zdroj: | International Journal of Industrial Entomology. 32:35-40 |
| ISSN: | 1598-3579 |
| DOI: | 10.7852/ijie.2016.32.1.35 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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