Morphology and thermal stability of silk fibroin/starch blended microparticles
In the present study biodegradable microparticles of silk fibroin (SF)/starch blends were prepared by a simple water-in-oil emulsion solvent diffusion technique. SF/starch blended solution and ethyl acetate were used as water and oil phases, respectively. The influence of SF/starch ratios on charact...
| Format: | Article |
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| Language: | English |
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Budapest University of Technology
2010-12-01
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| Series: | eXPRESS Polymer Letters |
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| Online Access: | http://www.expresspolymlett.com/letolt.php?file=EPL-0001683&mi=cd |
| _version_ | 1819033718399959040 |
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| collection | DOAJ |
| description | In the present study biodegradable microparticles of silk fibroin (SF)/starch blends were prepared by a simple water-in-oil emulsion solvent diffusion technique. SF/starch blended solution and ethyl acetate were used as water and oil phases, respectively. The influence of SF/starch ratios on characteristics of the blended microparticles was investigated. The SF conformation of microparticle matrices from FTIR analysis was changed from random coil to β-sheet form by blending with starch. The blended microparticles had lower dissolution in water than those of SF and starch microparticles. The 1/3 (w/w) SF/starch blended microparticles exhibited the lowest dissolution. The SF and starch microparticles showed irregular and deflated shapes, respectively. The blended microparticles were nearly spherical in shapes and smaller sizes. Thermal stability of the blended microparticles slightly increased with the starch blended ratio. The results suggested that SF conformational transition, thermal stability, morphology and dissolution of the blended microparticles can be adjusted by varying the blended ratio. |
| first_indexed | 2024-12-21T07:22:17Z |
| format | Article |
| id | doaj.art-9a372885f98d45c4807d2014cbf8478f |
| institution | Directory Open Access Journal |
| issn | 1788-618X |
| language | English |
| last_indexed | 2024-12-21T07:22:17Z |
| publishDate | 2010-12-01 |
| publisher | Budapest University of Technology |
| record_format | Article |
| series | eXPRESS Polymer Letters |
| spelling | doaj.art-9a372885f98d45c4807d2014cbf8478f2022-12-21T19:11:45ZengBudapest University of TechnologyeXPRESS Polymer Letters1788-618X2010-12-0141278178910.3144/expresspolymlett.2010.94Morphology and thermal stability of silk fibroin/starch blended microparticlesIn the present study biodegradable microparticles of silk fibroin (SF)/starch blends were prepared by a simple water-in-oil emulsion solvent diffusion technique. SF/starch blended solution and ethyl acetate were used as water and oil phases, respectively. The influence of SF/starch ratios on characteristics of the blended microparticles was investigated. The SF conformation of microparticle matrices from FTIR analysis was changed from random coil to β-sheet form by blending with starch. The blended microparticles had lower dissolution in water than those of SF and starch microparticles. The 1/3 (w/w) SF/starch blended microparticles exhibited the lowest dissolution. The SF and starch microparticles showed irregular and deflated shapes, respectively. The blended microparticles were nearly spherical in shapes and smaller sizes. Thermal stability of the blended microparticles slightly increased with the starch blended ratio. The results suggested that SF conformational transition, thermal stability, morphology and dissolution of the blended microparticles can be adjusted by varying the blended ratio.http://www.expresspolymlett.com/letolt.php?file=EPL-0001683&mi=cdBiopolymers, biocompositessilk fibroinstarchmorphologythermal properties |
| spellingShingle | Morphology and thermal stability of silk fibroin/starch blended microparticles eXPRESS Polymer Letters Biopolymers, biocomposites silk fibroin starch morphology thermal properties |
| title | Morphology and thermal stability of silk fibroin/starch blended microparticles |
| title_full | Morphology and thermal stability of silk fibroin/starch blended microparticles |
| title_fullStr | Morphology and thermal stability of silk fibroin/starch blended microparticles |
| title_full_unstemmed | Morphology and thermal stability of silk fibroin/starch blended microparticles |
| title_short | Morphology and thermal stability of silk fibroin/starch blended microparticles |
| title_sort | morphology and thermal stability of silk fibroin starch blended microparticles |
| topic | Biopolymers, biocomposites silk fibroin starch morphology thermal properties |
| url | http://www.expresspolymlett.com/letolt.php?file=EPL-0001683&mi=cd |