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Structure and interaction of silk fibroin and graphene oxide in concentrated solution under shear
- Source :
- International Journal of Biological Macromolecules. 107:2590-2597
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- Considering the high biocompatibility of regenerated silk fibroin (RSF) and the good enhancement effect of graphene oxide (GO), various RSF/GO composite materials have been previously investigated, and found that GO plays a vital role in the fabrication of high-performance RSF/GO materials. However, its effects on the structure of RSF solution are unclear. Therefore, in this work, we studied the rheological and optical properties, as well as the aggregation behavior of concentrated RSF/GO solution in response to applied shear. The results demonstrated that the presence of GO sheets in RSF solution increased the shear resistance, while delayed the sol-gel transition. Moreover, GO sheets were not favorable to the formation of the ordered structures of RSF. The results from small angle X-ray scattering (SAXS) of RSF/GO solution also showed that the shear process promoted the formation of RSF/GO interface. The data also provided insights into the structural evolution within the mixture solutions, which can be beneficial to the future design and fabrication of nanofiller-reinforced high-performance materials.
- Subjects :
- Materials science
Biocompatibility
Oxide
Fibroin
02 engineering and technology
010402 general chemistry
01 natural sciences
Biochemistry
law.invention
chemistry.chemical_compound
X-Ray Diffraction
Rheology
Structural Biology
law
Scattering, Small Angle
Animals
Graphite
Molecular Biology
Viscosity
Small-angle X-ray scattering
Graphene
General Medicine
Bombyx
021001 nanoscience & nanotechnology
0104 chemical sciences
Solutions
Shear (sheet metal)
Chemical engineering
chemistry
Stress, Mechanical
Fibroins
0210 nano-technology
Subjects
Details
- ISSN :
- 01418130
- Volume :
- 107
- Database :
- OpenAIRE
- Journal :
- International Journal of Biological Macromolecules
- Accession number :
- edsair.doi.dedup.....20731b389c9ef26a366e0833e51ec5b6