Journal
CARBOHYDRATE POLYMERS
Volume 229, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2019.115515
Keywords
Composite films; Chitosan; Silk; Mechanical properties
Categories
Funding
- National Natural Science Foundation of China [51763001, 51403142]
- Suzhou Planning Project of Science and Technology [SYS201732, SYS2018052, SYS2019005]
- Pre-Research Project of the Second Affiliated Hospital of Soochow University [SDFEYBS1801]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
Ask authors/readers for more resources
Chitosan-silk biocomposite films with nanofibrous structures have been prepared by facile solution casting of chitosan and silk co-dissolved in formic acid. The morphology, structure and mechanical properties of the chitosan-silk biocomposite were characterized by SEM, FTIR, TG-DSC, and mechanical testing. The results demonstrate that the prepared biocomposite films with a chitosan-silk ratio of 3:1 shows a high tensile strength of 97.8 MPa, a strain at break of 10.8% and a Young's modulus of 3.5 GPa, indicating its high strength and elasticity. Also, the preliminary cell culture experiment demonstrated the ideal biocompatibility of chitosan-silk composite films. As a result the superior mechanical properties of this composite film can be attributed to the silk nanofibrils and chitosan self-assembled nanofibers, and the strong hydrogen bonding interaction between the silk nanofibril and chitosan nanofibers. The specific nanostructure, enhanced mechanical properties, and biocompatibility make the biocomposite films a promising material for applications in biomedical devices.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available