Nanofibers of Silk Fibroin Controlled by the Crystallization of Polyethylene Glycol in Frozen Solution

Cong-heng Chen; Juan Zhao; Zhou Yang; Qing Sun; Ping Zhou

doi:10.1007/s10118-017-1974-x

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Nanofibers of Silk Fibroin Controlled by the Crystallization of Polyethylene Glycol in Frozen Solution

Papers | Updated：2021-02-18

- Nanofibers of Silk Fibroin Controlled by the Crystallization of Polyethylene Glycol in Frozen Solution
- Chinese Journal of Polymer Science Vol. 35, Issue 11, Pages: 1373-1380(2017)
- Affiliations：
  
  State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai 200433, China
- Author bio：
  
  Ping Zhou(周平), E-mail:pingzhou@fudan.edu.cn
- Funds：
- DOI：10.1007/s10118-017-1974-x
  CLC：
- Received：15 March 2017，
  
  Revised：2017-4-28，
  
  Accepted：08 May 2017，
  
  Published：05 November 2017
- Accepted：
Scan QR Code
Cong-heng Chen, Juan Zhao, Zhou Yang, et al. Nanofibers of Silk Fibroin Controlled by the Crystallization of Polyethylene Glycol in Frozen Solution[J]. Chinese Journal of Polymer Science, 2017, 35(11): 1373-1380.
DOI：

Cong-heng Chen, Juan Zhao, Zhou Yang, et al. Nanofibers of Silk Fibroin Controlled by the Crystallization of Polyethylene Glycol in Frozen Solution[J]. Chinese Journal of Polymer Science, 2017, 35(11): 1373-1380. DOI： 10.1007/s10118-017-1974-x.

摘要

Abstract

The conformation of silk fibroin (SF) frozen with polyethylene glycol (PEG) at a molecular weight from 2 kDa to 20 kDa and a mass ratio of PEG:SF from 1:5 to 10:1 was studied by spectral and microscopic methods. It is found that the conformation transition of SF from random coil to

-sheet could be induced by the stress resulting from PEG crystallization at -20℃

and greatly depended on the cooling rate

PEG:SF mass ratio and PEG molecular weight. These findings provide a new method for the preparation of desired SF nanofibers.

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references

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