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JOURNAL OF SYNTHETIC CRYSTALS ›› 2021, Vol. 50 ›› Issue (4): 629-647.

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Applying Crystallization Theory to Reshape Future of Cocoon Silk Soft Materials

QIU Wu1,2, LIU Xiangyang1   

  1. 1. State Key Laboratory of Marine Environmental Science, College of Ocean and Earth Sciences, Xiamen University, Xiamen 361005, China;
    2. Department of Physics, National University of Singapore, Singapore 117551, Singapore
  • Received:2021-03-05 Online:2021-04-15 Published:2021-05-21

Abstract: Attributed to advanced structrual characterization techniques, mesoscopic hierarchical structures as well as crystal network structures are revealed in different varieties of soft materials including silk fibroin materials. Noting the close correlation between mesoscopic structures (especially the crystal network structures) and macroscopic performance of silk fibroin materials, comprehensive investigations on the formation of crystallites and crystal network are utmost important. Based on latest research studying on how silk fibroin molecules refold into higher levels of structures within silk fibroin materials, it is determined that the crystallization theory can well predict the formation process of silk fibroin materials and the corresponding kinetics. Nevertheless, the rational design and mesoscopic reconstruction of silk fibroin materials can be implemented by controlling the molecular crystallization, such as crystal density, orientation degree, doped molecular nucleation intiator and so on, which endows noval functions to silk fibroin materials and other soft materials.

Key words: crystallization: soft material, crystallization kinetics, crystal network, mesoscopic structure, mesoscopic functionalization

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