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Design of Superior Spider Silk: From Nanostructure to Mechanical Properties
Open accessAbstract
Spider dragline silk is of practical interest because of its excellent mechanical properties. However, the structure of this material is still largely unknown. In this article, we report what we believe is a new model of the hierarchical structure of silk based on scanning electron microscope and atomic force microscope images. This hierarchical structure includes beta-sheet, polypeptide chain network, and silk fibril. It turns out that an exceptionally high strength of the spider dragline silk can be obtained by decreasing the size of the crystalline nodes in the polypeptide chain network while increasing the degree of orientation of the crystalline nodes. Based on this understanding, how the reeling speed affects mechanical properties of spider dragline silk can be understood properly. Hopefully, the understanding obtained in this study will shed light on the formation of spider silk, and consequently, on the principles for the design of ultrastrong silk.
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Cited by
Structures, mechanical properties and applications of silk fibroin materials
Koh, L.-D., Cheng, Y., Teng, C.-P., Khin, Y.-W., Loh, X.-J., Tee, S.-Y., Low, M., Ye, E., Yu, H.-D., Zhang, Y.-W., et al. (2015) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2015.02.001 · Cited by 1,241
Nanofibrils in nature and materials engineering
Ling, S., Kaplan, D. L., & Buehler, M. J. (2018) · Nature Reviews Materials · doi:10.1038/natrevmats.2018.16 · Cited by 730
Li, Z., Zhu, Y., Niu, W., Yang, X., Jiang, Z., Lu, Z., Liu, X., & Sun, J. (2021) · Advanced Materials · doi:10.1002/adma.202101498 · Cited by 668
Self-citationUncovering the structure–function relationship in spider silk
Yarger, J. L., Cherry, B. R., & van der Vaart, A. (2018) · Nature Reviews Materials · doi:10.1038/natrevmats.2018.8 · Cited by 357
Structural Origin of the Strain‐Hardening of Spider Silk
Du, N., Yang, Z., Liu, X. Y., Li, Y., & Xu, H. Y. (2011) · Advanced Functional Materials · doi:10.1002/adfm.201001397 · Cited by 290
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Metadata
- Authors
- Du, N., Liu, X. Y., Narayanan, J., Li, L., Lim, M. L. M., & Li, D.
- Venue
- Biophysical Journal
- Publisher
- Elsevier BV
- Published
- 2006-12
- Volume
- 91
- Issue
- 12
- Pages
- 4528-4535
- ISSN
- 0006-3495 (ISSN-L)
- OpenAlex
- W2139737836
- Cited by
- 361
- References
- 0
- FWCI
- 2.79
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Du, N., Liu, X. Y., Narayanan, J., Li, L., Lim, M. L. M., & Li, D. (2006). Design of Superior Spider Silk: From Nanostructure to Mechanical Properties. Biophysical Journal. https://doi.org/10.1529/biophysj.106.089144
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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