Endocuticle sclerotisation increases the mechanical stability of cuticle

Lu Yi Wang, Mohsen Jafarpour, Chung Ping Lin, Esther Appel, Stanislav N. Gorb, Hamed Rajabi

研究成果: 雜誌貢獻文章

摘要

The cuticle plays an important role in the evolutionary success of insects. Many studies on insect cuticles have reported a soft, resilin-rich endocuticle. However, a recent study indicated the presence of a sclerotised endocuticle in the weevil Pachyrhynchus sarcitis kotoensis, which contradicts former knowledge. To understand the degree of sclerotisation in the endocuticle of the weevil and its potential function, we first examined the endocuticle by microscopic and staining techniques. We next performed mechanical tests to measure the material properties of the endocuticle, and numerical simulations to predict the structural effect of the sclerotisation. Our results provide the first evidence of the existence of a sclerotised endocuticle and its remarkable function in improving the mechanical stability of the cuticle. This study highlights the finding of a high degree of sclerotisation in the stiff endocuticle of the weevil, especially the matrix surrounding the fibres. This novel case brings new understanding of cuticle properties and gives promising insights into biomaterial design.

原文英語
頁(從 - 到)8272-8278
頁數7
期刊Soft Matter
15
發行號41
DOIs
出版狀態已發佈 - 2019 一月 1

指紋

insects
Mechanical stability
Biocompatible Materials
staining
Materials properties
fibers
Fibers
Computer simulation
matrices
simulation
resilin

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

引用此文

Wang, L. Y., Jafarpour, M., Lin, C. P., Appel, E., Gorb, S. N., & Rajabi, H. (2019). Endocuticle sclerotisation increases the mechanical stability of cuticle. Soft Matter, 15(41), 8272-8278. https://doi.org/10.1039/c9sm01687b

Endocuticle sclerotisation increases the mechanical stability of cuticle. / Wang, Lu Yi; Jafarpour, Mohsen; Lin, Chung Ping; Appel, Esther; Gorb, Stanislav N.; Rajabi, Hamed.

於: Soft Matter, 卷 15, 編號 41, 01.01.2019, p. 8272-8278.

研究成果: 雜誌貢獻文章

Wang, LY, Jafarpour, M, Lin, CP, Appel, E, Gorb, SN & Rajabi, H 2019, 'Endocuticle sclerotisation increases the mechanical stability of cuticle', Soft Matter, 卷 15, 編號 41, 頁 8272-8278. https://doi.org/10.1039/c9sm01687b
Wang LY, Jafarpour M, Lin CP, Appel E, Gorb SN, Rajabi H. Endocuticle sclerotisation increases the mechanical stability of cuticle. Soft Matter. 2019 1月 1;15(41):8272-8278. https://doi.org/10.1039/c9sm01687b
Wang, Lu Yi ; Jafarpour, Mohsen ; Lin, Chung Ping ; Appel, Esther ; Gorb, Stanislav N. ; Rajabi, Hamed. / Endocuticle sclerotisation increases the mechanical stability of cuticle. 於: Soft Matter. 2019 ; 卷 15, 編號 41. 頁 8272-8278.
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