English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Adaptations for wear resistance and damage resilience : micromechanics of spider cuticular “tools”

Tadayon, M., Younes-Metzler, O., Shelef, Y., Zaslansky, P., Rechels, A., Berner, A., et al. (2020). Adaptations for wear resistance and damage resilience: micromechanics of spider cuticular “tools”. Advanced Functional Materials, 2000400. doi:10.1002/adfm.202000400.

Item is

Basic

show hide
Item Permalink: http://hdl.handle.net/21.11116/0000-0006-9E2E-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0006-9E2F-5
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Tadayon, Maryam1, Author              
Younes-Metzler, Osnat1, Author              
Shelef, Yaniv, Author
Zaslansky, Paul, Author
Rechels, Alon, Author
Berner, Alex, Author
Zolotoyabko, Emil, Author
Barth, Friedrich G., Author
Fratzl, Peter2, Author              
Bar-On, Benny, Author
Politi, Yael1, Author              
Affiliations:
1Yael Politi, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863297              
2Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863294              

Content

show
hide
Free keywords: abrasion resistance, biopolymers, metal-ion cross-linking, microstructure, tribological behavior
 Abstract: In the absence of minerals as stiffening agents, insects and spiders often use metal-ion cross-linking of protein matrices in their fully organic load-bearing "tools". In this comparative study, the hierarchical fiber architecture, elemental distribution, and the micromechanical properties of the manganese- and calcium-rich cuticle of the claws of the spider Cupiennius salei, and the Zn-rich cuticle of the cheliceral fangs of the same animal are analyzed. By correlating experimental results to finite element analysis, functional microstructural and compositional adaptations are inferred leading to remarkable damage resilience and abrasion tolerance, respectively. The results further reveal that the incorporation of both zinc and manganese/calcium correlates well with increased biomaterial's stiffness and hardness. However, the abrasion-resistance of the claw material cross-linked by incorporation of Mn/Ca-ions surpasses that of many other non-mineralized biological counterparts and is comparable to that of the fang with more than triple Zn content. These biomaterial-adaptation paradigms for enhanced wear-resistance may serve as novel design principles for advanced, high-performance, functional surfaces, and graded materials.

Details

show
hide
Language(s): eng - English
 Dates: 2020-06-25
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1002/adfm.202000400
PMID: 0591
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Advanced Functional Materials
  Other : Adv. Funct. Mater.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Weinheim : Wiley-VCH Verlag GmbH
Pages: - Volume / Issue: - Sequence Number: 2000400 Start / End Page: - Identifier: ISSN: 1616-301X