The toughest recorded spider egg case silks are woven into composites with tear-resistant architectures

Parvez Alam, Danish Otieno, Matin Nuhamunada, Roselyn Anyango, Jared Odoyo, John Odhiambo, Kenneth Onyango

    Research output: Contribution to journalArticleScientificpeer-review

    3 Citations (Scopus)


    In this communication, we report important preliminary evidence for possibly the toughest egg case silk threads recorded to date spun by the hermit spider, Nephilengys cruentata   (G¯=193 MJm− 3). We further elucidate that the egg case itself is woven with a specialised repeat cross-weave that when subjected to tension, drives perpendicular-to-force threads to pile. This piling of threads constrains damage to small areas and retains the architectural integrity of the surrounding egg case material. We deduce that by having ultra-tough threads coupled to a tear resistant architecture, N. cruentata is able to protect its eggs from predators with a considerable level of effectiveness.
    Original languageUndefined/Unknown
    Pages (from-to)195–199
    JournalMaterials Science and Engineering: C
    Publication statusPublished - 2016
    MoE publication typeA1 Journal article-refereed

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