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Morphology, Fibrous Composition and Tensile Properties of Drag-silk Produced by Two Species of Orb Spider by Ping Jiang; Tai-Yong Lv; Yong-Hong Xiao; Meng-Ling Wu; Xin-Jun Liao; Bing Zhou; Cong Guo is a Engineering article available to read on EtoBox.

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## Abstract Silk fibers produced by the orb spiders __Argiope amoena__ and __Nephila clavata__ were examined using scanning electron microscopy. The fibers were produced on a horizontal surface by unanesthetized spiders. The fibers have different morphologies, physical structures, and fibrous compositions broadly consisting of one to four filaments and numerous fibrilliform filaments with varying diameters. The fibers are composed of a wide range of different silk fibrils (e. g. major and minor ampullate or other gland silk). We examined a range of silks produced by orb spiders. The spiders produce different silks for purposes such as web mooring, web radial threads, scaffolding anchoring silk of egg cases. In addition fiber deposited when moving towards prey enmeshed in the web, fiber deposited when returning to the web center, and fiber used to hang vertically downwards from a branch are all different. The studies indicate that these two species of orb spider can spin fibers of diverse complex structures constructed from fibrils from different glands that vary in number, diameter, morphology, and conformation depending on application. We interpret the variation in the silk produc

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Author

Ping Jiang; Tai-Yong Lv; Yong-Hong Xiao; Meng-Ling Wu; Xin-Jun Liao; Bing Zhou; Cong Guo

Publisher

Walter de Gruyter GmbH

Published

2011

Language

EN

Field

Engineering (Physical Sciences)