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United States Department of Agriculture

Agricultural Research Service

Research Project: GENOMICS AND PROTEOMICS OF STORED-PRODUCT INSECTS FOR DEVELOPMENT OF NEW BIOPESTICIDES Title: Insect Cuticle As a Biomimetic Material

Authors
item Eichler, C - UNIVERSITY OF KANSAS
item Lomakin, J - UNIVERSITY OF KANSAS
item Arakane, Y - KANSAS STATE UNIV
item Kramer, K - 5430-05-30 RETIRED
item Kanost, M - KANSAS STATE UNIV
item Gehrke, S - UNIVERSITY OF KANSAS
item Beeman, Richard

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: October 30, 2005
Publication Date: February 15, 2006
Citation: Eichler, C., Lomakin, J., Arakane, Y., Kramer, K.J., Kanost, M.R., Gehrke, S.H., Beeman, R.W. 2006. Insect cuticle as a biomimetic material, p. 4309-4313. In: A. Peppas, J.Z. Hilt, editors, Proceedings of American Institute of Chemical Engineers Annual Meeting, October 30-November 4, 2005.

Technical Abstract: Insect cuticle’s superb mechanical characteristics, as determined by a variety of mechanical tests, are speculated to originate in its dual network structure comprised of chitin and protein enzymatically cross-linked by catechol derivatives. This work examines the mechanical properties of both native insect cuticle and biomimetic hydrogels based on a dual network motif. This research has both basic aspects—understanding the origin of the mechanical properties of insect cuticle in terms of the relationships between its components—and applied aspects in developing a simplified version of this motif to produce a dual network hydrogel with improved strength and durability, two characteristics important in biomedical and other applications of gels. The interactions between proteins, chitin, and catechols were examined via dynamic mechanical testing and ultimate property tests using a Rheometrics RSA III Dynamic Mechanical Analyzer. Native insect cuticle was studied at several different stages throughout its tanning process (also known as sclerotization and believed to be the result of a chemical cross-linking process).

Last Modified: 10/20/2014
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