Towards Understanding Why a Superhydrophobic Coating Is Needed by Water Striders

Abstract

Gold threads modified with superhydrophobic or normal hydrophobic coatings are used as a model system in the study of the contribution of the superhydrophobic coating of a water strider to its floating and movement on the water surface. After depositing Pt aggregates on one of its ends (see figure), the gold threads are able to move in the H2O2 aqueous solution. The superhydrophobic coating decreases fluidic drag during motion. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2089/2007/c0752_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.