スエマツ　ノブヒコ   SUEMATSU Nobuhiko   末松　信彦    所属   明治大学  総合数理学部    職種   専任教授
言語種別	英語
発行・発表の年月	2021/02
形態種別	学術雑誌
査読	査読あり
標題	Electric field assisted motion of a mercury droplet.
執筆形態	共著(筆頭者以外)
掲載誌名	Scientific reports
掲載区分	国外
巻・号・頁	11(1),pp.2753
総ページ数	11
国際共著	国際共著
著者・共著者	Holló Gábor, Suematsu Nobuhiko J, Ginder Elliott, Lagzi István
概要	Field-assisted self-assembly, motion, and manipulation of droplets have gained much attention in the past decades. We exhibit an electric field manipulation of the motion of a liquid metal (mercury) droplet submerged in a conductive liquid medium (a solution of sulfuric acid). A mercury droplet moves toward the cathode and its path selection is always given by the steepest descent of the local electric field potential. Utilizing this unique behavior, we present several examples of droplet motions, including maze solving, electro-levitation, and motion on a diverted path between parallel electrodes by controlling the conductivity of the medium. We also present an experimental demonstration of Fermat's principle in a non-optical system, namely a mercury droplet moving along a refracted path between electrodes in a domain having two different conductivities.
DOI	10.1038/s41598-020-80375-1
ISSN	2045-2322
PMID	33531526