| 초록 |
Synchronized and reversible three-dimensional reconfiguration was accomplished by magnetic actuation originating from chain-like alignments of magnetic components, iron particles, within micropillars. Twisting and bending actuation was led to horizontal alignments (HA) and vertical alignments (VA) about the micropillars, by applying orthogonal magnetic stimuli. Preceding reports about magnetic actuation have limitations of distributed mechanical momentum induced by symmetric cylindrical geometry of pillars. To concentrate the momentum on desired site, asymmetric geometry was devised on micropillars. Tetragonal and trigonal geometry was investigated by twisting angle and bending angle of micropillars, as a function of magnetic flux density. Understanding about relationships between geometry factor and magneto-mechanical deformation, reconfigurable micron-sized architecture could be applied to microfluidic devices effectively. |
