Magnetic-Responsive Superhydrophobic Surface of Magnetorheological Elastomers Mimicking from Lotus Leaves to Rose Petals

• DOI: 10.1021/acs.langmuir.0c03122
• Publication Date: 2021-02-05T20:02:51Z
• Authors: Shiwei Chen; Minghui Zhu; Yuanhao Zhang; Shuai Dong; Xiaojie Wang
• Keywords: Lotus effect; Petal

In nature, many plants have evolved various wettability surfaces to survive and thrive in diverse environments. For example, the superhydrophobic surface of lotus can keep itself clean, while rose petals retain droplets for a long time. The former is referred "lotus effect," latter known as "rose petal effect." This research proposes method fabricate magnetic-responsive magnetorheological elastomers (MREs) which could reversibly instantly transition their wetting state between effect" These with controllable find applications manipulation liquids biological chemical systems. MREs are cured by applying uniform magnetic field form "mountain-like" microstructures on surfaces. initial rough exhibits leaf effect. Because nonuniform magnetically induced deformation, micromorphology roughness be altered an applied field. water its changed from Wenzel Cassie-Baxter (CB) state. Therefore, proposed MRE switch dynamic features petals" leaves" via An experimental platform established characterize behaviors drops under A magneto-mechanic coupled model interpret how influences well droplet movement.