Abnormal Bending of Micro-Cantilever Plate Inducecd by a Droplet
The abnormal bending of a micro-cantilever plate induced by a droplet is of great interest and of significance in micro/nano-manipulations. In this study, the physical mechanism of this abnormal phenomenon induced by an actual droplet is elucidated. Firstly, the morphologies of 2D and 3D droplets are solved analytically or numerically. Then the Laplace pressure difference acting on the cantilever plate caused by the droplet is presented. Finally, the deflections of the micro-cantilever plates driven by the capillary forces are quantitatively analyzed. These analytical results may be beneficial to some engineering applications, such as micro-sensors, MEMS and the micro/nano-measurement.
Key wordsmicro-cantilever plate surface tension Laplace pressure difference abnormal bending deflection
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- Liu, J.L., Feng, X.Q., Wang, G.F. and Yu, S.W., Mechanisms of superhydrophobicity on hydrophilic substrates. Journal of Physics: Condensed Matter, 2007, 19: 356002.Google Scholar
- Liu, J.L., 2D analytical solutions of the liquid bridge surrounding a punch. International Journal of Nanosystem, 2008, 1: 109–113.Google Scholar
- Yu, Y.S., Yang, Z.Y. and Zhao, Y.P., Role of vertical component of surface tension of the droplet on the elastic deformation of PDMS membrane. Journal of Adhesion Science and Technology, 2008, 22: 687–698.Google Scholar