Buckling Behaviors at the Interface of Liquid–Solid Systems

Abstract

Buckling patterns are universal in organs of living organisms. Moreover, the functional realization of these organs is precisely dependent on the deformation of buckling structures, which is also related to the effect of interfacial interaction between liquid and solid surfaces. However, the detection of synergistic reaction between the buckling pattern and the effect of liquid–solid interface is absent. Herein, an experimental simulation of buckling behaviors at the solid–liquid interface, that is, by depositing Au atoms on liquid polydimethylsiloxane (PDMS) is developed. Buckling patterns can be directly created at the interface of Au atoms film and liquid PDMS. Furthermore, it is demonstrated that the orientation of buckling structures can be strictly controlled depending on the frame edges placed on the surface of the liquid PDMS before the deposition. Various ordered buckling patterns, such as parallel wrinkles pattern, magnetic‐field‐lines‐like buckling pattern, and bionic patterns, can be prepared depending on this buckling behavior. The experimental simulation of the buckling behavior at the liquid–solid interface is well promoted, which may be further helpful in understanding the effect of interfacial interaction between liquid and solid surfaces.

Periodic fracture behaviour of nanomembranes

“…1a schematically illustrates our method for creating periodic fractures in a stiff/soft bilayer film, which involves simply peeling a pre-prepared bilayer film from a substrate with a 901 bending angle. The bilayer film generally consists of a stiff top layer and a soft substrate layer, which can be prepared by pasting or depositing a stiff membrane on a soft film 21,22 or directly hardening the surface of the soft film using plasma, 23,24 ions, 25 or strong acid/ base 26 treatment. In this chapter, we prepared a bilayer film by treating a poly (dimethylsiloxane) (PDMS) film with oxygen (O 2 ) plasma 23 (see Methods and Materials).…”