A new model extends the theory of elastic phase separation towards nanoscopic structures. Such patterns are frequent in biological systems and also used in nano-engineering to create structural color. With their new insights, the scientists can predict the length scale of nanoscopic patterns and thus control them during production.
A new model developed by scientists from the Max Planck Institute for Dynamics and Self-Organization extends the theory of elastic phase separation towards nanoscopic structures. Such patterns are frequent in biological systems and also used in nano-engineering to create structural color. With their new insights, the scientists can predict the length scale of nanoscopic patterns and thus control them during production.
One way to control structures made by phase separation relies on elasticity: deformations of materials are well-described by elasticity theory on macroscopic scales, for example to explain how a piece of rubber deforms under the effect of force. However, on a nanoscopic scale, materials are not homogeneous anymore and the macroscopic description of the material is insufficient. Instead, the actual arrangement of molecules matters.
The new theory predicts how material properties affect the formed pattern. It can thus help engineers to create specific nanoscopic structures, following physical principles of self-organization that nature exploits.Researchers have experimentally detected the structural change of hydration water confined in the tiny nano-scale pores of layered materials such as clays. Their findings potentially open the door to ...
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