Learning from the Nature – Artificial Lotus Effect
Published on 27 January 2021

Previously we have shared with you a master of superhydrophobicity in nature – lotus leaf. In fact, we have applied the lotus effect in our daily lives as well. In recent years, superhydrophobic spray has been on market to endow the surfaces of clothes, shoes and building materials with extreme water repellency and dirt-proof ability like the lotus leaves. By applying the spray on a marble maze, water droplets can be used in place of the marbles!

Superhydrophobicity can also be applied in product containers. Have you noticed that when a viscous liquid product such as honey or tomato sauce is almost used up, the last bit always remains inside the bottle and is annoyingly hard to get out? It is a plain waste of food. If food grade superhydrophobic coatings are applied on the interior of packaging containers, even the last few drops of products, no matter how viscous, can be poured out and no food is wasted.

If you want to create the lotus effect for yourself, read on for the simple experiment. Dissolve some clear silicone sealant in paint thinner. Then, soak the cotton fabric in the solution for a while. After the fabric dried, water droplets can roll on the surface (Note: Kids should ask an adult for help. Be sure to conduct the experiment in a well-ventilated place, and do not inhale the volatiles from the paint thinner or be close to the fire).

DIY Lotus Effect