The section of material enable designer to discover a material which has ability to enhance a surface for a product.
These four features are collected in the section of material which is aiming for protect form water, solid, dirt and other substance.
For example, the ability of self-cleaning can be found from sacred lotus.
The hydrophobic leaves can reduce contact time with water drops because its life principle.
Besides, the function of anti- fouling was found on the white rock shell.
The shedding of the outer layer and have ability to protect form physical, mechanical and chemical defence.