i read about Biomimicry use for water or fog harvesting plz provide more info on it

$1.$What lab tests and equipment and methods, tools are used for finding surface chemistry For Hydrophobicity of a surface

Eg $.$ Lotus leaf etc

$2.$Are there any calculations or simulations also needed? If so please say why and what kind of calculations will he needed

$3.$ What kind of tests should be done specifically for Water harvesting applications

$4.$ What factors do be considered for a water harvesting application surface $($ surface chemistry$)/$

$5.$ Other things except Hydrophobicity is considered?

$6.$ Can bio inspired surfaces also he used for fog harvesting? $($ mesh $)$