Anything with tiny pores put on the sea will either be covered in life in weeks, or will need anti-fouling painting to avoid rust and life (distroying the effect), or this pores will be filled with lime and mud in no time. A ship hull that is not easily cleanable and can't be polished is creating many new problems.
I could be wrong but translating this to the real life applications seems really complicated to implement. Specially when you can just create a sealed metal box filled with multiple air cameras or a buoy.
My question with this, is that if an air bubble is formed against the surface of the material and thus the water is not touching the surface.. how does the life inside the water attach itself to the surface which it does not touch?
If something gets into even one pore and starts displacing air, that would be enough to break equilibrium, right?