TL;DR: The above image is an over simplified model to my question begging to know whether the permeation behavior exhibited by water droplets through graphene oxide is the top image or the bottom.
I couldn't find information about this anywhere:
It has been confirmed that water vapor and pools of liquid water can pass through graphene oxide films (prepared for stability in water on aluminium substrates) assuming the interlayer distances and quantity of layers are appropriate for optimal passage.
However, I do not know whether or not a droplet of water (placed on one side of graphene oxide) will permeate through the graphene oxide film and emerge intact on the other side of the film. I could simply confirm this by spraying water onto graphene oxide but I cannot make a legitimate film on my own just yet is why I ask. Basically, stated differently, I don't want to end up spraying graphene oxide with water droplets on one side and end up with a stream of water on the other side; they are to ideally remain as droplets.
The question is very simple but also very important in determining to what extent G.O. can be utilized. There are also different studies that conclude different permeation mechanisms for water through G.O. so I can't even reason the answer out on my own. Quite maddening.
Thank you all and sorry for the pure info. extraction but it's for the greater good!
EDIT1: Oh, the preferred droplet max diameter would be 100 micrometers.
EDIT2: Thanks for the reads; I'll try and find the best method for making graphene alumina oxide to try and find the answer on my own. If anyone can point me to the best method meanwhile, that would also be great. Thanks again