
1) Water technology 2) Water treatment
Found on
https://www.crosswordclues.com/clue/perforene

In March 2013, Lockheed Martin announced that it was developing a family of membranes made from graphene, under the trademark Perforene. The most promising application is seawater desalination. With holes as small as one nanometer in diameter, the membranes would trap sodium, chlorine and other ions, while allowing water molecules to pass through ...
Found on
http://en.wikipedia.org/wiki/Perforene
No exact match found.