c832be2d_Facts_and_figures___SciDev_Net__Product
[How it works] A combination of polymers and nanoparticles that draws in water ions and repels dissolved salts [Importance] Already on the market, this membrane enables desalination with lower energy costs than reverse osmosis [Developer] University of California, Los Angeles and NanoH2O [Product] 
Desalination membrane
Nanotechnology for clean water: Facts and figures - SciDev.Net