CPC B01D 69/125 (2013.01) [B01D 67/0079 (2013.01); B01D 69/10 (2013.01); B01D 69/12 (2013.01); B01D 69/148 (2013.01); B01D 71/56 (2013.01); B01D 2323/26 (2013.01); B01D 2323/30 (2013.01); B01D 2323/39 (2013.01); B01D 2323/40 (2013.01); B01D 2325/02 (2013.01)] | 16 Claims |
1. A method of preparing a composition comprising:
obtaining a support layer, wherein the support layer is a porous nanofibrous mat, matrix, scaffold, weave, or combination thereof;
coating a polymer and/or oligomer on the support layer to form a mid-layer on the support layer;
forming an outer layer on the mid-layer, wherein the outer layer consists of three to six trilayers, wherein each trilayer consists of a polyamide bilayer and laponite nanoparticles, wherein the trilayer is formed by exposing an acid chloride and diamine to the mid-layer to form the polyamide bilayer and reacting the bilayer with the laponite nanoparticles in a molecular layer-by-layer assembly, wherein the trilayers grow exponentially to provide an outer layer thickness of between about 200 nm and about 4000 nm.
|