Patent ID: 7789943

Claim:
A composition of matter, comprising: a plurality of metal clusters; a plurality of amphiphilic ligands, each ligand comprising: a hydrophobic moiety; a first hydrophilic moiety; and a second hydrophilic moiety; wherein: the first hydrophilic moiety bonds to a first metal cluster; the second hydrophilic moiety bonds to a second metal cluster; the plurality of metal clusters are bonded to a plurality of amphiphilic ligands to form a tri-layer, the tri-layer comprising: a first layer of amphiphilic ligands; and a second layer of amphiphilic ligands, wherein the plurality of metal clus-' ters are located between, and bonded to, the first amphiphilic ligand layer and the second amphiphilic ligand layer to form a third layer of the tri-layer; and wherein: a plurality of tri-layers are held in proximity with each other; and the plurality of tri-layers comprise pores having temperature-adjustable pore openings.