Method for fabrication of a molecular filter and apparatus formed by the same

An apparatus comprising:

• a multilayered structure having at least a top layer, a middle layer and a bottom layer adjacent to each other, where said middle layer has a thickness, d;
• at least a first hole in said top layer and through said middle layer;
• at least a second hole in said bottom layer and through said middle layer, said first and second holes being offset from one another;
• and
• a channel between said first and second holes in said middle layer so that only objects having a size of d or smaller may traverse said multilayered structure through said first and second holes and said channel.

A nano-scale filter comprising:

• a top layer;
• a middle layer disposed adjacent to said top layer, where said middle layer has a thickness, d;
• a bottom layer disposed adjacent to said middle layer;
• a first plurality of holes defined in said top layer and through said middle layer;
• a second plurality of holes defined in said bottom layer and through said middle layer, said first and second plurality of holes being offset from one another;
• and
• at least one nano-scale channel between said first and second plurality of holes in said middle layer so that only objects having a size of d or smaller may traverse said filter through said first and second plurality of holes and said channel.