Patent ID: 8507037

Claim:
A printing method of manufacturing a chromatographic column structure comprising: depositing a static layer of toner to form a predetermined multi-channeled layer; depositing a second layer of one or more toner nodes over the static layer; depositing a top layer of laminate over said toner nodes, said top layer and the multi-channeled layer defining an expansion space, including one or more channels, adjacent said toner nodes; filling the one or more channels with a particulate material that has an affinity with a material to be separated from any fluid that is pumped into the channels; fusing the toners to form a fused toner channels with nodes that are bonded to the top laminate with the particulate material in the fused toner channels; and wherein the toner channels include an entrance port through which a fluid having the material to be separated can be pumped though the particulate material in the one or more channels.