A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second...http://www.google.ca/patents/US8104497?utm_source=gb-gplus-sharePatent US8104497 - Microfabricated elastomeric valve and pump systems