Rapid Transfer‐Based Micropatterning and Dry Etching of Silk Microstructures

The silk transfer applied micropatterning (STAMP) method enables patterning of large area silk fibroin protein films with metallic microfabricated features. All processing is performed under ambient conditions in an aqueous environment. The micropatterns fabricated enable masking of biopolymer films for dry etching to produce protein-based metamaterial structures.