Nanoscale Protein Patterning by Imprint Lithography

Abstract

Selective localization of active proteins to patterns or specific sites is important for development of biosensors, bioMEMS, tissue engineering, and basic proteomic research. We present a flexible technique for selectively patterning bioactive proteins with nanoscale resolution using nanoimprint lithography and fluoropolymer surface passivation, and exploiting the specificity of the biotin/streptavidin linkage. This technique achieves high throughput reproducible nanoscale protein patterns with high selectivity and retained biofunctionality, as demonstrated by interactions between patterned antibodies and their antigen.