Inkless Microcontact Printing on SAMs of Boc- and TBS-Protected Thiols

We report a new inkless catalytic mu CP technique that achieves accurate, Fast, and complete pattern reproduction on SAMS of Boc- and TBS-protected thiols immobilized on gold using a polyurethane-acrylate stamp functionalized with covalently bound, sulfonic acids. Pattern transfer is complete at room temperature just after one minute of contact and renders sub-200 nm size structures of chemically differentiated SAMS.