Fig. 1.

Preparation of FN nanofibers with FN-based fiducial marks. (A) 10 µm wide, fluorescently conjugated FN lines were first microcontact printed onto a PIPAAm coated coverslip. (B) A second PDMS stamp was coated with FN and brought orthogonally into conformal contact with the 10 µm wide FN lines on PIPAAm. (C) The 10 µm wide lines were then released onto the FN coated stamp through the dissolution of PIPAAm. (D) The FN coated PDMS stamp with 10 µm wide FN fiducial marks was then microcontact printed onto a new PIPAAm coated coverslip and the FN nanofibers could be released by subsequent thermally triggered dissolution of PIPAAm.