Selective functionalization of laser printout patterns on cellulose paper sheets coated with surface-specific peptidesElectronic supplementary information (ESI) available. See DOI: 10.1039/c7ta02524f

Printed and non-printed paper regions are selectively coated with surface-specific peptides, containing either direct functional peptide domains or maleimide to enable post-coating introduction of more complex peptide domains. To introduce specific functional domains onto paper based patterns, the light-controlled nitrile imine tetrazole ene cycloaddition (NITEC) approach is employed as a mild ligation technique. The strategy offers ready access towards the functionalization of paper based materials where structural patterns can be obtained via standard office laser printers. Laser printed patterns on paper are coated with surface-specific peptides and modified via photo-induced ligation to yield functional surfaces.