Extended Data Fig. 9: Surface functionalization of engineering solids.
From: Dry double-sided tape for adhesion of wet tissues and devices

a, Primary amine functionalization of silicon, titanium and PDMS, and subsequent covalent coupling between the primary amine groups and the NHS ester groups in the DST. b, Primary amine functionalization of polycarbonate, and subsequent covalent coupling between the primary amine groups and the NHS ester groups in the DST. c, Primary amine functionalization of polyimide, and subsequent covalent coupling between the primary amine groups and the NHS ester groups in the DST.