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Post-printing surface modification and functionalization of 3D-printed biomedical device
3D-printed components for built-in electrochemical technique for post-3D printing surface functionaliza-
sensing. Polydopamine can also mediate the immobi- tion.
lization of a wide range of materials using a one-pot Besides polydopamine, other methods that add
reaction to achieve versatile chemical functionality functional groups to 3D-printed components have al-
(Figure 3) [32] . Because of the simple coating procedure so been proposed (Figure 4). Take initiator integrated
and versatile functions of polydopamine, it is an ideal 3D-printing for example [39] . The functional groups on
Figure 3. Schematics of polydopamine-mediated surface functionalization. Reproduced [32] with the permission from Wiley.
Figure 4. Schematics of initiator integrated 3D printing. Functional groups are embedded in the 3D-printed parts by incorporating
Br-containing vinyl-terminated initiator. Reproduced [39] with the permission from Royal Chemistry Society.
96 International Journal of Bioprinting (2017)–Volume 3, Issue 2
