Abstract························································································i List of contents ··············································································ii List of figures ··············································································· iii I. Introduction···············································································1 IⅠ. Experimental Section 2.1 Materials ···········································································4 2.2 Method ·············································································4 2.2.1 Coloration generated by catecholic precursors. ·······················4 2.2.2 Diminished HRP activity by polycatecholamine formation.·········5 2.2.3 Polycatecholamine fabrication by ink-jet printer. ·····················5 2.2.4 3D printed structure using polycatecholamine fabrication. ··········6 III. Results and Discussion·································································7 3.1 Generation of coloration from dopamine and pyrocatechol.············7 3.2 Attenuation of HRP activity by polycatecholamine formation. ········9 3.3 Enrichment of polycatecholamine near printed HRP. ··················10 3.4 Site-specific fabrication using conventional printer.····················11 IV. Conclusion··············································································13 Reference····················································································14 요약문·······················································································15