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Studies on the Patterning of Polyimide LB Film and Its Application for Bioelectronic Device  

오세용 (서강대학교 공과대학 화학공학과)
박준규 (서강대학교 공과대학 화학공학과)
정찬문 (연세대학교 문리대학 화학과)
최정우 (서강대학교 공과대학 화학공학과)
Publication Information
Polymer(Korea) / v.26, no.5, 2002 , pp. 634-643 More about this Journal
Abstract
Ultrathin film of polyamic acid having benzene and sulfonyloxyimide moieties was prepared using the Langmuir-Blodgett (LB) technique, and then photosensitive polyimide LB film was obtained by the thermal treatment of precursor polyamic acid multilayers at 200$\^{C}$ for 1 hr. The polyamic acid was synthesized by condensation polymerization under THF and pyridine cosolvent. All monomers and polymers were identified through elemental analysis, FT-IR and $^1$H-NMR spectroscopic measurements. The microarray patterning of photosensitive polyimide LB film on a gold substrate was generated with a deep UV lithography technique. The well-characterized monolayer of cytochrome c was immobilized on the microarray patterns using two different self-assembly processes. Physical and electrochemical properties of the self-assembled cytochrome c monolayer were investigated based on cyclic voltammetry and atomic force microscopy (AFM). Also, its application in bioelectronic device was examined.
Keywords
photosensitive polyimide LB film; micro array pattern; cytochrome c; self-assembly; electrochemical property.;
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