화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2013년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 38권 2호
발표분야 의료용 고분자 부문위원회
제목 Ultrasmooth materials-independent surface chemistry and nanodepot for nitric oxide using poly(norepinephrine)
초록 Despite the extensive use of polydopamine (pDA) as a coating, the resulting uncontrollable surface morphology after functionalization is still a significant problem associated with pDA surface chemistry. Herein, we report oxidative polymerization of norepinephrine to yield a poly(norepinephrine) (pNE) coating which has nearly perfect smoothness at the nanometer scale. Studies at the Molecular level revealed that a new intermediate, 3,4-dihydroxybenzaldehyde (DHBA), resulted in a remarkable difference in surface morphology compared to pDA. In addition, a novel property was found in which pNE layers can be a universal depot for storing and releasing nitric oxide (NO) as small therapeutics. This property can be useful for various types of biomedical devices which require an NO-releasing functionality.
저자 김지훈1, 홍선기2, 이해신3, 김원종4
소속 1Center for Self-assembly and Complexity, 2Institute for Basic Science (IBS) and Department of Chemistry, 3POSTECH, 4카이스트 화학과
키워드 mussel-inspired; poly(norepinephrine); nitric oxide
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