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  • 08월 28일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Effect of binding mode on the photoluminescence of CTMA-DNA doped with (E)-2-(2-(4-(diethylamino)styryl)-4H-pyran-4-ylidene)malononitrile

등록일
2008년 8월 11일 18시 04분 28초
접수번호
0750
발표코드
28P54포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅰ>
발표형식
포스터
발표분야
고분자화학
저자 및
공동저자
이정은, 이어라, 조민주, 김경환, 진정일, 최동훈
고려대학교 화학과, Korea
The purified natural DNA extracted from salmon sperm can be dissolved only in water. It is not soluble in any of the organic solvent; therefore, we modified the structure of natural DNA and changed its solubility. The preparation of organic soluble DNA was carried out by precipitating the purified DNA in water with a cationic surfactant such as Cetyltrimethylammonium chloride (CTMA). The resulting DNA-lipid complex shows good solubility in alcohol and allow us to fabricate thin films for studying their photophysical properties in a solid state. The absorption and photoluminescence (PL) behaviors of CTMA-DNA and polymethylmethacrylate (PMMA) doped with (E)-2-(2-(4-(diethylamino)styryl)-4H-pyran-4-ylidene)malononitrile (DCM). We observed the different PL spectral behaviors with the concentration of DCM in two different host materials. This was explained by a proper mechanism based on intercalation or groove binding of fluorescent dye into the base pairs of CTMA-DNA.

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