| 학회 |
한국재료학회 |
| 학술대회 |
2016년 봄 (05/18 ~ 05/20, 여수 디오션리조트 ) |
| 권호 |
22권 1호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
Optical Polarization Characteristics of Brush-Aligned DNA films |
| 초록 |
We prepared line-pattern DNA thin films aligned by a brush on quartz substrates. The DNA alignment in one direction was identified through the first-order retardation plate. To analyze the absorption spectrum of line-pattern DNA thin films depending on the aligned direction, we carried out optical polarimetry in the ultraviolet and visible regions. The absorption feature at 260 nm, the π-π* transition, is largely affected by the polarization of light relative to the aligned direction of DNA. The absorbance in the perpendicular direction is larger than that in the parallel direction due to the base pair absorption. The ellipticity increased rapidly around 300 nm, the onset point of base pair absorption. |
| 저자 |
Howon Lee1, Jae Hoon Kim2, Taewoo Ha1, Jong Hyeon Kim2, Young Chan Jo1, Kyung Ik Sim2, Jangwon Kim1, Yun jeong Cha2, Dong Ki Yoon1
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| 소속 |
1Department of Physics, 2Yonsei Univ. |
| 키워드 |
<P>optical polarization; DNA film; polarimetry</P>
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| E-Mail |
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