| 학회 | 한국재료학회 |
| 학술대회 | 2016년 봄 (05/18 ~ 05/20, 여수 디오션리조트 ) |
| 권호 | 22권 1호 |
| 발표분야 | B. 나노화학/바이오 재료 분과 |
| 제목 | Periodic banded pattern of DNA and its template application |
| 초록 | Assembly of biomaterials is crucial for a fabrication of well-defined nanostructures as well as understanding of biological organization. Recently, several researchers have explored the liquid crystalline pattern formation of semi-flexible biopolymers such as DNA and actin filaments.[1,2] When the aqueous suspensions is concentrated by solvent evaporation, the collective biopolymers forms a lyotropic liquid crystal. At the final stage of drying, a hydrodynamic stress caused by receding a contact line of the solution induce buckling instability, which form banded pattern of semi-flexible polymers. In this study, we successfully fabricated a periodic banded pattern of DNA in a large area by a simple shearing method. When the DNA solution with columnar liquid crystal phase was mechanically sheared on a substrate, the DNA chains trace out zigzag configuration along the shearing direction. The banded pattern of the DNA used as a template to control the arrangement of liquid crystals, and the zigzag structure can provide applications to a bio-template for other biomaterials or functional nanoparticles and electrical nano-devices. References: [1] Ivan I. Smalyukh et al., PRL 96, 177801 (2006). [2] Laurent Vonna et al., Langmuir, 21, 9635-9643 (2005). |
| 저자 | 차윤정, 윤동기 |
| 소속 | KAIST |
| 키워드 | DNA; Self-assembly; Liquid Crystalline pattern; Bio-template |
