|학술대회||2015년 봄 (05/14 ~ 05/15, 구미코)|
|발표분야||B. 바이오/화학 재료|
|제목||Alignment control of DNA LC phase|
|초록||Organization of biopolymer is significant for not only an evolution of a biological system but also construction of material for well-defined nanostructures. Recently, several researchers have investigated a formation of Liquid crystalline pattern of semi-flexible biopolymers such as a DNA and actin filaments.[1,2] However, the pattern of biopolymers was formed on restricted area that makes this intriguing patterns hard to utilize in useful applications.
Here, we produced liquid crystalline pattern of DNA with zigzag structure by an undulation of DNA film in drying process. The pattern was formed in large area and even on a desired position such as confined geometries of the micro-channel. We also show a periodicity of the zigzag pattern controlled depends on the DNA film thickness. The zigzag pattern was analyzed by polarized optical microscopy (POM) and atomic force microscopy (AFM). The pattern in large area can provide applications to bio-template for nanoparticles or other biomaterials and electrical nano-device.
 Laurent Vonna et al., Langmuir, 21, 9635-9643 (2005).
 Ivan I. Smalyukh et al., PRL 96, 177801 (2006).
|키워드||<P>DNA; Alignment; LC</P>|