| 초록 |
Organization of gold nanorod (GNR) has been important for many applications because it has tunable optical and electrical properties depending on their orientation. Recently, several researchers have developed a method of controlling orientation of guest material-GNRs using a liquid crystal material as a host medium.[1,2] Here, we successfully controlled the orientation of GNRs by dispersing them in DNA aqueous solution showing liquid crystal phases. Simple shearing of DNA-GNR composite can form various structures such as parallel, perpendicular and zigzag patterns depending on the pulling speed of the shearing substrate, in which the patterns of DNA-GNRs result from the competition between DNA elasticity, DNA-GNR excluded-volume effect and shear-orientation. References [1] Q. Liu et al., Nano Lett. 14, 4071-4077 (2014). [2] Q. Liu et al., Adv. Mater. 26, 7178-7184 (2014). |
