윤동기 (KAIST) | 한빛사논문 > 한빛사

한빛사논문

조회931

KAIST

CV File 397 kb

Adv. Funct. Mater., Version of Record online: 10 OCT 2017 | DOI: 10.1002/adfm.201703790 Highly Aligned Plasmonic Gold Nanorods in a DNA Matrix

Yun Jeong Cha¹, Dae Seok Kim¹ and Dong Ki Yoon^1,2,*¹Graduate School of Nanoscience and Technology, KAIST, Daejeon, Republic of Korea

²Department of Chemistry and KINC, KAIST, Daejeon, Republic of Korea

^*Corresponding author

Abstract

Since the Lycurgus Cup was made in the 4th century, metal nanoparticles have attracted much interest due to the characteristics of the plasmonic and metamaterials that show beautiful colors. Despite these fascinating properties, the practical use is limited because it is difficult to control the orientation of the plasmonic nanoparticles. Here, highly aligned plasmonic gold nanorods are obtained using self-assembled DNA material. Simple mechanical shearing results in long-range DNA-gold nanorod arrays which show parallel, perpendicular, and zigzag configurations due to the competition between the shear force and DNA elasticity. The resulting surface plasmonic resonance properties of the aligned DNA-gold nanorods film show highly polarization-dependent behavior in a large area, which is critical for optical and photonic applications. This simple way to form anisotropic plasmonic films can be used for plasmonic nanoparticles in potential applications such as displays and sensors.

Keywords : DNA; gold nanorods; liquid crystals; orientation control; plasmonics

논문정보

형식Research article
게재일2017년 10월 (BRIC 등록일 2017-10-27)
연구진국내 연구진
분야 바이오·의료융합 > 바이오소재

댓글 작성 로그인

CV 열람하기

연락처 보기