| 학회 |
한국고분자학회 |
| 학술대회 |
2019년 봄 (04/10 ~ 04/12, 부산컨벤션센터(BEXCO)) |
| 권호 |
44권 1호 |
| 발표분야 |
콜로이드 및 분자조립 부문위원회 |
| 제목 |
Peptide Encoded Chirality Evolution in Single Nanoparticle |
| 초록 |
Chiral structure controlled at nanoscale provides a new route to achieve intriguing optical properties such as polarization control and negative refractive index. However, asymmetric structure control with nanometer precision is difficult to accomplish due to limited resolution and complex processes of conventional methods. Here, we demonstrated novel chiral gold nanostructures exploiting chirality transfer between peptide and high-Miller-index gold surfaces. Enantioselective adsorption of peptides results in unequal development of nanoparticle surface and this asymmetric evolution leads to highly twisted chiral element in single nanoparticle making unprecedented 432 helicoid morphology. The synthesized helicoid nanoparticle showed strong optical activity which was substantiated by distinct transmittance color change of helicoid solution under polarized light. |
| 저자 |
남기태 |
| 소속 |
서울대 |
| 키워드 |
Chiral; Peptide; Plasmonics; Nanoparticle
|
| E-Mail |
|
