| 학회 |
한국고분자학회 |
| 학술대회 |
2009년 봄 (04/09 ~ 04/10, 대전컨벤션센터) |
| 권호 |
34권 1호 |
| 발표분야 |
분자 자기조립에 의한 나노기술 |
| 제목 |
Size-Dependent Isotropic-Nematic Phase Transition Behaviors of Liquid Crystalline Peptide Nanowires |
| 초록 |
We present size-tunable assembly of peptide nanowires and their corresponding liquid crystalline phase behaviors. An aromatic peptide molecule of diphenylalanine was rapidly assembled into one-dimensional nanowires, whose sizes were tunable according to the initial concentration of diphenylalanine in the preparing solution. The stable dispersion of peptide nanowires in an organic solvent exhibited colloidal nematic liquid crystalline phases. The liquid crystalline phase transition was governed by the repulsive electrostatic interaction among peptide nanowires as well as their shape anisotropy and polydispersity. Our work provides an interesting model system to investigate the liquid crystalline phase behaviors of a biomolecular assembly in terms of its assembled morphology and intermolecular interactions. |
| 저자 |
박지선, 한태희, 오준균, 김상욱
|
| 소속 |
카이스트 신소재공학과 |
| 키워드 |
바이오소재; 펩타이드; 자기조립; 액정
|
| E-Mail |
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