| 학회 |
한국화학공학회 |
| 학술대회 |
2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 |
28권 1호, p.1303 |
| 발표분야 |
[주제 12] 화학공학일반(부문위원회 발표) |
| 제목 |
Hierarchical self-constructed biomolecular nanolayers comprising cholesterol and cholesteryl hemisuccinate for automatic array of liquid crystals |
| 초록 |
A hierarchical biomolecular nanolayer strategy involving cholesterol and cholesteryl hemisuccinate has been proposed for the automatic alignment of liquid crystals using programmed interfacial self-assembly of amphiphilic biomolecules on polar electrode surfaces. Spontaneous formation of ultrathin biomolecular nanolayers was achieved by simple doping and in situ self-organization of small amounts of steroid-based amphiphiles in confined LC cells. Cholesterol and cholesteryl hemisuccinate self-assemble on the ITO surface via interfacial hydrogen bonding to form hydrophobic biomolecular nanolayers and induce uniform vertical alignment of LCs. Surface analysis showed that amphiphilic biomolecules of cholesterol and cholesteryl hemisuccinate form hydrophobic self-organized nanolayers with dense surface coverage on the surface of ITO electrodes via hydrogen bonding. Nanolayers containing hydrophobic steroid groups and alkyl chains on the surface induced vertical alignment of LCs via van der Waals forces. LC cells containing the proposed steroid-based amphiphilic medium provided low threshold voltages and fast response times comparable to conventional polyimide alignment films. |
| 저자 |
박찬범, 박지성, 김소연, 김도현, 김상희, 신규진, 이준협
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| 소속 |
숭실대 |
| 키워드 |
이동현상(Transport Phenomena) |
| E-Mail |
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| 원문파일 |
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