| 학회 |
한국공업화학회 |
| 학술대회 |
2012년 가을 (10/31 ~ 11/02, 대전컨벤션센터) |
| 권호 |
16권 2호 |
| 발표분야 |
포스터-나노 |
| 제목 |
Control of Interfacial Curvature to Form Highly Ordered 2D Structures by Peptide Assembly |
| 초록 |
Peptide is information-rich biopolymer that allow for the sequence-specific assembly. Especially, tyrosine is one of the most significant amino acid that determine the folding geometry of multi-protein organization and facilitate proton-coupled electron transport. For example, protonation and deprotonation of hydroxyl group in tyrosine can be coupled with photo-excitation in chlorophyll, that allow for the efficient electron transport in photosystem II and also induce abrupt folding change in photoactive yellow proteins. Here, we have identified specific sequences of tyrosine mediated peptides that can form densely packed, rigid two dimensional structure at air/water interface and then consequently modify its curvature. Atomic force microscopy (AFM) analysis along the film edges shows the evidence of film stacking of multiple thin nanosheets and the minimum thickness is 1.4 nm. Such facet formation of a water drop has never been observed previously and has significant implications for understanding the molecular dynamics of interfaces. |
| 저자 |
장형석1, 이정호1, 김영오1, 박용선1, 권민경2, 장윤호2, 남기태1, 이윤식1
|
| 소속 |
1서울대, 2인하대 |
| 키워드 |
peptide; assembly; sheet; 2 demension
|
| E-Mail |
|
