| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 자기조립형 기능성재료 |
| 제목 | The Adhesion Mechanism of Gecko Foot-Hair: Atomistic Molecular Dynamics Simulation Approach |
| 초록 | We performed a molecular dynamics (MD) simulation modeling a chemical force microscope (CFM) stylus covered with ß keratins in order to investigate the adhesion mechanism of gecko foot-hair on various surfaces. Before attaching to the stylus, the twisted ß-sheet structure of ß keratin is generated using CHARMM program. The primary structure of ß keratin, selected from the sequence of lizard claw, consists of Gly-Gly-Cys and Gly-Pro-Gly repeats, which are known to form ß-sheets and turns, respectively. Mechanical properties are determined in order to deduce the parameters for coarse-grained simulation. Dynamic adhesion and friction between a chemical force microscopic (CFM) stylus and a surface is modeled by changing the vertical and lateral position of CFM stylus. Adhesion and friction forces of ß keratins to various surfaces are determined and compared to that of synthetic fibers. Fig. 1. The Molecular Structure of ß Keratin. |
| 저자 | 김혜원, 허준, 조원호 |
| 소속 | 서울대 |
| 키워드 | gecko foot hair; beta keratin; molecular dynamics simulation |
