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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Bio-inspired surface wrinkle structures templated by self-assembled M13 bacteriophages

2019년 8월 29일 16시 29분 30초
MAT.P-385 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (목요일) 11:00~12:30
Material Chemistry
저자 및
Won-Geun Kim, Jin-Woo Oh1,*
Nano-Convergence Technology, Pusan National University, Korea
1Department of Nanoenergy Engineering, Pusan National University, Korea
Surface wrinkling can be observed when compressive force is applied to the laminated materials consisting of a stiff film and compliant substrate. The instability caused by the difference in elastic modulus between film and substrate results in the wrinkle surfaces which are minimizing the total energy of the system. In nature, almost every animal has been developed flexion creases on the wrinkling area of the skin to make smooth wrinkling and folding of the skin. For human, palmer creases are very important for delicate motion. Inspired from elaborate and complicated motion of human hand, we introduced bioinspired artificial palmer creases (APC) to achieve well-controlled wrinkle surface. APC was prepared by self-assembly of M13 bacteriophage. M13 bacteriophage is one kind of filamentous bacteriophage. Due to the excellent self-assembly property and genetic engineering technique, M13 bacteriophage have been utilized in many research areas such as colorimetric sensors, bio-imaging systems, energy harvesting devices and optical devices. By controlling self-assembly conditions, we prepared semectically assembled M13 bacteriophage films with different periodicity of defects. When the compressive force is applied to APC, wrinkle surface is formed along with APC. According to the simulation results, strain localization at the defect of semctic film can be observed. Moreover, various types of APC leads to the specific wrinkle surface with different morphologies. We expect that our novel wrinkle surface fabrication method can be used to fabricate unique optical or electrical devices .