| 학회 | 한국공업화학회 |
| 학술대회 | 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU)) |
| 권호 | 26권 1호 |
| 발표분야 | 학생우수논문발표(석사과정) |
| 제목 | Stepwise and Reproducible Magnetic Self-Assembly of Micropillar Arrays |
| 초록 | Magnetic self-assembly has been demonstrated for spherical colloidal particles and polymer composites by external magnetic field with advantage of remote controllability. However, magnetic interactions often prevent regular assembly of multi-objects. Toward stepwise and reproducible self-assembly, we employed magnetic micropillar arrays whose pillar-top is highly concentrated with magnetic particles while pillar-base is magnetically-inert. With response to external linear magnetic field, micropillars behave as dipolar micro-magnets, and subsequently, two adjacent micropillars are paired via quadrupolar magnetic attraction. As magnetic flux density increases, the closely arranged micropillar pairs are sequentially assembled to quad-body and eventually linearly connective architectures with long-range order. We will discuss governing parameters for the stepwise magnetic assembly including micropillar geometry, magnetic field threshold, and magnetic field angles. |
| 저자 | 박정은, 위정재 |
| 소속 | 인하대 |
| 키워드 | magnetic composite; micropillar arrays; self-assembly; shape-reconfigurable |
