Premium
Micropillar Arrays: Enhancement of Magneto‐Mechanical Actuation of Micropillar Arrays by Anisotropic Stress Distribution (Small 38/2020)
Author(s) -
Park Jeong Eun,
Jeon Jisoo,
Park Sei Jin,
Won Sukyoung,
Ku Zahyun,
Wie Jeong Jae
Publication year - 2020
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.202070206
Subject(s) - materials science , anisotropy , magnetic field , bending , magneto , stress (linguistics) , composite material , particle (ecology) , nanotechnology , optoelectronics , optics , mechanical engineering , magnet , physics , engineering , linguistics , philosophy , oceanography , quantum mechanics , geology
In the article number 2003179, Jeong Jae Wie and co‐workers report enhanced twisting or bending actuation of rectangular micropillars containing pre‐programmed horizontal or vertical magnetic particle alignment. Anisotropic stress distributions of rectangular pillars drastically enhance magneto‐mechanical actuation of micropillars in comparison to square micropillars. Magnetically deformed micropillars are selectively shape‐fixed by local evaporative assembly of polymeric solution even after removal of the magnetic field.