3D Chiral Micro‐Pinwheels Based on Rolling‐Up Kirigami Technology

• DOI: 10.1002/smtd.202201627
• Publication Date: 2023-04-19T22:21:45Z
• Authors: Kun Wang; Chaojian Hou; Longqing Cong; Wenqi Zhang; Lu Fan; Xiaokai Wang; Lixin Dong

Expanding micro-/nanostructures into 3D ones results not only in boosting structural integration level with compact geometry but also enhancing a device's complexity and functionality. Herein, synergetic micro-/nanoshape transformation is proposed by combining kirigami rolling-up techniques, or kirigami, for the first time. As an example, micro-pinwheels multiple flabella are patterned on pre-stressed bilayer membranes rolled up structures. The designed when they 2D thin film, facilitating of micro-/nanoelement other functionalization processes during patterning, which typically much easier than post-shaping as-fabricated structure removing redundant materials printing. dynamic process simulated using elastic mechanics movable releasing boundary. Mutual competition cooperation among observed whole release process. More importantly, mutual conversion between translation rotation offers reliable platform developing parallel microrobots adaptive micro-antennas. Additionally, chiral micro-pinwheel arrays integrated microfluidic chip successfully applied to detect organic molecules solution terahertz apparatus. With extra actuation, active can potentially serve as base functionalize tunable devices.