3D Chiral Micro-Pinwheels Based on Rolling-Up Kirigami Technology
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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Detail(s)
Original language | English |
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Article number | 2201627 |
Journal / Publication | Small Methods |
Volume | 7 |
Issue number | 7 |
Online published | 19 Apr 2023 |
Publication status | Published - 20 Jul 2023 |
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DOI | DOI |
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Attachment(s) | Documents
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Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85152969222&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(1b9c3401-941d-4492-9e8c-f468bff21f8c).html |
Abstract
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, a synergetic 3D micro-/nanoshape transformation is proposed by combining kirigami and rolling-up techniques, or rolling-up kirigami, for the first time. As an example, micro-pinwheels with multiple flabella are patterned on pre-stressed bilayer membranes and rolled up into 3D structures. The flabella are designed when they are patterned on a 2D thin film, facilitating the integration of micro-/nanoelement and other functionalization processes during 2D patterning, which is typically much easier than post-shaping an as-fabricated 3D structure by removing redundant materials or 3D printing. The dynamic rolling-up process is simulated using elastic mechanics with a movable releasing boundary. Mutual competition and cooperation among flabella are observed during the whole release process. More importantly, the mutual conversion between translation and rotation offers a reliable platform for developing parallel microrobots and adaptive 3D micro-antennas. Additionally, 3D chiral micro-pinwheel arrays integrated into a microfluidic chip are successfully applied to detect organic molecules in solution using a terahertz apparatus. With an extra actuation, active micro-pinwheels can potentially serve as a base to functionalize 3D kirigami as tunable devices. © 2023 Wiley-VCH GmbH.
Research Area(s)
- flabella, micro-pinwheels, rolling-up kirigami, terahertz detection
Citation Format(s)
3D Chiral Micro-Pinwheels Based on Rolling-Up Kirigami Technology. / Wang, Kun; Hou, Chaojian; Cong, Longqing et al.
In: Small Methods, Vol. 7, No. 7, 2201627, 20.07.2023.
In: Small Methods, Vol. 7, No. 7, 2201627, 20.07.2023.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
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