Object Transportation System Mimicking the Cilia of Paramecium aurelia Making Use of the Light‐Controllable Crystal Bending Behavior of a Photochromic Diarylethene. Issue 38 (5th August 2019)

• Record Type: Journal Article
• Authors: Nishimura, Ryo; Fujimoto, Ayako; Yasuda, Nobuhiro; Morimoto, Masakazu; Nagasaka, Tatsuhiro; Sotome, Hikaru; Ito, Syoji; Miyasaka, Hiroshi; Yokojima, Satoshi; Nakamura, Shinichiro; Feringa, Ben L.; Uchida, Kingo
• Is Part Of: Angewandte Chemie international edition. Volume 58:Issue 38(2019)
• Page Start: 13308
• Page End: 13312
• Publication Date: 2019-08-05
• Subjects: crystal growth -- diarylethenes -- object transportation system -- photoactuators -- photochromism; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201907574
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: The design of an object transportation system exploiting the bending behavior of surface‐assembled diarylethene crystals is reported. A photoactuated smart surface based on this system can transport polystyrene beads to a desired area depending on the direction of the incident light. Two main challenges were addressed to accomplish directional motion along a surface: first, the preparation of crystals whose bending behavior depends on the direction of incident light; second, the preparation of a film on which these photochromic crystal plates are aligned. Nuclei generation and nuclear growth engineering were achieved by using a roughness‐controlled dotted microstructured substrate. This system demonstrates how to achieve a mechanical function as shown by remote‐controlled motion along a surface. Abstract : Lights, camera, action ! Diarylethene crystals assembled on a surface bend in response to light irradiation from a certain direction. A photoactuated smart surface based on this system can transport polystyrene beads to a desired area upon application of incident light from the appropriate direction. This system demonstrates the remote‐controlled induction of a mechanical motion along a surface.