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Micromachines 2013, 4(2), 128-137; doi:10.3390/mi4020128

Photomechanical Bending of Azobenzene-Based Photochromic Molecular Fibers

Department of Applied Chemistry, Muroran Institute of Technology, 27-1, Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan
Author to whom correspondence should be addressed.
Received: 31 December 2012 / Revised: 28 January 2013 / Accepted: 1 March 2013 / Published: 27 March 2013
(This article belongs to the Special Issue Glass Micromachining and Applications of Glass)
View Full-Text   |   Download PDF [2331 KB, uploaded 27 March 2013]   |  


Microfibers composed of azobenzene-based photochromic amorphous molecular materials, namely low molecular-mass photochromic materials with a glass-forming property, could be fabricated. These fibers were found to exhibit mechanical bending motion upon irradiation with a laser beam. In addition, the bending direction could be controlled by altering the polarization direction of the irradiated light without changing the position of the light source or the wavelength of the light. In-situ fluorescence observation of mass transport induced at the surface of the fiber doped with CdSe quantum dots suggested that the bending motions were related with the photoinduced mass transport taking place near the irradiated surface of the fiber. View Full-Text
Keywords: photomechanical effect; photochromic molecular fiber; azobenzene; photoinduced mass transport; bending motion; CdSe quantum dot photomechanical effect; photochromic molecular fiber; azobenzene; photoinduced mass transport; bending motion; CdSe quantum dot

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Nakano, H.; Ichikawa, R.; Matsui, R. Photomechanical Bending of Azobenzene-Based Photochromic Molecular Fibers. Micromachines 2013, 4, 128-137.

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