Magnetochromatic microactuators for a micropixellated color-changing surface.

Kim, Jiyun; Choi, Sung-Eun; Lee, Howon; Kwon, Sunghoon · Adv Mater · 2013

basic_science · Level V

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Abstract

A magnetically tunable chromatic nanocomposite microactuator is proposed, which utilizes the optical and magnetic behaviors of self-assembled super-paramagnetic nanoparticles fixed in a polymeric microstructure. The original color can be programmed during a simple photolithography process, and the color can be changed just by applying and changing an external magnetic field. These microactuators are capable of acting as pixels in a color-changing pattern.