2A2-L09 レーザ駆動Robot-on-a-chipに関する研究 : その2: 自己組織化現象を利用したマイクロツールの作製

概要

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Production of microtools having arbitrary shape by self-organization of microparticles and heat treatment above the glass transition temperature of the microparticles was developed. Polystyrene (PS) microparicles were employed as a material of the microtool. A solution including PS microparticles were dispersed onto the silicone substrate with microtool patterns fabricated by photolithography and etching and introduced to the pattern by gravity force. Microparticles in the pattern aggregate autonomously by surface tension though evaporation of the solution. Aggregated microparticles were fused by heating above the glass transition temperature (100 Celsius degrees). Fused microparticles were detached from the pattern by sonication and employed as microtools. Produced microtool has spherical part since the microtool is made of microparticles. Spherical part is suitable for trapping point of optical tweezers. We demonstrated production of microtools by self-assembly and manipulation of the fabricated microtool on a chip.
一般社団法人日本機械学会の論文
2009-05-25