親水・疎水パターンを設けた溝構造への選択的微粒子整列と微粒子整列開始条件のモデル化

DOI 機関リポジトリ HANDLE 被引用文献1件 参考文献2件 オープンアクセス

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  • Modelling the Start Conditions of Fine Particles Self-assembly in Groove on Hydrophilic/Hydrophobic Patterned Substrate

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Patterned fine particles enable a lot of applications. Hydrophobic/hydrophilic patterning with groove on a substrate is effective in site-selective dip coating in which suspension including particles spreads on desired area and then particles assemble with the evaporation of solvent. This paper aims to construct a model of the self-assembly process including the conditions of assembly start or not on such substrate. We investigated the height and shape of suspension spreading over hydrophilic/hydrophobic patterned groove. In addition, critical local contact angle which determines the self-assembly will start or not was modeled. In order to verify this hypothesis, we examined both effects of change in contact angle on hydrophobic region and groove depth on the particles assembly. It was found that the width can be estimated based on the local contact angle of the spreading profile.

収録刊行物

  • 精密工学会誌

    精密工学会誌 80 (2), 172-176, 2014

    公益社団法人 精密工学会

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