Stimuli-responsive hydrogel microfibers with controlled anisotropic shrinkage and cross-sectional geometries

Shunsuke Nakajima, Ryuji Kawano, Hiroaki Onoe

研究成果: Article査読

26 被引用数 (Scopus)

抄録

Stimuli-responsive microfibers are fabricated by extruding mixed solutions of poly(N-isopropylacrylamide-co-acrylic acid) (pNIPAM-AAc) and sodium alginate (Na-alginate) using a microfluidic spinning system. The fabricated microfibers shrink and swell with temperature and/or pH. By controlling the extruded laminar flow, microfibers capable of anisotropic shrinkage are fabricated. Cross-sectional microscale geometries of microfibers, including double layering and hollowness, are successfully controlled by patterning the laminar flow during microfiber formation, resulting in hydrogels capable of folding/unfolding motions and fluid pumping. In addition, macroscopic 3D-bundle structures are assembled with these microfibers. We believe that our microfibers can be applied to various applications such as soft actuators, soft robots, and micropumps.

本文言語English
ページ(範囲)3710-3719
ページ数10
ジャーナルSoft matter
13
20
DOI
出版ステータスPublished - 2017

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

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