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Biomimetic Thermal-sensitive Multi-transform Actuator

Journal Article


Abstract


  • Controllable and miniaturised mechanical actuation is one of the main challenges facing various

    emerging technologies, such as soft robotics, drug delivery systems, and microfluidics. Here we

    introduce a simple method for constructing actuating devices with programmable complex motions.

    Thermally responsive hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) and its functionalized

    derivatives (f-PNIPAM) were used to control the lower critical solution temperature (LCST) or the

    temperature at which the gel volume changes. Techniques for ultra-violet crosslinking the monomer

    solutions were developed to generate gel sheets with controllable crosslink density gradients that

    allowed bending actuation to specified curvatures by heating through the LCST. Simple molding

    processes were then used to construct multi-transform devices with complex shape changes, including

    a bioinspired artificial flower that shows blossoming and reverse blossoming with a change in

    temperature.

Authors


  •   Kim, Tae Hyeob. (external author)
  •   Choi, Jung Gi. (external author)
  •   Byun, Ju Young. (external author)
  •   Jang, Yongwoo (external author)
  •   Kim, Sung Min. (external author)
  •   Spinks, Geoff M.
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2019

Citation


  • Kim, T. Hyeob., Choi, J. Gi., Byun, J. Young., Jang, Y., Kim, S. Min., Spinks, G. M. & Kim, S. Jeong. (2019). Biomimetic Thermal-sensitive Multi-transform Actuator. Scientific Reports, 9 7905-1-7905-7.

Scopus Eid


  • 2-s2.0-85067016571

Start Page


  • 7905-1

End Page


  • 7905-7

Volume


  • 9

Place Of Publication


  • United Kingdom

Abstract


  • Controllable and miniaturised mechanical actuation is one of the main challenges facing various

    emerging technologies, such as soft robotics, drug delivery systems, and microfluidics. Here we

    introduce a simple method for constructing actuating devices with programmable complex motions.

    Thermally responsive hydrogels based on poly(N-isopropylacrylamide) (PNIPAM) and its functionalized

    derivatives (f-PNIPAM) were used to control the lower critical solution temperature (LCST) or the

    temperature at which the gel volume changes. Techniques for ultra-violet crosslinking the monomer

    solutions were developed to generate gel sheets with controllable crosslink density gradients that

    allowed bending actuation to specified curvatures by heating through the LCST. Simple molding

    processes were then used to construct multi-transform devices with complex shape changes, including

    a bioinspired artificial flower that shows blossoming and reverse blossoming with a change in

    temperature.

Authors


  •   Kim, Tae Hyeob. (external author)
  •   Choi, Jung Gi. (external author)
  •   Byun, Ju Young. (external author)
  •   Jang, Yongwoo (external author)
  •   Kim, Sung Min. (external author)
  •   Spinks, Geoff M.
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2019

Citation


  • Kim, T. Hyeob., Choi, J. Gi., Byun, J. Young., Jang, Y., Kim, S. Min., Spinks, G. M. & Kim, S. Jeong. (2019). Biomimetic Thermal-sensitive Multi-transform Actuator. Scientific Reports, 9 7905-1-7905-7.

Scopus Eid


  • 2-s2.0-85067016571

Start Page


  • 7905-1

End Page


  • 7905-7

Volume


  • 9

Place Of Publication


  • United Kingdom