Kirigami-Design-Enabled Hydrogel Multimorphs with Application as a Multistate Switch

Hao, Xing Peng1; Xu, Zhao2; Li, Chen Yu1; Hong, Wei2,3; Zheng, Qiang1; Wu, Zi Liang1

2020-04-21

10.1002/adma.202000781

ADVANCED MATERIALS   影响因子和分区

0935-9648

1521-4095

Morphing materials have promising applications in soft robots, intelligent devices, and so forth. Among the various design strategies, kirigami structures are recognized as a powerful tool to obtain sophisticated 3D configurations and unprecedented properties from planar designs on common materials. Here, some kirigami designs are demonstrated for programmable, multistable 3D configurations from composite hydrogel sheets. Via photolithographic polymerization, perforated composite hydrogel sheets are fabricated, in which soft and active hydrogel strips are patterned in stiff and passive hydrogel frames. When immersed in water, the gel strips buckle out of plane due to swelling mismatch. In the kirigami structures, the geometric continuity is disrupted by the introduction of cutouts, and thus the degrees of deformation freedom increases remarkably. Multiple configurations are obtained in a single composite hydrogel by controlling the buckling direction of each strip. Multitier configurations are also obtained by using a hierarchically designed kirigami structure. A multicontact switch of an electric circuit is designed by harnessing the multitier gel configurations. Furthermore, a rotation mode is realized by introducing chirality in the kirigami design. The versatile design of the kirigami structure for programmable deformations should be applicable for other intelligent materials toward promising applications in biomedical devices and flexible electronics.

hydrogels kirigami structures morphing configurations multitier programmed deformation

SCI ; EI

英语

NI期刊 ; NI论文

其他

Excellent Youth Foundation of Zhejiang Province of China[LR19E030002]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000527323600001

WILEY-V C H VERLAG GMBH

20201708570836

Flexible electronics ; Hydrogels ; Intelligent materials ; Bridge circuits ; Electric switches ; Swelling ; Intelligent robots

Electronic Equipment, General Purpose and Industrial:715 ; Robot Applications:731.6 ; Colloid Chemistry:801.3 ; Chemical Products Generally:804 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Zhejiang Univ, Minist Educ, Key Lab Macromol Synth & Functionalizat, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China
3.Hokkaido Univ, Global Stn Soft Matter, Global Inst Collaborat Res & Educ, Sapporo, Hokkaido 0600810, Japan

Hao, Xing Peng,Xu, Zhao,Li, Chen Yu,et al. Kirigami-Design-Enabled Hydrogel Multimorphs with Application as a Multistate Switch[J]. ADVANCED MATERIALS,2020,32(22).

Hao, Xing Peng,Xu, Zhao,Li, Chen Yu,Hong, Wei,Zheng, Qiang,&Wu, Zi Liang.(2020).Kirigami-Design-Enabled Hydrogel Multimorphs with Application as a Multistate Switch.ADVANCED MATERIALS,32(22).

Hao, Xing Peng,et al."Kirigami-Design-Enabled Hydrogel Multimorphs with Application as a Multistate Switch".ADVANCED MATERIALS 32.22(2020).