Patterned Electrode Assisted One-Step Fabrication of Biomimetic Morphing Hydrogels with Sophisticated Anisotropic Structures

Zhu, Qing Li1; Dai, Chen Fei1; Wagner, Daniel2,3; Khoruzhenko, Olena2,3; Hong, Wei4; Breu, Josef2,3; Zheng, Qiang1; Wu, Zi Liang1

2021-10-01

10.1002/advs.202102353

ADVANCED SCIENCE   影响因子和分区

2198-3844

Anisotropic structures are ubiquitous in nature, affording fascinating morphing behaviors. Biomimetic morphing materials can be developed by spatially controlling the orientations of molecules or nanofillers that produce anisotropic responses and internal stresses under external stimuli. However, it remains a serious challenge to fabricate materials with sophisticated anisotropic architectures. Here, a facile strategy to fabricate morphing hydrogels with elaborately ordered structures of nanosheets, which are oriented under distributed electric field and immobilized by polymerization to form a poly(N-isopropylacrylamide) matrix, is proposed. Diverse sophisticated anisotropic structures are obtained by engineering the electric field through the patterns and relative locations of the electrodes. Upon heating, the monolithic hydrogels with through-thickness and/or in-plane gradients in orientation of the nanosheets deform into various three-dimensional configurations. After incorporating gold nanoparticles, the hydrogels become photoresponsive and capable of programmable motions, for example, dynamic twisting and flipping under spatiotemporal stimuli. Such a strategy of using patterned electrodes to generate distributed electric field should be applicable to systems of liquid crystals or charged particles/molecules to direct orientation or electrophoresis and form functional structures. The biomimetically architectured hydrogels would be ideal materials to develop artificial muscles, soft actuators/robots, and biomedical devices with versatile applications.

biomimetic structures electrical orientations hydrogels morphing materials soft actuators

SCI ; EI

英语

其他

National Natural Science Foundation of China[51973189,51773179] ; Natural Science Foundation of Zhejiang Province of China[LR19E030002] ; German Science Foundation (DFG)[SFB 840]

Chemistry ; Science & Technology - Other Topics ; Materials Science

Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000711527200001

WILEY

20214411101731

Acrylic monomers ; Actuators ; Amides ; Anisotropy ; Biomimetics ; Charged particles ; Crystal orientation ; Electric fields ; Electrodes ; Electrophoresis ; Gold nanoparticles ; Hydrogels ; Liquid crystals ; Nanosheets

Biotechnology:461.8 ; Biology:461.9 ; Electricity: Basic Concepts and Phenomena:701.1 ; Control Equipment:732.1 ; Nanotechnology:761 ; Colloid Chemistry:801.3 ; Electrochemistry:801.4.1 ; Chemical Products Generally:804 ; Organic Compounds:804.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Solid State Physics:933 ; Crystal Lattice:933.1.1

Web of Science

1.Zhejiang Univ, Dept Polymer Sci & Engn, Minist Educ, Key Lab Macromol Synth & Functionalizat, Hangzhou 310027, Peoples R China
2.Univ Bayreuth, Bavarian Polymer Inst, Universitatsstr 30, D-95440 Bayreuth, Germany
3.Univ Bayreuth, Dept Chem, Universitatsstr 30, D-95440 Bayreuth, Germany
4.Southern Univ Sci & Technol, Dept Mech & Aerosp Engn, Shenzhen 518055, Peoples R China

Zhu, Qing Li,Dai, Chen Fei,Wagner, Daniel,et al. Patterned Electrode Assisted One-Step Fabrication of Biomimetic Morphing Hydrogels with Sophisticated Anisotropic Structures[J]. ADVANCED SCIENCE,2021,8.

Zhu, Qing Li.,Dai, Chen Fei.,Wagner, Daniel.,Khoruzhenko, Olena.,Hong, Wei.,...&Wu, Zi Liang.(2021).Patterned Electrode Assisted One-Step Fabrication of Biomimetic Morphing Hydrogels with Sophisticated Anisotropic Structures.ADVANCED SCIENCE,8.

Zhu, Qing Li,et al."Patterned Electrode Assisted One-Step Fabrication of Biomimetic Morphing Hydrogels with Sophisticated Anisotropic Structures".ADVANCED SCIENCE 8(2021).