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【[Adv. Funct. Mater.]】Hydrogel Actuator with On-Off Switchable and Color-Tunable Fluorescence Behaviors
作者:Chunxin Ma, Wei Lu, X. Yang, J. He, X. Le, L. Wang, Jiawei Zhang,* M. J.Serpe, Y. Huang, Tao Chen*
關(guān)鍵字:Hydrogel Actuator
論文來源:期刊
具體來源:Adv. Funct. Mater,2018, in press
發(fā)表時間:2018年

An effective approach to develop a novel

macroscopic anisotropic bilayer hydrogel actuator


with on-off switchable fluorescent color-changing function is reported. Through

combining a


collapsed thermo-responsive graphene oxide-poly(N-isopropylacrylamide)

(GO-PNIPAM)


hydrogel layer with a pH-responsive perylene bisimide-functionalized

hyperbranched


polyethylenimine (PBI-HPEI) hydrogel layer via macroscopic supramolecular

assembly, we


obtained a bilayer hydrogel that can be tailored and reswell to form a three

dimensional (3D)


hydrogel actuator. The actuator could undergo complex shape deformation caused

by the


PNIPAM outside layer, then the PBI-HPEI hydrogel inside layer could be unfolded

to trigger


the on-off switch of the pH-responsive fluorescence under the green light

irradiation. This


work will inspire the design and fabrication of novel biomimetic smart

materials with


synergistic functions.