TY - JOUR
T1 - 4D Printed Hydrogels
T2 - Fabrication, Materials, and Applications
AU - Dong, Yuting
AU - Wang, Shancheng
AU - Ke, Yujie
AU - Ding, Liucheng
AU - Zeng, Xianting
AU - Magdassi, Shlomo
AU - Long, Yi
N1 - Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
PY - 2020/6/1
Y1 - 2020/6/1
N2 - 4D printed objects are 3D printed structures whose shape, property, and functionality are able to self-transform when exposed to a predetermined stimulus. The emerging field of 4D printing has attracted wide interest from both academia and industry since first introduced in 2013. Stimuli-responsive hydrogels have become a competitive and versatile group of materials for 4D printed devices due to their good deformability, promising biocompatibility, simple manufacturing, and low cost. This review aims to provide a summary of the current progress of hydrogel-based 4D printed objects and devices based on their fabrication techniques, materials, and applications. Herein, presented are: the characteristics of different additive manufacturing methods such as direct ink writing, fused deposition modeling, and stereolithography; the properties of various stimuli-responsive hydrogels such as poly(N-isopropylacrylamide) and poly(N,N-dimethylacrylamide), alginate, etc.; and diverse applications of 4D printed hydrogels such as actuators, cellular scaffolds, and drug release devices. Opportunities and challenges for 4D printed hydrogels are discussed and prospects for future development are elaborated.
AB - 4D printed objects are 3D printed structures whose shape, property, and functionality are able to self-transform when exposed to a predetermined stimulus. The emerging field of 4D printing has attracted wide interest from both academia and industry since first introduced in 2013. Stimuli-responsive hydrogels have become a competitive and versatile group of materials for 4D printed devices due to their good deformability, promising biocompatibility, simple manufacturing, and low cost. This review aims to provide a summary of the current progress of hydrogel-based 4D printed objects and devices based on their fabrication techniques, materials, and applications. Herein, presented are: the characteristics of different additive manufacturing methods such as direct ink writing, fused deposition modeling, and stereolithography; the properties of various stimuli-responsive hydrogels such as poly(N-isopropylacrylamide) and poly(N,N-dimethylacrylamide), alginate, etc.; and diverse applications of 4D printed hydrogels such as actuators, cellular scaffolds, and drug release devices. Opportunities and challenges for 4D printed hydrogels are discussed and prospects for future development are elaborated.
KW - 3D printing
KW - 4D printing
KW - additive manufacturing
KW - stimuli-responsive hydrogels
UR - http://www.scopus.com/inward/record.url?scp=85082970725&partnerID=8YFLogxK
U2 - 10.1002/admt.202000034
DO - 10.1002/admt.202000034
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AN - SCOPUS:85082970725
SN - 2365-709X
VL - 5
JO - Advanced Materials Technologies
JF - Advanced Materials Technologies
IS - 6
M1 - 2000034
ER -
