TY - JOUR
T1 - Crack engineering for the construction of arbitrary hierarchical architectures
AU - Li, Wanbo
AU - Yu, Miao
AU - Sun, Jing
AU - Mochizuki, Kentaro
AU - Chen, Siyu
AU - Zheng, Huanxi
AU - Li, Jiaqian
AU - Yao, Shuhuai
AU - Wu, Hongkai
AU - Ong, Beng S.
AU - Kawata, Satoshi
AU - Wang, Zuankai
AU - Ren, Kangning
N1 - Funding Information:
ACKNOWLEDGMENTS. This work was supported by National Natural Science Foundation of China (51773173), Hong Kong Baptist University (FRG2/17-18/102, SDF 03-17-096, RC-IRMS/16-17/03), Hong Kong Research Grants Council (C1018-17G, 22200515, 11218417), and the Hong Kong Baptist University (HKBU), State Key Laboratory of Environmental and Biological Analysis, “State Key Laboratory - Collaborative Research Fund” (SKLP_1718_P01). We acknowledge Surface Analysis & Material Characterization Laboratory of HKBU for the SEM characterization and Nanosystem Fabrication Facility (NFF) of Hong Kong University of Science and Technology for the 3D laser lithography fabrication.
Funding Information:
This work was supported by National Natural Science Foundation of China (51773173), Hong Kong Baptist University (FRG2/17-18/102, SDF 03-17-096, RC-IRMS/16-17/03), Hong Kong Research Grants Council (C1018-17G, 22200515, 11218417), and the Hong Kong Baptist University (HKBU), State Key Laboratory of Environmental and Biological Analysis, ?State Key Laboratory - Collaborative Research Fund? (SKLP_1718_P01). We acknowledge Surface Analysis & Material Characterization Laboratory of HKBU for the SEM characterization and Nanosystem Fabrication Facility (NFF) of Hong Kong University of Science and Technology for the 3D laser lithography fabrication.
Publisher Copyright:
© 2019 National Academy of Sciences. All rights reserved.
PY - 2019/11/26
Y1 - 2019/11/26
N2 - Three-dimensional hierarchical morphologies widely exist in natural and biomimetic materials, which impart preferential functions including liquid and mass transport, energy conversion, and signal transmission for various applications. While notable progress has been made in the design and manufacturing of various hierarchical materials, the state-of-the-art approaches suffer from limited materials selection, high costs, as well as low processing throughput. Herein, by harnessing the configurable elastic crack engineering—controlled formation and configuration of cracks in elastic materials—an effect normally avoided in various industrial processes, we report the development of a facile and powerful technique that enables the faithful transfer of arbitrary hierarchical structures with broad material compatibility and structural and functional integrity. Our work paves the way for the cost-effective, large-scale production of a variety of flexible, inexpensive, and transparent 3D hierarchical and biomimetic materials.
AB - Three-dimensional hierarchical morphologies widely exist in natural and biomimetic materials, which impart preferential functions including liquid and mass transport, energy conversion, and signal transmission for various applications. While notable progress has been made in the design and manufacturing of various hierarchical materials, the state-of-the-art approaches suffer from limited materials selection, high costs, as well as low processing throughput. Herein, by harnessing the configurable elastic crack engineering—controlled formation and configuration of cracks in elastic materials—an effect normally avoided in various industrial processes, we report the development of a facile and powerful technique that enables the faithful transfer of arbitrary hierarchical structures with broad material compatibility and structural and functional integrity. Our work paves the way for the cost-effective, large-scale production of a variety of flexible, inexpensive, and transparent 3D hierarchical and biomimetic materials.
KW - Biomimetic materials
KW - Configurable elastic crack engineering
KW - hierarchical structures
KW - True 3D replication
UR - http://www.scopus.com/inward/record.url?scp=85075538666&partnerID=8YFLogxK
U2 - 10.1073/pnas.1915332116
DO - 10.1073/pnas.1915332116
M3 - Journal article
C2 - 31699816
AN - SCOPUS:85075538666
SN - 0027-8424
VL - 116
SP - 23909
EP - 23914
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
IS - 48
ER -