Journal
ADVANCED SCIENCE
Volume 7, Issue 23, Pages -Publisher
WILEY
DOI: 10.1002/advs.202002025
Keywords
additive manufacture; flexible spacing coating; heterogeneous materials; macroscopic supramolecular assembly; multivalent host; guest interactions
Categories
Funding
- National Science Foundation for Distinguished Young Scholars [51925301]
- National Natural Science Foundation of China [21972008, 21674009]
- Science Fund for Distinguished Young Scholars of Beijing Natural Science Foundation [JQ180003]
- Fundamental Research Funds for the Central Universities [XK1902]
- Open Project of State Key Laboratory [sklssm202021, KF1820]
- Wanren Plan [wrjh201903]
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Integration of diverse materials into 3D ordered structures is urgently required for advanced manufacture owing to increase in demand for high-performance products. Most additive manufacturing techniques mainly focus on simply combining different equipment, while interfacial binding of distinctive materials remains a fundamental problem. Increasing studies on macroscopic supramolecular assembly (MSA) have revealed efficient interfacial interactions based on multivalency of supramolecular interactions facilitated by a flexible spacing coating. To demonstrate facile fabrication of 3D heterogeneous ordered structures, the combination of MSA and magnetic field-assisted alignment has been developed as a new methodology for in situ integration of a wide range of materials, including elastomer, resin, plastics, metal, and quartz glass, with modulus ranging from tens of MPa to over 70 GPa. Assembly of single material, coassembly of two to four distinctive materials, and 3D alignment of bridge-like and cross-stacked heterogeneous structures are demonstrated. This methodology has provided a new solution to mild and efficient assembly of multiple materials at the macroscopic scale, which holds promise for advanced fabrication in fields of tissue engineering, electronic devices, and actuators.
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