Cucurbituril-Regulated Colloidal Dispersions Exhibiting Photocontrolled Rheological Behavior.
Small (Weinheim an der Bergstrasse, Germany)
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Hu, C., Liu, J., Wu, Y., West, K. R., & Scherman, O. (2018). Cucurbituril-Regulated Colloidal Dispersions Exhibiting Photocontrolled Rheological Behavior.. Small (Weinheim an der Bergstrasse, Germany), 14 (14), e1703352. https://doi.org/10.1002/smll.201703352
In-situ photocontrol over shear-thickening of condensed colloidal dispersions is of paramount importance in a wide range of applications including process technology and photorheological fluids. Its development and practicability, however, are hampered by the lack of well-designed photoresponsive systems. Here, we report a colloidal suspension whose rheological behavior is readily switchable between shear-thinning and shear-thickening using an external light stimulus. This smart colloidal solution contains hybrid raspberry-like colloids prepared by employing cucurbituril as a supramolecular linker to assemble functional Fe3O4 nanoparticles onto a silica core. The formed raspberry colloids are photoresponsive and can be reversibly disassembled under UV irradiation.
European Commission (607602)
External DOI: https://doi.org/10.1002/smll.201703352
This record's URL: https://www.repository.cam.ac.uk/handle/1810/274287
Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International, Attribution 4.0 International