Abstract
As a strategy for regulating entropy, thermal annealing is a commonly adopted approach for controlling dynamic pathways in colloid assembly. By coupling DNA strand-displacement circuits with DNA-functionalized colloid assembly, we developed an enthalpy-mediated strategy for achieving the same goal while working at a constant temperature. Using this tractable approach allows colloidal bonding to be programmed for synchronization with colloid assembly, thereby realizing the optimal programmability of DNA-functionalized colloids. We applied this strategy to conditionally activate colloid assembly and dynamically switch colloid identities by reconfiguring DNA molecular architectures, thereby achieving orderly structural transformations; leveraging the advantage of room-temperature assembly, we used this method to prepare a lattice of temperature-sensitive proteins and gold nanoparticles. This approach bridges two subfields: dynamic DNA nanotechnology and DNA-functionalized colloid programming.
Funder
National Natural Science Foundation of China
Fundamental Research Funds for the Central Universities
Financial Grant from the China Postdoctoral Science Foundation
National Postdoctoral Program for Innovative Talents
Research Fund of Hefei National Laboratory for Physical Sciences at the Microscale
Open Research Fund of State Key Laboratory of Polymer Physics and Chemistry
Publisher
Proceedings of the National Academy of Sciences
Cited by
28 articles.
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