4.8 Article

Parallel and Precise Macroscopic Supramolecular Assembly through Prolonged Marangoni Motion

期刊

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 43, 页码 14106-14110

出版社

WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201808294

关键词

macroscopic supramolecular assembly; multivalency; self-assembly; self-propulsion; supramolecular chemistry

资金

  1. National Natural Science Foundation of China [21674009, 21604002]
  2. Open Project of State Key Laboratory of Supramolecular Structure and Materials [sklssm201816]
  3. European Union's Horizon 2020 research and innovation programme [731019]
  4. DFG through the collaborative research center SFB 985

向作者/读者索取更多资源

Macroscopic supramolecular assembly (MSA) is a rising concept in supramolecular science, in which building blocks with sizes exceeding 10m self-assemble into larger structures. MSA faces the challenge of developing appropriate self-propulsion strategies to improve the motility of the macroscopic building blocks. Although the Marangoni effect is an ideal driving force with random motion paths, excessive aggregation of the surfactant and fast decay of motion remain challenging problems. Hence, a molecular interference strategy to drive the self-assembly over longer times by finely controlling the interfacial adsorption of surfactants using dynamic equilibria is proposed. Surfactant depletion through molecular recognition in the solution to oppose fast interfacial aggregation efficiently facilitates macroscopic motion and assembly. The resulting motility lifetime is extended remarkably from 120s to 2200s; with the improved kinetic energy, the assembly probability increases from 20% to 100%.

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