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Photoresponsive Structured Liquids Enabled by Molecular Recognition at Liquid–Liquid Interfaces

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.0c02555· OSTI ID:1634084
 [1];  [1];  [2];  [1]
  1. Beijing Univ. of Chemical Technology (China)
  2. Beijing Univ. of Chemical Technology (China); Univ. of Massachusetts, Amherst, MA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Using host-guest molecular recognition at the oil-water interface, a new type of photoresponsive nanoparticle surfactant (NPS) was designed and prepared to structure liquids. With the help of a polymeric surfactant, the interfacial host-guest interactions can be significantly enhanced, leading to the rapid formation and assembly of a NP monolayer and offering sufficient binding energy to hold the NPs in a jammed state. The assembly of the NPSs can be reversibly manipulated via a photoswitchable jamming-to-unjamming transition, endowing the interface as well as the macroscopic assemblies with responsiveness to the external trigger (photons). Finally, this study for the first time opens a pathway for the construction of multiresponsive, structured all-liquid systems by introducing host-guest chemistry, showing promising potential applications in encapsulation, delivery systems, and unique microfluidic devices.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Beijing National Science Foundation; National Natural Science Foundation (NNSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1634084
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 19 Vol. 142; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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