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Relaxing Wrinkles in Jammed Interfacial Assemblies

Journal Article · · Angewandte Chemie (International Edition)
 [1];  [2];  [2];  [3];  [3];  [4];  [3];  [5];  [6]
  1. Hunan Univ., Changsha (China). Key Lab. for Chemo/Bio-Sensing and Chemometrics; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  2. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  3. Hunan Univ., Changsha (China). Key Lab. for Chemo/Bio-Sensing and Chemometrics
  4. Hunan Univ., Changsha (China)
  5. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Molecular Foundry
  6. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Univ. of Massachusetts, Amherst, MA (United States); Tohoku Univ., Sendai (Japan). WPI-Advanced Inst. for Materials Research
Dynamic covalent bonding has emerged as a mean by which stresses in a network can be relaxed. Here, the strength of the bonding of ligands to nanoparticles at the interface between two immiscible liquids affect the same results in jammed assemblies of nanoparticle surfactants. Beyond a critical degree of overcrowding induced by the compression of jammed interfacial assemblies, the bonding of ligands to nanoparticles (NPs) can be broken, resulting in a desorption of the NPs from the interface. This reduces the areal density of nanoparticle surfactants at the interface, allowing the assemblies to relax, not to a fluid state but rather another jammed state. The relaxation of the wrinkles caused by the compression reflects the tendency of these assemblies to eliminate areas of high curvature, favoring a more planar geometry. Importantly, this enabled the generation of giant vesicular and multivesicular structures from these assemblies.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); US Army Research Office (ARO)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
2349269
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 36 Vol. 62; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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