4.8 Article

Temperature-Induced Tunable Assembly of Columnar Phases of Nanorods

期刊

ACS NANO
卷 14, 期 5, 页码 6007-6012

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsnano.0c01540

关键词

gold nanorods; assembling nanoparticles; temperature-induced assembly; interpolymer-complexation; PEG-grafted gold nanorods; small-angle X-ray scattering (SAXS)

资金

  1. U.S. Department of Energy (U.S. DOE), Office of Basic Energy Sciences, Division of Materials Sciences and Engineering
  2. U.S. DOE [DE-AC02-07CH11358, DE-AC0206CH11357]

向作者/读者索取更多资源

We report on the assembly of gold nanorods functionalized with poly(ethylene glycol) in aqueous suspensions by electrostatic control and hydrogen bonds provided by polyelectrolyte linkers (i.e., interpolymer complexation processes). Small-angle X-ray scattering reveals that the quality and stability of the assemblies into the hexagonal columnar phases increase with temperature. Our study shows that the lattice constant of the ordered structures is tunable over a wide range of values by the interplay between electrostatic and hydrophobic effects.

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